Scratch-proof roller of progressive die

Abstract

The utility model relates to a progressive die anti-scratch roller which comprises a rack, an upper die and a lower die, the upper die is meshed with the lower die, the lower die comprises a lower die rotating shaft and a lower die roller set, the lower die roller set comprises a lower die main roller and two lower die auxiliary rollers, and the lower die main roller is fixedly connected with the lower die rotating shaft. The upper die comprises an upper die rotating shaft and an upper die rolling wheel set, the upper die rolling wheel set comprises an upper die main rolling wheel and two upper die auxiliary rolling wheels, the upper die main rolling wheel is fixedly connected with the upper die rotating shaft, and a second rolling bearing is arranged between the upper die auxiliary rolling wheels and the upper die rotating shaft. The lower die main roller abuts against the lower die main roller, and the lower die auxiliary roller is meshed with the upper die auxiliary roller. According to the anti-scratch roller of the progressive die, the problem that formed workpieces are scratched due to the difference of angular speeds among the rollers of the roller group is solved, so that the surface precision and quality of the workpieces are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould processing technical field especially relates to a continuous mould anti -scratch roller. BACKGROUND

[0002] Continuous die is a type of die used for sheet metal forming processing. Continuous die roller refers to the roller component used in continuous forming die. This kind of roller plays a key role in the process of sheet metal processing, especially when the material needs to be bent, formed or guided. In the continuous die forming process, when the material is placed in the first step of the continuous die, the roller will contact and fix the material, and then the roller will cooperate with other die components to complete the forming process. During the forming process, the roller will rotate continuously to ensure that the material can be smoothly formed and transmitted in the die.

[0003] The existing roller component is composed of a shaft and a roller fixed on the shaft. In order to form the material into a specific shape, the roller group is composed of multiple rollers with different diameters. This way of fixing the shaft and the roller group enhances the stability of the structure to a certain extent and reduces the radial runout. However, because the rollers that make up the roller group have different diameters but the same shaft speed, the angular velocity of each roller will be different, which makes the surface of the workpiece easy to scratch when it passes through the roller group during the forming process, thereby affecting the precision of the workpiece. SUMMARY

[0004] To solve the defects of the prior art, the technical problem to be solved by the utility model is to provide a continuous die anti-scratch roller to solve the problem of scratches on the workpiece after processing caused by the difference in angular velocity between the rollers in the roller group, thereby improving the surface precision and quality of the workpiece.

[0005] To solve the above technical problems, the utility model provides a continuous die anti-scratch roller, which adopts the following technical scheme:

[0006] The continuous mold anti-scratch roller comprises a rack, an upper die and a lower die, the upper die and the lower die are connected with the rack respectively, the upper die and the lower die are engaged with each other, the lower die comprises a lower die rotating shaft and a lower die roller set, the lower die roller set comprises a lower die main roller and two lower die auxiliary rollers, the two lower die auxiliary rollers are symmetrically arranged on both sides of the lower die main roller, the lower die main roller is fixedly connected with the lower die rotating shaft, a first rolling bearing is arranged between the lower die auxiliary roller and the lower die rotating shaft, the inner ring of the first rolling bearing is fixedly connected with the lower die rotating shaft, and the outer ring of the first rolling bearing is fixedly connected with the lower die auxiliary roller, the upper die comprises an upper die rotating shaft and an upper die roller set, the upper die roller set comprises an upper die main roller and two upper die auxiliary rollers, a second rolling bearing is arranged between the upper die auxiliary roller and the upper die rotating shaft, the connection mode of the second rolling bearing, the upper die main roller, the upper die auxiliary roller and the upper die rotating shaft is the same as that of the lower die, the lower die main roller and the upper die main roller abut against each other, and the lower die auxiliary roller and the upper die auxiliary roller are engaged with each other.

