Multi-temperature-zone pattern layer drying machine for PCB (Printed Circuit Board) processing
By setting up multi-temperature zones and optimizing clamping mechanisms in the PCB board dryer, the problem of friction damage during the drying process of PCB board is solved, and efficient multi-temperature zone drying and damage reduction effect is achieved.
Patent Information
- Application Number
- CN202420803680.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-18
AI Technical Summary
In the prior art, the frictional damage caused by clamping and fixing during the drying process of PCB board has not been effectively solved.
A multi-temperature zone layer dryer is designed. By setting a partition and an electric heating wire inside the box, heating of multiple temperature zones is achieved, and U-shaped seats, push blocks and connecting pulls are used in the clamping mechanism. Structure to reduce friction between the PCB board and the clamping mechanism.
It effectively avoids frictional damage to PCB boards during drying, improves drying efficiency, and prevents damage caused by layer flow and excessive temperature through multi-temperature drying technology.
Smart Images
Figure CN222170116U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCB board processing, in particular to a multi-temperature zone layer drying machine for PCB board processing. Background Art
[0002] PCB board is also called printed circuit board. During production, it is necessary to first apply a layer of coating on the surface of the PCB board, and then use copper etching technology to process the circuit of the PCB board. After the layer of coating is applied to the PCB board, it is necessary to dry the layer of the PCB board. When the layer is dried, the PCB board is first clamped and fixed by a clamping mechanism, and then the surface of the layer is quickly dried with high temperature, and then the layer is further dried with medium and low temperatures.
[0003] In the prior art, the edge of the PCB is usually directly inserted into a fixed slot for fixing. This fixing method easily causes friction between the PCB and the clamping component, thereby damaging the PCB. Utility Model Content
[0004] In order to solve the technical problem that in the prior art, the PCB board is easily damaged due to friction when it is fixed during the drying process of the PCB board, the utility model provides a multi-temperature zone layer drying machine for PCB board processing;
[0005] The utility model provides a multi-temperature zone layer drying machine for PCB board processing, which adopts the following technical solutions:
[0006] A multi-temperature zone layer drying machine for PCB board processing comprises a box body, a cover plate is hinged at the front opening of the box body by a hinge, evenly distributed partitions are arranged inside the box body, a base plate is slidably arranged inside the box body through a sliding bar fixedly arranged on the inner wall thereof, the partition and the base plate are arranged at intervals, a protective cover is arranged in the square opening opened at the rear of the box body, a fan and a heating wire are arranged inside the protective cover, and an evenly distributed clamping mechanism is arranged on the upper part of the base plate, the clamping mechanism comprises a U-shaped seat, the U-shaped seat is evenly arranged on the upper part of the base plate, square seats are fixedly arranged at both ends of the inner walls of the two side edges of the U-shaped seat, a clamping seat is slidably arranged between the two square seats located on the same side edge of the U-shaped seat, a push block is slidably arranged on the middle part of the outer side surface of the clamping seat, the lower parts of the two adjacent push blocks are connected by a connecting plate, a strip plate is arranged on the upper part of the connecting plate, a guide rod is arranged on the lower part of the connecting plate, and a card slot opened at the lower end of the guide rod corresponds to a card head slidably arranged on the lower part of the base plate.
[0007] Furthermore, the lower end of the guide rod is slidably arranged in cooperation with the guide sleeve arranged on the base plate, a circular ring seat is arranged at the lower part of the base plate, and a clamping head slidably arranged inside the circular ring seat corresponds to a clamping groove opened at the lower end of the guide rod.
[0008] Furthermore, a fixing plate is arranged at the lower part of the base plate, a pull rod is slidably arranged at the middle part of the fixing plate, an inner end of the pull rod is fixedly connected to a clamping head, and a first spring is arranged between the clamping head and the fixing plate.
[0009] Furthermore, a second spring is sleeved on the outside of the guide rod, and the second spring is located between the base plate and the connecting plate.
[0010] Furthermore, the rear part of the box body is provided with evenly distributed porous plates, and the porous plates are respectively located below the shields.
