Efficient steel plate cutting device and control method thereof

Abstract

The invention discloses an efficient steel plate cutting device and a control method thereof, and belongs to the technical field of steel plate cutting machining. A cutting mechanism is arranged below the position between the connecting support and the auxiliary frame, the cutting mechanism comprises a wall sealing plate and a supporting keel, a cutting motor and a cutting blade are arranged at the top of the supporting keel, a temperature returning pushing frame is arranged at the top of the auxiliary frame, and a limiting pressing frame is arranged at the top of the connecting support. A limiting bracket is arranged between the limiting pressing frame and the temperature returning pushing frame; according to the method, the temperature of a steel plate cutting area can be made to be gradually close to friction heat generated by cutting, steel plate deformation caused by the phenomena of shock heating high temperature, uneven heat distribution and the like generated in the cutting process is effectively avoided, the situation that the strength and toughness of a steel plate material are changed due to heat accumulation sudden drop is avoided, and by combining pre-heating of the steel plate and buffering cooling after cutting, the cutting efficiency is improved. And stress existing in local deformation before and after steel plate cutting is effectively removed.

Description

Technical Field

[0001] The invention relates to the technical field of steel plate cutting processing, and in particular to an efficient steel plate cutting device and a control method thereof. Background Art

[0002] As the market demand for personalized products increases, steel plate cutting can be customized according to the special requirements of customers to produce unique products. In the manufacture of some high-end equipment and precision instruments, there are often complex structures and high-precision requirements. Steel plate cutting can realize these complex designs. The cut steel plate parts are more convenient to assemble and weld, which can improve production efficiency and the overall quality of the product. For example, parts in the aerospace field require precisely cut steel plates to meet their lightweight and high-strength requirements. In short, steel plate cutting is an indispensable and important link in modern industrial production. It provides steel plate materials that meet the needs of various fields and promotes the development and progress of industry.

[0003] In combination with the above, it should be noted that during the cutting process of traditional steel plates, the heat distribution generated during cutting is uneven due to the influence of the processing environment and processing equipment, or the cutting stress may cause the steel plate to deform, which is a serious problem for steel plates that need to maintain flatness and dimensional accuracy; at the same time, the heat generated during the cutting process may cause the structure and properties of the steel plate near the cutting edge to change, forming a heat-affected zone, which may reduce the strength, toughness and other properties of the steel plate, and the heat-affected zone may increase hardness and brittleness;

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The object of the present invention is to provide an efficient steel plate cutting device and a control method thereof, which preheats the steel plate cutting area during transportation in advance, so as to gradually approach the temperature of the steel plate cutting area to the friction heat generated by cutting, thereby effectively avoiding deformation of the steel plate caused by sudden high temperature and uneven heat distribution during cutting.

[0006] By temporarily covering and protecting the high-temperature gathering area after steel plate cutting and providing secondary high-temperature airflow to flush it and assist in slowing down the high temperature, the changes in the strength and toughness of the steel plate material caused by the sudden drop in heat accumulation can be effectively avoided. At the same time, combined with the advance preheating of the steel plate and the buffer cooling after cutting, the stress existing in the local deformation of the steel plate before and after cutting can be effectively removed to solve the problem raised.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An efficient steel plate cutting device and a control method thereof, comprising a connecting bracket, a sub-frame is arranged side by side on the end surface of the connecting bracket, a cutting mechanism is arranged below the connecting bracket and the sub-frame, the cutting mechanism comprises a wall sealing plate and a supporting keel, a cutting motor and a cutting blade are arranged on the top of the supporting keel, a temperature recovery push frame is arranged on the top of the sub-frame, a limited position pressing frame is arranged on the top of the connecting bracket, and a limited position bracket is arranged between the limited position pressing frame and the temperature recovery push frame;

[0009] A pressure roller is arranged on the top of the limit pressure frame, a temperature locking cylinder cover is arranged above the limit pressure frame, a ventilation arc frame is arranged on the inner wall of the temperature locking cylinder cover, and an adaptor bracket is arranged at the bottom of the temperature return push frame.