[0007] In the original scheme, the rollers in the roller set are often fixedly connected together, and the roller set and the rotating shaft are often fixed by hard connection. In the present scheme, the roller set is divided into a main roller and an auxiliary roller, the main roller is fixed with the rotating shaft, and the auxiliary roller is connected with the rotating shaft by a rolling bearing. Therefore, the rotating speed of the auxiliary roller is no longer dependent on the speed of the rotating shaft, but consistent with the metal plate in the processing process. Specifically, when the metal plate is bent and formed by the upper die roller set and the lower die roller set, the lower die auxiliary roller and the upper die auxiliary roller jointly act to clamp the metal plate, and the two main rollers drive the metal plate forward while the metal plate drives the auxiliary rollers to rotate, so that the metal plate and the auxiliary rollers are relatively stationary in the processing process. Therefore, the surface of the processed workpiece will not be scratched, thereby improving the precision of the workpiece.

[0008] Further, the diameter of the lower die auxiliary roller is different from that of the lower die main roller, the diameter of the upper die auxiliary roller is different from that of the upper die main roller, the lower die auxiliary roller is provided with a first matching part, the upper die auxiliary roller is provided with a second matching part, and the first matching part and the second matching part correspond in shape and are engaged with each other. The design of the diameter difference allows the mold to have higher flexibility when processing different shaped parts. By adjusting the diameter of the auxiliary roller, the overall structure of the mold can be optimized to better adapt to specific processing needs. The first matching part can be a protrusion or a groove, and the second matching part is a groove or a protrusion corresponding to the first matching part. The mutual engagement of the two ensures the accurate positioning of the mold during the processing process, reduces the error caused by the misalignment of the rollers, and helps to maintain the stability of the mold during the processing process, improving the processing precision and product quality.

[0009] As preferred, the lower mold main roller and the upper mold main roller are identical in shape and size. On the one hand, the main rollers identical in shape and size can ensure the height matching precision of the upper and lower molds when closed, and such precise matching helps to reduce the mold gap and improve the surface quality of the processed workpiece. On the other hand, as important components for driving the movement of the workpiece, the identical design means that the upper and lower molds can uniformly distribute the pressure when stressed, reducing the deformation or damage of the molds caused by uneven pressure, and helping to improve the overall stability and durability of the molds.

[0010] As preferred, a plurality of fixing members are further included, and the plurality of fixing members are respectively arranged on both sides of the lower mold roller set and the upper mold roller set, and the fixing members are fixedly connected with the lower mold shaft or the upper mold shaft. The existence of the fixing members can play a limiting role on the roller set, preventing the axial jumping and displacement of the roller set during processing, thereby ensuring the processing quality.

[0011] As preferred, the connection parts of the rack and the lower mold shaft and the upper mold shaft are each provided with a rolling bearing, the outer ring of the rolling bearing is fixedly connected with the rack, and the inner ring of the rolling bearing is connected with the lower mold shaft or the upper mold shaft. Since the rolling friction resistance of the rolling bearing is small, the shaft can rotate more smoothly when rotating, reducing the energy loss. This helps to improve the processing efficiency of the mold, so that the mold can work at a higher speed.

[0012] As preferred, one end of the lower mold shaft and the upper mold shaft is connected with a driving device, and the driving device drives the lower mold shaft and the upper mold shaft to rotate synchronously. Synchronous rotation ensures the precise matching of the upper mold and the lower mold during processing, avoiding misalignment or collision caused by asynchronization, thereby ensuring the smooth processing.

[0013] In summary, the continuous mold anti-scratch roller solves the problem that the processed workpiece is scratched due to the difference in angular velocity between the rollers of the roller set, thereby improving the surface precision and quality of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be explained in further detail in combination with the drawings and specific embodiments.

[0015] Figure 1 is the sectional view of the utility model;

[0016] Figure 2 is the front view of the utility model;

[0017] Figure 3 is the general assembly structure schematic view of the utility model;

[0018] Figure 4 is the sectional view of the original scheme;

[0019] The rack-1, the rolling bearing-11, the upper die-2, the upper die rotating shaft-21, the second rolling bearing-211, the upper die roller set-22, the upper die main roller-221, the upper die auxiliary roller-222, the second matching part-2221, the lower die-3, the lower die rotating shaft-31, the first rolling bearing-311, the lower die roller set-32, the lower die main roller-321, the lower die auxiliary roller-322, the first matching part-3221, the fixing part-4. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples.

