Tinning device and wave soldering machine

Abstract

The utility model relates to the technical field of welding equipment, and provides a tinning device and a wave soldering machine, including a base, a coil shaft, a guide wheel and a counting component, wherein the coil shaft is suitable for placing tin wire; the guide wheel is rotatably connected to the base, and one side of the guide wheel forms a guide channel for the tin wire; the counting component is suitable for counting the number of rotations of the guide wheel or the coil shaft. In the tinning device and the wave soldering machine described in the utility model, the rotation of the guide wheel drives the transmission of the tin wire, and the coil shaft rolls at the same time to realize the transmission of the tin wire; the counting component calculates the number of rotations of the guide wheel or the coil shaft, and then calculates the use length of the tin wire.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a tinning device and a wave soldering machine. Background Art

[0002] In welding equipment, the tinning device is used to supply tin wire to the tin furnace. During the tin wire delivery process, it is difficult to accurately calculate the amount of tin wire used, and it is impossible to add tin wire in time when the tin wire is used up, which affects the smooth progress of welding work. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides a tinning device, which can calculate the use length of the tin material by calculating the number of rotations of the guide wheel or the coil shaft.

[0004] The utility model also discloses a wave soldering machine.

[0005] The utility model provides a tin adding device, comprising:

[0006] Pedestal;

[0007] Coil shaft, suitable for placing tin wire;

[0008] A guide wheel, rotatably connected to the base, one side of the guide wheel forming a guide channel for the tin wire;

[0009] The counting component is suitable for counting the number of rotations of the guide wheel or the coil shaft.

[0010] According to the tin adding device of the embodiment of the utility model, the counting component includes a trigger member and a first sensor, the trigger member is fixedly connected to the guide wheel; the trigger member includes a trigger part, and the trigger part is located on the peripheral side of the guide wheel; the first sensor is arranged on one side of the guide wheel; the first sensor is suitable for detecting the position state of the trigger part.

[0011] According to the tin adding device of the embodiment of the utility model, the trigger member is provided with at least two trigger parts, and a detection gap is provided between two adjacent trigger parts.

[0012] According to the tin adding device of the embodiment of the utility model, each of the triggering parts is evenly distributed on the peripheral side of the triggering member.

[0013] According to the tin adding device of the embodiment of the utility model, the trigger member is a gear, and the trigger part is the teeth of the gear; the trigger member and the guide wheel are coaxially arranged; the tin adding device includes a driving member, and the output shaft of the driving member connects the guide wheel and the trigger member.

[0014] According to the tin adding device of the embodiment of the utility model, the triggering member is in the form of a sheet;

[0015] and / or,

[0016] The trigger part is rod-shaped.

[0017] According to the tinning device of the embodiment of the utility model, the counting component includes an encoder and a second sensor, the encoder is arranged on the guide wheel or the coil shaft, and the second sensor is suitable for detecting the rotation state of the encoder.

[0018] According to the tin adding device of the embodiment of the utility model, at least two guide wheels are provided, and the tin adding device also includes a third sensor, which is provided between the two guide wheels, the third sensor is located on one side of the guide channel and is suitable for detecting the presence or absence of the tin wire.

[0019] According to the tin adding device of the embodiment of the utility model, the tin adding device also includes a guide block, and the guide block is located between the two guide wheels; the guide block includes at least two guide walls, and the guide channel passes through the two guide walls in sequence; a detection space is formed between the two guide walls, and the probe of the third sensor is facing the detection space.

[0020] The utility model also provides a wave soldering machine, comprising a tin furnace and the tin adding device, wherein the tin adding device is suitable for supplying tin wire to the tin furnace.

[0021] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0022] The rotation of the guide wheel drives the transmission of the tin wire, and the coil shaft rolls at the same time to realize the transmission of the tin wire; the counting component calculates the number of rotations of the guide wheel or the coil shaft, and then calculates the used length of the tin wire.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are 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 work.

[0025] Figure 1It is a schematic diagram of the internal structure of the tin adding device provided in the embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the adjusting member of the tin adding device provided in the embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the relationship between the coil shaft and the base of the tinning device provided in the embodiment of the utility model;

[0028] Figure 4 It is a schematic diagram of the relationship between the turntable and the base provided in the embodiment of the utility model;

[0029] Figure 5 It is a schematic diagram of the assembly relationship between the storage component and the base provided in an embodiment of the utility model.

