Cleaning device for reflow soldering furnace

Abstract

The utility model relates to the technical field of reflow soldering furnaces, and discloses a reflow soldering furnace cleaning device which comprises a reflow soldering furnace body, the top of the reflow soldering furnace body is fixedly connected with a gas collecting box, the front face of the reflow soldering furnace body is fixedly connected with a filtering box, and the inner surface of the reflow soldering furnace body is provided with a conveying belt. A first scraping block is movably connected to one side of the conveying belt, a second scraping block is movably connected to one side of the first scraping block, a fixing plate is fixedly connected to supporting legs at the bottom of the conveying belt, a transmission shaft is movably connected to the inner surface of the fixing plate, and a connecting plate is fixedly connected to the front face of the fixing plate. A motor is fixedly connected to the other side of the connecting plate, a second scraping block is made to move left and right on the conveying belt, the surface of the conveying belt can be covered more comprehensively through left-right movement of the second scraping block, various impurities and residues are effectively removed, and the cleaning efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to reflow soldering furnace technical field more particularly to a kind of for reflow soldering furnace cleaning device. BACKGROUND

[0002] Reflow soldering furnace is a kind of equipment widely used in electronic manufacturing industry, mainly used in the welding process on SMT production line, it is fused by heating the solder in tin paste, so that surface mount components are firmly fixed on printed circuit board (PCB), the whole welding process is automated, can accurately control temperature curve, ensure the quality and reliability of solder joint.Reflow soldering furnace usually includes preheating zone, holding zone, melting zone and cooling zone four parts, each area has specific temperature setting, to meet the welding needs of different materials and components.

[0003] The deficiencies of existing reflow soldering furnace are as follows:

[0004] Firstly, the working principle of reflow soldering furnace is to use hot air circulation heating and cooling to weld electronic components on printed circuit board, however, in the welding process, rosin flux and other substances in solder paste will be left on the conveyor belt, and the residues will be carbonized under the action of high temperature after long-term accumulation on the conveyor belt, forming stubborn dirt, which is difficult to remove.

[0005] Secondly, the welding material in the production process of reflow soldering furnace is melted at high temperature, which produces smoke and metal particles, and if these smoke and metal particles are inhaled by the operator, they will penetrate into the lungs and deposit in the alveoli, which is easy to cause respiratory diseases, so how to further improve the safety of working environment is a problem to be solved in the industry. SUMMARY

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a reflow soldering furnace cleaning device to solve the problems existing in the above background art.

[0007] The utility model provides the following technical scheme: a kind of for reflow soldering furnace cleaning device, including reflow soldering furnace body, the top of the reflow soldering furnace body is fixedly connected with gas collection tank, the front of the reflow soldering furnace body is fixedly connected with filter box, the inner surface of the reflow soldering furnace body is equipped with transmission belt, the side of the transmission belt is movably connected with first scraper, the side of the first scraper is movably connected with second scraper, the foot of the transmission belt bottom is fixedly connected with fixed plate, the inner surface of the fixed plate is movably connected with transmission shaft, the front of the fixed plate is fixedly connected with connecting plate, the other side of the connecting plate is fixedly connected with motor;

[0008] Further, the bottom of the gas collecting box is fixedly connected with a ventilation net, the front of the gas collecting box is fixedly connected with a transmission pipe, the bottom of the transmission pipe is fixedly connected with a gas collecting pump, the front of the gas collecting pump is fixedly connected with a transmission port, the front of the transmission port is fixedly connected with a filter box, the other side of the filter box is movably connected with a replacement port, the front of the filter box is fixedly connected with an exhaust port, the inner surface of the filter box is movably connected with an activated carbon plate, and the activated carbon plate has a porous structure and a large specific surface area, can efficiently adsorb the harmful gases, thereby purifying the air, reducing the harm to the environment and the human body.

[0009] Further, the top of the transmission shaft is fixedly connected with a strip-shaped block, the outer surface of the strip-shaped block is movably connected with a mounting block, the bottom of the mounting block is provided with a slot, the bottom of the slot is movably connected with a mounting block, the inner surface of the mounting block and the strip-shaped block is movably connected with a fixing bolt, and the top of the mounting block is fixedly connected with a first scraping block.

[0010] Further, the front of the fixing plate is movably connected with a movable plate, the front of the movable plate is fixedly connected with a connecting block, the other side of the connecting block is fixedly connected with an adjusting block, the middle of the adjusting block is provided with a limiting groove, and the inner surface of the limiting groove is movably connected with a round rod.

[0011] Further, the other side of the motor is fixedly connected with a disc, one end of the front of the disc is movably connected with a driving rod, one end of the driving rod is movably connected with a concave block, one end of the concave block is fixedly connected with a contraction piece, the top of the contraction piece is fixedly connected with a supporting rod, one end of the supporting rod is fixedly connected with a mounting shaft, the inner surface of the mounting shaft is fixedly connected with a second scraping block.

