SMT patch dispensing mechanism
By designing an SMT patch dispensing mechanism including cleaning tray, fan and motor system, the problem of wire drawing and dripping of the dispensing head is solved, and the purpose of high-quality dispensing effect and reducing later costs is achieved.
Patent Information
- Application Number
- CN202421718548.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-19
AI Technical Summary
During the SMT patching process, the dispensing head is prone to brushing and dripping, causing the colloid to accidentally fall on the patch, affecting the quality of the dispensing and product effect, and increasing later costs.
A SMT patch dispensing mechanism is designed, including a support plate, a dispensing table, a cleaning disk, a fan and a motor system. The stepper motor drives the cleaning plate to rotate, and the cleaning plate comes into contact with the dispensing head for wipe; the fan blows the dust off the patch; the dual-axis motor and hydraulic cylinder are used to fix and move the dispensing table to ensure the accuracy and stability of the dispensing.
It effectively avoids the drawing and dripping of the rubber head, ensures the quality of the rubber dispensing and product effect, and reduces later costs. At the same time, through dust removal and automatic cleaning, the accuracy and stability of dispensing are improved.
Smart Images
Figure CN222885071U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of SMT patch machines, and in particular relates to an SMT patch glue dispensing mechanism. Background Art
[0002] SMT patch refers to the abbreviation of a series of process flows based on PCB, and PCB is printed circuit board, SMT is surface mounting technology, which is the most popular technology and process in the electronic assembly industry. Usually, the electronic products we use are designed by PCB plus various capacitors, resistors and other electronic components according to the designed circuit diagram, so all kinds of electrical appliances require various SMT patch processing technologies to process. In the SMT patch process, dispensing equipment is often required for dispensing operations.
[0003] In the actual dispensing process, the dispensing head will have drawing and dripping phenomena. The drawing and dripping colloid accidentally fall on the patch, which will not only affect the quality of dispensing, but also affect the final effect of the product and increase the later cost. Utility Model Content
[0004] The purpose of the utility model is to provide an SMT patch dispensing mechanism to solve the problem raised in the above background technology that in the actual dispensing process, the dispensing head will have the phenomenon of drawing and dripping, and the drawing and dripping colloid accidentally falls on the patch, which not only affects the quality of dispensing, but also affects the final effect of the product and increases the later cost.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an SMT patch dispensing mechanism, comprising a support plate and a dispensing table for SMT patch dispensing movably connected to the surface of the support plate, the surface of the dispensing table is movably connected to two fixed plates, and a ventilation plate is installed on the surface of the dispensing table, and a fan is installed on the surface of the ventilation plate;
[0006] A fixing frame is installed on the back of the support plate, a linear reciprocating motor is installed in the fixing frame, a mounting frame is installed on the surface of the workbench of the linear reciprocating motor, a dispensing head is provided below the mounting frame, and a stepper motor is installed on the bottom wall of the mounting frame, a rotating shaft is fixed to the output end of the stepper motor, a connecting rod is fixed to the bottom of the rotating shaft, and a cleaning disk for cleaning the dispensing head is fixed to one side of the connecting rod.
[0007] In a further embodiment, a cavity is opened in the support plate, and two hydraulic cylinders 1 are symmetrically installed on the bottom wall of the inner cavity of the support plate, and a connecting block fixedly connected to the dispensing station is installed at the output end of the hydraulic cylinder 1.
[0008] In a further embodiment, a dual-axis motor is installed on the bottom wall of the inner cavity of the dispensing station, and guide screws are fixed to both output ends of the dual-axis motor, and the thread grooves of the two guide screws run in opposite directions.
[0009] In a further embodiment, a guide block is threadedly connected to the outer wall of the guide screw, and a connecting frame fixedly connected to the fixing plate is fixed to one side of the guide block.
[0010] In a further embodiment, a hydraulic cylinder 2 is installed on the top of the mounting frame, and a mounting plate fixedly connected to the dispensing head is fixed to the output end of the hydraulic cylinder 2.
[0011] In a further embodiment, the air blowing pipe of the fan extends into the ventilation plate, and a plurality of air blowing holes are formed on an outer wall of the ventilation plate on one side facing the fixed plate.
[0012] Technical effects and advantages of the utility model:
[0013] The SMT patch dispensing mechanism drives the rotating shaft and the connecting rod to rotate through the stepper motor, thereby automatically driving the cleaning disk to rotate. The cleaning disk contacts the bottom of the dispensing head to wipe the dispensing head. Before and after dispensing, the dispensing head is automatically cleaned by the cleaning disk to avoid drawing and dripping of the dispensing head, thereby ensuring the quality of dispensing.
