Solder slag scraper mechanism

Abstract

The utility model discloses a solder splash scraper mechanism, relates to chip pin tin soldering field, including the assembly plate and the tin bath that is detachably installed at the front end bottom of assembly plate, be equipped with the transversally set transfer subassembly above the assembly plate, the free end of transfer subassembly is detachably equipped with the rotation subassembly, and the rotation subassembly is equipped with the rotation subassembly. The connecting end of the rotating assembly is connected with a scraper in an inserted mode, and the two ends of the assembling plate are each provided with a position sensor. The transferring assembly is used for driving the rotating assembly to horizontally move left and right, tin slag in the tin bath is pushed from the left end to the right end to be accumulated, automatic cleaning of the tin slag is achieved, meanwhile, the rotating assembly is matched with the position sensor to drive the scraper to automatically turn over, the bottom of the scraper is made to be away from the bottom face of the tin bath, and automatic cleaning of the tin slag is achieved. The bottom scraping is prevented when the transferring assembly drives the scraping plate to reset, the automation degree of tin slag cleaning is greatly improved, shutdown is not needed, the working efficiency is improved, and meanwhile the situation of high-temperature scalding is avoided.

Description

Technical Field

[0001] The utility model relates to the field of chip pin soldering, and particularly relates to a solder dross scraping mechanism. Background Art

[0002] The main purpose of tin plating on chip pins is to cover a layer of tin on the pin surface to increase its welding contact performance and corrosion resistance. By tin plating, a reliable connection between the pins and the circuit board or other components can be ensured, and the stability and reliability of the overall circuit can be improved.

[0003] Most of the existing tin plating methods adopt the method of dipping in tin. The principle is to use liquid solder (solder) to infiltrate the surface of the metal to be soldered to form a bonding layer that is neither the same as the metal to be soldered nor the same as the solder. However, tin dross will accumulate in the tin bath after long-term use of the tin liquid. At this time, manual cleaning is required. Manual cleaning will not only suspend the operation of the soldering equipment, but also have poor cleaning efficiency, affecting the working efficiency of soldering. At the same time, it is easy to touch the high-temperature tin liquid during cleaning, resulting in burns and there is a certain risk. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a solder dross scraping mechanism to solve the problems existing in the above background art.

[0005] The utility model provides the following technical solution: A solder dross scraping mechanism, including an assembly plate and a tin bath detachably installed at the bottom of the front end of the assembly plate. A horizontally arranged transfer assembly is arranged above the assembly plate. A rotating assembly is detachably installed at the free end of the transfer assembly. A scraper is inserted into the connecting end of the rotating assembly. A position sensor is arranged at each end of the assembly plate. Among them, the two position sensors are electrically connected to the transfer assembly and the rotating assembly.

[0006] Preferably, the transfer assembly includes a reduction motor fixedly installed at one end of the back of the assembly plate, synchronous wheels rotatably installed at both ends of the front of the assembly plate, a linear guide rail fixedly installed at the top of the front of the assembly plate, and a slider slidably installed on the linear guide rail. A belt is sleeved on the two synchronous wheels, and the bottom of the slider is fixedly connected to the belt.

[0007] Preferably, the rotating mechanism includes a rotating motor fixedly installed at the rear end of the slider, an assembly block fixedly installed at the front end of the slider, a first pull rod, a second pull rod fixedly installed at the output shaft of the rotating motor, and a connecting rod rotatably inserted at the front end of the assembly block. Among them, a tension spring is commonly hooked at the top of the first pull rod and the second pull rod, and the second pull rod is fixedly connected to the connecting rod.

[0008] Preferably, the slider has an "L" - shaped structure. Its top back is slidably connected to the linear guide rail. Its bottom is fixedly connected to the belt, and the belt passes through the bottom of the slider.

[0009] Preferably, the assembly block is fixedly installed at the front end of the slider and located on the "L"-shaped platform.

