An electrostatic rosin removal device

By introducing a buffer component and a diversion component into the electrostatic rosin removal device, the problem of unstable electrostatic adsorption effect caused by changes in the exhaust gas flow rate is solved, and a more efficient rosin adsorption and removal effect is achieved.

CN119016198BActive Publication Date: 2025-06-27芯朋半导体科技(如东)有限公司
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Patent Information

Application Number
CN202411188477.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2025-06-27
Estimated Expiration
2044-08-28

AI Technical Summary

Technical Problem

The existing electrostatic rosin removal device is connected to multiple sets of chip processing equipment at the waste gas collection source, which causes changes in the exhaust gas flow rate, making it difficult for the static field to fully adsorb rosin, resulting in unstable removal effect.

Method used

An electrostatic rosin removal device is designed, including an electrostatic removal component, a buffer component and a flow diversion component. The buffer component temporarily stores the exhaust gas flowing at high speed through the flow rate sensing unit and the buffer unit, dynamically adjusts the exhaust gas flow path, and extends the residence time of the exhaust gas in the static range.

Benefits of technology

Through the temporary storage of the buffer component and the adjustment of the flow guide component, the exhaust gas flow rate is effectively controlled, the residence time of the exhaust gas in the static range is extended, the adsorption efficiency of rosin is improved, and the static removal effect is stabilized.

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Abstract

The present invention relates to the technical field of rosin treatment equipment, in particular to an electrostatic rosin removal device, including an electrostatic removal component, which includes a housing externally connected to a power source, a negative electrode and a positive electrode respectively installed inside the housing, and an electrostatic interval formed between the negative electrode and the positive electrode. An air inlet and an air outlet are respectively arranged in the electrostatic interval according to the waste gas flow direction; and a buffer component, the buffer component is connected to the air inlet, and includes an air inlet pipe arranged on one side of the housing and connected to the air inlet, a flow rate sensing part arranged inside the air inlet pipe for detecting the waste gas flow rate, and a buffer part arranged on one side of the air inlet pipe and adapted to the flow rate sensing part. The buffer part is used for temporarily storing part of the waste gas flowing through the air inlet pipe at high speed. Through the mutual cooperation among the electrostatic removal component, the buffer component and the diversion component provided by the present invention, the amount of waste gas entering the electrostatic interval can be controlled, and the flow path length of the waste gas in the electrostatic interval can be dynamically adjusted.
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Description

Technical Field

[0001] The present invention relates to the technical field of rosin treatment equipment, in particular to an electrostatic rosin removal device. Background Art

[0002] In the process of chip and semiconductor processing, soldering fluxes are often used. As the main component of the soldering flux, rosin is one of the key factors to ensure the stable connection between electronic components and the PCB. The generated rosin waste gas generally needs to be collected, treated and then discharged. In the prior art, there are various types of rosin waste gas recovery and treatment equipment. Among them, some adsorb rosin in the waste gas by connecting to a high-voltage power supply to form an electrostatic field for collection.

[0003] However, in the existing electrostatic rosin removal devices, since the waste gas collection source is often connected to multiple groups of chip processing equipment at the same time, the amount of rosin waste gas collected and sucked per unit time varies. As a result, the flow rate of the rosin waste gas flowing into the electrostatic field per unit time changes. When the rosin waste gas flows into the electrostatic field at a high speed, the electrostatic field may not have enough time to fully absorb the rosin in the waste gas, and the waste gas with rosin is discharged from the outlet. This affects the rosin removal effect and causes the problem of unstable electrostatic adsorption effect. Summary of the Invention

[0004] In this part, as well as in the abstract and title of the present application, some simplifications or omissions may be made to avoid obscuring the purpose of this part, the abstract and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the problem of unstable electrostatic adsorption effect caused by the change in the flow rate of the waste gas connected to the electrostatic rosin removal device in the above-mentioned prior art, the present invention is proposed.

[0006] Therefore, one object of the present invention is to provide an electrostatic rosin removal device.

[0007] To solve the above technical problems, the present invention provides the following technical solution: An electrostatic rosin removal device, comprising,

[0008] An electrostatic removal component, including a housing externally connected to a power supply, a negative electrode and a positive electrode respectively installed inside the housing, and an electrostatic region formed between the negative electrode and the positive electrode. The electrostatic region is provided with an air inlet and an air outlet according to the waste gas flow direction; and,

[0009] A buffer component, the buffer component is connected to the air inlet, including an intake pipe provided on one side of the housing and connected to the air inlet, a flow rate sensing part provided inside the intake pipe for detecting the waste gas flow rate, and a buffer part provided on one side of the intake pipe and adapted to the flow rate sensing part. The buffer part is used for temporarily storing part of the waste gas flowing through the intake pipe at a high speed.

[0010] As a preferred embodiment of the electrostatic rosin removal device of the present invention, wherein: the flow rate sensing part includes a sliding tube slidably connected to the inner wall of the intake pipe, an elastic element connected between the sliding tube and the intake pipe, and a blocking groove provided on the inner wall of the sliding tube and adapted to the waste gas flow direction.

