Centering and clamping mechanism for printed circuit board (PCB) code spraying

Abstract

The utility model discloses a centering and clamping mechanism for printed circuit board (PCB) code spraying, which belongs to the technical field of PCB code spraying processing, and comprises a code spraying groove, support leg frames are fixedly connected to two ends of the bottom of the code spraying groove, two turnover clamping mechanisms which are symmetrically arranged are fixedly inserted into two side walls of the support leg frames, and the turnover clamping mechanisms are fixedly connected with the support leg frames. The bottom of the code spraying groove communicates with a gas purification mechanism, the overturning clamping mechanism comprises a cylindrical shell fixedly inserted in the side wall of the code spraying groove, a round cover shell is inserted in and rotationally connected with the inner side wall of the cylindrical shell, and a telescopic cylinder is fixedly connected with the outer side wall of the cylindrical shell; the driving end of the telescopic cylinder penetrates into the cylindrical shell and is rotationally connected with a moving block through a rotating piece. According to the utility model, the turning clamping mechanism is arranged, so that the PCB can be clamped and turned over at the same time, the code spraying processing is more convenient, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB inkjet printing technology, specifically to a PCB inkjet printing centering and clamping mechanism. Background Technology

[0002] PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical interconnection. Because it is manufactured using electronic printing technology, it is called a "printed" circuit board. PCB coating refers to printing information such as date, model, internal code, one-dimensional barcode, and two-dimensional code on the surface of the circuit board to facilitate later inspection and repair.

[0003] In a Chinese patent for a PCB board inkjet printing centering and clamping mechanism (patent number: CN221954128U), the device includes a worktable. A first support frame is fixedly connected to the middle of the upper part of the inner wall of the worktable. A bidirectional threaded rod is provided inside the first support frame. A first threaded sleeve is fitted on the outer wall of the bidirectional threaded rod. A first clamping plate is fixedly connected to the upper end of the first threaded sleeve. A pressure sensor is provided on the inner wall of the first clamping plate. A rubber plate is fixedly connected to the outer wall of one side of the first clamping plate. This device can achieve the centering and clamping function by setting the bidirectional threaded rod and the first clamping plate. At the same time, by setting the first unidirectional threaded rod, the second unidirectional threaded rod, and the second clamping plate, it can be used for both large and small PCB boards. It can adapt to PCB boards of various sizes and shapes, including small, large, and non-standard PCB boards, thereby improving the flexibility and applicability of the production line. However, this device does not have the function of flipping the PCB board, which means that when performing double-sided inkjet printing on the PCB board, it is necessary to disassemble, reinstall, and clamp the PCB board again. The operation steps are cumbersome, waste manpower, and affect the efficiency of inkjet printing on the PCB board. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a PCB board inkjet printing centering and clamping mechanism. By setting a flipping clamping mechanism, it achieves the function of clamping the PCB board while simultaneously flipping it over. This solves the problem in the background art where the device does not have the function of flipping the PCB board, which requires the PCB board to be disassembled and reinstalled for double-sided inkjet printing, resulting in cumbersome operation steps, wasted manpower, and reduced efficiency in PCB board inkjet printing.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a PCB board inkjet printing centering clamping mechanism, including: an inkjet printing groove, with support legs fixedly connected to both ends of the bottom of the inkjet printing groove, and two symmetrically arranged flipping clamping mechanisms fixedly inserted into the side walls of both sides of the support legs, and a gas purification mechanism connected to the bottom of the inkjet printing groove.

[0006] The flipping clamping mechanism includes a cylindrical shell fixedly inserted into the side wall of the inkjet slot. A circular cover is inserted into and rotatably connected to the inner side wall of the cylindrical shell. A telescopic cylinder is fixedly connected to the outer side wall of the cylindrical shell. The driving end of the telescopic cylinder passes through the cylindrical shell and is rotatably connected to a moving block via a rotating component. Two symmetrically arranged pull rods are hinged to both sides of the moving block. A support rod is fixedly connected to the inner wall of the circular cover. Two symmetrically arranged L-shaped frames are sleeved on and slidably connected to the support rod. One end of each of the two pull rods is hinged to one end of each of the two L-shaped frames. A slot is opened on the side wall of the circular cover. One end of each of the two L-shaped frames passes through the slot and is fixedly connected to two symmetrically arranged clamping plates. A rotating mechanism is provided on the cylindrical shell. One end of the rotating mechanism is fixedly connected to the circular cover.

