Limiting device and winding machine
By designing a limiting device for adjusting screws and sliders, the problem of low adjustment accuracy and efficiency of existing limiting devices is solved, high-precision strip limit and convenient operation are achieved, and the production efficiency of the winding machine and the quality stability of the iron core are improved.
Patent Information
- Application Number
- CN202422177253.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-05
AI Technical Summary
When adjusting the strip limit, the existing limiting device has low adjustment accuracy and efficiency, resulting in unstable core winding quality and affecting production efficiency.
A limiting device is designed, adopting a structure of an adjustment screw and a slider. By rotating the adjustment screw, the slider moves along the width direction of the strip, driving the limiting rod to limit the outer end of the strip, and improving the limiting accuracy and efficiency.
It realizes high-precision strip limits, is convenient to operate, significantly improves the production efficiency of the winding machine, and ensures the quality stability of the iron core.
Smart Images
Figure CN223038771U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of core winding, in particular to a limiting device and a winding machine. Background Art
[0002] Current transformers are widely used in fields such as power systems, power industries, and transportation railways. The winding of the core is a step in the production of current transformers. In order to ensure excellent and stable performance of the produced current transformers, it is necessary to ensure the quality of core winding. The limiting accuracy requirements for the strip during core winding are very high. Due to slight differences in the width of the strip itself, these slight differences may cause problems with the core. If the limiting device has an excessive interference fit, the limiting device will squeeze the strip, resulting in the fracture of the strip or making the wound core too compact and unqualified in performance; if there is a gap between the limiting device and the strip, the strip is not fixed and will shift and vibrate, making the produced core loose and unqualified in performance.
[0003] In order to ensure the quality of core winding, the limiting device in the prior art includes a limiting rod and an adjusting block. By adjusting the position of the adjusting block, the outer end of the strip is limited by the limiting rod. When adjusting the position of the adjusting block in this structure, it is necessary to loosen the screw fixing the adjusting block and directly move the adjusting block. The adjusting accuracy and efficiency of this adjusting block are low, which is not conducive to improving the production efficiency. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a limiting device and a winding machine. The limiting device limits the outer end of the strip, with high adjusting accuracy and efficiency, and can effectively improve the production efficiency of the winding machine.
[0005] To achieve the above object, the utility model adopts the following technical solutions:
[0006] A limiting device is applied to a winding machine for winding a strip. The limiting device includes:
[0007] A housing, which is arranged on the winding machine;
[0008] A slider, which is slidably connected to one end of the housing close to the strip. A first threaded hole is arranged at the end of the slider far from the strip;
[0009] An adjusting screw rod, which is arranged at the end of the housing far from the strip and is threadedly connected to the first threaded hole. The adjusting screw rod can make the slider approach or move away from the strip along the width direction of the strip;
[0010] A limiting rod, which is arranged on the slider. The limiting rod limits the outer end of the strip under the drive of the slider.
[0011] As an alternative, along the width direction of the strip, a through hole penetrating the housing is provided in the housing. The top surface and the bottom surface of the end of the housing close to the strip are both provided with relief long grooves communicating with the through hole. The relief long grooves extend along the width direction of the strip. The slider is slidably arranged in the through hole. An installation hole is provided on the slider. The installation hole at least partially coincides with the relief long groove. The limiting rod is inserted into the installation hole. The two relief long grooves are used to avoid the limiting rod.
[0012] As an alternative, a head abutting against the top surface of the housing is provided at the upper end of the limiting rod.
[0013] As an alternative, the housing is further provided with a second threaded hole communicating with the through hole. A tightening member capable of abutting against the slider is screwed in the second threaded hole.
[0014] As an alternative, a first baffle is further included. The first baffle is fixed to one end of the housing close to the strip to limit the slider from sliding out of the through hole.
[0015] As an alternative, a second baffle is further included. The second baffle is provided with a limiting hole and is fixed to the end of the housing away from the strip;
[0016] The adjusting screw rod includes a screw rod part and a knob part connected to each other. The screw rod part is located in the through hole and is threadedly connected to the slider. The knob part is located outside the through hole. A ring groove is provided on the outer wall of the end of the screw rod part connected to the knob part. The ring groove is limited in the limiting hole to limit the displacement of the adjusting screw rod along the width direction of the strip.
