Single-power double-action tin ash scraping mechanism

Abstract

The utility model discloses a single-power double-action tin ash scraping mechanism. The sliding seat is arranged on the guide rail; the air cylinder is used for pushing the sliding seat to move along the guide rail; the first swinging plate and the second swinging plate are mounted on the sliding seat in a hinged manner; the scraping plate is connected to the upper ends of the first swinging plate and the second swinging plate; the balance force spring is arranged between the first swing plate and the second swing plate and connected with the scraper and the sliding seat, and the first limiting push rod and the second limiting push rod are arranged at the two ends of the guide rail and can make contact with the first swing plate and the second swing plate correspondingly so that the scraper can ascend and descend. The air cylinder is adopted to push the sliding seat to drive the scraping plate to move along the guide rail, the first limiting push rod and the second limiting push rod are arranged at the two ends of the guide rail to push the first swing plate and the second swing plate to swing so that the scraping plate can ascend and descend along with the first swing plate and the second swing plate, and therefore tin ash can be horizontally scraped by the scraping plate in the reciprocating motion process of the sliding seat along the guide rail.

Description

Technical field:

[0001] The utility model relates to the field of automation, in particular to a single-power double-action tin ash scraping mechanism. Background technology:

[0002] Solder is an important industrial raw material for connecting electronic components in welding circuits. It is a solder with a low melting point, mainly referring to solder made of tin-based alloys. In the automated production process of electronic-related products, electronic component welding is an important process. Before welding electronic components or wires, it is usually necessary to stick solder on the welding part of the wire or electronic component. Therefore, the solder needs to be melted into a liquid state first to facilitate the tinning of the wire or electronic component. However, since the molten solder is in contact with the air, it is easy to form an oxide film on the surface (i.e., the tin film formed by the cooling and solidification of the solder) due to the presence of the oxide film, the tinning of the wire or electronic component will be incomplete, affecting the subsequent welding and other problems. Therefore, in order to avoid the above situation, it is necessary to scrape off the oxide film on the surface of the tin liquid on time, such as: an automatic tin scraping device with Chinese patent application number 201721432353.4. The technical solution disclosed in this patent is mainly to replace manual tin scraping operations, but the patent solution is complex in structure, bulky in size, and poor in versatility, and it is difficult to meet the current market demand.

[0003] In view of this, the inventor proposes the following technical solution. Utility model content:

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a single-power double-action tin ash scraping mechanism.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a single-power double-action tin ash scraping mechanism, comprising: a guide rail, a sliding seat arranged on the guide rail, a cylinder for pushing the sliding seat to move along the guide rail, a first swing plate and a second swing plate hingedly mounted on the sliding seat, a scraper connected to the upper ends of the first swing plate and the second swing plate, a first limit push rod and a second limit push rod arranged at both ends of the guide rail and capable of respectively contacting the first swing plate and the second swing plate to raise and lower the scraper.

[0006] Furthermore, in the above technical solution, the middle part of the first swing plate is hingedly mounted on the sliding seat through a first pin shaft, the upper end of the first swing plate is connected to the scraper through a second pin shaft, and the lower end of the first swing plate extends between the first limit push rod and the second limit push rod, and can swing by colliding with the first limit push rod as the sliding seat moves; the middle part of the second swing plate is hingedly mounted on the sliding seat through a third pin shaft, the upper end of the second swing plate is connected to the scraper through a fourth pin shaft, and the lower end of the second swing plate extends between the first limit push rod and the second limit push rod, and can swing by colliding with the second limit push rod as the sliding seat moves.

[0007] Furthermore, in the above technical solution, the lower end of the second swing plate is lower than the lower end of the first swing plate, and the lower end of the second swing plate is installed on a bearing for contacting and colliding with the second limiting push rod through a fifth pin shaft. There are at least two bearings, and washers are provided on both sides for limiting.

[0008] Furthermore, in the above technical solution, both ends of the first pin shaft and the third pin shaft are limited and fixed by means of retaining springs, and the first limit block and the second limit block for limiting the first swing plate and the second swing plate are respectively provided on both sides of the sliding seat.

[0009] Furthermore, in the above technical solution, the sliding seat is a U-shaped sheet metal, the first swing plate and the second swing plate are both installed in the U-shaped groove, and the first limit block and the second limit block are bent at both ends of the U-shaped groove by stamping.

[0010] Furthermore, in the above technical solution, a connecting block is provided on the second limiting block to be fixed to the piston of the cylinder.

[0011] Furthermore, in the above technical solution, a balancing force spring connecting the scraper and the sliding seat is provided between the first swing plate and the second swing plate.

