Rosin recovery device for circuit board processing

Abstract

The utility model discloses a circuit board processing rosin recovery device which comprises a frame body and a recovery mechanism, a conveying belt is movably installed in the frame body, a spray head is fixedly arranged above the conveying belt, the spray head is communicated with a material conveying pipe, the material conveying pipe is communicated with a material storage tank, and the recovery mechanism comprises a supporting plate, a scraping plate and a collecting box. The supporting plate is fixedly arranged in the frame body, the bottom of the supporting plate can abut against the inner side wall of the conveying belt, the scraping plate is arranged below the conveying belt and located within the vertical projection range of the supporting plate, the scraping plate is connected with the frame body through a lifting mechanism, the top of the collecting box is open, and the collecting box is arranged below the scraping plate. Through the arrangement, the height of the scraping plate is adjusted through the lifting mechanism, the supporting plate and the scraping plate abut against the inner side wall and the outer side wall of the conveying belt correspondingly, solidified rosin cannot push the scraping plate to move, then it is ensured that the scraping plate can collect the rosin solidified on the conveying belt, and the collecting effect on the solidified rosin is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board processing, and particularly relates to a rosin recovery device for circuit board processing. Background Art

[0002] Rosin can prevent short circuits caused by oxidation on circuit boards during soldering. Existing technology generally involves dissolving rosin in alcohol to obtain a rosin solution, which is then applied to the surface of the circuit board to increase its durability. However, during the coating process, excess rosin solution easily drips onto the conveyor belt carrying the circuit boards, increasing production costs.

[0003] Chinese patent publication number CN219334676U discloses a rosin coating device, which includes a U-shaped support frame with a conveyor belt movably installed inside the U-shaped support frame. The lower end of the conveyor belt is attached to a scraper, and the left end of the scraper is slidably connected to a rectangular plate. A first horizontal plate is arranged perpendicularly to the left end of the rectangular plate, and a second horizontal plate is arranged parallel to the first horizontal plate above the first horizontal plate. The second horizontal plate is connected to the left end of the scraper. The above scheme uses a spring between the first and second horizontal plates to effectively avoid gaps between the conveyor belt and the scraper, ensuring the rosin cleaning effect.

[0004] Alcohol is volatile, and rosin is easily solidified on the surface of the conveyor belt in a low-temperature environment. When the above solution is used, the solidified rosin is easily pushed downward to remove the scraper, resulting in poor collection effect of the solidified rosin in the above solution. Utility Model Content

[0005] The utility model aims to provide a rosin recovery device for processing circuit boards, so as to solve the problem of poor collection effect of solidified rosin in the above-mentioned solution.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A rosin recovery device for circuit board processing includes a frame body and a recovery mechanism, a conveyor belt is movably installed in the frame body, a nozzle is fixedly provided above the conveyor belt, a material delivery pipe is provided in communication with the nozzle, and the material delivery pipe is communicated with a storage tank, the recovery mechanism includes a support plate, a scraper and a collection box, the support plate is fixedly provided in the frame body, and the bottom of the support plate can abut against the inner side wall of the conveyor belt, the scraper is provided below the conveyor belt, and the scraper is located within the vertical projection range of the support plate, the scraper is connected to the frame body through a lifting mechanism, and the top of the collection box is open and is provided below the scraper.

[0008] The principle and effect of this technical solution:

[0009] Before work begins, the height of the scraper is adjusted through the lifting mechanism so that the scraper pushes the conveyor belt to abut against the support plate, and then multiple circuit boards are placed on the conveyor belt one by one. When the conveyor belt carries the circuit boards through the nozzle, the nozzle applies the rosin solution in the storage tank to the circuit board through the feed pipe. The excess rosin solution drips onto the conveyor belt, and some rosin solidifies on the surface of the conveyor belt. When this part of the rosin passes through the scraper, it cannot push the scraper to move downward. The scraper scrapes the rosin on the surface of the conveyor belt and makes it fall into the collection box below.

[0010] Through the above arrangement, the height of the scraper is adjusted using the lifting mechanism, so that the support plate and the scraper are respectively in contact with the inner and outer walls of the conveyor belt, and the solidified rosin cannot push the scraper to move, thereby ensuring that the scraper can collect the rosin solidified on the conveyor belt, thereby improving the collection effect of the solidified rosin.

[0011] In the present invention, the bottom of the scraper is fixedly connected to a cross bar, and the front and rear ends of the top of the cross bar are respectively fixed with vertical bars. The lifting mechanism includes a rotating shaft and a rod sleeve fixed vertically on the front and rear sides of the frame body. Screws are rotatably inserted in the rod sleeves. The top of the vertical rod is slidably inserted in the bottom of the rod sleeve and is fitted on the screw. The rotating shaft is rotatably set in the support plate, and the two ends of the rotating shaft are respectively rotatably passed through the frame body and the rod sleeve. The two screws are respectively connected to the rotating shaft through a transmission assembly.