[0010] Furthermore, a conveying frame is arranged above the connecting bracket and the sub-frame, and central cylinders are symmetrically arranged on both sides of the top of the end surfaces of the connecting bracket and the sub-frame close to each other, and side cylinders are symmetrically arranged on the outer sides of the connecting bracket and the top of the sub-frame, inner push cylinders are arranged on the inner walls of both sides of the conveying frame, and a follower support plate is arranged between the inner push cylinders, a heater is arranged on the top of the follower support plate, and an active cylinder is arranged on the outer bottom of the conveying frame.

[0011] Furthermore, the supporting keel is surrounded by wall panels, an air suction frame is provided on the top inner wall of the wall panels, a plurality of discharge ports are provided at the bottom of one side of the wall panels, an air pump is provided at the bottom corner of the other side of the supporting keel, a driving base is slidably provided on the middle frame of the supporting keel, and a lifting cylinder connected to the cutting motor is penetrated through the middle of the driving base, and the cutting blade is installed on the output end at the top of the cutting motor.

[0012] Furthermore, a lifting cylinder frame 1 connected to the active cylinder is arranged on both sides of the limit pressure frame, an adjusting arm connected to the pressure roller is arranged on the top of the limit pressure frame, a heater 2 is arranged at the center of the inner top wall of the limit pressure frame, and extrusion plates are arranged at both ends of the heater 2, and a downward pressure cylinder connected to the limit pressure frame is arranged on the top of the extrusion plate.

[0013] Furthermore, two lifting cylinder frames connected to the active cylinder are arranged on both sides of the temperature recovery push frame, a plurality of guide plates are arranged at the center of the inner top wall of the temperature recovery push frame, an air jet is arranged on the inner wall of the temperature recovery push frame at one end of the guide plate, movable sealing plates are embedded on the inner top walls at both ends of the temperature recovery push frame, and a limiting cylinder connected to the movable sealing plate is arranged on the top of the temperature recovery push frame.

[0014] Furthermore, a sub-bracket with the same structure is provided on the end face of the limiting bracket, side legs connected to the central cylinder are provided at the bottom of both sides of the limiting bracket, a movable plate is provided above the limiting bracket, and a lifting cylinder connected to the movable plate is provided on the top of the limiting bracket.

[0015] Furthermore, slides connected to the side cylinders are arranged at the bottom of both sides of the temperature-locking cylinder cover, an end plate is arranged on the end face of the temperature-locking cylinder cover away from the limiting bracket, and a hanging curtain is arranged at the bottom of the end plate, and multiple groups of partition plates are arranged on the top wall inside the temperature-locking cylinder cover, and ventilation arc frames are arranged on the surfaces of the partition plates and the end plates.

[0016] A control method for an efficient steel plate cutting device comprises the following steps

[0017] S1: The connecting bracket and the sub-rack are respectively connected to the external production line conveying equipment, and the steel plate to be processed is transported by the external production conveying equipment to the conveying rack on the connecting bracket;

[0018] S2: The active cylinder on the connecting bracket drives the limit pressing frame to move close to the steel through the lifting cylinder frame 1, and the lifting cylinder frame 1 drives the entire limit pressing frame to slide down until the limit pressing frame is attached to the upper surface of the steel, and the pressing cylinder drives the extrusion plate to slide down, further limiting the steel plate between the limit pressing frame and the conveying roller, and the heater 2 preheats the top of the steel plate to be cut in advance;

[0019] The inner push cylinder on the connecting bracket drives the follower support plate and the limit pressure frame to move synchronously, and the heater on the follower support plate preheats the bottom of the steel plate to be cut in advance;

[0020] S3: The lifting cylinder drives the movable plate to slide down, and the area to be cut of the steel plate is lifted up. The limit pressing frame and the temperature recovery pushing frame are driven by the active cylinders on the connecting bracket and the auxiliary frame respectively. The pressing cylinder drives the extrusion plate to slide down to squeeze one end of the steel plate, and the limit cylinder drives the movable sealing plate to slide down to squeeze and limit the other end of the steel plate.

[0021] S4: The lifting cylinder drives the cutting motor to slide upward axially until the cutting blade steadily contacts the steel plate. The driven base drives the cutting motor to slide axially along the skeleton supporting the keel, so that the cutting blade performs directional reciprocating cutting on the cutting area of ​​the steel plate. The air pump is connected to the suction frame, the air jet and the air exchange arc frame through pipelines. The suction frame forms a negative pressure exhaust environment in the area below the cutting blade.

