Circuit board glue injection device

Abstract

The utility model discloses a circuit board glue injection device which comprises a cabinet body, a lead screw is rotationally connected to the rear wall of the upper portion of the cabinet body, one end of the lead screw penetrates through the rear wall of the cabinet body to be connected with a driving motor, the surface of the outer wall of the lead screw is in threaded connection with a moving block, and a limiting rod penetrates through the interior of the moving block. A sliding way is formed in the surface of the moving block, a fixing plate is arranged below the fixing plate, one end of the fixing plate is fixedly connected with the rear wall of the cabinet body, a sliding block is slidably connected to the interior of the sliding way, and a sliding rod is fixed to the lower portion of the sliding block; a snakelike sliding groove is formed in the surface of the outer wall of the fixing plate, and a glue injection head is arranged at the end, penetrating through the snakelike sliding groove, of the sliding rod.

Description

Technical Field

[0001] The utility model relates to the technical field of glue injection devices, in particular to a circuit board glue injection device. Background Art

[0002] Circuit board, also known as circuit board, is an important part of modern electrical devices. In the process of circuit board processing, glue injection device is needed to inject glue on the surface of circuit board. Fully automatic glue dispensing machine is widely used in semiconductor, electronic components and LCD manufacturing and other fields. Its principle is to press the glue into the feed pipe connected to the piston through compressed air, which has a certain fixing effect. After solidification, the glue has a certain waterproof performance, which can protect the circuit board.

[0003] The utility model patent with announcement number: CN219597181U discloses a high-efficiency glue injection machine, including a base plate, a slide rail is provided at the middle position of the top surface of the base plate, and a connecting block is provided on the slide rail, a receiving plate is provided at the top of the connecting block, and baffles are provided on both side surfaces of the receiving plate, a side plate is provided on one side surface of the baffle, and a positioning screw is penetrated through the top surface of the side plate, a pressure block is provided at one end of the positioning screw, support plates are provided on the top surface of the base plate located on both sides of the slide rail, and an electric slide rail is installed between the support plates, an electric slider is installed on the electric slide rail, and a mounting plate is provided on the front end surface of the electric slider, a cylinder is installed on the top surface of the mounting plate, and the output end of the cylinder penetrates the mounting plate and is fixedly connected to a fixing plate, and a glue injector body is provided on the bottom surface of the fixing plate.

[0004] However, there are still certain shortcomings in the above technical solution: in the above technical solution, the glue injector body on the bottom surface of the fixed plate is moved to perform glue injection processing on the workpiece on the top surface of the receiving plate. During processing, the glue injector can only inject glue in a straight line, and the injected colloid can only be dispersed to both sides, which may easily cause the colloid to be not dispersed in time and cause uneven surface accumulation. When a large amount of colloid needs to be injected, due to the coagulation of the colloid, it may not be able to extend and flow to the corners of the circuit board, resulting in uneven glue injection. Utility Model Content

[0005] The purpose of the utility model is to provide a circuit board glue injection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board glue injection device, wherein a lead screw is rotatably connected to the top of the cabinet, one end of the lead screw is connected to the output end of the motor, a moving block is threadedly connected to the outer wall surface of the lead screw, a limit rod passes through the inside of the moving block, and one end of the limit rod is fixedly connected to the rear wall of the cabinet, a slideway is provided on the surface of the moving block, a fixed plate is provided below the moving block, one end of the fixed plate is fixedly connected to the rear wall of the cabinet, a slider is slidably connected to the inside of the slideway, a sliding rod is rotatably connected to the bottom of the slider, a serpentine groove is provided on the outer wall surface of the fixed plate, and a glue injection head is provided at one end of the sliding rod passing through the serpentine groove.

[0007] By adopting the above technical solution, when in use, the serpentine groove is opened on the fixed plate to enable the glue injection head to move left and right in a serpentine manner under the drive of the lead screw, thereby increasing the glue injection area and making the colloid flow more evenly.

[0008] Preferably, the glue injection head is connected to a delivery pipe, one end of which is connected to the raw material box, and the colloid in the raw material box is delivered to the glue injection head through the delivery pipe.