[0011] Furthermore, a handle is provided on the front side of the base plate, and two symmetrically distributed vertical plates are provided on the lower part of the base plate.
[0012] Furthermore, a sealing strip is provided at the front of each partition.
[0013] Furthermore, feet are provided at the four corners of the bottom of the box.
[0014] In summary, the beneficial effects of the utility model are:
[0015] 1. The utility model divides the interior of the box into a plurality of spaces by arranging partitions inside the box. When drying the PCB board, different spaces inside the box are heated by electric heating wires of different powers, so that the interior of the box has a plurality of temperature zones. The surface of the layer of the PCB board is quickly dried and solidified in the high temperature zone, which can avoid the layer flowing due to a long solidification time. The PCB board is dried in the medium temperature zone, so that the inside of the layer is dried, and at the same time, the PCB board is avoided from being damaged due to excessive temperature. The PCB board is completely dried in the temperature zones, so as to improve the processing efficiency of the PCB board.
[0016] 2. The utility model arranges a U-shaped seat on the base plate, and arranges a clamping seat and a pushing block inside the U-shaped seat. When clamping the PCB board, the PCB board is aligned with the strip plate, and the PCB board is pressed downward. The strip plate pulls the pushing block downward through the connecting plate, and the pushing block pushes the clamping seat to slide, so that the two corresponding clamping seats are close to each other, and then the PCB board is clamped. It can ensure that while the PCB board is quickly clamped, the friction between the PCB board and the clamping seat is reduced, and the damage caused by the friction between the PCB board and the clamping mechanism is avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the assembly of the clamping mechanism of the utility model;
[0019] Figure 3It is a schematic diagram of a top view of the utility model;
[0020] Figure 4 For this utility model Figure 3 Cross-sectional view of the middle AA part;
[0021] Figure 5 It is a structural schematic diagram of the clamping mechanism of the utility model;
[0022] Figure 6 For this utility model Figure 2 Enlarged view of area B.
[0023] As shown in the figure: 1-box; 2-cover; 3-partition; 4-slide; 5-base plate; 6-shield; 7-fan; 8-heating wire; 9-U-shaped seat; 10-square seat; 11-clamping seat; 12-push block; 13-connecting plate; 14-strip plate; 15-guide rod; 16-circular seat; 17-fixing plate; 18-pull rod; 19-first spring; 20-second spring; 21-foot pad; 101-porous plate; 301-sealing strip; 501-handle; 502-vertical plate. DETAILED DESCRIPTION
[0024] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.
[0025] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 A multi-temperature zone layer drying machine for PCB board processing is shown.
[0026] The first embodiment of the utility model refers to Figure 1A multi-temperature zone layer drying machine for PCB board processing includes a box body 1, a cover plate 2 is hinged at the front opening of the box body 1 through a hinge, the movable end of the cover plate 2 and the box body 1 can be buckled together through a buckle, and pads 21 are arranged at the four corners of the bottom of the box body 1, and the pads 21 are convenient for placing the box body 1 in the use position, and the interior of the box body 1 is provided with evenly distributed partitions 3, and the partitions 3 divide the interior of the box body 1 into multiple spaces, and the front of the partitions 3 is provided with sealing strips 301. When the cover plate 2 is buckled, the sealing strips 301 can fit tightly with the cover plate 2 to ensure the sealing of different spaces inside the box body 1. The interior of the box body 1 is slidably provided with a base plate 5 through a slide bar 4 fixedly arranged on its inner wall, and a handle 501 is arranged on the front side of the base plate 5. The handle 501 facilitates the taking and placing of the base plate 5, and the lower part of the base plate 5 is provided with two pairs of The vertical plates 502 are distributed, and the vertical plates 502 can support the substrate 5. After the substrate 5 is taken out, it is convenient to place the substrate 5 on the external desktop. The substrate 5 can be flexibly taken and placed from the inside of the box body 1. The partition 3 and the substrate 5 are spaced apart to ensure that the substrate 5 is located in different spaces inside the box body 1. The square openings at the rear of the box body 1 are provided with shields 6. The rear of the shields 6 is provided with evenly distributed air holes. The inside of the shields 6 is provided with fans 7 and electric heating wires 8. The electric heating wires 8 arranged inside each shield 6 have different powers. When the electric heating wires 8 are working, the temperatures generated are different, thereby dividing the different spaces inside the box body 1 into multiple temperature zones. The fans 7 can accelerate the air flow rate inside the device, and blow the hot air at the electric heating wires 8 to the PCB board. The upper part of the substrate 5 is provided with evenly distributed clamping mechanisms. As a preferred embodiment, Figure 3 and Figure 4 As shown, evenly distributed perforated plates 101 are provided at the rear of the box body 1 , and the perforated plates 101 are respectively located below the shields 6 .