[0007] Preferably, the rotating mechanism includes a slot box that communicates with the upper side wall of the cylindrical shell, a stepper motor is fixedly connected to the front end of the slot box, the main shaft end of the stepper motor passes through the slot box and is fixedly connected to a worm gear, a worm wheel ring is fixedly connected to the outer side wall of the cylindrical shell, and the worm gear is meshed with the worm wheel ring.

[0008] Preferably, the outer wall of the circular cover is fixedly connected to the inner wall of the worm gear ring by welding.

[0009] Preferably, the gas purification mechanism includes an air intake port connected to the bottom of the inkjet slot, an exhaust fan connected to the lower end of the air intake port, a gas purification tank connected to the lower end of the exhaust fan, and an air outlet connected to the lower end of the gas purification tank.

[0010] Preferably, the inner sidewall of the cylindrical shell has a circular hole, and the circular hole is rotatably connected to the outer sidewall of the cylindrical shell through a bearing ring.

[0011] Preferably, the side wall of the transverse section of the L-shaped frame is provided with a sliding hole, and the support rod is slidably connected to the sliding hole.

[0012] Preferably, a control switch is fixedly connected to one side of the inkjet printing slot, and the control switch is electrically connected to the flipping clamping mechanism and the gas purification mechanism respectively.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. In this utility model, by setting a flipping clamping mechanism, the two ends of the PCB board are placed horizontally between two sets of clamping plates. When the two telescopic cylinders are activated to retract synchronously, the moving block can be moved, which in turn moves the two pull rods to swing. At this time, the two L-shaped frames can be moved towards each other on the support rod, which in turn moves the two clamping plates towards each other until the two sides of the PCB board are clamped and fixed. The clamping is stable and convenient. Secondly, when the stepper motor is started, it can drive the worm gear to rotate. Since the worm gear meshes with the worm wheel ring, it can drive the circular cover to rotate, which in turn drives the PCB board clamped between the two clamping plates to rotate, realizing the flipping operation of the PCB board. The inkjet printing process is more convenient and the work efficiency is improved.

[0015] 2. In this utility model, by setting up a gas purification mechanism, when the PCB board is being inkjet printed, the exhaust fan is started to work, and the odor generated during inkjet printing is introduced into the gas purification tank through the air intake to purify the gas, and then discharged from the air outlet, thus achieving the effect of purifying the gas and making it more environmentally friendly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional sectional view of the present invention.

[0019] Figure 3 For the present utility model Figure 2 A magnified structural diagram at point A.

[0020] Figure 4 This is a three-dimensional structural diagram of the flipping clamping mechanism of this utility model.

[0021] Figure 5 This is a cross-sectional structural diagram of the flipping clamping mechanism of this utility model.

[0022] Explanation of reference numerals in the attached diagram: 1-Inkjet printing slot, 2-Leg bracket, 3-Cylindrical shell, 4-Circular cover shell, 5-Telescopic cylinder, 6-Moving block, 7-Pull rod, 8-Support rod, 9-L-shaped frame, 10-Slot opening, 11-Clamping plate, 12-Slot box, 13-Stepper motor, 14-Worm gear, 15-Worm wheel ring, 16-Air intake port, 17-Exhaust fan, 18-Gas purification tank, 19-Air outlet, 20-Control switch. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] like Figures 1 to 5 As shown, this embodiment provides a PCB board inkjet printing centering and clamping mechanism. This device is located below the inkjet printer and is used for centering and clamping when printing on the PCB board. It includes: an inkjet printing slot 1, with support legs 2 fixedly connected to both ends of the bottom of the inkjet printing slot 1. Two symmetrically arranged flip clamping mechanisms are fixedly inserted into the side walls of both sides of the support legs 2. The electrical equipment on the two flip clamping mechanisms is synchronously controlled by a synchronous controller, which is the prior art. A gas purification mechanism is connected to the bottom of the inkjet printing slot 1.

