A preheating furnace for high-strength plate welding

Abstract

The present invention discloses a high-strength plate pre-welding preheating furnace, comprising a furnace body, a bracket, a first conveyor belt, a second conveyor belt, a grinding mechanism, a transmission mechanism, an ash accumulation mechanism, a motor and a supporting foot. The furnace body is fixedly installed at the inner center position of the bracket, the first conveyor belt is installed inside the bracket, the second conveyor belt is installed at the inner rear end of the bracket, the grinding mechanism is fixedly installed on the outer surface of the front end of the furnace body near the upper end, the ash accumulation mechanism is movably installed at the inner front end of the grinding mechanism, the transmission mechanism runs through the inside of the bracket and the grinding mechanism, and the motor is fixedly installed on the outer surface of one side of the bracket near the front end; by arranging the grinding mechanism at the upper end of the first conveyor belt, when the high-strength plate passes through the inside of the grinding mechanism, the upper outer surface of the high-strength plate is automatically ground, and the material plate enters the furnace body by opening the sliding door, and the opening of the sliding door allows the gas to be ejected from the air jet at the sliding door to prevent grinding waste from entering the furnace body.

Description

Technical Field

[0001] The invention relates to the technical field of preheating furnaces, in particular to a preheating furnace before high-strength plate welding. Background Art

[0002] High-strength plates have good high-temperature oxidation resistance, stable structure, and high high-temperature strength. However, they have poor weldability and a strong tendency to harden. During the welding process, the weld and heat-affected zone are prone to hard and brittle hardened structures, forming arc crater-like cracks, and "hydrogen embrittlement" is also prone to occur. In order to avoid and eliminate the above defects and ensure product quality, high-strength plates and alloy steel components must be preheated before welding.

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art that have not been solved: 1. Impurities are generated in the production process of high-strength plates used for industrial welding. Due to long-term accumulation on the surface, impurities such as rust stains will be generated on the welding surface. Impurities such as rust stains will cause cracks in the weld. The traditional preheating furnace does not have a grinding device, and a special process needs to be set up to grind the welding surface, which reduces production efficiency; 2. After the traditional preheating furnace is completed, the operator needs to open the preheating furnace and take out the high-strength plate. Due to the high temperature inside the preheating furnace, it is very dangerous for the operator. If a large number of detection and control mechanisms are added, the cost of the preheating furnace will be too high, which is not suitable for low-cost production workshops. Summary of the invention

[0004] The object of the present invention is to provide a preheating furnace for high-strength plates before welding. By arranging a grinding mechanism at the upper end of the first conveyor belt, the outer surface of the upper end of the high-strength plate is automatically ground when the high-strength plate passes through the inside of the grinding mechanism. The sliding door is opened to allow the material plate to enter the furnace body. The opening of the sliding door allows the gas to be ejected from the air jet at the sliding door to prevent grinding waste from entering the furnace body, so as to solve the problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a high-strength plate pre-welding preheating furnace described in the present invention comprises a furnace body, a bracket, a first conveyor belt, a second conveyor belt, a grinding mechanism, a transmission mechanism, an ash accumulation mechanism, a motor and a supporting foot, wherein the furnace body is fixedly installed at the inner center position of the bracket, the first conveyor belt is installed inside the bracket, the second conveyor belt is installed at the inner rear end of the bracket, the grinding mechanism is fixedly installed on the outer surface of the front end of the furnace body near the upper end, the ash accumulation mechanism is movably installed on the inner front end of the grinding mechanism, the transmission mechanism runs through the inside of the bracket and the grinding mechanism, and the motor is fixedly installed on the outer surface of one side of the bracket near the front end;

[0006] The grinding mechanism comprises: a guide rod, a transmission gear, a grinding wheel, a grinding housing, a sliding sleeve and a grinding wheel shaft; the top of the grinding housing is slidably connected to the guide rod through the sliding sleeve, two guide rods are provided, the bottom ends of the two guide rods are rotatably connected to the grinding wheel shaft through bearings, a grinding wheel and a transmission gear are fixedly mounted on the grinding wheel shaft, two transmission gears are provided, and the two transmission gears are respectively located near the inner wall of the grinding housing;

[0007] The first conveyor belt includes two transmission pulleys, a side drive gear, a feeding belt, a material tray positioning spike and a material tray; the feeding belt is installed on the outer side of the two transmission pulleys, the motor drives one of the two transmission pulleys close to the front end through a rotating shaft, and the other transmission pulley is connected to the side drive gear through a rotating shaft, and a material tray positioning spike is provided on the outer side of the feeding belt, and the material tray positioning spike positions the material tray through a groove corresponding to the bottom end of the material tray.