[0021] As Figures 1 to 3 shown in a kind of continuous mold scratch-proof roller, including rack 1, upper die 2 and lower die 3, upper die 2 and lower die 3 are connected with rack 1 respectively, upper die 2 and lower die 3 are mutually engaged, lower die 3 includes lower die rotating shaft 31 and lower die roller set 32, lower die roller set 32 includes lower die main roller 321 and two lower die auxiliary rollers 322, two lower die auxiliary rollers 322 are symmetrically arranged in lower die main roller 321 two sides, lower die main roller 321 is fixedly connected with lower die rotating shaft 31, first rolling bearing 311 is arranged between lower die auxiliary roller 322 and lower die rotating shaft 31, the inner ring of first rolling bearing 311 is fixedly connected with lower die rotating shaft 31, the outer ring of first rolling bearing 311 is fixedly connected with lower die auxiliary roller 322, upper die 2 includes upper die rotating shaft 21 and upper die roller set 22, upper die roller set 22 includes upper die main roller 221 and two upper die auxiliary rollers 222, two upper die auxiliary rollers 222 are symmetrically arranged in upper die main roller 221 two sides, upper die main roller 221 is fixedly connected with upper die rotating shaft 21, second rolling bearing 211 is arranged between upper die auxiliary roller 222 and upper die rotating shaft 21, the inner ring of second rolling bearing 211 is fixedly connected with upper die rotating shaft 21, the outer ring of second rolling bearing 211 is fixedly connected with upper die auxiliary roller 222, lower die main roller 321 and lower die main roller 321 are mutually abutted, lower die auxiliary roller 322 and upper die auxiliary roller 222 are mutually engaged.

[0022] As Figure 4As shown, in the original scheme, the rollers in each roller set are often fixedly connected together, and the roller set and the rotating shaft are often fixed by hard connection. In this embodiment, the roller set is divided into a main roller and a secondary roller, and the main roller is fixed with the rotating shaft, while the secondary roller is connected with the rotating shaft by a rolling bearing. In this way, the rotating speed of the secondary roller is no longer dependent on the speed of the rotating shaft, but is consistent with the metal plate during processing. Specifically, when the metal plate is bent and formed by the upper die roller set 22 and the lower die roller set 32, the lower die secondary roller 322 and the upper die secondary roller 222 will jointly act to clamp the metal plate, and the two main rollers will drive the metal plate forward while the metal plate will also drive the secondary roller to rotate, so that the metal plate is relatively stationary with the secondary roller during processing. Therefore, the surface of the processed workpiece will not be scratched, thereby improving the precision of the workpiece.

[0023] Further, the diameter of the lower die secondary roller 322 is different from that of the lower die main roller 321, and the diameter of the upper die secondary roller 222 is different from that of the upper die main roller 221. The lower die secondary roller 322 is provided with a first matching part 3221, and the upper die secondary roller 222 is provided with a second matching part 2221. The first matching part 3221 and the second matching part 2221 correspond in shape and mesh with each other. The design of the diameter difference allows the mold to have higher flexibility when processing different shaped parts. With this design, by adjusting the diameter of the secondary roller, the overall structure of the mold can be optimized to better adapt to specific processing needs. The first matching part 3221 can be a protrusion or a groove, and the second matching part 2221 is a groove or a protrusion corresponding to the first matching part. The mutual engagement of the two ensures accurate alignment of the mold during processing, reduces errors caused by misalignment of the rollers, and helps to maintain the stability of the mold during processing, improving processing precision and product quality.

[0024] As a preferred embodiment, the lower die main roller 321 and the upper die main roller 221 are the same in shape and size. On the one hand, the main rollers of the same shape and size can ensure that the upper and lower molds achieve high matching precision when closed. This precise fit helps to reduce mold gaps and improve the surface quality of the processed workpiece. On the other hand, as important components for driving the movement of the workpiece, the same design means that the upper and lower molds can evenly distribute pressure when under stress, reducing mold deformation or damage caused by uneven pressure, and helping to improve the overall stability and durability of the mold.

[0025] As a preferred embodiment, a plurality of fixing members 4 are further included, which are respectively arranged on both sides of the lower die roller set 32 and the upper die roller set 22, and are fixedly connected with the lower die rotating shaft 31 or the upper die rotating shaft 21. The presence of the fixing members 4 can limit the roller set and prevent axial jumping and displacement of the roller set during processing, thereby ensuring the quality of processing.

