A device for removing burrs from the side of precious metal composite strip

Abstract

The utility model discloses a device for deburring the side of a precious metal composite strip, which relates to the technical field of deburring devices, and includes a conveying component and a cutting device. The conveying component is used to convey the precious metal composite strip in a straight line. The cutting device is located on the conveying route of the precious metal composite strip. The cutting device includes a cutting knife, which is arranged on the side of the conveyed precious metal composite strip. The cutting knife has a blade portion for cutting the side of the precious metal composite strip. The side of the cutting knife away from the conveying end of the precious metal composite strip is provided with a C-shaped chip removal groove, and the C-shaped chip removal groove is arranged close to the blade portion. The movement of the strip is pulled by the rotation generated by the conveying component. When the strip passes through the cutting knife of the cutting device, the excess part of the side of the strip will be removed by the cutting knife, and the generated cutting waste will be discharged and dropped along the curved surface of the C-shaped chip removal groove, which can make the side of the precious metal composite strip more uniform, improve the consistency of the product appearance, and ensure the stability of the electrical performance.

Description

Technical Field

[0001] The utility model relates to the technical field of deburring devices, in particular to a side deburring device for a precious metal composite strip. Background Art

[0002] Special-shaped contact composite strips are currently the mainstream contacts for low-voltage electrical appliances. They are generally made of two or more materials. There are many ways to compound them, such as hot compounding, cold compounding, resistance seam welding, etc. Due to the inconsistency of the physical properties of the materials, the elongation coefficients of the materials are also different during the compounding process, which will cause large differences in the lateral extension of the materials. In order to ensure that the product width is consistent, the conventional method currently used is longitudinal shearing and stripping. After longitudinal shearing and stripping, the product width consistency is qualified, but another problem arises at the same time. The soft precious metal will cover the hard precious metal, resulting in an uneven distribution of the precious metal layer of the special-shaped contact strip, affecting the electrical performance and increasing the material cost.

[0003] Patent with authorization announcement number CN216028524U, a simple burr removal knife for composite narrow strips, the knife comprises a blade, a cutting channel is arranged on the blade, at least one grinding bevel is arranged on the blade, the grinding bevel is located at the channel opening of the cutting channel, each side of the channel opening of the cutting channel on the grinding bevel is sharpened to form a cutting edge, the cutting edge can cut the burrs on the bottom edge of both sides of the narrow strip when the narrow strip passes through the cutting channel, the knife of the utility model can remove the structural burrs generated on the bottom edge of the composite narrow strip after composite processing through the cutting edge, solve the product surface quality problem caused by the burrs, improve the appearance and surface roughness of the composite contact strip product, the knife structure is simple, easy to process, and has high economic benefits. However, it mainly removes the burrs at the four corners of the cross section of the composite strip, and the burrs on the side of the material cannot be removed.

[0004] Patent with authorization announcement number CN206373446U, the utility model discloses a composite strip deburring device, including a positioning frame fixed to a work surface, a wire drawing hole is provided on the positioning frame, a mold fixing device is fixed at the wire drawing hole of the positioning frame, a round mold fixture is fixed on the mold fixing device, and a cutting tool is provided in the round mold fixture. The utility model is based on a wire drawing machine, and cooperates with a cutting mold corresponding to the product to simply and effectively remove the flash of the strip without damaging other characteristics of the strip, thereby improving production efficiency and product quality. However, it mainly removes burrs at the four corners of the cross section of the composite strip, and the burrs on the side of the material cannot be removed.

[0005] Therefore, how to solve the problem of uneven distribution of precious metal layer and burrs on the side of special-shaped contact strips in the prior art has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0006] The utility model aims to overcome the shortcomings and deficiencies of the prior art and to provide a device for removing burrs from the side of a precious metal composite strip.

