Circuit board constant temperature oven

Abstract

The utility model discloses a circuit board constant-temperature oven, and belongs to the technical field of circuit board production instruments. The circuit board constant-temperature oven further comprises a pair of electric cylinders fixedly arranged on the upper end face of the shell. A ventilation pipe is fixedly arranged between the pair of electric cylinders on the upper end surface of the shell; the ventilation pipe corresponds to the air outlet; a plurality of rows of ventilation holes are fixedly formed in the surface of the ventilation pipe; the output ends of the pair of electric cylinders are fixedly connected with a clamping plate. The lower end of the clamping plate is fixedly connected with a pipeline plug; the pipeline plug is in sliding connection with the ventilation pipe; by arranging the ventilation pipe, the ventilation holes and the pipeline plug, the output end of the electric cylinder is used for driving the clamping plate to be lifted, the clamping plate is fixedly connected with the pipeline plug, the leakage number of the ventilation holes is controlled, and the temperature is adjusted to be a constant temperature value.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board production equipment, and more specifically relates to a circuit board constant temperature oven. Background Art

[0002] Printed circuit boards, also known as printed circuit boards, provide electrical connections for electronic components. With a history of over 100 years, their design primarily relies on layout design. The primary advantage of using printed circuit boards is that they significantly reduce wiring and assembly errors, improving automation and productivity. During the production process, printed circuit boards require water washing and dust removal, followed by drying. However, the varying applications and sizes of printed circuit boards make securing them difficult, and existing industrial ovens lack the flexibility to adjust the clamping mechanism. Therefore, we have developed an environmentally friendly industrial oven for printed circuit board processing.

[0003] For example, an environmentally friendly industrial oven for printed circuit board processing disclosed in patent application number CN201920349247.2 includes a box body, a baking chamber is provided in the box body, a placing rack is slidably installed in the baking chamber, a moving rod is slidably connected to the placing rack, one side of the moving rod is connected to the inner wall of the placing rack by a spring, a fixed rod is provided parallel to one side of the moving rod, and both ends of the fixed rod are connected to a telescopic rod, the bottom end of the telescopic rod is connected to the placing rack, and a spring is also connected between the moving rod and the fixed rod. The utility model provides a moving rod on the placing rack, and connects the moving rod to the placing rack and the fixed rod by a spring, and clamps the circuit board by utilizing the retraction force generated by the stretching of the spring. This method is convenient for adapting according to the size of the circuit board, and uses an exhaust fan to suck the heated gas in the baking chamber into the electric heater, thereby reducing the heating time and energy consumption and improving environmental protection performance.

[0004] Although the above-mentioned environmentally friendly industrial oven for printed circuit board processing can reduce heating time and heat energy consumption, the control of air output is inaccurate and can only maintain a constant temperature by stopping heating or reducing heating power. After exceeding the constant temperature, the adjustment ability is poor and the drying efficiency is low. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a circuit board constant temperature oven, which controls the leakage amount of ventilation holes, adjusts the temperature to a constant value, and improves the drying efficiency.

[0006] The utility model relates to a circuit board constant temperature oven, comprising a shell; a heating box is fixedly arranged on the left side of the shell; the shell is rotatably connected to the flip door; a hot air blower is fixedly arranged on the outer side of the shell; an output end of the hot air blower is communicated with the heating box; thermal insulation cotton is embedded in the inner side of the shell; a heating box is embedded in the inner side of the thermal insulation cotton; four vent holes are arranged at equal intervals at the inner side of the heating box corresponding to the heating box; the vent holes communicate with the heating box and the inner side of the heating box; four pairs of slide grooves are fixedly arranged on the inside of the heating box; a mesh plate is slidably connected between each pair of slide grooves; an air outlet is opened on the upper side of the heating box; it also includes a pair of electric cylinders fixedly arranged on the upper end surface of the shell; a ventilation pipe is fixedly arranged between the upper end surface of the shell and the pair of electric cylinders; the ventilation pipe corresponds to the air outlet; a plurality of rows of ventilation holes are fixedly arranged on the surface of the ventilation pipe; a pair of output ends of the electric cylinder are fixedly connected to the clamping plates; the lower end of the clamping plates is fixedly connected to the pipe plug; the pipe plug is slidably connected to the ventilation pipe.