[0010] Preferably, the two position sensors are respectively located at both ends of the tin bath.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The present utility model utilizes the provided transfer assembly to drive the rotation assembly to move horizontally left and right, pushing the tin dross in the tin bath from the left end to the right end for accumulation, realizing the automatic cleaning of the tin dross. At the same time, the provided rotation assembly cooperates with the position sensors to drive the scraper to automatically turn over, keeping the bottom of the scraper away from the bottom surface of the tin bath, preventing the transfer assembly from scraping the bottom when driving the scraper to reset, greatly improving the automation degree of cleaning the tin dross, without the need to stop the machine, not only improving the work efficiency, but also avoiding the occurrence of high-temperature burns. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0014] Figure 2 It is a schematic diagram of the transfer assembly structure of the present utility model.

[0015] Figure 3 It is a schematic diagram of the rotation assembly structure of the present utility model.

[0016] The reference numerals are: 1, assembly plate; 2, tin bath; 3, transfer assembly; 31, reduction motor; 32, synchronous pulley; 33, belt; 34, linear guide rail; 35, slider; 4, rotation assembly; 41, rotation motor; 42, first pull rod; 43, second pull rod; 44, tension spring; 45, assembly block; 46, connecting rod; 5, scraper; 6, position sensor. Detailed Embodiment

[0017] The following elaborates on the preferred embodiments of the present utility model in conjunction with the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0018] The present utility model provides a tin dross scraping mechanism, as Figures 1-3 shown, including an assembly plate 1, a tin bath 2 detachably installed at the bottom of the front end of the assembly plate 1, a horizontally arranged transfer assembly 3 disposed above the assembly plate 1, a rotation assembly 4 detachably installed at the free end of the transfer assembly 3, a scraper 5 inserted at the connection end of the rotation assembly 4, and a position sensor 6 provided at each end of the assembly plate 1. The two position sensors 6 are respectively located at both ends of the tin bath 2. Among them, the two position sensors 6 are electrically connected to the transfer assembly 3 and the rotation assembly 4.

[0019] The set transfer component 3 drives the rotating component 4 to move horizontally left and right, pushing the dross in the tin bath 2 from the left end to the right end for accumulation, realizing the automatic cleaning of the dross. At the same time, the set rotating component 4 cooperates with the position sensor 6 to drive the scraper 5 to automatically turn over, so that the bottom of the scraper 5 is far away from the bottom surface of the tin bath 2, preventing the scraper 5 from scraping the bottom when the transfer component 3 drives the scraper 5 to reset. This greatly improves the automation degree of dross cleaning, without the need to stop the machine, not only improving the work efficiency, but also avoiding the occurrence of high-temperature burns.

[0020] The transfer component 3 includes a reduction motor 31 fixedly installed at one end of the back surface of the assembly plate 1, synchronous pulleys 32 rotatably installed at both ends of the front surface of the assembly plate 1, a linear guide rail 34 fixedly installed at the top of the front surface of the assembly plate 1, and a slider 35 slidably installed on the linear guide rail 34. A belt 33 is sleeved on the two synchronous pulleys 32, and the bottom of the slider 35 is fixedly connected to the belt 33. Among them, the slider 35 has an "L" - shaped structure, its top back surface is slidably connected to the linear guide rail 34, its bottom is fixedly connected to the belt 33, and the belt 33 passes through the bottom of the slider 35.

[0021] When the transplanting component works, the reduction motor 31 drives the synchronous pulley 32 at its output end to rotate. With the cooperation of the other synchronous pulley 32, it drives the operation of the belt 33. The belt 33 is connected to the slider 35 and drives the slider 35 to move under the action of the linear guide rail 34.

[0022] The rotating mechanism includes a rotating motor 41 fixedly installed at the rear end of the slider 35, an assembly block 45 fixedly installed at the front end of the slider 35, a first pull rod 42 fixedly installed at the output shaft of the rotating motor 41, a second pull rod 43, and a connecting rod 46 rotatably inserted at the front end of the assembly block 45. Among them, a tension spring 44 is commonly hooked at the tops of the first pull rod 42 and the second pull rod 43, the second pull rod 43 is fixedly connected to the connecting rod 46, and the assembly block 45 is fixedly installed at the front end of the slider 35 and is located on the "L" - shaped platform.

