Side clamping type clamping assembly for circuit board drying

Abstract

The utility model relates to the technical field of circuit board drying, and provides a side clamping type clamping assembly for circuit board drying, which comprises a cross beam, and the middle part of the upper end of the cross beam is fixedly connected with a plurality of lower clamping grooves; the two pile heads are fixedly connected to the upper end of the cross beam in a front-back symmetry mode, movable hooks are hinged to the lower portions of the pile heads, the other ends of the movable hooks are connected with springs, mounting holes are formed in the cross beam, and the lower ends of the springs are arranged in the mounting holes. The pile head is fixedly connected with the limiting pin in a left-right penetrating manner; the upper portion of the pile head is hinged to the side embracing arm, a torsion spring is arranged at the hinged position, and the bottom end of the side embracing arm is connected with the movable hook in a clamped mode. Through the design of the lower clamping grooves and the side holding arms, it is ensured that a proper distance is kept between every two adjacent circuit boards in the drying process, and the problem of uneven drying caused by contact is effectively avoided. And a limiting structure of the side clamping type clamping assembly allows to reduce the distance between the circuit boards on the premise of ensuring the drying effect, so that the use efficiency of the equipment and the overall production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board drying, in particular to a side clamping component for circuit board drying. Background Art

[0002] With the rapid development of the electronics industry, as an indispensable core component of electronic devices, the manufacturing process precision and efficiency of printed circuit boards have become the key factors in the competitiveness of the electronics manufacturing industry. In the production process of printed circuit boards, the drying and baking of ink is an important step to ensure the stable performance and reliability of circuit boards. Traditional drying methods, such as vertical ovens, although able to complete the drying task, have problems such as low efficiency, high energy consumption, and high labor costs. To address these challenges, tunnel furnaces, as an efficient continuous drying device, have emerged. Through an automated chain conveying system, they achieve rapid and uniform drying of printed circuit boards.

[0003] The application of tunnel furnaces has significantly improved production efficiency and reduced manual intervention. However, the existing technology still faces some challenges during the drying process. For example, when drying printed circuit boards with a relatively thick thickness and heavy weight, the printed circuit boards often fall due to their own gravity, causing damage to the printed circuit boards. In addition, if the spacing between printed circuit boards during the drying process is not properly controlled, it may lead to contact between adjacent printed circuit boards, scratching the already printed circuit boards and affecting the performance of the printed circuit boards. Moreover, increasing the spacing between printed circuit boards to ensure drying quality will reduce the loading capacity of the tunnel furnace, thereby affecting the overall production efficiency. Therefore, it is particularly important to develop a side clamping component for drying that can effectively solve these problems. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a side clamping component for circuit board drying, including:

[0005] A cross beam, in the middle of the upper end of the cross beam, several lower clamping grooves are fixedly connected, and the lower clamping grooves are used to support the bottom of the circuit board when drying the circuit board;

[0006] Stubs, two stubs are fixedly connected symmetrically before and after at the upper end of the cross beam. An active hook is hinged to the lower part of the stub, and the other end of the active hook is connected with a spring. An installation hole is opened on the cross beam, and the lower end of the spring is placed into the installation hole;

[0007] A limit pin, the limit pin is fixedly connected through the left and right of the stub, and the limit pin is used to limit the upward movement of the active hook;

[0008] The side clamping arms are hinged to the upper part of the pile head, and a torsion spring is provided at the hinge. The opposite movement of the upper ends of the side clamping arms is used to separate adjacent circuit boards during the drying of the circuit boards. The bottom end of the side clamping arm is clamped with the movable hook. The movable hook can be pushed by a cylinder on the tunnel furnace to release the side clamping arm, so that the upper ends of the side clamping arms move towards each other to clamp the circuit board. After drying, the bottom end of the side clamping arm can be pushed by the cylinder on the tunnel furnace to reconnect the bottom end of the side clamping arm with the movable hook.

