Bulldozer blade corner pressing device

Abstract

The present application relates to bulldozer blade angle pressing technology field, specifically to a kind of bulldozer blade angle pressing conveying device, including upper tire body, lower tire body is arranged in the lower part of upper tire body, lower tire body upper end face one side is fixedly arranged with positioning baffle, lower tire body is sequentially arranged with lifting seat A and lifting seat B along the direction of conveyance, and all are connected with lower tire body in lifting mode, lifting seat A upper portion is rotatably provided with roller A, and the upper edge of roller A protrudes from the upper end surface of lifting seat A;Lifting seat B upper portion is rotatably provided with roller B, and the upper edge of roller B protrudes from the upper end surface of lifting seat B, the rolling support surface with certain inclination angle formed by roller A and roller B, so that the blade angle after forming can slide to the direction of conveyance under the action of its gravity, preliminary conveying can be realized without pushing mechanism, simplify work flow, improve the working efficiency of overall blade angle pressing.

Description

Technical Field

[0001] This invention relates to the field of bulldozer blade corner forming technology, and more specifically to a bulldozer blade corner forming conveyor device. Background Technology

[0002] Our company filed an invention patent application on January 9, 2026, with application number 2026100281915 – a bulldozer blade corner forming mold. The mold includes an upper body, a lower body at the bottom of the upper body, a positioning baffle on the lower body, and mounting holes. Several mounting holes are located within the lower body and extend to the upper surface of the lower body. A lifting seat is installed within the mounting holes, connected to a power mechanism for driving the lifting seat to rise and fall. When retracted into the mounting holes, it does not affect the forming of the blade corner blank. After forming, the lifting seat extends out of the mounting holes and raises the blade corner above the positioning baffle. Only one worker is needed to complete the work previously done by two, greatly improving work efficiency.

[0003] In the above patent applications, after the blade corner is pressed and formed, the lifting seat lifts it to a predetermined height, and then the material feeding mechanism pushes the blade corner away from the lower die body. Then the material feeding mechanism returns to push the blade corner blank into the lower die body. This results in a long idle stroke between the material feeding mechanism pushing the formed blade corner and pushing the blank, which lengthens the entire production cycle and reduces production efficiency. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this invention provides a bulldozer blade corner forming conveyor device. The technical problem it solves is that the material feeding mechanism has a long idle stroke between pushing the forming blade corner and pushing the blank material, resulting in a lengthened production cycle and reduced production efficiency. To solve the above-mentioned technical problems, the technical solution adopted by this invention is: A bulldozer blade corner forming conveyor device includes: The upper tire body has a lower tire body located at its lower part; A positioning baffle is fixedly installed on one side of the lower tire body. Lifting seat A and lifting seat B are arranged sequentially along the conveying direction. Both lifting seat A and lifting seat B are connected to the lower tire body by lifting. Roller A is connected to lifting seat A in a rotating manner, and the upper edge of roller A protrudes from the upper surface of lifting seat A; Roller B is connected to the lifting seat B in a rotating manner, and the upper edge of roller B protrudes from the upper surface of the lifting seat B. Mounting holes are formed inside the lower tire body and extend to the upper surface of the lower tire body. Lifting seats A and B are slidably connected to the mounting holes. During pressing, the upper edges of rollers A and B are lower than the upper surface of the lower tire body. The first lifting mechanism for driving the lifting seat A to move up and down, and the second lifting mechanism for driving the lifting seat B to move up and down, during transmission, the upper limit of the roller A is higher than the upper limit of the roller B, and the upper limit of the roller B is higher than the upper surface of the positioning baffle, so that the bulldozer blade angle slides in the transmission direction under its own gravity.

[0005] Furthermore, lifting seat A and lifting seat B are two separate entities, with two lifting seats A arranged side by side and two lifting seats B arranged side by side on one side of the two lifting seats A.

[0006] Furthermore, the first lifting mechanism includes a push plate A, the push plate A has an inclined surface A, and the lower part of the lifting seat A has an inclined surface A' that slides and fits with the inclined surface A; The second lifting mechanism includes a push plate B, which has an inclined surface B, and the lower part of the lifting seat B has an inclined surface B' that slides and fits with the inclined surface B. The slope angle of inclined plane A is α, and the slope angle of inclined plane B is β, where β < α.

[0007] Furthermore, the positioning baffle has a through hole that communicates with the mounting hole, and the mounting hole at the through hole is provided with a lifting seat C. The upper part of the lifting seat C is provided with a roller C in a rotating manner, and the lower part of the lifting seat C is provided with an inclined surface C'. It is also equipped with a push plate C for driving the lifting seat C to move up and down. The push plate C has an inclined surface C that slides and fits with the inclined surface C'. The slope angle of the inclined surface C is γ, where γ < β.

