A manual tin feeding pen

Abstract

The utility model discloses a manual tin sending pen, including pen body, winding tin wheel and tin strip etc, mainly be equipped with main wheel and vice wheel in pen body, the flange portion of this main wheel and / or vice wheel is exposed to pen body lateral wall, and the one end of vice wheel axle is fixed on the elastic suspension of pen body lateral wall, and through the elastic bias of the elastic suspension that has to main wheel direction, to make the occlusal region of vice wheel and main wheel form the elastic compression, and the elastic bias force can make the occlusal region produce the friction of enough to hold tin strip, in this way, the end of tin strip is in turn passed through the feed port of pen body tail, the occlusal region of main wheel and vice wheel, and then is worn from the discharge port of pen body head, at this moment, only need to manually operate the exposed flange, and the tin strip can be held by the occlusal region and push out to the discharge port direction. The improved structure does not need power supply support and can be used independently, so has compact structure, small, low in production cost, easy and flexible operation, safe in use, uniform and accurate in coating and the advantages such as.

Description

Technical Field

[0001] This utility model relates to a solder feeding pen for conveying solder bars to assist soldering, specifically a manual solder feeding pen. Background Technology

[0002] In the field of electronic assembly, manual soldering has long relied on the "one hand holding the soldering iron, the other feeding the solder bar" operating mode. This mode poses significant safety risks, as the close distance between the solder bar grip and the soldering iron tip makes accidental burns highly likely, especially in confined spaces. To address these technical issues, an integrated automatic soldering tool has been introduced to the market, employing a synchronous electric soldering and feeding solution. However, in practical use, the following new problems have emerged: First, there are deficiencies in control precision. Due to the response delay of the servo motor, the soldering leads cannot be evenly and accurately covered with solder paste. Second, the internal power supply structure is complex and bulky, increasing production and maintenance costs while also affecting the ease and flexibility of operation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a manual soldering pen that is compact in structure, small in size, easy and flexible to operate, safe to use, and provides uniform and precise solder paste application.

[0004] The technical problem of this utility model is solved by the following technical solution:

[0005] A manual solder feeder includes a pen body and a solder winding wheel located at the tail of the pen body. The solder winding wheel is wound with solder strips. The pen body has a main wheel rotatably mounted via a main wheel shaft and a secondary wheel rotatably mounted via a secondary wheel shaft. The rims of the main wheel and / or the secondary wheel are exposed on the side wall of the pen body. One end of the secondary wheel shaft is fixed to an elastic cantilever on the side wall of the pen body. The elastic cantilever has an elastic bias towards the main wheel, and this elastic bias causes an elastically clamping engagement area to be formed between the secondary wheel and the main wheel. The elastic bias of the elastic cantilever causes the engagement area to generate a frictional force sufficient to clamp the solder strip. The end of the solder strip passes sequentially through the feed port at the tail of the pen body, the engagement area of ​​the main wheel and the secondary wheel, and exits from the discharge port at the head of the pen body. The exposed rim is manually turned, and the solder strip is clamped by the engagement area and pushed out towards the discharge port.

[0006] The pen body is provided with a guide channel extending from the inlet to the outlet, and the cross-sectional shape of the guide channel matches the shape of the solder bar.

[0007] The pen body is provided with a first core and a second core that are fixed together. The opposite inner surfaces of the first core and the second core are each provided with an axially extending groove, and after the first core and the second core are joined together, the opposite grooves are joined together to form the guide channel.

[0008] The pen body is formed by two half-shells that fit together and are fixed in place.

[0009] The two half-shells are respectively provided with positioning grooves on their opposite inner surfaces for positioning and embedding the first core and the second core.

[0010] The main wheel includes a main actuating gear and a main drive wheel arranged coaxially, and the secondary wheel includes a secondary actuating gear and a secondary drive wheel arranged coaxially. The main actuating gear meshes with the secondary actuating gear, and a meshing area is formed between the main drive wheel and the secondary drive wheel.

[0011] The surfaces of both the main drive wheel and the auxiliary drive wheel in the interlocking area are provided with textured or toothed structures that create frictional force to clamp the solder bar.

[0012] The elastic cantilever is formed by hollowing out a U-shaped groove on the side wall of the pen body, with one end of the elastic cantilever integrally formed with the side wall of the pen body and the other end suspended and elastic.

[0013] The pen body is provided with a mounting plate at the tail end. One end of the mounting plate is rotatably mounted at the tail end of the pen body. The tin-winding wheel is rotatably mounted at the other end of the mounting plate via a tin-winding shaft. The tin-winding shaft is detachably connected to the mounting plate via a quick-release structure. The quick-release structure includes a circular boss on the mounting plate and a groove at the end of the tin-winding shaft.

