Solder containing mechanism and solder sucker

Abstract

The utility model belongs to the technical field of tin soldering, and particularly relates to a solder containing mechanism and a solder sucker, the solder containing mechanism comprises a tin pipe and at least two tin bars, one end of the tin pipe is communicated with a suction nozzle, and the other end of the tin pipe is communicated with a negative pressure opening of a negative pressure mechanism to form a negative pressure cavity inside; the tin bars are arranged at intervals in the circumferential direction of the negative pressure cavity and define a containing cavity used for containing welding flux, the cross section of each tin bar is flat, each tin bar is provided with four side faces in the circumferential direction, and the four side faces are spiral faces extending in the axial direction of the tin bars. Solder is evenly adsorbed on the surface of the spiral surface, the solder is prevented from being stacked at the front end of the tin tube, the containing cavity formed by the double-spiral structure can contain the solder, enough space is reserved between the two tin bars so that follow-up cleaning can be facilitated, and in addition, the flat spiral shape has the large surface area so that more solder can be rapidly adsorbed.

Description

Technical Field

[0001] The utility model belongs to the technical field of soldering, and in particular relates to a solder containing mechanism and a solder sucker. Background Art

[0002] A Taiwan patent with announcement number TWM376368U1 discloses an improved structure of a desoldering gun, which includes a gun body, a handle, a heated desoldering end tube, a tin material containing module, a control switch and a heated suction actuating module; wherein the tin material containing module is arranged on one side of the gun body, and includes an outer tube, a tin material containing component and a rear end cover with a vent hole, wherein the tin material containing component is a cylindrical and breathable structure composed of a spiral metal strip, and the heated desoldering end tube absorbs solder into the outer tube under the action of negative pressure, and contains and concentrates the solder in the cylindrical tin material containing component, however, the cylindrical structure formed by the tin material containing component is composed of a spiral metal strip, and there is a gap between two adjacent circles, and the absorbed tin material will enter the gap, making it difficult to clean. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to solve the problem that the cylindrical structure formed by the tin material receiving component in the prior art is composed of spiral metal strips, there is a gap between two adjacent circles, and the sucked tin material will enter the gap, resulting in difficulty in cleaning, a solder receiving mechanism and a tin sucker are now provided.

[0004] The utility model solves the technical problem by adopting a technical solution: a solder receiving mechanism, which is arranged on a welding tool, the welding tool comprising a suction nozzle at the front end, a negative pressure mechanism for providing negative pressure to the suction nozzle, and a receiving mechanism arranged between the suction nozzle and the negative pressure mechanism for receiving the solder sucked by the suction nozzle, characterized in that the receiving mechanism comprises:

[0005] A tin tube, one end of which is connected to the suction nozzle, and the other end of which is connected to the negative pressure port of the negative pressure mechanism to form a negative pressure cavity inside;

[0006] and at least two tin bars located in the negative pressure cavity, the tin bars are arranged at intervals along the circumference of the negative pressure cavity and enclose a receiving cavity for receiving solder, and the cross section of the tin bars is flat, each tin bar has four side surfaces along its circumference, and the four side surfaces are all spiral surfaces extending along the axial direction of the tin bar;

[0007] The above technical solution utilizes the spiral surface to make the solder evenly adsorbed on its surface, avoiding the solder from piling up at the front end of the tin tube, and the receiving cavity formed by the double spiral structure can accommodate the solder therein, leaving enough space between the two tin bars for subsequent cleaning. In addition, the flat spiral shape has a larger surface area and can quickly absorb more solder.

[0008] Furthermore, the accommodating mechanism also includes a locking assembly for locking the tin tube, which includes a front end cover located at the front end of the tin tube and fixed to the suction nozzle, a rear end cover located at the rear end of the tin tube, a negative pressure ring arranged between the negative pressure mechanism and the rear end cover, and an elastic member located between the negative pressure ring and the welding tool housing, and the negative pressure ring clamps the tin tube between the front end cover and the rear end cover under the elastic force of the elastic member.

[0009] Furthermore, the rear end of the tin bar is fixed by a chuck, and the front end is a suspended end and the end is in contact with the front end cover.

