CN213614671U

CN213614671U - Automatic tin pen feeding device

Info

Publication number: CN213614671U
Application number: CN202022405865.XU
Authority: CN
Inventors: 谢林波; 李萍; 海翔
Original assignee: G & A Technologies Co ltd
Current assignee: G & A Technologies Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-07-06
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses an automatic tin pen feeding device, including the pen-holder, the tin wire passageway has been seted up in the pen-holder, tin wire passageway both ends are the wire outlet hole and the wire inlet hole of pen-holder front and rear end respectively, the pen-holder rear end is through the disk rack installation tin wire dish, be equipped with preceding, back two sets of relative gyro wheels in the pen-holder of tin wire passageway both sides, connect the hold-in range between the preceding, back gyro wheel of tin wire passageway one side, a gyro wheel is connected with the motor and becomes the action wheel, the preceding, back gyro wheel of tin wire passageway opposite side are unpowered wheel, the motor passes through the button on the circuit connection pen-holder, the tin wire that unreels on the tin wire dish gets into the tin wire passageway and transports to the wire outlet hole by the centre gripping of preceding, back; the motor is connected with the microcontroller through the isolation driving circuit, and the sensor for detecting the rotation amount on the motor is connected with the microcontroller through the signal conditioning circuit. The utility model discloses maneuverability is good, has the multiple tin mode of feeding, can realize the quantitative operation of technology of soldering tin, and the operator of different skill levels all is suitable for.

Description

Automatic tin pen feeding device

Technical Field

The utility model relates to an electronic welding technique specifically is an automatic feed tin pen device.

Background

The soldering technology is widely applied in the field of electronic assembly, such as reflow soldering of surface-mounted devices, manual soldering or wave soldering of direct-insertion devices and the like.

The direct-insert device is required to meet the tin penetration requirement of relevant specifications during welding, the insulation and voltage resistance performance of an electronic product is influenced if the tin penetration amount is too large under a limited clearance, the tin penetration amount is not directly met if the tin penetration amount is too small, the condition is particularly easy to occur during manual welding, the qualified rate of electronic product assembly is low, the requirement on the operation level of workers is high, and the reason is that the process quantification cannot be carried out on soldering tin.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of not enough to prior art, the utility model provides a can carry out the automatic tin pen device of feeding of soldering tin technology ration.

The automatic tin pen feeding device capable of solving the technical problems comprises a tin pen feeding mechanism, and is characterized in that the tin pen feeding mechanism comprises a pen holder, a tin wire channel is arranged in the pen holder, two ends of the tin wire channel are respectively communicated with the front end and the rear end of the pen holder to form a wire outlet hole and a wire inlet hole, a tin wire disc is arranged at the rear end of the pen holder through a disc frame, a front group of idler wheels and a rear group of idler wheels which roll oppositely are arranged in the pen holder at two sides of the tin wire channel, the front idler wheel and the rear idler wheel at one side of the tin wire channel are connected through a synchronous belt, one of the rollers is a driving wheel connected with a motor (arranged in the pen holder), the front roller and the rear roller on the other side of the tin wire channel are both unpowered wheels, the motor is connected with a button arranged on the pen holder through an internal circuit, and the tin wire unreeled on the tin wire disc enters the tin wire channel from the wire inlet hole and is clamped by the front and rear groups of rollers to be conveyed to the wire outlet hole; the motor is connected with the microcontroller through an external isolation driving circuit, the sensor for detecting the rotation amount on the motor is connected with the microcontroller through an external signal conditioning circuit, and the function keys and the display screen on the microcontroller provide a human-computer interaction interface for automatic tin feeding control.

In the structure, the microcontroller is an electric control core component of the tin feeding pen mechanism, the whole automatic tin feeding operation program or related algorithm is burnt in the microcontroller, and the tin discharging mode and the tin discharging amount are controlled by the microcontroller; the isolation driving circuit has the main functions of converting a control signal sent by the microcontroller into an energy signal capable of driving the motor to run, and simultaneously can isolate the microcontroller from a motor circuit to prevent the microcontroller from being burnt due to short circuit of the motor or induced electromotive force of the motor; the display screen mainly displays the current set conditions, such as tin feeding length and tin feeding speed, automatic tin feeding, manual button tin feeding, constant speed unlimited tin feeding and the like, and the function keys on the microcontroller are used for setting or selecting parameters or working states of automatic tin feeding; the signal conditioning circuit is mainly used for processing the signals output by the sensor and converting the signals output by the sensor into signals which can be processed by the microprocessor; the motor is used as an execution component for tin discharging and converts the control quantity of the microcontroller into displacement so as to control the tin discharging quantity; the sensor mainly converts the actual tin output into an electric signal and finally feeds the electric signal back to the microprocessor, so that the tin output of the tin feeding pen mechanism forms closed-loop control, and the tin output is more accurate.

