Induction positioning mechanism for low-pressure spraying machine oven and spraying machine oven

Abstract

The utility model provides an induction positioning mechanism for a low-pressure spraying machine oven and the spraying machine oven, and belongs to the technical field of PCB manufacturing equipment, the positioning mechanism comprises a mounting plate, and the mounting plate is fixedly connected with the side wall of the oven; a positioning piece is arranged on the mounting plate, the positioning piece comprises a connecting part, an induction guide rod and an induction section, the connecting part is hinged to the mounting plate, the induction guide rod and the induction section are arranged on the two sides of the connecting part respectively, an induction head is further arranged on the mounting plate, and the induction head corresponds to the induction section. The positioning mechanism senses whether the circuit board is conveyed in place or not through the induction guide rod, the contact area between the positioning mechanism and the circuit board in the positioning process can be reduced, damage to printing ink of the circuit board is reduced, and therefore the production quality of the circuit board can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board manufacturing, in particular to an induction positioning mechanism for a low-pressure spraying machine oven and a spraying machine oven. Background Art

[0002] Spraying machine is a kind of surface treatment equipment widely used in automobile, furniture, electronics and other industries. It sprays the paint evenly on the surface of the workpiece to achieve the purpose of protection, decoration and improving product performance. During the spraying process, the paint needs to go through heating, atomization and other steps to form a mist suitable for spraying. Existing spraying machines usually use high-temperature ovens to heat the paint so that the paint solidifies. Low-pressure spraying ovens are also needed in the production process of circuit boards. Its main function is to bake the circuit boards that have undergone a series of processes such as pre-treatment, lamination, exposure, and development, so that the ink on the circuit boards is solidified, thereby completing the production of the circuit boards.

[0003] An induction positioning mechanism is set at the entrance of the oven to determine whether the circuit board has reached the predetermined position. When the induction positioning mechanism determines that the circuit board has completely entered the oven, the clamping parts in the oven will clamp the circuit board so that the circuit board can be turned over for baking. The existing induction positioning mechanism determines whether the circuit board is in place by the contact between the induction sheet and the circuit board. However, when the induction sheet contacts the circuit board, the contact area between the induction sheet and the circuit board is large, which easily scratches the ink on the circuit board, causing damage to the ink, which is not conducive to the production of the circuit board.

[0004] Therefore, it is necessary to improve the induction positioning mechanism of the existing sprayer oven to overcome the defects of the prior art. Utility Model Content

[0005] In order to overcome the problems existing in the related art, one of the purposes of the utility model is to provide an induction positioning mechanism for a low-pressure spray machine oven. The positioning mechanism uses an induction guide rod to sense whether the circuit board is delivered in place, which can reduce the contact area with the circuit board during the positioning process and reduce damage to the ink on the circuit board, thereby helping to ensure the production quality of the circuit board.

[0006] An induction positioning mechanism for a low-pressure spray machine oven comprises a mounting plate, which is fixedly connected to a side wall of the oven; a positioning piece is arranged on the mounting plate, and the positioning piece comprises a connecting portion, an induction guide rod and an induction segment, the connecting portion is hinged to the mounting plate, the induction guide rod and the induction segment are respectively arranged on both sides of the connecting portion, and an induction head is also arranged on the mounting plate, and the induction head corresponds to the induction segment.

[0007] In a preferred technical solution of the utility model, a connecting tube is provided on the connecting portion, and the sensing guide rod is detachably connected to the connecting tube.

[0008] In a preferred technical solution of the utility model, the induction guide rod includes a coaxially arranged connecting section and a contact section, the connecting section is threadedly connected to the connecting tube, and the contact section is fixed to one end of the connecting section away from the connecting tube.

[0009] In a preferred technical solution of the utility model, a sensing sheet is provided at the bottom of the sensing section, and the sensing sheet corresponds to the sensing head.

[0010] In a preferred technical solution of the utility model, the cross section of the sensing sheet is circular or polygonal, and the minimum width of the cross section of the sensing sheet is greater than the maximum width of the cross section of the sensing head.

[0011] In a preferred technical solution of the utility model, a hollow groove is provided on the mounting plate, and the mounting plate is fixedly connected to the oven via a pin penetrating the hollow groove.

