Dispensing assembly for circuit board

Abstract

The utility model belongs to the technical field of circuit board dispensing, and particularly relates to a circuit board dispensing assembly which comprises a base and supporting rods, the supporting rods are fixedly connected to the four corners of the upper side of the base, and the upper ends of the supporting rods are fixedly connected with a top plate. When the adhesive dispensing assembly for the circuit board is used, the circuit board is firstly placed on the base, the adhesive dispensing position of the circuit board is located under the adhesive dispensing head, then rotating handles at the left end and the right end are rotated, a movable plate is driven to move, and meanwhile a limiting rod and a clamping plate move together till the clamping plate moves to the left end and the right end of the circuit board; a circuit board is clamped and fixed, then an output shaft of a telescopic piece is started to stretch out to drive a dispensing head to move downwards to the upper end of the circuit board for dispensing work, after dispensing is completed, the dispensing head is lifted to a corresponding position again, and then an output shaft of a motor is started to rotate to drive a scraper to rotate; and when the scraping plate rotates to the lower end of the dispensing head, redundant glue is scraped.

Description

Technical Field

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

[0002] Glue dispensing machine is also called glue coating machine, glue dripping machine, glue spraying machine, glue filling machine, etc. It is specially used to control fluids. It is an automated machine that drips and applies fluids on the surface or inside of products. It can achieve three-dimensional and four-dimensional path dispensing, precise positioning, precise glue control, no drawing, no leakage, and no dripping. Glue dispensing machine is mainly used for glue, paint and other liquids in product processes to accurately point, inject, apply and drip at the precise position of each product. It can be used to achieve dotting, drawing lines, circles or arcs.

[0003] When dispensing glue on a circuit board, most existing dispensing machines use a cylinder to adjust the dispensing structure, but errors are prone to occur and the dispensing structure cannot be fine-tuned accurately, affecting the dispensing operation.

[0004] As disclosed in Chinese patent CN218251193U, a dispensing machine for circuit boards, by setting a first adjusting component and turning on the first motor, the first motor drives the first screw rod to rotate on the inner side of the first bearing seat, so that the position of the first threaded block can be adjusted, and the first threaded block drives the mounting plate to be adjusted through the connecting block, so as to facilitate the adjustment of the front and rear position of the dispensing head installed on the inner side of the mounting frame, and by setting a second adjusting component and turning on the second motor, the second motor drives the second screw rod to rotate on the inner side of the second bearing seat, so that the position of the second threaded block on the second screw rod can be adjusted, thereby the left and right position of the dispensing head at the bottom of the second threaded block can be adjusted, and the position of the dispensing head can be fine-tuned by the first adjusting component and the second adjusting component, so that the dispensing head can perform dispensing operations on the circuit board more accurately.

[0005] However, after the glue dispensing machine dispenses glue, excess glue will remain at the lower end of the glue dispensing head, and the glue dispensing machine is not provided with a structure for cleaning the excess glue, so it is not convenient to clean the excess glue.

[0006] For this reason, we urgently need to provide a kind of circuit board dispensing component with cleaning function. Utility Model Content

[0007] The purpose of the utility model is to provide a glue dispensing assembly for a circuit board, so as to solve the problem that the glue dispensing machine proposed in the above background technology will have excess glue remaining at the lower end of the glue dispensing head after glue dispensing, and no structure for cleaning the excess glue is provided on the glue dispensing machine, making it inconvenient to clean the excess glue.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a glue dispensing assembly for a circuit board, comprising a base and a support rod, wherein the support rod is fixedly connected to the four upper corners of the base, the upper end of the support rod is fixedly connected to a top plate, the upper ends of the base and the top plate are connected to a glue dispensing mechanism, the glue dispensing mechanism comprises a glue dispensing unit and a drying unit, the glue dispensing unit is arranged at the upper ends of the base and the top plate, and the drying unit is arranged at the upper end of the top plate.

