Printing and drying device for single-sided printed circuit board

Abstract

The utility model discloses a single-sided printed circuit board printing and drying device which comprises a box body, a door plate is rotatably arranged on the side face of the box body, a first sliding groove is formed in the box body, an I-shaped block is arranged in the first sliding groove in a sliding mode, a ventilation hole is formed in the box body, the ventilation hole is communicated with the first sliding groove, and the I-shaped block is arranged in the first sliding groove in a sliding mode. The I-shaped block is connected with the inner wall of the first sliding groove through a third spring, the first fixing rod is fixedly connected to the inner side of the door plate, the end of the first fixing rod is fixedly connected with a first circular truncated cone block, and the first circular truncated cone block abuts against one end of the I-shaped block. According to the utility model, when the circuit board is dried to be 70% cooked, the door plate is opened, the I-shaped block loses the abutting action of the first circular truncated cone block, and slides in the first sliding groove under the elastic force action of the third spring, so that the I-shaped block does not shield the ventilation hole any more, and hot air in the box body is rapidly sucked; and hot air in the box body is prevented from scalding workers.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production, in particular to a printing and drying device for a single-sided printed circuit board. Background Art

[0002] During the production process of circuit boards, it is necessary to dry the printing ink on their surface. On the one hand, it can prevent the residual liquid on the surface of the circuit boards from contaminating the operators when the circuit boards are stacked or manually transferred into the warehouse, and it can also avoid oxidation or rust on the surface of the circuit boards during storage.

[0003] When drying the printed ink on the surface of the circuit board, the circuit board needs to be placed in a drying device. The circuit board printing ink coating is carried out in two steps. The first step is to send the circuit board into the dryer and dry it until it is "seven-tenths cooked" to make it slightly hardened, and then cover the coating surface with an exposure film. The second step is to continue to send the circuit board into the dryer for complete drying, and then use chemicals to wash off the "seven-tenths cooked" insulating coating. However, when the circuit board that is dried to "seven-tenths cooked" needs to be taken out of the dryer in time, when the dryer door panel is opened, due to the large difference between the internal temperature of the dryer and the outside temperature, heat waves will be sprayed out, which can easily cause burns to the staff and pose a safety risk. Utility Model Content

[0004] The utility model aims to provide a single-sided printed circuit board printing and drying device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single-sided printed circuit board printing and drying device, comprising: a box body, a door panel is rotatably arranged on the side of the box body, a locking mechanism is arranged on the door panel, a first slide groove is opened in the box body, an I-shaped block is slidably arranged in the first slide groove, a ventilation hole is opened on the box body, the ventilation hole is connected to the first slide groove, the I-shaped block is connected to the inner wall of the first slide groove through a third spring, and the locking mechanism comprises a first fixing rod, the first fixing rod is fixedly connected to the inner side of the door panel, the end of the first fixing rod is fixedly connected to the first truncated cone block, and the first truncated cone block abuts against one end of the I-shaped block.

[0006] Furthermore, a ventilation duct is fixedly connected to the side of the box body, and the ventilation duct is communicated with the ventilation hole.

[0007] Furthermore, a second sliding groove is provided in the first sliding groove, a wedge block is slidably provided in the second sliding groove, and the wedge block is connected to the inner wall of the second sliding groove via a second spring.

[0008] Furthermore, a second truncated cone block is movably sleeved outside the first fixing rod, a second fixing rod is fixedly connected to the outer side of the door panel, a circular ring piece is movably sleeved outside the second fixing rod, and the first truncated cone block and the circular ring piece are connected by two connecting rods.

[0009] Furthermore, the annular piece is connected to the outer side wall of the door panel via a first spring.

[0010] Furthermore, a round handle is threadedly connected to the end of the second fixing rod.

[0011] Furthermore, a sealing strip is fixedly connected to the inner side of the door panel.

[0012] Furthermore, a heating element is disposed on the top and side of the inner cavity of the box.

[0013] In the above technical solution, the utility model provides a single-sided printed circuit board printing and drying device with the beneficial effects of:

[0014] In the utility model, when the circuit board is placed into the box and the door panel is closed, the first truncated cone block is inserted into the first slide groove, and then the I-shaped block is squeezed, so that the I-shaped block covers most of the ventilation holes, and the remaining small holes are used to absorb volatile substances and moisture generated during the drying process, so as to keep the drying environment dry and clean; when the circuit board is dried to "seven-tenths done", the door panel is opened, and the I-shaped block loses the abutment effect of the first truncated cone block, and slides in the first slide groove under the elastic force of the third spring, so that the I-shaped block no longer covers the ventilation holes, so that the hot air in the box is quickly sucked, thereby preventing the hot air in the box from scalding the staff.

