WO2014194475A1

WO2014194475A1 - Solder-piercing feed wheel

Info

Publication number: WO2014194475A1
Application number: PCT/CN2013/076727
Authority: WO
Inventors: 罗艺
Original assignee: Luo Yi
Priority date: 2013-06-04
Filing date: 2013-06-04
Publication date: 2014-12-11

Abstract

A solder-piercing feed wheel. The solder- piercing feed wheel comprises a blade (10) and clamping wheels (20) capable of clamping the blade (10). The number of the clamping wheels (20) is two. Sawtooth-shaped cutter points (11) are disposed on the rim of the blade (10). The clamping wheels (20) are used to clamp the blade (10) to only allow the cutter points (11) of the blade to be exposed; rigidity of the blade (10) is ensured through the thickness of the clamping wheels (20), and the blade is not bent and cannot easily be distorted. In addition, during work, the cutter points (11) align to the center line of a solder wire, and after the cutter points (11) pierce said solder wire, the edges of the clamping wheels (20) abut against the solder wire, thereby preventing puncture depth of the cutter points (11) piercing the solder wire from exceeding a standard, thus enabling the pierced holes to be connected, and preventing blockage of solder feed passages.

Description

Broken tin knife wheel

Technical field

The utility model belongs to the field of welding equipment, in particular to a tin wire breaking device for welding.

Background technique

In the prior art, the solder wire needs to be broken in the SMT soldering process to ensure the pressure release of the high temperature solder resist inside the solder wire. Under normal circumstances, the broken tin wheel uses the integral blade to break the tin, and the rigidity of the blade is extremely required. High, usually made of special steel imported from Japan, the cost is very high, and although the blade is rigid, but it is easy to be twisted during long-term use, the blade can not form a straight line in the solder wire. If the thickness of the blade is increased, although the rigidity requirement is met, the material cost and the processing cost are still increased, and the processed blade blade is too wide to pierce the solder wire, thereby affecting the winding ability of the tin wire. It is easy to cause the tin channel to be blocked during the winding process.

technical problem

The purpose of the utility model is to provide a broken tin wheel, which aims to solve the problem of insufficient rigidity of the blade in the prior art.

Technical solution

The utility model is realized as follows, a broken tin cutter wheel, the broken tin cutter wheel comprises a blade and a clamping wheel capable of clamping the blade, the clamping wheel is two pieces, and the edge of the blade has a zigzag shape Blade.

Preferably, the pin wheel diameter is smaller than the blade diameter, and the difference between the pin wheel and the blade is smaller than the diameter of the solder wire.

Preferably, the blade has an isosceles triangle at the edge of the blade.

Preferably, the blade has a right-angled triangle at the edge of the blade, and an extension line of one side of the right-angled triangle vertically intersects the center of the blade, and the right-angled triangle has the smallest acute angle to form the sharp edge of the blade outward. .

Preferably, the blade has a sharp cross section formed by a single bevel.

Preferably, the blade has a blade cross section that is a sharp isosceles triangle formed by a double bevel.

Beneficial effect

According to the above technical solution, the clamping wheel used in the present invention clamps the blade to expose only the blade edge of the blade, and fully utilizes the thickness of the clamping wheel to ensure the rigidity of the blade, which not only does not bend and is not easy to occur. Distorted deformation, during the working process, the blade strikes the center line of the positive solder wire, and after the solder wire is penetrated, the edge of the clamping wheel abuts against the solder wire, preventing the blade from piercing the depth of the solder wire to exceed the standard Connect the broken tin holes to avoid blocking the tin channel.

DRAWINGS

1 is a perspective view of a broken tin wheel provided by the present invention;

2 is a perspective view of a blade provided by the present invention;

3 is a schematic view of a blade provided by an embodiment of the present invention;

4 is a schematic view of a blade provided by an embodiment of the present invention;

Figure 5 is a schematic view of a blade provided by an embodiment of the present invention;

Figure 6 is a schematic view of a blade provided by an embodiment of the present invention;

Embodiments of the invention

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to FIG. 1 and FIG. 2, the embodiment provides a broken tin wheel, the blade includes a blade 10 and a pinch wheel 20 for clamping the blade 10, and the pinch wheel 20 is two. The blade 10 has a serrated blade edge 11 having a diameter smaller than the diameter of the blade 10, and the difference between the diameter of the pinch wheel 20 and the blade 10 is smaller than the diameter of the solder wire. According to the above technical solution, the clamping wheel 20 used in the present invention clamps the blade 10 to expose only the blade edge 11 of the blade 10, and fully utilizes the thickness of the clamping wheel 20 to ensure the rigidity of the blade 10, which will not When the bending occurs, the distortion is not easily generated. During the working process, the blade 11 is aligned with the center line of the positive solder wire. After the solder wire is penetrated, the edge of the clamping wheel 20 abuts against the solder wire to prevent the blade from being broken. 11 The depth of the penetration of the solder wire exceeds the standard, so that the broken tin hole is connected to avoid blocking the tin passage.

Referring to FIG. 3, the present embodiment may employ a blade having a blade edge 11 having an isosceles triangle at the edge of the blade 10.

Referring to FIG. 4, in this embodiment, a blade 11 having a blade 11 having a right-angled triangle at an edge of the blade 10 and an extension of one side of the right triangle vertically intersecting the blade 10 may be used. The center of the circle, the smallest acute angle of the right triangle forms the sharp portion of the blade 11 outward.

Referring to Fig. 5, in the present embodiment, a blade having a blade 11 having a sharp cross section formed by a single bevel may be used.

Referring to Fig. 6, the present embodiment may employ a blade having a blade end 11 having a sharp-shaped isosceles triangle formed by a double bevel.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the present invention. The scope of protection of utility models.

Claims

A broken tin wheel includes a blade and a pinch wheel that can clamp the blade, the pin wheel is two pieces, and the blade edge has a serrated blade edge.
A breaker wheel according to claim 1, wherein said pin wheel diameter is smaller than said blade diameter, and said caliper has a diameter difference from said blade that is smaller than a diameter of said solder wire.
A breaker wheel according to claim 2 wherein the blade has an isosceles triangle at the edge of the blade.
A tin-breaking wheel according to claim 2, wherein the blade has a right-angled triangle at the edge of the blade, and an extension of one side of the right-angled triangle vertically intersects the center of the blade. The smallest acute angle of the right triangle forms the sharp edge of the blade outward.
A breaker wheel according to claim 2, wherein the blade has a sharp cross section formed by a single bevel.
A breaker wheel according to claim 2, wherein the blade has a sharp cross-section of a sharp isosceles triangle formed by a double bevel.