[0010] Furthermore, a first abutting protrusion abutting against the front end of the tin bar is protruded from the side of the front end cover close to the tin tube, and a first step surface for the front end of the tin tube to be inserted is formed between the first abutting protrusion and the front end cover, and a second abutting protrusion abutting against the chuck is protruded from the side of the rear end cover close to the tin tube, and a second step surface for the rear end of the tin tube to be inserted is formed between the second abutting protrusion and the rear end cover.

[0011] Furthermore, the negative pressure collar includes a collar sleeved on the outside of the rear end cover and a negative pressure tube fixed at the rear end of the collar, the collar extends forward to form a sliding portion, and the housing has a sliding rail that cooperates with the sliding portion.

[0012] Furthermore, the sliding portion is provided with a plurality of grooves distributed at intervals.

[0013] Furthermore, a slot for the rear end cover to be inserted into is formed on one side of the negative pressure collar close to the rear end cover, and a snap-in protrusion that cooperates with the slot wall is protruded from the outer peripheral wall of the rear end cover.

[0014] Furthermore, a front through slot for connecting the suction nozzle and the negative pressure chamber is provided at the center of the front cover, a through slot is provided at the center of the chuck, and the tin bar is located outside the front through slot and the through slot.

[0015] Furthermore, a filter is installed between the chuck and the rear end cover.

[0016] The utility model also provides a solder absorber, comprising the above-mentioned solder containing mechanism.

[0017] The beneficial effects of the utility model are as follows: the utility model utilizes the spiral surface to make the solder evenly adsorbed on its surface, thereby preventing the solder from piling up on the front end of the tin tube and causing blockage; the receiving cavity formed by the double spiral structure can accommodate the solder therein, and sufficient space is left between the two tin bars for convenient subsequent cleaning; in addition, the flat spiral shape has a larger surface area and can quickly adsorb more solder.

[0018] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 This is the main view of the desoldering machine;

[0021] Figure 2 This is a cross-sectional view of the desoldering machine;

[0022] Figure 3 is a cross-sectional view of the solder receiving mechanism;

[0023] Figure 4 It is a schematic diagram of the structure of the tin bar;

[0024] Figure 5 It is an exploded view of the solder containment mechanism;

[0025] In the figure:

[0026] 1. Suction nozzle;

[0027] 2. Tin tube;

[0028] 3. tin bar; 301. receiving cavity; 302. plug-in protrusion; 303. side surface;

[0029] 4. front end cover; 401. first abutting protrusion; 402. first step surface; 403. front through groove;

[0030] 5. rear end cover; 501. second abutting protrusion; 502. second step surface; 503. snap-fit ​​protrusion; 504. rear through groove;

[0031] 6. Negative pressure collar; 601. collar; 602. negative pressure tube; 603. sliding portion; 6031. groove; 604. slot;

[0032] 7. Elastic parts;

[0033] 8. Shell; 801. Sliding rail;

[0034] 9. chuck; 901. through groove;

[0035] 10. Filter. DETAILED DESCRIPTION

[0036] The present invention is now described in further detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the subject matter for which protection is sought is limited only by the attached claims and their equivalents.

[0037] like Figure 1 and Figure 2 As shown, a solder receiving mechanism is arranged on a welding tool, the welding tool comprises a suction nozzle 1 located at the front end, a negative pressure mechanism for providing negative pressure to the suction nozzle 1, and a receiving mechanism arranged between the suction nozzle 1 and the negative pressure mechanism for receiving the suction nozzle 1 to absorb the solder, such as Figure 3 and Figure 5 As shown, the receiving mechanism includes a tin tube 2 and at least two tin bars 3:

[0038] The tin tube 2 is a hollow cylindrical structure, one end of which is connected to the suction nozzle 1, and the other end is connected to the negative pressure port of the negative pressure mechanism to form a negative pressure cavity inside. The suction nozzle 1 can suck the molten solder into the negative pressure cavity under the action of negative pressure;