[0009] Preferably, an air pump is fixedly provided on one outer wall of the cabinet, one side of the air pump is connected to an air pipe, and one end of the air pipe is connected to an air blowing head. The air pump is provided, and the dust on the circuit board can be blown away by the air blowing head before glue injection to increase the adhesion of the glue.

[0010] Preferably, a clamping device is provided inside the cabinet, and the clamping device includes a bidirectional lead screw, which is rotatably connected to the cabinet, and one end of the bidirectional lead screw is connected to the output end of the motor, a movable block is threadedly connected to the bidirectional lead screw, a splint is fixedly connected to the movable block, and the splint is arranged on a processing table inside the cabinet, and by arranging the bidirectional lead screw, the splints can be brought close to each other or the circuit board can be fixed for glue injection.

[0011] Preferably, a storage box is provided below the cabinet body, a cabinet door is hinged on the storage box, and a handle 21 is installed on the cabinet door. By providing the cabinet door, storage can be convenient.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the circuit board glue injection device,

[0013] (1) By setting the glue injection head, the serpentine track and the slider to cooperate with each other, the glue sprayed by the glue spray head on the processing table is in the shape of a serpentine line and is evenly injected on the circuit board. The serpentine line-shaped glue can be quickly and evenly spread on the circuit board, which is shorter than the traditional straight line spraying. The glue spreads more evenly. After solidification, the glue has a certain waterproof performance, thereby achieving a protective effect on the circuit board;

[0014] (2) By setting up an air gun mechanism, the dust on the surface of the circuit board can be blown away with an air gun before the circuit board is processed. There is no dust on the surface of the circuit board when spraying glue, which increases the viscosity between the circuit board and the colloid, so that the colloid sprayed on the circuit board is tightly combined with the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a side view of the structure of the utility model;

[0017] Figure 3 This is a side view schematic diagram of the structure of the glue injection head of the utility model;

[0018] Figure 4 It is a bottom view of the structure of the fixed plate of the utility model.

[0019] In the figure: 1, cabinet body, 2, screw, 3, limit rod, 4, moving block, 5, fixed plate, 6, slide, 7, slider, 8, slide rod, 9, slide groove, 10, injection head, 11, delivery pipe, 12, raw material box, 13, blowing head, 14, air pipe, 15, air pump, 16, two-way screw, 17, splint, 18, motor, 19, movable block, 20, cabinet door, 21, handle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a circuit board glue injection device, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown,

[0022] A lead screw 2 is rotatably connected to the top of the cabinet 1, one end of the lead screw 2 is connected to the output end of the motor, a moving block 4 is threadedly connected to the outer wall surface of the lead screw 2, a limit rod 3 is passed through the inside of the moving block 4, and one end of the limit rod 3 is fixedly connected to the rear wall of the cabinet 1, a slideway 6 is provided on the surface of the moving block 4, a fixed plate 5 is provided below the moving block 4, one end of the fixed plate 5 is fixedly connected to the rear wall of the cabinet 1, a slider 7 is slidably connected to the inside of the slideway 6, a slide rod 8 is rotatably connected to the bottom of the slide rod 7, a serpentine slide groove 9 is provided on the outer wall surface of the fixed plate 5, and a glue injection head 10 is provided at one end of the slide rod 8 passing through the serpentine slide groove 9.

[0023] Specifically, the part where the slide rod 8 contacts the serpentine groove 9 is provided with a plurality of groups of balls to reduce the resistance of the slide rod 8 when sliding in the serpentine groove 9. The glue injection head 10 is installed on the electric push rod, and the glue injection distance between the glue injection head 10 and the circuit board can be controlled by adjusting the length of the electric push rod.

[0024] See also Figure 1-3 Furthermore, an air pump 15 is fixedly provided on an outer wall of one side of the cabinet 1 , one side of the air pump 15 is connected to an air pipe 14 , and one end of the air pipe 14 is connected to an air blowing head 13 .

[0025] See also Figure 1-3 Furthermore, a clamping device is provided inside the cabinet 1, and the clamping device includes a bidirectional lead screw 16, which is rotatably connected to the cabinet 1, and one end of the bidirectional lead screw 16 is connected to the output end of the motor 18, and a movable block 19 is threadedly connected to the bidirectional lead screw 16, and a clamping plate 17 is fixedly connected to the movable block 19, and the clamping plate 17 is arranged on the processing table inside the cabinet 1.