[0022] S5: The limit pressing frame and the reheating push frame simultaneously release the restriction on the steel plate, and the pressure roller and the conveying roller run synchronously, and the cut steel plate is further moved and pushed to one end of the reheating push frame. The limit cylinder drives the movable sealing plate to slide down to cover the steel plate cutting area. The jet frame guides the secondary high-temperature air extracted by the suction port and the suction frame to be injected between the guide plates, and enters the secondary high-temperature airflow between the bottom of the steel plate and the conveying roller and the adapter bracket. It is blocked by the adapter push frame, and most of it flows back to the limit bracket area. The adapter bracket is driven by the inner push cylinder on the sub-frame, and it keeps synchronous axial movement with the reheating push frame;

[0023] S6: When the limit pressure frame and the temperature recovery push frame release the limit cutting process on the steel plate, the residual heat inside the limit pressure frame dissipates and flows upward, and part of the high-temperature air generated by the cutting flows upward synchronously and gathers in the top inner wall area of ​​the two sets of temperature-locking cylinder covers. Affected by the partition plate, the gathered secondary high-temperature airflow flows step by step to the two ends of the temperature-locking cylinder covers. Affected by the suction port and the nozzle, it is continuously sprayed by the jet frame under the circulation extraction action of the air pump, forming a heat cycle inside the temperature-locking cylinder cover to reduce heat overflow loss.

[0024] The beneficial effects of the present invention are:

[0025] 1. The present invention performs a preheating treatment on the steel plate cutting area during transportation, so that the temperature of the steel plate cutting area is gradually close to the friction heat generated by cutting, effectively avoiding the deformation of the steel plate caused by the sudden high temperature and uneven heat distribution during cutting, and temporarily covers and protects the high-temperature gathering area after the steel plate is cut, and provides a secondary high-temperature airflow to flush it to assist in the slow drop of high temperature, effectively avoiding the change of the strength and toughness of the steel plate material caused by the sudden drop of heat accumulation, and at the same time, combining the advance preheating of the steel plate and the buffer cooling after cutting, effectively removing the stress existing in the local deformation of the steel plate before and after cutting;

[0026] 2. The present invention realizes shrouding protection of the cutting area of ​​the steel plate through the linkage use of the cutting mechanism, the connecting bracket and the temperature-locking cylinder cover, and utilizes a temporary combination of a limit pressure frame, a temperature return push frame, a limit bracket and a sub-bracket to form a multi-point limit clamping at both ends of the steel plate cutting area, effectively avoiding the negative impact of the steel plate shaking on the cutting, and at the same time, the collected high temperature in the cutting area is subjected to fixed-point negative pressure extraction, effectively avoiding the formation of a heat-affected zone in the steel plate cutting area, and the residual hot air generated by cutting and preheating is recycled and reused to maintain the temperature environment inside the temperature-locking cylinder cover, and the steel plate area after cutting is subjected to pneumatic cooling treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0028] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0029] Figure 2 It is a partial structural stereogram of the connecting bracket of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the connection bracket and the co-pilot of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the conveying frame of the present invention;

[0032] Figure 5It is a structural schematic diagram of the cutting mechanism of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the limiting bracket of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the temperature-locking tube cover of the present invention;

[0035] Figure 8 It is a structural schematic diagram of the position limiting press frame of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the temperature recovery push rack of the present invention;.