[0008] The transmission mechanism includes: a transmission belt and a transmission belt positioning gear; the transmission belt positioning gears are rotatably connected to the inner sides of the grinding shell through a rotating shaft, and a transmission belt is arranged on the outer sides of the transmission belt positioning gear and the side driving gear, and the transmission gear is located inside the transmission belt.

[0009] The dust accumulation mechanism comprises: a dust accumulation box, a dust accumulation box connecting rod and an extrusion wheel; one side of the guide rod is fixedly connected to the dust accumulation box connecting rod, the bottom end of the dust accumulation box connecting rod is connected to the dust accumulation box, and the bottom end of the dust accumulation box is rotatably mounted with an extrusion wheel through a mounting frame;

[0010] The furnace body includes: a cylindrical elastic air bag, a front side panel slide groove, a sliding door, a sliding door connecting rod and an air jet. The front side of the furnace body is provided with a furnace body front side panel, and the furnace body front side panel is connected to one side of a grinding shell. One side of the furnace body front side panel is provided with a front side panel slide groove, and the inner side of the front side panel slide groove is provided with a cylindrical elastic air bag. The bottom end of the guide rod is connected to the sliding door connecting rod through a bearing, and the bottom end of the sliding door connecting rod is fixedly connected to the sliding door. The top end of the cylindrical elastic air bag is connected to the air jet through an elastic air pipe, and the air jet is located on the side of the sliding door close to the grinding shell, and the bottom ends of the sliding door, grinding wheel and extrusion wheel are flush.

[0011] The furnace body also includes: a heating cavity, a heating shaft and a heating wheel. The furnace body is provided with a heating cavity inside, the heating cavity is rotatably connected to the heating shaft inside, a heating wheel is arranged on the outside of the heating shaft, and a discharge door is rotatably connected to one side of the furnace body.

[0012] A handle is fixedly installed at the center of the front outer surface of the dust storage box, and the dust storage box is a U-shaped structure;

[0013] Support feet are arranged at four corners of the outer surface of the lower end of the bracket.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention supports the high-strength plate to enter the interior of the grinding mechanism through the material tray moving toward the rear end, and the front end of the material tray moves to the lower end of the extrusion wheel and squeezes it to move upward, and the extrusion wheel, the ash box and the ash box connecting rod structure move upward as a whole, and drive the guide rod to move upward, and the guide rod drives the transmission gear to move upward, and the transmission gear moves a short distance upward and contacts the transmission belt, and the transmission belt has a certain elasticity, and the transmission gear contacts the transmission belt, and the transmission belt drives the transmission gear to rotate, and the transmission gear drives the grinding wheel to rotate, and when the material tray supports the high-strength plate to move to the bottom end of the grinding wheel, the high-strength plate can be initially ground at a low speed; the present invention does not need to set a sensor detection control mechanism, and through a simple setting, when the material tray supports the high-strength plate and moves to a position close to the grinding wheel, the grinding wheel starts to grind and rotate, and the grinding wheel grinds the high-strength plate at a low speed.

[0016] 2. The present invention drives the sliding door connecting rod and the sliding door upward while the guide rod moves upward. The sliding door connecting rod squeezes the cylindrical elastic airbag. After being squeezed, the cylindrical elastic airbag squeezes the internal air into the air jet through the flexible air pipe. The gas ejected from the air jet can make the grinding waste better enter the ash storage box. At the same time, the bottom end of the sliding door in the initial position is flush with the bottom end of the material tray. The upward movement of the sliding door can move the height of the material tray upward, which is convenient for the material tray to support the high-strength plate to enter the furnace body for subsequent heating treatment; the material tray of the present invention supports the high-strength plate to move to the grinding wheel for grinding, and the sliding door is opened at the same time to facilitate the entry of the material plate. The opening of the sliding door allows the air jet at the sliding door to eject gas to prevent grinding waste from entering the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 is a cross-sectional view of the present invention;

[0019] Figure 3 is a cross-sectional view of the grinding mechanism of the present invention;

[0020] Figure 4 It is the internal structure diagram of the transmission mechanism of the present invention;