[0014] The fan blows air into the ventilation plate, and with the multiple blowing holes on the ventilation plate, the dust on the patch can be quickly blown away to prevent the dust from mixing with the colloid, thereby affecting the adhesion effect of the colloid;
[0015] The dual-axis motor drives the guide screw to rotate, thereby driving the guide block and the connecting frame to move toward or away from each other, so that the fixing plate fits on both sides of the workpiece, thereby ensuring the stability of the workpiece and the accuracy of the dispensing position during the dispensing process;
[0016] The operation of the hydraulic cylinder can drive the dispensing table to move forward and backward, and the linear reciprocating motor can drive the mounting frame to move left and right, so that the dispensing head can perform dispensing operations on different positions of the workpiece, thereby further ensuring the accuracy of dispensing. The SMT patch dispensing mechanism can not only remove dust from the patch, but also automatically clean the dispensing head to ensure the dispensing effect of the patch. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 It is a structural schematic diagram of the dispensing station of the utility model;
[0020] Figure 3 It is a structural schematic diagram of a dual-axis motor and a fixing plate of the utility model;
[0021] Figure 4 It is a structural schematic diagram of the mounting frame of the utility model;
[0022] Figure 5 It is a structural schematic diagram of the stepping motor and the cleaning disc of the utility model.
[0023] In the figure: 1. Support plate; 2. Hydraulic cylinder 1; 3. Connecting block; 4. Glue dispensing station; 5. Dual-axis motor; 6. Guide screw; 7. Guide block; 8. Connecting frame; 9. Fixed plate; 10. Ventilation plate; 11. Fan; 12. Fixed frame; 13. Linear reciprocating motor; 14. Mounting frame; 15. Hydraulic cylinder 2; 16. Mounting plate; 17. Glue dispensing head; 18. Stepping motor; 19. Rotating shaft; 20. Connecting rod; 21. Cleaning disc. DETAILED DESCRIPTION
[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.
[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.
[0026] See also Figure 1-5 The utility model provides an SMT patch dispensing mechanism, comprising a support plate 1 and a dispensing table 4 for SMT patch dispensing movably connected to the surface of the support plate 1, a cavity is provided in the support plate 1, two hydraulic cylinders 2 are symmetrically installed on the bottom wall of the inner cavity of the support plate 1 by bolts, a connecting block 3 fixedly connected to the dispensing table 4 is installed at the output end of the hydraulic cylinder 2, two moving grooves for the connecting block 3 to move are symmetrically provided on the surface of the support plate 1, and the dispensing table 4 can be driven to move back and forth on the surface of the support plate 1 by pushing and pulling the connecting block 3 by the hydraulic cylinder 2;
[0027] A double-axis motor 5 is installed on the bottom wall of the inner cavity of the dispensing station 4 by bolts. The two output ends of the double-axis motor 5 are fixed with guide screws 6 by couplings, and the thread grooves of the two guide screws 6 are in opposite directions. The outer wall of the guide screw 6 is threadedly connected with a guide block 7. A guide groove for the guide block 7 to move is opened on the outer wall of one side of the dispensing station 4, and a connecting frame 8 is fixed on one side of the guide block 7. The end surface of the connecting frame 8 is fixed with a fixing plate 9 movably connected to the dispensing station 4 by bolts. The work of the double-axis motor 5 drives the guide screw 6 to rotate, thereby driving the guide block 7 and the connecting frame 8 to move toward or oppositely, so that the fixing plate 9 fits on both sides of the workpiece, so that the stability of the workpiece and the accuracy of the dispensing position can be guaranteed during the dispensing process.
[0028] A ventilation plate 10 is installed on the surface of the dispensing table 4 by bolts, and a fan 11 is installed on the surface of the ventilation plate 10. The wind speed blown by the fan 11 can be selected according to actual use requirements. The blowing pipe of the fan 11 extends into the ventilation plate 10. The outer wall of the ventilation plate 10 on one side facing the fixed plate 9 is provided with a plurality of blowing holes. The fan 11 is used to blow air into the ventilation plate 10. In combination with the plurality of blowing holes on the ventilation plate 10, the dust on the patch can be quickly blown away to prevent the dust from mixing with the colloid, thereby affecting the adhesion effect of the colloid.
[0029] A fixing frame 12 is installed on the back of the support plate 1 by bolts, and a linear reciprocating motor 13 is installed in the fixing frame 12 by bolts. The linear reciprocating motor 13 is a prior art, and its structure will not be described in detail here. A mounting frame 14 is installed on the surface of the working table of the linear reciprocating motor 13 by bolts. The linear reciprocating motor 13 can drive the mounting frame 14 to move left and right. A hydraulic cylinder 15 is installed on the top of the mounting frame 14 by bolts, and a mounting plate 16 is fixed to the output end of the hydraulic cylinder 15. A glue dispensing head 17 is installed at the bottom of the mounting plate 16. The glue dispensing head 17 is a prior art, and its structure will not be described in detail here.