[0007] The technical solution adopted by the utility model is as follows: a device for deburring the side of a precious metal composite strip, comprising a conveying assembly and a cutting device, wherein the conveying assembly is used to convey the precious metal composite strip in a straight line direction;

[0008] The cutting device is located on the conveying route of the precious metal composite strip, and the cutting device includes a cutting blade, which is arranged on the side of the conveyed precious metal composite strip, and the cutting blade has a blade portion for cutting the side of the precious metal composite strip, and a chip removal groove is arranged on the side of the cutting blade away from the conveying end of the precious metal composite strip, and the chip removal groove is arranged close to the blade portion;

[0009] The chip removal groove is C-shaped.

[0010] Preferably, the cutting knife is a stainless steel knife.

[0011] Preferably, the conveying assembly includes an unwinding section located at the front end of the cutting device and a rewinding section located at the end of the cutting device, the unwinding section includes a first frame, a magnetic powder clutch, and a magnetic powder brake, the rewinding section includes a second frame and a rewinding drive device, and the rewinding drive device is arranged on the second frame.

[0012] Preferably, the cutting device is provided with a limiting portion, which includes a first limiting group and a second limiting group, the first limiting group includes at least two guide rollers respectively acting on the side surfaces of the precious metal composite strip, and the second limiting group includes at least two guide rollers respectively acting on the upper and lower surfaces of the precious metal composite strip.

[0013] Preferably, the cutting device is provided with a straightening part, the straightening part is provided with a straightening assembly, the straightening assembly includes two layers of first rollers respectively arranged on the upper and lower sides of the precious metal composite strip, each layer is provided with a plurality of first rollers, and the two layers of first rollers are staggered, and the first rollers roll in contact with the surface of the precious metal composite strip.

[0014] Preferably, the cutting device is provided with a limiting portion, the limiting portion includes a first limiting group, the first limiting group includes at least two guide rollers respectively acting on the side surfaces of the precious metal composite strip, the first limiting group includes two groups and the two groups are respectively arranged on both sides of the straightening portion.

[0015] Preferably, the cutting device comprises at least two groups of cutting knives distributed on both sides of the precious metal composite strip, and a second roller is provided on the opposite side of each cutting knife, and the second roller forms a thrust towards the cutting knife on the precious metal composite strip; the second roller is connected to a position adjustment device, and the distance between the second roller and the cutting knife on the opposite side thereof is adjusted by the position adjustment device.

[0016] The beneficial effects of the utility model are as follows: the precious metal composite strip is conveyed in a straight line by the rotational traction generated by the conveying component, and the side of the precious metal composite strip is cut in cooperation with the cutting knife arranged on the side of the conveyed precious metal composite strip. When the precious metal composite strip passes through the cutting knife of the cutting device, the excess part of the side of the precious metal composite strip will be removed by the cutting knife, and the generated cutting waste will be discharged and fall along the C-shaped chip removal groove surface, which can make the side of the precious metal composite strip more uniform, improve the consistency of the product appearance, and ensure the stability of the electrical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0018] Figure 1 It is a top view of a device for deburring the side of a precious metal composite strip of the utility model, wherein the direction indicated by arrow A is the conveying direction of the precious metal composite strip;

[0019] Figure 2 It is a front view of the cutting device in the utility model, wherein the direction indicated by arrow A is the conveying direction of the precious metal composite strip;

[0020] Figure 3 yes Figure 1 The enlarged structural diagram at B in the middle, where the direction indicated by arrow A is the conveying direction of the precious metal composite strip;

[0021] Figure 4 This is a schematic diagram of the precious metal composite strip before and after deburring in the utility model;

