Adjustable voice coil belting mechanism

Abstract

The utility model relates to voice coil production equipment, in particular to an adjustable voice coil belting mechanism which comprises a rack, an upper die unit, a lower die unit and a material belt traction unit, the upper die unit, the lower die unit and the material belt traction unit are arranged on the rack, a rotatable material pressing roller is arranged in the upper die unit, and a feeding roller which is driven to rotate actively is arranged in the lower die unit. The axis of the feeding roller is parallel to the axis of the pressing roller, and the feeding roller is located under the pressing roller. The lower die unit comprises a die holder capable of vertically moving on the rack and a lifting device for driving the die holder to vertically move; the feeding roller is arranged on the die holder, and a motor used for driving the feeding roller is further arranged on the die holder. And a detachable charging barrel is further coaxially arranged on the feeding roller in a sleeving manner. According to the utility model, for voice coils with different external diameter specifications, rapid compatibility can be realized without replacing the lower die, the work is more efficient, and the equipment cost and the labor cost are saved.

Description

Technical Field

[0001] The utility model relates to voice coil production equipment, in particular to an adjustable voice coil tape wrapping mechanism. Background Art

[0002] Using insulating paper tape to wrap the outer wall of the voice coil is an essential process in voice coil manufacturing. Since the voice coil itself is mostly a cylindrical structure, the industry currently uses the method of round-to-round cooperation between the upper mold and the lower mold to wrap the voice coil.

[0003] For example, a rotatable pressing roller is set on the upper mold, and a feeding roller that is driven to rotate actively is set on the lower mold. The voice coil is passed through the feeding roller, and the end of the insulating paper is adhered to the voice coil. The voice coil is driven by the feeding roller to rotate synchronously to wind the insulating paper around the outer wall of the voice coil. In this process, the pressing roller presses the insulating paper against the outer wall of the voice coil in a circle-on-circle manner to ensure that the insulating paper is tightly wound around the outer wall of the voice coil.

[0004] The applicant has found in practice that the voice coil wrapping tape in the above-mentioned prior art has the defect of poor compatibility of the lower mold when facing voice coils with different outer diameter specifications. Specifically, due to the different outer diameter specifications of the voice coil, if the pressing roller needs to press the insulating paper against the outer wall of the voice coil in a round-to-round manner, the corresponding lower mold needs to be replaced.

[0005] Obviously, solving the above problem by simply replacing the lower mold is not efficient, and it increases equipment costs and labor costs. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, the utility model provides an adjustable voice coil tape wrapping mechanism, which specifically adopts the following technical solutions.

[0007] The adjustable voice coil tape wrapping mechanism comprises a frame, an upper die unit, a lower die unit and a material tape traction unit arranged on the frame, a rotatable pressing roller is arranged in the upper die unit, and a feeding roller driven to actively rotate is arranged in the lower die unit, the axes of the feeding roller and the pressing roller are parallel, and the feeding roller is located just below the pressing roller;

[0008] The lower die unit comprises a die base which can move vertically on a frame, and a lifting device which drives the die base to move vertically;

[0009] The feeding roller is arranged on the die base, and the die base is also provided with a motor for driving the feeding roller;

[0010] A detachable material barrel is coaxially sleeved on the feeding roller.

[0011] Preferably, a vertically extending slide rail is provided on the frame, and a sliding block forming a sliding pair with the slide rail is provided on the mold base.

[0012] Furthermore, the slide rails are provided with a pair of left and right columns, and the frame is provided with a avoidance window located between the slide rails, and the motor just passes through the avoidance window.

[0013] As an improvement of one aspect of the above technical solution, the barrel is provided with a plurality of replaceable barrels, each barrel having a different outer diameter.

[0014] As another improvement of the above technical solution, the outer circumferential surface of the feeding roller is provided with a key / groove arranged parallel to the axial direction, and the inner circumferential surface of the barrel is provided with a corresponding groove / key, and the feeding roller and the barrel form a key connection.

[0015] Furthermore, a magnetic ring is provided at one end of the feeding roller located at the mold base, and the barrel matched with the feeding roller is adsorbed by the magnetic ring to form a detachable connection.

[0016] As another improvement of the above technical solution, the lifting device is a servo cylinder or a servo electric cylinder.

[0017] Compared with the prior art, the beneficial effect of the utility model is that the height of the lower mold unit in the frame can be set and adjusted by the lifting device, so that the pressing roller can press the insulating paper against the outer wall of the voice coil in a round-to-round manner for voice coils with different outer diameters. Rapid compatibility can be achieved without replacing the lower mold, which makes the work more efficient and saves equipment costs and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the lower die unit in the utility model. DETAILED DESCRIPTION

[0020] like Figure 1 and Figure 2 As shown, the utility model provides an adjustable voice coil tape wrapping mechanism in one embodiment, including a frame 1, and an upper mold unit 2, a lower mold unit 3, and a material tape traction unit 4 arranged on the frame 1, a rotatable pressing roller 21 is arranged in the upper mold unit 2, and a feeding roller 31 driven to actively rotate is arranged in the lower mold unit 3, the axes of the feeding roller 31 and the pressing roller 21 are parallel, and the feeding roller 31 is located just below the pressing roller 21;

[0021] The lower mold unit 3 includes a mold base 301 that can move vertically on the frame 1, and a lifting device 302 that drives the mold base 301 to move vertically;

[0022] The feeding roller 31 is arranged on the die base 301, and the die base 301 is also provided with a motor 32 for driving the feeding roller 31;

[0023] A detachable material barrel 33 is coaxially sleeved on the feeding roller 31 .