[0030] Reference numerals:

[0031] 100. Base;

[0032] 200, guide wheel; 210, guide channel;

[0033] 300, adjusting member; 310, pressing wheel; 320, first adjusting member; 330, second adjusting member; 340, matching notch; 350, connecting ear; 360, fixing portion;

[0034] 400, locking assembly; 410, locking rod; 411, locking portion; 420, elastic member; 430, sleeve; 440, abutment block;

[0035] 510, base; 512, movable groove; 520, driving member; 540, third sensor;

[0036] 600, guide block; 610, guide wall; 620, detection space;

[0037] 700, counting component; 710, triggering member; 711, triggering unit; 720, first sensor; 730, encoder; 740, second sensor;

[0038] 810, turntable; 820, coil shaft; 830, fourth sensor;

[0039] 910, storage part; 911, material trough; 920, trigger sensor; 930, elastic part. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0041] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model 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 limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0043] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] The first embodiment of the utility model provides a tin adding device, including a base 100, a coil shaft 820, a guide wheel 200 and a counting component 700, wherein the coil shaft 820 is suitable for placing tin wire; the guide wheel 200 is rotatably connected to the base 100, and one side of the guide wheel 200 forms a guide channel 210 for the tin wire; the counting component 700 is suitable for counting the number of rotations of the guide wheel 200 or the coil shaft 820.

[0046] The rotation of the guide wheel 200 drives the transmission of the tin wire, and the coil shaft 820 rolls to realize the transmission of the tin wire; the counting component 700 calculates the number of rotations of the guide wheel 200 or the coil shaft 820, and then calculates the used length of the tin wire.

[0047] It can be understood that the guide wheel 200 is used to drive the tin wire transmission, and the tin wire is wound on the coil shaft 820. When the tin wire is transmitted, the coil shaft 820 rotates, and the number of turns of the tin wire on the coil shaft 820 decreases. According to the number of turns of the coil shaft 820 and the diameter of the coil shaft 820, the length of the tin wire used can be calculated according to the formula.

[0048] Alternatively, the length of the used tin wire can be calculated according to the number of rotations of the guide wheel 200 and the diameter of the guide wheel 200 according to the formula. The length of the used tin wire can be obtained by multiplying the number of rotations of the guide wheel 200 by the diameter of the guide wheel 200. The tin wire is wound on the coil shaft 820 to form multiple layers of tin coils from the inside to the outside. The diameter of the tin coil in the outer layer is larger than the diameter of the tin coil in the inner layer. In comparison, the diameter of the guide wheel 200 is more stable, and the length of the used tin wire is calculated using the number of rotations of the guide wheel 200, and the data obtained is more accurate.

[0049] In one embodiment, see Figure 1 The tin adding device includes an adjusting member 300, which is rotatably connected to the base 100 and is provided with a clamping wheel 310; a guide channel 210 for the tin wire is formed between the clamping wheel 310 and the guide wheel 200; the adjusting member 300 rotates relative to the base 100 so that the clamping wheel 310 approaches or moves away from the guide wheel 200.

[0050] It can be understood that the clamping wheel 310 is away from the guide wheel 200, which makes it convenient for the tin wire to pass through the guide channel 210. The clamping wheel 310 is close to the guide wheel 200 to clamp the tin wire; the guide wheel 200 rotates to use friction to drive the transmission of the tin wire; the adjustment member 300 rotates relative to the base 100 to adjust the distance between the guide wheel 200 and the clamping wheel 310, which can be used for tin wires of different diameters and has high flexibility.