[0037] Figure numerals: 1, connecting bracket; 101, auxiliary frame; 102, central cylinder; 103, side cylinder; 104, conveying frame; 105, inner push cylinder; 106, follow-up support plate; 107, heater 1; 108, active cylinder; 2, temperature lock cylinder cover; 201, slide frame; 202, end plate; 203, hanging curtain; 204, partition board; 205, ventilation arc frame; 3, cutting mechanism; 301, discharge port; 302, wall sealing board; 303, suction frame; 304, support keel; 305, driving base; 306, top Lifting cylinder; 307, cutting blade; 308, cutting motor; 309, air pump; 5, limiting bracket; 501, side leg; 502, movable plate; 503, auxiliary bracket; 6, limiting pressure rack; 601, adjusting arm; 602, pressure roller; 603, downward pressure cylinder; 604, lifting cylinder frame one; 605, heater two; 606, extrusion plate; 7, temperature recovery push rack; 701, limiting cylinder; 702, movable sealing plate; 703, lifting cylinder frame two; 704, guide plate; 705, jet nozzle; 706, adapter bracket. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1: This embodiment is used to solve the problem that during the cutting process of traditional steel plates, the heat distribution of the steel plates during cutting may be uneven or the cutting stress may cause the steel plates to deform due to the influence of the processing environment and processing equipment. This is a serious problem for steel plates that need to maintain flatness and dimensional accuracy. At the same time, the heat generated during the cutting process may cause the structure and properties of the steel plates near the cutting edge to change, forming a heat-affected zone, which may reduce the strength, toughness and other properties of the steel plates, and the heat-affected zone may experience increased hardness and brittleness.

[0040] See also Figure 1 - Fig. 9 As shown, this embodiment is an efficient steel plate cutting device and a control method thereof, comprising a connecting bracket 1, a sub-frame 101 is arranged side by side on the end face of the connecting bracket 1, a cutting mechanism 3 is arranged below the connecting bracket 1 and the sub-frame 101, the cutting mechanism 3 comprises a wall sealing plate 302 and a supporting keel 304, a cutting motor 308 and a cutting blade 307 are arranged on the top of the supporting keel 304, a temperature recovery push frame 7 is arranged on the top of the sub-frame 101, a limited position pressing frame 6 is arranged on the top of the connecting bracket 1, and a limited position bracket 5 is arranged between the limited position pressing frame 6 and the temperature recovery push frame 7, the connecting bracket 1 and the sub-frame 101 are respectively connected to the external production line conveying equipment, and the steel plate to be processed is conveyed by the external production conveying equipment to the conveying frame 104 on the connecting bracket 1, and the conveying frame 104 drives the steel plate to be smoothly conveyed to the limited position bracket 5 through the synchronous rotation of multiple groups of conveying rollers on the surface;

[0041] A conveying frame 104 is arranged above the connecting bracket 1 and the sub-frame 101, and central cylinders 102 are symmetrically arranged on both sides of the top of the end surfaces of the connecting bracket 1 and the sub-frame 101 that are close to each other, and side cylinders 103 are symmetrically arranged on the outer sides of the top of the connecting bracket 1 and the sub-frame 101, inner push cylinders 105 are arranged on the inner walls of both sides of the conveying frame 104, and a follower support plate 106 is arranged between the inner push cylinders 105, a heater 107 is arranged on the top of the follower support plate 106, and an active cylinder 108 is arranged on the outer bottom of the conveying frame 104. While the heater 105 heats the steel plate, the inner push cylinder 105 on the connecting bracket 1 drives the follower support plate 106 to move synchronously with the limiting pressure frame 6, and the heater 107 on the follower support plate 106 performs preheating treatment on the bottom of the area to be cut of the steel plate in advance, so as to promote the steady increase of the preheating temperature and the cutting friction temperature, avoid the formation of a heat-affected zone, and at the same time avoid the uneven distribution of heat generated during cutting or the deformation of the steel plate caused by the cutting stress;

[0042] The supporting keel 304 is surrounded by a sealing wall board 302, an air suction frame 303 is arranged on the top inner wall of the sealing wall board 302, a plurality of discharge ports 301 are arranged at the bottom of one side of the sealing wall board 302, and an air pump 309 is arranged at the bottom corner of the other side of the supporting keel 304. Sparks and debris generated by cutting fall into the sealing wall board 302 under the influence of their own weight and the rotation inertia of the cutting blade 307.