[0009] Furthermore, it also includes a limit block which is fixedly connected to the upper part of the pile head and is used to limit the opposite movement of the front and rear side clamping arms.

[0010] Furthermore, the bottom end of the side clamping arm is triangular, and its tip is clamped with the movable hook.

[0011] Furthermore, there are two symmetrically arranged clamping claws at the top of the lower card slot, and the two clamping claws form a groove to hold the bottom of the circuit board during the drying of the circuit board.

[0012] Furthermore, the number of the lower card slots is preferably two.

[0013] Furthermore, the movable hook is provided with a limit post, and the upper end of the spring is sleeved on the lower end of the limit post.

[0014] Furthermore, there are two symmetrically arranged clamping claws at the upper end of the side clamping arm, and the two clamping claws form a groove to separate adjacent circuit boards during the drying of the circuit board.

[0015] Furthermore, there are several mounting holes at the front and rear ends of the cross beam, and the cross beam is fixed on the conveying mechanism of the tunnel furnace through the several mounting holes.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The drying quality is significantly improved. By designing the lower card slot and the side clamping arm structure, it is ensured that the lower card slot can hold the circuit board for drying during the drying process, and an appropriate distance can be maintained between adjacent circuit boards, effectively avoiding the problem of uneven drying caused by contact. This precise distance control not only ensures that each circuit board can receive sufficient hot air circulation, but also ensures the uniform drying of the ink, thus significantly improving the overall drying quality of the circuit board.

[0018] 2. The production efficiency is significantly improved. The limit structure of the side clamping type clamping component allows the distance between circuit boards to be reduced on the premise of ensuring the drying effect. Such a design enables the tunnel furnace to load more circuit boards during each drying process, thereby improving the use efficiency of the equipment and the overall production efficiency. In addition, through the automatic opening and closing mechanism of the cylinder-driven movable hook and the side clamping arm, the automatic and rapid clamping and release of the circuit board are realized, further optimizing the production process, reducing the pause time in production, and enhancing the continuous operation ability of the production line. Brief Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are only one embodiment of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic front view of the front side structure of a side clamping assembly for drying circuit boards.

[0021] Figure 2 It is a schematic left view of the side clamping assembly for drying circuit boards when clamping a circuit board.

[0022] Figure 3 It is a schematic left view of the side clamping assembly for drying circuit boards when not clamping a circuit board.

[0023] Figure 4 It is Figure 1 The partial enlarged view at position A in

[0024] Figure 5 It is a schematic view of the pile head structure.

[0025] Figure 6 It is a schematic view of the movable hook structure.

[0026] Figure 7 It is a schematic view of the limit block structure.

[0027] Figure 8 It is a schematic view of the overall structure of the side clamping assembly for drying circuit boards when clamping a circuit board.

[0028] The reference numerals in the drawings are: 10, cross beam; 20, lower card slot; 201, clamping jaw; 30, pile head; 40, movable hook; 401, limit post; 50, spring; 60, limit pin; 70, side holding arm; 701, claw; 80, limit block; 90, circuit board. Detailed Embodiments

[0029] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the following clearly and completely describes the technical solutions in the specific embodiments of the present invention to further illustrate the present invention. Obviously, the described specific embodiments are only a part of the embodiments of the present invention, rather than all the styles.

[0030] Example: As Figures 1 to 7As shown in the figure, the side clamping assembly for drying circuit boards includes a cross beam 10, a lower card slot 20, a terminal 30, a movable hook 40, a spring 50, a limit pin 60, and a side holding arm 70.

[0031] In the middle of the upper end of the cross beam 10, a number of lower card slots 20 are fixedly connected. In this embodiment, the number of lower card slots 20 is two. At the top of the lower card slots 20, there are two symmetrically arranged clamping claws 201 on the left and right. When drying the circuit board 90, the bottom of the circuit board 90 is located in the groove formed by the two clamping claws 201. The groove can hold the bottom of the circuit board 90, and the two clamping claws 201 can also separate two adjacent circuit boards 90. A number of mounting holes are provided at the front and rear ends of the cross beam 10, and the cross beam 10 is fixed on the conveying mechanism of the tunnel furnace through the number of mounting holes.

