Forging stock preheating equipment

Abstract

The invention relates to the technical field of metal forging preheating, in particular to forging stock preheating equipment which comprises a furnace body, a platen is installed on the inner side of the furnace body, a heat preservation brick layer is arranged on the inner wall of the furnace body, a plurality of curved surface blocks are fixedly connected to the upper surface of the platen, and a top plate is fixedly installed on the upper surface of the furnace body. A fixed rotating wheel and a movable rotating wheel are rotationally embedded in the outer surface of the top plate, the lower edges of the fixed rotating wheel and the movable rotating wheel movably penetrate through the upper surface of the heat preservation brick layer, a rotating shaft fixedly penetrates through a middle shaft of the fixed rotating wheel, and the rotating shaft and the movable rotating wheel are in sliding fit in the transverse direction; under the condition that the furnace is not opened, all positions of the block-shaped materials can be fully heated, and preheating is more comprehensive; the heat loss in preheating can be effectively reduced, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metal forging preheating, and in particular to a forging blank preheating device. Background Art

[0002] Flange forging technology is an important metal processing method, which is mainly used to manufacture various types of flanges, which play a vital connecting role in pipelines, valves and other equipment.

[0003] In the forging of large flanges, the forging block is preheated in a preheating furnace and then placed on a forging machine for forging. The blank is gradually forged into the desired flange shape through processes such as upsetting, punching, and bending.

[0004] Forging blanks are block-shaped alloy metal raw materials. As forging blanks, metal blocks usually have good plasticity and ductility. During the forging process, the metal blocks can be plastically deformed under the action of external forces, so that they can be processed into the required shape and size. Forging is usually carried out at high temperatures. The metal blocks can maintain high strength and toughness, and are not prone to brittle fracture during the heating process, which is conducive to the smooth progress of forging. In addition, the composition of the metal blocks is relatively uniform during the casting or rolling process, which is conducive to obtaining forgings with stable performance after forging.

[0005] In the prior art, when heating in the preheating furnace, the material taking machine needs to be turned over several times to ensure that the block material is heated evenly, which is quite inconvenient. In addition, repeated opening and closing of the furnace body also causes heat loss and increases energy consumption costs. Therefore, we propose a forging preheating device. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a forging preheating device.

[0007] To achieve the above purpose, the technical scheme adopted by the present invention is: a forging preheating device, including a furnace body, a table plate is installed on the inner side of the furnace body, an insulation brick layer is arranged on the inner wall of the furnace body, a plurality of curved blocks are fixedly connected to the upper surface of the table plate, a top plate is fixedly installed on the upper surface of the furnace body, a fixed rotating wheel and a moving rotating wheel are rotatably embedded on the outer surface of the top plate, the lower sides of the fixed rotating wheel and the moving rotating wheel movably pass through the upper surface of the insulation brick layer, a rotating shaft is fixedly passed through the middle axis of the fixed rotating wheel, the rotating shaft and the moving rotating wheel are slidably matched in the transverse direction, a fixed clamping plate is fixedly passed through the inner side of the fixed rotating wheel, a moving clamping plate is fixedly passed through the inner side of the moving rotating wheel, a T-shaped column is movably arranged at the lower end of the adjacent side of the fixed clamping plate and the moving clamping plate, a telescopic mechanism is commonly arranged at the upper ends of the fixed clamping plate and the moving clamping plate, and a steering mechanism is arranged at the side of the fixed rotating wheel away from the moving rotating wheel; The corner of the block material extends into between two adjacent curved blocks, and when the T-shaped columns on both sides clamp the block material and drag it backward, the block material rolls relatively on the surface of the curved block.

[0008] Preferably, a furnace door is rotatably mounted on the front end of the furnace body, and heating parts are respectively provided on both side surfaces of the thermal insulation brick layer and the inner surface of the furnace door.

[0009] Preferably, sleeves are fixedly embedded on the upper surface of the top plate near the two ends of the rotating shaft, and the two ends of the rotating shaft are rotated and inserted into the inner sides of the sleeves.

[0010] Preferably, a card entrance and a wide opening are opened on the upper surface of the top plate, the fixed rotating wheel moves through the inner side of the card entrance, the movable rotating wheel moves through the inner side of the wide opening, and a shielding plate is installed on the upper surface of the top plate and on one side close to the wide opening through an elastic mechanism.