[0027] When the PCB board is dried, the substrate 5 is pulled out, and the PCB board is fixed on the substrate 5 by a clamping mechanism. The substrate 5 with the PCB board installed is first placed in the high temperature zone inside the box 1 for drying, so that the surface layer of the PCB board can be quickly solidified. Then, the operator manually transfers the PCB board dried in the high temperature zone to the medium temperature zone, and then places the PCB board to be dried in the high temperature zone for drying. Finally, the PCB board dried in the high temperature zone is manually transferred to the medium temperature zone again, and the PCB board dried in the medium temperature zone is transferred to the low temperature zone, and the PCB board to be dried is placed in the high temperature zone for drying. After drying, the PCB board in the low temperature zone is taken out, and the above operation is repeated to realize the continuous drying operation of the PCB board. During the drying process of the PCB board, the fan 7 guides the external air to the electric heating wire 8 through the air holes at the rear of the shield 6 for heating, and blows the heated air to the surface of the PCB board to dry the PCB board. Then, the air flows to the bottom of the substrate 5 through the gap between the substrate 5 and the cover plate 2, and finally flows out to the outside through the porous plate 101.
[0028] The second embodiment of the utility model refers to Figure 2 , Figure 5 and Figure 6 As shown, the clamping mechanism includes a U-shaped seat 9, which is evenly arranged on the upper part of the base plate 5. Square seats 10 are fixed at both ends of the inner walls of the two side edges of the U-shaped seat 9. A clamping seat 11 is slidably arranged between the two square seats 10 located on the same side edge of the U-shaped seat 9. The square seat 10 and the clamping seat 11 slide through a dovetail groove and a dovetail slider to ensure that the clamping seat 11 does not separate from the square seat 10 when sliding. A push block 12 is slidably arranged in the middle of the outer side surface of the clamping seat 11. The sliding surfaces of the push block 12 and the clamping seat 11 are both inclined surfaces. When the push block 12 moves up and down, the clamping seat 11 can slide through the dovetail groove on the upper part of the square seat 10. The lower parts of the two adjacent push blocks 12 are connected by a connecting plate 13, and the upper part of the connecting plate 13 is provided with a strip plate 14. A guide rod 15 is provided at the lower part of the connecting plate 13. The groove provided at the lower end of the guide rod 15 corresponds to the clamping head slidably provided at the lower part of the base plate 5. The clamping head and the groove cooperate with each other to prevent the guide rod 15 from moving by itself. The lower end of the guide rod 15 is slidably provided in cooperation with the guide sleeve provided on the base plate 5. A circular ring seat 16 is provided at the lower part of the base plate 5. The clamping head slidably provided inside the circular ring seat 16 corresponds to the groove provided at the lower end of the guide rod 15. A fixed plate 17 is provided at the lower part of the base plate 5. A pull rod 18 is slidably provided at the middle part of the fixed plate 17. The inner end of the pull rod 18 is fixedly connected with the clamping head. A first spring 19 is provided between the clamping head and the fixed plate 17. A second spring 20 is provided on the outer sleeve of the guide rod 15. The second spring 20 is located between the base plate 5 and the connecting plate 13.