[0012] In the present invention, the transmission assembly includes a first bevel gear and a second bevel gear. The first bevel gear is fixedly sleeved on the top of the screw side wall, and the second bevel gear is fixedly sleeved on the rotating shaft and meshes with the first bevel gear.

[0013] In the present invention, a ratchet is fixedly mounted on the side wall of the rotating shaft at the front side of the rod sleeve, a torsion spring shaft is fixedly mounted on the front side of the rod sleeve, and a pawl cooperating with the ratchet is outer-mounted on the torsion spring shaft.

[0014] The principle and effect of this technical solution:

[0015] When the rotating shaft is rotated clockwise, the ratchet pushes the pawl open. At the same time, the first bevel gear fixedly mounted on the top of the side wall of the screw is engaged with the second bevel gear fixedly mounted on the rotating shaft, thereby driving the two screws to rotate. The vertical rod cannot rotate with the screw, so the vertical rod moves up and down with the rotation of the screw, thereby driving the cross rod and the scraper to move up and down. When the scraper moves to the appropriate position, the pawl restricts the ratchet from rotating counterclockwise.

[0016] Through the above arrangement, on the one hand, the purpose of adjusting the height of the scraper through the lifting mechanism is achieved, thereby improving the practicality of the utility model. On the other hand, after the scraper is adjusted to an appropriate position, the rotating shaft can be prevented from rotating counterclockwise, thereby preventing the scraper from moving downward during operation, thereby ensuring the scraper's collection effect on rosin.

[0017] In the present invention, a rotating handle is fixedly provided at the front end of the rotating shaft. Through the above arrangement, it is convenient for the staff to rotate the rotating shaft, thereby improving the practicality of the present invention.

[0018] In the present invention, the scraper forms an angle with the horizontal plane. Through the above arrangement, the scraper can improve the collection effect of the rosin on the conveyor belt.

[0019] In the present invention, a heating plate is fixedly connected to the side wall of the scraper. Through the above arrangement, the collection effect of the scraper on the rosin on the conveyor belt can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the axonometric drawing of the overall structure of the utility model;

[0021] Figure 2 This is a front sectional view of the utility model;

[0022] Figure 3 This is a right side axonometric sectional view of the present invention;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0024] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0027] The figure marks in the drawings of the specification include: 10, frame body; 11, conveyor belt; 12, pawl; 21, nozzle; 22, feed pipe; 31, support plate; 32, scraper; 321, horizontal bar; 322, vertical bar; 33, collecting box; 41, rod sleeve; 42, rotating shaft; 421, ratchet; 422, rotating handle; 43, screw; 51, first bevel gear; 52, second bevel gear.

[0028] As attached Figure 1-4As shown, the utility model discloses a rosin recovery device for circuit board processing, including a frame body 10 and a recovery mechanism, a conveyor belt 11 is movably installed in the frame body 10, a nozzle 21 is fixedly provided above the conveyor belt 11, the nozzle 21 is connected to a feed pipe 22, and the feed pipe 22 is connected to a storage tank (not shown in the figure), the recovery mechanism includes a support plate 31, a scraper 32 and a collection box 33, the support plate 31 is fixedly provided in the frame body 10, and the bottom of the support plate 31 can abut against the inner side wall of the conveyor belt 11, the scraper 32 is provided below the conveyor belt 11, and the scraper 32 is located within the vertical projection range of the support plate 31, the scraper 32 is connected to the frame body 10 through a lifting mechanism, and the top of the collection box 33 is open and is provided below the scraper 32.

[0029] In this embodiment, the bottom of the scraper 32 is fixedly connected to a cross bar 321, and the front and rear ends of the top of the cross bar 321 are respectively fixed with vertical rods 322. The lifting mechanism includes a rotating shaft 42 and a rod sleeve 41 fixed vertically on the front and rear sides of the frame body 10. Screws 43 are rotatably inserted in the rod sleeve 41. The top of the vertical rod 322 is slidably inserted in the bottom of the rod sleeve 41 and is fitted on the screw 43. The rotating shaft 42 is rotatably set in the support plate 31, and the two ends of the rotating shaft 42 are respectively rotatably passed through the frame body 10 and the rod sleeve 41. The two screws 43 are respectively connected to the rotating shaft 42 through a transmission assembly.