[0011] As a preferred embodiment of the electrostatic rosin removal device of the present invention, wherein: the buffer part includes a buffer outlet provided on one side of the intake pipe and on the displacement path of the sliding tube, a buffer tank provided on one side of the housing and connected to the buffer outlet, and a secondary intake part provided inside the buffer tank and connected to the air inlet;

[0012] Wherein, the sliding tube is hermetically fitted with the inner wall of the intake pipe.

[0013] As a preferred embodiment of the electrostatic rosin removal device of the present invention, wherein: the secondary intake part includes a collection groove provided inside the buffer tank, a piston plate slidably connected to the inner wall of the collection groove, a ventilation hole provided on one side of the buffer tank, and a hydraulic rod provided on one side of the buffer tank and adapted to the piston plate;

[0014] The ventilation hole and the buffer outlet are respectively located on opposite sides of the piston plate, a connecting member is provided between the buffer tank and the air inlet, and the connecting member and the buffer outlet are located on the same side of the piston plate.

[0015] As a preferred embodiment of the electrostatic rosin removal device of the present invention, wherein: the connecting member includes a connecting pipe connected between the buffer tank and the air inlet, a conical groove provided on the inner wall of the connecting pipe near the buffer tank, a blocking ball provided inside the connecting pipe and adapted to the conical groove, and a compression spring connected between the blocking ball and the inner wall of the connecting pipe near the air inlet;

[0016] Wherein, a gap is left between the blocking ball and the inner wall of the connecting pipe, and the blocking ball is in abutting seal with the conical groove.

[0017] As a preferred embodiment of the electrostatic rosin removal device of the present invention, wherein: it further includes a flow guiding assembly provided inside the housing and adapted to the electrostatic area, the flow guiding assembly includes a flow guiding part provided inside the electrostatic area, and an adjusting part provided inside the housing and adapted to the flow guiding part;

[0018] Wherein, the air inlet is provided at the bottom side of the electrostatic area, and the air outlet is provided at the top side of the electrostatic area.

[0019] As a preferred embodiment of the electrostatic rosin removal device of the present invention, wherein: the diversion part includes a collection bin arranged at the bottom of the housing and adapted to the electrostatic area, a mounting frame arranged inside the collection bin with a gap left between the inner wall of the collection bin and the inner wall of the housing, and a diversion plate arranged at the top of the mounting frame.

[0020] As a preferred embodiment of the electrostatic rosin removal device of the present invention, wherein: the adjustment part includes a drainage bin arranged inside the mounting frame, a drainage fan rotatably connected inside the mounting frame and adapted to the inner wall of the drainage bin, a drainage outlet opened at the top of the drainage bin and adapted to the diversion plate, and an adjustment member arranged at the top of the mounting frame and adapted to the diversion plate;

[0021] Wherein, the intake pipe is communicated with the drainage bin, and the communication position between the intake pipe and the drainage bin is adapted to the drainage fan.

[0022] As a preferred embodiment of the electrostatic rosin removal device of the present invention, wherein: the diversion plate is spiral and longitudinally arranged in not less than two groups, the shape and size of each group of diversion plates are the same, and there is a gap between the diversion plate and the side wall of the positive electrode;

[0023] The adjustment member includes an adjustment motor arranged inside the mounting frame, an adjustment rod arranged at the output end of the adjustment motor and rotatably connected to the housing, and a guide rod arranged parallel to the adjustment rod on the inner side of the housing;

[0024] The topmost diversion plate is threadedly connected to the adjustment rod, the lowermost diversion plate is fixedly connected to the top of the mounting frame, each group of diversion plates is slidably connected to the guide rod, and a connecting member is arranged between adjacent groups of diversion plates.

[0025] As a preferred embodiment of the electrostatic rosin removal device of the present invention, wherein: the connecting member includes a groove arranged on one side of the diversion plate, and a connecting rod rotatably connected to one side of the diversion plate and adapted to the groove, the connecting rods connecting between adjacent groups of diversion plates are rotatably connected to each other, the longitudinal distance between the head and tail ends of each group of diversion plates is adapted to the length of the connecting rod, and the head and tail ends between adjacent groups of diversion plates are mutually aligned;

[0026] The adjustment member further includes a chute arranged inside the drainage fan and radially aligned, a magnetic member slidably connected in the chute, and a telescopic spring connected between the chute and the magnetic member, and a magnetic induction member adapted to the magnetic member is arranged on one side of the adjustment motor.

[0027] Advantages of an electrostatic rosin removal device of the present invention: Through the mutual cooperation among the electrostatic removal component, the buffer component and the diversion component provided in the present invention, the amount of waste gas entering the electrostatic area can be controlled, and the flow path length of the waste gas in the electrostatic area can be dynamically adjusted, thereby relatively prolonging the residence time of the waste gas flowing at high speed in the electrostatic area for sufficient adsorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0029] Figure 1 It is a three-dimensional structure schematic diagram of the overall electrostatic rosin removal device of the present invention.

