Edge pressing roller, roller assembly and edge pressing machine
Through hollow curved edge rolls and bearing support structures, the pollution and damage of the non-edge metal materials by existing edge pressing equipment is solved, and accurate edge extrusion and high-quality processing effects are achieved.
Patent Information
- Application Number
- CN202421737598.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing flat roll edge pressing equipment is prone to contamination or damage to the non-edges of the metal material during the edge pressing process, and it is difficult to achieve accurate edge pressing.
An arc-shaped crimping roller with hollow structure is adopted. The axes of the two crimping rollers are arranged in parallel, with the diameter of the middle part being the largest, and the other parts gradually decrease, forming a separation angle to avoid non-edge contact, and are connected by bearings and support shafts for stable rotation.
Accurate extrusion of the edges of metal materials is achieved, reducing contact at non-edges, avoiding pollution and damage, ensuring the surface of the material is clean and tidy, and improving processing quality and accuracy.
Smart Images
Figure CN223129052U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rolling of metal material processing, in particular to a blank holder roll, a roll assembly and a blanking press. Background Art
[0002] With the continuous improvement of the market's requirements for the processing quality of metal materials, the forming and appearance quality of the material boundary in the finished product processing are becoming increasingly important. Special blanking equipment is required to blank the material boundary. The current blanking equipment includes two blank holder rolls. The metal material passes through the two blank holder rolls, and the two blank holder rolls blank the material boundary, so as to beautify the edge of the material and prevent the edge of the material from having sharp edges.
[0003] However, the current blank holder roll is a flat roll. The so-called flat roll means that the diameters of all parts on the circumferential surface of the blank holder roll are the same, and the axial direction of the circumferential surface of the roll is a straight line. In this way, when the material edge passes through the two blank holder rolls, the contact extrusion area between the circumferential surface of the blank holder roll and the material is large, and the circumferential surface of the blank holder roll is likely to extrude the non-edge part of the material, resulting in the non-edge part of the material being contaminated due to contact with the blank holder roll, or the non-edge part of the metal material being extruded by the blank holder roll to form damage. Summary of the Utility Model
[0004] The utility model aims to provide a blank holder roll, a roll assembly and a blanking press, so as to realize more accurate extrusion of the edge of the metal material, reduce or avoid the contamination of the material caused by the contact of the non-edge part of the material with the blank holder roll, or the damage caused by the extrusion of the non-edge part of the metal material by the blank holder roll.
[0005] To achieve the above object, the utility model adopts the following technical scheme: a blank holder roll, the blank holder roll is of a hollow structure; the circumferential side surface of the blank holder roll is arc-shaped, and the diameter of the blank holder roll gradually decreases from the middle of the blank holder roll to the end of the blank holder roll.
[0006] In addition, the present application also discloses a roll assembly, including the above-mentioned blank holder roll; the number of the blank holder rolls is two, the two blank holder rolls are arranged oppositely, and the axes of the two blank holder rolls are arranged in parallel.
[0007] In addition, the present application also discloses a blanking press, including a frame, and the above-mentioned roll assembly is arranged on the frame.
[0008] The principle and advantages of the solution of the present application are as follows: 1. The blank holder roll in the present application is of a hollow structure. The hollow structure design can reduce its weight, making its own weight lighter, easier to rotate, and more labor-saving to rotate.
[0009] 2. The circumferential side of the edge pressing roller in this application is arc-shaped, and the roller body of the edge pressing roller is an arc. When the metal material passes between the two edge pressing rollers, the edge of the metal material passes through the middle of the edge pressing roller. Since the diameter of the middle of the edge pressing roller is the largest, the middle of the edge pressing roller can make good contact and extrusion with the edge of the metal material. However, the diameters of other parts of the circumferential side of the edge pressing roller are smaller, so the gap between other parts of the two edge pressing rollers (this gap is the separation angle of the two edge pressing rollers) is larger. Other parts of the circumferential side of the edge pressing roller except the middle part will not make contact and extrusion with other parts of the metal material, so that the edge of the metal material can be accurately extruded, the effective contact area can be precisely controlled, and the extrusion part will not involve other parts outside the edge of the metal material, ensuring the quality and precision of the processed material.
