Coil panel wire pre-pressing device

Abstract

The utility model discloses a coil panel wire pre-pressing device which comprises a grooved roller and a pressing roller, the grooved roller and the pressing roller are respectively and vertically arranged in a rotating mode, an annular groove used for a wire harness to pass through is formed in the grooved roller, a pressing ring used for clamping and pressing the wire harness to the bottom of the corresponding annular groove is formed on the pressing roller, and the pressing ring is arranged right opposite to the corresponding annular groove. The groove rollers and the pressing rollers are respectively arranged on the corresponding transverse position adjusting assemblies. The coil panel wire pre-pressing device is beneficial to the stability of the coil winding process, and is beneficial to the improvement of the yield of closely-wound coils.

Description

Technical Field

[0001] The utility model relates to the field of winding auxiliary devices for closely wound coils, and particularly relates to a coil disc pre-pressing wire device. Background Art

[0002] At present, some induction cookers are provided with closely wound coils. The closely wound coils are in a flat disc shape, and adjacent wire bundles of the closely wound coils are arranged in abutting contact. The wire bundles are composed of multiple strands of wires. Currently, the equipment for winding closely wound coils includes an upper chuck and a lower chuck. First, one end of the wire bundle is hooked and connected to the upper chuck, and then a pressing wire disc (the pressing wire disc is in a disc shape and can rotate) is driven by a cylinder to move radially (horizontally) into the space between the upper chuck and the lower chuck. After that, the upper chuck and the lower chuck are rotated synchronously, so that the wire bundle is wound around the central column of the lower chuck relatively. Since the pressing wire disc presses radially on the outer side of the outermost circle of wire bundles, the wire bundles are flattened by the outer circumference of the pressing wire disc during the winding process. The flattening direction of the wire bundles is along the radial direction of the closely wound coil. Thus, the wire bundles of the formed closely wound coil are not easily flipped, which is beneficial to keeping the closely wound coil in a flat disc shape, and can increase the (axial) thickness of the closely wound coil, making the magnetic field lines more concentrated and beneficial to improving the energy efficiency of the coil. When the wire bundle is an aluminum wire bundle, due to the good plasticity of the aluminum wire bundle, after winding is completed, when the upper chuck leaves the lower chuck, the coil can generally maintain a flat disc shape (i.e., good forming). However, when the wire bundle is a copper wire bundle, due to the large elasticity of the copper wire bundle, after winding is completed, in the free state of the closely wound coil, because the cross-sectional shape of the copper wire bundle will elastically recover significantly, that is, the cross-section of the wire bundle changes from an oval to a circle to a certain extent, the adjacent wire bundles push against each other, resulting in local wire bundles bouncing up or overlapping. Especially when an oval or rectangular closely wound coil needs to be wound (at this time, the central column is oval or rectangular), due to the uneven force around the coil, the coil is more likely to have wire bundles bouncing up or overlapping, resulting in a low yield rate of the closely wound coil. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a coil disc pre-pressing wire device, which is beneficial to improving the yield rate of closely wound coils.

[0004] The purpose of the utility model is realized by the following technical solutions.

[0005] The disclosed coil disc pre-pressing wire device of the utility model includes a grooved roller and a pressing roller. The grooved roller and the pressing roller are respectively rotatably arranged vertically. A ring groove for the wire bundle to pass through is formed on the grooved roller, and a pressing ring for clamping and pressing the wire bundle at the bottom of the corresponding ring groove is formed on the pressing roller. The pressing ring is arranged opposite to the corresponding ring groove. It also includes a transverse position adjustment component, and the grooved roller and the pressing roller are respectively arranged on the corresponding transverse position adjustment components.

[0006] Preferably, the lateral position adjustment assembly includes an adjustment screw, a locking nut, and a fixing nut. One end of the adjustment screw forms a rod head. The axis of the adjustment screw extends horizontally. The locking nut and the fixing nut are screwed onto the adjustment screw. It further includes a grooved roller seat and a grooved roller fork. The grooved roller is rotatably connected within the grooved roller fork. The grooved roller fork is clamped between the corresponding fixing nut and the rod head. The grooved roller seat is clamped between two corresponding locking nuts. It further includes a pressure roller seat and a pressure roller fork. The pressure roller is rotatably connected within the pressure roller fork. The pressure roller fork is clamped between the corresponding fixing nut and the rod head. The pressure roller seat is clamped between two corresponding locking nuts.