[0012] Furthermore, in the above technical solution, the lower end of the balancing force spring is installed on the sliding seat through a sixth pin shaft, and the other end of the balancing force spring is installed on the scraper through a connecting rod, and a notch is provided on the scraper for the end of the balancing force spring to pass through, and the connecting rod passes through the end of the balancing force spring and is clamped on the scraper.

[0013] Furthermore, in the above technical solution, the first limit push rod and the second limit push rod are both bolt groups, and the first support seat and the second support seat for installing the first limit push rod and the second limit push rod are respectively provided at both ends of the guide rail, and the bolt group includes a bolt rod for passing through the first support seat or the second support seat and a nut installed on the bolt rod and capable of adjusting the extension length.

[0014] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: in the utility model, a cylinder is used to push the sliding seat to drive the scraper to move along the guide rail, and a first limit push rod and a second limit push rod are arranged at both ends of the guide rail to push the first swing plate and the second swing plate to swing so that the scraper can produce a lifting action, so that in the process of reciprocating motion of the sliding seat along the guide rail, the scraper will produce a cyclic motion of high-position translation, descending motion, low-position translation, and lifting motion, thereby realizing the horizontal scraping of tin ash by the scraper. Description of the drawings:

[0015] Figure 1 The utility model is a three-dimensional Figure 1 ;

[0016] Figure 2 The utility model is a three-dimensional Figure 2 ;

[0017] Figure 3 It is a usage state diagram of the utility model. Specific implementation method:

[0018] The utility model is further described below in conjunction with specific embodiments and drawings.

[0019] See Figure 3 As shown, the utility model is usually arranged on the side of the tin liquid furnace D, wherein the guide rail 1 is arranged parallel to the side of the tin liquid furnace D, and a tin slag box E for collecting tin ash is also arranged on the side of the tin liquid furnace D, and the tin slag box E and the guide rail 1 are respectively located on both sides perpendicular to the tin liquid furnace D, and the scraper 6 moves along the guide rail 1 with the sliding seat 2, and is driven by the first swing plate 4 and the second swing plate 5, at the end where the tin liquid furnace D and the tin slag box E are connected. As the sliding seat 2 moves above the tin liquid furnace D to the other end, and then descends into the tin liquid furnace D and inserts into the upper surface of the tin liquid, and then moves back to the tin slag box E with the sliding seat 2 to scrape off the oxidized tin ash on the surface, and as it is lifted at one end of the tin slag box E, the ash slag is gradually pushed into the tin slag box E, thereby completing the scraping of the tin ash. Among them, the scraper 6 is L-shaped, with one side fixed on the sliding seat 2 and the other side extending to the top of the tin liquid furnace D, and the end is provided with a bending portion 61 that can extend into the tin liquid furnace D, and the width of the bending portion 61 is equal to the width of the furnace mouth of the tin liquid furnace D; the tin liquid furnace D is connected to the tin slag box E at one end and is provided with a first inclined surface D1 and a second inclined surface D2 on both sides of the furnace wall. The first inclined surface D1 located on the inner wall side of the tin liquid furnace D is used to prevent the bending portion 62 from colliding with the furnace wall when the scraper 6 is lifted, and can conveniently scrape the tin ash out of the tin liquid furnace D, and the second inclined surface D2 located on the outer wall side of the tin liquid furnace D is used to facilitate the introduction of tin ash into the tin slag box E, and the width of the second inclined surface D2 is greater than the first inclined surface D1.

[0020] See Figure 1 and Figure 2As shown, a single-power double-action tin ash scraping mechanism comprises: a guide rail 1, a sliding seat 2 arranged on the guide rail 1, a cylinder 3 for pushing the sliding seat 2 to move along the guide rail 1, a first swing plate 4 and a second swing plate 5 hingedly mounted on the sliding seat 2, a scraper 6 connected to the upper ends of the first swing plate 4 and the second swing plate 5, and a first limit push rod 8 and a second limit push rod 9 arranged at both ends of the guide rail 1 and capable of contacting the first swing plate 4 and the second swing plate 5 respectively to raise and lower the scraper 6. The cylinder 3 is used to push the sliding seat 2 to drive the scraper 6 to move along the guide rail 1, and the first limit push rod 8 and the second limit push rod 9 are arranged at both ends of the guide rail 1 to push the first swing plate 4 and the second swing plate 5 to swing so that the scraper 6 generates a lifting motion, so that in the process of the reciprocating motion of the sliding seat 2 along the guide rail 1, the scraper 6 generates a cyclic motion of high-position translation, descending motion, low-position translation, and lifting motion, so that the scraper 6 can scrape the tin ash horizontally.