[0030] Figure 2 It is a front view sectional structure schematic diagram of the electrostatic rosin removal device of the present invention.

[0031] Figure 3 It is an internal structure schematic diagram of the buffer part of the electrostatic rosin removal device of the present invention.

[0032] Figure 4 For the present invention Figure 3 It is an enlarged structure schematic diagram of the place A shown.

[0033] Figure 5 It is a sectional structure schematic diagram of the connection part of the electrostatic rosin removal device of the present invention.

[0034] Figure 6 For the present invention Figure 5 It is an enlarged structure schematic diagram of the place B shown.

[0035] Figure 7 It is an internal three-dimensional structure schematic diagram of the diversion component of the electrostatic rosin removal device of the present invention.

[0036] Figure 8 It is an internal sectional structure schematic diagram of the diversion component of the electrostatic rosin removal device of the present invention.

[0037] Figure 9 For the present invention Figure 8 It is an enlarged structure schematic diagram of the place C shown.

[0038] Figure 10 It is an exploded structure schematic diagram of the mounting frame of the electrostatic rosin removal device of the present invention.

[0039] Figure 11 It is a bottom view sectional structure schematic diagram of the adjusting part of the electrostatic rosin removal device of the present invention.

[0040] In the figure: 100, electrostatic removal component; 101, housing; 102, negative electrode; 103, positive electrode; 104, electrostatic region; 104a, air inlet; 104b, air outlet; 200, buffer component; 201, intake pipe; 202, flow rate sensing part; 202a, sliding pipe; 202b, elastic element; 202c, blocking groove; 203, buffer part; 203a, buffer outlet; 203b, buffer tank; 203c, secondary air intake part; 203c-1, collection tank; 203c-2, piston plate; 203c-3, ventilation hole; 203c-4, hydraulic rod; 203d, connecting part; 203d-1, connecting pipe; 203d-2, conical groove; 203d-3, blocking ball; 203d-4, compression spring; 300, diversion component; 301, diversion part; 301a, collection bin; 301b, mounting bracket; 301c, diversion plate; 302, adjustment part; 302a, drainage bin; 302b, drainage fan; 302c, drainage outlet; 302d, adjustment part; 302d-1, adjustment motor; 302d-2, adjustment rod; 302d-3, guide rod; 302d-4, chute; 302d-5, magnetic part; 302d-6, telescopic spring; 302d-7, magnetic induction part; 302e, connecting part; 302e-1, groove; 302e-2, connecting rod. Specific embodiments

[0041] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the following provides a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings of the specification.

[0042] In the following description, many specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0043] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other from other embodiments.

[0044] Embodiment 1

[0045] Refer to Figure 1 and Figure 2, which is the first embodiment of the present invention. This embodiment provides an electrostatic rosin removal device that can slow down the speed of the exhaust gas entering the electrostatic field to prevent the weakening of the rosin removal effect. It includes: an electrostatic removal component 100 and a buffer component 200. The electrostatic removal component 100 is connected to a power supply to form an electrostatic field to adsorb the flowing rosin exhaust gas. By setting the buffer component 200, when the amount of exhaust gas entering the electrostatic field per unit time is too large, a part of it is temporarily stored, thereby reducing the amount of exhaust gas entering the electrostatic field per unit time.

[0046] Specifically, the electrostatic removal component 100 includes a housing 101 externally connected to a power supply, a negative electrode 102 and a positive electrode 103 respectively installed inside the housing 101, and an electrostatic region 104 formed between the negative electrode 102 and the positive electrode 103. The electrostatic region 104 is provided with an air inlet 104a and an air outlet 104b in the exhaust gas flow direction. After the external power supply is connected, the negative charges on the side of the negative electrode 102 will move towards the positive electrode 103, thereby forming an electric field in the electrostatic region 104. When the exhaust gas in the electrostatic region 104 flows in the electric field, the rosin contained in it will be adsorbed onto the inner wall of the positive electrode 103. A heating wire is provided on the side wall of the positive electrode 103. After being energized and heated, the temperature will rise so that the rosin accumulated on the inner wall of the positive electrode 103 reaches the melting point and melts into rosin liquid, and then flows down along the inner wall of the positive electrode 103 to the bottom for storage. A discharge port is provided at the bottom of the housing 101 for recovering the rosin liquid.

[0047] Furthermore, the buffer component 200 is connected to the air inlet 104a. The buffer component 200 includes an intake pipe 201 provided on one side of the housing 101 and connected to the air inlet 104a, a flow rate sensing part 202 provided inside the intake pipe 201, and a buffer part 203 provided on one side of the intake pipe 201 and adapted to the flow rate sensing part 202. By setting the flow rate sensing part 202, the amount of exhaust gas entering the electrostatic field per unit time is automatically detected.

