Flame cutting preheating device for large-size thick steel plate machining

Abstract

The utility model belongs to the field of large-size thick steel plate machining equipment, and provides a flame cutting preheating device for large-size thick steel plate machining, which comprises a cutting emptying frame, the cutting emptying frame comprises a side coaming, a middle plate and a plurality of supporting plates, two rows of preheating areas are arranged on two sides of the middle plate, preheating induction coils are arranged in the preheating areas, and the supporting plates are arranged on the side coaming. A heating iron core of a quadrangular prism structure is arranged on the inner sides of the preheating induction coils, a heat dissipation device is arranged at the bottom of the heating iron core, and two rows of control cabinets connected with the preheating induction coils in a one-to-one correspondence mode are arranged on the two sides of the cutting discharging frame. The preheating induction coil provided by the utility model is controlled by the control cabinet, the preheating induction coil performs induction heating on the heating iron cores, and the heating iron cores conduct heat to the material, so that the corresponding positions on the steel plate material are heated, and the heating iron cores at different positions can perform segmented heating under the control of the control cabinet; therefore, the preheating requirement of flame cutting equipment on a cutting track is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to large -size thick steel sheet processing equipment field especially relates to a large -size thick steel sheet processing is with flame cutting preheating device. BACKGROUND

[0002] Large -size thick steel plate is one of the main materials in heavy machinery production and manufacturing workshop. Because the shape of large -size thick steel plate material is whole board, usually need to adopt flame cutting mode to cut it into the blank that accords with corresponding part.

[0003] The existing patent CN209632264U discloses a kind of preheating system before realizing the synchronous of flame cutting area, preheating area of medium-thick high-strength material steel plate numerical control flame cutting, including gas premixing control cabinet and preheating unit, gas premixing control cabinet is equipped with gas mixing gun, the gas outlet of gas mixing gun is connected preheating unit by main pipeline, preheating unit includes with the premixed gas gas bag of main pipeline connection, there is a group of gas outlets on premixed gas gas bag, the group of gas outlets is respectively connected with shunt pipeline, the other end of shunt pipeline is respectively connected with combustion exhaust pipe, combustion exhaust pipe is installed on cutting material rack, combustion exhaust pipe is installed with combustion nozzle, both ends of combustion exhaust pipe are installed on the side wall of cutting material rack by bearing with seat, combustion exhaust pipe and shunt pipeline are connected by quick connector, the end of combustion exhaust pipe is connected with rotary wrench, to rotate combustion exhaust pipe, prevent cutting material from blocking combustion nozzle.The preheating system is preheated in the mode of fuel gas, needs to consume a lot of fuel gas, and also can produce some waste gas and air current, and can cause certain influence to workshop's production and processing environment.

[0004] The existing patent CN118635620A discloses steel plate cutting device and its steel plate cutting method, including base, preheating mechanism, processing mechanism, cooling mechanism and feeding mechanism are arranged on the base, preheating induction coil is installed at the rear end of feeding mechanism. Among them, preheating induction coil carries out induction heating to the steel plate that passes through its inner side, this induction heating mode has heating block, and does not produce the advantage of waste gas, but for preheating large -size thick steel plate, the volume of large -size thick steel plate is large, and cutting track has regular and irregular, this mobile heating mode cannot satisfy the preheating area requirement of cutting site. UTILITY MODEL CONTENTS

[0005] The utility model discloses in view of the technical problem of above-mentioned flame cutting preheating system, propose a kind of design reasonable, environmental protection, preheating efficiency is higher and can realize the preheating of a kind of large -size thick steel plate processing is with flame cutting preheating device in different areas.

[0006] In order to achieve the above object, the utility model adopts the technical scheme, the utility model provides a kind of flame cutting preheating device for large size thick steel plate processing, including cutting material rack, the cutting material rack includes side wall, the inside middle of side wall is provided with middle plate, multiple support plates are provided between the middle plate and side wall, preheating zone is formed between front and back adjacent support plates, the two sides of middle plate are divided into two rows of preheating zones, preheating induction coil is provided in the preheating zone, the preheating induction coil extends up and down on rectangular spiral track, the inside of preheating induction coil is provided with the heating iron core of four prism structure, the top of heating iron core is used to contact workpiece and heat transfer to workpiece, the bottom of heating iron core is provided with heat dissipation device, the both sides of cutting material rack are provided with two rows of control cabinet corresponding to preheating induction coil one by one.

[0007] As preferred, the length of the heating iron core is greater than 1 / 2 length of the preheating zone, and the width of the heating iron core is greater than 1 / 2 width of the preheating zone.

[0008] As preferred, the heat dissipation device includes a sand box, the top of the sand box is provided with an open, and the inside of the sand box is provided with filled sand.

[0009] As preferred, the bottom of the sand box is provided with casters.