[0009] The dispensing unit includes a telescopic part, a dispensing head, a connecting rod, a motor, a scraper, a fixed plate, a bearing, a threaded rod, a rotating handle, a movable plate, a limit rod and a clamping plate. The telescopic part is fixedly connected to the upper middle position of the top plate, the dispensing head is fixedly connected to the lower end of the output shaft of the telescopic part, the connecting rod is fixedly connected to the lower right end of the top plate, the motor is fixedly connected to the lower end of the connecting rod, the scraper is fixedly connected to the lower end of the output shaft of the motor, the fixed plate is fixedly connected to the upper left and right ends of the base, the bearing is fixedly connected to the inner middle position of the fixed plate, the threaded rod is fixedly connected to the inner side of the bearing, the rotating handle is fixedly connected to one end of the threaded rod away from the bearing, the movable plate is connected to the outer end of the threaded rod, the limit rod is fixedly connected to the front and rear ends of the movable plate close to the fixed plate, and the clamping plate is fixedly connected to one end of the limit rod away from the movable plate.

[0010] A further improvement is that the outer upper end of the scraper is slidably connected to the lower end of the glue dispensing head, and the output shaft of the motor is started to rotate to drive the scraper to rotate. When the scraper rotates to the lower end of the glue dispensing head, the excess glue at the lower end of the glue dispensing head can be scraped off.

[0011] A further improvement is that a limiting hole is opened in the middle of the front and rear ends of the fixing plate, and the outer side of the limiting rod is slidably connected to the inner side of the limiting hole, so that when the limiting rod moves, it can only slide along the inner side of the limiting hole.

[0012] A further improvement is that a threaded hole is opened in the middle position inside the movable plate, and the outer side of the threaded rod is threadedly connected to the inner side of the threaded hole, so that when the rotating handle is turned to drive the threaded rod in the threaded hole to rotate, the movable plate located outside the threaded rod can be driven to move.

[0013] A further improvement is that a rubber pad is fixedly connected to the side of the clamping plate away from the limit rod, so that after the circuit board to be glued is placed on the upper side of the base, when the clamping plate is moved to the left and right ends of the circuit board to clamp the circuit board, the rubber pad on the side of the clamping plate away from the limit rod will contact the left and right sides of the circuit board, so that the circuit board can be clamped and fixed more firmly.

[0014] A further improvement is that the drying unit includes a hot air blower, an air duct and an air outlet louver, the hot air blower is fixedly connected to the upper left end of the top plate, the air duct is fixedly connected to the left end of the hot air blower, and the air outlet louver is fixedly connected to the end of the air duct away from the hot air blower.

[0015] A further improvement is that the air outlet direction of the air outlet scoop is toward the middle position of the upper side of the base, so that after gluing the circuit board between the clamping plates, the hot air can be discharged into the air duct by starting the hot air blower and then blown out from the air outlet scoop to the circuit board at the upper end of the base, so that the glue-applied area on the circuit board can be quickly dried.

[0016] In summary, the present application discloses a glue dispensing assembly for a circuit board.

[0017] This technical solution starts the telescopic part to drive the dispensing head to move up to the corresponding position, and then starts the motor to rotate its output shaft to drive the scraper to rotate. When the scraper rotates to the lower end of the dispensing head, the excess glue at the lower end of the dispensing head can be scraped off to prevent the excess glue from affecting the next dispensing work.

[0018] Furthermore, after gluing the circuit board between the clamping plates, the hot air blower is started to discharge hot air into the air duct and then blown out from the air outlet to the circuit board at the upper end of the base, so that the glue-doped area on the circuit board can be quickly dried. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a bottom view of the main structure of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the fixed plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the drying unit of the utility model.

[0023] In the figure: 1, base; 2, support rod; 3, top plate; 401, telescopic part; 402, dispensing head; 403, connecting rod; 404, motor; 405, scraper; 406, fixed plate; 407, bearing; 408, threaded rod; 409, rotating handle; 410, moving plate; 411, limit rod; 412, clamping plate; 501, hot air blower; 502, air duct; 503, air outlet hopper. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A glue dispensing assembly for a circuit board includes a base 1 and a support rod 2. The support rod 2 is fixedly connected to the four upper corners of the base 1. The upper end of the support rod 2 is fixedly connected to a top plate 3. The upper ends of the base 1 and the top plate 3 are connected to a glue dispensing mechanism. The glue dispensing mechanism includes a glue dispensing unit and a drying unit. The glue dispensing unit is arranged at the upper ends of the base 1 and the top plate 3, and the drying unit is arranged at the upper end of the top plate 3.