[0007] Preferably, the grooved roller is formed with a grooved roller center hole. A grooved roller core shaft is inserted through the grooved roller center hole. The grooved roller core shaft is connected to the grooved roller center hole through corresponding bearings. The upper and lower ends of the grooved roller core shaft are respectively adaptively connected to the grooved roller fork.

[0008] Preferably, the grooved roller seat is formed with first adjustment long holes extending vertically. The two first adjustment long holes are distributed vertically. The adjustment screws are respectively arranged in the corresponding first adjustment long holes. The pressure roller seat is formed with second adjustment long holes extending vertically. The two second adjustment long holes are distributed vertically. The adjustment screws are respectively arranged in the corresponding second adjustment long holes.

[0009] Preferably, the annular groove is gradually narrowed and distributed axially. The pressure ring is gradually thinned and distributed axially. The pressure ring can extend into the corresponding annular groove.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: By providing that the grooved roller and the pressure roller are respectively rotatably arranged vertically, the grooved roller is formed with an annular groove for the wire harness to pass through, the pressure roller is formed with a pressure ring for clamping the wire harness at the bottom of the corresponding annular groove, the pressure ring is arranged opposite to the corresponding annular groove, and the grooved roller and the pressure roller are respectively arranged on the corresponding lateral position adjustment assemblies, the wire harness is flattened before winding, so it is beneficial to the stability of the coil winding process and is beneficial to improving the yield rate of the closely wound coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a three-dimensional structural schematic diagram of the coil disk pre-pressing device of the present invention.

[0012] Figure 2 is a front view structural schematic diagram of the coil disk pre-pressing device of the present invention.

[0013] Figure 3 is a three-dimensional structural schematic diagram of the grooved roller of the present invention.

[0014] Figure 4 This is a three-dimensional structural schematic diagram of the pressure roller of the present utility model.

[0015] Figure 5 This is an installation structural schematic diagram of the grooved roller and the grooved roller fork of the present utility model.

[0016] Figure 6 This is a working schematic diagram of the coil disk pre-pressing line device of the present utility model.

[0017] Label description: grooved roller 1; grooved roller core shaft 11; annular groove 101; grooved roller center hole 102; pressure roller 2; pressure roller core shaft 21; pressure ring 201; pressure roller center hole 202; grooved roller seat 3; first adjustment long hole 301; pressure roller seat 4; second adjustment long hole 401; grooved roller fork 5; pressure roller fork 6; adjustment screw 7; locking nut 71; fixing nut 72; rod head 701; bearing 9; spacer sleeve 91; wire harness 99; upper chuck 98; radial through slot 981; lower chuck 97; wire pressing disk 96. Specific embodiments

[0018] The present utility model will be further described below with reference to the accompanying drawings.