[0017] As an alternative, the limiting hole is set to be U-shaped or O-shaped.
[0018] As an alternative, a connecting member is further included. The connecting member is arranged on the winding machine, and the housing is arranged on the connecting member.
[0019] As an alternative, the housing is provided with a convex block. The convex block is provided with a first long hole extending along the width direction of the strip. The connecting member is provided with a second long hole extending along the thickness direction of the strip. A first fastener is arranged in the first long hole to connect with the connecting member, and a second fastener is arranged in the second long hole to connect with the winding machine.
[0020] A winding machine, including a winding device and the limiting device described in any of the above solutions;
[0021] The winding device limits the inner end in the width direction of the strip;
[0022] The limiting device is used to limit the outer ends of the strip in the width direction.
[0023] Advantages of the present utility model:
[0024] The present utility model provides a limiting device. By screwing the adjusting screw into the first threaded hole of the slider, when the adjusting screw is rotated, the slider can move closer to or away from the strip along the width direction of the strip on the housing, so that the limiting rod limits the outer ends of the strip. By rotating the adjusting screw to drive the slider to move, on the one hand, high-precision limiting of the strip can be achieved, and on the other hand, the operation is convenient, which can effectively improve production efficiency. Description of the drawings
[0025] Figure 1 is a schematic structural diagram of a winding machine provided by an embodiment of the present utility model;
[0026] Figure 2 is a schematic structural diagram of the limiting device provided by an embodiment of the present utility model;
[0027] Figure 3 is an exploded view of the limiting device provided by an embodiment of the present utility model;
[0028] Figure 4 is a schematic structural diagram of the adjusting screw provided by an embodiment of the present utility model.
[0029] In the figure:
[0030] 10, conveying track; 20, winding device; 30, limiting device; 31, housing; 311, through hole; 312, relief slot; 313, convex block; 3131, first long hole; 32, adjusting screw; 321, screw part; 3211, annular groove; 322, knob part; 33, slider; 331, first threaded hole; 332, mounting hole; 34, limiting rod; 341, end; 35, pressing member; 36, first baffle; 37, second baffle; 371, limiting hole; 38, connecting member; 381, cross plate; 3811, third threaded hole; 382, vertical plate; 3821, second long hole; 39, first fastener; 40, tape feeding device; 50, cutting device; 60, core outer diameter detection device; 70, external welding device; 80, flattening device; 90, internal welding device; 100, material taking device; 200, belt conveying device; 300, strip. Detailed implementation manners
[0031] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, but should not be construed as limiting the present utility model.
[0032] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first feature and the second feature, or may include the situation where the first feature and the second feature are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature.
[0034] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.
[0035] As Figure 1 shown, an embodiment of the present utility model provides a winding machine for manufacturing the mutual inductor on a residual current circuit breaker. The strip 300 required for the mutual inductor is strip-shaped, and the strip 300 is thin and brittle, and the width of the strip 300 is generally 10 mm - 20 mm.
[0036] The winding machine includes a conveying track 10, a winding device 20, and a limiting device 30 provided by the embodiment of the present invention. Among them, the conveying track 10 is used to carry the strip 300, the winding device 20 is used to wind the strip 300 to form an iron core, and when the winding device 20 winds the strip 300, it can limit the inner end of the strip 300 along its width direction (X-axis direction); the limiting device 30 is arranged at the outer end of the strip 300 along its width direction and limits the outer end of the strip 300. The winding machine limits the inner end and the outer end of the strip 300 along its width direction by the winding device 20 and the limiting device 30 at the same time, so that the winding accuracy of the strip 300 is high, and the yield rate of the iron core can be effectively improved.
[0037] Furthermore, the winding machine further includes a tape feeding device 40, a cutting device 50, an iron core outer diameter detection device 60, an outer welding device 70, a flattening device 80, an inner welding device 90, a material taking device 100, and a belt conveying device 200.
