Drying device for circuit board processing

Abstract

The utility model provides a drying device for circuit board processing, and belongs to the technical field of circuit board processing. Comprising a dirt collecting box, a lower base plate is fixed in an upper end opening of the dirt collecting box, two conveying belts are installed on the two sides of the upper end face of the lower base plate, a plurality of lower drying nozzles are fixed to the middle of the upper end face of the lower base plate, a drying box is erected in the middle of the upper end of the dirt collecting box, and an upper base plate is fixed to the middle in the drying box; the upper base plate is parallel to the lower base plate, limiting rods are fixed to the positions, corresponding to the two conveying belts, of the two sides of the lower end face of the upper base plate, and a plurality of upper drying nozzles are fixed to the middle of the lower end face of the upper base plate. According to the circuit board conveying device, the two sides of the circuit board can be dried at the same time in the circuit board conveying process, turning over is not needed, and the problem that the circuit board is damaged when turned over is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board processing technical field, especially a kind of drying device for circuit board processing. BACKGROUND

[0002] PCB circuit board drying is a key step in the process of circuit board manufacturing, the main purpose is to remove moisture on the circuit board and its components, to prevent problems such as poor soldering, corrosion or circuit board deformation in the subsequent welding and assembly process, and drying can also help to improve the welding quality, reduce the false welding and repair rate, so as to ensure the reliability and performance of final product.

[0003] At present, the Chinese patent with publication number CN210718535U discloses a drying device for PCB circuit board processing, which forms a certain height difference in the middle of the conveying belt by staggered arrangement of the first and second compression rollers, and uses the height difference to achieve the purpose of conveniently turning the circuit board, so that the two sides of the circuit board are heated uniformly to improve the drying effect.

[0004] However, this prior art needs to use the setting of height difference on the conveying belt to turn the circuit board to ensure the drying effect, which may cause damage to the circuit board when it falls and turns over, especially for thin plates and high-density circuit boards, which may be subjected to additional stress when turning, causing deformation or damage.

[0005] Therefore, the present application provides a drying device for circuit board processing to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a drying device for circuit board processing to solve the problem of circuit board damage caused by turning the circuit board in the existing circuit board drying device.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A drying device for circuit board processing, comprising a dirt collecting box, a lower base plate is fixed in the upper port of the dirt collecting box, two conveying belts are installed on the upper end face of the lower base plate, a plurality of lower drying nozzles are fixed on the upper end face of the lower base plate, a drying box is erected on the upper end of the dirt collecting box, an upper base plate is fixed in the middle of the drying box, the upper base plate is parallel to the lower base plate, a limiting rod is fixed on the lower end face of the upper base plate corresponding to the position of the two conveying belts, and a plurality of upper drying nozzles are fixed on the lower end face of the upper base plate.

[0009] Optionally, symmetrical grooves are formed at both ends of the lower base plate, a transmission wheel is rotatably installed in the groove, and the conveying belt is sleeved on the two transmission wheels.

[0010] Optionally, rotating shafts are fixed in the middle of the two transmission wheels at the same end of the lower base plate, and the end of one rotating shaft is connected with a motor.

[0011] Optionally, the motor is fixed outside the dirt collecting box.

[0012] Optionally, the lower base plate and the upper base plate are hollow inside and communicate with the lower drying nozzle and the limiting rod respectively, and the side surface of the lower base plate is further fixed with a connecting pipe which communicates with the inside of the upper base plate through a pipeline.

[0013] Optionally, the top of the drying box is provided with a hot air mechanism for filling hot air into the inside of the lower base plate and the upper base plate.

[0014] Optionally, the hot air mechanism comprises a heating box fixed to the top of the drying box, an electric heating rod is installed in the heating box, the lower end of the heating box is in plug-in communication with the middle part of the upper base plate, and a wind pump is plug-in fixed to the top end of the heating box.

[0015] Compared with the prior art, the present application has at least the following beneficial effects:

[0016] In the above scheme, thanks to the cooperation of the lower base plate, the conveying belt and the upper base plate, two conveying belts can be used to overlap the edges of the circuit board on both sides for conveying, and during the conveying process, the circuit board can be directly dried by hot air through the lower drying nozzle and the upper drying nozzle, avoiding damage to the circuit board when it is turned over during the conveying process, thus achieving better use effect.