[0008] Furthermore, there are two lifting seats C.

[0009] Furthermore, when lifting seats A, B, and C are all at the upper limit of the upward movement, the angle between the tangents of rollers A, B, and C and the horizontal plane is θ, and the range of θ is 3°-12°.

[0010] Furthermore, the lower tire body is provided with a sliding groove for the push plate A, push plate B, and push plate C to slide, and the sliding groove is connected to the mounting hole; A linear telescopic power component is provided on one side of the lower tire body. The output end of the linear telescopic power component is connected to a connecting plate, which is connected to push plate A, push plate B and push plate C.

[0011] Furthermore, the linear telescopic power component is a pneumatic cylinder or a hydraulic cylinder, with the output shaft of the pneumatic cylinder or hydraulic cylinder connected to the connecting plate.

[0012] Furthermore, inclined surfaces D are symmetrically provided on the upper sidewalls of lifting seats A and B. Support blocks for sealing the installation holes are provided on inclined surfaces D in a sliding manner, and a sliding limit structure is provided between the support blocks and inclined surfaces D. When lifting seats A and B rise, the support block is restricted by the side wall of the mounting hole and rises accordingly. After the support block leaves the mounting hole, it moves diagonally downward along the sliding limit structure to expose rollers A and B.

[0013] Furthermore, the sliding limiting structure includes a slot opened along the inclined surface D, and a slider is slidably connected to the slot. The slider is fixedly disposed inside the support block.

[0014] The beneficial effects of this invention are as follows: This invention arranges lifting seats A and B sequentially along the conveying direction, and installs rollers A and B on them respectively. A first lifting mechanism and a second lifting mechanism drive their independent lifting. After pressing is completed, the first lifting mechanism drives lifting seat A to rise. Since the upper limit of roller A is higher than that of roller B, the rolling support surface formed by rollers A and B at a certain angle allows the formed cutting edge to slide in the conveying direction under its own gravity. This eliminates the need for a material feeding mechanism to push the material, simplifying the workflow and improving the overall efficiency of cutting edge pressing.

[0015] By setting the slope angle α of inclined surface A to be greater than the slope angle β of inclined surface B, under the action of the same driving source, lifting seat A can obtain a greater lift than lifting seat B, thus naturally forming the required height difference. This satisfies both the lifting requirements and the need to form a rolling support surface with a certain tilt angle, simplifying the structural design.

[0016] The lifting seat C and roller C are set at the positioning baffle. The slope angle γ of the inclined surface C of the push plate C is less than β, so that the upper limit of the roller C is the lowest. This further assists the forming blade angle to smoothly transition from the positioning baffle to the conveyor, ensuring smooth transmission. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention; Figure 3 This is a front view schematic diagram of the structure of the present invention, in which a conveyor is provided on one side of the lower tire body; Figure 4 This is a schematic diagram of the hidden lower tire body transmission embodiment of the present invention; Figure 5 This is a schematic diagram of the lower part of the tire body structure of the present invention; Figure 6 This is a schematic diagram of the connection structure between the push plate A, push plate B, push plate C, connecting plate and linear telescopic power component of the present invention; Figure 7 This is the invention Figure 6A schematic diagram of the structure in the left view; Figure 8 This is a three-dimensional exploded view of the lifting seat A or lifting seat B and the support block of the present invention; Figure 9 This is a three-dimensional schematic diagram of the lifting seat C of the present invention; In the picture: 1. Upper tire body, 2. Lower tire body, 3. Positioning baffle, 4. Lifting seat A, 5. Lifting seat B, 6. Roller A, 7. Roller B, 8. Push plate A, 9. Inclined surface A, 10. Support block, 11. Push plate B, 12. Inclined surface B, 13. Through hole, 14. Lifting seat C, 15. Sliding block, 16. Push plate C, 17. Inclined surface C, 18. Roller C, 19. Slide groove, 20. Linear telescopic power component, 21. Connecting plate, 22. Inclined surface D, 23. Conveyor. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this invention. The specific implementation scheme of this invention is as follows: A bulldozer blade corner forming conveyor includes an upper tire body 1, with a lower tire body 2 located at the bottom of the upper tire body 1. A positioning baffle 3 is fixedly installed on one side of the upper end face of the lower tire body 2. Lifting seats A4 and B5 are arranged sequentially along the conveying direction on the lower tire body 2. Lifting seats A4 and B5 are two separate units, with two lifting seats A4 arranged side by side and two lifting seats B5 arranged side by side on one side of the two lifting seats A4, and both connected to the lower tire body 2 by lifting. A roller A6 is rotatably installed on the upper part of the lifting seat A4, with the upper edge of the roller A6 protruding from the upper end face of the lifting seat A4. A roller B7 is rotatably installed on the upper part of the lifting seat B5, with the upper edge of the roller B7 protruding from the upper end face of the lifting seat B5. A mounting hole extending to its upper end face is opened in the lower tire body 2, and both lifting seats A4 and B5 are slidably connected to the mounting hole. During the pressing operation, the upper edges of rollers A6 and B7 are lower than the upper surface of the lower die body 2 to ensure that the blank can be placed on the lower die body 2 for pressing.

