Winding machine foot wrapping no pre-load hanging method, workpiece skeleton, system, winding machine

Abstract

The present invention discloses a method for pre-stressing-free wire hanging at the winding foot of a winding machine, a workpiece frame, a system, and a winding machine, including wire starting steps (including before and after wire pulling); a winding step; and a wire tailing step. The present invention saves two terminal pre-stressing operations, saving approximately 7-10 seconds of work time; the present invention eliminates a set of pre-stressing mechanisms, reducing the volume and floor space of the winding machine, and lowering costs; the present invention facilitates the operation and debugging of welding and bending processes; the present invention reduces the tension of the wire winding foot at the starting point, so that the enameled wire is in a low tension range after entering the frame body, and after the winding step rotates to 0.5 turns, the normal tension is set in the program. At this time, the enameled wire at the winding foot will not be pulled out and cause wire breakage, thereby improving the problem of non-conductivity after winding.

Description

Technical Field

[0001] The invention relates to a winding machine, in particular to a pre-pressing-free wire hanging method for winding machine legs, a workpiece skeleton, a system and a winding machine. Background Art

[0002] Winding is the process of wrapping a linear object around a specific workpiece, usually used for copper wire winding. Most electrical products require enameled copper wire (enameled wire for short) to be wound into inductor coils, which requires a winding machine, such as various sizes of transformers, reactors, and resistors.

[0003] To meet the demands of high efficiency and high production, fully automatic winding machines typically feature a multi-head linkage design. They utilize a programmable controller as the core control system, along with a manipulator, pneumatic control components, and actuators to perform functions such as automatic wire arrangement, automatic foot wrapping, automatic wire trimming, and automatic bobbin loading and unloading. These machines offer extremely high production efficiency, significantly reducing reliance on manual labor. They also offer relatively stable production quality, making them ideal for processing applications requiring high production volumes.

[0004] However, the winding machine still has the following technical difficulties:

[0005] (1) During the normal winding process, the two ends of the tail wire must be wrapped around the welding area. However, many products often do not have much hidden dangers for the tail wire wrapping, but for the starting wire, such as Figure 1 At positions 1 and 2 shown, two enameled wires may overlap and stack, which may easily bring quality risks to the welding process, bending process, and plastic sealing process. For the above products, it is easy to cause the undesirable phenomenon of exposed wires in the foot wrapping area after plastic sealing. In the welding process, the low-resistance electrode may touch and crush the enameled wire. If there is a process that requires bending, similarly, during the mold pressing and bending process, it will also cause the risk of wire damage at the position shown in the above picture.

[0006] (2) Figure 2 At positions 3 and 4 shown, the length of the wire tail above the tail wire welding area must be higher than the welding area plane. Otherwise, after the welding process (pre-pressing before welding), the wire tail will shrink into the welding area, which is considered NG. A pre-pressing device has been added to the winding equipment. This device will pre-press the terminal after the enameled wire passes the welding area. However, during the pre-pressing process, one circle of enameled wire at the root of the PIN was crushed, which seriously poses a risk of wire breakage. Summary of the Invention

[0007] In order to solve the defects of the above-mentioned prior art, the present invention provides a winding machine foot wrapping and pre-stressing free wire hanging method, workpiece skeleton, system, and winding machine. The present invention eliminates a set of pre-stressing mechanisms, saves two pre-stressing terminal actions, is beneficial to the operation and debugging of welding and bending processes, will not damage the enameled wire, and has low cost.

[0008] To achieve the above technical objectives, the present invention adopts the following technical solutions: a method for hanging wire on a winding machine without pre-pressing, comprising the following steps:

[0009] Line drawing steps: including before and after pulling the line;

[0010] Before pulling the wire: control the wire nozzle to move to the first position to fix the end of the enameled wire at the first position; wherein the first position refers to the upper end of the soldering point of the first PIN needle;

[0011] Control the guide pin rod to turn outward and pull the enameled wire to the second position; wherein the second position refers to the lower end of the soldering point position of the first PIN pin;

[0012] Control the needle guide rod to reset and move to the third position, so that the enameled wire is pulled to the third position; wherein the third position refers to the upper end of the convex point position of the skeleton body close to the first PIN needle;

[0013] After pulling the wire: pull the wire and hang the enameled wire at the fourth position, and control the tension of the enameled wire to a low tension value; wherein the fourth position refers to the lower end of the convex point position of the skeleton body close to the first PIN needle, and the fourth position is relative to the convex point on the surface of the PIN needle;

[0014] Winding steps: Pull the enameled wire from the fourth position to the workpiece and start winding;

[0015] Tail wire step: After winding, pull the enameled wire from the workpiece to the fifth position and hang it on the fifth position. The fifth position refers to the lower end of the protrusion position of the frame body close to the second PIN pin. The fifth position is the protrusion relative to the surface of the PIN pin.