[0011] Preferably, the elastic mechanism includes a fixing seat fixedly mounted on the upper surface of the top plate, two T-shaped rods are fixedly connected to one side surface of the fixing seat, the ends of the two T-shaped rods are slidably sleeved with a vertical plate, the lower end of the vertical plate is fixedly connected to the upper surface of the shielding plate, the outer surface of the T-shaped rod is sleeved with a compression spring, the compression spring is located between the vertical plate and the fixing seat, an arched portion is provided in the middle of the outer surface of the shielding plate, and the rotating shaft slides through the inner side of the arched portion.

[0012] Preferably, the telescopic mechanism includes a telescopic cylinder fixedly connected to the upper end of one side surface of the fixed clamping plate, the telescopic end of the telescopic cylinder is fixedly connected to the one side surface of the movable clamping plate, the upper end of the movable clamping plate is fixedly connected to a guide plate, and the guide plate slides through the side surface of the fixed clamping plate.

[0013] Preferably, the steering mechanism includes a fixing frame fixedly mounted on the upper surface of the top plate and close to one side of the fixed rotating wheel, a rotating column is rotatably mounted on the upper end of one side of the fixing frame, one end of the rotating column is fixedly connected to a transmission gear, the other end of the rotating column passes through the fixing frame and is fixedly connected to the output shaft of the motor, and the motor is fixedly mounted on the outer surface of the fixing frame, an arc-shaped tooth plate is fixedly connected to the edge of the fixed rotating wheel, and the transmission gear is meshed with the arc-shaped tooth plate.

[0014] Preferably, a positioning block is fixedly connected to the upper surface of the rotating shaft, and the positioning block slides through the side surface of the movable rotating wheel.

[0015] Preferably, the side surfaces of the movable clamping plate and the fixed clamping plate are respectively penetrated with sliding openings, the T-shaped column slides through the inner side of the sliding opening, and the outer surface of the T-shaped column is fixedly sleeved with a limiting ring, which slides against the side surface of the movable clamping plate or the fixed clamping plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention can fully heat all positions of the block material without opening the furnace, so that the preheating is more comprehensive; The present invention can effectively reduce the heat loss during preheating and reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a forging blank preheating device of the present invention; Figure 2 It is a partial structural schematic diagram of a forging preheating device of the present invention; Figure 3 It is a schematic diagram of a partial structure of a forging preheating device of the present invention from another perspective; Figure 4 A cross-sectional view of a top plate of a forging preheating device according to the present invention; Figure 5 It is a schematic diagram of a fixed rotating wheel and a movable rotating wheel of a forging preheating device of the present invention; Figure 6 A forging blank preheating device according to the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 It is a schematic diagram of the top plate of a forging preheating device of the present invention; Figure 8 A forging blank preheating device according to the present invention Figure 7 Enlarged view of point B in the middle; Fig. 9 The invention discloses a forging preheating device. Figure 1 ; Fig.10 The invention discloses a forging preheating device. Figure 2 .

[0018] 1. Furnace body; 2. Table; 3. Curved block; 4. Insulation brick layer; 5. Top plate; 6. Fixed rotating wheel; 7. Moving rotating wheel; 8. Moving clamping plate; 9. Fixed clamping plate; 10. Slide; 11. T-shaped column; 12. Limiting ring; 13. Rotating shaft; 14. Sleeve; 15. Positioning block; 16. Guide plate; 17. Telescopic cylinder; 18. Arc tooth plate; 19. Transmission gear; 20. Rotating column; 21. Motor; 22. Fixed frame; 23. Entrance; 24. Wide mouth; 25. Shielding plate; 26. Arched part; 27. Vertical plate; 28. Fixed seat; 29. ​​T-shaped rod; 30. Compression spring; 31. Furnace door; 32. Heating part; 33. Block material. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] like Figure 1-Figure 10The forging preheating equipment shown in the figure comprises a furnace body 1, a table plate 2 is installed on the inner side of the furnace body 1, an insulation brick layer 4 is arranged on the inner wall of the furnace body 1, a plurality of curved blocks 3 are fixedly connected to the upper surface of the table plate 2, a top plate 5 is fixedly installed on the upper surface of the furnace body 1, a fixed rotating wheel 6 and a moving rotating wheel 7 are rotatably embedded on the outer surface of the top plate 5, the lower sides of the fixed rotating wheel 6 and the moving rotating wheel 7 movably pass through the upper surface of the insulation brick layer 4, a rotating shaft 13 is fixedly passed through the middle axis of the fixed rotating wheel 6, the rotating shaft 13 and the moving rotating wheel 7 slide in cooperation along the transverse direction, a fixed clamping plate 9 is fixedly passed through the interior of the fixed rotating wheel 6, a moving clamping plate 8 is fixedly passed through the interior of the moving rotating wheel 7, a T-shaped column 11 is movably arranged at the lower end of the adjacent side of the fixed clamping plate 9 and the moving clamping plate 8, a telescopic mechanism is commonly arranged at the upper ends of the fixed clamping plate 9 and the moving clamping plate 8, and a steering mechanism is arranged at the side of the fixed rotating wheel 6 away from the moving rotating wheel 7; The corner of the block material 33 extends into between two adjacent curved blocks 3 , and when the T-shaped columns 11 on both sides clamp the block material 33 and drag it backward, the block material 33 rolls relatively on the surface of the curved block 3 .