[0048] Among them, the flow rate sensing part 202 includes a sliding tube 202a slidably connected to the inner wall of the intake pipe 201, an elastic element 202b connected between the sliding tube 202a and the intake pipe 201, and a blocking groove 202c provided on the inner wall of the sliding tube 202a and adapted to the exhaust gas flow direction. In this embodiment, the elastic element 202b is a return spring. When the sliding tube 202a moves, the spring will be compressed and contracted, and the greater the moving distance of the sliding tube 202a, the greater the elastic potential energy accumulated by the spring.

[0049] Preferably, the buffer part 203 includes a buffer outlet 203a arranged on one side of the intake pipe 201 and located on the displacement path of the sliding pipe 202a, a buffer tank 203b arranged on one side of the housing 101 and connected to the buffer outlet 203a, and a secondary intake member 203c arranged inside the buffer tank 203b and connected to the air inlet 104a; the sliding pipe 202a moves under the pressure of the waste gas flow, so that the buffer outlet 203a can be exposed, and when the pressure of the waste gas on the sliding pipe 202a decreases, the elastic element 202b resets, so that the buffer outlet 203a will be covered again, thus blocking the channel leading to the buffer tank 203b. The sliding pipe 202a is hermetically fitted with the inner wall of the intake pipe 201.

[0050] Working principle: The rosin waste gas generated by the chip processing equipment is connected to the intake pipe 201 through the collection pipe. When the waste gas flows through the sliding pipe 202a at a certain speed, a part of the waste gas will be blocked by the blocking groove 202c inside the sliding pipe 202a, so as to push the sliding pipe 202a to move along the axial direction of the intake pipe 201. The movement of the sliding pipe 202a will compress the elastic element 202b, so that part of the kinetic energy of the waste gas flow is converted into the kinetic energy for pushing the sliding pipe 202a to move, and the elastic potential energy accumulated by the compression of the elastic element 202b.

[0051] When the sliding pipe 202a slides a certain distance relative to the inner wall of the intake pipe 201, the buffer outlet 203a will be exposed, so that part of the waste gas flows into the buffer tank 203b through the buffer outlet 203a for temporary storage. Until the amount of waste gas entering the intake pipe 201 decreases, the waste gas temporarily stored in the buffer tank 203b enters the electrostatic area 104 through the secondary intake member 203c and the air inlet 104a.

[0052] After the external power supply is energized, an electrostatic field is formed in the electrostatic area 104 between the negative electrode 102 and the positive electrode 103. When the waste gas entering the electrostatic area 104 from the intake pipe 201 or the secondary intake member 203c through the air inlet 104a flows in the electrostatic field, the rosin contained in it will be adsorbed on the inner wall of the positive electrode 103. The side wall of the positive electrode 103 is heated by an external heating device, so that the rosin accumulated on the inner wall of the positive electrode 103 reaches the melting point, melts into rosin liquid, and then flows down along the inner wall of the positive electrode 103 to the bottom for storage, and finally is taken away and recycled from the collection port at the bottom.

[0053] Embodiment 2

[0054] Refer to Figures 3 - 6 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a collection groove 203c-1, a piston plate 203c-2 and a hydraulic rod 203c-4, which improves the collection buffer of the buffer tank 203b and the efficiency of secondary intake.

[0055] Specifically, the secondary air intake component 203c includes a collection groove 203c-1 provided inside the buffer tank 203b, a piston plate 203c-2 slidably connected to the inner wall of the collection groove 203c-1, a ventilation hole 203c-3 provided on one side of the buffer tank 203b, and a hydraulic rod 203c-4 provided on one side of the buffer tank 203b and adapted to the piston plate 203c-2. By starting the hydraulic rod 203c-4, the hydraulic rod 203c-4 drives the piston plate 203c-2 to move towards the ventilation hole 203c-3, so that the effective collection groove 203c-1 space between the piston plate 203c-2 and the buffer outlet 203a increases and forms a vacuum state. In this way, when the sliding tube 202a moves to expose the buffer outlet 203a, due to the pressure difference, the high-speed rosin waste gas will quickly enter the collection groove 203c-1 from the buffer outlet 203a.

[0056] Furthermore, the ventilation hole 203c-3 and the buffer outlet 203a are respectively located on opposite sides of the piston plate 203c-2. A connecting component 203d is provided between the buffer tank 203b and the air inlet 104a, and the connecting component 203d and the buffer outlet 203a are located on the same side of the piston plate 203c-2. The hydraulic rod 203c-4 is driven in the reverse direction, so that the hydraulic rod 203c-4 drives the piston plate 203c-2 to move towards the connecting pipe 203d-1. When the piston plate 203c-2 moves, the rosin waste gas in the collection groove 203c-1 enters the air inlet 104a through the connecting pipe 203d-1.

