A hot rolling device for a metal base plate

Abstract

The application discloses a metal bottom plate hot rolling device and belongs to the technical field of metal processing equipment. Mainly including the base, the upper end surface of the base is fixed with a support frame on one side, the inside of the support frame is rotatably connected with a roller through a mounting seat on the upper and lower sides, and the device further comprises: a material scraping mechanism, which has two groups and is symmetrically arranged on the upper and lower sides of the inside of the support frame, the material scraping mechanism comprises a fixed rod two fixed with the support frame, a plurality of connecting rods are rotatably connected with the outer end of the fixed rod two, the outer end of the connecting rod is connected with a mounting groove, and the outer side of the mounting groove is detachably connected with a scraper assembly; the knife edge of the scraper assembly located on the upper side is in abutment with the upper end of the upper roller, and the knife edge of the scraper assembly located on the lower side is in abutment with the lower end of the lower roller. The metal bottom plate hot rolling device can simultaneously scrape off particle impurities during rolling, prevent plate scratches, pits and roller wear, realize online automatic cleaning in the low-speed rolling process, and has strong timeliness.

Description

Technical Field

[0001] This application relates to the field of metal processing equipment technology, specifically a hot rolling device for metal base plates. Background Technology

[0002] In die casting, cold chamber die casting is a widely used forming process where the pressure chamber is separate from the furnace, and it is suitable for high-melting-point materials such as aluminum and magnesium alloys. Hot rolling, on the other hand, uses high-temperature (above the recrystallization temperature of the metal) rolling mill to extrude metal billets, causing plastic deformation. It is mainly used to produce various metal raw materials, such as hot-rolled metal sheets.

[0003] However, the rolls in hot rolling mills need to be in direct contact with the metal sheet, which makes the roll surface prone to adhering to particulate impurities during the hot rolling process. These impurities mainly include oxide scale fragments from the metal billet surface, metal shavings generated during rolling, lubricant residues, or dust from the environment. Currently, die-casting plants mostly clean the surface impurities of hot rolling mill rolls manually after the machine is shut down, making it difficult to remove oxide scale fragments, metal dust, and other particulate impurities in real time during rolling, resulting in insufficient timeliness. If impurities remain for a long time, it can lead to scratches on the roll surface and indentation defects in the finished sheet.

[0004] Therefore, it is necessary to provide a hot rolling device for metal base plates to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a hot rolling device for metal base plates that can simultaneously scrape off particulate impurities during rolling, prevent scratches, pits and wear of the plate and rolls, and realize online automatic cleaning in the low-speed rolling process with strong timeliness.

[0007] The technical solution adopted by this application to solve its technical problem is: a hot rolling device for metal base plates, including a machine base, a support frame fixed on one side of the upper end face of the machine base, and rollers rotatably connected to the upper and lower sides of the support frame through mounting seats, and further including:

[0008] The scraping mechanism has two sets, which are symmetrically arranged on the upper and lower sides inside the support frame. The scraping mechanism includes a fixed rod two fixed to the support frame. Multiple connecting rods are rotatably connected to the outer end of the fixed rod two. The outer end of the connecting rod is connected to a mounting groove. A scraper assembly is detachably connected to the outside of the mounting groove.

[0009] The upper scraper assembly has its blade abutting against the upper end of the upper roller, and the lower scraper assembly has its blade abutting against the lower end of the lower roller.

[0010] Furthermore, the scraper assembly includes a blade, the rear end of which is fixedly connected to a blade holder. One end of the mounting groove is open, and the other end is closed. The blade holder is slidably fitted inside the mounting groove, and both ends are fixedly connected to the mounting groove.

[0011] Furthermore, the scraping mechanism also includes a fixed rod that is fixedly connected to the support frame. The lower side of the fixed rod is hinged to a plurality of spring rods, and the plurality of spring rods are respectively hinged to the middle of a plurality of connecting rods.

[0012] Furthermore, the upper and lower blades are inclined toward the rollers they contact, and the inclination direction is opposite to the rotation direction of the corresponding rollers.