[0010] 3. When the two edge pressing rollers extrude the metal edge, the separation angle formed by the two edge pressing rollers can accommodate foreign objects, preventing foreign objects and dirt from being extruded onto the metal material by the edge pressing rollers and causing damage, and ensuring the cleanliness of the metal material surface.
[0011] Preferably, as an improvement, bearings and support shafts are installed inside both of the two edge pressing rollers; the outer ring of the bearing is connected to the inner wall of the edge pressing roller, and the support shaft is connected to the inner ring of the bearing.
[0012] Thus, the support shaft is used to support the edge pressing roller. However, since the edge pressing roller is a hollow structure, the support shaft cannot be directly connected to the edge pressing roller, and the edge pressing roller is connected to the support shaft through the bearing. In this solution, the edge pressing roller is rotated on the support shaft through the bearing.
[0013] Preferably, as an improvement, the end of the edge pressing roller is covered with an end cover, and the end cover is connected to the support shaft;
[0014] Among them, the end cover is fixedly connected to the edge pressing roller, and the end cover is rotatably connected to the support shaft; or,
[0015] the end cover is rotatably connected to the edge pressing roller, and the end cover is fixedly connected to the support shaft; or,
[0016] the end cover is rotatably connected to the edge pressing roller, and the end cover is rotatably connected to the support shaft.
[0017] Thus, in this solution, by setting the end cover connected to the support shaft, the end cover is used to laterally limit the edge pressing roller, preventing the edge pressing roller from axially moving and disengaging from the support shaft during the rotation on the support shaft, making the rotation of the edge pressing roller on the support shaft more stable.
[0018] The end cap in this application can be fixedly connected to the end of the crimping roller (here, "fixedly connected" means that the end cap and the crimping roller cannot rotate relative to each other, and when the crimping roller rotates, the end cap rotates together). At this time, the end cap is rotatably connected to the support shaft (here, "rotatably connected" means that the end cap can rotate on the support shaft, but the end cap is fixed in the axial direction of the support shaft). In this way, when the crimping roller rotates, the end cap and the support shaft will not be fixedly locked.
[0019] Alternatively, the end cap of this application is fixedly connected to the support shaft (here, "fixedly connected" means that the end cap and the support shaft cannot rotate relative to each other, and at the same time the end cap is fixed in the axial direction of the support shaft). At this time, the end cap is rotatably connected to the crimping roller. In this way, when the crimping roller rotates, the end cap will not be fixedly locked to the crimping roller, and the end cap will not affect the rotation of the crimping roller.
[0020] Alternatively, the end cap of this application is rotatably connected to the crimping roller and rotatably connected to the support shaft (here, "rotatably connected" means that the end cap can rotate on the support shaft, but the end cap is fixed in the axial direction of the support shaft). At this time, when the crimping roller rotates, the end cap will not hinder the normal rotation of the crimping roller.
[0021] Preferably, as an improvement, the end cap and the support shaft are connected by screws or bolts.
[0022] Preferably, as an improvement, the number of bearings inside each crimping roller is at least two, and at least two bearings are respectively located at both ends of the crimping roller.
[0023] Thus, at least two bearings are located at both ends of the crimping roller, so as to stably support the crimping roller, and the crimping roller rotates more stably on the support shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic structural diagram of a crimping machine.
[0025] Figure 2 It is a schematic structural diagram of another crimping machine. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The following is further detailed through specific embodiments:
[0027] The reference numerals in the accompanying drawings of the specification include: frame 1, mounting hole 2, first crimping roller 3, second crimping roller 4, first bearing 5, second bearing 6, third bearing 7, fourth bearing 8, first connecting member 9, second connecting member 10, first support shaft 11, second support shaft 12, limiting member 13, vertical rod 14, tension spring 15, bracket 16, separation angle 17, support block 18.
[0028] Embodiment 1
[0029] Basically as shown in the attached Figure 1As shown: This embodiment discloses a flanging machine, which includes a frame 1 and a roller assembly. The roller assembly includes two flanging rollers, which are respectively a first flanging roller 3 and a second flanging roller 4. The first flanging roller 3 is located above the second flanging roller 4, and the axes of the first flanging roller 3 and the second flanging roller 4 are parallel.
