SMT (Surface Mount Technology) dispenser with adjustable dispensing position

Abstract

The utility model discloses an SMT (Surface Mount Technology) dispenser with an adjustable dispensing position, which relates to the technical field of SMT dispensing and comprises a fixing mechanism, a dispensing mechanism is arranged on one side of the fixing mechanism, a conveying mechanism is fixed on one side of the fixing mechanism, a negative pressure mechanism is arranged on one side of the fixing mechanism, and the negative pressure mechanism is arranged on the other side of the fixing mechanism. The SMT glue dispensing device solves the problems that an existing SMT glue dispensing device is single-point surface mounting, the glue dispensing efficiency is affected, it is difficult to ensure that the position of a PCB corresponds to a glue dispensing head for multiple times through adjustment of the position of the PCB, and deviation is prone to occurring, the glue dispensing plate is easy to replace through sleeving arrangement of the sleeve plate and inserting arrangement of the transfer glue box, glue dispensing and surface mounting of the whole PCB can be rapidly completed, and the production efficiency is improved. And through sliding of the negative pressure assembly, the PCB can be aligned with the limiting assembly to be fixed, and through positioning arrangement of the limiting assembly and the negative pressure mechanism, the dispensing heads can correspond up and down and do not deviate.

Description

Technical Field

[0001] The utility model relates to the technical field of SMT dispensing, in particular to an SMT dispenser with adjustable dispensing position. Background Technique

[0002] In the whole production process flow, after the components on one side of the printed circuit board are dispensed and cured, wave soldering can only be carried out at the end. The interval time during this period is relatively long, and there are many other processes. Therefore, it is particularly important to cure the components through the SMT dispensing process. When dispensing, it is necessary to press and hold the PCB board through a pressing plate, and dispense glue through the holes of the pressing plate. However, when dispensing glue, some manually cover and remove the pressing plate. During the process, the pressing plate cannot leave horizontally, which will drive the glue to change its position.

[0003] An SMT dispensing device with the authorization announcement number of CN218167598U includes a bottom plate. Electric push rods are installed at the four corners of the upper end surface of the bottom plate. The top end of the output end of the electric push rod is connected to a mounting plate. A left plate and a right plate are provided at the center of the bottom end of the mounting plate. A dispensing cylinder is installed between the left plate and the right plate. A dispensing nozzle is provided at the bottom end of the dispensing cylinder. A first motor is installed on the left side of the left plate. The output end of the first motor is installed with a horizontal block. Grooves are provided on the front and back sides of the horizontal block and heating wires are installed. A cleaning cotton is installed on the horizontal block. A fixing table is slidably installed on the upper end surface of the bottom plate. A second motor is installed inside the fixing table. The top end of the output end of the second motor is connected to a limiting frame. After dispensing is completed, the electric push rod is started to move the mounting plate upward. The first motor is started to rotate the horizontal block. The heating wire in the horizontal block heats up and contacts the colloid, so as to cut off the colloid. The cleaning cotton then wipes the dispensing nozzle. This SMT dispensing device is for single-point chip mounting, and the dispensing position is relatively fixed, making it difficult to quickly complete the dispensing and chip mounting of the whole PCB, affecting the dispensing efficiency, and it is difficult to ensure that the position of the PCB corresponds to the dispensing head multiple times, and it is easy to deviate.

[0004] In view of the above problems, for this reason, an SMT dispenser with adjustable dispensing position is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an SMT dispenser with adjustable dispensing position, which solves the problems in the background technique that the existing SMT dispensing device is for single-point chip mounting, the dispensing position is relatively fixed, making it difficult to quickly complete the dispensing and chip mounting of the whole PCB, affecting the dispensing efficiency, and it is difficult to ensure that the position of the PCB corresponds to the dispensing head multiple times, and it is easy to deviate.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A dispensing position adjustable SMT dispenser, including a fixing mechanism, on one side of the fixing mechanism is provided a liftable dispensing mechanism, on one side of the fixing mechanism is fixed a conveying mechanism for conveying PCB boards, on one side of the fixing mechanism is horizontally provided a negative pressure mechanism. The dispensing mechanism includes an upper bracket arranged to be lifted, the lower end of the upper bracket is connected to a lower bracket, a threaded bracket is threadedly sleeved on the upper bracket. The lower bracket includes a sleeve frame connected to the lower end of the upper bracket, a sleeve plate is sleeved in the sleeve frame, a glue gun is fixedly arranged in the sleeve plate in a fixed direction, on one side of the sleeve frame is provided a transfer glue box. The negative pressure mechanism includes a moving plate arranged to be lifted, a negative pressure component is slidably sleeved on the moving plate, and the fixing mechanism includes a limiting component arranged on one side of the negative pressure mechanism.