[0028] The glue dispensing unit includes a telescopic member 401, a glue dispensing head 402, a connecting rod 403, a motor 404, a scraper 405, a fixed plate 406, a bearing 407, a threaded rod 408, a rotating handle 409, a movable plate 410, a limit rod 411 and a clamping plate 412. The telescopic member 401 is fixedly connected to the middle position of the upper side of the top plate 3, the glue dispensing head 402 is fixedly connected to the lower end of the output shaft of the telescopic member 401, the connecting rod 403 is fixedly connected to the lower right end of the top plate 3, the motor 404 is fixedly connected to the lower end of the connecting rod 403, the scraper 405 is fixedly connected to the lower end of the output shaft of the motor 404, and the outer upper end of the scraper 405 is slidably connected to the lower end of the glue dispensing head 402. Therefore, after the connecting rod 403 performs the dispensing work, the telescopic part 401 is started to drive the dispensing head 402 to move up to the corresponding position, and then the motor 404 is started to rotate its output shaft to drive the scraper 405 to rotate. When the scraper 405 rotates to the lower end of the dispensing head 402, the excess glue at the lower end of the dispensing head 402 can be scraped off to prevent the excess glue from affecting the next dispensing work.

[0029] The fixed plate 406 is fixedly connected to the left and right ends of the upper side of the base 1, the bearing 407 is fixedly connected to the middle position of the fixed plate 406, the threaded rod 408 is fixedly connected to the inner side of the bearing 407, the rotating handle 409 is fixedly connected to the end of the threaded rod 408 away from the bearing 407, the movable plate 410 is connected to the outer end of the threaded rod 408, the limiting rod 411 is fixedly connected to the front and rear ends of the movable plate 410 close to the fixed plate 406, and the clamping plate 412 is fixedly connected to the end of the limiting rod 411 away from the movable plate 410. A limiting hole is provided at the middle position of the front and rear ends of the fixed plate 406, and the outer side of the limiting rod 411 is slidably connected to the inner side of the limiting hole. Therefore, when the limiting rod 411 moves, it can only slide along the inner side of the limiting hole, thereby limiting the movement of the movable plate 410 and the clamping plate 412.

[0030] A threaded hole is provided in the middle of the movable plate 410, and the outer side of the threaded rod 408 is threadedly connected to the inner side of the threaded hole. Therefore, when the rotating handle 409 is turned to drive the threaded rod 408 to rotate in the threaded hole, the movable plate 410 located at the outer side of the threaded rod 408 can be driven to move, thereby driving the limiting rod 411 to move along the inner side of the limiting hole, and driving the clamping plate 412 to move together.

[0031] A rubber pad is fixedly connected to the side of the clamping plate 412 away from the limiting rod 411. Therefore, after the circuit board to be glued is placed on the upper side of the base 1, when the clamping plate 412 is moved to the left and right ends of the circuit board to clamp the circuit board, the rubber pad on the side of the clamping plate 412 away from the limiting rod 411 will contact the left and right sides of the circuit board, so that the circuit board can be clamped and fixed more firmly.

[0032] Embodiment 2:

[0033] On the basis of Example 1: the drying unit includes a hot air blower 501, an air duct 502 and an air outlet 503, the hot air blower 501 is fixedly connected to the upper left end of the top plate 3, the air duct 502 is fixedly connected to the left end of the hot air blower 501, and the air outlet 503 is fixedly connected to the end of the air duct 502 away from the hot air blower 501.

[0034] The air outlet direction of the air outlet 503 is toward the middle position of the upper side of the base 1. Therefore, after the circuit board between the clamping plates 412 is glued, the hot air blower 501 is started to discharge hot air into the air duct 502 and then blown out from the air outlet 503 to the circuit board on the upper end of the base 1, so that the glued part on the circuit board can be quickly dried.