[0012] Further, the length of the first scraping block is same with the length of the transmission belt.

[0013] Further, the bottom of the round rod is fixedly connected with a connecting piece, the top of the adjusting block is movably connected with a round block, the inner surface of the round block is movably connected with a round rod, and the top of the outer surface of the round rod is movably connected with a spring.

[0014] Further, the activated carbon plate has three pieces.

[0015] The technical effects and advantages of the utility model are as follows:

[0016] 1. The utility model discloses when the reflow soldering furnace body produces a large amount of waste gas in use, starts the gas collecting pump transmission pipe and starts to inhale, and the waste gas produced in the reflow soldering furnace body is transmitted to the filter box from the hole in the ventilation net, and the filter box is equipped with activated carbon plate, and the activated carbon plate has porous structure and larger specific surface area, can efficiently adsorb these harmful gases, thereby purifying air, reducing the harm to the environment and human body, through the setting of the replacement mouth, the activated carbon plate can be conveniently mounted and dismounted, the operation convenience is improved, through the treatment of the smoke dust and metal particles, the risk that the operator is exposed to harmful substances can be significantly reduced, thereby reducing the occurrence of pneumoconiosis, respiratory diseases and other occupational diseases.

[0017] 2. When the impurities on the surface of the conveying belt need to be scraped off, the first scraper block is fixed at the supporting leg at the bottom of the conveying belt, and the impurities on the surface of the conveying belt can be scraped off through the movement of the conveying belt and the fixed position of the first scraper block. When encountering hard impurities, the transmission shaft moves outward, at which time the connecting block connected with the transmission shaft also starts to move outward. When the connecting block moves outward, the adjusting block starts to move to one side. The round block at the top of the limiting groove moves upward and makes the spring contract after being impacted by the adjusting block. In this way, the first scraper block is stable while releasing hard impurities. After the hard impurities are released, the spring rebounds to make the first scraper block tightly adhere to the conveying belt. In this way, when encountering hard impurities, the transmission shaft moves outward. Through the synergistic effect of the connecting block, the adjusting block and the spring, space is temporarily released, so that the hard impurities can be released, and damage to the first scraper block and the conveying belt is avoided.

[0018] 3. In order to ensure the cleaning quality of the conveying belt, the connecting plate is installed on the front surface of the fixed plate, and the contraction piece is installed on the front surface of the transmission shaft. In this way, the movement track of the second scraper block can be matched with that of the first scraper block during use. At this time, the motor is started to make the disc move. When the disc starts to rotate, the driving rod starts to move left and right. At this time, the contraction piece starts to shrink regularly in cooperation with the rotation of the disc. At this time, the supporting rod installed on the contraction piece drives the installation shaft to move left and right. The outer surface of the installation shaft is fixedly connected with the second scraper block. In this way, the second scraper block can move left and right on the conveying belt. Through the left and right movement of the second scraper block, the surface of the conveying belt can be more comprehensively covered, various impurities and residues can be effectively removed, and the cleaning efficiency and quality are improved. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic view of the utility model.

[0020] Figure 2 It is the filter box structure schematic view of the utility model.

[0021] Figure 3 It is the filter box cross section structure schematic view of the utility model.

[0022] Figure 4 It is the schematic view of the transmission shaft structure of the utility model.

[0023] Figure 5 It is the schematic view of the adjusting block structure of the utility model.

[0024] Figure 6 It is the schematic view of the second scraping block structure of the utility model.

[0025] The figure mark is: 1, reflow soldering furnace body;101, gas collecting box;102, air vent net;103, transmission pipe;104, gas collecting pump;1041, transmission port;105, filter box;1051, exhaust port;106, replacement port;107, activated carbon plate;108, transmission belt;2, transmission shaft;201, strip-shaped block;202, fixed peg;203, mounting block;204, slot;205, first scraping block;3, fixed plate;301, movable plate;302, connecting block;303, adjusting block;304, limiting slot;305, round rod;3051, round block;3052, spring;306, connecting piece;4, connecting plate;401, motor;402, disc;403, drive rod;404, concave block;405, contraction piece;406, supporting rod;407, mounting shaft;408, second scraping block. DETAILED DESCRIPTION

[0026] The technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model, and in addition, the form of each structure recorded in the following implementation is only an example, and the reflow soldering furnace cleaning device involved in the utility model is not limited to each structure recorded in the following implementation, and all other implementation obtained by the ordinary skilled in the art without making creative labor belongs to the protection scope of the utility model.