[0019] The coil disk pre-pressing line device of the present utility model, as Figure 1 and Figure 2 shown, includes a grooved roller 1 and a pressure roller 2. The grooved roller 1 and the pressure roller 2 are respectively vertically rotatably arranged. That is to say, the grooved roller 1 and the pressure roller 2 are respectively rotatably arranged around a vertical axis. Thus, the rotation axis of the grooved roller 1 is parallel to the rotation axis of the pressure roller 2. As Figure 3 shown, an annular groove 101 for the wire harness 99 to pass through is formed on the grooved roller 1. As Figure 4 shown, a pressure ring 201 for clamping and pressing the wire harness 99 at the bottom of the corresponding annular groove 101 is formed on the pressure roller 2. As Figure 1 and Figure 2As shown, the pressing ring 201 is disposed opposite to the corresponding annular groove 101; the coil disk pre-pressing wire device of the present utility model further includes a lateral position adjustment component, and the groove roller 1 and the pressing roller 2 are respectively disposed on the corresponding lateral position adjustment components; that is to say, the groove roller 1 can be driven by the corresponding lateral position adjustment component to move and adjust its position in the left-right direction. Similarly, the pressing roller 2 can be driven by the corresponding lateral position adjustment component to move and adjust its position in the left-right direction. For example, the lateral position adjustment component can be a combination of a screw and a nut. The rotation of the screw is restricted. When the nut is rotated, the screw can move linearly. Thus, the groove roller 1 can be disposed on the above-mentioned screw to achieve linear movement. For example, the lateral position adjustment component can be a combination of a gear and a rack. The gear drives the rack to move linearly. Thus, the groove roller 1 can be disposed on the above-mentioned rack to achieve linear movement. For example, the lateral position adjustment component can be a combination of an eccentric wheel and a sliding groove. The plate member formed with the sliding groove is restricted to move linearly. When the eccentric wheel rotates in the sliding groove, it can drive the above-mentioned plate member to move in a direction perpendicular to the extension direction of the sliding groove. Thus, the groove roller 1 can be disposed on the plate member formed with the above-mentioned sliding groove to achieve linear position adjustment.

[0020] The working principle of the coil disk pre-pressing wire device of the present utility model will be briefly described below: As Figure 6 shown, the wire harness 99 is inserted between the annular groove 101 and the corresponding pressing ring 201, so that the wire harness 99 is located in the corresponding annular groove 101. When the groove roller 1 is rotated by hand, the groove roller 1 will suck in the wire harness 99, and the wire harness 99 will be flattened into an approximately elliptical shape by the pressing ring 201. As Figure 1As shown, the ends of the wire harness 99 can pass through the corresponding annular groove 101, and then the wire harness 99 is pulled to the winding station by hand, and the wire harness 99 is moved between the upper chuck 98 and the lower chuck 97, and at the same time, the ends of the wire harness 99 are radially hung into the radial through seam 981 of the upper chuck 98, and then the ends of the wire harness 99 are tied to the screws on the upper side of the upper chuck 98, and the wire pressing plate 96 is radially inserted between the upper chuck 98 and the lower chuck 97, and then the upper chuck 98 and the lower chuck 97 are rotated at the same time. Since the ends of the wire harness 99 are tied to the screws on the upper side of the upper chuck 98, the upper chuck 98 can The wire harness 99 can be pulled continuously, so that the wire harness 99 can be wound outside the central column of the lower chuck 97, and the wire pressing disk 96 keeps pressing on the outer side of the wire harness 99, so that the coil is tightly wound. Driven by the wire harness 99, the groove roller 1 and the pressing roller 2 rotate in opposite directions. During the winding process, since the wire harness 99 is pre-flattened by the combined action of the pressing ring 201 and the annular groove 101, the wire harness 99 with a roughly elliptical cross-section is wound outside the above-mentioned central column, and the major axis of the above-mentioned ellipse is parallel to the rotation axis of the above-mentioned central column, it is beneficial for the wire harness 99 to obtain the superimposed flattening effect of the wire pressing disk 96, and, When the wire pressing disc 96 applies radial pressure to the wire harness 99, since the wire harness 99 has been pre-flattened to a small extent, the wire harness 99 has been plastically deformed to a certain extent, and the degree to which the wire pressing disc 96 needs to flatten the wire harness 99 can be relatively reduced, so the elastic force of the wire harness 99 on the wire pressing disc 96 is also relatively reduced, thereby avoiding the radial jump of the wire pressing disc 96 during the winding process of the wire harness 99, which is conducive to stabilizing the winding process and making the coil more tightly wound and more regular in shape. When the coil is wound, the upper chuck 98 moves up and away from the coil. Since the coil is wound more tightly and the wire The harness 99 undergoes two flattening processes, so that the total flattening range of the cross section of the harness 99 is larger, and the mutual contact area between adjacent turns of the harness 99 is larger (similar to the contact between planes), the friction force is greater, and the mutual radial thrust of the harness 99 in the coil (caused by the small elastic recovery of the cross section of the harness 99) can be avoided from squeezing the harness 99 out of the coil body, and the harness 99 of the coil can be avoided from flipping over, bouncing or overlapping. This is beneficial for the coil to maintain a flat disc-shaped densely wound structure, and is beneficial for improving the yield rate of densely wound coils.

