TWI602634B - Tin solution detection, supplement methods and devices - Google Patents

Description

Tin liquid detection, supplement method and device

The invention relates to a tin liquid detecting and replenishing method and device, in particular to a tin liquid detecting and replenishing method and device for liquid level detection of high temperature tin liquid surface and tin liquid replenishment after detection. .

According to the general inductance or transformer electronic components, because of the winding on the iron core, there is often a need to solder the wire end to the extreme after winding. In addition to the welding method, some of the welding is done with tin. The method is to achieve, and Zhanxi usually uses a tin furnace to heat the tin material to melt it, and then the iron core attached to the extreme end of the wire core after the winding is moved to the tin liquid surface of the tin furnace to adhere to the tin liquid. The method is the same; while the general tin furnace heats the tin material at a high temperature, on the one hand, because of oxidation into tin slag, on the other hand, because of the reduction after tinning, the operator must always pay attention to the change of the liquid level of the tin liquid, and the liquid level in the tin liquid is low. At a certain level, the tin rod is manually placed in a tin furnace to replenish the tin liquid, and since the tin material is in a high temperature state, the electronic components to be tinned are extremely small, and the precision of the tin is relatively high. Therefore, the electronic components to be tinned are usually automatically transferred by the automatic transfer clamp, and the tin-plated surface of the electronic component to be tinned is placed in a tin furnace for dipping, so each time it is transferred, The electronic components placed in the tin furnace are to be tinned A certain height, and the liquid surface height tin with electronic components must always be set to the height of the wetting surface, so that it can buildup of a suitable amount of liquid tin during the buildup wetting area.

In the prior art, since the liquid level of the tin liquid is below a certain level, artificial The method is to place the tin rod in the tin furnace to replenish the tin liquid. The operator must constantly monitor the tin level change of the tin furnace, so that the machine that the operator can control is quite limited; on the other hand, the tin rod is manually placed. Adding tin liquid in the tin furnace makes it difficult to control the amount of melting of the tin rod. Too much or too little will cause poor soldering quality of the electronic components in the soldering process.

Therefore, an object of the present invention is to provide a method and a method for detecting and supplementing a tin liquid which can control tin liquid replenishment by detecting a surface of a tin liquid.

Another object of the present invention is to provide a tin liquid detecting and replenishing device capable of controlling tin liquid replenishment by detecting the surface of a tin liquid.

It is still another object of the present invention to provide an apparatus for performing a tin liquid detection and replenishment method as the object of the present invention.

The tin liquid detecting and replenishing method according to the object of the present invention comprises: providing a first measuring rod having a lower bottom end and close to a tin liquid surface in a furnace chamber; providing a bottom end higher and a tin liquid surface in the furnace chamber a second measuring rod farther than the bottom end of the first measuring rod; the first measuring rod and the second measuring rod are respectively connected by a wire to a control device, wherein the first measuring rod and the second measuring rod respectively form a telecommunications The positive pole of the conducting loop is connected to the control device, and the tin liquid in the cavity forms the negative pole of the telecommunications guiding loop connected with the control device; the first measuring rod provides control of tin liquid replenishment and stop replenishment, and the second measuring rod provides tin The liquid is over-filled; the driving roller is driven by the driving member in accordance with the detection result, and the driving roller is rotatable, and the passive roller is arranged parallel to the driving roller, and the passive roller is subjected to an elastic component The action is such that the driven roller changes the driving force of the driving roller, and the elastic member is adjusted by the adjusting member to adjust the elastic driving force; thereby controlling the tin liquid replenishing operation in the cavity.