[0022] In the figure, 1-cutting knife, 2-blade part, 3-chip removal groove, 4-first frame, 5-magnetic powder clutch, 6-magnetic powder brake, 7-second frame, 8-retracting drive device, 9-first limit group, 10-second limit group, 11-straightening part, 12-first roller, 13-second roller, 14-U-shaped straightening frame, 15-L-shaped metal block, 16-platform. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0024] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0025] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0026] like Figures 1 to 3 As shown, the utility model is based on a composite special-shaped strip, which is composited with two materials, AgNi10 and Cu, and is stripped in a V-shaped manner to obtain a product with a width Y of 3.87 mm and a thickness T of 1.5 mm. It is a specially made device for deburring the side of a precious metal composite strip. The device has a total length of 280 mm, a height of 80 mm, and a width of 65 mm, and includes a conveying component and a cutting device. The conveying component is used to convey the precious metal composite strip in a straight direction; the cutting device is located on the conveying route of the precious metal composite strip, and the cutting device includes a cutting knife 1, which is arranged on the side of the conveyed precious metal composite strip, and the cutting knife 1 has a blade portion 2 for cutting the side of the precious metal composite strip, and a chip removal groove 3 is provided on the side of the cutting knife 1 away from the conveying end of the precious metal composite strip, and the chip removal groove 3 is arranged close to the blade portion 2; the chip removal groove 3 is C-shaped.

[0027] It can be understood that the conveying component provides power and material collection functions for the precious metal composite strip during the entire conveying process, so that the precious metal composite strip is conveyed in a straight line. The cutting blade 1 is arranged on the side of the precious metal composite strip being conveyed, and can cut the side of the precious metal composite strip. When the precious metal composite strip passes through the cutting blade 1 of the cutting device, the excess part of the side of the precious metal composite strip will be removed by the cutting blade 1, which can make the side of the precious metal composite strip more uniform, improve the consistency of product appearance, and ensure the stability of electrical properties. The waste chips generated by cutting converge along the cutting blade 2 in the opposite direction of the conveying direction, so the C-type chip removal groove 3 is arranged on the side of the cutting blade 1 away from the conveying end of the precious metal composite strip, and the C-type chip removal groove 3 has a smooth curved surface and a guiding function. Waste chips will not accumulate in the groove, which is conducive to chip removal without material jamming. It should be noted that in the accompanying drawings, Figures 1 to 3 The direction indicated by the arrow A is the conveying direction of the precious metal composite strip.

[0028] In a preferred embodiment, the cutting blade 1 is a white steel blade, which has high red hardness and wear resistance, sharp cutting edges, fast cutting speed, and is conducive to improving cutting efficiency; it has high toughness and excellent impact resistance, and its bending strength and impact toughness are at the same level as ordinary high-speed steel, but its service life is longer than that of ordinary high-speed steel, and it has a good cost performance. In this embodiment, the size of the C-shaped white steel blade is 20mm in length, 6mm in width, and 6mm in height. The radius of the C-shaped part of the blade head is 1.3mm-2.0mm, which is tangent to the cross section to form a sharp cutting edge.

[0029] In a preferred embodiment, the conveying assembly includes an unwinding portion located at the front end of the cutting device and a rewinding portion located at the end of the cutting device. It can be understood that the precious metal composite strip is conveyed in an unwinding manner, which has higher conveying efficiency than placing a single strip, reduces the feeding operation, improves the cutting efficiency, and the roll-type placement of the strip makes the overall conveying device occupy a small volume and saves space.

[0030] Specifically, the unwinding section includes a first frame 4, a magnetic powder clutch 5, and a magnetic powder brake 6. The magnetic powder clutch 5 and the magnetic powder brake 6 can cooperate to stably transmit a constant torque, effectively control the unwinding tension range of 0.5kg-1kg, straighten the strip to prevent distortion and deformation, and avoid excessive tension causing damage to the strip. The winding section includes a second frame 7 and a winding drive device 8. The winding drive device 8 is arranged above the second frame 7 to provide power and winding functions for the precious metal composite strip throughout the process.