[0013] Furthermore, a blowing mechanism is provided above the scraping mechanism located on the upper side. The blowing mechanism includes two fixed frames that are respectively fixed on both sides above the support frame. An air outlet pipe is fixedly connected between the lower ends of the two fixed frames. Multiple air outlets inclined towards the scraper assembly are fixedly provided on one side of the air outlet pipe. An air inlet pipe is fixedly connected to the middle of the air outlet pipe.

[0014] Furthermore, a debris collection mechanism is provided below the scraping mechanism on the lower side. The debris collection mechanism includes a collection groove that is slidably connected to the machine base. The outer end of the collection groove extends out of the machine base and is fixed with a handle.

[0015] Furthermore, a gearbox is fixed on the other side of the upper end face of the machine base. The two output ends of the gearbox drive two rollers respectively through a rotating shaft, and the input shaft of the gearbox is driven by an external motor.

[0016] Furthermore, guide seats are fixedly installed on both the front and rear sides of the support frame, and the upper end surface of the guide seats is flush with the upper edge of the roll located on the lower side.

[0017] The beneficial effects of this application are as follows: The hot rolling device for metal base plates provided by this application can simultaneously scrape off impurities such as oxide scale fragments and metal shavings during the rolling process by setting up two sets of scraping mechanisms, which can prevent surface defects such as scratches and pits on the plate caused by the retention of impurities, as well as the problem of abrasive wear of the rolls. It can realize online automatic cleaning of impurities on the surface of the rolls during low-speed rolling, which greatly reduces downtime compared with traditional manual cleaning and effectively solves the problem of insufficient timeliness of traditional manual downtime cleaning.

[0018] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a hot rolling apparatus for a metal base plate according to this application;

[0021] Figure 2 This is a partial structural schematic diagram of a support frame in a hot rolling device for metal base plates according to this application;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the scraping mechanism in a hot rolling device for metal base plates according to this application.

[0024] The following are the labeling elements in the figure:

[0025] 1. Base; 2. Support frame; 3. Mounting seat; 4. Roller; 5. Scraping mechanism; 51. Scraper assembly; 511. Blade; 512. Blade holder; 52. Mounting groove; 53. Connecting rod; 54. Fixing rod one; 55. Spring rod; 56. Fixing rod two; 6. Guide seat; 7. Blowing mechanism; 71. Fixing frame; 72. Air outlet pipe; 73. Air outlet; 74. Air inlet pipe; 8. Debris collection mechanism; 81. Collection groove; 82. Handle; 9. Rotating shaft; 10. Gearbox. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] like Figure 1-4As shown, this application provides a hot rolling apparatus for metal base plates, including a machine base 1. A support frame 2 is fixed to one side of the upper end face of the machine base 1. Mounting seats 3 are fixedly connected to both the upper and lower sides of the support frame 2. Rollers 4 are rotatably connected between the two sets of mounting seats 3. A space is left between the two rollers 4, and the spacing is set according to the required hot rolling thickness of the metal base plate. A gearbox 10 is fixed to the other side of the upper end face of the machine base 1. The two output ends of the gearbox 10 drive the two rollers 4 to rotate through a rotating shaft 9, respectively. The input shaft of the gearbox 10 is driven by an external motor (not shown). During operation, the motor drives the rollers 4 through the gearbox 10 and the rotating shaft 9 to apply extrusion pressure to the metal base plate to be heated entering the gap, thereby achieving plastic deformation.

[0029] The support frame 2 has guide seats 6 fixedly installed on both the front and rear sides. The upper surface of the guide seat 6 is flush with the upper edge of the roll 4 located on the lower side, which is suitable for providing stable support for the metal base plate during loading and unloading.