A tin liquid detecting and replenishing device according to another object of the present invention comprises: a detecting device provided with a first measuring rod having a lower end and being close to a tin liquid surface in a cavity; and a second measuring rod The bottom end is higher and the distance from the surface of the tin liquid in the cavity is farther than the bottom end of the first measuring rod; The rod and the second measuring rod are respectively connected by a wire to a control device, wherein the first measuring rod and the second measuring rod respectively form a positive electrode of the telecommunication guiding circuit and the control device is connected, and the tin liquid in the cavity is formed. The negative pole of the telecommunication guiding loop is connected with the control device; the first measuring rod provides control of tin liquid replenishment and stop replenishment, the second measuring rod provides control for excessive replenishment of tin liquid; and a compensating device comprising: a tin wire provided a tin wire mechanism, a roller wire mechanism of a roller feeding wire, and a wire mechanism for guiding the tin wire, according to the detection result of the detecting device, the tin liquid in the cavity is supplemented; the roller wire mechanism is driven by a driving member a rotatable driving roller, and a passive roller disposed parallel to the driving roller axial direction, the passive roller being acted upon by an elastic member, so that the passive roller changes the driving force of the driving roller. The elastic member is adjusted by an adjusting member to elastically drive.

A tin liquid detecting and replenishing device according to still another object of the present invention comprises: means for performing the tin liquid detecting and replenishing method.

The tin liquid detecting and replenishing method and device according to the embodiment of the present invention, by using the first measuring rod and the second measuring rod with different liquid level from the tin liquid, the first measuring rod provides the tin liquid filling and stopping the supplement control, The second measuring rod provides the fault control of the tin liquid being over-supplemented, and is matched with the compensation device by using the tin wire to be melted through the tin wire mechanism, the roller wire mechanism, and the wire mechanism to extend into the tin liquid in the cavity of the tin furnace. The tin liquid replenishment is not only simpler than the prior art in which the tin rod is manually placed in the tin furnace to replenish the tin liquid, and the tin liquid replenishment is carried out by automatically feeding the tin wire into the furnace chamber, and the operator does not need to constantly monitor The tin level change of the tin furnace allows the operator to expand the number of tubes for controlling the tube; on the other hand, the driving device of the roller line mechanism is controlled by the control device to drive the driving roller to match the nip roller of the passive roller to make the tin The accuracy of the tin liquid supply in the tin liquid which is conveyed into the furnace cavity of the tin furnace is increased, and the melting amount of the tin wire can be controlled, so that the quality of the electronic component is greatly improved.

A‧‧‧ Tin furnace

A1‧‧‧ pedestal

A2‧‧‧ furnace cavity

A21‧‧‧ tin liquid surface

A3‧‧‧heater

A4‧‧‧Exhaust device

A5‧‧‧Scratch device

A51‧‧‧Scraper

A52‧‧‧ Guide slot

A53‧‧‧Collection device

B‧‧‧Detection device

B1‧‧‧ drive parts

B2‧‧‧ Lifting parts

B3‧‧‧ Fixed seat

B4‧‧‧first measuring rod

B41‧‧‧ wire

B5‧‧‧Second measuring rod

B51‧‧‧Wire

C‧‧‧Compensation device

C1‧‧‧ tin wire mechanism

C11‧‧‧ tin wire

C12‧‧‧ tin wire coil

C13‧‧‧ tripod

C14‧‧‧ bracket

C2‧‧‧Rolling line mechanism

C21‧‧‧ fixed seat

C211‧‧‧ Stand

C22‧‧‧ Guide

C221‧‧‧Wire hole

C23‧‧‧ fixed plate

C24‧‧‧ drive parts

C241‧‧‧Active roller

C242‧‧‧ Passive roller

C25‧‧‧Drawer

C251‧‧‧ pivot

C252‧‧‧ rocker arm

C253‧‧‧ buckle arm

C254‧‧‧Flexible components

C255‧‧‧ external thread

C256‧‧‧Adjustment

C257‧‧‧ nuts

C26‧‧‧ guide

C261‧‧‧Second wire hole

C3‧‧‧Wire mechanism

C31‧‧‧ catheter

C32‧‧‧ buckle frame

1 is a perspective view showing the configuration of each mechanism in the embodiment of the present invention.

2 is a schematic perspective view of a detecting device and a tin furnace in an embodiment of the present invention.

3 is a schematic view of the first measuring rod and the second measuring rod above the tin liquid surface in the embodiment of the present invention.

4 is a schematic diagram of various mechanisms of a compensation device in an embodiment of the present invention.

Fig. 5 is a schematic view showing the roller mechanism of the compensating device in the embodiment of the present invention.