[0026] As preferred, the connection between the frame 1 and the lower die shaft 31 and the upper die shaft 21 is provided with a rolling bearing 11, the outer ring of the rolling bearing 11 is fixedly connected with the frame 1, and the inner ring of the rolling bearing 11 is connected with the lower die shaft 31 or the upper die shaft 21. Since the rolling friction resistance of the rolling bearing 11 is small, the shaft can rotate more smoothly, and the energy loss is reduced. This helps to improve the processing efficiency of the mold, so that the mold can work at a higher speed.

[0027] As preferred, one end of the lower die shaft 31 and the upper die shaft 21 is connected with a driving device, and the driving device drives the lower die shaft 31 and the upper die shaft 21 to rotate synchronously. Synchronous rotation ensures the accurate cooperation of the upper die 2 and the lower die 3 during processing, avoids misalignment or collision due to asynchronization, and thus ensures smooth processing.

[0028] In summary, the continuous mold anti-scratch roller solves the problem that the difference in angular velocity between the rollers of the roller set causes scratches on the processed workpiece, thereby improving the surface precision and quality of the workpiece.

[0029] In summary, the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A continuous die anti-scratch roller, comprising a frame (1), an upper die (2), and a lower die (3), wherein the upper die (2) and the lower die (3) are respectively connected to the frame (1), and the upper die (2) and the lower die (3) mesh with each other, characterized in that: The lower die (3) comprises a lower die rotating shaft (31) and a lower die roller set (32), the lower die roller set (32) comprises a lower die main roller (321) and two lower die auxiliary rollers (322), the two lower die auxiliary rollers (322) are symmetrically arranged on both sides of the lower die main roller (321), the lower die main roller (321) is fixedly connected with the lower die rotating shaft (31), a first rolling bearing (311) is arranged between the lower die auxiliary roller (322) and the lower die rotating shaft (31), the inner ring of the first rolling bearing (311) is fixedly connected with the lower die rotating shaft (31), and the outer ring of the first rolling bearing (311) is fixedly connected with the lower die auxiliary roller (322), the upper die (2) comprises an upper die rotating shaft (21) and an upper die roller set (22), the upper die roller set (22) comprises an upper die main roller (221) and two upper die auxiliary rollers (222), a second rolling bearing (211) is arranged between the upper die auxiliary roller (222) and the upper die rotating shaft (21), the connection mode of the second rolling bearing (211), the upper die main roller (221), the upper die auxiliary roller (222) and the upper die rotating shaft (21) is the same as that of the lower die (3), the lower die main roller (321) and the upper die main roller (221) abut against each other, and the lower die auxiliary roller (322) and the upper die auxiliary roller (222) are engaged with each other.

2. The continuous-die damage-preventing roller according to claim 1, characterized by: The diameters of the lower die auxiliary roller (322) and the lower die main roller (321) are different, the diameters of the upper die auxiliary roller (222) and the upper die main roller (221) are different, the lower die auxiliary roller (322) is provided with a first matching part (3221), the upper die auxiliary roller (222) is provided with a second matching part (2221), and the first matching part (3221) and the second matching part (2221) are in correspondence and engaged with each other.

3. The continuous-die damage-preventing roller according to claim 2, characterized by: The lower die main roller (321) and the upper die main roller (221) are the same in shape and size.

4. The continuous-die damage-preventing roller according to claim 1, characterized by: A plurality of fixing members (4) are arranged on both sides of the lower die roller set (32) and the upper die roller set (22), and the fixing members (4) are fixedly connected with the lower die rotating shaft (31) or the upper die rotating shaft (21).

5. The continuous-die damage-preventing roller according to claim 1, characterized by: Rolling bearings (11) are arranged at the connection positions of the machine frame (1) and the lower die rotating shaft (31) and the upper die rotating shaft (21), the outer rings of the rolling bearings (11) are fixedly connected with the machine frame (1), and the inner rings of the rolling bearings (11) are connected with the lower die rotating shaft (31) or the upper die rotating shaft (21).

6. The continuous-die damage-preventing roller according to claim 5, characterized by: One end of the lower die rotating shaft (31) and the upper die rotating shaft (21) is connected with a driving device, and the driving device can drive the lower die rotating shaft (31) and the upper die rotating shaft (21) to rotate synchronously.

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