[0007] Preferably, the fixing mechanism includes a bottom plate, a support chassis fixedly arranged on the upper end of the bottom plate, the limiting component is arranged on the upper end of the support chassis, on one side of the bottom plate is fixedly arranged a fixing frame, and a fixed glue box is placed on the upper end of the fixing frame.

[0008] Preferably, the limiting component includes an L-shaped frame fixedly arranged on the upper end of the support chassis, a clamping groove is opened inside one side of the L-shaped frame, and a side baffle is connected to one side of the L-shaped frame.

[0009] Preferably, the dispensing mechanism includes a driving cylinder fixedly arranged on the upper end of the fixing frame, a round rod connected between the support chassis and the fixing frame, there are two round rods arranged vertically, the lifting end of the driving cylinder is connected to the upper bracket, and the upper bracket is movably sleeved on the round rod.

[0010] Preferably, the upper bracket includes an upper plate, on one side of the upper plate are fixedly arranged two groups of upper plates, the two groups of upper plates are sleeved on two groups of round rods, a separation pipe is connected to the upper end of the transfer glue box, one end of the transfer glue box is connected to a hose, one end of the hose is connected to the fixed glue box, the threaded bracket includes a threaded rod sleeved on the upper plate, and an extrusion plate is fixedly arranged at the lower end of the threaded rod.

[0011] Preferably, the conveying mechanism includes two groups of support plates fixedly arranged on the upper end of the bottom plate, a driving motor connected to one side of the support plates, a roller is arranged at the output end of the driving motor, gears are engaged on both sides of the roller, and a transmission chain is engaged side by side on the outside of the gears, and the transmission chain is arranged on both sides of the roller.

[0012] Preferably, the negative pressure mechanism includes a connecting plate fixedly arranged on one side of the fixing frame, a horizontal cylinder fixedly arranged on one side of the connecting plate, the output end of the horizontal cylinder is connected to the moving plate, and a guiding frame is fixed on one side of the connecting plate, and the moving plate is slidably engaged on the guiding frame.

[0013] Preferably, the output end of the moving plate is connected to a lifting plate, and sliding grooves are formed on both sides of the lifting plate. The negative pressure assembly includes a negative pressure tube slidably engaged in the sliding grooves. A spring is sleeved on the lower end of the negative pressure tube, and a negative pressure rubber nozzle is arranged at the lower end of the negative pressure tube.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For the adjustable dispensing position SMT dispenser provided by the present utility model, through the socket setting of the sleeve plate and the insertion setting of the transfer glue box, the dispensing plate is easy to replace, enabling the entire PCB to be quickly completed with dispensing and chip mounting, affecting the dispensing efficiency. It solves the problem that the existing SMT dispensing device is for single-point chip mounting, the dispensing position is relatively fixed, making it difficult to quickly complete the dispensing and chip mounting of the entire PCB and affecting the dispensing efficiency.

[0016] 2. For the adjustable dispensing position SMT dispenser provided by the present utility model, through the sliding of the negative pressure assembly, the PCB board can be aligned with the limiting assembly for fixation. The positioning settings of the limiting assembly and the negative pressure mechanism enable the dispensing head to be vertically corresponding without deviation. It solves the problem that it is difficult to ensure the multiple correspondences between the position of the PCB of the existing SMT dispensing device and the dispensing head, and it is prone to deviation. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model Figure 1 ;

[0018] Figure 2 is a schematic diagram of the overall structure of the present utility model Figure 2 ;

[0019] Figure 3 is a schematic front view structure diagram of the present utility model;

[0020] Figure 4 is a schematic structure diagram of the dispensing mechanism of the present utility model;

[0021] Figure 5 is a schematic structure diagram of the negative pressure mechanism of the present utility model.