[0026] The flipping clamping mechanism includes a cylindrical shell 3 fixedly inserted into the side wall of the inkjet slot 1. A circular cover 4 is inserted into and rotatably connected to the inner side wall of the cylindrical shell 3. A circular hole is opened on the inner side wall of the cylindrical shell 3. The circular hole is rotatably connected to the outer side wall of the circular cover 4 through a bearing ring, making the rotation of the circular cover 4 more stable. A telescopic cylinder 5 is fixedly connected to the outer side wall of the cylindrical shell 3. The drive end of the telescopic cylinder 5 passes through the cylindrical shell 3 and is rotatably connected to a moving block 6 through a rotating component. Two symmetrically arranged pull rods 7 are hinged to both sides of the moving block 6. The inner wall of the circular cover 4... A support rod 8 is fixedly connected, and two symmetrically arranged L-shaped frames 9 are sleeved and slidably connected on the support rod 8. The side wall of the transverse section of the L-shaped frame 9 has a sliding hole, and the support rod 8 is slidably connected to the sliding hole to facilitate the displacement of the L-shaped frame 9 on the support rod 8. One end of the two pull rods 7 is hinged to one end of the two L-shaped frames 9 respectively. The side wall of the circular cover 4 has a slot 10, and one end of the two L-shaped frames 9 passes through the slot 10 and is fixedly connected to two symmetrically arranged clamping plates 11. The cylindrical shell 3 is provided with a rotating mechanism, and one end of the rotating mechanism is fixedly connected to the circular cover 4.

[0027] A control switch 20 is fixedly connected to one side of the inkjet slot 1. The control switch 20 is electrically connected to the flipping clamping mechanism and the gas purification mechanism respectively. This means that all electrical equipment of this device is electrically connected to the control switch 20. The circuit involved is existing technology, which can be fully implemented by those skilled in the art, and there is no need to elaborate.

[0028] The principle of this embodiment is as follows: When the PCB board needs to be clamped during the inkjet printing process, the two ends of the PCB board are placed horizontally between the two sets of clamping plates 11. The two telescopic cylinders 5 are activated to retract synchronously, which can pull the moving block 6 to move, and then pull the two pull rods 7 to swing. At this time, the two L-shaped frames 9 can be pulled to move towards each other on the support rod 8, which in turn drives the two clamping plates 11 to move towards each other until the two sides of the PCB board are clamped and fixed, making the clamping stable and convenient.

[0029] Example 2:

[0030] like Figure 4 and Figure 5 As shown, while retaining all the technical features of the specific embodiment one, in this embodiment: the rotating mechanism includes a slot box 12 that is connected to the upper side wall of the cylindrical shell 3. A stepper motor 13 is fixedly connected to the front end of the slot box 12. The main shaft end of the stepper motor 13 passes through the slot box 12 and is fixedly connected to a worm gear 14. A worm wheel ring 15 is fixedly connected to the outer side wall of the circular shell 4. The worm wheel ring 15 refers to a ring with a worm pattern on its outer ring. The outer side wall of the circular shell 4 and the inner side wall of the worm wheel ring 15 are fixedly connected by welding, and the connection is reliable. The worm gear 14 and the worm wheel ring 15 are meshed together.

[0031] The principle of this embodiment is as follows: When the stepper motor 13 is started, it can drive the worm gear 14 to rotate. Since the worm gear 14 meshes with the worm wheel ring 15, it can drive the round cover 4 to rotate, which in turn drives the PCB board clamped between the two clamping plates 11 to rotate, realizing the flipping operation of the PCB board, making inkjet printing more convenient and improving work efficiency.