[0021] In the figure: 1. furnace body; 10. heating cavity; 11. heating shaft; 12. cylindrical elastic airbag; 13. front side plate slide; 14. sliding door; 15. sliding door connecting rod; 16. front side plate of furnace body; 161 jet outlet; 17. heating wheel; 2. bracket; 3. first conveyor belt; 31. transmission pulley; 32. side drive gear; 33. feeding belt; 34. tray positioning thorn; 35. tray; 4. second conveyor belt; 5. grinding mechanism; 51. guide rod; 52. transmission gear; 53. grinding wheel; 54. grinding shell; 55. sliding sleeve; 56. grinding wheel shaft; 6. transmission mechanism; 61. transmission belt; 62. transmission belt positioning gear; 7. dust accumulation mechanism; 71. dust box; 72. dust box connecting rod; 73. extrusion wheel; 74. handle; 8. motor; 9. supporting foot. DETAILED DESCRIPTION

[0022] use Figure 1-Figure 4 A high-strength plate preheating furnace before welding according to one embodiment of the present invention is described as follows.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a high-strength plate pre-welding preheating furnace described in the present invention is characterized in that it includes a furnace body 1, a bracket 2, a first conveyor belt 3, a second conveyor belt 4, a grinding mechanism 5, a transmission mechanism 6, an ash accumulation mechanism 7, a motor 8 and a supporting foot 9, wherein the furnace body 1 is fixedly installed at the inner center position of the bracket 2, the first conveyor belt 3 is installed inside the bracket 2, the second conveyor belt 4 is installed at the inner rear end of the bracket 2, the grinding mechanism 5 is fixedly installed on the front end outer surface of the furnace body 1 near the upper end position, the ash accumulation mechanism 7 is movably installed on the inner front end of the grinding mechanism 5, the transmission mechanism 6 runs through the bracket 2 and the grinding mechanism 5, and the motor 8 is fixedly installed on the outer surface of one side of the bracket 2 near the front end position;

[0024] The grinding mechanism 5 comprises: a guide rod 51, a transmission gear 52, a grinding wheel 53, a grinding housing 54, a sliding sleeve 55 and a grinding wheel shaft 56; the top of the grinding housing 54 is slidably connected to the guide rod 51 through the sliding sleeve 55, two guide rods 51 are provided, and the bottom ends of the two guide rods 51 are rotatably connected to the grinding wheel shaft 56 through bearings, and the grinding wheel shaft 56 is fixedly mounted with a grinding wheel 53 and a transmission gear 52, and two transmission gears 52 are provided, and the two transmission gears 52 are respectively located near the inner wall of the grinding housing 54;

[0025] The first conveyor belt 3 includes two transmission pulleys 31, a side drive gear 32, a feeding belt 33, a material tray positioning spike 34 and a material tray 35; the feeding belt 33 is installed on the outer side of the two transmission pulleys 31, the motor 8 drives one of the two transmission pulleys 31 close to the front end through a rotating shaft, and the other transmission pulley 31 is connected to the side drive gear 32 through a rotating shaft, and the outer side of the feeding belt 33 is provided with a material tray positioning spike 34, and the material tray positioning spike 34 positions the material tray 35 through the groove corresponding to the bottom end of the material tray 35.

[0026] Preferably, the transmission mechanism 6 includes: a transmission belt 61 and a transmission belt positioning gear 62; the transmission belt positioning gear 62 is rotatably connected to the inner sides of the grinding shell 54 through a rotating shaft, and a transmission belt 61 is arranged on the outer side of the transmission belt positioning gear 62 and the side driving gear 32, and the transmission gear 52 is located inside the transmission belt 61.

[0027] Preferably, the dust accumulation mechanism 7 comprises: a dust accumulation box 71, a dust accumulation box connecting rod 72 and an extrusion wheel 73; one side of the guide rod 51 is fixedly connected with the dust accumulation box connecting rod 72, the bottom end of the dust accumulation box connecting rod 72 is connected with the dust accumulation box 71, and the bottom end of the dust accumulation box 71 is rotatably mounted with the extrusion wheel 73 through a mounting frame;

[0028] Preferably, the furnace body 1 includes: a cylindrical elastic air bag 12, a front side panel slide groove 13, a sliding door 14, a sliding door connecting rod 15 and an air jet 161. The front side of the furnace body 1 is provided with a furnace body front side panel 16, and the furnace body front side panel 16 is connected to one side of the grinding shell 54. A front side panel slide groove 13 is opened on one side of the furnace body front side panel 16, and a cylindrical elastic air bag 12 is arranged on the inner side of the front side panel slide groove 13. The bottom end of the guide rod 51 is connected to the sliding door connecting rod 15 through a bearing, and the bottom end of the sliding door connecting rod 15 is fixedly connected to the sliding door 14. The top end of the cylindrical elastic air bag 12 is connected to the air jet 161 through an elastic air pipe. The air jet 161 is located on the side of the sliding door 14 close to the grinding shell 54, and the bottom ends of the sliding door 14, the grinding wheel 53 and the extrusion wheel 73 are flush.