[0030] In this embodiment, the first flanging roller 3 and the second flanging roller 4 have the same shape and structure, and both the first flanging roller 3 and the second flanging roller 4 are hollow structures; the circumferential sides of the first flanging roller 3 and the second flanging roller 4 are both arc-shaped. The diameter of the flanging roller gradually decreases from the middle of the flanging roller to the end of the flanging roller. Figure 1 In the middle, the middle parts of the first flanging roller 3 and the second flanging roller 4 are in contact with each other or there is a gap for the metal material to pass through between the middle parts of the first flanging roller 3 and the second flanging roller 4, and there is a gap between the ends of the two flanging rollers to form a separation angle 17.
[0031] In this embodiment, bearings and support shafts are installed inside both of the two flanging rollers; the outer ring of the bearing is connected to the inner wall of the flanging roller, and the support shaft is connected to the inner ring of the bearing. Specifically, a first bearing 5 and a second bearing 6 are provided inside the first flanging roller 3. The first bearing 5 and the second bearing 6 are respectively located at both ends of the first flanging roller 3. The outer rings of the first bearing 5 and the second bearing 6 are both connected to the inner wall of the first flanging roller 3. The connection method can be interference connection, or connection by pins or keys. A first support shaft 11 is connected between the inner rings of the first bearing 5 and the second bearing 6. The connection method can be interference connection, or connection by pins or keys. A third bearing 7 and a fourth bearing 8 are provided inside the second flanging roller 4. A second support shaft 12 is connected between the inner rings of the third bearing 7 and the fourth bearing 8. The connection method of the bearings inside the second flanging roller 4 and the setting method of the support shaft are the same as those of the bearings inside the first flanging roller 3. Therefore, the connection method of the bearings inside the second flanging roller 4 and the connection setting method of the second support shaft 12 will not be described in detail here.
[0032] In this embodiment, mounting holes 2 are provided on the frame 1. The mounting holes 2 are used for fixing bolts to pass through for fixation, so as to facilitate the fixation of the frame 1. Two brackets 16 are fixedly provided (such as welded) on the frame 1. The right ends of the first support shaft 11 and the second support shaft 12 are respectively connected to the two brackets 16 (such as welded or integrally connected).
[0033] Thus, a metal material (such as an aluminum plate) passes between the first edge pressing roller 3 and the second edge pressing roller 4, causing the edge of the metal material to pass between the middle of the circumferential side surface of the first edge pressing roller 3 and the middle of the circumferential side surface of the second edge pressing roller 4. The first edge pressing roller 3 and the second edge pressing roller 4 rotate, and the middle of the circumferential side surface of the first edge pressing roller 3 and the middle of the circumferential side surface of the second edge pressing roller 4 squeeze the edge of the metal material, thereby achieving edge pressing.
[0034] Meanwhile, the gap between other parts of the two edge pressing rollers except the middle part is relatively large, that is, the other parts of the metal material are not contact-squeezed at the separation angle 17, thereby achieving precise squeezing of the edge of the metal material, precisely controlling the effective contact area, and ensuring the quality and precision of the processed material.
[0035] In this embodiment, when the two edge pressing rollers squeeze the metal edge, the separation angle 17 formed by the two edge pressing rollers can accommodate foreign objects, preventing foreign objects and dirt from being squeezed onto the metal material to cause damage, and ensuring the cleanliness of the metal material surface.