[0030] In this embodiment, the transmission assembly includes a first bevel gear 51 and a second bevel gear 52 . The first bevel gear 51 is fixedly sleeved on the top of the side wall of the screw 43 , and the second bevel gear 52 is fixedly sleeved on the rotating shaft 42 and meshes with the first bevel gear 51 .

[0031] In this embodiment, a ratchet 421 is fixedly mounted on the side wall of the rotating shaft 42 in front of the rod sleeve 41 . A torsion spring shaft is fixedly mounted on the front of the rod sleeve 41 . A pawl 12 cooperating with the ratchet 421 is outer-mounted on the torsion spring shaft.

[0032] In this embodiment, a rotating handle 422 is fixedly provided at the front end of the rotating shaft 42 .

[0033] In this embodiment, the scraper 32 forms an angle with the horizontal plane, 75°<α<90°.

[0034] In this embodiment, a heating plate (not shown in the figure) is fixedly connected to the side wall of the scraper 32.

[0035] The specific implementation process is as follows:

[0036] Before the work starts, the height of the scraper 32 is adjusted by the lifting mechanism so that the scraper 32 pushes the conveyor belt 11 to abut against the support plate 31, and then multiple circuit boards are placed on the conveyor belt 11 one by one. When the conveyor belt 11 carries the circuit boards and passes through the nozzle 21, the nozzle 21 applies the rosin solution in the storage tank to the circuit boards through the feeding pipe 22. The excess rosin solution drips onto the conveyor belt 11, and part of the rosin solidifies on the surface of the conveyor belt 11. When this part of the rosin passes through the scraper 32, it cannot push the scraper 32 to move downward. The scraper 32 scrapes the rosin on the surface of the conveyor belt 11 and makes it fall into the collection box 33 below.

[0037] When the rotating shaft 42 is rotated clockwise, the ratchet 421 pushes the pawl 12 away. At the same time, the first bevel gear 51 fixedly mounted on the top of the side wall of the screw 43 is engaged with the second bevel gear 52 fixedly mounted on the rotating shaft 42, thereby driving the two screws 43 to rotate. The vertical rod 322 cannot rotate with the screw 43, so that the vertical rod 322 moves up and down with the rotation of the screw 43, thereby driving the cross bar 321 and the scraper 32 to move up and down. When the scraper 32 moves to the appropriate position, the pawl 12 limits the ratchet 421 to rotate counterclockwise.

[0038] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions or features in the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A rosin recovery device for circuit board processing, characterized in that: include: A frame body, wherein a conveyor belt is movably installed in the frame body, a nozzle is fixedly provided above the conveyor belt, the nozzle is connected to a material delivery pipe, and the material delivery pipe is connected to a material storage tank; The recycling mechanism includes a support plate, a scraper and a collection box. The support plate is fixedly arranged in the frame body, and the bottom of the support plate can abut against the inner wall of the conveyor belt. The scraper is arranged below the conveyor belt and is located within the vertical projection range of the support plate. The scraper is connected to the frame body through a lifting mechanism. The top of the collection box is open and is arranged below the scraper.

2. The rosin recovery device for circuit board processing according to claim 1, characterized in that: The bottom of the scraper is fixedly connected to a cross bar, and the front and rear ends of the top of the cross bar are respectively fixed with vertical bars. The lifting mechanism includes a rotating shaft and a rod sleeve fixed vertically on the front and rear sides of the frame body. Screws are rotatably inserted in the rod sleeves. The top of the vertical rod is slidably inserted in the bottom of the rod sleeve and is fitted on the screw. The rotating shaft is rotatably set in the support plate, and the two ends of the rotating shaft are respectively rotatably passed through the frame body and the rod sleeve. The two screws are respectively connected to the rotating shaft through a transmission assembly.

3. The rosin recovery device for circuit board processing according to claim 2, characterized in that: The transmission assembly includes a first bevel gear and a second bevel gear. The first bevel gear is fixedly sleeved on the top of the side wall of the screw, and the second bevel gear is fixedly sleeved on the rotating shaft and meshes with the first bevel gear.

4. The rosin recovery device for circuit board processing according to claim 3, characterized in that: The side wall of the rotating shaft is fixed with a ratchet on the front side of the rod sleeve, the front side of the rod sleeve is fixed with a torsion spring shaft, and the outer sleeve of the torsion spring shaft is provided with a pawl that cooperates with the ratchet.

5. The rosin recovery device for circuit board processing according to any one of claims 2 to 4, characterized in that: A rotating handle is fixedly provided at the front end of the rotating shaft.

6. The rosin recovery device for circuit board processing according to claim 1, characterized in that: The scraper forms an angle with the horizontal plane.

7. The rosin recovery device for circuit board processing according to claim 1, characterized in that: The scraper side wall is fixedly connected with a heating plate.

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