[0021] like Figure 1 As shown, a furnace door 31 is rotatably mounted at the front end of the furnace body 1, and heating parts 32 are respectively provided on the two side surfaces of the insulation brick layer 4 and the inner surface of the furnace door 31. The heating part 32 can be heated by a resistance wire, and the heating temperature is stable and easy to control. It is a common technology and will not be described in detail.

[0022] like Figure 4 , Figure 5 As shown, sleeves 14 are fixedly mounted on the upper surface of the top plate 5 near both ends of the rotating shaft 13, and both ends of the rotating shaft 13 are respectively rotated and snapped into the inner side of the sleeves 14. The sleeves 14 are used to cooperate with the rotating shaft 13 to rotate.

[0023] like Figure 7 , Figure 8 As shown, the upper surface of the top plate 5 is provided with a card entrance 23 and a wide opening 24, the fixed rotating wheel 6 moves through the inner side of the card entrance 23, the movable rotating wheel 7 moves through the inner side of the wide opening 24, and a shielding plate 25 is installed on the upper surface of the top plate 5 and on one side close to the wide opening 24 through an elastic mechanism, which plays the role of covering part of the wide opening 24 to prevent heat from overflowing.

[0024] The elastic mechanism includes a fixing seat 28 fixedly mounted on the upper surface of the top plate 5, and two T-shaped rods 29 are fixedly connected to one side surface of the fixing seat 28. The ends of the two T-shaped rods 29 are slidably sleeved with a vertical plate 27. The lower end of the vertical plate 27 is fixedly connected to the upper surface of the shielding plate 25. The outer surface of the T-shaped rod 29 is sleeved with a compression spring 30, and the compression spring 30 is located between the vertical plate 27 and the fixing seat 28. An arched portion 26 is provided in the middle of the outer surface of the shielding plate 25, and the rotating shaft 13 slides through the inner side of the arched portion 26. The provision of the arched portion 26 can prevent the shielding plate 25 from interfering with the rotating shaft 13.

[0025] like Figure 5 As shown, the telescopic mechanism includes a telescopic cylinder 17 fixedly connected to the upper end of one side surface of the fixed clamping plate 9, the telescopic end of the telescopic cylinder 17 is fixedly connected to one side surface of the movable clamping plate 8, and the upper end of the movable clamping plate 8 is fixedly connected to a guide plate 16, which slides through the side surface of the fixed clamping plate 9. It is used to improve the stability of the movable clamping plate 8 when it moves horizontally.

[0026] like Figure 2 , Figure 5 As shown, the steering mechanism includes a fixing frame 22 fixedly mounted on the upper surface of the top plate 5 and close to one side of the fixed rotating wheel 6, a rotating column 20 is rotatably mounted on the upper end of one side of the fixing frame 22, one end of the rotating column 20 is fixedly connected to a transmission gear 19, the other end of the rotating column 20 passes through the fixing frame 22 and is fixedly connected to the output shaft of the motor 21, and the motor 21 is fixedly mounted on the outer surface of the fixing frame 22, an arc-shaped toothed plate 18 is fixedly connected to the edge of the fixed rotating wheel 6, and the transmission gear 19 is meshed with the arc-shaped toothed plate 18.