[0016] Control the needle guide rod to move to the sixth position, so that the enameled wire is pulled to the sixth position; wherein the sixth position refers to the upper end of the protrusion position of the skeleton body close to the second PIN needle;

[0017] Control the needle guide rod to move to the seventh position, so that the enameled wire is pulled to the seventh position; wherein the seventh position refers to the lower end of the soldering point position of the second PIN needle;

[0018] Control the needle guide rod to move to the eighth position, so that the enameled wire is pulled to the eighth position; wherein the eighth position refers to the upper end of the soldering point position of the second PIN needle;

[0019] Wrap the remaining thread around the wire and pull it out.

[0020] The end of the enameled wire is never lower than the plane where the first position is located.

[0021] The low tension value means that the enameled wire is in a state of extremely low tension after entering the frame body, and the enameled wire is not subjected to stress at this time.

[0022] In the winding step, after winding half a circle, set the enameled wire tension value in the program to normal tension.

[0023] A workpiece skeleton for winding foot of a winding machine for hanging wire without pre-pressure comprises a skeleton body and two PIN needles, wherein the first PIN needle is provided with a first position and a second position, the first position serving as the starting point of the enameled wire, and the second position serving as the welding point for the starting point of the enameled wire; the first PIN needle is provided with a seventh position and an eighth position, the seventh position serving as the welding point for the tail wire of the enameled wire, and the eighth position serving as the end point of the enameled wire; the skeleton body is provided with a third position, a fourth position, a fifth position and a sixth position, the third position serving as the starting point for starting and pulling the wire, the fourth position serving as the transition area before the enameled wire is wound, the tension of the enameled wire starting from the fourth position is a low tension value, the fifth position serving as the transition area after winding, and the sixth position serving as the transition area after winding.

[0024] A wire winding machine foot wrapping and pre-pressure-free wire hanging system includes an execution module for controlling the eversion, reset and movement of a guide needle rod; and a tension adjustment module for adjusting the tension of the enameled wire to a normal value after winding half a circle.

[0025] A winding machine comprises a workpiece frame for winding machine feet and pre-pressing-free wire hanging, and a winding machine feet and pre-pressing-free wire hanging system.

[0026] In summary, the present invention has achieved the following technical effects:

[0027] The present invention saves two actions of pre-pressing the terminal, saving about 7-10 seconds of working time;

[0028] The present invention eliminates a set of pre-pressing mechanisms, reduces the volume and floor space of the winding machine, and reduces costs;

[0029] The present invention is beneficial to the operation and debugging of welding and bending processes;

[0030] The present invention reduces the tension of the wire wrapping foot at the starting point, so that the enameled wire is in a small tension range after the wire enters the skeleton body, and after the winding step rotates to 0.5 turns, the normal tension is set in the program. At this time, the enameled wire at the wrapping foot will not be pulled out and cause wire breakage, thereby improving the problem of no conduction after winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is one of the prior art schematic diagrams;

[0032] Figure 2 This is the second schematic diagram of the prior art;

[0033] Figure 3 It is a schematic diagram of the winding position of the present invention;

[0034] Figure 4 It is the enameled wire structure of different products;

[0035] Figure 5 It is the second structure of enameled wire of different products. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings.

[0037] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0040] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] Example:

[0043] A wire hanging method for a winding machine with foot wrapping and no pre-pressure, comprising a wire starting step, a wire winding step, and a wire tailing step, wherein the wire starting step includes a step before and a step after the wire pulling.

[0044] like Figure 3 As shown, before pulling the wire: the wire nozzle is controlled to move to the first position 7 to fix the end of the enameled wire at the first position 7; wherein the first position 7 refers to the upper end of the soldering point of the first PIN; in practice, the end of the enameled wire is always no lower than the plane of the first position 7 to prevent the wire tail from shrinking;

[0045] Control the guide pin rod to turn outward and pull the enameled wire to the second position 8; wherein the second position 8 refers to the lower end of the soldering point of the first PIN pin;

[0046] The guide pin rod is controlled to reset and move to the third position 9, so that the enameled wire is pulled to the third position 9; wherein the third position 9 refers to the upper end of the convex point position of the skeleton body close to the first PIN pin;

[0047] After pulling the wire: pull the wire and hang the enameled wire at the fourth position 10, and control the tension of the enameled wire to a low tension value; wherein the fourth position 10 refers to the lower end of the convex point position of the skeleton body close to the first PIN needle, and the fourth position 10 is relative to the convex point on the surface of the PIN needle;

[0048] In this embodiment, the low tension value means that the enameled wire is in a state of extremely low tension after entering the skeleton body, and the enameled wire is not subjected to stress at this time.