[0038] Among them, the tape feeding device 40 is arranged between the conveying track 10 and the winding device 20. The tape feeding device 40 is used to convey the strip 300 to the winding device 20. The winding device 20 clamps the end of the strip 300 along its length direction and winds the strip 300 into an iron core. During this winding process, the limiting device 30 is aligned with the winding device 20 and limits the outer end of the strip 300. The iron core outer diameter detection device 60 is used to detect whether the outer diameter of the iron core meets the set requirements. When the outer diameter of the iron core meets the set requirements, the winding of the iron core is completed. The cutting device 50 can cut the strip 300, and the outer welding device 70 welds the end of the iron core; the limiting device 30, the flattening device 80, the inner welding device 90, and the material taking device 100 are all arranged at the output end of the belt conveying device 200 through an adapter plate. When the winding of the iron core is completed, the belt conveying device 200 drives the adapter plate to move, so that the flattening device 80 is aligned with the winding device 20. The flattening device 80 can flatten the iron core to further ensure the quality of the iron core. The belt conveying device 200 then drives the adapter plate to move so that the inner welding device 90 is aligned with the winding device 20. The inner welding device 90 welds the starting end of the iron core. The belt conveying device 200 then drives the adapter plate to move so that the material taking device 100 is aligned with the winding device 20. The material taking device 100 is used to take down the iron core and place it on a weighing device, and the weighing device weighs and detects the iron core to complete the winding of the complete iron core.
[0039] The iron core wound by this winding machine has excellent and stable performance, can effectively improve the quality of the iron core, and has high production efficiency.
[0040] The following will Figures 2 - 4 describe the limiting device 30 in detail.
[0041] As Figures 2 - 3As shown in the figure, the limiting device 30 includes a housing 31, an adjusting screw 32, a slider 33 and a limiting rod 34. Among them, the housing 31 is arranged on the adapter plate of the winding machine and is located at the outer end of the strip 300 along its width direction. One end of the slider 33 away from the strip 300 is provided with a first threaded hole 331. The adjusting screw 32 is arranged at the end of the housing 31 away from the strip 300 and is threadedly connected to the first threaded hole 331 of the slider 33. And the adjusting screw 32 is rotatably connected to the housing 31. The slider 33 is slidably connected to the end of the housing 31 close to the strip 300. The limiting rod 34 is arranged on the slider 33. Rotating the adjusting screw 32 can make the slider 33 approach or move away from the strip 300 along the width direction of the strip 300, so that the slider 33 drives the limiting rod 34 to limit the outer end of the strip 300 along its width direction. In this embodiment, the width direction of the strip 300 and the length direction of the housing 31 are in the same direction.
[0042] The limiting device 30 is threadedly connected through the adjusting screw 32 and the first threaded hole 331 of the slider 33. And when the adjusting screw 32 is rotated, the slider 33 can approach or move away from the strip 300 along the width direction of the strip 300, so that the limiting rod 34 limits the outer end of the strip 300. By rotating the adjusting screw 32 to drive the slider 33 to move, on the one hand, the strip 300 can be accurately limited, and on the other hand, the operation is convenient, which can effectively improve the production efficiency.
[0043] Optionally, a through hole 311 penetrating the housing 31 along the width direction of the strip 300 is arranged in the housing 31. The top surface and the bottom surface of the end of the housing 31 close to the strip 300 along the vertical direction (Y-axis direction) are both provided with a relief slot 312 communicating with the through hole 311. The relief slot 312 extends along the width direction of the strip 300. The slider 33 is slidably arranged in the through hole 311. An installation hole 332 is arranged on the slider 33. The installation hole 332 at least partially coincides with the relief slot 312. The limiting rod 34 passes through the installation hole 332, and the limiting rod 34 is arranged in the two relief slots 312 of the housing 31 along the vertical direction. The two relief slots 312 are used to avoid the limiting rod 34, so that the slider 33 can drive the limiting rod 34 to move and adjust. This structure makes the installation of the slider 33 convenient, and the slider 33 is arranged inside the housing 31, and the structure is more compact. The width direction of the strip 300 and the vertical direction are perpendicular to each other.