[0007] Preferably, a temperature sensor is fixedly arranged on the lower side of the housing; and a humidity sensor is fixedly arranged at the lower end of the housing corresponding to the temperature sensor.

[0008] Preferably, a control panel is fixedly arranged on the outer side of the flip door.

[0009] Preferably, a buffer pad is fixedly arranged on the inner side of the flip door; and a heat-insulating cotton sheet is fixedly arranged between the buffer pads.

[0010] Preferably, the mesh plate is made of stainless steel mesh plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] (1) By setting up ventilation pipes, ventilation holes, and pipe plugs, the output end of the electric cylinder is used to drive the card plate to lift, and the card plate is fixedly connected to the pipe plug to control the amount of leakage from the ventilation holes and adjust the temperature to a constant value; hot air is used in conjunction with a heating box, and a baking lamp is set in the heating box to use the flow of hot air to maintain a constant and uniform temperature;

[0013] (2) By setting up a heating box, the hot air can be diffused more evenly, and the mesh plate is set to a stainless steel mesh plate to improve the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the flip door structure of the present utility model.

[0017] Explanation of the numbers in the figure: 10. Shell; 11. Flip door; 12. Cushion; 13. Insulation cotton sheet; 14. Hot air blower; 15. Heating box; 16. Ventilation hole 1; 17. Electric cylinder; 18. Card; 19. Pipe plug; 20. Ventilation pipe; 21. Ventilation hole; 22. Slide; 23. Mesh plate; 24. Insulation cotton; 25. Heating box; 26. Temperature sensor; 27. Humidity sensor; 28. Air outlet; 29. Control panel. DETAILED DESCRIPTION

[0018] Specific embodiment 1: Please refer to Figure 1-3 A circuit board constant temperature oven comprises a shell 10; a heating box 15 is fixedly arranged on the left side of the shell 10; the shell 10 is rotatably connected to the flip door 11; a hot air blower 14 is fixedly arranged on the outside of the shell 10; the output end of the hot air blower 14 is connected to the heating box 15; a heat preservation cotton 24 is embedded in the inner side of the shell 10; a heating box 25 is embedded in the inner side of the heat preservation cotton 24; four vent holes 16 are arranged at equal intervals on the inner side of the heating box 25 corresponding to the heating box 15; the vent holes 16 communicate with the heating box 15 and the inner side of the heating box 25; four pairs of slide grooves 22 are fixedly arranged on the inner side of the heating box 25; a mesh plate 23 is slidably connected between each pair of the slide grooves 22; an outlet is provided on the upper side of the heating box 25 Air port 28; also includes a pair of electric cylinders 17 fixedly arranged on the upper end surface of the shell 10; a ventilation pipe 20 is fixedly arranged on the upper end surface of the shell 10 between the pair of electric cylinders 17; the ventilation pipe 20 corresponds to the air outlet 28; a plurality of rows of ventilation holes 21 are fixedly arranged on the surface of the ventilation pipe 20; the output ends of the pair of electric cylinders 17 are fixedly connected to the card plate 18; the lower end of the card plate 18 is fixedly connected to the pipe plug 19; the pipe plug 19 is slidably connected to the ventilation pipe 20; by setting the ventilation pipe 20, the ventilation hole 21, and the pipe plug 19, the output end of the electric cylinder 17 is used to drive the card plate 18 to rise, the card plate 18 is fixedly connected to the pipe plug 19, the leakage amount of the ventilation hole 21 is controlled, and the temperature is adjusted to a constant temperature value.

[0019] See also Figure 2 A temperature sensor 26 is fixedly provided on the lower side of the shell 10; a humidity sensor 27 is fixedly provided at the lower end of the shell 10 corresponding to the temperature sensor 26; a baking lamp (not shown in the figure) is provided at the upper end of the inner side of the heating box 25. This is a common existing technical means in ovens and will not be elaborated here.

[0020] See also Figure 3 A control panel 29 is fixedly arranged on the outer side of the flip door 11.