[0051] In the related art, since the friction between the guide wheel 200 and the tin wire is required to achieve the effect of transmitting the tin wire during the welding process, the distance between the two guide wheels 200 is very close, and the tin wire is difficult to be installed between the two guide wheels 200. However, the embodiment of the utility model clamps the tin wire through the guide wheel 200 and the movable clamping wheel 310, which can drive the transmission of the tin wire while supporting the tin wire; the separation and combination of the guide wheel 200 and the clamping wheel 310 is not only conducive to the installation of the tin wire, but also the guide channel 210 can be adjusted to a suitable width. If the width of the guide channel 210 is too small, it will increase the resistance of the tinning process. If the width of the guide channel 210 is too large, it will cause the guide wheel 200 to idle; in addition, the width of the guide channel 210 is adjustable, which is conducive to adapting to tin wires of different sizes.

[0052] It is understandable that when installing the tin wire, the adjusting member 300 can be rotated to move the clamping wheel 310 away, which facilitates the installation of the tin wire; if a guide rail is directly set on the base 100, and the adjusting member 300 is installed on the guide rail, the clamping wheel 310 is moved closer to or away from the guide wheel 200 through the linear movement of the adjusting member 300 on the guide rail, then the guide rail needs to be processed on the base 100, and space for the guide rail needs to be reserved on the base 100, resulting in a larger overall volume. In the embodiment of the utility model, the adjusting member 300 is directly hinged on the base 100, and there is no need to perform excessive processing on the base 100; in the process of installing the tin wire, the adjusting member 300 can be rotated to rotate the clamping wheel 310 outside the base 100, which is conducive to miniaturizing the tinning device while meeting the transmission requirements of the tin wire, reducing the material of the base 100, and thus reducing the production cost.

[0053] It is understandable that in order to ensure that the width of the guide channel 210 is relatively fixed and the clamping wheel 310 is maintained at a specific position in the absence of a large external force, the adjusting member 300 can have its own damping. While realizing the rotation of the adjusting member 300, the relative position between the clamping wheel 310 and the guide wheel 200 is kept fixed by using the resistance of the damping, so that the transmission of the tin wire can proceed smoothly. The adjusting member 300 can be hinged to the base 100 through a pin shaft, and a friction material such as a rubber gasket can be added between the pin shaft and the shaft hole of the adjusting member 300 to improve the damping effect.

[0054] See also Figure 1 In one embodiment, the tinning device further includes a locking assembly 400, which is suitable for fixing the adjusting member 300. The tin wire is passed through the guide channel 210, and the adjusting member 300 is rotated. The locking assembly 400 fixes the pressing wheel 310 to a suitable position to prevent the pressing wheel 310 from shifting during operation, thereby ensuring the normal operation of the tin wire transmission.

[0055] See also Figure 1In one embodiment, the locking assembly 400 includes a locking rod 410, and the adjusting member 300 is provided with two, namely a first adjusting member 320 and a second adjusting member 330; the first end of the locking rod 410 is rotatably connected to the first adjusting member 320, and the second end of the locking rod 410 is suitable for fixing or disengaging from the second adjusting member 330; the relative movement between the first adjusting member 320 and the second adjusting member 330 is limited by the locking rod 410 to fix the first adjusting member 320 and the second adjusting member 330.

[0056] It can be understood that the first adjusting member 320 and the second adjusting member 330 are rotatably connected to the base 100 respectively, and the first adjusting member 320 and the second adjusting member 330 are connected by the locking rod 410 to limit the relative movement between the first adjusting member 320 and the second adjusting member 330, so that the clamping wheel 310 is maintained at a specific position, thereby ensuring that the width of the guide channel 210 is appropriate and improving the stability of the tin feeding process; the first adjusting member 320 and the second adjusting member 330 can be fixed or detached by the second end of the locking rod 410, and the first adjusting member 320 and the second adjusting member 330 are not required to be fixed separately, thereby reducing the operation process. The installation process of the tin wire is made simpler; the tin wire transmitted in the guide channel 210 is simultaneously subjected to the force of the first adjusting member 320 and the second adjusting member 330, the position of the guide wheel 200 is fixed, and the first adjusting member 320 and the second adjusting member 330 are synchronously fixed by a locking rod 410, and the distance between the first adjusting member 320 and the guide wheel 200 and the distance between the second adjusting member 330 and the guide wheel 200 can be synchronously adjusted, thereby narrowing the difference in the force of the first adjusting member 320 and the second adjusting member 330 on the tin wire, so that the force on the tin wire during the transmission process is relatively uniform, which is beneficial to reducing the deviation during the tin feeding process and improving the stability of the tin wire transmission process.