Referring to FIG. 1 and FIG. 2, the tin liquid detecting and replenishing method and device according to the embodiment of the present invention can be exemplified by the tin liquid detecting and replenishing device in the figure, comprising: a tin furnace A, which is substantially in the shape of a rectangle and is disposed in a pedestal. In A1, a furnace chamber A2 is arranged to hold the tin liquid, a heater A3 is arranged under the furnace chamber A2 to heat the tin liquid in the furnace chamber A2, and a suction device A4 is arranged above the tin furnace A to discharge the tinning process. The medium in which the flux is evaporated, the side of the long side of the rectangular shape of the tin furnace A has a scraping device A5, and a scraping member A51 performs a scraping operation on the surface oxide layer of the tin liquid in the cavity A2 to The oxide layer is scraped into the guiding groove A52 of the tin furnace A side, and is discharged into a collecting container A53; a detecting device B is disposed on the side of the tin furnace A on the pedestal A1, and includes a driving unit B1 for driving up and down The erecting lifting device B2 is disposed with a fixing base B3 laterally disposed thereon; please refer to the second and third figures at the same time, the fixing base B3 is provided with a first measuring rod B4 and a second measuring rod B5 which are parallel to each other, wherein The bottom end of the first measuring rod B4 is lower and close to the tin liquid surface A21 in the furnace chamber A2, and the bottom end of the second measuring rod B5 is higher and the furnace chamber A2 The distance A21 of the tin liquid surface is farther than the bottom end of the first measuring rod B4; the first measuring rod B4 and the second measuring rod B5 are respectively connected with a control device (not shown, such as a microcomputer) by wires B41 and B51, wherein A measuring rod B4 and a second measuring rod B5 respectively form a positive electrode of the telecommunication guiding circuit and the control device is connected, and the tin liquid in the cavity A2 forms a negative electrode of the telecommunication guiding circuit and is connected with the control device; A compensation device C, as shown in FIGS. 4 and 5, includes a tin wire mechanism C1, a roller wire mechanism C2, and a wire mechanism C3. The wire wire mechanism C1 includes a tin wire coil C12 wound with a tin wire C11. It is supported by a bracket C14 which is supported by a plurality of legs C13; the roller mechanism C2 includes a fixing base C21 which is elevated by a vertical frame C211 provided on the base A1, and the fixing base C21 includes a guide plate C22 parallel to the axial winding of the tin wire coil C12 and having a first wire hole C221 thereon, and a fixing plate C23 perpendicular to the axial direction of the wire winding C12, the fixing plate C23 is provided with a receiving plate The driving roller C241 is driven by the driving member C24, and the driving roller C241 is disposed in parallel with the driving roller C241. The passive roller C242 is disposed on the fixing plate C23 with a pivot 251. On the rocker arm C252 of the L-shaped frame C25, the frame C25 is provided with a rocker arm C252 at the end of another buckle arm C253 which is at an angle of about ninety degrees and is interlocked in angular displacement, and is received by an elastic member C254. The buckle C, the elastic member C254 is coupled and fastened by an adjusting member C256 fixed to the guide plate C22 and having an external thread C255. The nut C257 on the adjusting member C256 changes the length of the adjusting member C256 protruding from the guiding plate C22, so that the elastic driving force of the elastic member C254 of the pulling arm C253 can be changed, and the interlocking arm C253 is integrally formed by the interlocking member C253. The other end of the pivot 251, the rocker C252, the passive roller C242 and the synchronous linkage change the driving force of the driving roller C241; the fixing plate C23 is simultaneously provided with a guide C26, and a second wire hole C261 is disposed thereon. The wire mechanism C3 includes a duct C31 which is elevated by a buckle C32 located on the pedestal A1 and positioned on the side of the tin furnace A. The inside of the duct C31 is a hollow duct with one end facing the guide C26. a second wire hole C261 having the other end facing the tin liquid surface in the cavity A2 of the solder pot A, wherein the end toward the second wire hole C261 is higher, and the end toward the tin liquid surface in the cavity A2 is lower; The tin wire C11 wound by the tin wire coil C12 of the tin wire mechanism C1 passes through the first wire hole C221 on the guide plate C22 of the roller wire mechanism C2, and is nip under the nip roller of the driven roller C242 and the driving roller C241. After passing through the second wire hole C261 on the guide C26, the pipe C31 is passed through the upper frame C32 to guide the wire C11 into the tin liquid in the cavity A2 of the tin furnace A.