[0036] In addition, during the rotation of the first edge pressing roller 3 and the second edge pressing roller 4, in order to prevent the first edge pressing roller 3 and the second edge pressing roller 4 from disengaging from the left ends of the first support shaft 11 and the second support shaft 12 respectively. In this embodiment, end caps are covered on the left ends of the first edge pressing roller 3 and the second edge pressing roller 4, and the end caps are connected to the corresponding support shafts. Specifically, for example, the end cap covers the left end of the edge pressing roller, and the end cap is fixedly connected to the edge pressing roller (the fixed connection here means that the end cap and the edge pressing roller cannot rotate relative to each other, for example, the left end of the end cap and the edge pressing roller are connected by bolts), and the end cap is rotatably connected to the support shaft (a shaft hole is provided on the end cap, and the corresponding support shaft passes through the shaft hole of the end cap, and the end cap can rotate on the corresponding support shaft). A connecting piece is fixed at the end of the corresponding support shaft (the first connecting piece 9 is fixed at the left end of the first support shaft 11, and the second connecting piece 10 is fixed at the left end of the second support shaft 12). The connecting piece can specifically be a pin, a bolt or a screw, and the connecting piece abuts against the outer wall of the end cap. Thus, during the rotation of the first edge pressing roller 3 and the second edge pressing roller 4, the end cap on the edge pressing roller rotates on the corresponding support shaft, and the connecting piece laterally limits the end cap, preventing the end cap from moving leftward, and the connecting piece can prevent the edge pressing roller from moving leftward and disengaging from the corresponding support shaft.
[0037] Alternatively, in other embodiments, the connection arrangement of the end cap can also be as follows: The end cap is rotatably connected to the crimping roller (for example, the end cap only abuts against the left end of the crimping roller without being fixed, and relative rotation can occur between the crimping roller and the end cap), and the end cap is fixedly connected to the support shaft. Here, the fixed connection means that the end cap and the support shaft are fixed together and the end cap cannot rotate. For example, they are fixedly connected through a connecting member. The connecting member (a first connecting member 9 is fixed to the left end of the first support shaft 11, and a second connecting member 10 is fixed to the left end of the second support shaft 12) can specifically be a bolt or a screw. By tightening the connecting member, the end cap is fixed to the left end of the corresponding support shaft. Thus, during the rotation of the first crimping roller 3 and the second crimping roller 4, the end of the crimping roller rotates relative to the end cap, and the end cap prevents the crimping roller from moving leftward and detaching from the corresponding support shaft.
[0038] Alternatively, in other embodiments, the end cap is rotatably connected to the crimping roller, and the end cap is rotatably connected to the support shaft. At this time, the end cap is installed on the corresponding support shaft through a connecting member. The connecting member is not tightened, the end cap can rotate but cannot move laterally, and the end cap and the crimping roller are not fixedly connected, and relative rotation can occur between the end cap and the crimping roller. At this time, during the rotation of the crimping roller, the end cap can prevent the crimping roller from moving leftward and detaching from the corresponding support shaft.
[0039] Of course, in other embodiments, the connecting member is not limited to the above description. Any component that can fix the end cap and the support shaft and prevent the end cap from detaching from the support shaft can be regarded as a connecting member.
[0040] In this embodiment, since Figure 1 In, the left ends of the first support shaft 11 and the second support shaft 12 are both free ends, and there is no structure at the left ends of the first support shaft 11 and the second support shaft 12 to block the crimping roller (the right ends of the first support shaft 11 and the second support shaft 12 have a frame 1 to prevent the crimping roller from moving rightward). Therefore, it is preferred to limit the crimping roller at the left ends of the first support shaft 11 and the second support shaft 12 in the above manner and structure to prevent the crimping roller from moving leftward and detaching from the corresponding support shaft. Of course, in other embodiments, an end cap can also be provided at the right end of the crimping roller, and a limit pin (the limit pin is radially inserted into the corresponding support shaft) can be installed on the two support shafts. The limit pin is located on the right side of the right end cap of the crimping roller to limit the right end cap and prevent the crimping roller from moving rightward. In this way, the crimping roller can be stably limited by the left and right end caps and cannot move left or right.
[0041] Embodiment 2
[0042] This embodiment is a further improvement based on Embodiment 1. An elastic device for making the first edge pressing roller 3 and the second edge pressing roller 4 approach each other is provided on the frame 1. The elastic device includes an elastic member, and the two edge pressing rollers approach each other under the elastic force of the elastic member.