[0043] During the active cutting of the steel plate by the cutting blade 307, the air pump 309 is connected to the suction frame 303, the air jet 705 and the ventilation arc frame 205 through pipelines. The suction frame 303 forms a negative pressure exhaust environment in the area below the cutting blade 307, so that the residual hot air preheated around the steel plate and the high-temperature hot air generated by cutting are pulled back and transported to the ventilation arc frame 205;

[0044] A driving base 305 is slidably provided on the middle frame of the supporting keel 304, and a lifting cylinder 306 connected to the cutting motor 308 is penetrated in the middle of the driving base 305. The cutting blade 307 is installed on the output end at the top of the cutting motor 308. The lifting cylinder 306 drives the cutting motor 308 to slide axially upward until the cutting blade 307 steadily contacts the steel plate, and the cutting motor 308 starts and drives the cutting blade 307 to rotate at a high speed. The driven base 305 drives the cutting motor 308 to slide axially along the frame of the supporting keel 304, prompting the cutting blade 307 to perform directional reciprocating cutting processing on the cutting area of ​​the steel plate.

[0045] Embodiment 2: This embodiment is an efficient steel plate cutting device and a control method thereof, comprising a pressure roller 602 disposed on the top of a limit pressure frame 6, a temperature lock cylinder cover 2 disposed above the limit pressure frame 6, a ventilation arc frame 205 disposed on the inner wall of the temperature lock cylinder cover 2, and an adapter bracket 706 disposed at the bottom of the temperature return push frame 7;

[0046] A lifting cylinder frame 604 connected to the active cylinder 108 is arranged on both sides of the limit pressure frame 6, and an adjusting arm 601 connected to the pressure roller 602 is arranged on the top of the limit pressure frame 6. When approaching the limit bracket 5 area, the extrusion limit of the steel plate is released, and the adjusting arm 601 drives the pressure roller 602 to deflect downward until it abuts against the top surface of the steel plate. A micro motor connected to the pressure roller 602 is arranged on the outer side of the adjusting arm 601. The micro motor drives the pressure roller 602 to rotate, and the pressure roller 602 cooperates with the conveying roller to move the steel plate smoothly until the preheated area to be cut is moved above the limit bracket 5; a heater 605 is arranged at the center of the inner top wall of the limit pressure frame 6, and extrusion plates 606 are arranged at both ends of the heater 605, and a downward pressure cylinder 603 connected to the limit pressure frame 6 is arranged on the top of the extrusion plate 606;

[0047] When the steel plate enters the temperature-locking cylinder cover 2 on the connecting bracket 1, the active cylinder 108 on the connecting bracket 1 drives the limiting pressure frame 6 to move close to the steel through the lifting cylinder frame 1 604, until the steel moves on the conveying frame 104 and the cutting area is exposed, and the limiting pressure frame 6 moves above the cutting area of ​​the steel, and the lifting cylinder frame 1 604 drives the entire limiting pressure frame 6 to slide down until the limiting pressure frame 6 is attached to the upper surface of the steel, and the pressing cylinder 603 drives the extrusion plate 606 to slide down, further limiting the steel plate between the limiting pressure frame 6 and the conveying roller, so that a sealed space is formed between the heater 2 605 and the steel plate, and the heater 2 605 preheats the top of the nearby steel plate to be cut in advance;

[0048] A lifting cylinder frame 703 connected to the active cylinder 108 is arranged on both sides of the temperature return push frame 7, a plurality of guide plates 704 are arranged at the center of the inner top wall of the temperature return push frame 7, an air jet 705 is arranged on the inner wall of the temperature return push frame 7 at one end of the guide plate 704, and a movable sealing plate 702 is embedded on the inner top wall at both ends of the temperature return push frame 7, and a limit cylinder 701 connected to the movable sealing plate 702 is arranged on the top of the temperature return push frame 7;

[0049] The end surface of the limiting bracket 5 is provided with a sub-bracket 503 of the same structure, the bottom of both sides of the limiting bracket 5 is provided with a side bracket 501 connected to the central cylinder 102, a movable plate 502 is provided above the limiting bracket 5, and a lifting cylinder connected to the movable plate 502 is provided on the top of the limiting bracket 5. When the area to be cut of the steel plate is located above the limiting bracket 5, the lifting cylinder drives the movable plate 502 to slide up, and the area to be cut of the steel plate is lifted up. The limiting pressing frame 6 and the temperature return pushing frame 7 are respectively supported by the connecting bracket 1 and The active cylinder 108 on the sub-frame 101 drives, and the local areas at the bottom of the lifting cylinder frame 1 604 and the lifting cylinder frame 2 703 are inserted into the notches on both sides of the limit bracket 5, so as to realize the temporary splicing and combination of the limit pressing frame 6, the temperature return push frame 7, the limit bracket 5 and the sub-bracket 503, and a certain gap is reserved between the limit pressing frame 6 and the temperature return push frame 7, and the pressing cylinder 603 drives the extrusion plate 606 to slide down to extrude one end of the steel plate, and the limit cylinder 701 drives the movable sealing plate 702 to slide down to squeeze the other end of the steel plate to limit the position;