[0057] It can be understood that the first end of the locking rod 410 is rotatably connected to the first adjusting member 320, and two connecting ears 350 can be set on the side of the first adjusting member 320 close to the locking rod 410, and the locking rod 410 is connected between the two connecting ears 350; the two connecting ears 350 can further support the locking rod 410, improve the reliability of the connection, and prevent the locking rod 410 from loosening during rotation; the first adjusting member 320 is hinged to the locking rod 410 through the two connecting ears 350, which can increase the rotation angle range of the locking rod 410 and improve the flexibility of rotation of the locking rod 410.

[0058] In one embodiment, a locking rod 410 may be corresponding to fixing an adjusting member 300. For example, one end of the locking rod 410 is rotatably connected to the base 100, and the other end of the locking member 410 is provided with a locking portion 411, which is suitable for fixing or disengaging the adjusting member 300. The adjusting member 300 is hinged on the base 100, and the base 100 and the adjusting member 300 are connected by the locking rod 410, so as to limit the movement of the adjusting member 300, and then maintain the clamping wheel 310 of the adjusting member 300 in a specific position to ensure the normal tin feeding work.

[0059] See also Figure 1 In one embodiment, two guide wheels 200 can be provided, and the guide wheels 200 correspond to the adjusting members 300 one by one; providing two guide wheels 200 can provide more stable support for the tin wire, and prevent the tin wire from falling off and affecting the welding work; secondly, the two guide wheels 200 can better maintain the transmission path of the tin wire, and prevent the tin wire from being offset or twisted during the transmission process, which affects the tin feeding effect, and make the transmission of the tin wire more stable.

[0060] See also Figure 1 In one embodiment, the tin adding device includes a driving member 520, and the output shaft of the driving member 520 is fixedly connected to the guide wheel 200; the driving member 520 drives the guide wheel 200 to rotate, thereby promoting the tin feeding work; generally, the driving member 520 is a motor; two driving members 520 can be provided, and the two driving members 520 respectively drive the two guide wheels 200 to rotate to achieve dual drive. If one of the driving members 520 fails, the operation of the device can be maintained by relying on the other driving member 520, which can improve the reliability and stability of the tin adding device and reduce the occurrence of accidents; in addition, the setting of two driving members 520 can increase the overall tin feeding speed, balance the load of the two guide wheels 200, and improve work efficiency.

[0061] See also Figure 1 In one embodiment, the tin adding device further includes a third sensor 540, which is disposed between the two guide wheels 200, the third sensor 540 is located on one side of the guide channel 210 and is suitable for detecting the presence of tin wire; the third sensor 540 is disposed to detect the presence of tin wire by the third sensor 540, so as to determine whether the tin feeding work is proceeding normally; generally, the third sensor 540 is a photoelectric sensor, and if the third sensor 540 does not detect the tin wire, it is determined that the tin wire is out of the tin adding device or the tin wire is used up.

[0062] See also Figure 1In one embodiment, the tinning device may further include a guide block 600, and the guide channel 210 partially passes through the guide block 600 and the guide block 600 is located between the two guide wheels 200. The guide block 600 further supports and guides the tin wire to increase stability.

[0063] See also Figure 1 In one embodiment, the guide block 600 includes at least two guide walls 610, and the guide channel 210 passes through the two guide walls 610 in sequence; the guide block 600 is fixedly set on the base 100, and the tin wire is supported by the guide walls 610; the setting of the two guide walls 610 can improve the stability of the tin wire during the movement process, and further enhance the guiding effect. A detection space 620 is formed between the two guide walls 610, and the probe of the third sensor 540 faces the detection space 620. The two guide walls 610 limit part of the tin wire within the detection space 620, which is conducive to the third sensor 540 to detect the tin wire located in the guide channel 210, thereby improving the accuracy of the detection. Of course, a guide hole can also be directly opened on the guide block 600; the third sensor 540 can also be set at one end of the guide block 600.