[0015] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0016] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the structure provided for an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the locking mechanism structure provided by an embodiment of the utility model;

[0020] Figure 3 A cross-sectional view of the installation position of the locking mechanism provided in the embodiment of the utility model;

[0021] Figure 4 The embodiment of the utility model provides Figure 3 Enlarged view of point A.

[0022] Description of reference numerals:

[0023] 1. Box body; 11. First slide slot; 12. Second slide slot; 13. Ventilation hole; 2. Door panel; 3. Locking mechanism; 31. First fixing rod; 32. First truncated cone block; 33. Second truncated cone block; 34. Second fixing rod; 35. First spring; 36. Circular ring; 37. Connecting rod; 38. Round handle; 4. Heating element; 5. Sealing strip; 6. Wedge block; 61. Second spring; 7. I-shaped block; 8. Third spring; 9. Ventilation duct. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0025] Please refer to 1-4, a single-sided printed circuit board printing and drying device, including: a box body 1, a door panel 2 is rotatably arranged on the side of the box body 1, a locking mechanism 3 is arranged on the door panel 2, a first slide groove 11 is opened in the box body 1, an I-shaped block 7 is slidably arranged in the first slide groove 11, a ventilation hole 13 is opened on the box body 1, the ventilation hole 13 is connected to the first slide groove 11, the I-shaped block 7 is connected to the inner wall of the first slide groove 11 through two third springs 8, one end of the third spring 8 is fixedly connected to the I-shaped block 7, and the other end of the third spring 8 is fixedly connected to the inner wall of the first slide groove 11, the locking mechanism 3 includes a first fixed rod 31, the first fixed rod 31 is fixedly connected to the inner side of the door panel 2, the end of the first fixed rod 31 is fixedly connected to the first truncated cone block 32, and the first truncated cone block 32 abuts against one end of the I-shaped block 7.

[0026] Specifically, in the utility model, when the circuit board is placed in the box body 1 and the door panel 2 is closed, the first truncated cone block 32 is inserted into the first slide groove 11, and then the I-shaped block 7 is squeezed, so that the I-shaped block 7 blocks most of the ventilation holes 13, and the remaining small holes are used to absorb volatile substances and moisture generated during the drying process to keep the drying environment dry and clean. When the circuit board is dried to "70% done", the door panel 2 is opened, and the I-shaped block 7 loses the abutment of the first truncated cone block 32. Under the elastic force of the third spring 8, it slides in the first slide groove 11, so that the I-shaped block 7 no longer blocks the ventilation holes 13, so that the hot air in the box body 1 is quickly sucked, thereby preventing the hot air in the box body 1 from scalding the staff.

[0027] Furthermore, a ventilation duct 9 is fixedly connected to the side of the box body 1 , and the ventilation duct 9 is communicated with the ventilation hole 13 .

[0028] Specifically, refer to Figure 1 The ventilation duct 9 is connected to an external suction device to extract the air in the box body 1.

[0029] Furthermore, a second slide groove 12 is provided in the first slide groove 11, and a wedge block 6 is slidably arranged in the second slide groove 12. The wedge block 6 is connected to the inner wall of the second slide groove 12 through a second spring 61, one end of the second spring 61 is fixedly connected to the top of the wedge block 6, and the other end of the second spring 61 is fixedly connected to the inner wall of the second slide groove 12, a second truncated cone block 33 is movably sleeved on the outside of the first fixed rod 31, a second fixed rod 34 is fixedly connected to the outer side of the door panel 2, a circular ring piece 36 is movably sleeved on the outside of the second fixed rod 34, the first truncated cone block 32 and the circular ring piece 36 are connected by two connecting rods 37, the circular ring piece 36 and the outer side wall of the door panel 2 are connected by a first spring 35, one end of the first spring 35 is fixedly connected to the circular ring piece 36, and the other end of the first spring 35 is fixedly connected to the outer side wall of the door panel 2, and a round handle 38 is threadedly connected to the end of the second fixed rod 34.