[0039] The tin bars 3 are arranged at intervals along the circumference of the negative pressure chamber and enclose a receiving cavity 301 for receiving solder. The cross-section of the tin bar 3 is rectangular and flat, that is, when the cross-section of the tin bar 3 is rectangular, the tin bar 3 has four side faces 303 along its circumference. It is worth noting that the area of ​​one of the side faces 303 of the tin bar 3 is much larger than the area of ​​the other side face 303 adjacent to it to form the aforementioned flat structure, and the four side faces 303 are all spiral surfaces extending along the axial direction of the tin bar 3. The number of tin bars 3 can be two, three or four, etc., and the number is not limited here, but it is necessary to ensure that there is enough gap between two adjacent tin bars 3 to meet subsequent cleaning requirements. In the utility model, two tin bars 3 are arranged to form a double helix structure, and the two are symmetrically distributed along the axis of the negative pressure chamber. The tin bar with a spiral structure can be formed by twisting a tin bar with a straight structure.

[0040] The negative pressure mechanism is started to draw the negative pressure chamber and the inside of the suction nozzle 1 into a negative pressure environment. The molten solder is sucked into the negative pressure chamber from the suction nozzle 1 under the action of the negative pressure. The spiral surface can make the solder evenly adsorbed on its surface to prevent the solder from piling up on the front end of the tin tube 2. The receiving cavity 301 formed by the double helix structure can accommodate the solder therein, and there is enough space between the two tin bars 3 to facilitate subsequent cleaning. In addition, the flat spiral shape has a larger surface area and can quickly adsorb more solder.

[0041] In some examples, the receiving mechanism further includes a locking assembly for locking the tin tube 2, which includes a front end cover 4 located at the front end of the tin tube 2 and fixed to the suction nozzle 1, a rear end cover 5 located at the rear end of the tin tube 2, a negative pressure collar 6 arranged between the negative pressure mechanism and the rear end cover 5, and an elastic member 7 located between the negative pressure collar 6 and a housing 8 of the welding tool. The negative pressure collar 6 clamps the tin tube 2 between the front end cover 4 and the rear end cover 5 under the elastic force of the elastic member 7;

[0042] The negative pressure collar 6 is partially located inside the shell 8 and partially extends forward from the shell 8. The elastic member 7 is a spring. The outer peripheral wall of the tin tube 2 is protruded with a first limiting protrusion, and the inner peripheral wall of the shell 8 of the welding tool is protruded with a second limiting protrusion, and the spring is located between the two. When the tin in the tin tube 2 is stacked to a certain extent or the tin tube 2 needs to be replaced, the negative pressure collar 6 is pulled backward, the spring is compressed, and the negative pressure collar 6 drives the rear end cover 5 to move backward, and the tin tube 2 is unlocked. At this time, the tin tube 2 can be removed; when installing the tin tube 2, the tin tube 2 is abutted against the front end cover 4, and then the negative pressure collar 6 is loosened. The negative pressure collar 6 is reset under the action of the elastic member 7 to clamp the tin tube 2 between the front end cover 4 and the rear end cover 5.

[0043] In some examples, the rear end of the solder bar 3 is fixed by a chuck 9, such as Figure 4 As shown, the rear end of the tin bar 3 is protruded to form an insertion protrusion 302, and the chuck 9 is provided with an insertion groove for the insertion of the insertion protrusion 302. The insertion of the insertion protrusion 302 into the insertion groove realizes the insertion and fixation of the two. The front end of the tin bar 3 is a suspended end and the end is in contact with the front cover 4.

[0044] In some examples, a first abutting protrusion 401 abutting against the front end of the tin bar 3 is protruded from one side of the front end cover 4 close to the tin tube 2, and a first step surface 402 for the front end of the tin tube 2 to be inserted is formed between the first abutting protrusion 401 and the front end cover 4; a second abutting protrusion 501 abutting against the chuck 9 is protruded from one side of the rear end cover 5 close to the tin tube 2, and a second step surface 502 for the rear end of the tin tube 2 to be inserted is formed between the second abutting protrusion 501 and the rear end cover 5; the first abutting protrusion 401 and the second abutting protrusion 501 position the tin bar 3, and the first step surface 402 and the second step surface 502 position the tin tube 2; when the tin tube 2 is unlocked, the tin bar 3 is also unlocked synchronously, at which time the tin bar 3 can be taken out of the tin tube 2 and the tin can be quickly melted after heating.

