Broken wire detection device of lead-free tin wire drawing machine

Abstract

The utility model discloses a broken wire detection device of a lead-free tin wire drawing machine. The broken wire detection device comprises a machine base, a pay-off winding barrel, a first wire drawing barrel, a second wire drawing barrel, a broken wire detection assembly, a tension guide mechanism and a take-up winding barrel, the first wire drawing cylinder and the second wire drawing cylinder are used for winding lead-free tin wires led out of the pay-off winding cylinder, the wire breakage detection assembly is arranged on the side wall, close to the tension guide mechanism, of the lubricating water tank, and the wire breakage detection assembly comprises a fixing base, a traction motor, a first wire feeding wheel, a second wire feeding wheel and a photoelectric encoder. The photoelectric encoder of the wire breakage detection assembly can detect the conveying displacement of the lead-free tin wire, and when the lead-free tin wire is broken, the second wire feeding wheel does not rotate along with the lead-free tin wire any more, so that the photoelectric encoder does not receive continuous displacement changes any more, wire breakage detection of the lead-free tin wire is achieved, a wire drawing machine is automatically controlled to stop, and the production efficiency is improved. Equipment idling or die running-out caused by wire breakage is prevented, mechanical abrasion is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of tin wire drawing machines, in particular to a wire break detection device for a lead-free tin wire drawing machine. Background Art

[0002] Aluminum-free tin wire is a commonly used welding material. It is a tin alloy wire with a certain length and diameter. It can be used with an electric soldering iron in the soldering of electronic components.

[0003] In the prior art, during the wire drawing production process of aluminum-free tin wire, it is necessary to draw the tin wire thin through more than ten to twenty dies in the wire drawing machine. During the wire drawing process, the tin wire may break due to slag, entanglement, wire jamming or the tin wire itself. After the tin wire breaks, if the wire drawing machine is not stopped in time and the wire drawing continues to run, the die will run empty, resulting in increased downtime, affecting production efficiency, increasing the labor intensity of workers, and wasting more energy.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a wire breakage detection device for a lead-free tin wire drawing machine which can automatically detect whether the tin wire is broken and reduce the downtime.

[0006] To achieve this purpose, the utility model adopts the following technical scheme: a wire break detection device for a lead-free tin wire drawing machine, comprising a machine base, a wire pay-off reel, a first wire drawing reel, a second wire drawing reel, a wire break detection assembly, a tension guide mechanism and a wire take-up reel;

[0007] A lubricating water tank is provided on the machine base, the first wire drawing drum and the second wire drawing drum are respectively provided on both sides of the lubricating water tank, the wire pay-off reel is provided at one end of the lubricating water tank, and the first wire drawing drum and the second wire drawing drum are used to wind the lead-free tin wire led out from the wire pay-off reel;

[0008] The wire take-up reel is arranged at one end of the machine base away from the wire pay-off reel, the tension guide mechanism is arranged between the lubricating water tank and the wire take-up reel, the tension guide mechanism is used to adjust the traction tension of the lead-free tin wire, the wire breakage detection component is arranged on the side wall of the lubricating water tank close to the tension guide mechanism, and the wire breakage detection component is used to detect whether the lead-free tin wire in traction and transportation is broken;

[0009] The wire break detection assembly includes a fixed seat, a traction motor, a first wire feeding wheel, a second wire feeding wheel and a photoelectric encoder. Wire holes are provided on both sides of the fixed seat. The first wire feeding wheel and the second wire feeding wheel are respectively arranged between the two wire holes, and the first wire feeding wheel is arranged above the second wire feeding wheel. The output shaft of the traction motor is connected to the first wire feeding wheel to drive the first wire feeding wheel to rotate. The photoelectric encoder is connected to the second wire feeding wheel for detecting the traction displacement of the lead-free tin wire.

[0010] By adopting the above technical solution, in the wire breakage detection device of the lead-free tin wire drawing machine, a gap is provided between the first wire feeding wheel and the second wire feeding wheel for the lead-free tin wire to be pulled through.