[0023] When the rotating mechanism works, the rotating motor 41 rotates 90 degrees to the right, driving the first pull rod 42 to rotate 90 degrees to the right. The first pull rod 42 drives the second pull rod 43 to rotate 90 degrees to the right through the tension spring 44. Because the second pull rod 43 is directly connected to the scraper 5, the scraper 5 rotates 90 degrees to the left.

[0024] Working principle of the utility model: When the scraper 5 is on the left side of the starting position of the tin bath 2, the scraper 5 is in a vertical state. At this time, the first pull rod 42, the second pull rod 43 and the tension spring 44 are on the left side of the scraper 5. The transfer assembly 3 drives the scraper 5 to move to the right, so that the scraper 5 moves the tin dross floating on the tin bath 2 to the right side of the tin bath 2. When the position sensor 6 on the right side senses that the scraper 5 is in place, the transfer assembly 3 stops running. At this time, the rotating assembly 4 rotates to the right, driving the first pull rod 42 to rotate 90 degrees to the right. The first pull rod 42 drives the second pull rod 43 to rotate 90 degrees to the right through the tension spring 44. Because the second pull rod 43 is directly connected to the scraper 5, the scraper 5 rotates 90 degrees to the left, making it in a horizontal state and separating from the tin dross. When the proximity switch senses that the scraper is in a horizontal state, the scraper transfer motor and the synchronous pulley mechanism drive the scraper to move to the left, and the cycle repeats.

[0025] It should be noted that: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0026] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above embodiment. Any equivalent modification or change made by those of ordinary skill in the art according to the disclosure of the utility model shall be included in the protection scope recorded in the claims.

Claims

1. Solder dross scraping mechanism, including an assembly plate (1) and a solder bath (2) detachably installed at the bottom of the front end of the assembly plate (1), characterized in that: Above the said assembly plate (1), there is a horizontally arranged transfer component (3). A rotatable component (4) is detachably installed at the free end of the transfer component (3). A scraper (5) is inserted into the connecting end of the rotatable component (4). One position sensor (6) is arranged at each end of the assembly plate (1). Among them, the two position sensors (6) are electrically connected to the transfer component (3) and the rotatable component (4).

2. The dross scraping mechanism according to claim 1, wherein: The said transfer component (3) includes a reduction motor (31) fixedly installed at one end of the back of the assembly plate (1), synchronous wheels (32) rotatably installed at both ends of the front of the assembly plate (1), a linear guide rail (34) fixedly installed at the top of the front of the assembly plate (1), and a slider (35) slidably installed on the linear guide rail (34). A belt (33) is sleeved on the two synchronous wheels (32). The bottom of the slider (35) is fixedly connected to the belt (33).

3. The dross scraper (5) mechanism according to claim 1, characterized in that: The said rotatable component includes a rotary motor (41) fixedly installed at the rear end of the slider (35), an assembly block (45) fixedly installed at the front end of the slider (35), a first pull rod (42) fixedly installed at the output shaft of the rotary motor (41), a second pull rod (43), and a connecting rod (46) rotatably inserted into the front end of the assembly block (45). Among them, a tension spring (44) is jointly hooked at the tops of the first pull rod (42) and the second pull rod (43). The second pull rod (43) is fixedly connected to the connecting rod (46).

4. The dross scraping mechanism according to claim 2, wherein: The said slider (35) is in an "L" - shaped structure. Its top back surface is slidably connected to the linear guide rail (34). Its bottom is fixedly connected to the belt (33), and the belt (33) passes through the bottom of the slider (35).

5. The dross scraping mechanism according to claim 3, characterized in that: The said assembly block (45) is fixedly installed at the front end of the slider (35) and is located on the platform of the "L" - shaped structure.

6. The dross scraping mechanism according to claim 1, characterized in that: The two position sensors (6) are respectively located at both ends of the tin bath (2).

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