The utility model has the advantages that:

1. the utility model discloses automatic tin pen feeding device is small and exquisite in size, and maneuverability is good.

2. The utility model discloses in the structure, the pen-holder nib at silk hole place can make for slender and be applicable to the welding of higher density device.

3. The utility model discloses can realize the technology quantification operation of soldering tin.

4. The utility model discloses simple structure easily produces the manufacturing.

5. The utility model discloses there is manual button to go out tin, at the uniform velocity automatic go out tin, the circulation is interrupted modes such as tin and is selected, and the use is nimble.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of the embodiment of fig. 1.

Fig. 3 is a functional block diagram of an electric control portion in the embodiment of fig. 1.

And (3) identifying the figure number: 1. a pen holder; 2. a tin wire channel; 3. a filament outlet hole; 4. a wire inlet hole; 5. a tray frame; 6. a tin wire reel; 7. a button; 8. a microcontroller; 8-1, a display screen; 8-2, function keys; 9. a synchronous belt; 10. a driving wheel; 11. a power-free wheel; 12. a driven wheel.

Detailed Description

The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.

The utility model discloses automatic tin pen feeding device, including mechanical part and automatically controlled part, mechanical part is including feeding tin pen mechanism, it includes pen-holder 1 and the plate rail 5 of installing tin silk dish 6 to feed tin pen mechanism, pen-holder 1 includes the body of the pen of handheld portion, the coaxial nib (slender) of body front end and the penholder of body rear end namely plate rail 5, the coaxial tin silk passageway 2 of having seted up in the body of the pen, tin silk passageway 2 leads out the nib forward and becomes wire outlet 3, and tin silk passageway 2 leads out the plate rail 5 backward and becomes wire inlet 4; a front roller set and a rear roller set are arranged in the pen body along the tin wire channel 2, rollers which are opposite to each other in the upper and lower directions in the front roller set are symmetrically arranged on the upper and lower sides of the tin wire channel 2, and rollers which are opposite to each other in the upper and lower directions in the rear roller set are symmetrically arranged on the upper and lower sides of the tin wire channel 2; the front roller and the rear roller on the upper side are connected through a synchronous belt 9, the rear roller is connected with a motor arranged in the pen body to form a driving wheel 10, the front roller is driven through the synchronous belt 9 to form a driven wheel 12, and the front roller and the rear roller on the lower side are unpowered wheels 11; the distance between the upper roller and the lower roller of the front roller group and the rear roller group is positioned in the center of the tin wire channel 2 and is matched with the wire diameter of the tin wire; a button 7 is arranged at the front part of the pen body of the pen holder 1, the button 7 is connected with a motor through a circuit arranged in the pen body, and a sensor for detecting the rotation amount of a rotating shaft (namely a driving wheel 10) is arranged on the motor; the tin wire unreeled on the tin wire disc 6 enters the tin wire channel 2 from the wire inlet hole 4, the tin wire is conveyed forwards by clamping the upper and lower rollers of the rear roller set and the front roller set firstly and secondly, and finally the tin wire is led out of the pen point from the wire outlet hole 3, as shown in fig. 1 and 2.

In the structure, the driving wheel 10, the driven wheel 12 and the front and rear unpowered wheels 11 are all rollers with the same diameter; the rotation angle (W) and the effective rotation radius (R) of the capstan 10 determine the tin yield of the tin wire, i.e., the tin yield length L, where L is W × R.

The electric control part comprises a microcontroller 8, a plurality of function keys 8-2 and a display screen 8-1 used as a human-computer interaction interface are arranged on the microcontroller 8, the motor is connected with the microcontroller 8 through an external isolation driving circuit, the sensor is connected with the microcontroller 8 through an external signal conditioning circuit, and an external power supply and a microcontroller minimum system circuit provide power for the microcontroller 8, as shown in fig. 1 and 3.

The microcontroller 8 is a core component of the electric control part, the microcontroller 8 is burned with an operation program or a related algorithm of the tin feeding pen mechanism, and the tin discharging mode and the tin discharging amount are controlled by the operation program or the related algorithm.