[0021] The middle part of the first swing plate 4 is hingedly mounted on the sliding seat 2 through the first pin shaft 41, the upper end of the first swing plate 4 is connected to the scraper 6 through the second pin shaft 42, and the lower end of the first swing plate 4 extends between the first limit push rod 8 and the second limit push rod 9, and can collide with the first limit push rod 8 to swing as the sliding seat 2 moves; the middle part of the second swing plate 5 is hingedly mounted on the sliding seat 2 through the third pin shaft 51, the upper end of the second swing plate 5 is connected to the scraper 6 through the fourth pin shaft 52, and the lower end of the second swing plate 5 extends between the first limit push rod 8 and the second limit push rod 9, and can collide with the second limit push rod 9 to swing as the sliding seat 2 moves.

[0022] The lower end of the second swing plate 5 is lower than the lower end of the first swing plate 4, and the lower end of the second swing plate 5 is mounted on a bearing 54 for contacting and colliding with the second limit push rod 9 through a fifth pin 53. The bearing 54 is provided with at least two, and washers 55 are provided on both sides for limiting. By providing the bearing 54 at the bottom of the second swing plate 5 and utilizing the bearing 54 to contact and collide with the second limit push rod 9, not only can the bearing 54 be prevented from getting stuck during collision, but also the bearing 54 has a higher strength, which can improve the overall service life.

[0023] A balancing force spring 7 is provided between the first swing plate 4 and the second swing plate 5 to connect the scraper plate 6 and the sliding seat 2. The lower end of the balancing force spring 7 is mounted on the sliding seat 2 via a sixth pin 71, and the other end of the balancing force spring 7 is mounted on the scraper plate 6 via a connecting rod 72, and a notch 61 is provided on the scraper plate 6 for the end of the balancing force spring 7 to pass through, and the connecting rod 72 passes through the end of the balancing force spring 7 and is clamped on the scraper plate 6. A balancing force spring 7 is provided between the connecting scraper 6 and the sliding seat 2. The balancing force spring 7 can ensure that the first swing plate 4 and the second swing plate 5 can maintain static stability in both swinging positions, that is, when the first swing plate 4 and the second swing plate 5 are in an inclined state, the scraper 6 is at a low position. At this time, the restoring tension generated by the balancing force spring 7 makes the first swing plate 4 and the second swing plate 5 have a tendency to swing downward, thereby preventing the scraper 2 from being lifted up when it moves horizontally at a low position; and when the first swing plate 4 and the second swing plate 5 are in a vertical state, the scraper 6 is in a high position. At this time, the restoring tension generated by the balancing force spring 7 keeps the first swing plate 4 and the second swing plate 5 in a vertical state, thereby preventing the scraper 2 from being forced to drop when it moves horizontally at a high position.

[0024] Both ends of the first pin shaft 41 , the third pin shaft 51 and the sixth pin shaft 71 are fixed by means of a retaining spring A. The two sides of the sliding seat 2 are respectively provided with a first limit block 21 and a second limit block 22 for limiting the first swing plate 4 and the second swing plate 5 .

[0025] The sliding seat 2 is a U-shaped sheet metal, the first swing plate 4 and the second swing plate 5 are both installed in the U-shaped groove, and the first limit block 21 and the second limit block 22 are bent at both ends of the U-shaped groove by stamping.

[0026] The second limit block 22 is provided with a connecting block 31 fixed to the piston of the cylinder 3. The connecting block 31 is T-shaped, and the second limit block 22 is provided with a T-shaped slot for engaging with the connecting block 31, and the end of the connecting block 31 is provided with a mounting hole for fixing with the piston of the cylinder 3.

[0027] The first limiting push rod 8 and the second limiting push rod 9 are both bolt groups, and the two ends of the guide rail 1 are respectively provided with a first support seat 11 and a second support seat 12 for installing the first limiting push rod 8 and the second limiting push rod 9, and the bolt group includes a bolt rod B for passing through the first support seat 11 or the second support seat 12 and a nut C installed on the bolt rod B and capable of adjusting the extension length.