[0064] Of course, in other embodiments, a guide wheel 200 may also be provided, and two adjusting members 300 are respectively pressed on different positions of the guide wheel 200 so that the tin wire adheres to the surface of the guide wheel 200 for transmission, and the surface of the guide wheel 200 can provide support for the tin wire.

[0065] See also Figure 1 to Figure 2 In one embodiment, the second adjusting member 330 is provided with a matching notch 340 matching with the locking portion 411 on a side facing the locking rod 410 , and the second end of the locking rod 410 is suitable for fixing or disengaging from the matching notch 340 .

[0066] The locking lever 410 is preferably provided with a notch 340 which is adapted to engage the locking lever 410 and engage with the locking lever 410 when the locking lever 410 is engaged.

[0067] In order to achieve standardization of parts and reduce production costs and inventory pressure, the first adjustment member 320 and the second adjustment member 330 may adopt the same structure. For example, the matching notch 340 may be formed between the two connecting ears 350 .

[0068] See also Figure 1 In one embodiment, the locking assembly 400 further includes an elastic member 420, which is sleeved on the locking rod 410 and abuts against the second adjusting member 330. The elastic force of the elastic member 420 is suitable for adjusting the distance between the first adjusting member 320 and the second adjusting member 330. The tension is used to make the pressing wheel 310 press the guide wheel 200 tightly, so as to achieve the clamping and transmission of the tin wire. Since the elastic member 420 is elastic, the distance between the first adjusting member 320 and the second adjusting member 330 can fluctuate within a certain range. Therefore, the guide channel 210 can accommodate tin wires within a certain diameter range, and has flexibility. When adjusting tin wires of different diameters, there is no need to replace different tinning devices, and the adaptability range is wide. Generally, the elastic member 420 is a spring.

[0069] See also Figure 1 In one embodiment, the clamping wheel 310 of the first adjusting member 320 is disposed on a side close to the second adjusting member 330 , and the clamping wheel 310 of the second adjusting member 330 is disposed on a side close to the first adjusting member 320 .

[0070] It is understandable that the pressing wheel 310 of the first adjusting member 320 and the pressing wheel 310 of the second adjusting member 330 are both arranged on the opposite side. In this way, when the distance between the first adjusting member 320 and the second adjusting member 330 is shortened, the pressing wheel 310 of the first adjusting member 320 presses the first guide wheel 200, and the pressing wheel 310 of the second adjusting member 330 presses the second guide wheel 200, so that the forces acting on the guide wheel 200 by the first adjusting member 320 and the second adjusting member 330 can be adjusted synchronously. For example, the elastic member 420 is fixed to the second end of the locking rod 410, and the elastic force of the elastic member 420 is used to make the second adjusting member 330 approach the first adjusting member 320, so that the two pressing wheels 310 press the guide wheel 200 at the same time. The elastic member 420 may be fixed to the second end of the locking rod 410 by welding or the like, or a limit block may be provided at the second end of the locking rod 410 , with one end of the elastic member 420 abutting against the limit block.

[0071] In other embodiments, the pressing wheel 310 of the first adjusting member 320 is arranged on a side away from the second adjusting member 330, and the pressing wheel 310 of the second adjusting member 330 is arranged on a side away from the first adjusting member 320. The elastic member 420 can be arranged between the first adjusting member 320 and the second adjusting member 330, and the elastic force of the elastic member 420 is used to make the first adjusting member 320 and the second adjusting member 330 move away from each other. At this time, the pressing wheel 310 of the first adjusting member 320 and the pressing wheel 310 of the second adjusting member 330 simultaneously press the guide wheel 200, so that the two adjusting members can act synchronously on the guide wheel 200.

[0072] See also Figure 1 In one embodiment, the locking assembly 400 further includes a sleeve 430 and an abutment block 440. The sleeve 430 is sleeved on the second end of the locking rod 410. On the one hand, the sleeve 430 can be used as a handle of the locking rod 410. On the other hand, the elastic member 420 can be arranged inside the sleeve 430. The sleeve 430 protects the elastic member 420 and can also prevent the elastic member 420 from scratching the operator. It can be understood that the elastic member 420 partially extends out of the sleeve 430, which is convenient for the elastic member 420 to 0 acts on the second adjusting member 330; one end of the elastic member 420 away from the sleeve 430 is connected to the abutment block 440, and the abutment block 440 is located between the second adjusting member 330 and the sleeve 430. The elastic member 420 abuts against the second adjusting member 330 through the abutment block 440, which can increase the force-bearing area of ​​the second adjusting member 330, and the elastic member 420 can also be compressed by pressing the abutment block 440, which is convenient for operation and avoids the operator directly pressing the elastic member 420 and being scratched by the elastic member 420 during operation.