[0044] In other embodiments, the slider 33 can also be installed outside the housing 31 through a guide rail-slider structure.
[0045] In order to facilitate the installation of the limit rod 34 into the installation hole 332, a transition fit is provided between the limit rod 34 and the installation hole 332. An end 341 is provided at the upper end of the limit rod 34 in the vertical direction, and the diameter of the end 341 is greater than the width of the relief slot 312, so that the end 341 can abut against the top surface of the housing 31, ensuring that the limit rod 34 will not fall off after being installed in the installation hole 332.
[0046] Of course, in other embodiments, an interference fit can be provided between the limit rod 34 and the installation hole 332, and the limit rod 34 can be fixed in the installation hole 332 by means of tapping. However, this structure makes the disassembly and assembly of the limit rod 34 inconvenient.
[0047] In order to relatively fix the positions of the slider 33 and the housing 31, the housing 31 is further provided with a second threaded hole communicating with the through hole 311. A tightening member 35 is provided in the second threaded hole, and the tightening member 35 is screwed into the second threaded hole. By rotating the tightening member 35, it can abut against the slider 33. Optionally, the tightening member 35 can be selected as a screw or a set screw.
[0048] In order to prevent the slider 33 from sliding out of the through hole 311 at the end of the housing 31 close to the strip 300, the limiting device 30 further includes a first baffle 36. The first baffle 36 is fixedly provided at the end of the housing 31 close to the strip 300, and the slider 33 can abut against the first baffle 36, so that the first baffle 36 restricts the slider 33 from sliding out of the through hole 311.
[0049] In order to achieve the rotational connection between the adjusting screw 32 and the housing 31 and prevent the adjusting screw 32 from displacing, as Figures 3 - 4 shown, the limiting device 30 further includes a second baffle 37. The second baffle 37 is fixedly provided at the end of the housing 31 away from the strip 300, and the second baffle 37 is provided with a limiting hole 371; the adjusting screw 32 includes a screw portion 321 and a knob portion 322 connected to each other. The screw portion 321 is located in the through hole 311 and is threadedly connected to the slider 33. The knob portion 322 is located outside the through hole 311. An annular groove 3211 is provided on the outer wall of the end of the screw portion 321 connected to the knob portion 322, and the annular groove 3211 is limited in the limiting hole 371 to restrict the displacement of the adjusting screw 32 in the width direction of the strip 300. By rotating the knob portion 322, the screw portion 321 can be rotated simultaneously, making the operation more convenient.
[0050] Optionally, the limiting hole 371 can be set as a U shape, and the U-shaped limiting hole 371 can facilitate the limiting installation of the annular groove 3211 of the adjusting screw 32.
[0051] Optionally, the limiting hole 371 can be set as an O shape. At this time, the second baffle 37 can be cut into two halves, and the two halves are butted during installation so that the annular groove 3211 of the adjusting screw 32 is limited in the limiting hole 371.
[0052] Optionally, the limiting device 30 further includes a connecting member 38. The connecting member 38 includes a horizontal plate 381 and a vertical plate 382 which are perpendicularly connected to each other. The vertical plate 382 of the connecting member 38 is connected to the adapter plate of the winding machine, and the housing 31 is arranged on the horizontal plate 381 of the connecting member 38. The housing 31 is arranged on the adapter plate of the winding machine through the connecting member 38, and the installation structure is more reasonable.
[0053] Furthermore, the housing 31 is provided with a convex block 313. The convex block 313 is provided with a first long hole 3131 extending in the width direction of the strip 300. The vertical plate 382 of the connecting member 38 is provided with a second long hole 3821 extending in the vertical direction. A first fastener 39 is arranged in the first long hole 3131 to connect with the connecting member 38, and a second fastener is arranged in the second long hole 3821 to connect with the adapter plate of the winding machine. By providing the first long hole 3131 and the second long hole 3821, the housing 31 can be roughly adjusted in the width direction and the vertical direction of the strip 300, so as to achieve the purpose of roughly adjusting the limiting rod 34, making the position of the limiting rod 34 more reasonable. In this embodiment, the vertical direction and the thickness direction of the strip 300 are the same direction.
