Coil winding die

Abstract

The utility model discloses a coil winding mold, and relates to the field of molds for manufacturing coils. The coil winding mold comprises a first mold base, a second mold base and a jig core connecting base which are coaxially arranged in sequence, a left baffle is arranged at the end, close to the second die holder, of the first die holder, a cylindrical inner supporting die core is arranged on the first die holder along a center shaft, and the end of the inner supporting die core protrudes out of the end face of the left baffle. A right baffle is arranged at the end, close to the left baffle, of the second die holder. A cylindrical elastic jig core is coaxially fixed to the end, close to the second die holder, of the jig core connecting base, the end, away from the jig core connecting base, of the elastic jig core is a winding end, a center hole matched with the end of the inner supporting die core is formed in the winding end in the axial direction, and a plurality of strip-shaped grooves are formed in the side wall of the winding end at intervals. The winding end penetrates through the second die holder and is used for wrapping the inner supporting die core. The coil winding mold can avoid the situation that the tail end is extruded and deformed when the coil is demolded.

Description

Technical Field

[0001] The utility model relates to the field of molds for manufacturing coils, in particular to a coil winding mold. Background Art

[0002] In the production process of some ultra-fine wire self-adhesive coils and stranded wire self-adhesive coils with a length of more than 10 mm, the self-adhesive enameled wire is mainly wound into a self-adhesive coil by a winding machine. The winding mold of the existing winding machine is usually divided into left and right parts, which are driven by left and right motors respectively for winding. After winding, the left and right parts of the mold are separated for coil demoulding.

[0003] For example, announcement number CN203103114U discloses a coil winding mold, which includes a core column, a first die base and a second die base. The first die base is provided with a guide hole, and the core column passes through the guide hole and abuts against the second truncated cone end surface of the second die base; after the coil is wound, the coil winding mold drives the core column to move backward along the guide hole through a linear drive device, so that the coil is automatically ejected. However, this type of coil winding mold has a disadvantage: since the core column is a rigid structure, when the coil is automatically demolded, the rigid core column will squeeze the tail end of the coil and cause deformation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a coil winding mould, which can prevent the tail end of the coil from being squeezed and deformed when the coil is demoulded.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A coil winding mold comprises a first mold base, a second mold base and a jig core connecting base which are coaxially arranged in sequence; a left baffle is provided at one end of the first mold base close to the second mold base, a cylindrical inner support mold core is provided on the first mold base along the central axis, and the end of the inner support mold core protrudes from the end face of the left baffle; a right baffle is provided at one end of the second mold base close to the left baffle; a cylindrical elastic jig core is coaxially fixed to one end of the jig core connecting base close to the second mold base, and the end of the elastic jig core away from the jig core connecting base is a winding end, the winding end is axially provided with a center hole adapted to the end of the inner support mold core, and a plurality of strip grooves are provided at intervals on the side walls of the winding end, and the winding end passes through the second mold base to cover the inner support mold core.

[0007] In some embodiments, a plurality of the strip-shaped grooves are arranged along the length direction of the elastic jig core.

[0008] Compared with the prior art, the present invention achieves at least the following beneficial effects:

[0009] When in use, the second mold base, the jig core connecting seat and the elastic jig core are driven to the left as a whole by the linear drive mechanism of the winding machine. When the winding end of the elastic jig core is moved to abut against the end face of the left baffle, the center hole of the elastic jig core covers the inner support mold core. At this time, the winding end of the elastic jig core has been stretched open; then the winding machine starts the winding operation, and the self-adhesive enameled wire is wound around the winding end. After the coil is wound, the second mold base, the jig core connecting seat and the elastic jig core are driven to the right as a whole by the linear drive mechanism of the winding machine. Since the winding end is provided with a strip groove, it will deform and shrink after being separated from the inner support mold core, so that the coil and the outer wall of the elastic jig core are not tightly attached together; finally, a linear drive mechanism controls the jig core connecting seat to drive the elastic jig core to move to the right, so that the coil can automatically separate from the elastic jig core. When the coil of the utility model is demolded, the elastic jig core shrinks, which can avoid extrusion and deformation of the tail end of the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0011] Figure 1 This is a schematic diagram of the structure of one of the embodiments of the present application;

[0012] Figure 2 for Figure 1 A front view of an embodiment;

[0013] Figure 3 for Figure 1 A schematic diagram of the winding state of the embodiment;

[0014] Figure 4 for Figure 1 A schematic structural diagram of an elastic jig core according to an embodiment.

[0015] The numbers in the figure are: 1, first die base; 11, rotating axis; 2, second die base; 21, shaft hole; 3, fixture core connecting seat; 4, left baffle; 41, hanging wire notch; 5, inner support die core; 6, right baffle; 7, elastic fixture core; 71, winding end; 8, center hole; 9, strip groove. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present application can be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided here to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0017] In the description of the present application, 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" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application 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 cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, or it can include the first and second features not being in direct contact but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0018] like Figures 1 to 4As shown, the coil winding mold of this embodiment includes a first mold base 1, a second mold base 2 and a jig core connecting base 3 which are coaxially arranged in sequence; a left baffle 4 is provided at one end of the first mold base 1 close to the second mold base 2, and further, a hanging wire notch 41 is provided on the side wall of the left baffle 4, and a cylindrical inner support mold core 5 is provided along the central axis on the first mold base 1, and the end of the inner support mold core 5 protrudes from the end face of the left baffle 4; a right baffle 6 is provided at one end of the second mold base 2 close to the left baffle 4; a cylindrical elastic jig core 7 is coaxially fixed to one end of the jig core connecting base 3 close to the second mold base 2, and the end of the elastic jig core 7 away from the jig core connecting base 3 is a winding end 71, and the winding end 71 is axially provided with a center hole 8 which is compatible with the end of the inner support mold core 5, and a plurality of strip grooves 9 are provided on the side wall of the winding end 71 at intervals. Furthermore, a plurality of strip grooves 9 are arranged along the length direction of the elastic jig core 7. Under normal conditions, the winding end 71 of the elastic jig core 7 will shrink due to the existence of the strip grooves 9. When the winding end 71 passes through the second mold base 2 to cover the inner support mold core 5, the winding end 71 is stretched open.