[0057] Among them, the connecting component 203d includes a connecting pipe 203d-1 connected between the buffer tank 203b and the air inlet 104a, a tapered groove 203d-2 provided on the inner wall of the connecting pipe 203d-1 near the buffer tank 203b, a blocking ball 203d-3 provided inside the connecting pipe 203d-1 and adapted to the tapered groove 203d-2, and a compression spring 203d-4 connected between the blocking ball 203d-3 and the inner wall of the connecting pipe 203d-1 near the air inlet 104a; in the initial state, when the buffer outlet 203a is blocked by the sliding tube 202a, the waste gas entering the connecting pipe 203d-1 from the inlet pipe 201 direction will exert a pressure on the blocking ball 203d-3 towards the tapered groove 203d-2, thereby further blocking and closing the connecting pipe 203d-1.

[0058] Preferably, there is a gap between the blocking ball 203d-3 and the inner wall of the connecting pipe 203d-1, and the blocking ball 203d-3 is in sealing contact with the tapered groove 203d-2. Only when the blocking ball 203d-3 is subjected to the reverse waste gas flow pressure will it compress the compression spring 203d-4, thereby allowing the waste gas to flow through the gap between the blocking ball 203d-3 and the inner wall of the connecting pipe 203d-1.

[0059] The remaining structure is the same as that of Embodiment 1.

[0060] Working principle: In the initial state, when the buffer outlet 203a is blocked by the sliding tube 202a, by starting the hydraulic rod 203c-4, the hydraulic rod 203c-4 drives the piston plate 203c-2 to move towards the ventilation hole 203c-3, so that the effective collection groove 203c-1 space between the piston plate 203c-2 and the buffer outlet 203a increases and forms a vacuum state. In this way, when the sliding tube 202a moves to expose the buffer outlet 203a, due to the pressure difference, the high-speed rosin waste gas will quickly enter the collection groove 203c-1 from the buffer outlet 203a, thereby reducing the amount of rosin waste gas entering the electrostatic zone 104 per unit time.

[0061] When the amount of waste gas flowing through the intake pipe 201 per unit time decreases, that is, when the amount of waste gas entering the electrostatic zone 104 is lower than the set value, the pressure on the sliding tube 202a decreases, and the elastic element 202b drives the sliding tube 202a to reset, thus covering the buffer outlet 203a again and blocking the channel leading to the buffer tank 203b; at this time, the hydraulic rod 203c-4 is driven in the reverse direction, so that the hydraulic rod 203c-4 drives the piston plate 203c-2 to move towards the connecting pipe 203d-1. While the piston plate 203c-2 moves, it presses the rosin waste gas in the collection groove 203c-1 towards the blocking ball 203d-3 through the connecting pipe 203d-1. The blocking ball 203d-3 will be displaced by compressing the compression spring 203d-4 under pressure, so that the blocking ball 203d-3 is separated from the conical groove 203d-2, and then the rosin waste gas flows into the air port 104a through the gap between the blocking ball 203d-3 and the inner wall of the connecting pipe 203d-1, and then flows into the electrostatic zone 104 through the air inlet 104a for rosin adsorption.

[0062] Furthermore, when the amount of waste gas flowing into the electrostatic zone 104 is too much, a part of the rosin waste gas can be temporarily stored in the buffer tank 203b, thereby reducing the amount of waste gas entering the electrostatic zone 104; when the amount of waste gas flowing into the electrostatic zone 104 is too little, the rosin waste gas temporarily stored in the buffer tank 203b can be discharged into the electrostatic zone 104, so that the amount of waste gas in the electrostatic zone 104 remains moderate, and the relatively high efficiency of removing rosin from the waste gas can be maintained.

[0063] Embodiment 3

[0064] Refer to Figures 7 - 11, which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a diversion component 300 disposed inside the housing 101 and adapted to the electrostatic region 104. The diversion component 300 can dynamically adjust the flow path length of the waste gas in the electrostatic region 104 by the flow rate of the waste gas entering the electrostatic region 104, thereby relatively extending the residence time of the waste gas flowing at a high speed in the electrostatic region 104 for sufficient adsorption.

[0065] Specifically, the diversion component 300 includes a diversion portion 301 disposed inside the electrostatic region 104, and an adjustment portion 302 disposed inside the housing 101 and adapted to the diversion portion 301; the air inlet 104a is provided at the bottom side of the electrostatic region 104, and the air outlet 104b is provided at the top side of the electrostatic region 104. Since the temperature of the rosin waste gas increases during the chip soldering process, according to the principle that hot air moves upward, it is ensured that each time the waste gas enters, it flows in the electrostatic region 104 for a sufficient length of time before being discharged from the air outlet 104b, improving the adsorption effect.

[0066] Furthermore, the diversion portion 301 includes a collection bin 301a disposed at the bottom of the housing 101 and adapted to the electrostatic region 104, a mounting frame 301b disposed inside the collection bin 301a and having a gap between the inner side of the mounting frame 301b and the inner wall of the housing 101, and a diversion plate 301c disposed at the top of the mounting frame 301b. The mounting frame 301b is disposed between the bottom of the electrostatic region 104 and the bottom of the housing 101, and the periphery of the top of the mounting frame 301b is set as a sunken arc surface to facilitate the flow of the rosin liquid.