[0045] In some examples, the negative pressure ring 6 includes a ring 601 that is sleeved on the outside of the rear end cover 5 and a negative pressure tube 602 fixed at the rear end of the ring 601. The ring 601 extends forward to form a sliding portion 603. The outer shell 8 has a sliding rail 801 that cooperates with the sliding portion 603. The sliding portion 603 cooperates with the sliding rail to ensure the linear movement of the negative pressure ring 6, thereby avoiding skewing during the installation of the tin tube 2, which may cause the tin tube 2 to be unable to be installed in place.

[0046] In some examples, a plurality of grooves 6031 are provided at intervals on the sliding portion 603 to roughen the sliding portion 603 , thereby facilitating the operation of the negative pressure collar 6 , and the grooves 6031 are waist-shaped grooves.

[0047] In some examples, a slot 604 for the rear end cover 5 to be inserted into is provided on one side of the negative pressure ring 6 close to the rear end cover 5, and a snap-in protrusion 503 that cooperates with the slot wall of the slot 604 is protruded from the outer peripheral wall of the rear end cover 5, and an interference fit between the two is achieved through the snap-in protrusion 503 to improve the fixing effect of the two.

[0048] In some examples, a front through groove 403 for connecting the suction nozzle 1 and the negative pressure chamber is opened at the center of the front end cover 4, a through groove 901 is opened at the center of the chuck 9, and a rear through groove 504 for connecting the negative pressure chamber and the negative pressure ring 6 is opened at the center of the rear end cover 5. The tin bar 3 is located at the periphery of the front through groove 403 and the through groove 901, so that all the solder entering from the front through groove 403 can enter the receiving cavity 301 and fully contact with the tin bar 3.

[0049] In some examples, a filter 10 is installed between the chuck 9 and the rear end cover 5 to intercept the solder and prevent the high-temperature solder from entering the negative pressure mechanism and causing damage to the negative pressure mechanism.

[0050] In some examples, such as Figure 1 and Figure 2 As shown, the welding tool is a solder sucker, and the solder receiving mechanism is arranged on the solder sucker.

[0051] Working principle:

[0052] Start the negative pressure mechanism to suck the negative pressure chamber and the inside of the suction nozzle 1 to form a negative pressure environment. The molten solder is sucked into the negative pressure chamber from the suction nozzle 1 under the action of negative pressure. The spiral surface can make the solder evenly adsorbed on its surface to avoid the solder stacking at the front end of the tin tube 2 to produce tin beads. Because the tin beads formed by the solder stacking are large in volume, they will block the connecting port between the suction nozzle 1 and the tin tube 2, resulting in the disconnection between the suction nozzle 1 and the tin tube 2. At this time, the negative pressure mechanism cannot suck the suction nozzle 1, and the tin sucker will not work normally. The spiral surface can make the solder entering the tin tube 2 evenly distributed on it from front to back, and the receiving cavity 301 formed by the double helix structure can accommodate the solder therein. Sufficient space is left between the two tin bars 3 to facilitate subsequent cleaning. In addition, the flat spiral shape has a larger surface area and can quickly absorb more solder.

[0053] When the tin in the tin tube 2 is stacked to a certain extent or the tin tube 2 needs to be replaced, the negative pressure ring 6 is pulled backward, the elastic member 7 is compressed, and the sliding portion 603 cooperates with the sliding rail 801 to ensure that the negative pressure ring 6 moves linearly, and the negative pressure ring 6 drives the rear end cover 5 to move backward, the second step surface 502 is separated from the tin tube 2, and the tin tube 2 is unlocked, and the tin tube 2 can be removed. At this time, the tin bar 3 is also separated from the second abutting protrusion 501, that is, the tin bar 3 is synchronously unlocked, and the tin bar 3 can be taken out of the tin tube 2, and the tin can be quickly melted after heating; when installing the tin tube 2, the tin tube 2 and the front end cover 4 are plugged in, so that the first abutting protrusion 401 is abutted against the tin bar 3, and the first step surface 402 is plugged with the tin tube 2, and then the negative pressure ring 6 is released, and the negative pressure ring 6 is reset under the action of the elastic member 7 to clamp the tin tube 2 and the tin bar 3 between the front end cover 4 and the rear end cover 5, so as to achieve the locking of the tin tube 2 and the tin bar 3.