[0032] At the front and rear symmetry of the upper end of the cross beam 10, two terminals 30 are fixedly connected. The lower part of the terminal 30 is hinged with a movable hook 40. A limit post 401 is provided on the movable hook 40. An installation hole is opened on the cross beam 10 in the area below the limit post 401. The upper end of the spring 50 is sleeved on the lower end of the limit post 401, and the lower end of the spring 50 is placed in the installation hole on the cross beam 10.

[0033] The limit pin 60 penetrates through and is fixedly connected to the terminal 30 from left to right. The position of the limit pin 60 is between the hinge joint of the movable hook 40 and the terminal 30 and the limit post 401. The spring 50 is always in a compressed state. Through the elastic force of the spring 50, the movable hook 40 can be pushed upward, and at the same time, with the cooperation of the limit pin 60, the movable hook 40 can be kept in a state convenient for engaging with the side holding arm 70.

[0034] The side holding arm 70 is hinged to the upper part of the terminal 30. At the upper end of the side holding arm 70, there are two symmetrically arranged clamping claws 701 on the left and right. The two clamping claws 701 form a groove for separating two adjacent circuit boards 90 when drying the circuit board 90. The bottom end of the side holding arm 70 is triangular, and its tip is engaged with the movable hook 40. A torsion spring is provided at the hinge joint of the terminal 30 and the side holding arm 70. After the movable hook 40 disengages from the state of engaging with the side holding arm 70, the upper ends of the two side holding arms 70 will move towards each other under the action of the torsion spring to side hold the circuit boards 90 located on the same cross beam 10, thereby separating two adjacent circuit boards 90. To prevent the upper ends of the two side holding arms 70 from moving too close to each other due to the action of the torsion spring, a limit block 80 is also fixedly connected to the upper part of the terminal 30. Through the limit block 80, the bottom ends of the two side holding arms 70 can be prevented from moving too far away from each other, facilitating the operation of engaging the side holding arm 70 with the movable hook 40.

[0035] The installation distribution of the side clamping assembly for drying circuit boards in this embodiment on the tunnel furnace is as Figure 8 shown, and the initial state of the side clamping assembly is as Figure 3As shown, the bottom end of the side holding arm 70 is clamped with the movable hook 40, and the side clamping and holding assembly rotates clockwise. The circuit board 90 is conveyed from left to right. When the circuit board 90 is conveyed to the left horizontal side clamping and holding assembly and abuts against the lower card slot 20, the telescopic rod can be driven by the air cylinder installed at the left end of the tunnel furnace to push the movable hook 40 to rotate to the right. At this time, the spring 50 is further compressed, thereby releasing the side holding arm 70. The upper ends of the two side holding arms 70 move towards each other under the action of the torsion spring, and side hold the circuit board 90 that abuts against the lower card slot 20, so that the circuit board 90 can be converted from horizontal to vertical as the side clamping and holding assembly rotates clockwise, and adjacent two circuit boards 90 are always in a separated state. As the side clamping and holding assembly rotates clockwise, the vertically placed circuit board 90 is conveyed into the tunnel furnace for drying. After drying is completed, the telescopic rod is driven by the air cylinder installed at the right end of the tunnel furnace to push the bottom ends of the side holding arms 70 to move towards each other until the bottom end of the side holding arm 70 is clamped with the movable hook 40. At this time, the upper ends of the side holding arms 70 move away from each other, thereby releasing the circuit board 90, so that the circuit board 90 can be conveyed to the next process. Repeating the above actions can continuously dry the conveyed circuit boards 90.