[0029] When clamping the PCB board, the PCB board is aligned with the strip plate 14 and the PCB board is pressed downward. The strip plate 14 is pulled downward by the connecting plate 13 to push the push block 12 to move downward, and the push block 12 pushes the clamping seat 11 to slide, so that the two corresponding clamping seats 11 are close to each other, thereby clamping the PCB board. In this process, the connecting plate 13 pushes the guide rod 15 to move downward, the second spring 20 is compressed, and the clamp head slides in the internal slideway of the annular seat 16. Under the cooperative push of the fixing plate 17 and the first spring 19, the clamp head is clamped into the clamping groove at the lower end of the guide rod 15 corresponding to the height of the clamp head itself, so as to avoid the guide rod 15 and the upper component from moving automatically, thereby clamping and fixing the PCB board. When the PCB board needs to be taken out, it is only necessary to pull the pull rod 18, and the pull rod 18 drives the clamp head to slide outward, so that the clamp head is separated from the clamping groove. Under the elastic force of the second spring 20, the connecting plate 13 moves upward with the upper component, so that the clamping seat 11 releases the clamped PCB board.
[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A multi-temperature zone layer drying machine for PCB board processing, comprising a box body (1), a cover plate (2) is hingedly connected to the front opening of the box body (1), evenly distributed partitions (3) are arranged inside the box body (1), a base plate (5) is slidably arranged inside the box body (1) through a slide bar (4) fixedly arranged on the inner wall thereof, the partition plate (3) and the base plate (5) are arranged at intervals, a shield (6) is arranged in the square opening opened at the rear of the box body (1), a fan (7) and an electric heating wire (8) are arranged inside the shield (6), and evenly distributed clamping mechanisms are arranged on the upper part of the base plate (5), characterized in that: The clamping mechanism comprises a U-shaped seat (9), the U-shaped seat (9) is evenly arranged on the upper part of the base plate (5), square seats (10) are fixedly arranged at both ends of the inner walls of the two side edges of the U-shaped seat (9), a clamping seat (11) is slidably arranged between the two square seats (10) located on the same side edge of the U-shaped seat (9), a push block (12) is slidably arranged in the middle of the outer side surface of the clamping seat (11), the lower parts of two adjacent push blocks (12) are connected by a connecting plate (13), a strip plate (14) is arranged on the upper part of the connecting plate (13), a guide rod (15) is arranged on the lower part of the connecting plate (13), and a clamping groove provided at the lower end of the guide rod (15) is matched with a clamping head slidably arranged on the lower part of the base plate (5).
2. The multi-temperature zone layer drying machine for PCB board processing according to claim 1 is characterized in that: The lower end of the guide rod (15) is slidably arranged in cooperation with a guide sleeve arranged on the base plate (5); a circular ring seat (16) is arranged at the lower part of the base plate (5); a clamping head slidably arranged inside the circular ring seat (16) is matched and corresponds to a clamping groove provided at the lower end of the guide rod (15).
3. The multi-temperature zone layer drying machine for PCB board processing according to claim 2 is characterized in that: A fixing plate (17) is arranged at the lower part of the base plate (5), a pull rod (18) is slidably arranged in the middle part of the fixing plate (17), the inner end of the pull rod (18) is fixedly connected to a clamping head, and a first spring (19) is arranged between the clamping head and the fixing plate (17).
4. The multi-temperature zone layer drying machine for PCB board processing according to claim 3 is characterized in that: The guide rod (15) is sleeved with a second spring (20) on its exterior, and the second spring (20) is located between the base plate (5) and the connecting plate (13).
5. The multi-temperature zone layer drying machine for PCB board processing according to claim 1, characterized in that: The rear part of the box body (1) is provided with evenly distributed porous plates (101), and the porous plates (101) are respectively located below the protective covers (6).
6. The multi-temperature zone layer drying machine for PCB board processing according to claim 1, characterized in that: The front side of the base plate (5) is provided with a handle (501), and the lower part of the base plate (5) is provided with two symmetrically distributed vertical plates (502).
7. The multi-temperature zone layer drying machine for PCB board processing according to claim 1, characterized in that: The front part of each of the partitions (3) is provided with a sealing strip (301).
8. The multi-temperature zone layer drying machine for PCB board processing according to claim 5, characterized in that: The four corners of the bottom of the box body (1) are all provided with pads (21).