[0054] The above-mentioned ideal embodiments of the utility model are inspirations. Through the above-mentioned description, relevant staff can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of the utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A solder receiving mechanism, arranged on a welding tool, the welding tool comprising a suction nozzle (1) located at the front end, a negative pressure mechanism for providing negative pressure to the suction nozzle (1), and a receiving mechanism arranged between the suction nozzle (1) and the negative pressure mechanism for receiving the solder sucked by the suction nozzle (1), characterized in that: The facility includes: A tin tube (2), one end of which is connected to the suction nozzle (1), and the other end of which is connected to the negative pressure port of the negative pressure mechanism to form a negative pressure cavity inside; and at least two tin bars (3) located in the negative pressure cavity, the tin bars (3) being arranged at intervals along the circumference of the negative pressure cavity and enclosing a receiving cavity (301) for receiving solder, and the cross-section of the tin bars (3) being flat, each tin bar (3) having a plurality of side surfaces along its circumference, and each side surface being a spiral surface extending along the axial direction of the tin bar (3).

2. The solder receiving mechanism according to claim 1, characterized in that: The receiving mechanism further comprises a locking assembly for locking the tin tube (2), comprising a front end cover (4) located at the front end of the tin tube (2) and fixed to the suction nozzle (1), a rear end cover (5) located at the rear end of the tin tube (2), a negative pressure collar (6) arranged between the negative pressure mechanism and the rear end cover (5), and an elastic member (7) located between the negative pressure collar (6) and a welding tool housing (8), wherein the negative pressure collar (6) clamps the tin tube (2) between the front end cover (4) and the rear end cover (5) under the elastic force of the elastic member (7).

3. The solder receiving mechanism according to claim 2, characterized in that: The rear end of the tin bar (3) is fixed by a chuck (9), and the front end is a suspended end and the end is in contact with the front end cover (4).

4. The solder receiving mechanism according to claim 3, characterized in that: A first abutting protrusion (401) abutting against the front end of the tin bar (3) is protruded from a side of the front end cover (4) close to the tin tube (2), and a first step surface (402) for inserting the front end of the tin tube (2) is formed between the first abutting protrusion (401) and the front end cover (4). A second abutting protrusion (501) abutting against the chuck (9) is protruded from a side of the rear end cover (5) close to the tin tube (2), and a second step surface (502) for inserting the rear end of the tin tube (2) is formed between the second abutting protrusion (501) and the rear end cover (5).

5. The solder receiving mechanism according to claim 2, characterized in that: The negative pressure collar (6) comprises a collar (601) sleeved on the outside of the rear end cover (5) and a negative pressure tube (602) fixed to the rear end of the collar (601); the collar (601) extends forward to form a sliding portion (603); and the housing (8) has a sliding rail (801) that cooperates with the sliding portion (603).

6. The solder receiving mechanism according to claim 5, characterized in that: The sliding portion (603) is provided with a plurality of grooves (6031) distributed at intervals.

7. The solder receiving mechanism according to claim 2, characterized in that: A slot (604) for the rear end cover (5) to be inserted into is formed on a side of the negative pressure collar (6) close to the rear end cover (5), and a snap-in protrusion (503) that cooperates with the slot wall of the slot (604) is protruded from the outer peripheral wall of the rear end cover (5).

8. The solder receiving mechanism according to claim 3, characterized in that: A front through groove (403) for connecting the suction nozzle (1) and the negative pressure chamber is formed at the center of the front cover (4), a through groove (901) is formed at the center of the chuck (9), and the tin bar (3) is located outside the front through groove (403) and the through groove (901).

9. The solder receiving mechanism according to claim 3, characterized in that: A filter screen (10) is installed between the chuck (9) and the rear end cover (5).

10. A desoldering device, characterized in that: It comprises a solder receiving mechanism as described in any one of claims 1-9.

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