[0014] The outer circumferential surface of the circular boss is provided with a radially protruding locking block. The slide groove includes an axially extending guide section with a width greater than the width of the locking block, and a circumferentially extending locking section with a depth greater than the width of the locking block. When the roller shaft is pressed into the circular boss axially and rotates, the locking block slides into the locking section along the guide section to form a self-locking mechanism.

[0015] Compared with the prior art, this utility model mainly provides a novel manual solder feeder, which includes a main wheel and a secondary wheel disposed in the pen body. The rim of the main wheel and / or the secondary wheel is exposed on the side wall of the pen body. One end of the secondary wheel shaft is fixed to an elastic cantilever on the side wall of the pen body. Through the elastic bias of the elastic cantilever towards the main wheel, an elastically clamping engagement area is formed between the secondary wheel and the main wheel. The elastic bias can generate a frictional force sufficient to clamp the solder bar in the engagement area. In this way, after the end of the solder bar passes through the feed port at the tail of the pen body, the engagement area of ​​the main wheel and the secondary wheel in sequence, it passes out from the discharge port at the head of the pen body. At this time, the exposed rim can be manually moved to clamp the solder bar in the engagement area and push it out towards the discharge port. Obviously, since this manual soldering pen does not need to be integrated with the soldering iron or require a power source to operate, and its overall structure only includes components such as the pen body, solder roller, main roller, and auxiliary roller, its structure is more compact and smaller in size. This reduces production and maintenance costs while improving ease of operation and flexibility. At the same time, this manual soldering pen can flexibly adjust the amount of solder delivered according to actual use, ensuring even and precise solder paste application and making it safer to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 for Figure 1 The left view.

[0018] Figure 3 for Figure 1 The right view.

[0019] Figure 4 for Figure 1 The first type of perspective stereoscopic view.

[0020] Figure 5 for Figure 1 The second type of perspective stereoscopic view.

[0021] Figure 6 for Figure 1 3D exploded view.

[0022] Figure 7 for Figure 1 A schematic diagram of the structure after removing one half of the shell and the first core.

[0023] Figure 8 for Figure 6 Enlarged view of point A.

[0024] Figure 9 This is a schematic diagram of one of the half-shell structures. Detailed Implementation

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-9 As shown, 1. Pen body, 11. Half shell, 12. Feed port, 13. Feed port, 14. Flexible cantilever, 15. Main wheel shaft, 16. Secondary wheel shaft, 17. Positioning groove, 18. Barb, 19. Hook hole, 2. Tin winding wheel, 21. Winding wheel shaft, 22. Slide groove, 221. Inlet section, 222. Locking section, 3. Tin bar, 31. Guide channel, 311. Channel, 4. Main wheel, 41. Main actuating gear, 42. Main drive wheel, 5. Secondary wheel, 51. Secondary actuating gear, 52. Secondary drive wheel, 6. Mounting plate, 61. Circular boss, 62. Locking block, 7. First core, 8. Secondary core, 9. Screw. The same labels in each figure represent the same parts.

[0027] A type of manual soldering pen, such as Figures 1-6 As shown, this invention mainly relates to a solder feeding tool for manually feeding solder bars to assist soldering. Its structure includes a pen body 1 and a solder winding wheel 2 located at the tail of the pen body, on which a solder bar 3 is wound.

[0028] The pen body 1 is formed by two half shells 11 that are fixed together. Between the two half shells 11, there are multiple pairs of barbs 18 and hook holes 19 that cooperate with each other to increase the accuracy of the alignment.

[0029] The solder roller 2 is mounted on the tail of the pen body via the mounting plate 6. Specifically, one end of the mounting plate 6 is rotatably mounted on the tail of the pen body, and the solder roller 2 is rotatably mounted on the other end of the mounting plate 6 via the roller shaft 21. In this way, the solder roller 2 mounted on the other end of the mounting plate 6 can rotate around one end of the mounting plate according to the actual use, thereby adjusting the direction and angle of the solder roller 2 feeding the solder bar 3.

[0030] Meanwhile, the winding shaft 21 is detachably connected to the mounting plate 6 via a quick-release structure to facilitate the assembly and disassembly of the solder winding wheel 2 and the winding of the solder bar 3. This quick-release structure includes a circular boss 61 on the mounting plate 6 and a groove 22 at the end of the winding shaft 21; wherein, the outer circumferential surface of the circular boss 61 is provided with a radially protruding locking block 62, as in this embodiment, for example... Figure 6 As shown, two symmetrically distributed locking blocks 62 are provided, and corresponding slides 22 are also provided in two positions. Each slide 22 is as follows: Figure 8 The diagram shows an axially extending guide section 221, the width of which is greater than the width of the locking block 62, and a circumferentially extending locking section 222, the depth of which is also greater than the width of the locking block 62. Therefore, by simply pressing the roller shaft 21 axially into the circular boss 61 and rotating it, the locking block 62 can slide along the guide section 221 into the locking section 222 to form a self-locking mechanism.