[0022] In the figure: 1. Fixing mechanism; 11. Bottom plate; 12. Fixing frame; 13. Fixing glue box; 14. Supporting bottom frame; 15. Limiting component; 151. L-shaped frame; 152. Card slot; 153. Side baffle; 2. Glue dispensing mechanism; 21. Driving cylinder; 22. Round rod; 23. Upper bracket; 231. Upper plate; 232. Isolation frame; 24. Threaded frame; 241. Extrusion plate; 242. Threaded rod; 25. Lower bracket; 251. Sleeve frame; 252. Sleeve plate; 2521. Glue gun; 253. Transfer glue box; 2531. Separation tube; 2532. Hose; 3. Conveying mechanism; 31. Support plate; 32. Driving motor; 33. Roller; 331. Gear; 34. Transmission chain; 4. Negative pressure mechanism; 41. Connecting plate; 411. Guide frame; 42. Horizontal cylinder; 43. Moving plate; 431. Lifting plate; 432. Chute; 44. Negative pressure component; 441. Negative pressure tube; 442. Spring; 443. Negative pressure glue nozzle. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0025] Combined with Figure 1 , a glue dispensing position adjustable SMT glue dispenser of the present invention includes a fixing mechanism 1. A liftable glue dispensing mechanism 2 is arranged on one side of the fixing mechanism 1. A conveying mechanism 3 for conveying PCB boards is fixed on one side of the fixing mechanism 1. A negative pressure mechanism 4 is horizontally arranged on one side of the fixing mechanism 1. The glue dispensing mechanism 2 includes an upper bracket 23 arranged in a liftable manner. The lower end of the upper bracket 23 is connected to a lower bracket 25. A threaded frame 24 is threadedly sleeved on the upper bracket 23. The lower bracket 25 includes a sleeve frame 251 connected to the lower end of the upper bracket 23. A sleeve plate 252 is sleeved in the sleeve frame 251. A glue gun 2521 is fixedly arranged in the sleeve plate 252. A transfer glue box 253 is arranged on one side of the sleeve frame 251. The negative pressure mechanism 4 includes a moving plate 43 arranged in a liftable manner. A negative pressure component 44 is slidably sleeved on the moving plate 43. The fixing mechanism 1 includes a limiting component 15 arranged on one side of the negative pressure mechanism 4.

[0026] Specifically, the upper bracket 23 and the lower bracket 25 are fixed to each other. The sleeve frame 251 provides a socket position for the sleeve plate 252. The sleeve plate 252 is clamped within the sleeve frame 251. The glue gun 2521 is arranged to align with the glue dispensing position. The transfer glue box 253 is inserted into the upper end of the glue gun 2521. The socket arrangement of the sleeve plate 252 and the insertion arrangement of the transfer glue box 253 facilitate the replacement of the glue dispensing plate, enabling the entire PCB to be quickly completed with glue dispensing and chip mounting, thus affecting the glue dispensing efficiency. The threaded bracket 24 is sleeved on the upper bracket 23 to squeeze and fix the sleeve plate 252. The moving plate 43 is movable, and the negative pressure assembly 44 can suck the PCB board under negative pressure. The slidable negative pressure assembly 44 enables the PCB board to be aligned with the limiting assembly 15 for fixation. The positioning arrangements of the limiting assembly 15 and the negative pressure mechanism 4 enable the glue dispensing head to be vertically corresponding without deviation.

[0027] The following further describes the present utility model in conjunction with embodiments.

[0028] Embodiment 1:

[0029] Combined with Figures 2 - 5 , the fixing mechanism 1 includes a bottom plate 11, a support bottom frame 14 fixedly arranged at the upper end of the bottom plate 11, a limiting assembly 15 arranged at the upper end of the support bottom frame 14. A fixing frame 12 is fixedly arranged on one side of the bottom plate 11, and a fixing glue box 13 is placed at the upper end of the fixing frame 12. The bottom plate 11 and the support bottom frame 14 are fixed to each other. The fixing frame 12 supports and fixes the fixing glue box 13. The fixing glue box 13 contains glue for glue dispensing, and pressure application can achieve glue pressing.

[0030] The limiting assembly 15 includes an L-shaped frame 151 fixedly arranged at the upper end of the support bottom frame 14. A card slot 152 is formed inside one side of the L-shaped frame 151. A side baffle 153 is connected to one side of the L-shaped frame 151. The side baffle 153 and the L-shaped frame 151 cooperate to form. The card slot 152 is formed on one side for clamping the PCB board. An inclined slot is formed at one end of the card slot 152 to achieve the positioning of the PCB board.