[0049] Winding step: pulling the enameled wire from the fourth position 10 onto the workpiece and starting winding;

[0050] In the winding step, after winding half a circle, set the enameled wire tension value in the program to normal tension.

[0051] Tail wire step: After winding, pull the enameled wire from the workpiece to the fifth position 11 and hang it on the fifth position 11. The fifth position 11 refers to the lower end of the protrusion position of the skeleton body near the second PIN pin. The fifth position 11 is the protrusion relative to the surface of the PIN pin.

[0052] Control the needle guide rod to move to the sixth position 12, so that the enameled wire is pulled to the sixth position 12; wherein the sixth position 12 refers to the upper end of the protrusion position of the skeleton body close to the second PIN needle;

[0053] Control the needle guide rod to move to the seventh position 13, so that the enameled wire is pulled to the seventh position 13; wherein the seventh position 13 refers to the lower end of the soldering point position of the second PIN needle;

[0054] Control the needle guide rod to move to the eighth position 14, so that the enameled wire is pulled to the eighth position 14; wherein the eighth position 14 refers to the upper end of the soldering point position of the second PIN needle;

[0055] Wrap the remaining thread around the wire and pull it out.

[0056] The present invention uses fingers to fix the thread end, moves the wire nozzle to the first position 7 first, then turns the guide needle rod outward, and the enameled wire enters the second position 8 of the welding area, and the guide needle rod returns to its position and moves to the third position 9; after moving the wire nozzle between the two PIN needles, use fingers to pull the wire; after the wire pulling is OK, proceed to the fourth position 10 to hang the bump step. At this time, the tension needs to be adjusted as small as possible, and the enameled wire must not be subjected to force, otherwise it will affect the position of the remaining wire in the first position 7 to change. After the bump is hung OK, the wire is wound. After the winding is completed, the tail wire is wrapped around the foot, first entering from the fifth position 11, hanging the bump, and then from the sixth position 12 to the seventh position 13 area. At this time, the guide needle rod does not need to be turned outward, and the enameled wire can be directly entered into the eighth position 14, and finally wrapped around the finger part of the remaining wire to pull the wire.

[0057] The foot binding process of the present invention is divided into two steps:

[0058] (1) As for the starting line, it is divided into before pulling the wire and after pulling the wire. Before pulling the wire, the tension value is considered according to the normal strength of the enameled wire. After pulling the wire, the present invention reduces the tension to a relatively small state, keeps the enameled wire in a state without stress, and prevents the undesirable phenomenon of a wireless tail state. For some more special products, other auxiliary materials can also be used to increase some resistance, such as pins, bumps, etc. The purpose is to make the enameled wire pass through some bends to achieve the effect of fixing the wire end; such as Figure 4 and Figure 5 As shown, the ninth position 16 and the tenth position 17 serve as the starting points of the enameled wires of different products;

[0059] (2) For the tail line, there is no need to consider the distinction between the front and back of the line, and it has no effect on the foot wrapping and the length of the remaining line.

[0060] A workpiece skeleton for winding feet of a winding machine for hanging wire without pre-pressure comprises a skeleton body and two PIN needles, wherein the first PIN needle is provided with a first position 7 and a second position 8, wherein the first position 7 serves as the starting point of the enameled wire, and the second position 8 serves as the welding point for the starting point of the enameled wire; the first PIN needle is provided with a seventh position 13 and an eighth position 14, wherein the seventh position 13 serves as the welding point for the tail wire of the enameled wire, and the eighth position 14 serves as the end point of the enameled wire; the skeleton body is provided with a third position 9, a fourth position 10, a fifth position 11 and a sixth position 12, wherein the third position 9 serves as the starting point for starting and pulling the wire, and the fourth position 10 serves as a transition area before the enameled wire is wound, and the tension of the enameled wire is a low tension value starting from the fourth position 10, the fifth position 11 serves as a transition area after winding, and the sixth position 12 serves as a transition area after winding.

[0061] A wire winding machine foot wrapping and pre-pressure-free wire hanging system includes an execution module for controlling the eversion, reset and movement of a guide needle rod; and a tension adjustment module for adjusting the tension of the enameled wire to a normal value after winding half a circle.

[0062] A winding machine comprises a workpiece frame for winding machine feet and pre-pressing-free wire hanging, and a winding machine feet and pre-pressing-free wire hanging system.