[0043] For the elastic member, a tension spring 15 is selected in this embodiment. The tension spring 15 is connected between the first support shaft 11 and the second support shaft 12. The connection manner between the end of the tension spring 15 and the corresponding support shaft can specifically be welding, hooking, or fixing by screws. Thus, under the pulling force of the tension spring 15, the first support shaft 11 and the second support shaft 12 cause the two edge pressing rollers to approach each other. When the metal material passes through the two edge pressing rollers, the two edge pressing rollers press the edge of the metal material under the elastic force of the tension spring 15.
[0044] Moreover, the tension spring 15 can stretch and contract. When the thickness of the metal sheet passing between the two edge pressing rollers is not uniform (for example, the average thickness of the metal material is 1 mm, but the thickness of some local parts at the edge may be 1.2 mm, and the thickness of some local parts at the edge is 0.8 mm), the distance between the two edge pressing rollers can be automatically adjusted. When the thick part of the metal material passes through, the distance between the first edge pressing roller 3 and the second edge pressing roller 4 automatically becomes larger, and the tension spring 15 is stretched. When the thin part of the metal material passes through, the distance between the first edge pressing roller 3 and the second edge pressing roller 4 automatically becomes smaller under the action of the tension spring 15, so as to adapt to the edge pressing of the metal material with uneven thickness.
[0045] Certainly, in other embodiments, for the elastic member, a compression spring pressing downward can be further provided above the first support shaft 11, and a compression spring pressing upward can be further provided below the second support shaft 12.
[0046] Embodiment 3
[0047] This embodiment further limits on the basis of Embodiment 1. The maximum distance between the first edge pressing roller 3 and the second edge pressing roller 4 is adjustable, that is, the maximum thickness of the metal material allowed to pass through is adjustable. The specific adjustment method is as follows: Vertical rod holes are provided on both the first support shaft 11 and the second support shaft 12. A vertical rod 14 passes through the rod holes of the first support shaft 11 and the second support shaft 12. Limit members 13 are threadedly connected to the top and bottom of the vertical rod 14. The limit members 13 can specifically be bolts, screws (when using screws or bolts, threaded holes are provided at the ends of the vertical rod 14), or nuts. By rotating the limit members 13, the position adjustment of the limit members 13 is realized. In this embodiment, nuts threadedly connected to the vertical rod 14 are preferably used. The maximum distance between the first support shaft 11 and the second support shaft 12 can be limited by the limit members 13 at both ends of the vertical rod 14, so that the edge pressing machine can only perform edge pressing on metal materials within the maximum thickness.
[0048] For example, the average thickness of the metal material crimped in the previous batch is 1 mm. When the average thickness of the metal material in the current batch becomes 3 mm, the upper limit member 13 needs to be adjusted upward or the lower limit member 13 needs to be adjusted downward (the upper limit member 13 and the lower limit member 13 can be adjusted simultaneously or only one of them can be adjusted). In this way, the distance between the two limit members 13 becomes larger, and the maximum distance between the first support shaft 11 and the second support shaft 12 can become larger. When a thicker metal material passes between the two crimping rollers, the distance between the first support shaft 11 and the second support shaft 12 can become even larger, so that the two crimping rollers can crimp the thicker metal material.
[0049] Again, for example, the average thickness of the metal material crimped in the previous batch is 1 mm. When the average thickness of the metal material in the current batch becomes 0.5 mm, the upper limit member 13 needs to be adjusted downward or the lower limit member 13 needs to be adjusted upward (the upper limit member 13 and the lower limit member 13 can be adjusted simultaneously or only one of them can be adjusted). In this way, the distance between the two limit members 13 becomes smaller. The two limit members respectively limit the two support shafts, and the maximum distance between the first support shaft 11 and the second support shaft 12 becomes smaller, so that the two crimping rollers can adapt to crimp the metal material with a thinner thickness.
[0050] Example 4
[0051] Combine Example 2 and Example 3. The tension spring 15 is sleeved outside the vertical rod 14. Thus, the vertical rod 14 also plays a role in limiting and guiding the deformation of the tension spring 15. The existence of the tension spring 15 makes the first support shaft 11 and the second support shaft 12 have a force to approach each other. In this way, when the material passes between the two crimping rollers and makes the first support shaft 11 abut against the upper limit member 13 and the second support shaft 12 abut against the lower limit member 13, it has a buffering effect.