[0031] In a preferred embodiment, the cutting device is provided with a limiting part, which includes a first limiting group 9 and a second limiting group 10. The first limiting group 9 includes at least two guide rollers acting on the sides of the precious metal composite strip respectively, and the second limiting group 10 includes at least two guide rollers acting on the upper and lower sides of the precious metal composite strip respectively. It can be understood that the limiting part has a guiding effect on the movement of the strip. The first limiting group 9 limits the horizontal position of the strip to prevent it from swinging left and right along the conveying direction of the strip, affecting the inconsistent width of the left and right cutting or cutting the material; the second limiting group 10 limits the longitudinal position of the strip to prevent it from swinging up and down perpendicular to the conveying direction of the strip, controlling the height of the strip, and preventing the strip from being too low to hit the bottom and forming scratches during the movement, or too high to run out of the highest cutting position of the cutting blade 1 and fail.

[0032] In a preferred embodiment, the cutting device is provided with a straightening part 11, and the straightening part 11 is provided with a straightening assembly. The straightening assembly includes two layers of first rollers 12 respectively arranged on the upper and lower sides of the precious metal composite strip, each layer is provided with a plurality of first rollers 12, and the two layers of first rollers 12 are staggered and distributed, and the first rollers 12 roll against the surface of the precious metal composite strip. In this embodiment, the straightening part 11 includes a U-shaped straightening frame 14 and a straightening assembly. The straightening assembly is installed in the U-shaped straightening frame 14. The bottom of the U-shaped straightening frame 14 is provided with a 2cm spring limiting hole, which is connected to the platform 16 of the cutting device through an L-shaped metal block 15. The first roller is a bolt-type roller bearing, and the two layers of bolt-type roller bearings are staggered 60 degrees and distributed on the upper and lower sides of the precious metal composite strip. The two layers of bolt-type roller bearings cooperate with each other and continuously act on the upper and lower surfaces of the precious metal composite strip. With such a configuration, the strip with an arch can be straightened, the flatness of the precious metal composite strip can be ensured, and the stability of subsequent cutting can be guaranteed.

[0033] In a preferred embodiment, a limiting part is provided on the cutting device, and the limiting part includes a first limiting group 9, and the first limiting group 9 includes at least two guide rollers acting on the sides of the precious metal composite strip respectively, and the first limiting group 9 includes two groups and the two groups are respectively arranged on both sides of the straightening part 11. Such an arrangement can guide the movement of the strip, and ensure that the strip is within the action range of the straightening assembly when entering the straightening. The cutting knife 1 is downstream of the straightening part 11, and the first limiting group 9 also ensures that the strip enters the cutting action range smoothly after straightening, reduces the probability of errors caused by changes in the position of the strip, and improves the accuracy of the device.

[0034] In a preferred embodiment, the cutting device includes at least two groups of cutting knives 1 distributed on both sides of the precious metal composite strip, and a second roller 13 is provided on the opposite side of each cutting knife 1, and the second roller 13 forms a thrust on the precious metal composite strip toward the cutting knife 1; the second roller 13 is connected to a position adjustment device, and the distance between the second roller 13 and the cutting knife 1 on the opposite side can be adjusted by the position adjustment device. It can be understood that the positions of the two cutting knives 1 are fixedly distributed on both sides of the precious metal composite strip. Compared with the distribution on the same side, the burrs on the left and right sides of the strip can be processed at the same time, which reduces the process, improves production efficiency, shortens the working time, and avoids multiple trimming. In this embodiment, the cutting knife 1 is a C-shaped white steel knife, which is fixed on the platform 16 of the cutting device through an internal clamping cutting knife 1 groove with a length of 15mm, a width of 6mm, and a height of 6mm, and an external length of 25mm, a width of 25mm, and a height of 12mm.

[0035] A movable second roller 13 is arranged opposite to the cutting blade 1. In this embodiment, the second roller 13 is a bolt-type roller bearing with a diameter of 19 mm. It can be understood that the opposite sides are the two sides perpendicular to the conveying direction of the strip. By adjusting the distance between the bolt-type roller bearing and the opposite side cutting blade 1, the strip is moved in the lateral position to achieve the change of cutting depth. The second roller 13 can be matched with a manual or electric position adjustment device. For example, the manual method is to set a strip hole and a fastening bolt at the roller installation part, and the distance is changed by adjusting the position of the fastening bolt, or the electric method is a cylinder or motor device. The position adjustment operation is simple and fast.