[0050] After the steel plate is cut and separated, the limit pressing frame 6 and the temperature return push frame 7 simultaneously release the restriction on the steel plate, and the pressing roller 602 and the conveying roller run synchronously to move the cut steel plate further to one end of the temperature return push frame 7;

[0051] When waiting for the steel plate cutting area to enter the middle of the temperature recovery push rack 7, the limit cylinder 701 further drives the movable sealing plate 702 to slide down to cover the steel plate cutting area, and the secondary high-temperature air extracted by the jet frame guide suction port and the suction rack 303 is injected between the guide plate 704, and a flowing secondary high-temperature airflow is formed between the guide plate 704 and the steel plate. The secondary high-temperature airflow is affected by the internal environment of the temperature-locking cylinder cover 2, resulting in temperature loss, as well as the temperature loss generated during transportation, and then the temperature of the secondary high-temperature airflow is gradually reduced with the suspension of the operation of multiple groups of heaters and the stopping time of cutting. The secondary high-temperature airflow affected by the guide plate 704 The warm airflow passes through the steel plate cutting area and seeps along the cutting gap, causing the temperature of the steel plate cutting area to drop step by step under the interference of the secondary high-temperature airflow, providing a temperature slow-down transition environment for the steel plate area that has just been cut, effectively avoiding the sudden temperature drop directly exposed to the external environment, and reducing the impact of material changes caused by the temperature difference in the cutting area. The secondary high-temperature airflow entering between the bottom of the steel plate and the conveying roller and the adapter bracket 706 is blocked by the adapter push frame, and most of it flows back to the limit bracket 5 area. The adapter bracket 706 is driven by the inner push cylinder 105 on the sub-frame 101, and it keeps synchronous axial movement with the temperature return push frame 7;

[0052] Slide racks 201 connected to the side cylinders 103 are arranged at the bottom of both sides of the temperature-locking cylinder cover 2, an end surface of the temperature-locking cylinder cover 2 away from the limiting bracket 5 is provided with an end plate 202, and a hanging curtain 203 is arranged at the bottom of the end plate 202, a plurality of groups of partition plates 204 are arranged on the top wall of the temperature-locking cylinder cover 2, and ventilation arc frames 205 are arranged on the surfaces of the partition plates 204 and the end plates 202, the top of the ventilation arc frame 205 is a suction port, and the bottom of the ventilation arc frame 205 is a nozzle, the nozzle is used to guide the input hot air to be sprayed into the interior of the temperature-locking cylinder cover 2 to maintain the internal temperature of the temperature-locking cylinder cover 2, and the suction port is used to absorb the high-temperature hot air gathered at the top of the temperature-locking cylinder cover 2;

[0053] When the limiting pressure frame 6 and the temperature recovery push frame 7 release the limiting cutting process on the steel plate, the residual heat inside the limiting pressure frame 6 dissipates and flows upward, and part of the high-temperature air generated by the cutting flows upward synchronously and gathers in the top inner wall area of ​​the two groups of temperature-locking cylinder covers 2. Affected by the partition plate 204, the gathered secondary high-temperature airflow flows step by step to the two ends of the temperature-locking cylinder covers 2. Affected by the suction port and the nozzle, under the circulation extraction action of the air pump 309, it is continuously sprayed by the jet frame, forming a heat cycle inside the temperature-locking cylinder cover 2 to reduce heat overflow loss.

[0054] Combining Example 1 and Example 2, the temperature of the steel plate cutting area can be gradually approached to the friction heat generated by cutting, effectively avoiding the deformation of the steel plate caused by the sudden high temperature and uneven heat distribution during cutting, and avoiding the change of the strength and toughness of the steel plate material caused by the sudden drop in heat accumulation. Combined with the early preheating of the steel plate and the buffer cooling after cutting, the stress caused by the local deformation of the steel plate before and after cutting can be effectively removed.