[0031] The glue dispensing mechanism 2 includes a driving cylinder 21 fixedly arranged at the upper end of the fixing frame 12, and round rods 22 connected between the support bottom frame 14 and the fixing frame 12. There are two perpendicular round rods 22. The lifting end of the driving cylinder 21 is connected to an upper bracket 23. The upper bracket 23 is movably sleeved on the round rod 22. The driving cylinder 21 drives the upper bracket 23 to lift along the round rod 22 to achieve glue dispensing pressure application.

[0032] The upper support bracket 23 includes an upper plate 231. On one side of the upper plate 231, two sets of upper plates 231 are fixedly arranged. The two sets of upper plates 231 are sleeved on two sets of round rods 22. The upper end of the transfer glue tank 253 is connected with a separation pipe 2531. One end of the transfer glue tank 253 is connected with a hose 2532. One end of the hose 2532 is connected and fixed to the fixed glue tank 13. The threaded frame 24 includes a threaded rod 242 sleeved on the upper plate 231. The lower end of the threaded rod 242 is fixedly provided with a pressing plate 241. The isolation frame 232 separates and fixes the upper plate 231 and the sleeve frame 251. The separation pipe 2531 separates the glue and provides glue for the insertion of multiple glue guns 2521. The pressing plate 241 presses the sleeve plate 252. The rotation of the threaded rod 242 realizes the height adjustment of the pressing plate 241.

[0033] Embodiment Two:

[0034] Combined with Figure 2 and Figure 5 , the conveying mechanism 3 includes two sets of support plates 31 fixedly arranged at the upper end of the bottom plate 11, a driving motor 32 connected to one side of the support plates 31. The output end of the driving motor 32 is provided with a roller 33. On both sides of the roller 33, engaging gears 331 are provided. Outside the engaging gears 331, a transmission chain 34 is arranged side by side. The transmission chain 34 is arranged on both sides of the roller 33. The support plates 31 are fixedly connected to the driving motor 32. The driving motor 32 drives the roller 33 to rotate. Multiple rollers 33 achieve synchronous rotation through the engaging gears 331 and the transmission chain 34 for conveying the PCB board.

[0035] The negative pressure mechanism 4 includes a connecting plate 41 fixedly arranged on one side of the fixed frame 12, a horizontal cylinder 42 fixedly arranged on one side of the connecting plate 41. The output end of the horizontal cylinder 42 is connected with a moving plate 43. On one side of the connecting plate 41, a guiding frame 411 is fixed. The moving plate 43 is slidably engaged on the guiding frame 411. The connecting plate 41 fixes the horizontal cylinder 42. The horizontal cylinder 42 drives the moving plate 43 to move along the guiding frame 411 to realize the horizontal movement of the PCB board.

[0036] The output end of the moving plate 43 is connected with a lifting plate 431. On both sides of the lifting plate 431, sliding grooves 432 are opened. The negative pressure assembly 44 includes a negative pressure pipe 441 slidably engaged in the sliding grooves 432. The lower end of the negative pressure pipe 441 is sleeved with a spring 442. The lower end of the negative pressure pipe 441 is provided with a negative pressure rubber nozzle 443. The lifting plate 431 is lifted and lowered under the drive of the moving plate 43. The sliding grooves 432 are opened on both sides of the lifting plate 431. The negative pressure pipe 441 is slidably engaged in the sliding grooves 432. The setting of the spring 442 helps the PCB board to be lifted and engaged along the limiting assembly 15. The negative pressure pipe 441 realizes air pressure transmission for the negative pressure rubber nozzle 443. The negative pressure rubber nozzle 443 is arranged in contact with the PCB board. The sliding setting of the negative pressure pipe 441 in the sliding grooves 432 enables the PCB board to move horizontally for positioning.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A SMT glue dispensing machine with adjustable glue dispensing position, comprising a fixing mechanism (1), characterized in that: A liftable dispensing mechanism (2) is disposed on one side of the fixing mechanism (1), a conveying mechanism (3) for conveying PCB boards is fixed on one side of the fixing mechanism (1), and a negative pressure mechanism (4) is transversely disposed on one side of the fixing mechanism (1); The glue dispensing mechanism (2) comprises an upper bracket (23) which is arranged to be lifted, the lower end of the upper bracket (23) is connected to a lower bracket (25), a threaded frame (24) is threadedly sleeved on the upper bracket (23), the lower bracket (25) comprises a sleeve frame (251) connected to the lower end of the upper bracket (23), a sleeve plate (252) is sleeved in the sleeve frame (251), a glue gun (2521) is fixed in a directional manner in the sleeve plate (252), a transfer glue box (253) is arranged on one side of the sleeve frame (251), the negative pressure mechanism (4) comprises a movable plate (43) which is arranged to be lifted, a negative pressure component (44) is slidably sleeved on the movable plate (43), and the fixing mechanism (1) comprises a limiter component (15) arranged on one side of the negative pressure mechanism (4).