[0012] The second purpose of the utility model is to provide a sprayer oven, comprising a box body, on which a feed port is provided, characterized in that the feed port is provided with the induction positioning mechanism for the low-pressure sprayer oven as described above.

[0013] In a preferred technical solution of the utility model, a receiving roller is arranged at the feed inlet, and the receiving roller is located at one side of the positioning mechanism; a plurality of clamping plates are arranged on the receiving roller, and a clamping notch is arranged on the clamping plate.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides an induction positioning mechanism for a low-pressure sprayer oven and a sprayer oven. The positioning mechanism includes a mounting plate, which is fixedly connected to the side wall of the oven; a positioning piece is arranged on the mounting plate, and the positioning piece includes a connecting part, an induction guide rod and an induction segment. The connecting part is hinged to the mounting plate, and the induction guide rod and the induction segment are respectively arranged on both sides of the connecting part. The mounting plate is also provided with an induction head, and the induction head corresponds to the induction segment. In the original state, the induction segment is in contact with the induction head. During use, the positioning mechanism is arranged at the entrance of the oven, and during the feeding process, the circuit board enters the entrance of the oven from top to bottom. When the circuit board presses down the induction guide rod, the induction guide rod drives the induction segment to leave the induction head. After the circuit board reaches the set position of the oven, it is clamped by the fixture inside the oven. At this time, the induction guide rod is reset, and the induction segment is in contact with the induction head again, completing the detection of a circuit board. Since the positioning mechanism uses the induction guide rod to sense whether the circuit board is delivered in place, it can reduce the contact area with the circuit board during the positioning process, reduce the damage to the ink of the circuit board, and thus help to ensure the production quality of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the induction positioning mechanism for the oven of the low-pressure spraying machine provided by the utility model;

[0017] Figure 2 This is the front view of the induction positioning mechanism for the low-pressure sprayer oven provided by the utility model

[0018] Figure 3 The utility model is a schematic structural diagram of an induction positioning mechanism for an oven provided by the utility model, which is arranged in a box body.

[0019] Reference numerals:

[0020] 1. Mounting plate; 11. Sensing head; 12. Hollow groove; 2. Positioning plate; 21. Sensing section; 211. Sensing sheet; 22. Connecting part; 221. Connecting tube; 23. Sensing guide rod; 231. Connecting section; 232. Contact section; 100. Box; 110. Feeding port; 200. Receiving roller; 300. Material clamping plate; 310. Material clamping notch. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0022] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "said" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0023] Example

[0024] Spraying machine is a kind of surface treatment equipment widely used in automobile, furniture, electronics and other industries. It sprays the paint evenly on the surface of the workpiece to achieve the purpose of protection, decoration and improving product performance. During the spraying process, the paint needs to go through heating, atomization and other steps to form a mist suitable for spraying. Existing spraying machines usually use high-temperature ovens to heat the paint so that the paint solidifies. Low-pressure spraying ovens are also needed in the production process of circuit boards. Its main function is to bake the circuit boards that have undergone a series of processes such as pre-treatment, lamination, exposure, and development, so that the ink on the circuit boards is solidified, thereby completing the production of the circuit boards.

[0025] An induction positioning mechanism is set at the entrance of the oven to determine whether the circuit board has reached the predetermined position. When the induction positioning mechanism determines that the circuit board has completely entered the oven, the clamping components in the oven will clamp the circuit board so that the circuit board can be turned over for baking. The existing induction positioning mechanism determines whether the circuit board is in place by the contact between the induction sheet and the circuit board. However, when the induction sheet contacts the circuit board, the ink on the circuit board is easily scratched due to the large contact area between the induction sheet and the circuit board, resulting in damage to the ink, which is not conducive to the production of the circuit board. Based on this, the present application provides an induction positioning mechanism for a low-pressure sprayer oven.

[0026] like Figure 1-Figure 3 As shown, an induction positioning mechanism for a low-pressure spray machine oven includes a mounting plate 1, which is fixedly connected to the side wall of the oven; a positioning piece 2 is provided on the mounting plate 1, and the positioning piece 2 includes a connecting portion 22, an induction guide rod 23 and an induction segment 21, the connecting portion 22 is hinged to the mounting plate 1, the induction guide rod 23 and the induction segment 21 are respectively arranged on both sides of the connecting portion 22, and an induction head 11 is also provided on the mounting plate 1, and the induction head 11 corresponds to the induction segment 21.

