CN212257040U - Fine enameled wire painting mold - Google Patents

Abstract

The utility model provides a micro enameled wire painting mold, which comprises a core mold, wherein the core mold is coated and fixed at the central position of a mold base, the central part of one end of the mold base is processed to form an inlet section, the tail end of the inlet section is provided with a liquid storage cavity, the liquid storage cavity is communicated with the core mold in a butt joint way, the central part of the other end of the mold base is processed to form an outlet section, and the outlet section is in butt joint with the outlet end of the core mold; the depth of the inlet section is less than the depth of the outlet section. The mold can be used for painting micro wires, further, the automatic production of enameled wires is realized by matching with an automatic painting production line, and the mold is particularly suitable for the production requirement of micro wires with the diameter smaller than 0.1 mm.

Description

Fine enameled wire painting mold

Technical Field

The utility model belongs to enameled wire japanning mould field especially relates to fine enameled wire japanning mould.

Background

At present, the common fine enameled wire painting mainly has two different modes:

the first method is as follows: and (4) adopting a felt painting mode. The main disadvantages of this method in painting are firstly, the coating is not uniform, and the coating thickness cannot be guaranteed; secondly, in the process of painting the felt, because the conducting wire needs to penetrate through the felt, the friction resistance is large, the tensile strength of the micro-wire is low, and the micro-wire is easy to break by pulling; thirdly, because the diameter of the micro-wire is small and the micro-wire is easy to break, the linear speed of painting cannot be improved and the painting efficiency is low due to the adoption of felt painting.

The second method comprises the following steps: the polycrystalline painting mold, such as the painting mold for the fine enameled wire disclosed in CN 109887683 a, has the main disadvantages that, firstly, in the painting process, the fine wire is led out from the inlet section to the outlet section of the mold, the length of the inlet section is longer, paint liquid is easy to gather in the section, the resistance of the fine wire passing through the mold is increased, and the fine wire is easy to be broken, especially for the enameled wire with the diameter less than 0.02mm, the breakage phenomenon is easy to occur; secondly, in the processing process of the die, the die sleeve needs to be processed firstly, and then the die core unit is assembled in the die sleeve, so that the processing and manufacturing process is relatively complex and cannot adapt to the processing and manufacturing of small-size dies; thirdly, the above-mentioned mold has a large size, requires a large installation space, and cannot be adapted to the requirement of high-density fine enameled wire automatic production.

SUMMERY OF THE UTILITY MODEL

For solving above technical problem, the utility model provides a fine enameled wire japanning mould, this mould can be used for the japanning of minium line, and then cooperates the automated production that the automatic japanning production line realized the enameled wire, is particularly useful for the production needs of the minium line that the diameter is less than below 0.02 mm.

In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the micro enameled wire painting mold comprises a core mold, wherein the core mold is fixed at the central position of a mold base in a coating mode, the central position of one end of the mold base is processed to form an inlet section, the tail end of the inlet section is provided with a liquid storage cavity, the liquid storage cavity is in butt joint and communicated with the core mold, the central position of the other end of the mold base is processed to form an outlet section, and the outlet section is in butt joint with the outlet end of the core mold; the depth of the inlet section is less than the depth of the outlet section.

The entrance section adopts the taper hole structure, and the tip and the stock solution chamber butt joint of its taper hole structure, and the value of the entrance taper angle N of taper hole structure is 30~ 150.

The depth value of the inlet section is 0.2-2 mm.

The depth value of the liquid storage cavity is 0.1-3 mm.

The outlet section adopts a taper hole structure, and the small end of the taper hole structure is in butt joint with the outlet of the core mold.

The thickness value of a tail wall formed between the outlet tail end of the outlet section and the outer circle of the die holder is 0.2-1 mm.

The outer circle of the die holder is provided with a positioning ladder, one end of the outer circle of the die holder, which is located at the inlet section, is provided with a chamfer, and the cone where the chamfer is located is provided with an overflow groove.

The core mold is made of polycrystalline diamond, a plurality of sections of painting holes which are connected in a transition mode are machined in the center of the core mold and comprise a first conical section, and the tail portion of the first conical section is connected with the straight-wall hole section in a transition mode through a second conical section.

The aperture of the core mold is 0.02-0.10 mm.

When painting, the micro-fine wire penetrates through the inlet section and sequentially penetrates through the liquid storage cavity, the core mold and the outlet section;

when the die is manufactured, the core die and the die holder are integrally sintered and molded, and then the die holder is machined and molded.

The utility model discloses there is following beneficial effect:

1. compare with current painting mould, painting mould improve current line mode of crossing, through with the micro-wire from the little entry section of degree of depth, pull out by the export section after passing the mandrel, great reduction at this in-process the micro-wire is passing the frictional resistance that the mould in-process received, the effectual problem of preventing the micro-wire by the stretch-breaking.