[0030] A stepper motor 18 is installed on the bottom wall of the mounting frame 14 by bolts. The rotation angle of the stepper motor 18 is ±180°. A rotating shaft 19 is fixed to the output end of the stepper motor 18 through a coupling. A connecting rod 20 is fixed to the bottom of the rotating shaft 19, and a cleaning disc 21 for cleaning the dispensing head 17 is fixed to one side of the connecting rod 20. The cleaning disc 21 fits the bottom of the dispensing head 17, and a groove is provided on the surface of the cleaning disc 21. A cleaning cloth is placed in the groove of the cleaning disc 21. The cleaning cloth is detachable, which is convenient for replacing the cleaning cloth, thereby ensuring the cleaning effect of the cleaning cloth. The rotating shaft 19 and the connecting rod 20 are driven to rotate by the stepper motor 18, thereby automatically driving the cleaning disc 21 to rotate, and the cleaning disc 21 contacts the bottom of the dispensing head 17 to wipe the dispensing head 17. Before and after dispensing, the dispensing head 17 is automatically cleaned by the cleaning disc 21, thereby avoiding the phenomenon of wire drawing and dripping of the dispensing head, thereby ensuring the quality of dispensing.
[0031] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The control method of the utility model is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0032] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0033] Working principle:
[0034] When the SMT patch dispensing mechanism is used, the patch to be dispensed is placed on the surface of the dispensing table 4. At this time, the two fixing plates 9 are respectively located on both sides of the patch, and the dual-axis motor 5 is started to drive the guide screw 6 to rotate. The guide screw 6 drives the two guide blocks 7 and the connecting frame 8 to move toward each other, so that the fixing plates 9 are attached to both sides of the patch to fix the position of the patch;
[0035] Start the fan 11 to blow air into the ventilation plate 10, cooperate with the multiple blowing holes on the ventilation plate 10 to quickly blow away the dust on the patch, then turn off the fan 11, start the stepper motor 18, drive the rotating shaft 19 and the connecting rod 20 to rotate, thereby automatically driving the cleaning plate 21 to rotate, the cleaning plate 21 contacts the bottom of the dispensing head 17, wipes the dispensing head 17, and at the same time, the cleaning plate 21 rotates to the rear side of the dispensing head 17, the hydraulic cylinder 2 15 drives the dispensing head 17 to descend, the hydraulic cylinder 1 2 works, drives the dispensing table 4 to move forward and backward, the linear reciprocating motor 13 drives the mounting frame 14 to move left and right, accurately controls the position of the dispensing head 17, and performs dispensing operations on the patch through the dispensing head 17;
[0036] After the dispensing operation is completed, the hydraulic cylinder 15 drives the dispensing head 17 to reset, and the stepper motor 18 rotates in the opposite direction to rotate the cleaning disk 21 to the bottom of the dispensing head 17 to wipe the dispensing head 17. The dual-axis motor 5 rotates in the opposite direction to separate the fixing plate 9 from the patch, and the patch after dispensing is removed from the dispensing table 4.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A SMT patch glue dispensing mechanism, comprising a support plate (1) and a glue dispensing station (4) for SMT patch glue dispensing movably connected to the surface of the support plate (1), characterized in that: The surface of the dispensing platform (4) is movably connected to two fixed plates (9), and a ventilation plate (10) is installed on the surface of the dispensing platform (4), and a fan (11) is installed on the surface of the ventilation plate (10); A fixing frame (12) is installed on the back of the support plate (1), a linear reciprocating motor (13) is installed in the fixing frame (12), a mounting frame (14) is installed on the surface of the working table of the linear reciprocating motor (13), a dispensing head (17) is provided below the mounting frame (14), and a stepping motor (18) is installed on the bottom wall of the mounting frame (14), a rotating shaft (19) is fixed to the output end of the stepping motor (18), a connecting rod (20) is fixed to the bottom of the rotating shaft (19), and a cleaning disk (21) for cleaning the dispensing head (17) is fixed to one side of the connecting rod (20).
2. The SMT patch dispensing mechanism according to claim 1, characterized in that: The support plate (1) has a cavity formed therein, and two hydraulic cylinders (2) are symmetrically mounted on the bottom wall of the inner cavity of the support plate (1). A connecting block (3) fixedly connected to a dispensing platform (4) is mounted at the output end of the hydraulic cylinder (2).
3. The SMT patch dispensing mechanism according to claim 2, characterized in that: A dual-axis motor (5) is installed on the bottom wall of the inner cavity of the dispensing station (4), and guide screws (6) are fixed to the two output ends of the dual-axis motor (5), and the thread grooves of the two guide screws (6) run in opposite directions.
4. The SMT patch dispensing mechanism according to claim 3, characterized in that: The outer wall of the guide screw (6) is threadedly connected to a guide block (7), and a connecting frame (8) fixedly connected to a fixing plate (9) is fixed on one side of the guide block (7).
5. The SMT patch dispensing mechanism according to claim 1, characterized in that: A second hydraulic cylinder (15) is installed on the top of the mounting frame (14), and a mounting plate (16) fixedly connected to the dispensing head (17) is fixed to the output end of the second hydraulic cylinder (15).
6. The SMT patch dispensing mechanism according to claim 1, characterized in that: The air blowing pipe of the fan (11) extends into the ventilation plate (10), and a plurality of air blowing holes are formed on an outer wall of one side of the ventilation plate (10) facing the fixed plate (9).