[0019] It should be noted that, to drive the lifting seats A4 and B5 to move up and down, this device is equipped with a first lifting mechanism and a second lifting mechanism. The first lifting mechanism includes a push plate A8, on which an inclined surface A9 is formed. The lower part of the lifting seat A4 has an inclined surface A' that slides and fits against the inclined surface A9. The second lifting mechanism includes a push plate B11, on which an inclined surface B12 is formed. The lower part of the lifting seat B5 has an inclined surface B' that slides and fits against the inclined surface B12. The slope angle of the inclined surface A9 is α, and the slope angle of the inclined surface B12 is β, where β < α. This design allows the lifting seat A4 to achieve a greater lift than the lifting seat B5 under the same driving force.

[0020] It should be noted that during conveying, the upper limit of roller A6 is higher than that of roller B7, and the upper limit of roller B7 is higher than the upper surface of positioning baffle 3. This creates a downward-sloping rolling support surface between rollers A6 and B7, allowing the bulldozer blade, after being pressed and formed, to slide smoothly along this inclined surface in the conveying direction under its own gravity. Initial conveying can be achieved without the need for a material feeding mechanism, simplifying the workflow and improving the overall efficiency of blade forming.

[0021] Furthermore, the positioning baffle 3 has a through hole 13 communicating with the mounting hole, and two parallel lifting seats C14 are arranged in the mounting hole at the through hole 13. The upper part of the lifting seat C14 is provided with a roller C18 in a rotatable manner, and the lower part is provided with an inclined surface C'. Correspondingly, a push plate C16 is also provided for driving the lifting seat C14 to move up and down. The push plate C16 has an inclined surface C17 that slides and fits against the inclined surface C'. The slope angle of the inclined surface C17 is γ, and γ < β.

[0022] When lifting seats A4, B5, and C14 are all at the upper limit of the upward movement, the angle between the tangents of rollers A6, B7, and C18 and the horizontal plane is θ. In this embodiment, the angle is 3°, but in other embodiments it can be 4°, 5°, 6°, 7°, 8°, 9°, 10°, 11°, or 12°. This angle ensures that the blade can slide smoothly by its own weight without sliding too fast or becoming unstable due to excessive tilt. This further assists the formed blade to smoothly transition from the positioning baffle 3 to the subsequent conveyor 23. During the movement, the blade will not collide with lifting seats A4, B5, C14, positioning baffle 3, or the lower tire body 2.

[0023] It should be noted that, to achieve synchronous driving of push plates A8, B11, and C16, the lower tire body 2 is provided with a sliding groove 19 for the three to slide, which is connected to the mounting hole. A linear telescopic power component 20 is provided on one side of the lower tire body 2. This power component can be a pneumatic cylinder or a hydraulic cylinder, and its output end is connected to a connecting plate 21, which is fixedly connected to push plates A8, B11, and C16. When the linear telescopic power component 20 is activated, it drives push plates A8, B11, and C16 to slide synchronously within the sliding groove 19 via the connecting plate 21, thereby driving the corresponding lifting seats A4, B5, and C14 to rise and fall through their respective inclined surfaces.

[0024] Furthermore, the upper sidewalls of lifting seats A4 and B5 are symmetrically provided with inclined surfaces D22. Support blocks 10 for sealing the mounting holes are slidably provided on the inclined surfaces D22. During the pressing process, the upper surface of the support block 10 is flush with the upper surface of the lower die body 2, which prevents the high-temperature blade blank from sinking into the mounting hole due to pressure during the pressing process, causing the finished blade to bulge, and ensuring the flatness of the bottom surface of the blade.

[0025] It should be noted that a sliding limiting structure is provided between the support block 10 and the inclined surface D22. This structure includes a slot 13 opened along the inclined surface D22, and a slider 15 is slidably connected in the slot 13. The slider 15 is fixedly installed on the inner side of the support block 10.