2. The SMT dispensing machine with adjustable dispensing position according to claim 1, characterized in that: The fixing mechanism (1) comprises a bottom plate (11), a supporting frame (14) fixedly arranged at the upper end of the bottom plate (11), the limiting assembly (15) arranged at the upper end of the supporting frame (14), a fixing frame (12) fixedly arranged on one side of the bottom plate (11), and a fixed glue box (13) placed at the upper end of the fixing frame (12).

3. The SMT dispensing machine with adjustable dispensing position according to claim 2, characterized in that: The position limiting assembly (15) comprises an L-shaped frame (151) fixedly arranged on the upper end of the supporting base frame (14); a card slot (152) is provided inside one side of the L-shaped frame (151); and a side baffle (153) is connected to one side of the L-shaped frame (151).

4. The SMT dispensing machine with adjustable dispensing position according to claim 2, characterized in that: The dispensing mechanism (2) comprises a driving cylinder (21) fixedly arranged at the upper end of a fixing frame (12), a round rod (22) connected between a supporting base frame (14) and the fixing frame (12), two round rods (22) being vertically arranged, and an upper bracket (23) being connected to the lifting end of the driving cylinder (21), and the upper bracket (23) being movably sleeved on the round rod (22).

5. The SMT dispensing machine with adjustable dispensing position according to claim 1, characterized in that: The upper bracket (23) comprises an upper plate (231), two groups of upper plates (231) are fixedly arranged on one side of the upper plate (231), the two groups of upper plates (231) are sleeved with two groups of round rods (22), the upper end of the transfer rubber box (253) is connected with a separation tube (2531), one end of the transfer rubber box (253) is connected with a hose (2532), one end of the hose (2532) is connected to the fixed rubber box (13), the threaded frame (24) comprises a threaded rod (242) sleeved with the upper plate (231), and the lower end of the threaded rod (242) is fixedly arranged with an extrusion plate (241).

6. The SMT dispensing machine with adjustable dispensing position according to claim 2, characterized in that: The conveying mechanism (3) comprises two groups of support plates (31) fixedly arranged on the upper end of the bottom plate (11), a driving motor (32) connected to one side of the support plate (31), a roller (33) being arranged at the output end of the driving motor (32), gears (331) being engaged on both sides of the roller (33), transmission chains (34) being engaged side by side on the outer sides of the gears (331), and the transmission chains (34) being arranged on both sides of the roller (33).

7. The SMT dispensing machine with adjustable dispensing position according to claim 2, characterized in that: The negative pressure mechanism (4) comprises a connecting plate (41) fixedly arranged on one side of a fixing frame (12), a transverse cylinder (42) fixedly arranged on one side of the connecting plate (41), an output end of the transverse cylinder (42) being connected to a movable plate (43), a guide frame (411) being fixed on one side of the connecting plate (41), and the movable plate (43) being slidably engaged with the guide frame (411).

8. The SMT dispensing machine with adjustable dispensing position according to claim 1, characterized in that: The output end of the movable plate (43) is connected to a lifting plate (431), and sliding grooves (432) are provided on both sides of the lifting plate (431). The negative pressure component (44) comprises a negative pressure tube (441) which is slidably engaged in the sliding groove (432), and the lower end of the negative pressure tube (441) is sleeved with a spring (442), and the lower end of the negative pressure tube (441) is provided with a negative pressure nozzle (443).

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