[0027] Specifically, a hollow groove 12 is provided on the mounting plate 1, and the mounting plate 1 is fixedly connected to the oven via a pin penetrating the hollow groove 12. The mounting plate 1 is detachable for easy replacement.

[0028] In addition, the mounting plate 1 is made of aluminum alloy or stainless steel. The induction head 11 of the present application is implemented by a high temperature resistant inductor. In the original state of the induction positioning mechanism for the low-pressure sprayer oven, the induction head 11 and the induction section 21 are in contact with each other. During operation, the rotation of the induction guide rod 23 will drive the induction section 21 to rotate synchronously, so that the induction section 21 leaves the induction head 11, thereby causing the induction head 11 to have a current change, thereby realizing the detection of incoming materials.

[0029] The above-mentioned induction positioning mechanism for a low-pressure sprayer oven and the sprayer oven, the positioning mechanism includes a mounting plate 1, the mounting plate 1 is fixedly connected to the side wall of the oven; a positioning piece 2 is arranged on the mounting plate 1, the positioning piece 2 includes a connecting portion 22, an induction guide rod 23 and an induction segment 21, the connecting portion 22 is hinged to the mounting plate 1, the induction guide rod 23 and the induction segment 21 are respectively arranged on both sides of the connecting portion 22, and the mounting plate 1 is also provided with an induction head 11, the induction head 11 corresponds to the induction segment 21. In the original state, the induction segment 21 is in contact with the induction head 11. During use, the positioning mechanism is arranged at the entrance of the oven, and during the feeding process, the circuit board enters the entrance of the oven from top to bottom. When the circuit board presses down the induction guide rod 23, the induction guide rod 23 drives the induction segment 21 to leave the induction head 11, and after the circuit board reaches the set position of the oven, it is clamped away by the fixture inside the oven, at this time, the induction guide rod 23 is reset, and the induction segment 21 is in contact with the induction head 11 again, completing the detection of a circuit board. Since the positioning mechanism uses the sensing guide rod 23 to sense whether the circuit board is delivered in place, it can reduce the contact area with the circuit board during the positioning process and reduce damage to the ink on the circuit board, thereby helping to ensure the production quality of the circuit board.

[0030] This embodiment provides a method for installing the sensing guide rod 23 . The connecting portion 22 is provided with a connecting tube 221 . The sensing guide rod 23 is detachably connected to the connecting tube 221 .

[0031] The sensing guide rod 23 can be threadedly connected to the connecting tube 221 to facilitate disassembly.

[0032] Furthermore, the sensing guide rod 23 includes a coaxially arranged connection section 231 and a contact section 232, wherein the connection section 231 is threadedly connected to the connection tube 221, and the contact section 232 is fixed to an end of the connection section 231 away from the connection tube 221. The connection section 231 can be made of metal, and the connection section 231 is threadedly connected to the connection tube 221, so as to facilitate the replacement of the sensing guide rod 23. The contact section 232 is made of a material with excellent flexibility, and it is necessary to ensure that the contact section 232 does not cause damage to the circuit board when in contact with the circuit board, and that the contact section 232 can drive the entire positioning sheet 2 to rotate through the connection section 231, so that the sensing section 21 and the sensing head 11 are separated from each other.

[0033] Specifically, a sensing sheet 211 is disposed at the bottom of the sensing section 21, and the sensing sheet 211 corresponds to the sensing head 11. Furthermore, the cross section of the sensing sheet 211 is circular or polygonal, and the minimum width of the cross section of the sensing sheet 211 is greater than the maximum width of the cross section of the sensing head 11.

[0034] The induction sheet 211 is used to increase the contact area between the induction segment 21 and the induction head 11 , thereby ensuring that the induction head 11 can be connected to the induction segment 21 , thereby ensuring the detection accuracy of the positioning mechanism.