[0030] The support frame 2 is symmetrically equipped with scraping mechanisms 5 on its upper and lower sides. The scraping mechanisms 5 are used to clean the rollers 4 and prevent impurities such as oxide scale from remaining on the surface of the rollers 4. Specifically, the scraping mechanism 5 includes a fixed rod 56 fixedly connected to the support frame 2. The outer end of the fixed rod 56 is rotatably connected to multiple connecting rods 53. The outer ends of the multiple connecting rods 53 are connected to a mounting groove 52. A scraper assembly 51 is detachably connected to the outside of the mounting groove 52. The upper scraper assembly 51 has its blade abutting against the upper end of the upper roller 4, and the lower scraper assembly 51 has its blade abutting against the lower end of the lower roller 4.

[0031] Because of the scraper assembly 51, if there are particulate impurities on the surface of the roll 4 during operation, they will be scraped off when passing through the scraper assembly 51, thus playing a cleaning role. It can provide an online automatic cleaning function during low-speed rolling. Compared with the manual cleaning method currently used in die casting plants, it reduces the labor intensity of manual cleaning and is more timely, which can further ensure product quality.

[0032] The scraper assembly 51 includes a blade 511, with a blade holder 512 fixedly connected to its rear end. The blade holder 512 has a T-shaped cross-section, with one end of a mounting groove 52 open and the other end closed, facilitating the positioning of the inserted blade holder 512. The blade holder 512 slides within the mounting groove 52, and both ends are fixed to the mounting groove 52 by bolts. For disassembly, the blade holder 512 can be removed by unscrewing the bolts, facilitating replacement and maintenance.

[0033] It should be noted that the upper and lower blades 511 are inclined toward the roller 4 they contact, and the inclination direction is opposite to the rotation direction of the corresponding roller 4. The inclined setting can form a "cutting" cleaning, reducing the impact of vertical pressure on the roller.

[0034] In addition, the scraping mechanism 5 also includes a fixed rod 54 fixedly connected to the support frame 2. Multiple spring rods 55 are hinged to the lower side of the fixed rod 54. The multiple spring rods 55 are respectively hinged to the middle of the multiple connecting rods 53. The spring rods 55 adopt the elastic adjustable springs (such as springs with adjustable effective coils) in the prior art. By setting the spring rods 55, the elasticity of the spring rods 55 can be used to ensure that the blade 511 is always in close contact with the roll 4. The contact pressure between the blade holder 512 and the roll 4 can also be controlled by adjusting the elasticity of the spring rods 55, so as to ensure the impurity stripping effect and prevent excessive pressure from scratching the surface of the roll 4.

[0035] A blowing mechanism 7 is provided above the upper scraping mechanism 5. The blowing mechanism 7 includes two fixed frames 71, which are respectively fixed on both sides above the support frame 2. An air outlet pipe 72 is fixedly connected between the lower ends of the two fixed frames 71. Multiple air outlets 73 inclined towards the scraper assembly 51 are fixedly provided on one side of the air outlet pipe 72. An air inlet pipe 74 is fixedly connected to the middle of the air outlet pipe 72. The air inlet pipe 74 is connected to an external air supply device (not shown in the figure). During operation, the external air supply device is connected to the air inlet pipe 74 through an air pipeline to supply air to the air outlet pipe 72. The airflow blows through the air outlets 73 toward the contact surface between the scraper assembly 51 and the upper roller 4, thereby blowing off the cleaned impurity particles.

[0036] Below the scraping mechanism 5 on the lower side is a debris collection mechanism 8. The debris collection mechanism 8 includes a collection trough 81 that is slidably connected to the base 1. When the scraping mechanism 5 on the lower side is working, the particle impurities scraped off will fall into the collection trough 81 due to gravity, making it easy to clean. The outer end of the collection trough 81 extends out of the base 1 and is fixedly connected to a handle 82, which is suitable for pulling out the collection trough 81 to clean the particle impurities accumulated inside.

[0037] Working principle: The metal base plate to be heated is placed on the guide seat 6 from the feed end. The external motor drives the gearbox 10, which drives the upper and lower rollers 4 to rotate in opposite directions through the rotating shaft 9, applying extrusion pressure to the metal base plate to achieve plastic deformation.