[0021] Furthermore, if Figure 1 and Figure 2 As shown, the lateral positioning assembly includes a positioning screw 7, a locking nut 71 and a fixing nut 72. A rod head 701 is formed at one end of the positioning screw 7. The axis of the positioning screw 7 is arranged to extend in the lateral direction, that is, the axis of the positioning screw 7 is perpendicular to the rotation axis of the grooved roller 1. The locking nut 71 and the fixing nut 72 are screwed on the positioning screw 7. Figure 1 and Figure 2As shown, the coil disk pre-stressing device of the utility model also includes a groove roller seat 3 and a groove roller fork 5, the groove roller 1 is rotatably connected to the groove roller fork 5, the groove roller fork 5 is clamped between the corresponding fixing nut 72 and the rod head 701, specifically, the groove roller fork 5 includes a vertical plate and a flat plate, the upper and lower ends of the vertical plate are respectively connected to the corresponding flat plate, the groove roller 1 is specifically located between the upper and lower two flat plates, specifically, the vertical plate is clamped between the corresponding fixing nut 72 and the rod head 701, that is, the positioning screw 7 passes through the vertical plate correspondingly, so that the groove roller fork 5 and the corresponding positioning screw 7 are reliably fixed relative to each other, as shown in the figure, the groove roller seat 3 is clamped between the corresponding two locking nuts 71, that is, the positioning screw 7 passes through the groove roller seat 3, so that the positioning screw 7 and the groove roller seat 3 are reliably fixed relative to each other, when it is necessary to adjust the distance between the groove roller 1 and the pressure roller 2, for example, to move the groove roller 1 in the direction close to the pressure roller 2, such as Figure 2 As shown, first loosen the locking nut 71 on the right side of the groove roller seat 3, and then rotate the locking nut 71 on the left side of the groove roller seat 3 clockwise. A structure for blocking the rotation of the groove roller fork 5 can be provided. Since the adjusting screw 7 cannot rotate, the locking nut 71 can drive the adjusting screw 7 to move leftward, and the distance between the bottom of the annular groove 101 and the pressure ring 201 can be adjusted. After the adjustment is completed, tighten the locking nut 71 on the right side of the groove roller seat 3. Figure 2 As shown, the degree to which the harness 99 is flattened by the bottom of the annular groove 101 and the pressure ring 201 can be adjusted. The harness 99 is limited by the structure of the annular groove 101 to prevent the harness 99 from moving up and down and separating from the corresponding pressure ring 201. When the groove roller 1 needs to be adjusted away from the pressure roller 2, the locking nut 71 on the left side of the groove roller seat 3 is loosened, and the locking nut 71 on the right side of the groove roller seat 3 is rotated to move the adjustment screw 7 to the right. After the adjustment is completed, the locking nut 71 on the left side of the groove roller seat 3 is tightened. Figure 1 and Figure 2 As shown, the coil disk pre-stressing device of the utility model also includes a pressure roller seat 4 and a pressure roller fork 6. The pressure roller 2 is rotatably connected to the pressure roller fork 6. The pressure roller fork 6 is clamped between the corresponding fixing nut 72 and the rod head 701. The pressure roller seat 4 is clamped between the corresponding two locking nuts 71. Since the lateral adjustment structure of the pressure roller 2 is the same as the lateral adjustment structure of the groove roller 1, it is not described again. Therefore, the pressure roller 2 is laterally adjusted by the corresponding lateral adjustment component, which is conducive to flexible adjustment of the distance between the bottom of the annular groove 101 and the pressure ring 201.