[0029] Preferably, the furnace body 1 also includes: a heating cavity 10, a heating shaft 11 and a heating wheel 17. The furnace body 1 has a heating cavity 10 opened inside, the heating cavity 10 is rotatably connected to the inside of the heating shaft 11, a heating wheel 17 is arranged on the outside of the heating shaft 11, and a discharge door is rotatably connected to one side of the furnace body 1.

[0030] Preferably, a handle 74 is fixedly mounted at the center of the front outer surface of the dust storage box 71, and the dust storage box 71 is a U-shaped structure;

[0031] Preferably, support feet 9 are provided at four corners of the outer surface of the lower end of the bracket 2 .

[0032] The specific workflow is as follows:

[0033] During operation, the operator connects the motor 8 of model Y180M-2 to the power supply, and the power shaft of the motor 8 drives the transmission shaft 31 at the front end of the first conveyor belt 3 to rotate, thereby driving the first conveyor belt 3 to rotate. The operator places the high-strength plate in the placement groove of the material tray 35, and the material tray 35 is placed on the feeding belt 33 and inserted into the corresponding material tray positioning thorn 34. The motor 8 is used to drive the first conveyor belt 3 to rotate clockwise, and the first conveyor belt 3 drives the material tray 35 to move toward the rear end, and the material tray moving toward the rear end The high-strength plate 35 is supported to enter the interior of the grinding mechanism 5, and the front end of the material tray 35 moves to the lower end of the extrusion wheel 73 and squeezes it to move upward. The extrusion wheel 73, the dust box 71 and the dust box connecting rod 72 structure move upward as a whole, and drive the guide rod 51 to move upward. The guide rod 51 drives the transmission gear 52 to move upward. The transmission gear 52 moves upward for a short distance and contacts the transmission belt 61. The transmission belt 61 has a certain elasticity. The transmission gear 52 contacts the transmission belt 61, and the transmission belt 61 drives the transmission gear 52 to rotate The transmission gear 52 drives the grinding wheel 53 to rotate, and the material tray 35 supports the high-strength plate and moves to the bottom of the grinding wheel 53, so that the high-strength plate can be initially ground at a low speed; at the same time, the guide rod 51 moves upward and drives the sliding door connecting rod 15 and the sliding door 14 to move upward, and the sliding door connecting rod 15 squeezes the cylindrical elastic airbag 12. After being squeezed, the cylindrical elastic airbag 12 squeezes the air inside into the air jet 161 through the flexible air pipe. The gas ejected from the air jet 161 can make the grinding waste chips better enter the dust storage box 71, and at the same time The bottom end of the sliding door 14 in the initial position is flush with the bottom end of the material tray 35. The sliding door 14 can move the height of the material tray 35 upward, so that the material tray 35 can support the high-strength board to enter the furnace body 1 for subsequent heating treatment; when the high-strength board completely enters the furnace body 1, the sliding door 14 is closed; when the resistance wire is connected to the power supply, it will generate heat to make the heating shaft 11 heat up, and the heating wheel 17 heats the high-strength board. At the same time, the external motor drives the heating wheel 17 to rotate so that the material tray 35 supports the high-strength board to move out of the furnace body 1 and discharge the material through the second conveyor belt 4.

[0034] The electrical components appearing in this article are all connected to the external main controller and 220V AC power through a transformer, and the main controller can be a conventional known device that controls a computer, etc. The product model provided by the present invention is only used for the technical solution according to the structural characteristics of the product. The product will be adjusted and modified after purchase to make it more matching and consistent with the technical solution of the present invention. It is a technical solution for the best application of the technical solution. The model of its product can be replaced and modified according to the required technical parameters, which is well known to technical personnel in this field. Therefore, technical personnel in this field can clearly obtain the corresponding use effect through the technical solution provided by the present invention.

[0035] In the description of the present invention, it is necessary to understand that the terms "center", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0036] Although the present invention is described by specific embodiments, it should be understood by those skilled in the art that various changes and equivalent substitutions may be made to the present invention without departing from the scope of the present invention. In addition, various modifications may be made to the present invention for specific situations or materials without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed, but should include all implementation methods falling within the scope of the claims of the present invention.