[0027] like Figure 5 , Figure 6 As shown, a positioning block 15 is fixedly connected to the upper surface of the rotating shaft 13, and the positioning block 15 slides through the side surface of the moving rotating wheel 7. The positioning block 15 allows the moving rotating wheel 7 to move laterally relative to the rotating shaft 13 and to rotate synchronously with the rotating shaft 13.

[0028] like Figure 5 As shown, the side surfaces of the movable clamping plate 8 and the fixed clamping plate 9 are respectively penetrated with a sliding opening 10, and the T-shaped column 11 slides through the inner side of the sliding opening 10. The outer surface of the T-shaped column 11 is fixedly sleeved with a limiting ring 12, and the limiting ring 12 slides and sticks to the side surface of the movable clamping plate 8 or the fixed clamping plate 9. The limiting ring 12 is used to prevent the end of the T-shaped column 11 from escaping from the inner side of the sliding opening 10.

[0029] During use, the block material 33 is put into the furnace body 1 through the material taking machine, so that the corner of the block material 33 extends between two adjacent curved blocks 3, and the rotating column 20 is driven to rotate by the motor 21, and the transmission gear 19 rotates, so that the arc-shaped toothed plate 18 rotates, and then the fixed rotating wheel 6 rotates. Due to the action of the positioning block 15 and the rotating shaft 13, the movable rotating wheel 7 rotates synchronously, and the lower ends of the movable clamping plate 8 and the fixed clamping plate 9 rotate toward the front. When the T-shaped columns 11 on both sides are close to the two sides of the block material 33, the telescopic cylinder 17 is controlled to contract so that the T-shaped columns 11 on both sides clamp the block material 33. The state is as follows. Fig. 9As shown, the furnace door 31 is then closed to perform internal heating. After heating for a period of time, the motor 21 is controlled to reverse, so that the two T-shaped columns 11 clamp the block material 33 and move backward. The block material 33 rolls relatively on the surface of the curved block 3, changes to another corner and extends between two adjacent curved blocks 3. Since the T-shaped column 11 can slide and rotate relatively on the inner side of the sliding mouth 10, the problem of jamming will not occur. After the dragging is completed, the telescopic cylinder 17 is extended, and the motor 21 is rotated again, so that the T-shaped column 11 is away from the original clamping position of the block material 33. At the same time, because the block material 33 itself also rotates relatively, the state is as shown in FIG. Fig.10 As shown, therefore, when heating is performed again, the block material 33 can be fully heated at all positions, making the preheating more comprehensive.

[0030] During the heating process, since the fixed wheel 6 and the moving wheel 7 are both embedded in the surface of the insulation brick layer 4, the heat overflow can be reduced as much as possible. Since the moving wheel 7 needs space to move, a small amount of heat overflows from the gap between the insulation brick layer 4 and the moving wheel 7. The presence of the baffle plate 25 prevents the heat from overflowing through the wide mouth 24. During the lateral movement of the moving wheel 7, the moving wheel 7 pushes the baffle plate 25, so that the compression spring 30 is squeezed. When the moving wheel 7 moves toward the side close to the fixed wheel 6, under the elastic force of the compression spring 30, one side of the baffle plate 25 is always attached to the side of the moving wheel 7, which effectively prevents heat from overflowing to the outside of the entire device, reduces heat damage, and saves production costs.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A forging preheating device, comprising a furnace body (1), characterized in that: A table plate (2) is installed on the inner side of the furnace body (1), and an insulation brick layer (4) is provided on the inner wall of the furnace body (1). A plurality of curved blocks (3) are fixedly connected to the upper surface of the table plate (2). A top plate (5) is fixedly installed on the upper surface of the furnace body (1). A fixed rotating wheel (6) and a moving rotating wheel (7) are rotatably embedded on the outer surface of the top plate (5). The lower sides of the fixed rotating wheel (6) and the moving rotating wheel (7) moveably pass through the upper surface of the insulation brick layer (4), and a rotating shaft is fixedly penetrated through the middle axis of the fixed rotating wheel (6). (13), the rotating shaft (13) and the moving rotating wheel (7) are slidably matched in the transverse direction, a fixed clamping plate (9) is fixedly passed through the interior of the fixed rotating wheel (6), and a moving clamping plate (8) is fixedly passed through the interior of the moving rotating wheel (7), and a T-shaped column (11) is movably provided at the lower end of the side close to the fixed clamping plate (9) and the moving clamping plate (8), and a telescopic mechanism is commonly provided at the upper end of the fixed clamping plate (9) and the moving clamping plate (8), and a steering mechanism is provided on the side of the fixed rotating wheel (6) away from the moving rotating wheel (7); The corner of the block material (33) extends into between two adjacent curved blocks (3), and when the T-shaped columns (11) on both sides clamp the block material (33) and drag it backward, the block material (33) rolls relatively on the surface of the curved block (3).