[0026] See also Figure 1 A storage box is provided below the cabinet 1, a cabinet door 20 is hingedly connected to the storage box, and a handle 21 is installed on the cabinet door 20.

[0027] Specifically, a roller group is provided at the bottom of the movable block 19, which can reduce friction when sliding under the drive of the bidirectional lead screw 16.

[0028] See also Figure 1 A storage box is provided below the cabinet body 1 , a cabinet door 20 is hingedly connected to the storage box, and a handle 21 is installed on the cabinet door 19 .

[0029] Working principle: When the circuit board glue injection device is used, when the circuit board needs to be glued, the two-way screw 16 is driven to rotate by the rotation of the motor 18, and then the movable block 19 on the two-way screw 16 is driven to slide, and then the clamping plate 17 on the movable block 19 is driven to slide, so that the clamping plate 17 fixes the circuit board, and the distance between the glue injection head 10 and the circuit board is adjusted. If the circuit board needs to be dusted, the air pump 15 is turned on, and air is sent to the blowing head 13 through the air pipe 14 to blow away the dust on the surface of the circuit board, and then the driving motor behind the cabinet is started. The machine drives the moving block 4 to slide on the screw 2. When the moving block 4 moves horizontally, it will drive the slide bar 8 to move inside the slide groove 9, so that the slide bar 8 and the glue injection head 10 move in a serpentine manner according to the shape of the slide groove 9. At the same time, the slider 7 will slide inside the slideway 6 to play a guiding role, and then drive the slider 7 to slide in the serpentine slide groove 9. At the same time, the glue injection mechanism switch is started to transport the colloid from the raw material box 12 to the glue injection head 10 through the conveying pipe 11. Driven by the slider 7, the glue injection head 10 moves in a serpentine manner in the serpentine slide groove 9 to inject glue.

[0030] This completes the entire operation, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circuit board glue injection device, comprising a cabinet (1), characterized in that: A lead screw (2) is rotatably connected to the top of the cabinet (1), one end of the lead screw (2) is connected to the output end of the motor, a moving block (4) is threadedly connected to the outer wall surface of the lead screw (2), a limit rod (3) is passed through the inside of the moving block (4), and one end of the limit rod (3) is fixedly connected to the rear wall of the cabinet (1), a slideway (6) is provided on the surface of the moving block (4), a fixed plate (5) is provided below the moving block (4), one end of the fixed plate (5) is fixedly connected to the rear wall of the cabinet (1), a slider (7) is slidably connected inside the slideway (6), and a sliding rod (8) is rotatably connected to the bottom of the sliding rod (7), a serpentine slide groove (9) is provided on the outer wall surface of the fixed plate (5), and a glue injection head (10) is provided at one end of the sliding rod (8) passing through the serpentine slide groove (9).

2. A circuit board glue injection device according to claim 1, characterized in that: The glue injection head (10) is connected to a delivery pipe (11), and one end of the delivery pipe (11) is connected to a raw material box (12).

3. A circuit board glue injection device according to claim 1, characterized in that: An air pump (15) is fixedly arranged on an outer wall of one side of the cabinet (1), one side of the air pump (15) is connected to an air pipe (14), and one end of the air pipe (14) is connected to an air blowing head (13).

4. A circuit board glue injection device according to claim 1, characterized in that: A clamping device is provided inside the cabinet (1), and the clamping device comprises a bidirectional lead screw (16), the bidirectional lead screw (16) is rotatably connected to the cabinet (1), and one end of the bidirectional lead screw (16) is connected to the output end of the motor (18), a movable block (19) is threadedly connected to the bidirectional lead screw (16), a clamping plate (17) is fixedly connected to the movable block (19), and the clamping plate (17) is arranged on a processing table inside the cabinet (1).

5. A circuit board glue injection device according to claim 1, characterized in that: A storage box is arranged below the cabinet body (1), a cabinet door (20) is hingedly connected to the storage box, and a handle (21) is installed on the cabinet door (20).

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