[0055] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An efficient steel plate cutting device, comprising a connecting bracket (1), characterized in that: The end surface of the connecting bracket (1) is provided with a sub-frame (101) in parallel, a cutting mechanism (3) is provided below the connecting bracket (1) and the sub-frame (101), the cutting mechanism (3) comprises a wall sealing plate (302) and a supporting keel (304), a cutting motor (308) and a cutting blade (307) are provided on the top of the supporting keel (304), a temperature recovery push frame (7) is provided on the top of the sub-frame (101), a limiting pressure frame (6) is provided on the top of the connecting bracket (1), and a limiting bracket (5) is provided between the limiting pressure frame (6) and the temperature recovery push frame (7); A pressure roller (602) is arranged on the top of the limiting pressure frame (6), and a temperature-locking cylinder cover (2) is arranged above the limiting pressure frame (6), a ventilation arc frame (205) is arranged on the inner wall of the temperature-locking cylinder cover (2), and an adaptor bracket (706) is arranged at the bottom of the temperature-returning push frame (7).

2. The efficient steel plate cutting device according to claim 1, characterized in that: A conveying frame (104) is arranged above the connecting frame (1) and the sub-frame (101), and central cylinders (102) are symmetrically arranged on both sides of the top of the end surfaces of the connecting frame (1) and the sub-frame (101) close to each other, and side cylinders (103) are symmetrically arranged on the outer sides of the top of the connecting frame (1) and the sub-frame (101), inner push cylinders (105) are arranged on the inner walls of both sides of the conveying frame (104), and a follower support plate (106) is arranged between the inner push cylinders (105), a heater 1 (107) is arranged on the top of the follower support plate (106), and an active cylinder (108) is arranged on the outer bottom of the conveying frame (104).

3. The efficient steel plate cutting device according to claim 2, characterized in that: The supporting keel (304) is surrounded by wall panels (302), an air suction frame (303) is arranged on the inner wall of the top of the wall panels (302), a plurality of discharge ports (301) are arranged at the bottom of one side of the wall panels (302), an air pump (309) is arranged at the bottom corner of the other side of the supporting keel (304), a driving base (305) is slidably arranged on the middle frame of the supporting keel (304), and a lifting cylinder (306) connected to a cutting motor (308) is arranged through the middle of the driving base (305), and the cutting blade (307) is installed on the output end at the top of the cutting motor (308).

4. The efficient steel plate cutting device according to claim 2, characterized in that: A lifting cylinder frame (604) connected to the active cylinder (108) is arranged on both sides of the limit pressure frame (6), an adjusting arm (601) connected to the pressure roller (602) is arranged on the top of the limit pressure frame (6), a heater (605) is arranged at the center of the top wall of the limit pressure frame (6), and extrusion plates (606) are arranged at both ends of the heater (605), and a downward pressure cylinder (603) connected to the limit pressure frame (6) is arranged on the top of the extrusion plate (606).

5. The efficient steel plate cutting device according to claim 2, characterized in that: A lifting cylinder frame (703) connected to the active cylinder (108) is arranged on both sides of the reheating push frame (7), a plurality of guide plates (704) are arranged at the center of the inner top wall of the reheating push frame (7), an air jet (705) is arranged on the inner wall of the reheating push frame (7) at one end of the guide plate (704), movable sealing plates (702) are embedded on the inner top walls at both ends of the reheating push frame (7), and a limit cylinder (701) connected to the movable sealing plate (702) is arranged on the top of the reheating push frame (7).

6. The efficient steel plate cutting device according to claim 2, characterized in that: The end surface of the limiting bracket (5) is provided with a secondary bracket (503) of the same structure, the bottom of both sides of the limiting bracket (5) are provided with side brackets (501) connected to the central cylinder (102), a movable plate (502) is provided above the limiting bracket (5), and a lifting cylinder connected to the movable plate (502) is provided at the top of the limiting bracket (5).