[0063] This invention addresses the issues of enameled wire overlap and damage during winding and winding in fully automatic winding machines, as well as post-weld defects caused by improper wire tail length. By improving the winding and wire pulling steps, it avoids damage caused by preloading devices and reduces labor and costs. This method is applicable to a variety of products, saving time, reducing costs, and optimizing the welding and bending processes. Adjusting the tension solves wire breakage and derailment.

[0064] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A method for hanging wire on a winding machine without pre-pressing, characterized in that: The following steps are included: Line drawing steps: including before and after pulling the line; Before pulling the wire: the wire nozzle is controlled to move to the first position (7), and the end of the enameled wire is fixed at the first position (7); wherein the first position (7) refers to the upper end of the soldering point position of the first PIN needle; Control the guide pin rod to turn outward, and pull the enameled wire to the second position (8); wherein the second position (8) refers to the lower end of the soldering point position of the first PIN pin; The guide pin rod is controlled to reset and move to a third position (9), so that the enameled wire is pulled to the third position (9); wherein the third position (9) refers to the upper end of the convex point position of the skeleton body close to the first PIN pin; After pulling the wire: pulling the wire and hanging the enameled wire at the fourth position (10), controlling the tension value of the enameled wire to be a low tension value; wherein the fourth position (10) refers to the lower end of the convex point position of the skeleton body close to the first PIN needle, and the fourth position (10) is the convex point relative to the surface of the PIN needle; Winding step: pulling the enameled wire from the fourth position (10) onto the workpiece and starting winding; Tail wire step: After winding, the enameled wire is pulled from the workpiece to the fifth position (11) and hung on the fifth position (11); wherein the fifth position (11) refers to the lower end of the convex point position of the skeleton body close to the second PIN needle, and the fifth position (11) is the convex point relative to the surface of the PIN needle; Controlling the needle guide rod to move to the sixth position (12), so that the enameled wire is pulled to the sixth position (12); wherein the sixth position (12) refers to the upper end of the convex point position of the skeleton body close to the second PIN needle; Controlling the needle guide rod to move to the seventh position (13), so that the enameled wire is pulled to the seventh position (13); wherein the seventh position (13) refers to the lower end of the soldering point position of the second PIN needle; Controlling the needle guide rod to move to the eighth position (14), so that the enameled wire is pulled to the eighth position (14); wherein the eighth position (14) refers to the upper end of the soldering point position of the second PIN needle; Wrap the remaining thread around the wire and pull it out.

2. A method for hanging wire on a winding machine without pre-stressing according to claim 1, characterized in that: The end of the enameled wire is always no lower than the plane where the first position (7) is located.

3. A method for hanging wire on a winding machine without pre-pressing according to claim 1, characterized in that: The low tension value means that the enameled wire is in a state of extremely low tension after entering the skeleton body, and the enameled wire is not subjected to stress at this time.

4. A method for hanging wire on a winding machine without pre-stressing according to claim 1, characterized in that: In the winding step, after winding half a circle, set the enameled wire tension value in the program to normal tension.

5. A workpiece frame for winding machine with pre-load-free wire hanging, characterized by: A method for hanging wire without pre-stressing the winding foot of a winding machine as described in any one of claims 1 to 4 comprises a skeleton body and two PIN needles, the first PIN needle is provided with a first position (7) and a second position (8), the first position (7) serves as the starting point of the enameled wire, and the second position (8) serves as the welding point of the starting line of the enameled wire; the first PIN needle is provided with a seventh position (13) and an eighth position (14), the seventh position (13) serves as the welding point of the tail line of the enameled wire, and the eighth position (14) serves as the end point of the enameled wire; the skeleton body is provided with a third position (9), a fourth position (10), a fifth position (11), and a sixth position (12), the third position (9) serves as the starting point of the wire pulling, the fourth position (10) serves as the transition area before the enameled wire is wound, the tension of the enameled wire is a low tension value from the fourth position (10), the fifth position (11) serves as the transition area after the winding, and the sixth position (12) serves as the transition area after the winding.

6. A wire winding machine foot wrapping and pre-load-free wire hanging system, characterized by: The method for hanging a wire on a winding machine without pre-stressing is applied to any one of claims 1 to 4, comprising: an execution module for controlling the eversion, resetting, and movement of the guide needle rod; The tension adjustment module is used to adjust the tension of the enameled wire to a normal value after winding half a circle.

7. A winding machine, characterized in that: It includes a workpiece skeleton for winding machine foot wrapping and pre-stressing-free wire hanging as described in claim 5, and it includes a winding machine foot wrapping and pre-stressing-free wire hanging system as described in claim 6.

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