[0027] Referring to Figures 1-6 The utility model provides a kind of for reflow soldering furnace cleaning device, including reflow soldering furnace body 1, the top of reflow soldering furnace body 1 is fixedly connected with gas collecting box 101, the front of reflow soldering furnace body 1 is fixedly connected with filter box 105, the inner surface of reflow soldering furnace body 1 is equipped with transmission belt 108, the side of transmission belt 108 is movably connected with first scraping block 205, first scraping block 205, the side of first scraping block 205 is movably connected with second scraping block 408, the supporting leg of transmission belt 108 bottom is fixedly connected with fixed plate 3, the inner surface of fixed plate 3 is movably connected with transmission shaft 2, the front of fixed plate 3 is fixedly connected with connecting plate 4, the other side of connecting plate 4 is fixedly connected with motor 401.

[0028] In an preferred embodiment, the bottom of the gas collecting box 101 is fixedly connected with the ventilation net 102, the front of the gas collecting box 101 is fixedly connected with the transmission pipe 103, the bottom of the transmission pipe 103 is fixedly connected with the gas collecting pump 104, the front of the gas collecting pump 104 is fixedly connected with the transmission port 1041, the front of the transmission port 1041 is fixedly connected with the filter box 105, the other side of the filter box 105 is movably connected with the replacement port 106, the active carbon plate 107 can be conveniently assembled and disassembled through the setting of the replacement port 106, and the operation convenience is improved, the front of the filter box 105 is fixedly connected with the exhaust port 1051, and the inner surface of the filter box 105 is movably connected with the active carbon plate 107.

[0029] In an preferred embodiment, the top of the transmission shaft 2 is fixedly connected with the strip-shaped block 201, the outer surface of the strip-shaped block 201 is movably connected with the mounting block 203, the bottom of the mounting block 203 is provided with the insertion slot 204, the bottom of the insertion slot 204 is movably connected with the mounting block 203, the inner surface of the mounting block 203 and the strip-shaped block 201 is movably connected with the fixing bolt 202, and the top of the mounting block 203 is fixedly connected with the first scraping block 205.

[0030] In an preferred embodiment, the front of the fixed plate 3 is movably connected with the movable plate 301, the front of the movable plate 301 is fixedly connected with the connecting block 302, the other side of the connecting block 302 is fixedly connected with the adjusting block 303, the middle of the adjusting block 303 is provided with the limiting slot 304, and the inner surface of the limiting slot 304 is movably connected with the round rod 305.

[0031] In an preferred embodiment, the other side of the motor 401 is fixedly connected with the disc 402, one end of the front of the disc 402 is movably connected with the driving rod 403, one end of the driving rod 403 is movably connected with the concave block 404, one end of the concave block 404 is fixedly connected with the contraction piece 405, the top of the contraction piece 405 is fixedly connected with the supporting rod 406, one end of the supporting rod 406 is fixedly connected with the mounting shaft 407, the inner surface of the mounting shaft 407 is fixedly connected with the second scraping block 408, the surface of the transmission belt 108 can be more comprehensively covered through the left-right movement of the second scraping block 408, various impurities and residues can be effectively removed, and the cleaning efficiency and quality are improved.

[0032] In an preferred embodiment, the length of the first scraping block 205 is same with the length of the transmission belt 108.

[0033] In an preferred embodiment, the bottom of the round rod 305 is fixedly connected with the connecting piece 306, the top of the adjusting block 303 is movably connected with the round block 3051, the inner surface of the round block 3051 is movably connected with the round rod 305, and the top of the outer surface of the round rod 305 is movably connected with the spring 3052.

[0034] In a preferred embodiment, the activated carbon plate 107 has three pieces in common.

[0035] The working principle of the utility model is: when the reflow soldering furnace body 1 is used, a large amount of waste gas is generated, the gas collecting pump 104 transmission pipe 103 starts to inhale, the waste gas generated in the reflow soldering furnace body 1 is transmitted to the filter box 105 from the hole in the ventilation net 102, the filter box 105 is provided with activated carbon plate 107, the activated carbon plate 107 has porous structure and large specific surface area, can efficiently adsorb harmful gas, thereby purifying air, reducing the harm to environment and human body, through the setting of the replacement opening 106, the activated carbon plate 107 can be conveniently assembled and disassembled, the operation convenience is improved, through the treatment of smoke and metal particles, the risk of workers exposed to harmful substances can be significantly reduced, thereby reducing the occurrence of pneumoconiosis, respiratory diseases and other occupational diseases; when the impurities on the surface of the transmission belt 108 need to be scraped, the first scraper 205 is fixed at the supporting leg at the bottom of the transmission belt 108, through the movement of the transmission belt 108 and the position fixing of the first scraper 205, the impurities on the surface of the transmission belt 108 can be scraped, when hard impurities are encountered, the transmission shaft 2 moves outward, at this time, the connecting block 302 connected with the transmission shaft 2 also starts to move outward, when the connecting block 302 moves outward, the adjusting block 303 starts to move to one side, and the round block 3051 at the top of the limiting groove 304 is impacted by the adjusting block 303 and moves upward and makes the spring 3052 contract, so that the hard impurities are released while ensuring the stability of the first scraper 205, after the hard impurities are released, the spring 3052 rebounds and makes the first scraper 205 tightly adhere to the transmission belt 108; in order to ensure the cleaning quality of the transmission belt 108, the connecting plate 4 is installed on the front face of the fixed plate 3 and the contraction member 405 is installed on the front face of the transmission shaft 2, so that the second scraper 408 can cooperate with the movement track of the first scraper 205 when in use, at this time, the motor 401 is started to make the disc 402 move, when the disc 402 starts to rotate, the driving rod 403 starts to move left and right, at this time, the contraction member 405 starts to cooperate with the rotation of the disc 402 and regularly contracts, at this time, the supporting rod 406 installed on the contraction member 405 drives the installation shaft 407 to move left and right, and the second scraper 408 is fixedly connected to the outer surface of the installation shaft 407, so that the second scraper 408 can move left and right on the transmission belt 108, through the left and right movement of the second scraper 408, the surface of the transmission belt 108 can be more comprehensively covered, various impurities and residues can be effectively removed, and the cleaning efficiency and quality are improved.