[0019] Furthermore, a rotating shaft 11 is provided at one end of the first mold base 1 away from the second mold base 2, and the rotating shaft 11 is connected to a first motor, and the first motor is used to drive the rotating shaft 11 to drive the first mold base 1 to rotate. The second mold base 2 and the jig core connecting seat 3 are integrally connected with a motor screw module and a second motor, and the motor screw module is used to drive the second mold base 2 and the jig core connecting seat 3 to move left and right as a whole, and the second motor is used to drive the second mold base 2 and the jig core connecting seat 3 to rotate as a whole.

[0020] Furthermore, the second mold base 2 is provided with an axial hole 21 for the elastic jig core 7 to pass through. The jig core connecting base 3 is connected with a cylinder, which is used to drive the jig core connecting base 3 to drive the elastic jig core 7 to move left and right along the axial hole 21.

[0021] The method of using the coil winding mold is as follows:

[0022] First, install the coil winding mold on the winding machine, and hang the self-adhesive enameled wire into the wire hanging notch 41 of the left baffle 4; secondly, the second die base 2, the elastic fixture core 7 and the fixture core connecting seat 3 are driven by the motor screw module of the winding machine to move to the left as a whole, and move to the central hole 8 of the elastic fixture core 7 to cover the inner support die core 5. At this time, the winding end 71 of the elastic fixture core 7 has been opened; then, the winding machine starts the winding operation, and the first die base 1, the second die base 2 and the fixture core connecting seat 3 rotate to make the self-adhesive enameled wire on the winding machine The enameled wire is wound around the winding end 71 of the elastic jig core 7. After the coil is wound, the second mold base 2, the elastic jig core 7 and the jig core connecting seat 3 are driven to move to the right as a whole by the motor screw module. Since the winding end 71 of the elastic jig core 7 is provided with a strip groove 9, it will shrink inward after being separated from the inner support mold core 5. At this time, the coil and the outer wall of the elastic jig core 7 are no longer tightly attached to each other; finally, a cylinder controls the jig core connecting seat 3 and the elastic jig core 7 to move to the right. At this time, the coil can automatically separate from the elastic jig core 7 to complete the unloading.

[0023] It should be understood that all the above embodiments are illustrative rather than restrictive, and any modifications, equivalent changes and modifications made by those skilled in the art to the specific embodiments described above under the conception of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A coil winding mold, characterized in that: The invention comprises a first die base (1), a second die base (2) and a jig core connecting base (3) which are coaxially arranged in sequence; a left baffle plate (4) is provided at one end of the first die base (1) close to the second die base (2); a cylindrical inner supporting die core (5) is provided on the first die base (1) along the central axis, and the end of the inner supporting die core (5) protrudes from the end surface of the left baffle plate (4); a right baffle plate (6) is provided at one end of the second die base (2) close to the left baffle plate (4); the jig core connecting base ( 3) A cylindrical elastic jig core (7) is coaxially fixed to one end close to the second mold base (2); the end of the elastic jig core (7) away from the jig core connecting seat (3) is a winding end (71); the winding end (71) is axially provided with a center hole (8) adapted to the end of the inner support mold core (5); and a plurality of strip grooves (9) are spaced apart on the side wall of the winding end (71); the winding end (71) passes through the second mold base (2) to cover the inner support mold core (5).

2. The coil winding mold according to claim 1, characterized in that: The plurality of strip-shaped grooves (9) are arranged along the length direction of the elastic jig core (7).

3. The coil winding mold according to claim 1, characterized in that: A rotating shaft (11) is provided at one end of the first mold base (1) away from the second mold base (2), and the rotating shaft (11) is connected to a first motor.

4. The coil winding mold according to claim 1, characterized in that: The second mold base (2) and the jig core connecting base (3) are integrally connected with a motor screw module and a second motor, the motor screw module is used to drive the second mold base (2) and the jig core connecting base (3) to move left and right as a whole, and the second motor is used to drive the second mold base (2) and the jig core connecting base (3) to rotate as a whole.

5. The coil winding mold according to claim 4, characterized in that: The second mold base (2) is provided with an axial hole (21) for the elastic jig core (7) to pass through.

6. The coil winding mold according to claim 5, characterized in that: The jig core connection seat (3) is connected to a cylinder, and the cylinder is used to drive the jig core connection seat (3) to drive the elastic jig core (7) to move left and right along the shaft hole (21).

7. The coil winding mold according to claim 1, characterized in that: The side wall of the left baffle plate (4) is provided with a wire hanging notch (41).

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