[0067] Among them, the adjustment portion 302 includes a drainage bin 302a disposed inside the mounting frame 301b, a drainage fan 302b rotatably connected inside the mounting frame 301b and adapted to the inner wall of the drainage bin 302a, a drainage outlet 302c opened at the top of the drainage bin 302a and adapted to the diversion plate 301c, and an adjustment member 302d disposed at the top of the mounting frame 301b and adapted to the diversion plate 301c; the intake pipe 201 is connected to the drainage bin 302a, and the connection position between the intake pipe 201 and the drainage bin 302a is adapted to the drainage fan 302b. When the rosin waste gas enters the housing 101, it will flow into the drainage bin 302a. The drainage fan 302b in the drainage bin 302a will rotate under the impact of the waste gas, and at the same time drive the waste gas to flow in the drainage bin 302a until it flows out through the drainage outlet 302c and enters the electrostatic region 104.

[0068] Furthermore, the flow guiding plates 301c are spiral and longitudinally arranged in no less than two groups. The shape and size of each group of flow guiding plates 301c are the same, and there is a gap between the flow guiding plates 301c and the side wall of the positive electrode 103. The adjusting member 302d includes an adjusting motor 302d-1 arranged inside the mounting frame 301b, an adjusting rod 302d-2 arranged at the output end of the adjusting motor 302d-1 and rotatably connected to the housing 101, and a guiding rod 302d-3 arranged parallel to the adjusting rod 302d-2 inside the housing 101.

[0069] Among them, the uppermost flow guiding plate 301c is threadedly connected to the adjusting rod 302d-2, the lowermost flow guiding plate 301c is fixedly connected to the top of the mounting frame 301b, each group of flow guiding plates 301c is slidably connected to the guiding rod 302d-3, and a connecting member 302e is arranged between adjacent groups of flow guiding plates 301c. By driving the adjusting motor 302d-1 to drive the adjusting rod 302d-2 to rotate, the uppermost flow guiding plate 301c is driven to slide upward along the guiding rod 302d-3. After the upper flow guiding plate 301c moves, the lower flow guiding plate 301c is driven to move upward through the connecting member 302e, so as to form a flow guiding path.

[0070] Preferably, the connecting member 302e includes a groove 302e-1 arranged on one side of the flow guiding plate 301c, and a connecting rod 302e-2 rotatably connected to one side of the flow guiding plate 301c and adapted to the groove 302e-1. The connecting rods 302e-2 connecting adjacent groups of flow guiding plates 301c are rotatably connected to each other. The longitudinal distance between the head and tail ends of each group of flow guiding plates 301c is adapted to the length of the connecting rod 302e-2, and the head and tail ends of adjacent groups of flow guiding plates 301c are mutually aligned. After the upper flow guiding plate 301c moves, the connecting rod 302e-2 between the upper and lower flow guiding plates 301c rotates out of the groove 302e-1 until the connecting rod 302e-2 between the two flow guiding plates 301c rotates to a vertical state. At this time, the tail end of the upper flow guiding plate 301c is exactly aligned with the head end of the lower flow guiding plate 301c to maintain a stable spiral path. When the upper flow guiding plate 301c moves downward, the connecting rod 302e-2 between the upper and lower flow guiding plates 301c will rotate and be received into the groove 302e-1 again, so that the upper and lower flow guiding plates 301c are stacked.

[0071] Preferably, the adjusting member 302d further includes a chute 302d-4 disposed inside the drainage fan 302b and radially aligned, a magnetic member 302d-5 slidably connected in the chute 302d-4, and a telescopic spring 302d-6 connected between the chute 302d-4 and the magnetic member 302d-5. A magnetic induction member 302d-7 adapted to the magnetic member 302d-5 is provided on one side of the adjusting motor 302d-1. The magnetic induction member 302d-7 is provided with multiple-stage magnetic switches, which are arranged in a multi-group concentric circle structure. The magnetic member 302d-5 moves along the radial chute 302d-4 at different rotation speeds of the drainage fan 302b, and can cooperate with different-stage magnetic switches respectively, so as to control the height of the uppermost guide plate 301c through the adjusting motor 302d-1.