[0036] Finally should be explained a few points are: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0037] Second: the present application discloses the embodiment in the drawing, only relates to the structure involved in the present application, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0038] Finally: the above only for the preferred embodiment of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A cleaning device for a reflow oven, comprising a reflow oven body (1), characterized in that: A gas collection box (101) is fixedly connected to the top of the reflow oven body (1), a filter box (105) is fixedly connected to the front of the reflow oven body (1), a conveyor belt (108) is provided on the inner surface of the reflow oven body (1), a first scraper (205) is movably connected to one side of the conveyor belt (108), a second scraper (408) is movably connected to one side of the first scraper (205), a fixed plate (3) is fixedly connected to the support leg at the bottom of the conveyor belt (108), a drive shaft (2) is movably connected to the inner surface of the fixed plate (3), a connecting plate (4) is fixedly connected to the front of the fixed plate (3), and a motor (401) is fixedly connected to the other side of the connecting plate (4). A disc (402) is fixedly connected to the other side of the motor (401). A drive rod (403) is movably connected to one end of the front of the disc (402). A concave block (404) is movably connected to one end of the drive rod (403). A shrinking member (405) is fixedly connected to one end of the concave block (404). A support rod (406) is fixedly connected to the top of the shrinking member (405). A mounting shaft (407) is fixedly connected to one end of the support rod (406). A second scraper (408) is fixedly connected to the inner surface of the mounting shaft (407).

2. The cleaning device for a reflow oven according to claim 1, characterized in that: A ventilation net (102) is fixedly connected to the bottom of the gas collection box (101). A transmission pipe (103) is fixedly connected to the front of the gas collection box (101). A gas collection pump (104) is fixedly connected to the bottom of the transmission pipe (103). A transmission port (1041) is fixedly connected to the front of the gas collection pump (104). A filter box (105) is fixedly connected to the front of the transmission port (1041). A replacement port (106) is movably connected to the other side of the filter box (105). An exhaust port (1051) is fixedly connected to the front of the filter box (105). An activated carbon plate (107) is movably connected to the inner surface of the filter box (105).

3. The cleaning device for a reflow oven according to claim 1, characterized in that: A strip block (201) is fixedly connected to the top of the drive shaft (2), and an mounting block (203) is movably connected to the outer surface of the strip block (201). A slot (204) is provided at the bottom of the mounting block (203), and the mounting block (203) is movably connected to the bottom of the slot (204). A fixing bolt (202) is movably connected to the inner surface of the mounting block (203) and the strip block (201). A first scraper (205) is fixedly connected to the top of the mounting block (203).

4. A cleaning device for a reflow oven according to claim 1, characterized in that: The front of the fixed plate (3) is movably connected to a movable plate (301), the front of the movable plate (301) is fixedly connected to a connecting block (302), the other side of the connecting block (302) is fixedly connected to an adjusting block (303), a limiting groove (304) is opened in the middle of the adjusting block (303), and a round rod (305) is movably connected to the inner surface of the limiting groove (304).

5. A cleaning device for a reflow oven according to claim 1, characterized in that: The length of the first scraper (205) is the same as the length of the conveyor belt (108).

6. A cleaning device for a reflow oven according to claim 4, characterized in that: The bottom of the round rod (305) is fixedly connected to a connector (306), the top of the adjusting block (303) is movably connected to a round block (3051), the inner surface of the round block (3051) is movably connected to the round rod (305), and the top of the outer surface of the round rod (305) is movably connected to a spring (3052).

7. A cleaning device for a reflow oven according to claim 2, characterized in that: There are three activated carbon plates (107).

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