[0022] Furthermore, if Figure 1 As shown, the grooved roller 1 is formed with a grooved roller center hole 102, as shown in FIG. Figure 5As shown, a core hole 102 of a grooved roller is penetrated by a grooved roller core shaft 11. The grooved roller core shaft 11 is connected to the core hole 102 of the grooved roller through corresponding bearings 9. The upper and lower ends of the grooved roller core shaft 11 are respectively and adaptively connected to grooved roller fork supports 5. Specifically, a spacer sleeve 91 is provided between the bearings 9 and the above-mentioned flat plates of the grooved roller fork supports 5 to prevent the grooved roller fork supports 5 from scraping the end face of the grooved roller 1. The grooved roller core shaft 11 penetrates through the above-mentioned flat plates of the grooved roller fork supports 5. A head is formed at the upper end of the grooved roller core shaft 11, and the above-mentioned head is located above the grooved roller fork support 5. A nut is screwed at the lower end of the grooved roller core shaft 11, and the grooved roller fork support 5 is clamped between the above-mentioned nut and the head of the grooved roller core shaft 11. The grooved roller core shaft 11 can be selected as an internal hexagon screw. The relative rotational connection structure between the above-mentioned grooved roller 1 and the grooved roller fork support 5 is relatively simple, easy to manufacture, and has a low cost. As Figure 2 , a pressure roller core shaft 21 penetrates through a pressure roller center hole 202 of the pressure roller 2.

[0023] Furthermore, as Figure 1 shown, a first adjustment long hole 301 extending vertically is formed on a grooved roller seat 3, and two first adjustment long holes 301 are arranged vertically. Adjustment screws 7 are respectively provided in the first adjustment long holes 301. In other words, the grooved roller fork support 5 is supported by two adjustment screws 7. Thus, when it is necessary to adjust the lateral position of the grooved roller 1, for example, first loosen the locking nut 71 on the right side of the grooved roller seat 3. When rotating one of the two locking nuts 71 on the left side of the grooved roller seat 3, since the adjustment screws 7 are respectively provided in the first adjustment long holes 301, the two first adjustment long holes 301 prevent the grooved roller fork support 5 from rotating. Since the first adjustment long hole 301 extends vertically, when the locking nuts 71 on the upper and lower two adjustment screws 7 are loosened, the grooved roller 1 can be moved up and down for adjustment so that the annular groove 101 can be aligned with the corresponding pressure ring 201. After the vertical adjustment of the grooved roller 1 is completed, tighten all the locking nuts 71 so that the grooved roller seat 3 is clamped between the corresponding two locking nuts 71. As Figure 2 shown, a second adjustment long hole 401 extending vertically is formed on a pressure roller seat 4, and two second adjustment long holes 401 are arranged vertically. Adjustment screws 7 are respectively provided in the second adjustment long holes 401. Thus, the pressure roller 2 can also be adjusted up and down.

[0024] Furthermore, as Figures 1 to 4 shown, the annular grooves 101 are arranged to gradually narrow along the axial direction. The width of the annular groove 101 is the Figure 3 dimension "X" in Figure 3 . The annular grooves 101 are arranged along the axial direction. In Figure 3 , the number of the annular grooves 101 is six, but the widths of the annular grooves 101 are arranged to gradually narrow, that is, the width of the annular groove 101 located relatively higher is greater than the width of the adjacent annular groove 101 located relatively lower. Thus, the annular grooves 101 with different widths can be adapted to wire harnesses 99 with corresponding wire diameters; AsFigure 4 As shown, the pressing ring 201 is arranged with a gradually decreasing thickness along the axial direction. The thickness of the pressing ring 201 is the Figure 4 dimension "Y" in []. That is, the thickness of the pressing ring 201 at a relatively upper position is greater than that of the adjacent pressing ring 201 at a relatively lower position. The lower the position of the pressing ring 201, the thinner it is. The pressing ring 201 can extend into the corresponding annular groove 101. That is to say, the thickness dimension "Y" of the pressing ring 201 is less than the width dimension "X" of the corresponding annular groove 101. By reducing the distance between the adjusting groove roller 1 and the pressing roller 2, the pressing ring 201 can be made to extend into the corresponding annular groove 101. When each annular groove 101 is set with an equal radial depth, the corresponding pressing ring 201 can flatten the wire harness 99 with a smaller wire diameter. By adjusting the pressing roller 2 and the groove roller 1 up and down together, the wire harness passing through the annular groove 101 can enter between the upper clamping plate 98 and the lower clamping plate 97 at an equal height.