[0072] Connect the multiple-stage magnetic switches to the indicator lights respectively. Determine the rotation speed of the drainage fan 302b according to the prompts of the indicator lights corresponding to different-stage magnetic switches. When the rotation speed of the drainage fan 302b is faster, the centrifugal force of the magnetic member 302d-5 following the rotation of the drainage fan 302b is greater, so the tensile force on the telescopic spring 302d-6 is greater, and the distance between the magnetic member 302d-5 and the rotation center is also greater. The magnetic member 302d-5 will be adapted to the magnetic switch closer to the outside of the magnetic induction member 302d-7, and vice versa. Manually drive the adjusting motor 302d-1 through the indicator lights corresponding to different-stage magnetic switches to control the height of the uppermost guide plate 301c. For example, when the indicator light corresponding to the outermost ring of magnetic switches is on, adjust the uppermost guide plate 301c to the highest position, and then adjust the height respectively when the indicator lights of different stages are on; alternatively, cancel the connection between the multiple-stage magnetic switches and the indicator lights and directly connect them to the adjusting motor 302d-1. When the magnetic member 302d-5 cooperates with different-stage magnetic switches of the magnetic induction member 302d-7, automatically control the adjusting motor 302d-1 through the program to control the height of the uppermost guide plate 301c. That is, the faster the waste gas flow rate, the faster the rotation speed of the drainage fan 302b, the greater the centrifugal force on the magnetic member 302d-5, and the greater the distance between the magnetic member 302d-5 and the rotation center. The higher the height of the uppermost guide plate 301c driven by the adjusting motor 302d-1 controlled by the magnetic induction member 302d-7.

[0073] The remaining structures are the same as those in Embodiment 2.

[0074] Working principle: When the rosin waste gas enters the housing 101, it will flow into the diversion chamber 302a. The diversion fan 302b in the diversion chamber 302a will rotate under the impact of the waste gas, and at the same time drive the waste gas to flow in the diversion chamber 302a until it flows out through the diversion outlet 302c and enters the electrostatic zone 104, and flows along the path of the diversion plate 301c in the electrostatic zone 104. During this process, the rosin in the waste gas is adsorbed by the electrostatic field to the inner wall of the positive electrode 103 until it turns into rosin liquid and flows down through the gap between the diversion plate 301c and the inner wall of the positive electrode 103.

[0075] Diversion path adjustment process: The diversion plate 301c is spiral. The spiral path formed by the combination of multiple groups of diversion plates 301c plays a role in diverting the rosin waste gas. In the initial state, each group of diversion plates 301c is received and stacked on the lowermost diversion plate 301c under the action of gravity. By driving the adjustment motor 302d-1 to drive the adjustment rod 302d-2 to rotate, the uppermost diversion plate 301c is driven to slide upward along the guide rod 302d-3. After the uppermost diversion plate 301c moves, the connecting rod 302e-2 between the uppermost and the lower diversion plates 301c rotates out of the groove 302e-1 until the connecting rod 302e-2 between the two diversion plates 301c rotates to a vertical state. At this time, the tail end of the upper diversion plate 301c just aligns and fits with the head end of the lower diversion plate 301c. Then, when the uppermost diversion plate 301c continues to move upward, it will pull the lower diversion plate 301c to slide upward along the guide rod 302d-3 through the connecting rod 302e-2. As the lower diversion plate 301c moves upward, the even lower diversion plate 301c is also pulled upward by the connecting rod 302e-2, so that the total spiral path of the pulled-out diversion plates 301c increases. Furthermore, by driving the adjustment motor 302d-1 to drive the moving height of the uppermost diversion plate 301c, the adjustment of the total spiral path of the diversion plate 301c can be realized. The faster the waste gas flow rate entering the electrostatic zone 104, the longer the total spiral path of the diversion plate 301c, thereby prolonging the time for the high-speed rosin waste gas to remain in the electrostatic zone 104.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A device for removing rosin from static electricity, characterized in that: include, The static electricity removal component (100) comprises a housing (101) connected to an external power source, a negative electrode (102) and a positive electrode (103) respectively mounted on the inner side of the housing (101), and a static electricity zone (104) formed between the negative electrode (102) and the positive electrode (103), wherein the static electricity zone (104) is provided with an air inlet (104a) and an air outlet (104b) respectively according to the exhaust gas flow direction; and, A buffer component (200), the buffer component (200) being connected to the air inlet (104a), comprising an air intake pipe (201) arranged on one side of the housing (101) and connected to the air inlet (104a), a flow velocity sensing portion (202) arranged on the inner side of the air intake pipe (201) and used to detect the flow velocity of exhaust gas, and a buffer portion (203) arranged on one side of the air intake pipe (201) and adapted to the flow velocity sensing portion (202), the buffer portion (203) being used to temporarily store a portion of the exhaust gas flowing through the air intake pipe (201) at a high speed; The flow velocity sensing unit (202) comprises a sliding tube (202a) slidably connected to the inner wall of the air intake pipe (201), an elastic element (202b) connected between the sliding tube (202a) and the air intake pipe (201), and a blocking groove (202c) arranged on the inner wall of the sliding tube (202a) and adapted to the exhaust gas flow direction; The cache portion (203) comprises a cache outlet (203a) arranged on one side of the air intake pipe (201) and located on the displacement path of the sliding pipe (202a), a cache tank (203b) arranged on one side of the housing (101) and connected to the cache outlet (203a), and a secondary air intake member (203c) arranged inside the cache tank (203b) and connected to the air inlet (104a); The sliding tube (202a) is sealed and fitted to the inner wall of the air intake pipe (201); The secondary air intake component (203c) comprises a collection tank (203c-1) arranged inside the cache tank (203b), a piston plate (203c-2) slidably connected to the inner wall of the collection tank (203c-1), an air vent (203c-3) arranged on one side of the cache tank (203b), and a hydraulic rod (203c-4) arranged on one side of the cache tank (203b) and adapted to the piston plate (203c-2); The air vent (203c-3) and the cache outlet (203a) are respectively located on different sides of the piston plate (203c-2); a connecting piece (203d) is provided between the cache tank (203b) and the air inlet (104a); and the connecting piece (203d) and the cache outlet (203a) are located on the same side of the piston plate (203c-2); The connecting piece (203d) comprises a connecting pipe (203d-1) connected between the buffer tank (203b) and the air inlet (104a), a conical groove (203d-2) arranged on the inner wall of the connecting pipe (203d-1) close to the buffer tank (203b), a blocking ball (203d-3) arranged inside the connecting pipe (203d-1) and adapted to the conical groove (203d-2), and a compression spring (203d-4) connected between the blocking ball (203d-3) and the inner wall of the connecting pipe (203d-1) close to the air inlet (104a); A gap is left between the blocking ball (203d-3) and the inner wall of the connecting tube (203d-1), and the blocking ball (203d-3) and the conical groove (203d-2) are abutted and sealed.