[0073] See also Figure 1 to Figure 2 In one embodiment, the adjusting member 300 is provided with a fixing portion 360 on a side away from the locking rod 410 , one end of the fixing portion 360 is hinged to the base 100 , and the other end is rotatably connected to the pressing wheel 310 .

[0074] It can be understood that one end of the fixing portion 360 is hinged to the base 100 to achieve relative rotation between the adjusting member 300 and the base 100, and the other end of the fixing portion 360 is rotatably connected to the clamping wheel 310, which can drive the clamping wheel 310 away from or close to the guide wheel 200; since the clamping wheel 310 is arranged at the end of the fixing portion 360, the clamping wheel 310 can be greatly displaced by rotating the fixing portion 360 within a small range of angles, which is beneficial to the installation of the tin wire.

[0075] See also Figure 1In one embodiment, the counting component 700 includes a trigger member 710 and a first sensor 720, the trigger member 710 is fixedly connected to the guide wheel 200; the trigger member 710 includes a trigger portion 711, and the trigger portion 711 is located on the peripheral side of the guide wheel 200; the first sensor 720 is arranged on one side of the guide wheel 200; the first sensor 720 is suitable for detecting the position state of the trigger portion 711.

[0076] It can be understood that the trigger member 710 rotates synchronously with the guide wheel 200, the trigger portion 711 is located on the peripheral side of the guide wheel 200, and the first sensor 720 detects the position state of the trigger portion 711, calculates the number of rotations of the trigger member 710, and then obtains the number of rotations of the guide wheel 200. The length of the tin wire passing through the guide wheel 200 is calculated according to the diameter and number of rotations of the guide wheel 200 according to the calculation formula.

[0077] Generally, the first sensor 720 is a photoelectric sensor, which has the characteristics of high detection accuracy and fast response speed, which is conducive to improving the accuracy of counting and reducing measurement errors. During the detection process, the photoelectric sensor does not need to directly contact the trigger member 710, avoiding physical contact to cause wear or damage to the trigger member 710, and reducing the impact on the tin wire transmission work; the first sensor 720 is set on the base 100, and when the trigger member 710 rotates, the trigger part 711 passes through the probe of the third sensor 540, and the third sensor 540 detects the trigger part 711, thereby calculating the number of rotations of the guide wheel 200.

[0078] It is understandable that the trigger member 710 can be a cylinder coaxially arranged with the guide wheel 200, or it can be ring-shaped; the embodiment of the utility model can include a fixing screw, through which the trigger member 710 and the guide wheel 200 are connected; the trigger member 710 and the guide wheel 200 can be integrally formed to facilitate processing and installation.

[0079] In one embodiment, the trigger member 710 is provided with at least two trigger parts 711, and a detection gap is provided between two adjacent trigger parts 711. The detection gap is suitable for separating two adjacent trigger parts 711, so that different trigger parts 711 can trigger the third sensor respectively.

[0080] See also Figure 1 In one embodiment, the trigger parts 711 are evenly distributed around the trigger member 710, which can improve the detection accuracy; for example, two trigger parts 711 are symmetrically arranged on opposite sides of the trigger member 710. If the third sensing member detects two trigger parts 711, the guide wheel 200 rotates one circle, if the third sensing member detects three trigger parts 711, the guide wheel 200 rotates one and a half circles, and so on. Similarly, three, four or five trigger parts 711 can be evenly arranged around the trigger member 710 to improve the detection accuracy.

[0081] In one embodiment, the trigger member 710 is a gear, the trigger portion 711 is the teeth of the gear, and the trigger member 710 and the guide wheel 200 are coaxially arranged.