The power supply and the microcontroller minimum system circuit provide power for the electric control part and provide a minimum circuit system which can ensure the normal work of the microcontroller 8.

The isolation driving circuit has the main functions of converting a control signal sent by the microcontroller 8 into an energy signal capable of driving the motor to run, and simultaneously can isolate the microcontroller 8 from the circuit of the motor to prevent the microcontroller 8 from being burnt down due to short circuit of the motor or induced electromotive force of the motor.

The display screen 8-1 and the function keys 8-2 provide a human-computer interaction interface for tin output control, the display screen 8-1 mainly displays current set conditions, such as tin feeding length, tin feeding speed, automatic tin feeding or manual button tin feeding, constant-speed and unlimited-length tin feeding and the like, and the function keys 8-2 are used for setting or selecting parameters or working states of automatic tin feeding.

The signal conditioning circuit is mainly used for processing the signals output by the sensor and converting the signals output by the sensor into signals which can be processed by the microprocessor 8.

The sensor mainly converts the actual tin output into an electric signal and feeds the electric signal back to the microprocessor 8, so that the tin output forms closed-loop control, the tin output is more accurate, and the microprocessor 8 controls the rotation angle of the motor (namely, the rotation amount of the driving wheel 10) to meet the control requirement for controlling the tin output.

Under the control of the microprocessor 8, the tin feeding pen mechanism has three tin discharging modes:

firstly, the continuous and uniform automatic tin discharging is realized. The tin discharging speed is set through the display screen 8-1 and the function keys 8-2, then the button 7 is pressed to start the motor, the tin feeding pen mechanism can discharge tin at a constant speed according to the set tin discharging speed, if tin discharging needs to be stopped, the button 7 is pressed again, and the tin discharging mode is suitable for large-solder-quantity welding or large-scale regular welding.

And secondly, realizing automatic tin discharging at intervals in a circulating manner. The tin discharging speed, the tin discharging length and the tin discharging interval time are set through the display screen 8-1 and the function keys 8-2, then the button 7 is pressed to start the motor, the tin feeding pen mechanism can circularly discharge tin according to the set tin discharging speed, the tin discharging length and the interval time, if the tin discharging is required to be stopped, the button 7 is pressed again, and the tin discharging mode is suitable for the conditions that skilled manual operators have consistent welding spot conditions.

And thirdly, realizing tin discharging by a manual button. The tin discharging speed and the tin discharging length are set on the display screen 8-1 through the function key 8-2, then the button 7 is pressed, the tin feeding pen mechanism can discharge tin according to the set tin discharging speed and the set tin discharging length, if tin is required to be discharged again, the button 7 is pressed again, and the tin discharging mode is suitable for the situation that beginner manual operators or welding spot conditions are inconsistent.

To sum up, the utility model discloses can carry out multiple tin mode of feeding (if the circulation is automatic to be fed tin, at the uniform velocity automatic tin and manual button feed tin), small in size, welding performance is good (the nib is fine thin, the welding of applicable higher density device), can realize the quantitative operation of technology of soldering tin, can select different tin modes of feeding according to specific environment and demand degree, uses in a flexible way changeable.

Claims

1. Automatic feed tin pen device, including feeding tin pen mechanism, its characterized in that: the tin wire feeding mechanism comprises a pen holder (1), a tin wire channel (2) is arranged in the pen holder (1), two ends of the tin wire channel (2) are respectively communicated with the front end and the rear end of the pen holder (1) to form a wire outlet hole (3) and a wire inlet hole (4), a tin wire disc (6) is installed at the rear end of the pen holder (1) through a disc frame (5), front and rear groups of opposite rollers are arranged in the pen holder (1) on two sides of the tin wire channel (2), the front roller and the rear roller on one side of the tin wire channel (2) are connected through a synchronous belt (9), one roller is connected with a motor to form a driving wheel (10), the front roller and the rear roller on the other side of the tin wire channel (2) are unpowered wheels (11), the motor is connected with a button (7) arranged on the pen holder (1) through an internal circuit, and tin wires unreeled on the tin wire disc (6) enter the tin wire channel (2) from the wire inlet hole (4) and are fed into, The rear two groups of rollers are clamped and conveyed to the wire outlet hole (3); the motor is connected with the microcontroller (8) through an external isolation driving circuit, a sensor for detecting rotation amount on the motor is connected with the microcontroller (8) through an external signal conditioning circuit, and a function key (8-2) and a display screen (8-1) on the microcontroller (8) provide a human-computer interaction interface for automatic tin feeding control.