[0017] In the above scheme, thanks to the setting of the limiting rod corresponding to the conveying belt, the edge of the circuit board can be limited up and down in cooperation with the conveying belt, so as to avoid the problem of position deviation of the circuit board caused by wind force during the hot air drying process, and ensure the stable conveying effect of the circuit board, which is beneficial to ensure the drying efficiency of the circuit board.

[0018] In summary, the present application can simultaneously dry the circuit board on both sides during the conveying process without turning over, avoiding the problem of damage to the circuit board when it is turned over. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the present application and to enable a skilled artisan to make and use the present application.

[0020] Figure 1 It is a structural schematic view of the drying device for circuit board processing.

[0021] Figure 2 Structure diagram of the pollution collecting box and the lower base plate of the drying device for circuit board processing;

[0022] Figure 3 Structure diagram of the internal structure of the drying box of the drying device for circuit board processing;

[0023] Figure 4 Structure diagram of the pollution collecting box of the drying device for circuit board processing; Figure 2 Enlarged diagram of structure A in the middle.

[0024] [Reference signs]

[0025] 1, pollution collecting box; 2, lower base plate; 201, lower drying nozzle; 202, connecting pipe; 3, transmission wheel; 301, rotating shaft; 302, motor; 4, conveying belt; 5, drying box; 6, upper base plate; 601, upper drying nozzle; 602, limiting rod; 7, heating box; 701, electric heating rod; 8, air pump.

[0026] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structure, device and environment. According to the specific needs, those skilled in the art can adjust or modify these devices and environment. DETAILED DESCRIPTION

[0027] The drying device for circuit board processing provided by the present application will be described in detail below in combination with the drawings and specific embodiments. It should be noted that in order to make the embodiments more detailed, the following embodiments are the best, preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement them; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0028] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiments can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of those skilled in the related art to realize this feature, structure or characteristic in combination with other embodiments (whether or not explicitly described).

[0029] Generally, terms can be understood to be contextually defined from usage. For example, the term "one or more" as used herein, depending at least in part upon the context, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures or characteristics in a plural sense. Further, the term "based on" can be understood as not necessarily being confined to a set of exclusive factors, but, alternatively, as allowing for existence of additional factors not explicitly described.

[0030] It is to be understood that the terms "on", "above", and "upper" in the present application should be interpreted in the broadest possible way consistent with the context. Consequently, "on" can mean not only "directly on" something but can also mean on something with intervening features or layers therebetween, and "above" or "upper" can mean not only "above" or "upper" something but can also mean "above" or "upper" something with no intervening features or layers therebetween.

[0031] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element's or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can similarly be interpreted accordingly.

[0032] As Figure 1 , Figure 2 With Figure 3 As shown in the utility model discloses an embodiment provides a kind of drying device for circuit board processing, including collecting dirt box 1, the lower base plate 2 is fixed in the upper end of the collecting dirt box 1, two conveying belts 4 are installed on the upper end surface both sides of the lower base plate 2, specifically, the both ends of the lower base plate 2 are symmetrically provided with recess, transmission wheel 3 is rotatably installed in recess, the conveying belt 4 is sleeved on two transmission wheels 3, and rotating shaft 301 is fixedly inserted in the middle of two transmission wheels 3 located in the same end of the lower base plate 2, and the end of one rotating shaft 301 is also connected with motor 302, and the motor 302 is fixed on the outside of the collecting dirt box 1, for driving two conveying belts 4 to convey circuit board.

[0033] And the upper end surface of the lower substrate 2 middle fixed with a plurality of lower drying nozzle 201, the upper end of the set of dirt box 1 middle set up drying box 5, the drying box 5 inside middle fixed with upper substrate 6, the upper substrate 6 with the lower substrate 2 parallel, the lower end surface of the upper substrate 6 both sides corresponding two drying nozzle 201 of the lower substrate 4 position fixed with limit rod 602, the lower end surface of the upper substrate 6 middle fixed with a plurality of upper drying nozzle 601.