2. Because the diameter of microwire is less, its unit length's surface coat volume is little, consequently, does not need to set up similar current bulky entrance storage paint cavity completely, the utility model discloses only need set up one section stock solution chamber at the afterbody of entrance and just can accomplish storage paint, and then the effectual viscous resistance that has reduced the lacquer liquid to the microwire.

3. Through adopting the utility model discloses a linear velocity of japanning in-process can be improved to the mould, and then has improved japanning efficiency.

4. The existing painting mold comprises a mold sleeve and a mold core, and the manufacturing process comprises the steps of sintering the mold core, machining the mold core, processing the mold sleeve matched with the mold core, and finally assembling the mold core into the mold sleeve.

And the utility model discloses after the mould adopted whole sintering shaping, carry out the manufacturing process of machining again, the circularity of concentricity and corresponding hole between assurance entry, stock solution chamber, wall hole section, second cone section and the first cone section that this process can be fine has finally guaranteed the concentricity that the micro-wire passed corresponding hole, has effectively prevented the circle and has beated, has guaranteed the japanning quality.

5. It can be convenient carry out threading work through the export section that sets up the afterbody, because, the diameter of microwire is only 0.02mm usually, consequently, need penetrate the microwire from the entry section at the initial stage of japanning, wear out from the export section, consequently, through the tapering design of export section, can be convenient for press from both sides tightly the end of microwire with the help of other anchor clamps at the export section, and then wear out.

6. The utility model discloses a painting mould can adapt to the japanning that the diameter only has 0.02mm microwire, and then has strengthened its adaptability.

7. The utility model discloses a painting mould's overall dimension is little, and shared installation space is little, and its biggest excircle size can be controlled below 8mm, and length also can be controlled below 8mm, and then has reduced its installation space. The high-density enameled wire can be well adapted to a high-density production line, and the production efficiency of the enameled wire is improved.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a front view of the present invention.

Fig. 2 is a view from P-P of fig. 1 according to the present invention.

Fig. 3 is a cross-sectional view of the present invention with angle marks.

Fig. 4 is an enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: the device comprises an inlet section 1, a liquid storage cavity 2, an overflow groove 3, a positioning ladder 4, an outlet section 5, a tail wall 6, a core mold 7, a chamfer 8 and a mold base 9;

wall hole section 701, second taper section 702, first taper section 703.

Detailed Description

The following describes embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1-4, the micro enameled wire painting mold comprises a core mold 7, wherein the core mold 7 is fixed at the center of a mold base 9 in a wrapping manner, an inlet section 1 is formed at the center of one end of the mold base 9 in a machining manner, a liquid storage cavity 2 is arranged at the tail end of the inlet section 1, the liquid storage cavity 2 is communicated with the core mold 7 in a butt joint manner, an outlet section 5 is formed at the center of the other end of the mold base 9 in a machining manner, and the outlet section 5 is in butt joint with the outlet end of the core; the depth of the inlet section 1 is less than the depth of the outlet section 5. Through adopting the painting mould of above-mentioned structure, it changes current painting mould, when having improved the japanning quality, has improved painting efficiency, moreover the effectual cost of manufacture that has reduced.

Further, entry section 1 adopts the taper hole structure, and the tip of its taper hole structure docks with stock solution chamber 2, and the value of the entry taper angle N of taper hole structure is 30~ 150. The frictional resistance of the micro-wires passing through the die can be effectively reduced by the inlet section 1.

Further, the depth value of the inlet section 1 is 0.2-2 mm. The accumulation of excessive paint liquid at the inlet section 1 is effectively reduced through the depth value, and the viscous force is reduced to a certain extent.

Further, the depth value of the liquid storage cavity 2 is 0.1-3 mm. Paint storage can be completed by adopting the liquid storage cavity 2 with smaller volume, and the viscous resistance of paint liquid to the micro-wires is further effectively reduced. This is significantly different and different from the prior art which uses a large cone-shaped end as the inlet section and a large amount of paint storage.

Further, the outlet section 5 adopts a taper hole structure, and the small end of the taper hole structure is in butt joint with the outlet of the core mould 7. The outlet section 5 here serves primarily for facilitating threading.

Furthermore, the thickness value of a tail wall 6 formed between the outlet tail end of the outlet section 5 and the outer circle of the die holder 9 is 0.2-1 mm. The thickness of the tail wall 6 is described herein primarily to ensure the structural strength of the tail portion and to prevent it from being crushed during installation.

Furthermore, a positioning step 4 is processed at the position of the outer circle of the die holder 9, a chamfer 8 is processed at the end of the outer circle of the die holder 9, which is located at the inlet section 1, and an overflow groove 3 is processed on the cone where the chamfer 8 is located. The paint liquid scraped in the painting process can be collected through the overflow groove 3, so that the paint liquid is prevented from overflowing.