Claims

1. A high-strength plate preheating furnace before welding, characterized in that: The invention comprises a furnace body (1), a bracket (2), a first conveyor belt (3), a second conveyor belt (4), a grinding mechanism (5), a transmission mechanism (6), an ash accumulation mechanism (7), a motor (8) and a supporting foot (9), wherein the furnace body (1) is fixedly mounted at the inner center position of the bracket (2), the first conveyor belt (3) is mounted inside the bracket (2), the second conveyor belt (4) is mounted at the inner rear end of the bracket (2), the grinding mechanism (5) is fixedly mounted on the front end outer surface of the furnace body (1) near the upper end position, the ash accumulation mechanism (7) is movably mounted on the inner front end of the grinding mechanism (5), the transmission mechanism (6) runs through the bracket (2) and the grinding mechanism (5), and the motor (8) is fixedly mounted on the outer surface of one side of the bracket (2) near the front end position; The grinding mechanism (5) comprises: a guide rod (51), a transmission gear (52), a grinding wheel (53), a grinding housing (54), a sliding sleeve (55) and a grinding wheel shaft (56); the top end of the grinding housing (54) is slidably connected to the guide rod (51) via the sliding sleeve (55); two guide rods (51) are provided, and the bottom ends of the two guide rods (51) are rotatably connected to the grinding wheel shaft (56) via bearings; the grinding wheel shaft (56) is fixedly mounted with a grinding wheel (53) and a transmission gear (52); two transmission gears (52) are provided, and the two transmission gears (52) are respectively located near the inner wall of the grinding housing (54); The first conveyor belt (3) comprises two transmission pulleys (31), a side drive gear (32), a feeding belt (33), a material tray positioning thorn (34) and a material tray (35); the feeding belt (33) is installed on the outer side of the two transmission pulleys (31); the motor (8) drives one of the two transmission pulleys (31) close to the front end through a rotating shaft; the other transmission pulley (31) is connected to the side drive gear (32) through a rotating shaft; the outer side of the feeding belt (33) is provided with a material tray positioning thorn (34); the material tray positioning thorn (34) positions the material tray (35) through a groove corresponding to the bottom end of the material tray (35); The transmission mechanism (6) comprises: a transmission belt (61) and a transmission belt positioning gear (62); the transmission belt positioning gears (62) are rotatably connected to the two sides of the interior of the grinding housing (54) via a rotating shaft, a transmission belt (61) is arranged on the outside of the transmission belt positioning gear (62) and the side driving gear (32), and the transmission gear (52) is located inside the transmission belt (61); The dust accumulation mechanism (7) comprises: a dust accumulation box (71), a dust accumulation box connecting rod (72) and an extrusion wheel (73); one side of the guide rod (51) is fixedly connected to the dust accumulation box connecting rod (72), the bottom end of the dust accumulation box connecting rod (72) is connected to the dust accumulation box (71), and the bottom end of the dust accumulation box (71) is rotatably mounted with the extrusion wheel (73) via a mounting frame; The furnace body (1) comprises: a cylindrical elastic airbag (12), a front side plate slide groove (13), a sliding door (14), a sliding door connecting rod (15) and an air jet (161); a furnace body front side plate (16) is arranged on the front side of the furnace body (1); the furnace body front side plate (16) is connected to one side of a grinding shell (54); a front side plate slide groove (13) is provided on one side of the furnace body front side plate (16); a cylindrical elastic airbag (12) is provided on the inner side of the front side plate slide groove (13); The bottom end of the guide rod (51) is connected to a sliding door connecting rod (15) through a bearing, and the bottom end of the sliding door connecting rod (15) is fixedly connected to a sliding door (14). The top end of the cylindrical elastic air bag (12) is connected to an air jet (161) through an elastic air pipe, and the air jet (161) is located on a side of the sliding door (14) close to the grinding shell (54). The bottom ends of the sliding door (14), the grinding wheel (53) and the extrusion wheel (73) are flush. The furnace body (1) further comprises: a heating cavity (10), a heating shaft (11) and a heating wheel (17); the furnace body (1) is provided with a heating cavity (10) inside, the heating cavity (10) is rotatably connected to the heating shaft (11), the heating wheel (17) is arranged on the outside of the heating shaft (11), and a discharge door is rotatably connected to one side of the furnace body (1).

2. The high-strength plate preheating furnace before welding according to claim 1, characterized in that: A handle (74) is fixedly mounted at the center of the front outer surface of the dust storage box (71), and the dust storage box (71) is a U-shaped structure.

3. The high-strength plate preheating furnace before welding according to claim 1, characterized in that: Support feet (9) are provided at four corners of the outer surface of the lower end of the bracket (2).

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