[0011] By adopting the above-mentioned technical solutions, in the wire breakage detection device of the lead-free tin wire drawing machine, the tension guide mechanism includes a mounting plate, a first guide wheel, a guide wheel arm and a swing arm motor;

[0012] The mounting plate is arranged on the machine base, and a rotating shaft is provided on the mounting plate. One end of the guide wheel arm is connected to the rotating shaft, and the other end of the guide wheel arm is connected to the first guide wheel. The guide wheel arm is used to adjust the swing position of the first guide wheel as the rotating shaft rotates. The output shaft of the swing arm motor is connected to the rotating shaft through a gear transmission member to drive the rotating shaft to rotate.

[0013] By adopting the above-mentioned technical solutions, the wire breakage detection device of the lead-free tin wire drawing machine further includes a second guide wheel and a third guide wheel, and the second guide wheel and the third guide wheel are arranged on the mounting plates on both sides of the rotating shaft.

[0014] By adopting the above-mentioned technical solutions, the wire breakage detection device of the lead-free tin wire drawing machine also includes a wire drawing die, which is arranged between the first wire drawing drum and the second wire drawing drum, and the wire drawing die is used to draw the lead-free tin wire.

[0015] By adopting the above-mentioned technical solutions, the wire breakage detection device of the lead-free tin wire drawing machine further includes a wire take-up motor, and the output shaft of the wire take-up motor is connected to the shaft end of the wire take-up reel.

[0016] By adopting the above-mentioned technical solutions, in the wire breakage detection device of the lead-free tin wire drawing machine, a rubber ring is provided in the wire hole.

[0017] By adopting the above-mentioned technical solutions, the wire breakage detection device of the lead-free tin wire drawing machine further includes a controller, and the photoelectric encoder is electrically connected to the wire taking-up motor through the controller.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The photoelectric encoder of the wire breakage detection assembly of the utility model can detect the conveying displacement of the lead-free tin wire. When the lead-free tin wire is broken, the second wire feeding wheel no longer rotates with the lead-free tin wire, so that the photoelectric encoder no longer receives continuous displacement changes, thereby realizing the wire breakage detection of the lead-free tin wire and automatically controlling the wire drawing machine to stop, preventing the equipment from idling or running out of the mold due to wire breakage, reducing mechanical wear and extending the service life of the equipment; the tension guide mechanism can adjust the tension of the lead-free tin wire during the wire drawing and wire collection process, preventing wire breakage due to excessive tension, and improving the stability of the wire drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the disconnection detection component of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the tension guide mechanism of the utility model;

[0025] Figure 4 It is a schematic diagram of the overall back structure of the utility model. DETAILED DESCRIPTION

[0026] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0028] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0029] like Figures 1 to 4 As shown, the embodiment of the utility model provides a wire breakage detection device for a lead-free tin wire drawing machine, comprising a machine base 1, a wire pay-off reel 2, a first wire drawing reel 31, a second wire drawing reel 32, a wire breakage detection assembly 4, a tension guide mechanism 5 and a wire take-up reel 6;

[0030] A lubricating water tank 10 is provided on the machine base 1, and the first wire drawing drum 31 and the second wire drawing drum 32 are respectively provided on both sides of the lubricating water tank 10, and the wire pay-off reel 2 is provided at one end of the lubricating water tank 10, and the first wire drawing drum 31 and the second wire drawing drum 32 are used for winding the lead-free tin wire led out from the wire pay-off reel 2; the first wire drawing drum 31 and the second wire drawing drum 32 can perform multi-stage traction and transportation on the lead-free tin wire, so as to pull out the lead-free tin wire led out from the wire pay-off reel 2 through rotational motion, and gradually thin it to ensure that the product diameter of the lead-free tin wire meets the requirements; the lubricating water tank 10 can reduce the friction of the lead-free tin wire during the wire drawing process, prevent the surface of the lead-free tin wire from being damaged or broken, thereby improving production efficiency and reducing downtime.

[0031] The wire take-up reel 6 is arranged at one end of the machine base 1 away from the wire pay-off reel 2, the tension guide mechanism 5 is arranged between the lubricating water tank 10 and the wire take-up reel 6, the tension guide mechanism 5 is used to adjust the traction tension of the lead-free tin wire, the wire break detection component 4 is arranged on the side wall of the lubricating water tank 10 close to the tension guide mechanism 5, the wire break detection component 4 is used to detect whether the lead-free tin wire in traction and transportation is broken, once the lead-free tin wire is detected to be broken, the system can quickly send a signal to control the wire drawing machine to automatically stop, to prevent the equipment from idling or running out of the mold due to wire breakage, to reduce mechanical wear, and to extend the service life of the equipment; the tension guide mechanism 5 can adjust the tension of the lead-free tin wire during the wire drawing and take-up process, to prevent wire breakage due to excessive tension, and to improve the stability of the wire drawing process.