Further, the core mold 7 is made of polycrystalline diamond, a plurality of sections of painting holes which are connected in a transition manner are processed in the central portion of the core mold 7, the painting holes include a first taper section 703, and the tail portion of the first taper section 703 is connected in a transition manner with the straight-wall hole section 701 through a second taper section 702. The core die 7 has wear resistance, can ensure good roundness after being processed, has high precision of the processed round hole, and can be well suitable for painting micro-wires with the diameter of 0.02-0.10 mm.

Further, the aperture of the core mold 7 is 0.02-0.10 mm. The pore size can be well adapted to the painting production of the micro-wire.

Further, when painting, the micro-fine line penetrates through the inlet section 1 and sequentially penetrates through the liquid storage cavity 2, the core mold 7 and the outlet section 5; through foretell threading mode, abandoned traditional thinking mode and limitation, when having guaranteed japanning homogeneity and quality, improve japanning efficiency and linear velocity, effectively reduced frictional resistance moreover, prevented that it from being broken.

Further, during manufacturing, the core mold 7 and the mold base 9 are integrally sintered and molded, and then the mold base 9 is machined and molded. Through the forming preparation mode, the machining size precision is guaranteed, the machining process is simplified, the machining efficiency is improved, and the machining cost is reduced.

Furthermore, the maximum outer circle size of the die holder 9 can be controlled to be below 8mm, and the length of the die holder can also be controlled to be below 8mm, so that the installation space of the die holder is reduced.

Further, the taper angle P of the first taper segment 703 takes the following values:

the taper angle Q of the second section 702 takes the value: 110-

The diameter R of the straight-walled bore section 701 takes the values: 30-80 degree

The utility model discloses a working process and principle do:

firstly, the mould is installed on a painting production line, then, the micro-wires are led in from the inlet section 1 of the mould and sequentially pass through the liquid storage cavity 2, the core mould 7 and the outlet section 5, and are stably led to pass through the core mould 7 through subsequent traction, so that the painting process is realized.

Claims (10)

1. Fine enameled wire japanning mould, its characterized in that: the die comprises a core die (7), wherein the core die (7) is fixed at the central position of a die holder (9) in a coating manner, the central part of one end of the die holder (9) is processed to form an inlet section (1), the tail end of the inlet section (1) is provided with a liquid storage cavity (2), the liquid storage cavity (2) is communicated with the core die (7) in a butt joint manner, the central part of the other end of the die holder (9) is processed to form an outlet section (5), and the outlet section (5) is in butt joint with the outlet end of the core die (7); the depth of the inlet section (1) is less than the depth of the outlet section (5).

2. The fine enameled wire enamel mold according to claim 1, wherein: entrance section (1) adopts the taper hole structure, and its taper hole structure's tip and stock solution chamber (2) dock, and the value of taper hole structure's entrance angle of taper N is 30~ 150.

3. The fine enameled wire enamel mold according to claim 1 or 2, wherein: the depth value of the inlet section (1) is 0.2-2 mm.

4. The fine enameled wire enamel mold according to claim 1, wherein: the depth value of the liquid storage cavity (2) is 0.1-3 mm.

5. The fine enameled wire enamel mold according to claim 1, wherein: the outlet section (5) adopts a taper hole structure, and the small end of the taper hole structure is in butt joint with the outlet of the core mould (7).

6. The fine enameled wire enamel mold according to claim 1 or 5, wherein: the thickness value of a tail wall (6) formed between the outlet tail end of the outlet section (5) and the outer circle of the die holder (9) is 0.2-1 mm.

7. The fine enameled wire enamel mold according to claim 1, wherein: the positioning device is characterized in that a positioning ladder (4) is machined at the outer circle position of the die holder (9), a chamfer (8) is machined at one end, located at the inlet section (1), of the outer circle of the die holder (9), and an overflow groove (3) is machined on a cone where the chamfer (8) is located.

8. The fine enameled wire enamel mold according to claim 1, wherein: the core mold (7) is made of polycrystalline diamond, a plurality of sections of painting holes which are connected in a transition mode are machined in the center of the core mold (7) and comprise a first conical section (703), and the tail portion of the first conical section (703) is connected with a straight-wall hole section (701) in a transition mode through a second conical section (702).

9. The fine enameled wire enamel mold according to claim 1, wherein: the pore diameter of the core mould (7) is 0.02-0.10 mm.

10. The fine enameled wire enamel mold according to claim 1, wherein: when painting, the micro-wire penetrates from the inlet section (1) and sequentially penetrates through the liquid storage cavity (2), the core mold (7) and the outlet section (5);

when in manufacturing, the core die (7) and the die holder (9) are integrally sintered and formed, and then the die holder (9) is machined and formed.

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