[0030] Specifically, refer to Figures 2 to 4When the door panel 2 is closed, the first truncated cone block 32 is inserted into the first sliding groove 11 to squeeze the I-shaped block 7, so that the I-shaped block 7 overcomes the elastic force of the third spring 8 and slides to the right. The I-shaped block 7 covers most of the ventilation hole 13, leaving only a small opening for ventilation, so as to discharge the volatile substances and moisture generated during the drying process and keep the drying environment dry and clean; when the door panel 2 needs to be opened, the round handle 38 is twisted so that the round handle 38 squeezes the circular ring piece 36, so that the circular ring piece 36 overcomes the elastic force of the first spring 35 and moves to the right, thereby making the second truncated cone block 33 slide to the right. The wedge block 6 moves, and then squeezes the wedge block 6, so that the wedge block 6 overcomes the elastic force of the second spring 61, so that the wedge block 6 slides into the second slide groove 12, until the second truncated cone block 33 contacts the first truncated cone block 32, and then the round handle 38 is pulled to pull the first truncated cone block 32 out of the first slide groove 11, and the I-shaped block 7 loses the abutment effect of the first truncated cone block 32, and under the elastic force of the third spring 8, it slides in the first slide groove 11, so that the I-shaped block 7 no longer blocks the ventilation hole 13, so that the hot air in the box body 1 is quickly sucked, thereby preventing the hot air in the box body 1 from scalding the staff.

[0031] Furthermore, a sealing strip 5 is fixedly connected to the inner side of the door panel 2 .

[0032] Specifically, refer to Figure 1 The sealing strip 5 is used to enhance the sealing performance of the box body 1 .

[0033] Furthermore, a heating element 4 is disposed on the top and side of the inner cavity of the box body 1 .

[0034] Specifically, the circuit board placed in the box 1 is heated by the heating elements 4 in three directions, and then the coating on the surface of the circuit board is dried.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A single-sided printed circuit board printing and drying device, comprising: A box body (1), characterized in that: a door panel (2) is rotatably arranged on the side of the box body (1), a locking mechanism (3) is arranged on the door panel (2), a first slide groove (11) is provided in the box body (1), an I-shaped block (7) is slidably arranged in the first slide groove (11), a ventilation hole (13) is provided on the box body (1), the ventilation hole (13) is connected to the first slide groove (11), the I-shaped block (7) is connected to the inner wall of the first slide groove (11) through a third spring (8), and the locking mechanism (3) comprises a first fixing rod (31), the first fixing rod (31) is fixedly connected to the inner side of the door panel (2), the end of the first fixing rod (31) is fixedly connected to a first truncated cone block (32), and the first truncated cone block (32) abuts against one end of the I-shaped block (7).

2. A single-sided printed circuit board printing and drying device according to claim 1, characterized in that: A ventilation duct (9) is fixedly connected to the side of the box body (1), and the ventilation duct (9) is in communication with the ventilation hole (13).

3. A single-sided printed circuit board printing and drying device according to claim 1, characterized in that: A second sliding groove (12) is provided in the first sliding groove (11), a wedge block (6) is slidably provided in the second sliding groove (12), and the wedge block (6) is connected to the inner wall of the second sliding groove (12) via a second spring (61).

4. A single-sided printed circuit board printing and drying device according to claim 3, characterized in that: A second truncated cone block (33) is movably sleeved outside the first fixing rod (31), a second fixing rod (34) is fixedly connected to the outer side of the door panel (2), a circular ring piece (36) is movably sleeved outside the second fixing rod (34), and the first truncated cone block (32) and the circular ring piece (36) are connected via two connecting rods (37).

5. A single-sided printed circuit board printing and drying device according to claim 4, characterized in that: The annular piece (36) is connected to the outer side wall of the door panel (2) via a first spring (35).

6. A single-sided printed circuit board printing and drying device according to claim 5, characterized in that: A round handle (38) is threadedly connected to the end of the second fixing rod (34).

7. A single-sided printed circuit board printing and drying device according to claim 1, characterized in that: A sealing strip (5) is fixedly connected to the inner side of the door panel (2).

8. A single-sided printed circuit board printing and drying device according to claim 1, characterized in that: A heating element (4) is disposed on the top and side of the inner cavity of the box body (1).

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