The tin liquid detecting and replenishing method of the embodiment of the invention comprises: 1. When the tin liquid in the furnace chamber A2 is consumed to the tin liquid surface A21 is lower than the bottom end of the detecting device B and is close to the tin liquid surface A21 in the furnace chamber A2 When the first measuring rod B4 is connected, since the positive pole of the telecommunication guiding circuit cannot be connected with the negative pole of the telecommunication guiding circuit formed by the tin liquid in the cavity A2, the connection of the wire B41 and the control device forms a signal for disconnecting, the signal A control device is formed to give an instruction to instruct the compensation device C to perform tin liquid replenishment, so that the driving member C24 of the roller line mechanism C2 drives the driving roller C241 to roll, and cooperates with the nip roller of the passive roller C242 to make the first wire The tin wire C11 introduced by the hole C221 is fed through the second wire hole C261 by the roller and then passed through the upper tube C31 of the fastener frame C32 to guide the tin wire C11 to be melted into the tin liquid in the furnace chamber A2 of the solder furnace A. The tin liquid is replenished; 2. When the tin liquid in the furnace chamber A2 is replenished to the tin liquid surface A21 and touches the bottom end of the first measuring rod B4 in the detecting device B, the positive electrode of the telecommunication guiding circuit and the tin liquid in the furnace chamber A2 are formed. The negative connection of the telecommunications pilot loop, so the conductor B41 and the control device The connection forms a pilot communication number, and the signal will form a control device to issue an instruction indicating that the compensation device C stops the tin liquid replenishment, so that the driving member C24 of the roller line mechanism C2 stops driving the driving roller C241 to rotate, and cooperates with the passive roller C242. The nip roller stops, so that the tin wire C11 stops being transported into the tin liquid in the furnace cavity A2 of the tin furnace A; 3. when the tin liquid in the cavity A2 is excessively replenished to the tin liquid surface A21 touches the detecting device B, the position is higher And the bottom end of the second measuring rod B5 which is far away from the tin liquid surface A21 in the cavity A2, because of the telecommunication guide leading to the formation of the tin liquid in the positive electrode of the second measuring rod B5 and the furnace chamber A2 The negative connection of the circuit is connected, so the connection of the wire B51 and the control device forms a communication number, which will form a fault handling procedure for the control device to perform the shutdown, so that the operator can detect whether the tin liquid replenishing mechanism of the compensation device C is faulty.

The tin liquid detecting and replenishing method and device of the embodiment of the present invention provide the tin liquid supplement and the stop supplement by the first measuring rod B4 by using the first measuring rod B4 and the second measuring rod B5 at different heights from the tin liquid level. Control, the second measuring rod B5 provides fault control in which the tin liquid is excessively replenished, and cooperates with the compensation device C to adopt a transfer of the tin wire through the tin wire mechanism C1, the roller wire mechanism C2, and the wire mechanism C3 to extend into the furnace of the tin furnace A. The tin liquid in the cavity A2 is heated and melted to carry out the tin liquid replenishment, which is not only simple to manually place the tin bar in the tin furnace to supplement the tin liquid, and the tin liquid replenishment is automatically conveyed into the cavity A2. The tin wire C11 method is provided, and the operator does not need to constantly monitor the tin level change of the tin furnace, so that the operator can enlarge the number of the control tube; on the other hand, the control device controls the driving member C24 of the roller line mechanism C2. The driving roller C241 is driven to cooperate with the nip roller of the passive roller C242, so that the tin liquid C11 is fed into the tin bath of the tin furnace A, and the tin liquid amount in the tin liquid is increased, and the melting amount of the tin wire C11 can be controlled. In order to greatly improve the quality of electronic components.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

C‧‧‧Compensation device

C1‧‧‧ tin wire mechanism

C11‧‧‧ tin wire

C12‧‧‧ tin wire coil

C13‧‧‧ tripod

C14‧‧‧ bracket

C2‧‧‧Rolling line mechanism

C3‧‧‧Wire mechanism

C31‧‧‧ catheter

C32‧‧‧ buckle frame

Claims (11)