[0010] Compared with the prior art, the utility model has the advantages and positive effects that:

[0011] 1. The flame cutting preheating device for large size thick steel plate processing provided by the utility model is controlled by the control cabinet, the preheating induction coil inductively heats the heating iron core, and the heating iron core conducts heat to the material, so as to heat the corresponding position on the steel plate material, and the heating iron cores at different positions can be heated in sections under the control of the control cabinet to meet the preheating requirements of the flame cutting equipment on the cutting track. The device is reasonable in design, environmentally friendly, high in preheating efficiency, and can realize regional preheating, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0013] Figure 1 It is a plan view of a kind of flame cutting preheating device (without control cabinet) for large size thick steel plate processing;

[0014] Figure 2A front view of a flame cutting preheating device for processing large-size thick steel plates;

[0015] Figure 3 An isometric view of the preheating induction coil provided in the embodiment;

[0016] In the above figures, 1. Cutting and feeding rack; 11. Side panel; 12. Middle plate; 13. Support plate; 2. Preheating zone; 3. Preheating induction coil; 4. Heating core; 5. Heat dissipation device; 51. Sand box; 52. Opening; 53. Filling sand; 6. Control cabinet. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Examples, such as Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a flame cutting preheating device for processing large-size thick steel plates, including a cutting and feeding rack 1. The cutting and feeding rack 1 includes a side panel 11. A middle plate 12 is provided in the middle of the inner side of the side panel 11. Multiple support plates 13 are provided between the middle plate 12 and the side panel 11. The front and rear adjacent support plates 13 form a preheating zone 2. The middle plate 12 is divided into two rows of preheating zones 2 on both sides. A preheating induction coil 3 is provided in the preheating zone 2. The preheating induction coil 3 extends up and down in a rectangular spiral trajectory. A heating iron core 4 with a quadrangular prism structure is provided inside the preheating induction coil 3. The top of the heating iron core 4 is used to contact the workpiece and transfer heat to the workpiece. A heat dissipation device 5 is provided at the bottom of the heating iron core 4. Two rows of control cabinets 6 are provided on both sides of the cutting and feeding rack 1, which are connected one-to-one with the preheating induction coils 3.

[0020] Specifically, the arrangement density of the support plate 13 on the cutting material rack 1 is smaller than that in the prior art, thereby providing a certain number of preheating zones 2, and the support of the steel plate material is compensated by the heating core 4; meanwhile, the preheating induction coil 3 is controlled by the control cabinet 6, the preheating induction coil 3 obtains current from the control cabinet 6, the heating core 4 and the preheating induction coil 3 realize induction heating in a non-contact manner, the heating core 4 conducts heat to the material, and the heat conduction range at least includes the steel plate part involved in the preheating zone 2 where the heating core 4 is located, so as to heat the corresponding position on the steel plate material, and the heating cores 4 at different positions can be heated in sections under the control of the control cabinet 6 to meet the preheating requirement of the flame cutting equipment on the cutting track, and the preheating means can not be used for positions that do not need preheating. The heat dissipation device 5 can dissipate heat of the heating core 4 after stopping induction heating, so as to avoid excessive heat conduction to other parts of the steel plate material and increase subsequent cooling work. The device does not produce other waste gas emissions, has the characteristics of environmental protection, has high preheating efficiency and can realize regional preheating, has high practicability and utilization rate.

[0021] In order to improve the heating effect of the heating core 4 on the steel plate in the range of the preheating zone 2, the length of the heating core 4 is greater than the length of the preheating zone 1 / 2, and the width of the heating core 4 is greater than the width of the preheating zone 1 / 2. By designing the heating core 4 with reasonable size, the steel plate material can have sufficient heating conditions, and the heating core 4 can shorten the necessary time for heat conduction to the steel plate material at the position while realizing induction heating, thereby improving the actual induction heating efficiency and preheating effect.

[0022] In order to improve the practicability of the heat dissipation device 5, the heat dissipation device 5 comprises a sand box 51, the top of the sand box 51 is provided with an opening 52, and the inside of the sand box 51 is provided with filled sand 53. The sand boxes 51 of adjacent preheating zones 2 can be designed in series or independently. The length and width of the sand box 51 are greater than the length and width of the heating core 4, and the filled sand 53 in the sand box 51 can effectively support the heating core 4, provide sufficient support surface and heat dissipation surface for the core, and the heat dissipation device 5 has simple structure, low cost and high practicability.

[0023] Further, the bottom of the sand box 51 is provided with a foot wheel. The foot wheel can provide the sand box 51 with the moving ability, and facilitate taking the sand box 51 out from below the cutting material rack 1.

[0024] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A preheating device for a flame cutting of a large-sized thick steel plate, comprising a cutting stock rack, characterized in that, The cutting material rack comprises side walls, an intermediate plate is arranged in the middle of the inner side of the side walls, a plurality of support plates are arranged between the intermediate plate and the side walls, a preheating area is formed between the front and rear adjacent support plates, the two sides of the intermediate plate are divided into two rows of preheating areas, a preheating induction coil is arranged in the preheating area, the preheating induction coil extends up and down in a rectangular spiral track, a heating iron core with a quadrangular prism structure is arranged on the inner side of the preheating induction coil, the top of the heating iron core is used to contact and heat the workpiece, a heat dissipation device is arranged at the bottom of the heating iron core, and two rows of control cabinets corresponding to the preheating induction coils are arranged on the two sides of the cutting material rack.

2. The preheating device for a large-sized thick steel plate according to claim 1, characterized in that, The length of the heating iron core is greater than 1 / 2 of the length of the preheating area, and the width of the heating iron core is greater than 1 / 2 of the width of the preheating area.

3. The preheating device for a large-sized thick steel plate according to claim 2, characterized in that The heat dissipation device comprises a sand box, an open top of the sand box, and a sand filling inside the sand box.

4. The preheating device for a large-sized thick steel plate according to claim 3, characterized in that A foot wheel is arranged at the bottom of the sand box.

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