[0082] It is understandable that when the gear rotates, the third sensor 540 detects the teeth of the gear passing by to calculate the number of rotations of the guide wheel 200. Directly using the gear as the trigger member 710 has a low procurement cost and does not require the trigger member 710 to be individually designed and processed, which facilitates subsequent maintenance and replacement. The output shaft of the driving member 520 connects the guide wheel 200 and the trigger member 710. The output shaft of the driving member 520 directly drives the guide wheel 200 and the trigger member 710 to rotate synchronously. At the same time, the output shaft of the driving member 520 can be used as a connecting member between the guide wheel 200 and the trigger member 710, so that the guide wheel 200 and the trigger member 710 are relatively fixed.

[0083] See also Figure 1 In one embodiment, the trigger member 710 is in the form of a sheet. The sheet-like structure can minimize the space occupied by the trigger member 710, making the overall structure of the tinning device more compact. Secondly, the sheet-like design can greatly reduce the materials used for the trigger member 710 and reduce the production cost. Since the trigger member 710 is light and thin, it is easy for the trigger member 710 to fit the guide wheel 200, thereby reducing the relative movement between the guide wheel 200 and the trigger member 710 and improving the accuracy of detection. The trigger member 710 can be a metal sheet. While meeting the requirements of lightweight design, the metal sheet has a certain rigidity to prevent the trigger member 710 from being deformed by force during rotation.

[0084] See also Figure 1 In one embodiment, the trigger portion 711 is rod-shaped; compared with other shapes, the width of the rod-shaped trigger portion 711 is narrower, which is conducive to forming a detection gap between two adjacent trigger portions 711 to improve accuracy, and the rod-shaped trigger portion 711 is relatively slender, and the free end of the trigger portion 711 extends outward and corresponds to the probe of the third sensor 540, thereby avoiding other parts such as the guide wheel 200 from affecting the detection work of the third sensor 540.

[0085] See also Figure 3 In one embodiment, the counting component 700 includes an encoder 730 and a second sensor 740. The encoder 730 is arranged on the guide wheel 200 or the coil shaft 820. The second sensor 740 is suitable for detecting the rotation state of the encoder 730, and then obtaining the number of rotations of the guide wheel 200 or the coil shaft 820, so as to facilitate the calculation of the use length of the tin wire.

[0086] Generally, the tin adding device also includes a base 510, a coil shaft 820 is rotatably connected to the base 510, an encoder 730 is arranged at the end of the coil shaft 820, and a second sensor 740 is arranged on the inner wall of the base 510 and corresponds to the encoder 730, so as to facilitate the detection of the number of rotations of the coil shaft 820.

[0087] The encoder 730 may also be disposed on the guide wheel 200 , and the second sensor 740 is disposed on the base 100 to detect the number of rotations of the guide wheel 200 , thereby calculating the used length of the solder wire.

[0088] The encoder 730 is a magnetic disk or a magnetic steel. Compared with the gear encoder 730, the magnetic encoder 730 can provide higher resolution and more accurately detect the rotation position and speed. It is a contactless sensor that can detect the rotation position and speed through the magnetic field without directly contacting the rotating parts. It can better adapt to high-speed rotation and has stronger anti-interference ability against external vibration and temperature changes. The second sensor 740 can detect the magnetic field changes of the encoder 730, thereby determining the rotation speed and position of the encoder 730, and then calculating the number of rotations of the guide wheel 200 or the coil shaft 820. Generally, the second sensor 740 is a Hall element.

[0089] See also Figure 4 In one embodiment, the tin adding device includes a turntable 810 and a fourth sensor 830 . The turntable 810 is disposed on the base 510 and rotates relative to the base 510 . The fourth sensor 830 is disposed between the base 510 and the turntable 810 and is suitable for detecting the weight of the turntable 810 .

[0090] The tin wire can be placed directly on the turntable 810. As the tin wire is used, the weight of the turntable 810 changes accordingly. The usage of the tin wire is judged based on the weight data of the turntable 810 detected by the fourth sensor 830 to detect the remaining tin wire. The tin wire is generally rolled tin wire, and the turntable 810 can be flexibly rotated as the tin wire is used to avoid twisting of the tin wire during use, which affects the transmission of the tin wire.