[0036] In summary, the roller in this embodiment is a bolt-type roller bearing. Of course, other commonly used rollers, such as bracket-type rollers, may also be used.

[0037] like Figure 4 As shown, the burrs on the side of the strip can be removed by 0.2mm-0.5mm at one time through this embodiment, and a continuous strip with a width of X3mm and a thickness of Z1.5mm can be obtained. Of course, this is only one of the specifications of the continuous strip that can be obtained by the utility model. The spacing of the rollers of the limiting group can be designed according to the needs, and the continuous strips of different specifications can be obtained by adjusting the position of the second roller 13.

[0038] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A device for deburring the side of a precious metal composite strip, characterized in that: It includes a conveying assembly and a cutting device, wherein the conveying assembly is used to convey the precious metal composite strip in a straight line direction; The cutting device is located on a conveying route of the precious metal composite strip, and comprises a cutting blade (1). The cutting blade (1) is arranged on the side of the conveyed precious metal composite strip, and the cutting blade (1) has a blade portion (2) for cutting the side of the precious metal composite strip. A chip removal groove (3) is arranged on the side of the cutting blade (1) away from the conveying end of the precious metal composite strip, and the chip removal groove (3) is arranged close to the blade portion (2); The chip removal groove (3) is C-shaped.

2. A device for deburring the side of a precious metal composite strip according to claim 1, characterized in that: The cutting knife (1) is a white steel knife.

3. The device for deburring the side of a precious metal composite strip according to claim 1, characterized in that: The conveying assembly comprises an unwinding section located at the front end of the cutting device and a rewinding section located at the rear end of the cutting device. The unwinding section comprises a first frame (4), a magnetic powder clutch (5), and a magnetic powder brake (6). The rewinding section comprises a second frame (7) and a rewinding drive device (8).

4. The device for deburring the side of a precious metal composite strip according to claim 1, characterized in that: The cutting device is provided with a limiting portion, which includes a first limiting group (9) and a second limiting group (10), wherein the first limiting group (9) includes at least two guide rollers respectively acting on the side surfaces of the precious metal composite strip, and the second limiting group (10) includes at least two guide rollers respectively acting on the upper and lower surfaces of the precious metal composite strip.

5. The device for deburring the side of a precious metal composite strip according to claim 1, characterized in that: The cutting device is provided with a straightening portion (11), the straightening portion (11) is provided with a straightening assembly, the straightening assembly comprises two layers of first rollers (12) respectively arranged on the upper and lower sides of the precious metal composite strip, each layer is provided with a plurality of first rollers (12), and the two layers of first rollers (12) are staggered, and the first rollers (12) roll in contact with the surface of the precious metal composite strip.

6. The device for deburring the side of a precious metal composite strip according to claim 5, characterized in that: The cutting device is provided with a limiting portion, the limiting portion comprising a first limiting group (9), the first limiting group (9) comprising at least two guide rollers acting on the side surfaces of the precious metal composite strip respectively, the first limiting group (9) comprising two groups and the two groups are respectively arranged on both sides of the straightening portion (11).

7. The device for deburring the side of a precious metal composite strip according to claim 1, characterized in that: The cutting device comprises at least two groups of cutting knives (1) distributed on both sides of the precious metal composite strip, and a second roller (13) is provided on the opposite side of each cutting knife (1), and the second roller (13) forms a thrust force on the precious metal composite strip toward the cutting knife (1); The second roller (13) is connected to a position adjustment device, and the distance between the second roller (13) and the cutting blade (1) on the opposite side thereof is adjusted by the position adjustment device.

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