[0021] See also Figure 2 A buffer pad 12 is fixedly arranged on the inner side of the flip door 11; and a heat-insulating cotton sheet 13 is fixedly arranged between the buffer pads 12.

[0022] See also Figure 1-2 , the mesh plate 23 is made of a stainless steel mesh plate; by providing a heating box 15, the heat is diffused more evenly, and the mesh plate 23 is provided as a stainless steel mesh plate to improve the drying efficiency.

[0023] During operation, the circuit board is placed on the mesh plate 23, and then the control panel 29 is operated to start the hot air blower 14 to deliver hot air to the inside of the heating box 15. Then, the hot dry air is delivered to the inside of the heating box 25 through the vent hole 16. At the same time, the heating lamp provided at the upper end of the inner side of the heating box 25 is turned on (this is prior art and not shown in the figure), and the flip door 11 is closed. The control panel 29 is operated to start the output end of the electric cylinder 17 to lift, and the output end of the electric cylinder 17 drives the card plate 18 to lift. When the card plate 18 is lifted, the pipe plug 19 is lifted, and a small amount of air leaks out of the ventilation holes 21 on the ventilation pipe 20, thereby maintaining the air pressure balance inside the housing 10. The hot dry air delivered by the hot air blower 14 continuously dries the circuit board on the mesh plate 23.

[0024] When the temperature sensor 26 and the humidity sensor 27 detect that the temperature and humidity values inside the heating box 25 are abnormal and need to be adjusted, operate the control panel 29 again, start the electric cylinder 17 to lift the pipe plug 19, so that the ventilation holes 21 leaking from the ventilation pipe 20 increase, the hot air diffusion rate increases, and at the same time reduce the output power of the hot air blower 14, so that the temperature and humidity inside the heating box 25 are at normal values; after drying is completed, turn off the hot air blower 14, lift the electric cylinder 17, then open the flip door 11, and take out the circuit board.

[0025] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0026] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0027] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A circuit board constant temperature oven, comprising a shell (10); a heating box (15) is fixedly arranged on the left side of the shell (10); the shell (10) is rotatably connected to a flip door (11); a hot air blower (14) is fixedly arranged on the outside of the shell (10); the output end of the hot air blower (14) is connected to the heating box (15); a heat preservation cotton (24) is embedded on the inside of the shell (10); a heating box (25) is embedded on the inside of the heat preservation cotton (24); four vent holes (16) are arranged on the inside of the heating box (25) at equal intervals corresponding to the heating box (15); the vent holes (16) are connected to the heating box (15) and the inside of the heating box (25); four pairs of slide grooves (22) are fixedly arranged on the inside of the heating box (25); a mesh plate (23) is slidably connected between each pair of the slide grooves (22); an air outlet (28) is provided on the upper side of the heating box (25); the characteristic is that The invention also includes a pair of electric cylinders (17) fixedly arranged on the upper end surface of the housing (10); a ventilation pipe (20) is fixedly arranged on the upper end surface of the housing (10) between the pair of electric cylinders (17); the ventilation pipe (20) corresponds to the air outlet (28); a plurality of rows of ventilation holes (21) are fixedly arranged on the surface of the ventilation pipe (20); the output ends of the pair of electric cylinders (17) are fixedly connected to a card plate (18); the lower end of the card plate (18) is fixedly connected to a pipe plug (19); and the pipe plug (19) is slidably connected to the ventilation pipe (20).

2. A circuit board constant temperature oven according to claim 1, characterized in that: A temperature sensor (26) is fixedly provided on the lower side of the housing (10); and a humidity sensor (27) is fixedly provided at the lower end of the housing (10) corresponding to the temperature sensor (26).

3. The circuit board constant temperature oven according to claim 1, characterized in that: A control panel (29) is fixedly provided on the outer side surface of the flip door (11).

4. The circuit board constant temperature oven according to claim 1, characterized in that: A buffer pad (12) is fixedly arranged on the inner side of the flip door (11); and a heat-insulating cotton sheet (13) is fixedly arranged between the buffer pads (12).

5. The circuit board constant temperature oven according to claim 1, characterized in that: The mesh plate (23) is made of a stainless steel mesh plate.

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