[0091] It is understandable that the turntable 810 is disposed on the base 510, and the fourth sensor 830 is disposed between the base 510 and the turntable 810, so that the fourth sensor 830 can obtain the weight of the turntable 810; the fourth sensor 830 is generally a weighing sensor, which is a device that converts a mass signal into a measurable electrical signal output. In other embodiments, the fourth sensor 830 can also be a pressure sensor.

[0092] See also Figure 5In one embodiment, a movable groove 512 is provided in the base 510; the tin adding device also includes a storage member 910, an elastic member 930 and a trigger sensor 920; the storage member 910 is provided with a material groove 911 for the tin wire, and the storage member 910 is movably arranged in the movable groove 512; the elastic member 930 connects the bottom of the storage member 910 and the bottom of the movable groove 512; the trigger sensor 920 is arranged on the side wall of the movable groove 512.

[0093] It is understandable that when the remaining amount of tin wire is sufficient, the elastic member 930 is compressed. During the use of the tin wire, as the tin wire decreases, the storage member 910 moves upward under the elastic force of the elastic member 930. When the tin wire in the trough 911 is lower than the preset amount, the elastic force of the elastic member 930 drives the storage member 910 to move to the set position, thereby triggering the trigger sensor 920. Through the elastic member 930 and the trigger sensor 920, the remaining amount of tin wire can be detected in real time, so as to increase the tin wire in time. The trigger sensor 920 can be a photoelectric switch.

[0094] The second aspect of the utility model also provides a wave soldering machine, including a tin furnace and a tin adding device, wherein the tin adding device is suitable for supplying tin wire to the tin furnace.

[0095] It can be understood that if the tin adding device has the beneficial effects of the above-mentioned embodiments, then the wave soldering machine will correspondingly have the beneficial effects of the above-mentioned embodiments. The specific implementation methods thereof may refer to the above-mentioned embodiments, and will not be described in detail in this application.

[0096] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A tinning device, characterized in that: include: Pedestal; Coil shaft, suitable for placing solder wire; A guide wheel, rotatably connected to the base, one side of the guide wheel forming a guide channel for the tin wire; The counting component is suitable for counting the number of rotations of the guide wheel or the coil shaft.

2. The tin adding device according to claim 1, characterized in that: The counting component includes a trigger and a first sensor, the trigger is fixedly connected to the guide wheel; the trigger includes a trigger part, and the trigger part is located on the circumference of the guide wheel; the first sensor is arranged on one side of the guide wheel; the first sensor is suitable for detecting the position state of the trigger part.

3. The tinning device according to claim 2, characterized in that: The trigger member is provided with at least two trigger parts, and a detection gap is provided between two adjacent trigger parts.

4. The tin adding device according to claim 3, characterized in that: The trigger parts are evenly distributed around the trigger member.

5. The tin adding device according to claim 2, characterized in that: The triggering member is a gear, and the triggering part is the teeth of the gear; the triggering member and the guide wheel are coaxially arranged; the tin adding device includes a driving member, and the output shaft of the driving member connects the guide wheel and the triggering member.

6. The tin adding device according to claim 2, characterized in that: The triggering member is in sheet shape; and / or, The trigger part is rod-shaped.

7. The tin adding device according to any one of claims 1 to 6, characterized in that: The counting component includes an encoder and a second sensor. The encoder is arranged on the guide wheel or the winding shaft. The second sensor is suitable for detecting the rotation state of the encoder.

8. The tin adding device according to any one of claims 1 to 6, characterized in that: At least two guide wheels are provided, and the tin adding device further comprises a third sensor, which is provided between the two guide wheels, is located at one side of the guide channel and is suitable for detecting the presence or absence of the tin wire.

9. The tin adding device according to claim 8, characterized in that: The tin adding device also includes a guide block, which is located between the two guide wheels; the guide block includes at least two guide walls, and the guide channel passes through the two guide walls in sequence; a detection space is formed between the two guide walls, and the probe of the third sensor faces the detection space.

10. A wave soldering machine, characterized in that: It comprises a tin furnace and a tinning device as claimed in any one of claims 1 to 9, wherein the tinning device is suitable for supplying tin wire to the tin furnace.

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