[0052] Thus, usually, the two crimping rollers abut against each other under the pulling force of the tension spring 15. When crimping, as long as the thickness of the metal material does not exceed the maximum clearance distance between the two crimping rollers, it is okay. In this way, when a thicker metal material passes between the two crimping rollers, the tension spring 15 stretches, and the distance between the two crimping rollers becomes larger, so as to crimp the metal material with a larger thickness. When a thinner metal material passes between the two crimping rollers, the two crimping rollers can still press on the edge of the thinner metal material under the pulling force of the tension spring 15. In this way, this crimping machine can automatically adjust the distance between the two crimping rollers, so as to adapt to crimp metal materials with different thicknesses.
[0053] Although the right ends of the first support shaft 11 and the second support shaft 12 in the above-described Embodiments 2-4 are fixedly connected to the bracket 16, the portion where the bracket 16 is connected to the support shaft can undergo elastic deformation (similar to the torsion beam of an automobile that can deform), so that the distance between the first support shaft 11 and the second support shaft 12 can be changed, thereby adapting to materials of different thicknesses passing between the two crimping rollers.
[0054] Of course, in other embodiments of the above-described Embodiments 2-4, the right ends of the first support shaft 11 and the second support shaft 12 can also be slidably connected to the frame 1. At this time, the bracket 16 is omitted. As shown in combination with Figure 2 Figure, a support block 18 is welded to the left side of the frame 1. A vertical chute is provided on the left side surface of the support block 18. The top view shape of the chute is T-shaped. T-shaped sliders are provided at the right ends of the first support shaft 11 and the second support shaft 12. The sliders are located in the chute and can slide vertically. In this way, neither the first support shaft 11 nor the second support shaft 12 is fixedly connected to the frame 1. When materials of different thicknesses pass between the two crimping rollers, the first support shaft 11 and the second support shaft 12 can move vertically, so as to adapt to the crimping of materials of different thicknesses. The vertical position adjustment of the first support shaft 11 and the second support shaft 12 is smoother.
[0055] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.
Claims
1. A hemming roller, characterized in that: The edge pressing roller is of a hollow structure; the circumferential side surface of the edge pressing roller is arc-shaped, and the diameter of the edge pressing roller gradually decreases from the middle of the edge pressing roller to the end of the edge pressing roller.
2. Roller assembly, characterized in that: It includes the edge pressing roller in Claim 1; the number of edge pressing rollers is two, the two edge pressing rollers are arranged oppositely, and the axes of the two edge pressing rollers are arranged parallel to each other.
3. The roller assembly according to claim 2, wherein: Bearings and support shafts are installed inside both of the two edge pressing rollers; the outer ring of the bearing is connected to the inner wall of the edge pressing roller, and the support shaft is connected to the inner ring of the bearing.
4. The roller assembly according to claim 3, characterized in that: An end cover covers the end of the edge pressing roller, and the end cover is connected to the support shaft; wherein, the end cover is fixedly connected to the edge pressing roller, and the end cover is rotatably connected to the support shaft; or, the end cover is rotatably connected to the edge pressing roller, and the end cover is fixedly connected to the support shaft; or, the end cover is rotatably connected to the edge pressing roller, and the end cover is rotatably connected to the support shaft.
5. The roller assembly according to claim 4, characterized in that: The end cover and the support shaft are connected by screws or bolts.
6. The roller assembly according to claim 3, characterized in that: The number of bearings inside each edge pressing roller is at least two, and at least two bearings are respectively located at both ends of the edge pressing roller.
7. Flanging machine, comprising a frame, characterized in that: The roller assembly according to any one of Claims 2-6 is provided on the frame.
8. The blank holder press according to claim 7, characterized in that: The maximum distance between the two edge pressing rollers is adjustable.
9. The blank holder press according to claim 7, characterized in that: An elastic device for making the two edge pressing rollers approach each other is provided on the frame.
10. The blank holder press according to claim 9, wherein: The elastic device includes an elastic member, and the two edge pressing rollers approach each other under the elastic force of the elastic member.