7. The efficient steel plate cutting device according to claim 2, characterized in that: Slides (201) connected to the side cylinders (103) are arranged at the bottom of both sides of the temperature-locking cylinder cover (2); an end surface of the temperature-locking cylinder cover (2) away from the limiting bracket (5) is provided with an end plate (202), and a hanging curtain (203) is arranged at the bottom of the end plate (202); a plurality of groups of partition plates (204) are arranged on the top wall inside the temperature-locking cylinder cover (2), and ventilation arc frames (205) are arranged on the surfaces of the partition plates (204) and the end plates (202).

8. A control method for an efficient steel plate cutting device, used for the efficient steel plate cutting device according to any one of claims 1 to 7, characterized in that: The following steps are included S1: The connecting bracket (1) and the auxiliary bracket (101) are respectively connected to external production line conveying equipment, and the steel plate to be processed is conveyed by the external production conveying equipment to the conveying bracket (104) on the connecting bracket (1); S2: The active cylinder (108) on the connecting bracket (1) drives the limiting pressure frame (6) to move closer to the steel through the lifting cylinder frame (604), and the lifting cylinder frame (604) drives the entire limiting pressure frame (6) to slide down until the limiting pressure frame (6) is attached to the upper surface of the steel, and the downward pressure cylinder (603) drives the extrusion plate (606) to slide down, further limiting the steel plate between the limiting pressure frame (6) and the conveying roller, and the heater (605) performs preheating treatment on the top of the area to be cut of the steel plate in advance; The inner push cylinder (105) on the connecting bracket (1) drives the follower support plate (106) and the limit pressure frame (6) to move synchronously, and the heater (107) on the follower support plate (106) preheats the bottom of the area to be cut of the steel plate in advance; S3: The lifting cylinder drives the movable plate (502) to slide upward to lift the area of ​​the steel plate to be cut. The limit pressing frame (6) and the temperature recovery pushing frame (7) are driven by the active cylinders (108) on the connecting bracket (1) and the auxiliary frame (101) respectively. The downward pressing cylinder (603) drives the extrusion plate (606) to slide downward to squeeze one end of the steel plate. The limit cylinder (701) drives the movable sealing plate (702) to slide downward to squeeze and limit the other end of the steel plate. S4: The lifting cylinder (306) drives the cutting motor (308) to slide axially upward until the cutting blade (307) steadily contacts the steel plate, and the driven base (305) drives the cutting motor (308) to slide axially along the skeleton of the supporting keel (304), so that the cutting blade (307) performs directional reciprocating cutting processing on the cutting area of ​​the steel plate, and the air pump (309) is connected to the suction frame (303), the air jet (705) and the ventilation arc frame (205) through pipelines, and the suction frame (303) forms a negative pressure exhaust environment in the area below the cutting blade (307); S5: The limiting pressure rack (6) and the temperature recovery push rack (7) simultaneously release the restrictions on the steel plate, and the pressure roller (602) and the conveying roller operate synchronously, so that the cut steel plate is further moved and pushed toward one end of the temperature recovery push rack (7). The limiting cylinder (701) drives the movable sealing plate (702) to slide down, covering the steel plate cutting area. The secondary high-temperature air extracted by the jet frame guide suction port and the suction frame (303) is injected between the guide plate (704), and enters the secondary high-temperature airflow between the bottom of the steel plate and the conveying roller and the adapter bracket (706). It is blocked by the adapter bracket, and most of it flows back to the limiting bracket (5) area. The adapter bracket (706) is driven by the inner push cylinder (105) on the sub-frame (101), and it maintains synchronous axial movement with the temperature recovery push rack (7); S6: When the limiting pressure frame (6) and the temperature recovery push frame (7) release the limiting cutting process on the steel plate, the residual heat inside the limiting pressure frame (6) dissipates and flows upward, and part of the high-temperature air generated by the cutting flows upward synchronously and gathers in the top inner wall area of ​​the two groups of temperature-locking cylinder covers (2). Affected by the partition plate (204), the gathered secondary high-temperature airflow flows step by step to the two ends of the temperature-locking cylinder covers (2). Affected by the suction port and the nozzle, under the circulation extraction action of the air pump (309), it is continuously sprayed by the jet frame, forming a heat cycle inside the temperature-locking cylinder cover (2), thereby reducing heat overflow loss.

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