[0038] During the rotation of the roll 4, surface particulate impurities are scraped off by the contact blade 511. The elastic force of the spring rod 55 ensures that the blade 511 and the roll 4 remain in continuous contact, and its adjustable characteristics allow the contact pressure to adapt to different impurity hardness, avoiding damage to the roll 4. At the same time, the upper blowing mechanism 7 blows off the impurities cleaned by the blade 511 with airflow to prevent secondary adhesion; the impurities on the lower side fall into the collection tank 81 due to gravity, and after accumulating to a certain amount, they are pulled out by the handle 82 for centralized treatment.

[0039] The cleaning process is carried out simultaneously with the rolling process, without the need to stop the machine. The hot-rolled metal base plate is output from the discharge end, realizing automated continuous production.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A hot rolling apparatus for metal base plates, comprising a base (1), a support frame (2) fixed to one side of the upper end face of the base (1), and rolls (4) rotatably connected to the upper and lower sides of the support frame (2) via mounting seats (3), characterized in that, Also includes: The scraping mechanism (5) has two sets, which are symmetrically arranged on the upper and lower sides inside the support frame (2). The scraping mechanism (5) includes a fixed rod two (56) fixed to the support frame (2). The outer end of the fixed rod two (56) is rotatably connected to a plurality of connecting rods (53). The outer end of the connecting rod (53) is connected to a mounting groove (52). The outer side of the mounting groove (52) is detachably connected to a scraper assembly (51). The upper scraper assembly (51) has its blade abutting against the upper end of the upper roller (4), and the lower scraper assembly (51) has its blade abutting against the lower end of the lower roller (4).

2. The hot rolling apparatus for metal base plates according to claim 1, characterized in that: The scraper assembly (51) includes a blade (511), and a blade holder (512) is fixedly connected to the rear end of the blade (511). One end of the mounting groove (52) is open and the other end is closed. The blade holder (512) is slidably fitted inside the mounting groove (52) and both ends are fixedly connected to the mounting groove (52).

3. The hot rolling apparatus for metal base plates according to claim 2, characterized in that: The scraping mechanism (5) also includes a fixed rod (54) fixedly connected to the support frame (2). The lower side of the fixed rod (54) is hinged to a plurality of spring rods (55), and the plurality of spring rods (55) are respectively hinged to the middle of a plurality of connecting rods (53).

4. A hot rolling apparatus for metal base plates according to claim 2, characterized in that: The two blades (511) are inclined toward the roller (4) they contact, and the inclination direction is opposite to the rotation direction of the corresponding roller (4).

5. A hot rolling apparatus for metal base plates according to claim 1, characterized in that: A blowing mechanism (7) is provided above the scraping mechanism (5) located on the upper side. The blowing mechanism (7) includes two fixed frames (71) fixed on both sides above the support frame (2). An air outlet pipe (72) is fixedly connected between the lower ends of the two fixed frames (71). A plurality of air outlets (73) inclined towards the scraper assembly (51) are fixedly provided on one side of the air outlet pipe (72). An air inlet pipe (74) is fixedly connected to the middle of the air outlet pipe (72).

6. A hot rolling apparatus for metal base plates according to claim 1, characterized in that: Below the scraping mechanism (5) located on the lower side, there is a debris collection mechanism (8). The debris collection mechanism (8) includes a collection groove (81) that is slidably connected to the base (1). The outer end of the collection groove (81) extends out of the base (1) and is fixed with a handle (82).

7. A hot rolling apparatus for metal base plates according to claim 1, characterized in that: A gearbox (10) is fixed on the other side of the upper end face of the base (1). The two output ends of the gearbox (10) drive two rollers (4) respectively through the rotating shaft (9). The input shaft of the gearbox (10) is driven by an external motor.

8. A hot rolling apparatus for metal base plates according to claim 7, characterized in that: Guide seats (6) are fixedly installed on both the front and rear sides of the support frame (2), and the upper end face of the guide seat (6) is flush with the upper edge of the roll (4) located on the lower side.

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