[0031] The pen body 1 is provided with a main wheel 4 rotatably mounted via a main wheel shaft 15 and a secondary wheel 5 rotatably mounted via a secondary wheel shaft 16. One end of the main wheel shaft 15 is connected to one of the half-shells 11, that is... Figure 6 The lower half-shell shown is integrally formed, with the other end of the main wheel shaft 15 serving as a free end to facilitate the insertion of the main wheel 4, and awaiting the other half-shell, namely... Figure 6 After the upper half shell and the lower half shell are engaged and fixed, the upper half shell can be fixed to the free end of the main wheel shaft 15 by screws 9 passing through it. This can prevent the engagement of the two half shells 11 from loosening and prevent the main wheel 4 from coming off the free end of the main wheel shaft 15.

[0032] One end of the auxiliary wheel axle 16 is fixed to the elastic cantilever 14 on the side wall of the pen body, specifically as follows: Figure 5 , Figure 6 As shown, one end of the auxiliary wheel axle 16 is integrally formed with the elastic cantilever 14 on the side wall of the lower half shell, while the other end of the auxiliary wheel axle 16 is used as a free end to facilitate the insertion of the auxiliary wheel 5. After the two half shells 11 are aligned and fixed, the auxiliary wheel 5 can be prevented from coming off the free end of the auxiliary wheel axle 16.

[0033] The main wheel 4 includes a main actuating gear 41 and a main drive wheel 42 arranged coaxially, and the auxiliary wheel 5 includes an auxiliary actuating gear 51 and an auxiliary drive wheel 52 arranged coaxially; the main actuating gear 41 meshes with the auxiliary actuating gear 51.

[0034] The main drive wheel 42 and the auxiliary drive wheel 52 form a meshing area. Since one end of the auxiliary wheel shaft 16 is fixed to the elastic cantilever 14, the elastic bias of the elastic cantilever towards the main wheel 4 can be used to elastically press the meshing area between the main wheel 4 and the auxiliary wheel 5, that is, between the main drive wheel 42 and the auxiliary drive wheel 52. Furthermore, the surfaces of both the main drive wheel 42 and the auxiliary drive wheel 52 that form the meshing area are provided with textured or toothed structures. In this embodiment, for example... Figure 6 As shown, the surfaces of the main drive wheel 42 and the auxiliary drive wheel 52 adopt a toothed structure. Therefore, in conjunction with the elastic biasing force of the elastic cantilever 14, the meshing area can generate a frictional force sufficient to clamp the solder bar 3. Furthermore, the meshing area with elastic biasing force can be applied to solder bars 3 of various outer diameters.

[0035] The rims of the main wheel 4 and / or the auxiliary wheel 5 are exposed on the side wall of the pen body. That is to say, either only the rim of the main wheel 4 is exposed on the side wall of the pen body, or the rim of the auxiliary wheel 5 is exposed on the side wall of the pen body, or both the rims of the main wheel 4 and the auxiliary wheel 5 are exposed on the side wall of the pen body. Manually turning the exposed rims will drive the main wheel 4 and the auxiliary wheel 5 to rotate synchronously.

[0036] In this embodiment, the rims of the main actuating gear 41 and the main drive wheel 42 constituting the main wheel 4 are exposed on the side wall of the pen body, and the rims of the auxiliary actuating gear 51 and the auxiliary drive wheel 52 constituting the auxiliary wheel 5 are also exposed on the side wall of the pen body. This is to improve the convenience of manual operation. The main wheel 4 and the auxiliary wheel 5 are both designed with exposed rims so that users can select the actuation method according to their operating habits.

[0037] Therefore, after the end of the solder bar 3 passes through the feed port 12 at the tail of the pen body, the meshing area of ​​the main wheel 4 and the auxiliary wheel 5 in sequence, it passes out from the discharge port 13 at the head of the pen body. At this time, the exposed wheel rim can be manually moved, and the solder bar 3 can be clamped by the meshing area and pushed out towards the discharge port 13.

[0038] In addition, the pen body 1 is also provided with a guide channel 31 extending from the inlet 12 to the outlet 13. The cross-sectional shape of the guide channel matches the shape of the solder bar 3. The structure of the guide channel 31 is as follows: Figure 6 , Figure 7 As shown, a first core 7 and a second core 8 are provided inside the pen body 1 and are fixed together. The first core 7 and the second core 8 are respectively positioned and embedded in the positioning grooves 17 provided on the opposite inner sides of the two half shells 11. The opposite inner sides of the first core 7 and the second core 8 are each provided with an axially extending channel 311. After the first core 7 and the second core 8 are engaged, the opposite channels 311 are engaged to form a guide channel 31. Therefore, when the solder bar 3 is sent out through the engagement area, it can be guided along the guide channel 31, thereby preventing the occurrence of conveying twisting or bending.