[0035] Working principle: When in use, first place the circuit board on the base 1, and the glue dispensing part of the circuit board is located directly below the glue dispensing head 402, then turn the rotating handles 409 at the left and right ends to drive the moving plate 410 to move while moving the limit rod 411 and the clamping plate 412 together, until the clamping plate 412 moves to the left and right ends of the circuit board, clamp the circuit board, then start the telescopic member 401, and its output shaft extends to drive the glue dispensing head 402 to move down to the upper end of the circuit board for glue dispensing. After the glue dispensing is completed, The glue dispensing head 402 is lifted up to the corresponding position again, and then the motor 404 is started to rotate its output shaft to drive the scraper 405 to rotate. When the scraper 405 rotates to the lower end of the glue dispensing head 402, the excess glue is scraped off, and then the hot air blower 501 is started to discharge the hot air into the air duct 502 and then blown out from the air outlet 503 to the circuit board at the upper end of the base 1, so as to quickly dry the glue dispensing area on the circuit board. After the glue is dried, the handle 409 is reversed to drive the clamping plate 412 away from the circuit board, and then the circuit board is removed.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A glue dispensing assembly for a circuit board, comprising a base (1) and a support rod (2), wherein the support rod (2) is fixedly connected to the four upper corners of the base (1), characterized in that: The upper end of the support rod (2) is fixedly connected to the top plate (3), the upper ends of the base (1) and the top plate (3) are connected to a glue dispensing mechanism, the glue dispensing mechanism comprises a glue dispensing unit and a drying unit, the glue dispensing unit is arranged at the upper ends of the base (1) and the top plate (3), and the drying unit is arranged at the upper end of the top plate (3); The dispensing unit comprises a telescopic member (401), a dispensing head (402), a connecting rod (403), a motor (404), a scraper (405), a fixed plate (406), a bearing (407), a threaded rod (408), a rotating handle (409), a movable plate (410), a limiting rod (411) and a clamping plate (412), wherein the telescopic member (401) is fixedly connected to the middle position of the upper side of the top plate (3), the dispensing head (402) is fixedly connected to the lower end of the output shaft of the telescopic member (401), the connecting rod (403) is fixedly connected to the lower right end of the top plate (3), the motor (404) is fixedly connected to the lower end of the connecting rod (403), and the scraper (405) is fixedly connected to the upper middle position of the top plate (3). The lower end of the output shaft of the motor (404), the fixed plate (406) is fixedly connected to the left and right ends of the upper side of the base (1), the bearing (407) is fixedly connected to the inner middle position of the fixed plate (406), the threaded rod (408) is fixedly connected to the inner side of the bearing (407), the rotating handle (409) is fixedly connected to the end of the threaded rod (408) away from the bearing (407), the movable plate (410) is connected to the outer end of the threaded rod (408), the limiting rod (411) is fixedly connected to the front and rear ends of the movable plate (410) close to the fixed plate (406), and the clamping plate (412) is fixedly connected to the end of the limiting rod (411) away from the movable plate (410).

2. A glue dispensing assembly for a circuit board according to claim 1, characterized in that: The outer upper end of the scraper (405) is slidably connected to the lower end of the glue dispensing head (402).

3. The glue dispensing assembly for a circuit board according to claim 1, characterized in that: A limiting hole is provided at the middle position of the front and rear ends of the fixing plate (406), and the outer side of the limiting rod (411) is slidably connected to the inner side of the limiting hole.

4. The glue dispensing assembly for a circuit board according to claim 1, characterized in that: A threaded hole is provided in the middle of the movable plate (410), and the outer side of the threaded rod (408) is threadedly connected to the inner side of the threaded hole.

5. The glue dispensing assembly for a circuit board according to claim 1, characterized in that: A rubber pad is fixedly connected to one side of the clamping plate (412) away from the limiting rod (411).

6. The glue dispensing assembly for a circuit board according to claim 1, characterized in that: The drying unit comprises a hot air blower (501), an air duct (502) and an air outlet scoop (503); the hot air blower (501) is fixedly connected to the upper left end of the top plate (3); the air duct (502) is fixedly connected to the left end of the hot air blower (501); and the air outlet scoop (503) is fixedly connected to an end of the air duct (502) away from the hot air blower (501).

7. A glue dispensing assembly for a circuit board according to claim 6, characterized in that: The air outlet direction of the air outlet scoop (503) is toward the middle position of the upper side of the base (1).

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