[0035] The present application also provides a sprayer oven, which includes a box body 100, on which a feed port 110 is provided, and the feed port 110 is provided with the induction positioning mechanism for the low-pressure sprayer oven as described above.

[0036] More specifically, a receiving roller 200 is disposed at the feed port 110 , and the receiving roller 200 is located at one side of the positioning mechanism; a plurality of clamping plates 300 are disposed on the receiving roller 200 , and a clamping notch 310 is disposed on the clamping plate 300 .

[0037] A heating component is also provided in the box 100 for generating heat for baking the circuit board. A clamping component is also provided in the box 100, which can be moved and turned in the box 100, and is used to clamp the circuit board so as to bake different parts of the circuit board.

[0038] The working process of the sprayer oven is as follows: the circuit board enters the feed port 110 from top to bottom, and contacts the induction guide rod 23 of the induction positioning mechanism, driving the induction guide rod 23 to rotate, so that the induction segment 21 leaves the induction head 11. The current of the induction head 11 changes, and the oven controller is informed that a circuit board has entered the oven. After the circuit board enters the oven, it just falls into the clamping notch 310 on the clamping plate 300. The controller controls the clamping component to clamp and transfer the circuit board for baking. After the circuit board is clamped and rotated, the induction guide rod 23 is reset, driving the induction segment 21 to reset. The reset induction segment 21 contacts the induction head 11 again, so as to perform the incoming material sensing of the next circuit board.

[0039] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a component or feature and other components or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the components in use or operation in addition to the orientations described in the figures. For example, if the components in the drawings are inverted, the components described as "above other components or structures" or "above other components or structures" will be positioned as "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both "above" and "below". The component may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein are interpreted accordingly.

[0040] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. The above is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. An induction positioning mechanism for a low-pressure spraying machine oven, comprising a mounting plate (1), wherein the mounting plate (1) is fixedly connected to a side wall of the oven, and characterized in that: The mounting plate (1) is provided with a positioning piece (2), the positioning piece (2) comprising a connecting portion (22), a sensing guide rod (23) and a sensing segment (21), the connecting portion (22) is hinged to the mounting plate (1), the sensing guide rod (23) and the sensing segment (21) are respectively arranged on both sides of the connecting portion (22), and the mounting plate (1) is also provided with a sensing head (11), the sensing head (11) corresponding to the sensing segment (21).

2. The induction positioning mechanism for a low-pressure spraying machine oven according to claim 1, characterized in that: The connecting portion (22) is provided with a connecting tube (221), and the sensing guide rod (23) is detachably connected to the connecting tube (221).

3. The induction positioning mechanism for a low-pressure spraying machine oven according to claim 2, characterized in that: The sensing guide rod (23) comprises a coaxially arranged connecting section (231) and a contact section (232); the connecting section (231) is threadedly connected to the connecting tube (221); and the contact section (232) is fixed to an end of the connecting section (231) away from the connecting tube (221).

4. The induction positioning mechanism for a low-pressure spraying machine oven according to claim 1, characterized in that: A sensing sheet (211) is provided at the bottom of the sensing section (21), and the sensing sheet (211) corresponds to the sensing head (11).

5. The induction positioning mechanism for a low-pressure spraying machine oven according to claim 4, characterized in that: The cross section of the sensing sheet (211) is circular or polygonal, and the minimum width of the cross section of the sensing sheet (211) is greater than the maximum width of the cross section of the sensing head (11).

6. The induction positioning mechanism for a low-pressure spraying machine oven according to any one of claims 1 to 5, characterized in that: A hollow groove (12) is provided on the mounting plate (1), and the mounting plate (1) is fixedly connected to the oven via a pin penetrating the hollow groove (12).

7. A sprayer oven, comprising a housing (100), wherein the housing (100) is provided with a feed inlet (110), characterized in that: The feed port (110) is provided with an induction positioning mechanism for a low-pressure spray machine oven as described in any one of claims 1 to 6.

8. The spraying machine oven according to claim 7, characterized in that: A material receiving roller (200) is arranged at the material inlet (110), and the material receiving roller (200) is located at one side of the positioning mechanism; a plurality of material clamping plates (300) are arranged on the material receiving roller (200), and a material clamping notch (310) is arranged on the material clamping plate (300).

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