[0036] Because the conveying frequency of the circuit board 90 is not constant, there is a situation where a certain set of side clamping and holding assemblies do not hold the circuit board 90. Since the side clamping and holding assemblies are installed on the conveying mechanism of the tunnel furnace with a certain degree of shaking, when a certain set of side clamping and holding assemblies do not hold the circuit board 90, if the side holding arms 70 still perform the side holding action, it is easy to scrape the adjacent circuit board 90 of this set of side clamping and holding assemblies and damage the adjacent circuit board 90. Therefore, when a certain set of side clamping and holding assemblies do not hold the circuit board 90, the air cylinder at the left end of the tunnel furnace is not started, and this set of side clamping and holding assemblies is allowed to continue rotating in the state where the bottom end of the side holding arm 70 is clamped with the movable hook 40. Correspondingly, when this set of side clamping and holding assemblies rotates to the right end of the tunnel furnace, the air cylinder at the right end of the tunnel furnace is not started either, and this set of side clamping and holding assemblies is allowed to continue rotating to the left end of the tunnel furnace.

[0037] The above describes the main technical features, basic principles and related advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary specific embodiments, and can be implemented in other specific forms without departing from the concept or basic features of the present invention. Therefore, from any point of view, the above specific embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

[0038] In addition, it should be understood that although this specification is described according to various embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A side clamping component for drying a circuit board, characterized in that, Including: A cross beam (10), in the middle of the upper end of the cross beam (10), several lower clamping grooves (20) are fixedly connected, and the lower clamping grooves (20) are used to support the bottom of the circuit board (90) when drying the circuit board (90); Terminal posts (30), two terminal posts (30) are fixedly connected symmetrically in the front and back of the upper end of the cross beam (10), a movable hook (40) is hinged to the lower part of the terminal post (30), the other end of the movable hook (40) is connected with a spring (50), an installation hole is formed on the cross beam (10), and the lower end of the spring (50) is placed into the installation hole; A limit pin (60), the limit pin (60) is fixedly connected through the left and right of the terminal post (30), and the limit pin (60) is used to limit the upward movement of the movable hook (40); Side holding arms (70), the side holding arms (70) are hinged to the upper part of the terminal post (30), a torsion spring is arranged at the hinge, and the opposite movement of the upper ends of the side holding arms (70) is used to separate adjacent two circuit boards (90) when drying the circuit board (90), and the bottom end of the side holding arm (70) is clamped with the movable hook (40).

2. The side clamping type clamping assembly for drying a circuit board according to claim 1, wherein, It further includes a limit block (80), the limit block (80) is fixedly connected to the upper part of the terminal post (30), and the limit block (80) is used to limit the opposite movement of the front and back two side holding arms (70).

3. The side clamping type clamping assembly for drying a circuit board according to claim 1, wherein, The bottom end of the side holding arm (70) is triangular, and its tip is clamped with the movable hook (40).

4. The side clamping type clamping assembly for drying a circuit board according to claim 1, wherein On the top of the lower clamping groove (20), two clamping claws (201) are symmetrically arranged on the left and right, and the two clamping claws (201) form a groove for supporting the bottom of the circuit board (90) when drying the circuit board (90).

5. The side clamping type clamping assembly for drying a circuit board according to claim 1, wherein The number of the lower clamping grooves (20) is two.

6. The side clamping type clamping assembly for drying a circuit board according to claim 1, wherein, The movable hook (40) is provided with a limit post (401), and the upper end of the spring (50) is sleeved on the lower end of the limit post (401).

7. The side clamping type clamping assembly for drying a circuit board according to claim 1, wherein On the upper end part of the side holding arm (70), two clamping claws (701) are symmetrically arranged on the left and right, and the two clamping claws (201) form a groove for separating adjacent two circuit boards (90) when drying the circuit board (90).

8. A side-clamping holding assembly for drying a circuit board according to claim 1, wherein, Several installation holes are arranged at the front and back ends of the cross beam (10), and the cross beam (10) is fixed on the conveying mechanism of the tunnel furnace through the several installation holes.

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