2. A forging preheating device according to claim 1, characterized in that: A furnace door (31) is rotatably mounted on the front end of the furnace body (1), and heating parts (32) are respectively provided on both side surfaces of the thermal insulation brick layer (4) and the inner surface of the furnace door (31).

3. A forging preheating device according to claim 1, characterized in that: Sleeve seats (14) are fixedly mounted on the upper surface of the top plate (5) at both ends close to the rotating shaft (13), and the two ends of the rotating shaft (13) are respectively rotated and snapped into the inner side of the sleeve seats (14).

4. A forging preheating device according to claim 1, characterized in that: The upper surface of the top plate (5) is provided with a card entrance (23) and a wide opening (24); the fixed rotating wheel (6) moves through the inner side of the card entrance (23); the movable rotating wheel (7) moves through the inner side of the wide opening (24); and a shielding plate (25) is installed on the upper surface of the top plate (5) and on one side close to the wide opening (24) via an elastic mechanism.

5. A forging preheating device according to claim 4, characterized in that: The elastic mechanism comprises a fixing seat (28) fixedly mounted on the upper surface of the top plate (5); two T-shaped rods (29) are fixedly connected to one side surface of the fixing seat (28); the ends of the two T-shaped rods (29) are slidably sleeved with a vertical connecting plate (27); the lower end of the vertical connecting plate (27) is fixedly connected to the upper surface of the shielding plate (25); the outer surface of the T-shaped rod (29) is sleeved with a compression spring (30); the compression spring (30) is located between the vertical connecting plate (27) and the fixing seat (28); a raised portion (26) is provided in the middle of the outer surface of the shielding plate (25); and the rotating shaft (13) slides through the inner side of the raised portion (26).

6. A forging preheating device according to claim 1, characterized in that: The telescopic mechanism comprises a telescopic cylinder (17) fixedly connected to the upper end of one side surface of the fixed clamping plate (9), the telescopic end of the telescopic cylinder (17) being fixedly connected to the one side surface of the movable clamping plate (8), the upper end of the movable clamping plate (8) being fixedly connected to a guide plate (16), and the guide plate (16) slidingly passes through the side surface of the fixed clamping plate (9).

7. The forging preheating equipment according to claim 1, characterized in that: The steering mechanism comprises a fixing frame (22) fixedly mounted on the upper surface of the top plate (5) and close to one side of the fixed rotating wheel (6); a rotating column (20) is rotatably mounted on the upper end of one side of the fixing frame (22); one end of the rotating column (20) is fixedly connected to a transmission gear (19); the other end of the rotating column (20) passes through the fixing frame (22) and is fixedly connected to an output shaft of a motor (21); the motor (21) is fixedly mounted on the outer surface of the fixing frame (22); an arc-shaped toothed plate (18) is fixedly connected to the edge of the fixed rotating wheel (6); and the transmission gear (19) meshes with the arc-shaped toothed plate (18).

8. The forging preheating device according to claim 1, characterized in that: A positioning block (15) is fixedly connected to the upper surface of the rotating shaft (13), and the positioning block (15) slides through the side surface of the movable rotating wheel (7).

9. The forging preheating device according to claim 1, characterized in that: The side surfaces of the movable clamping plate (8) and the fixed clamping plate (9) are respectively penetrated with a sliding opening (10), the T-shaped column (11) slides through the inner side of the sliding opening (10), and the outer surface of the T-shaped column (11) is fixedly sleeved with a limiting ring (12), and the limiting ring (12) slides on the side surface of the movable clamping plate (8) or the fixed clamping plate (9).

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