[0025] In summary, by setting the pre-pressing device for the coil disc of the present utility model, the wire harness is pre-pressed before the coil is wound, reducing the stress generated when the wire harness winds the coil; enabling the wire harnesses of adjacent turns to be closely adjacent to each other, improving the yield rate of coil forming; if the coil fails to form or there is a situation of overlapping wires, the distance between the pressing ring 201 and the bottom of the annular groove 101 can be adjusted to make the wire harness flatter, which helps the coil to form; making the wire harness more flattened helps to increase the thickness of the coil, enabling the magnetic field lines to be more concentrated and improving the energy efficiency of the coil; in addition to circular coils, the pre-pressing device of the present utility model is of great help for special-shaped coils, such as square coils, oval coils, etc.

Claims

1. A coil disc pre-pressing device, characterized in that: The invention comprises a groove roller (1) and a pressure roller (2), wherein the groove roller (1) and the pressure roller (2) are respectively arranged to rotate vertically, the groove roller (1) is formed with an annular groove (101) for the wire harness (99) to pass through, the pressure roller (2) is formed with a pressure ring (201) for clamping the wire harness (99) at the bottom of the corresponding annular groove (101), and the pressure ring (201) is arranged opposite to the corresponding annular groove (101); and further comprises a lateral positioning assembly, wherein the groove roller (1) and the pressure roller (2) are respectively arranged on the corresponding lateral positioning assembly.

2. The coil disk pre-pressing device according to claim 1, characterized in that: The lateral positioning assembly comprises a positioning screw (7), a locking nut (71) and a fixing nut (72); one end of the positioning screw (7) is formed with a rod head (701); the axis of the positioning screw (7) is arranged to extend in the lateral direction; the locking nut (71) and the fixing nut (72) are screwed onto the positioning screw (7); and further comprises a grooved roller seat (3) and a grooved roller fork (5); the grooved roller (1) is rotatably connected to the grooved roller fork (5); the grooved roller fork (5) clamps The grooved roller seat (3) is arranged between the corresponding fixing nut (72) and the rod head (701), and the grooved roller seat (3) is clamped between the corresponding two locking nuts (71); it also includes a pressure roller seat (4) and a pressure roller fork (6), the pressure roller (2) is rotatably connected in the pressure roller fork (6), the pressure roller fork (6) is clamped between the corresponding fixing nut (72) and the rod head (701), and the pressure roller seat (4) is clamped between the corresponding two locking nuts (71).

3. The coil disk pre-pressing device according to claim 2, characterized in that: The grooved roller (1) is formed with a grooved roller center hole (102), and a grooved roller core shaft (11) is passed through the grooved roller center hole (102). The grooved roller core shaft (11) is connected to the grooved roller center hole (102) via a corresponding bearing (9), and the upper and lower ends of the grooved roller core shaft (11) are respectively adapted to be connected to the grooved roller fork (5).

4. The coil disk pre-pressing device according to claim 2 or 3, characterized in that: The groove roller seat (3) is formed with a first positioning long hole (301) extending in a vertical direction, the two first positioning long holes (301) are distributed in a vertical direction, and the positioning screws (7) are respectively correspondingly arranged in the first positioning long holes (301); the pressure roller seat (4) is formed with a second positioning long hole (401) extending in a vertical direction, the two second positioning long holes (401) are distributed in a vertical direction, and the positioning screws (7) are respectively correspondingly arranged in the second positioning long holes (401).

5. The coil disk pre-pressing device according to claim 4, characterized in that: The annular groove (101) is arranged to be gradually narrowed and distributed along the axial direction, and the pressure ring (201) is arranged to be gradually thinned and distributed along the axial direction. The pressure ring (201) can extend into the corresponding annular groove (101).

Images