A tin liquid detecting and replenishing method comprises: providing a first measuring rod having a lower bottom end and close to a tin liquid surface in a furnace chamber; providing a bottom end higher than a first surface of the tin liquid surface in the furnace chamber a second measuring rod far from the bottom end of the measuring rod; the first measuring rod and the second measuring rod are respectively connected by a wire to a control device, wherein the first measuring rod and the second measuring rod respectively form a telecommunication guiding circuit The positive electrode is connected to the control device, and the tin liquid in the cavity forms a negative electrode of the telecommunication guiding circuit and is connected with the control device; the first measuring rod provides control of tin liquid replenishment and stop replenishment, and the second measuring rod provides excessive replenishment of tin liquid. Control; according to the detection result, a driving roller which is driven by a driving member in a compensating device, and a passive roller which is arranged in parallel with the driving roller, and the passive roller is acted upon by an elastic member The passive roller changes the driving force of the driving roller, and the elastic member is adjusted by the adjusting member to adjust the elastic driving force; thereby controlling the tin liquid replenishing operation in the cavity. The tin liquid detecting and replenishing method according to the first aspect of the invention, wherein the tin liquid replenishing system is performed by automatically feeding a tin wire into the furnace cavity. A tin liquid detecting and replenishing device comprises: a detecting device, which is provided with a first measuring rod, the bottom end of which is lower and close to the surface of the tin liquid in a cavity; and a second measuring rod whose bottom end is higher and The distance between the surface of the tin liquid in the cavity is farther than the bottom end of the first measuring rod; the first measuring rod and the second measuring rod are respectively connected by wires to a control device, wherein the first measuring rod and the second measuring rod are respectively formed The positive pole of a telecom connecting circuit is connected with the control device, and the tin liquid in the cavity forms a negative electrode of the telecommunication guiding circuit and is connected with the control device; the first measuring rod provides control of tin liquid replenishment and stop replenishment, and the second measuring rod Providing control that the tin liquid is excessively replenished; a compensating device comprising: a tin wire mechanism for providing a tin wire, a roller wire mechanism for a roller wire feeding wire, and a wire guiding mechanism for guiding the tin wire, according to the detection result of the detecting device, Tin liquid in the cavity a replenishing operation; the roller line mechanism is provided with a driving roller driven by the driving member and rotating, and a passive roller arranged in parallel with the driving roller, the passive roller being acted by an elastic member to make the passive roller The roller changes the driving force of the driving roller, and the elastic member is adjusted by the adjusting member to adjust the elastic driving force. The tin liquid detecting and replenishing device according to claim 3, wherein the detecting device is disposed on a side of a tin furnace, and the first measuring rod and the second measuring rod are disposed in parallel with each other on the fixing base. The tin liquid detecting and replenishing device according to claim 3, wherein the tin wire mechanism comprises a tin wire wound around a tin wire, which is supported by a bracket supported by a plurality of tripods. The tin liquid detecting and replenishing device according to claim 3, wherein the roller wire mechanism comprises a fixing base which is elevated by a vertical frame provided on the pedestal, and the driving roller is fixedly fixed, and The passive roller. The tin liquid detecting and replenishing device according to Item 3 of the patent application, wherein the first roller hole and the second wire hole are respectively provided on the front and rear sides of the parallel driving roller and the passive roller. Wear the classics. The tin liquid detecting and replenishing device according to claim 3, wherein the passive roller is disposed on a rocker arm of a carriage, and the other buckle arm of the carriage that is interlocked with the rocker arm receives the elastic component Acting. The tin liquid detecting and replenishing device according to claim 3, wherein the first measuring rod and the second measuring rod are disposed on a fixed seat of the vertical lifting member that can be driven up and down by a driving member. . The tin liquid detecting and replenishing device according to claim 3, wherein the wire mechanism comprises a conduit which is elevated by a buckle frame and positioned on a side of the tin furnace, and the inside of the pipe is a hollow pipe. A tin liquid detecting and replenishing device comprising: a device for performing a tin liquid detecting and replenishing method according to any one of claims 1 to 2.