[0034] Wherein, cooperate Figure 3 With Figure 4 As shown in the lower substrate 2 and the upper substrate 6 inside are hollow, and respectively with the lower drying nozzle 201, limit rod 602 communication, and the side of the lower substrate 2 is also fixed with connecting pipe 202, the connecting pipe 202 through the pipeline with the upper substrate 6 inside communication, and the top of the drying box 5 is provided with hot air mechanism for filling hot air into the lower substrate 2 and the upper substrate 6 inside. Therefore, the hot air mechanism can be filled with hot air into the lower substrate 2 and the upper substrate 6 inside cavity, and the lower drying nozzle 201, the upper drying nozzle 601 is uniformly sprayed to the upper and lower surfaces of the circuit board, forming uniform drying treatment.

[0035] In this embodiment, the hot air mechanism includes a heating box 7 fixed on the top of the drying box 5, the heating box 7 is provided with an electric heating rod 701, and the lower end of the heating box 7 is connected with the middle part of the upper substrate 6, and the top end of the heating box 7 is provided with a wind pump 8, so that the wind pump 8 can be heated by the electric heating rod 701 when blowing.

[0036] In addition, the bottom of the dirt collecting box 1 can be provided with a sewage discharge pipeline to facilitate the collection and discharge of dirt by the dirt collecting box 1.

[0037] The working principle of the drying device for circuit board processing is that two conveying belts 4 are used to overlap the edges of the circuit board on both sides to convey the circuit board, and when the circuit board enters the inside of the drying box 5, the limit rod 602 limits the upper edge of the circuit board.

[0038] At the same time, the wind pump 8 on the top of the drying box 5 and the heating box 7 cooperate to blow hot air into the upper substrate 6, and the connecting pipe 202 and the pipeline are connected, so that the lower substrate 2 is also blown into hot air. At this time, the circuit board is directly dried by the lower drying nozzle 201 and the upper drying nozzle 601, so as to avoid damage to the circuit board when it is turned over during conveying, and the use effect is better.

[0039] In summary, the device can simultaneously dry the circuit board on both sides during conveying, and does not need to be turned over, avoiding the problem of damage to the circuit board when it is turned over.

[0040] The utility model covers any alternative, modification, equivalent method and scheme which is made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following preferred embodiment of the utility model, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.

[0041] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements and refinements can also be made, and these improvements and refinements should also be regarded as the protection range of the utility model.

Claims

1. A drying device for processing a circuit board, comprising a dirt collecting box (1), characterized in that, The upper end of the dirt collecting box (1) is fixed with a lower base plate (2), two conveying belts (4) are installed on the upper end surface of the lower base plate (2), a plurality of lower drying nozzles (201) are fixed on the upper end surface of the lower base plate (2), a drying box (5) is arranged on the upper end of the dirt collecting box (1), an upper base plate (6) is fixed in the middle of the drying box (5), the upper base plate (6) is parallel to the lower base plate (2), a limiting rod (602) is fixed on the lower end surface of the upper base plate (6) corresponding to the position of the two conveying belts (4), and a plurality of upper drying nozzles (601) are fixed on the lower end surface of the upper base plate (6).

2. The drying apparatus for processing a circuit board according to Claim 1, wherein Both ends of the lower base plate (2) are provided with symmetrical grooves, and transmission wheels (3) are rotatably installed in the grooves.

3. The drying apparatus for processing a circuit board according to Claim 2, wherein The middle parts of the two transmission wheels (3) located at the same end of the lower base plate (2) are fixed with a rotating shaft (301), and the end of one rotating shaft (301) is connected with a motor (302).

4. The drying apparatus for processing a circuit board according to Claim 3, wherein The motor (302) is fixed on the outside of the dirt collecting box (1).

5. The drying apparatus for processing a circuit board according to Claim 1, wherein The lower base plate (2) and the upper base plate (6) are hollow inside and are in communication with the lower drying nozzles (201) and the limiting rods (602) respectively, and the side surface of the lower base plate (2) is further fixed with a connecting pipe (202), which is in communication with the inside of the upper base plate (6) through a pipeline.

6. The drying apparatus for processing a circuit board according to claim 5, wherein The top of the drying box (5) is provided with a hot air mechanism for filling hot air into the inside of the lower base plate (2) and the upper base plate (6).

7. The drying apparatus for processing a circuit board according to claim 6, wherein The hot air mechanism comprises a heating box (7) fixed on the top of the drying box (5), an electric heating rod (701) is installed in the heating box (7), the lower end of the heating box (7) is in plug-in communication with the middle part of the upper base plate (6), and a wind pump (8) is plug-in fixed on the top end of the heating box (7).

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