[0028] In summary, when the utility model is working, the guide rail 1 is installed on one side of the tin liquid furnace D and the tin slag box E, and the cylinder 3 pushes the sliding seat 2 to move along the guide rail 1. When the sliding seat 2 moves close to the first limit push rod 8, the first limit push rod 8 collides with the first swing plate 4, causing the first swing plate 4 to swing and drive the scraper 6 to descend, while pulling the second swing plate 5 to swing. In this process, the scraper 6 moves from a high position to a low position, that is, it descends from the top of the tin liquid furnace D to insert the bent portion 62 into the tin liquid; further, the cylinder 3 pulls the sliding seat 2 back along the guide rail 1. In this process, the scraper 6 keeps horizontal movement, so that the bent portion 61 It slides along the upper surface of the tin liquid furnace D to scrape the oxide layer on the surface of the tin liquid toward one end; further, when the sliding seat 2 approaches the second limit push rod 9, the second limit push rod 9 collides with the second swing plate 5, causing the second swing plate 5 to swing and drive the scraper 6 to lift, while pulling the first swing plate 4 to swing as well. In this process, the scraper 6 moves from a low position to a high position, that is, it is lifted from the tin liquid furnace D to the top, and the tin ash is scraped out of the tin liquid furnace D and falls into the tin slag box E, thus completing a scraping action. According to needs, the sliding seat 2 is regularly pushed to move back and forth by controlling the cylinder 3 to realize the surface scraping of tin ash on the tin liquid furnace D.

[0029] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A single-power double-action tin ash scraping mechanism, characterized in that: include: A guide rail (1), a sliding seat (2) arranged on the guide rail (1), a cylinder (3) for pushing the sliding seat (2) to move along the guide rail (1), a first swing plate (4) and a second swing plate (5) hingedly mounted on the sliding seat (2), a scraper (6) connected to the upper ends of the first swing plate (4) and the second swing plate (5), and a first limit push rod (8) and a second limit push rod (9) arranged at both ends of the guide rail (1) and capable of respectively contacting the first swing plate (4) and the second swing plate (5) to raise and lower the scraper (6); The middle part of the first swing plate (4) is hingedly mounted on the sliding seat (2) through a first pin shaft (41), the upper end of the first swing plate (4) is connected to the scraper (6) through a second pin shaft (42), and the lower end of the first swing plate (4) extends between the first limit push rod (8) and the second limit push rod (9), and can collide with the first limit push rod (8) to generate swing as the sliding seat (2) moves; the middle part of the second swing plate (5) is hingedly mounted on the sliding seat (2) through a third pin shaft (51), the upper end of the second swing plate (5) is connected to the scraper (6) through a fourth pin shaft (52), and the lower end of the second swing plate (5) extends between the first limit push rod (8) and the second limit push rod (9), and can collide with the second limit push rod (9) to generate swing as the sliding seat (2) moves.

2. The single-power double-action tin ash scraping mechanism according to claim 1 is characterized in that: The lower end of the second swing plate (5) is lower than the lower end of the first swing plate (4), and the lower end of the second swing plate (5) is mounted on a bearing (54) for contacting and colliding with the second limit push rod (9) through a fifth pin shaft (53), and at least two bearings (54) are provided, and washers (55) are provided on both sides for limiting.

3. The single-power double-action tin ash scraping mechanism according to claim 2 is characterized in that: Both ends of the first pin shaft (41) and the third pin shaft (51) are fixed by means of a retaining spring (A), and a first limit block (21) and a second limit block (22) for limiting the position of the first swing plate (4) and the second swing plate (5) are respectively provided on both sides of the sliding seat (2).

4. The single-power double-action tin ash scraping mechanism according to claim 3 is characterized in that: The sliding seat (2) is a U-shaped sheet metal, the first swing plate (4) and the second swing plate (5) are both installed in the U-shaped groove, and the first limit block (21) and the second limit block (22) are bent at both ends of the U-shaped groove by stamping.

5. The single-power double-action tin ash scraping mechanism according to claim 4 is characterized in that: The second limiting block (22) is provided with a connecting block (31) which is fixed to the piston of the cylinder (3).

6. A single-power double-action tin ash scraping mechanism according to any one of claims 1 to 5, characterized in that: A balancing force spring (7) connecting the scraper (6) and the sliding seat (2) is arranged between the first swing plate (4) and the second swing plate (5).

7. The single-power double-action tin ash scraping mechanism according to claim 6 is characterized in that: The lower end of the balancing force spring (7) is mounted on the sliding seat (2) via a sixth pin shaft (71), and the other end of the balancing force spring (7) is mounted on the scraper (6) via a connecting rod (72), and the scraper (6) is provided with a notch (61) for the end of the balancing force spring (7) to pass through, and the connecting rod (72) passes through the end of the balancing force spring (7) and is clamped on the scraper (6).

8. The single-power double-action tin ash scraping mechanism according to claim 6 is characterized in that: The first limiting push rod (8) and the second limiting push rod (9) are both bolt groups, and the two ends of the guide rail (1) are respectively provided with a first support seat (11) and a second support seat (12) for installing the first limiting push rod (8) and the second limiting push rod (9), and the bolt group includes a bolt rod (B) for passing through the first support seat (11) or the second support seat (12) and a nut (C) installed on the bolt rod (B) and capable of adjusting the extension length.

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