2. The static rosin removal device according to claim 1, characterized in that: It also includes a flow guide component (300) arranged inside the housing (101) and adapted to the electrostatic zone (104), wherein the flow guide component (300) includes a flow guide portion (301) arranged inside the electrostatic zone (104), and an adjustment portion (302) arranged inside the housing (101) and adapted to the flow guide portion (301); The air inlet (104a) is arranged on the bottom side of the electrostatic zone (104), and the air outlet (104b) is arranged on the top side of the electrostatic zone (104).

3. The static rosin removal device according to claim 2, characterized in that: The guide portion (301) comprises a collection bin (301a) arranged at the bottom of the housing (101) and adapted to the electrostatic zone (104), a mounting frame (301b) arranged on the inner side of the collection bin (301a) and having a gap with the inner wall of the housing (101), and a guide plate (301c) arranged on the top of the mounting frame (301b).

4. The static electricity rosin removal device according to claim 3, characterized in that: The regulating part (302) comprises a drainage chamber (302a) arranged inside the mounting frame (301b), a drainage fan (302b) rotatably connected inside the mounting frame (301b) and adapted to the inner wall of the drainage chamber (302a), a drainage outlet (302c) opened at the top of the drainage chamber (302a) and adapted to the guide plate (301c), and an regulating member (302d) arranged at the top of the mounting frame (301b) and adapted to the guide plate (301c); The air intake pipe (201) is connected to the drainage chamber (302a), and the connection position between the air intake pipe (201) and the drainage chamber (302a) is compatible with the drainage fan (302b).

5. The static rosin removal device according to claim 4, characterized in that: The guide plates (301c) are spiral-shaped and are arranged longitudinally in at least two groups, each group of the guide plates (301c) has the same shape and size, and a gap is provided between the guide plates (301c) and the side wall of the positive electrode (103); The adjusting member (302d) comprises an adjusting motor (302d-1) arranged inside the mounting frame (301b), an adjusting rod (302d-2) arranged at the output end of the adjusting motor (302d-1) and rotatably connected to the housing (101), and a guide rod (302d-3) arranged parallel to the adjusting rod (302d-2) on the inner side of the housing (101); The guide plates (301c) at the top layer are threadedly connected to the adjustment rods (302d-2), the guide plates (301c) at the bottom layer are fixedly connected to the top of the mounting frame (301b), each group of guide plates (301c) is slidably connected to the guide rods (302d-3), and connecting pieces (302e) are provided between adjacent groups of guide plates (301c).

6. The static electricity rosin removal device according to claim 5, characterized in that: The connecting member (302e) comprises a groove (302e-1) arranged on one side of the guide plate (301c), and a connecting rod (302e-2) rotatably connected to one side of the guide plate (301c) and adapted to the groove (302e-1); the connecting rods (302e-2) connected between adjacent groups of guide plates (301c) are rotatably connected to each other; the longitudinal distance between the head and tail ends of each group of guide plates (301c) is adapted to the length of the connecting rod (302e-2); and the head and tail ends of adjacent groups of guide plates (301c) match each other; The regulating member (302d) further comprises a slide groove (302d-4) arranged on the inner side of the drainage fan (302b) and aligned with the radial direction, a magnetic member (302d-5) slidably connected in the slide groove (302d-4), and a telescopic spring (302d-6) connected between the slide groove (302d-4) and the magnetic member (302d-5); and a magnetic induction member (302d-7) adapted to the magnetic member (302d-5) is arranged on one side of the regulating motor (302d-1).

Citation Information

Patent Citations

  • Automatic adjusting system for flue gas flow of dust remover

    CN116550471A

  • Cleaning device and cleaning equipment

    CN217613950U