[0032] like Figure 1 and Figure 2 As shown, the wire break detection component 4 includes a fixed seat 41, a traction motor 42, a first wire feeding wheel 43, a second wire feeding wheel 44 and a photoelectric encoder 45. Wire holes 410 are provided on both sides of the fixed seat 41. The first wire feeding wheel 43 and the second wire feeding wheel 44 are respectively arranged between the two wire holes 410, and the first wire feeding wheel 43 is arranged above the second wire feeding wheel 44. The output shaft of the traction motor 42 is connected to the first wire feeding wheel 43 to drive the first wire feeding wheel 43 to rotate. The photoelectric encoder 45 is connected to the second wire feeding wheel 44 to detect the traction displacement of the lead-free tin wire. The first wire feeding wheel 43 and the second wire feeding wheel 44 can be used to pull and convey the lead-free tin wire, so that the lead-free tin wire can be stably conveyed. The wire hole 410 can prevent the lead-free tin wire from shifting during the conveying process. The photoelectric encoder 45 can detect the conveying displacement of the lead-free tin wire. When the lead-free tin wire breaks, the second wire feeding wheel 44 no longer rotates with the lead-free tin wire, so that the photoelectric encoder 45 no longer receives continuous displacement changes, thereby realizing the break detection of the lead-free tin wire.

[0033] like Figure 2 As shown, further, a gap is provided between the first wire feeding wheel 43 and the second wire feeding wheel 44 for the lead-free tin wire to be pulled through. The setting of the gap enables the photoelectric encoder 45 connected to the second wire feeding wheel 44 to identify the displacement change of the lead-free tin wire when the lead-free tin wire breaks, so as to react quickly and start the shutdown protection measures.

[0034] like Figure 1 and Figure 3As shown, further, the tension guide mechanism 5 includes a mounting plate 51, a first guide wheel 52, a guide wheel arm 53 and a swing arm motor 54. The mounting plate 51 is arranged on the machine base 1. A rotating shaft 55 is arranged on the mounting plate 51. One end of the guide wheel arm 53 is connected to the rotating shaft 55, and the other end of the guide wheel arm 53 is connected to the first guide wheel 52. The guide wheel arm 53 is used to adjust the swing position of the first guide wheel 52 as the rotating shaft 55 rotates. The output shaft of the swing arm motor 54 is connected to the rotating shaft 55 through a gear transmission member 541 to drive the rotating shaft 55 to rotate. When it is necessary to adjust the traction tension of the lead-free tin wire, the swing arm motor 54 can drive the guide wheel arm 53 to swing through the rotating shaft 55 to adjust the position of the first guide wheel 52, and the change in the position of the first guide wheel 52 will affect the conveying path of the lead-free tin wire, thereby achieving the purpose of adjusting the tension.

[0035] like Figure 1 As shown, further, a second guide wheel 56 and a third guide wheel 57 are included, and the second guide wheel 56 and the third guide wheel 57 are arranged on the mounting plate 51 on both sides of the rotating shaft 55. The second guide wheel 56 and the third guide wheel 57 can provide a guiding effect for the lead-free tin wire, prevent the lead-free tin wire from deflecting or swinging during the transmission process, and ensure that the lead-free tin wire is always on the correct travel path.

[0036] like Figure 1 As shown, further, a wire drawing die 7 is included, and the wire drawing die 7 is arranged between the first wire drawing barrel 31 and the second wire drawing barrel 32, and the wire drawing die 7 is used to draw the lead-free tin wire. The wire drawing die 7 has a plurality of wire drawing holes of different diameters to gradually reduce the diameter of the lead-free tin wire. It should be noted that since the wire drawing die 7 is a publicly available prior art, this embodiment will not elaborate on the structure and working principle of the wire drawing die 7.