[0026] Specifically, during the ascent of lifting seats A4 and B5, the support block 10 is initially constrained by the sidewall of the mounting hole and rises along with the lifting seats. Once the support block 10 is completely detached from the mounting hole, it is no longer constrained by the hole wall. Under its own weight and the pressure of the cutting edge, and guided by the slider 15 and the slot 13, it moves diagonally downwards along the inclined surface D22 towards the lifting seats A4 and B5. It should be noted that the slot 13 is a dovetail groove, and the slider 15 has a dovetail structure to fit into the dovetail groove and not detach outwards. Furthermore, when the lifting seats A4 and B5 reach their upper limit, the support block 10 will not slide down from the bottom due to the obstruction of the lower tire body 2. This exposes the rollers A6 and B7 below, allowing the cutting edge to contact the rollers for transmission.

[0027] When the lifting seat descends, the support block 10 is guided by the slider 15 and the slot 13 to gather inward and slide upward along the inclined surface D22 until it retracts into the range of the mounting hole, and continues to move downward and is hidden in the mounting hole, providing stable support for the blade blank.

[0028] The working principle and process of this invention are as follows: like Figure 1 As shown, the upper tire body 1 is fixed on the press head of the press, and the lower tire body 2 and the hydraulic cylinder 20 are installed on the press operating table.

[0029] During the pressing operation, the feeding mechanism places the blank with the cutting edge into the groove of the lower die body 2, with one side abutting against the positioning baffle 3. Subsequently, the upper die body 1 moves downward under the drive of the press to press the blank with the cutting edge on the lower die body 2.

[0030] After the molding is completed, the upper tire body 1 is reset upwards. The hydraulic cylinder 20 is activated, causing its output shaft to extend and drive the push plate A8, push plate B11, and push plate C16 to move through the connecting plate 21. The inclined surface A9 of push plate A8 interacts with the inclined surface A' of the lower part of the lifting seat A4. Due to the large slope angle α of the inclined surface A9, the lifting seat A4 obtains a large lift. The inclined surface B12 of push plate B11 cooperates with the inclined surface B' of the lower part of the lifting seat B5. Since the slope angle β < α, the lift of the lifting seat B5 is less than that of the lifting seat A4. The inclined surface C17 of push plate C16 cooperates with the inclined surface C' of the lower part of the lifting seat C14. The slope angle γ < β, which makes the lift of the lifting seat C14 the smallest, but also causes the upper edge of the roller C18 to protrude out of the positioning baffle 3.

[0031] As the lifting seats A4 and B5 rise, the support block 10 initially rises along with them, constrained by the sidewall of the mounting hole. Once the support block 10 is completely detached from the mounting hole and no longer restricted by the hole wall, under its own weight and the pressure of the forming blade angle, the slider 15 slides downward along the slot 13 on the lifting seat, causing the support block 10 to move diagonally downward along the inclined surface D22, gradually revealing the rollers A6 and B7.

[0032] When lifting seats A4, B5 and C14 reach their respective upper limits, roller A6 is at its highest position, roller B7 is next, and roller C18 is at its lowest position. The upper limit of roller B7 is higher than the upper surface of the positioning baffle 3.

[0033] At this time, the forming blade is supported by rollers A6, B7 and C18. Due to the certain tilt angle of the rolling support surface, the blade overcomes the rolling friction of the rollers under its own weight and begins to slide along the conveying direction. One side of the blade first contacts the conveyor 23, and then gradually leaves rollers A6, B7 and C18 under the conveyor, and is conveyed to the next process.

[0034] After the transfer is completed, the output shaft of the linear telescopic power component 20 retracts, driving the push plates A8, B11, and C16 to slide back to their original positions via the connecting plate 21. The lifting seats A4, B5, and C14 then descend under their own weight. During the descent, the support block 10, guided by the slider 15 and the slot 13, slides upward along the inclined surface D22 and converges inward. Once inside the mounting hole, it is further lowered by the sidewall of the mounting hole, eventually disappearing into the mounting hole. Its upper surface is once again flush with the upper surface of the lower die body 2, and the device returns to its initial state, awaiting the next pressing and transfer cycle of the die corner blank.

[0035] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although the invention has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments are conceived within the scope of the invention described herein.