[0024] In the above embodiment, the tape traction unit 4 is mainly used to store the insulating tape and distribute the insulating tape to the voice coil on the loading roller 31, which can be achieved according to the conventional settings in the field, so it will not be described in detail.

[0025] In the above embodiment, the utility model can set and adjust the height of the lower mold unit in the frame 1 through the lifting device 302, so that the pressing roller 21 can press the insulating paper against the outer wall of the voice coil in a round-to-round manner for voice coils with different outer diameters. Rapid compatibility can be achieved without replacing the lower mold, which makes the work more efficient and saves equipment costs and labor costs.

[0026] In particular, considering that voice coils with different outer diameters are often designed with different inner diameters, in the above embodiment, the utility model can eliminate the assembly gap between voice coils with different outer diameters and the feeding roller 31 through the barrel 33 .

[0027] In another preferred embodiment, a vertically extending slide rail 11 is provided on the frame 1 , and a slider 34 forming a sliding pair with the slide rail 11 is provided on the mold base 301 .

[0028] Preferably, the slide rails 11 are provided with a pair of left and right columns, so as to obtain better stability. Meanwhile, for the reasonable optimization requirements of the structure, the frame 1 is provided with a avoidance window 12 located between the slide rails 11, and the motor 32 just passes through the avoidance window 12.

[0029] As an improvement of the above technical solution, the barrel 33 is provided with a plurality of replaceable barrels, each of which has a different outer diameter so as to adapt to voice coils with different inner diameter specifications.

[0030] As another improvement of the above technical solution, the outer circumferential surface of the feeding roller 31 has a key / groove arranged parallel to the axial direction, and the inner circumferential surface of the barrel 33 is provided with a corresponding groove / key, and the feeding roller 31 and the barrel 33 form a key connection.

[0031] Furthermore, a magnetic ring 35 is provided at one end of the feeding roller 31 located at the mold base 301 , and the barrel 33 matched with the feeding roller 31 is adsorbed by the magnetic ring 35 to form a detachable connection.

[0032] As another improvement of the above technical solution, the lifting device 302 is a servo cylinder or a servo electric cylinder.

[0033] For those skilled in the art, the protection scope of the present invention is not limited to the details of the above-mentioned exemplary embodiments. Without departing from the spirit or basic characteristics of the present invention, the equivalent meanings and all changes in the protection scope made by those skilled in the art based on the requirements of the present invention should be included in the present invention.

Claims

1. An adjustable voice coil tape wrapping mechanism comprises a frame, and an upper die unit, a lower die unit and a tape traction unit arranged on the frame. A rotatable pressing roller is arranged in the upper die unit, and a feeding roller driven to actively rotate is arranged in the lower die unit. The axes of the feeding roller and the pressing roller are parallel, and the feeding roller is located just below the pressing roller. It is characterized in that The lower die unit comprises a die base which can move vertically on a frame, and a lifting device which drives the die base to move vertically; The feeding roller is arranged on the die base, and the die base is also provided with a motor for driving the feeding roller; A detachable material barrel is coaxially sleeved on the feeding roller.

2. The adjustable voice coil tape mechanism according to claim 1, characterized in that: A vertically extending slide rail is arranged on the machine frame, and a sliding block which forms a sliding pair with the slide rail is arranged on the mold base.

3. The adjustable voice coil tape mechanism according to claim 2, characterized in that: The slide rails are provided with a pair of left and right separated columns, and the frame is provided with a avoidance window located between the slide rails, and the motor just passes through the avoidance window.

4. The adjustable voice coil tape wrapping mechanism according to claim 1, 2 or 3, characterized in that: The barrels are provided with a plurality of replaceable ones, each barrel having a different outer diameter.

5. The adjustable voice coil tape wrapping mechanism according to claim 1, 2 or 3, characterized in that: The outer circumferential surface of the feeding roller is provided with a key / groove arranged parallel to the axial direction, and the inner circumferential surface of the barrel is provided with a groove / key corresponding thereto, so that the feeding roller and the barrel form a key connection fit.

6. The adjustable voice coil tape mechanism according to claim 5, characterized in that: A magnetic ring is arranged at one end of the feeding roller located at the die base, and a barrel matched with the feeding roller is adsorbed by the magnetic ring to form a detachable connection.

7. The adjustable voice coil tape wrapping mechanism according to claim 1, 2 or 3, characterized in that: The lifting device is a servo cylinder or a servo electric cylinder.

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