[0037] like Figure 1 and Figure 4 As shown, further, a wire take-up motor 8 is included, and the output shaft of the wire take-up motor 8 is connected to the shaft end of the wire take-up reel 6. The wire take-up motor 8 can drive the wire take-up reel 6 to rotate, so that the lead-free tin wire that has been finished drawing is neatly wound on the wire take-up reel 6 to form a coil.

[0038] like Figure 2 As shown, further, a rubber ring sleeve 411 is provided in the wire hole 410 , and the material of the rubber ring sleeve 411 is relatively soft, which can prevent the lead-free solder wire from being scratched by hard materials when passing through the wire hole 410 .

[0039] Furthermore, a controller (not shown) is included, through which the photoelectric encoder 45 is electrically connected to the wire take-up motor 8. When the photoelectric encoder 45 detects that the lead-free tin wire is broken, the controller can be used to control the wire take-up motor 8 to stop running to avoid energy loss caused by idling of the equipment.

[0040] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A wire break detection device for a lead-free solder wire drawing machine, characterized in that: It includes a machine base, a wire-paying reel, a first wire-pulling reel, a second wire-pulling reel, a wire-breakage detection assembly, a tension guide mechanism and a wire-taking reel; A lubricating water tank is provided on the machine base, the first wire drawing drum and the second wire drawing drum are respectively provided on both sides of the lubricating water tank, the wire pay-off reel is provided at one end of the lubricating water tank, and the first wire drawing drum and the second wire drawing drum are used to wind the lead-free tin wire led out from the wire pay-off reel; The wire take-up reel is arranged at one end of the machine base away from the wire pay-off reel, the tension guide mechanism is arranged between the lubricating water tank and the wire take-up reel, the tension guide mechanism is used to adjust the traction tension of the lead-free tin wire, the wire breakage detection component is arranged on the side wall of the lubricating water tank close to the tension guide mechanism, and the wire breakage detection component is used to detect whether the lead-free tin wire in traction and transportation is broken; The wire break detection assembly includes a fixed seat, a traction motor, a first wire feeding wheel, a second wire feeding wheel and a photoelectric encoder. Wire holes are provided on both sides of the fixed seat. The first wire feeding wheel and the second wire feeding wheel are respectively arranged between the two wire holes, and the first wire feeding wheel is arranged above the second wire feeding wheel. The output shaft of the traction motor is connected to the first wire feeding wheel to drive the first wire feeding wheel to rotate. The photoelectric encoder is connected to the second wire feeding wheel for detecting the traction displacement of the lead-free tin wire.

2. The wire breakage detection device for a lead-free solder wire drawing machine according to claim 1, characterized in that: A gap is provided between the first wire feeding wheel and the second wire feeding wheel for allowing the lead-free solder wire to pass through.

3. The wire breakage detection device for a lead-free solder wire drawing machine according to claim 1, characterized in that: The tension guide mechanism comprises a mounting plate, a first guide wheel, a guide wheel arm and a swing arm motor; The mounting plate is arranged on the machine base, and a rotating shaft is provided on the mounting plate. One end of the guide wheel arm is connected to the rotating shaft, and the other end of the guide wheel arm is connected to the first guide wheel. The guide wheel arm is used to adjust the swing position of the first guide wheel as the rotating shaft rotates. The output shaft of the swing arm motor is connected to the rotating shaft through a gear transmission member to drive the rotating shaft to rotate.

4. The wire breakage detection device for a lead-free solder wire drawing machine according to claim 3, characterized in that: It also includes a second guide wheel and a third guide wheel, and the second guide wheel and the third guide wheel are arranged on the mounting plates on both sides of the rotating shaft.

5. The wire breakage detection device for a lead-free solder wire drawing machine according to claim 1, characterized in that: It also includes a wire drawing die, which is arranged between the first wire drawing barrel and the second wire drawing barrel, and is used for drawing the lead-free tin wire.

6. The wire breakage detection device for a lead-free solder wire drawing machine according to claim 3, characterized in that: It also includes a wire taking-up motor, the output shaft of which is connected to the shaft end of the wire taking-up reel.

7. The wire breakage detection device for a lead-free solder wire drawing machine according to claim 1, characterized in that: A rubber ring sleeve is arranged in the wire hole.

8. The wire breakage detection device for a lead-free solder wire drawing machine according to claim 6, characterized in that: A controller is also included, and the photoelectric encoder is electrically connected to the wire-taking motor through the controller.

Images