Claims

1. A bulldozer blade corner forming conveyor, characterized in that, include: Upper body (1), and a lower body (2) is provided at the lower part of the upper body (1). Positioning baffle (3) is fixedly installed on one side of the lower tire body (2); Lifting seats A (4) and B (5) are arranged sequentially along the conveying direction. Both lifting seats A (4) and B (5) are connected to the lower tire body (2) by lifting. Roller A (6) is connected to lifting seat A (4) in a rotating manner, and the upper edge of roller A (6) protrudes from the upper surface of lifting seat A (4); Roller B (7) is connected to lifting seat B (5) in a rotating manner, and the upper edge of roller B (7) protrudes from the upper surface of lifting seat B (5); The mounting hole is located inside the lower tire body (2) and extends to the upper end face of the lower tire body (2). Lifting seat A (4) and lifting seat B (5) are slidably connected to the mounting hole. During pressing, the upper edges of roller A (6) and roller B (7) are lower than the upper end face of the lower tire body (2). The first lifting mechanism for driving the lifting seat A (4) to move up and down, and the second lifting mechanism for driving the lifting seat B (5) to move up and down, during transmission, the upper limit of the roller A (6) is higher than the upper limit of the roller B (7), and the upper limit of the roller B (7) is higher than the upper surface of the positioning baffle (3), so that the bulldozer blade angle slides in the transmission direction under its own gravity.

2. The bulldozer blade corner forming conveyor device according to claim 1, characterized in that: Lifting seat A (4) and lifting seat B (5) are two separate entities. The two lifting seats A (4) are arranged side by side, and the two lifting seats B (5) are arranged side by side on one side of the two lifting seats A (4).

3. A bulldozer blade corner forming conveyor according to claim 1 or 2, characterized in that: The first lifting mechanism includes a push plate A (8), the push plate A (8) has an inclined surface A (9), and the lower part of the lifting seat A (4) has an inclined surface A' that slides and fits with the inclined surface A (9); The second lifting mechanism includes a push plate B (11), the push plate B (11) has an inclined surface B (12), and the lower part of the lifting seat B (5) has an inclined surface B' that slides and fits with the inclined surface B (12); The slope angle of inclined surface A (9) is α, and the slope angle of inclined surface B (12) is β, where β < α.

4. The bulldozer blade corner forming conveyor device according to claim 3, characterized in that: The positioning baffle (3) has a through hole (13) that communicates with the mounting hole. The mounting hole at the through hole (13) is provided with a lifting seat C (14). The upper part of the lifting seat C (14) is provided with a roller C (18) in a rotating manner. The lower part of the lifting seat C (14) is provided with an inclined surface C'. It is also provided with a push plate C (16) for driving the lifting seat C (14) to move up and down. The push plate C (16) has an inclined surface C (17) that slides and fits with the inclined surface C'. The slope angle of the inclined surface C (17) is γ, where γ < β.

5. A bulldozer blade corner forming conveyor device according to claim 4, characterized in that: The number of lifting seats C (14) is two.

6. A bulldozer blade corner forming conveyor according to claim 4, characterized in that: When lifting seats A (4), B (5) and C (14) are all at the upper limit of the upward movement, the angle between the tangents of rollers A (6), B (7) and C (18) and the horizontal plane is θ, and the range of θ is 3°-12°.

7. A bulldozer blade corner forming conveyor according to claim 6, characterized in that: The lower tire body (2) is provided with a sliding groove (19) for sliding of push plate A (8), push plate B (11) and push plate C (16), and the sliding groove (19) is connected to the mounting hole; A linear telescopic power component (20) is provided on one side of the lower tire body (2). A connecting plate (21) is connected to the output end of the linear telescopic power component (20). The connecting plate (21) is connected to the push plate A (8), push plate B (11) and push plate C (16).

8. A bulldozer blade corner forming mold according to claim 7, characterized in that: The linear telescopic power component (20) is a cylinder or a hydraulic cylinder, and the output shaft of the cylinder or hydraulic cylinder is connected to the connecting plate (21).

9. A bulldozer blade corner forming conveyor device according to claim 2, characterized in that: The upper sidewalls of lifting seats A (4) and B (5) are symmetrically provided with inclined surfaces D (22). The inclined surfaces D (22) are provided with support blocks (10) that block the installation holes in a sliding manner. A sliding limit structure is provided between the support blocks (10) and the inclined surfaces D (22). When the lifting seats A (4) and B (5) rise, the support block (10) is restricted by the side wall of the mounting hole and rises accordingly. After the support block (10) leaves the mounting hole, it moves obliquely downward along the sliding limit structure to expose the rollers A (6) and B (7).

10. A bulldozer blade corner forming conveyor according to claim 9, characterized in that: The sliding limit structure includes a slot (13) opened along the inclined surface D (22), and a slider (15) is slidably connected to the slot (13). The slider (15) is fixedly arranged inside the support block (10).

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