[0039] This utility model of a manual solder feeder does not need to be integrated with a soldering iron, nor does it require a power source to operate. Its overall structure only includes components such as the pen body 1, the solder feeding wheel 2, the main wheel 4, and the auxiliary wheel 5. Therefore, the structural design is more compact and the size is smaller, which reduces production and maintenance costs while improving the ease and flexibility of operation.

[0040] Moreover, this manual soldering pen can flexibly adjust the amount of solder delivered according to actual use, so that the solder paste is applied evenly and accurately, and it is also safer to use.

[0041] The basic principles and main features of this utility model have been described above. Those skilled in the art should understand that this utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A manual solder feeder, comprising a pen body (1) and a solder winding wheel (2) disposed at the tail of the pen body, wherein a solder strip (3) is wound on the solder winding wheel, characterized in that, The pen body (1) is provided with a main wheel (4) rotatably mounted via a main wheel shaft (15) and a secondary wheel (5) rotatably mounted via a secondary wheel shaft (16). The rims of the main wheel (4) and / or the secondary wheel (5) are exposed on the side wall of the pen body. One end of the secondary wheel shaft (16) is fixed to an elastic cantilever (14) on the side wall of the pen body. The elastic cantilever (14) has an elastic bias towards the main wheel (4), and through this elastic bias, an elastically pressed engagement area is formed between the secondary wheel (5) and the main wheel (4). The elastic bias of the elastic cantilever (14) generates a frictional force in the engagement area sufficient to clamp the solder bar (3). The end of the solder bar (3) passes through the feed port (12) at the tail of the pen body, the meshing area of ​​the main wheel (4) and the auxiliary wheel (5) in sequence, and then exits from the discharge port (13) at the head of the pen body; the exposed wheel rim is manually moved, and the solder bar (3) is clamped by the meshing area and pushed out towards the discharge port (13).

2. The manual solder feeder according to claim 1, characterized in that, The pen body (1) has a guide channel (31) extending from the inlet (12) to the outlet (13), and the cross-sectional shape of the guide channel (31) matches the shape of the solder bar (3).

3. A manual solder feeder according to claim 2, characterized in that, The pen body (1) is provided with a first core (7) and a second core (8) that are fixed together. The opposite inner surfaces of the first core (7) and the second core (8) are each provided with an axially extending channel (311). After the first core (7) and the second core (8) are joined together, the opposite channels (311) are joined together to form the guide channel (31).

4. A manual solder feeder according to claim 3, characterized in that, The pen body (1) is formed by two half shells (11) being fixed together.

5. A manual solder feeder according to claim 4, characterized in that, The two half-shells (11) are respectively provided with positioning grooves (17) on their opposite inner sides for positioning and embedding the first core (7) and the second core (8).

6. A manual solder feeder according to claim 1, characterized in that, The main wheel (4) includes a main actuating gear (41) and a main drive wheel (42) arranged coaxially, and the auxiliary wheel (5) includes an auxiliary actuating gear (51) and an auxiliary drive wheel (52) arranged coaxially. The main actuating gear (41) meshes with the auxiliary actuating gear (51), and a meshing area is formed between the main drive wheel (42) and the auxiliary drive wheel (52).

7. A manual solder feeder according to claim 6, characterized in that, The surfaces of the main drive wheel (42) and the auxiliary drive wheel (52) in the biting area are provided with textures or tooth-shaped structures that form frictional force to clamp the tin bar (3).

8. A manual solder feeder according to claim 1, characterized in that, The elastic cantilever (14) is formed by hollowing out a U-shaped groove on the side wall of the pen body, and one end of the elastic cantilever (14) is integrally formed with the side wall of the pen body, while the other end is suspended and has elasticity.

9. A manual solder feeder according to claim 1 or 4, characterized in that, The pen body (1) is provided with a mounting plate (6) at the tail. One end of the mounting plate is rotatably mounted at the tail of the pen body. The tin-winding wheel (2) is rotatably mounted at the other end of the mounting plate (6) via a tin-winding shaft (21). The tin-winding shaft (21) is detachably connected to the mounting plate (6) via a quick-release structure. The quick-release structure includes a circular boss (61) on the mounting plate (6) and a groove (22) at the end of the tin-winding shaft (21).

10. A manual solder feeder according to claim 9, characterized in that, The outer circumferential surface of the circular boss (61) is provided with a radially protruding locking block (62). The slide groove (22) includes an axially extending guide section (221) with a width greater than that of the locking block (62) and a circumferentially extending locking section (222) with a depth greater than that of the locking block (62). When the roller shaft (21) is pressed into the circular boss (61) axially and rotates, the locking block (62) slides into the locking section (222) along the guide section (221) to form a self-locking mechanism.

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