[0032] Example 3:

[0033] like Figure 3 As shown, while retaining all the technical features of specific embodiment one and / or embodiment two, in this embodiment: the gas purification mechanism includes an air intake 16 connected to the bottom of the inkjet slot 1, an exhaust fan 17 connected to the lower end of the air intake 16, a gas purification tank 18 connected to the lower end of the exhaust fan 17, the gas purification tank 18 includes a tank body, a filter element assembly installed in the tank body (which is prior art), and an air outlet 19 connected to the lower end of the gas purification tank 18.

[0034] The principle of this embodiment is as follows: When the PCB board is inkjet printed, the exhaust fan 17 is started to work, and the odor generated during inkjet printing is introduced into the gas purification tank 18 through the air intake 16 to purify the gas, and then discharged through the air outlet 19, thus achieving the effect of purifying the gas and making it more environmentally friendly.

[0035] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A PCB board inkjet printing alignment and clamping mechanism, characterized in that, include: The inkjet printing slot (1) has two fixedly connected support legs (2) at both ends of its bottom. Two symmetrically arranged flip-clamping mechanisms are fixedly inserted into the side walls of the support legs (2). A gas purification mechanism is connected to the bottom of the inkjet printing slot (1). The flipping clamping mechanism includes a cylindrical shell (3) fixedly inserted into the side wall of the inkjet slot (1). A circular cover (4) is inserted into and rotatably connected to the inner side wall of the cylindrical shell (3). A telescopic cylinder (5) is fixedly connected to the outer side wall of the cylindrical shell (3). The driving end of the telescopic cylinder (5) passes through the cylindrical shell (3) and is rotatably connected to a moving block (6) via a rotating component. Two symmetrically arranged pull rods (7) are hinged to both sides of the moving block (6). The inner wall of the circular cover (4) is fixedly connected to... There is a support rod (8), on which two symmetrically arranged L-shaped frames (9) are sleeved and slidably connected. One end of the two pull rods (7) is respectively hinged to one end of the two L-shaped frames (9). The side wall of the circular cover (4) is provided with a slot (10). One end of the two L-shaped frames (9) passes through the slot (10) and is fixedly connected to two symmetrically arranged clamps (11). The cylindrical shell (3) is provided with a rotating mechanism. One end of the rotating mechanism is fixedly connected to the circular cover (4).

2. The PCB board inkjet printing centering and clamping mechanism as described in claim 1, characterized in that, The rotating mechanism includes a slot (12) connected to the upper side wall of the cylindrical shell (3). A stepper motor (13) is fixedly connected to the front end of the slot (12). The main shaft of the stepper motor (13) passes through the slot (12) and is fixedly connected to a worm (14). A worm wheel ring (15) is fixedly connected to the outer side wall of the circular cover (4). The worm (14) and the worm wheel ring (15) are meshed together.

3. The PCB board inkjet printing centering and clamping mechanism as described in claim 2, characterized in that, The outer wall of the circular cover (4) is fixedly connected to the inner wall of the worm gear ring (15) by welding.

4. The PCB board inkjet printing centering and clamping mechanism as described in claim 1, characterized in that, The gas purification mechanism includes an air intake (16) connected to the bottom of the inkjet slot (1), a blower (17) connected to the lower end of the air intake (16), a gas purification tank (18) connected to the lower end of the blower (17), and an air outlet (19) connected to the lower end of the gas purification tank (18).

5. The PCB board inkjet printing centering and clamping mechanism as described in claim 1, characterized in that, The inner sidewall of the cylindrical shell (3) has a circular hole, which is rotatably connected to the outer sidewall of the circular cover shell (4) through a bearing ring.

6. The PCB board inkjet printing centering and clamping mechanism as described in claim 1, characterized in that, The L-shaped frame (9) has a sliding hole on the side wall of the transverse section, and the support rod (8) is slidably connected to the sliding hole.

7. The PCB board inkjet printing centering and clamping mechanism as described in claim 1, characterized in that, A control switch (20) is fixedly connected to one side of the inkjet slot (1), and the control switch (20) is electrically connected to the flipping clamping mechanism and the gas purification mechanism respectively.

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