[0054] Specifically, the first fastener 39 and the second fastener can be selected as screws. Third threaded holes 3811 are provided on the horizontal plate 381 of the connecting member 38 and at the positions corresponding to the second long hole 3821 on the adapter plate. The screws at the two positions respectively pass through the first long hole 3131 and the second long hole 3821 and are respectively connected to the third threaded holes 3811 at the two positions.
[0055] Furthermore, two third threaded holes 3811 can be provided at each of the two positions, and the connection is more firm.
[0056] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A limit device, applied to a winding machine, the winding machine is used for winding a strip material (300), characterized in that: The limiting device (30) comprises: A housing (31) is arranged on the winding machine; A slider (33) is slidably connected to an end of the housing (31) close to the strip (300), and a first threaded hole (331) is provided at an end of the slider (33) away from the strip (300); an adjusting screw (32), which is arranged at one end of the housing (31) away from the strip (300) and is threadedly connected to the first threaded hole (331), and the adjusting screw (32) can make the slider (33) approach or move away from the strip (300) along the width direction of the strip (300); A limiting rod (34) is arranged on the slider (33), and the limiting rod (34) limits the outer end of the strip (300) under the drive of the slider (33).
2. The limiting device according to claim 1, characterized in that: Along the width direction of the strip (300), the shell (31) is provided with a through hole (311) penetrating the shell (31), and the top surface and the bottom surface of the shell (31) close to one end of the strip (300) are both provided with a long clearance groove (312) connected with the through hole (311), and the long clearance groove (312) extends along the width direction of the strip (300), and the slider (33) is slidably arranged in the through hole (311), and the slider (33) is provided with a mounting hole (332), and the mounting hole (332) and the long clearance groove (312) at least partially overlap, and the limit rod (34) is penetrated in the mounting hole (332), and the two long clearance grooves (312) are used to avoid the limit rod (34).
3. The limiting device according to claim 2, characterized in that: The upper end of the limiting rod (34) is provided with an end head (341) that abuts against the top surface of the shell (31).
4. The limiting device according to claim 2, characterized in that: The housing (31) is also provided with a second threaded hole communicating with the through hole (311), and a tightening member (35) capable of abutting against the sliding block (33) is threadedly connected in the second threaded hole.
5. The limiting device according to claim 2, characterized in that: It also includes a first baffle (36), which is fixed to one end of the housing (31) close to the strip (300) to limit the slider (33) from sliding out of the through hole (311).
6. The limiting device according to claim 2, characterized in that: It also includes a second baffle (37), wherein the second baffle (37) is provided with a limiting hole (371) and is fixed to an end of the housing (31) away from the strip (300); The adjusting screw (32) comprises a screw portion (321) and a knob portion (322) which are connected to each other. The screw portion (321) is located in the through hole (311) and is threadedly connected to the slider (33). The knob portion (322) is located outside the through hole (311). An annular groove (3211) is provided on the outer wall of the end portion where the screw portion (321) and the knob portion (322) are connected. The annular groove (3211) is limited in the limiting hole (371) to limit the displacement of the adjusting screw (32) along the width direction of the strip (300).
7. The limiting device according to claim 6, characterized in that: The limiting hole (371) is configured to be U-shaped or O-shaped.
8. The limiting device according to claim 1, characterized in that: It also comprises a connecting piece (38), wherein the connecting piece (38) is arranged on the winding machine, and the shell (31) is arranged on the connecting piece (38).
9. The limiting device according to claim 8, characterized in that: The shell (31) is provided with a protrusion (313), and the protrusion (313) is provided with a first long hole (3131) extending along the width direction of the strip (300). The connecting piece (38) is provided with a second long hole (3821) extending along the thickness direction of the strip (300). A first fastener (39) is provided in the first long hole (3131) and connected to the connecting piece (38), and a second fastener is provided in the second long hole (3821) and connected to the winding machine.
10. Winding machine, characterized in that, It comprises a winding device (20) and a limiting device (30) according to any one of claims 1 to 9; The winding device (20) limits the inner end of the strip (300) in the width direction; The limiting device (30) is used to limit the outer end of the strip (300) in the width direction.