Weighing glue cleaning nozzle device for automatic glue dispenser
By integrating the weighing and cleaning device on the automatic dispenser, automatic weighing calibration and blocking and unblocking of the glue injection amount is achieved, which solves the problems of manual check and unblocking, and improves the automation and stability of the equipment.
Patent Information
- Application Number
- CN202421801332.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The existing glue dispensers lack automated verification devices, which leads to manual clearance when the glue injection nozzle is blocked and cannot ensure processing stability.
A weighing and cleaning device for automatic dispensing machine is designed, including weighing components and glue cleaning components, which can automatically weigh and calibrate the amount of glue injection and unblock when blocked, and the components are connected to the controller to achieve automated operation.
It improves the degree of automation of the equipment, reduces manual participation, reduces labor costs, and ensures processing stability and efficiency.
Smart Images
Figure CN223069767U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dispensing machines, and particularly relates to a weighing and glue cleaning nozzle device for an automatic dispensing machine. Background Art
[0002] A dispensing machine is a commonly used processing device with very wide applications. In the field of SMT (Surface Mount Technology), the dispensing machine is mainly used for dispensing and curing chip electronic components in a PCB board, that is, a special glue is pre-dispensed at the positions on the PCB board where components need to be mounted to fix the surface-mounted components, and then through-hole soldering is carried out after curing. The purpose is to reduce the failure probability of components due to factors such as thermal expansion and contraction, dropping, and vibration during the use of the product, thereby extending the service life of the product.
[0003] Since the glue is sticky and there is a possibility of clogging the injection nozzle of the dispensing machine, the dispensing machine needs to weigh and calibrate the glue output every once in a while to ensure the processing stability of the dispensing machine. However, the existing dispensing machines lack corresponding calibration devices. Usually, the operator manually takes out the injected glue once and takes it to an external weighing device for weighing and calibration. If the injection nozzle is clogged, manual cleaning is also used. Summary of the Utility Model
[0004] In order to solve some or all of the problems existing in the above-mentioned prior art, the utility model provides a weighing and glue cleaning nozzle device for an automatic dispensing machine. The automatic dispensing machine includes a machine platform and a controller. A dispensing mechanism is arranged on the machine platform, and an injection nozzle is arranged on the dispensing mechanism. The weighing and glue cleaning nozzle device includes a calibration mounting frame, the calibration mounting frame is connected to the machine platform, a weighing assembly and a glue cleaning nozzle assembly are arranged on the calibration mounting frame, the weighing assembly and the glue cleaning nozzle assembly are respectively connected to the controller, the dispensing mechanism can drive the injection nozzle to be respectively connected to the weighing assembly and the glue cleaning nozzle assembly, the weighing assembly is used for weighing the glue injection amount of the injection nozzle, and the glue cleaning nozzle assembly is used for dredging the injection nozzle.
[0005] As a further improvement of the utility model, the weighing assembly includes an electronic scale, the electronic scale is connected to the calibration mounting frame, the electronic scale is electrically connected to the controller, a cup groove is arranged on the calibration mounting frame, the cup groove is used for placing a weighing and measuring cup, and the dispensing mechanism can drive the injection nozzle to be connected to the cup groove.
[0006] As a further improvement of the utility model, the glue cleaning nozzle assembly includes a wiping member and a vacuum suction head. A wiping mounting block is arranged on the calibration mounting frame, the wiping member is connected to the wiping mounting block, the vacuum suction head is connected to the calibration mounting frame, the vacuum suction head is externally connected to a negative pressure device, and the dispensing mechanism can drive the injection nozzle to be respectively connected to the wiping member and the vacuum suction head.
[0007] As a further improvement of the present utility model, the wiping member is detachably connected to the wiping mounting block.
[0008] As a further improvement of the present utility model, the wiping member is a sponge adsorbed with alcohol.
[0009] As a further improvement of the present utility model, a calibration mounting block is provided on the calibration mounting frame. A height calibration block and a horizontal calibration block are provided on the calibration mounting block. The dispensing mechanism can drive the dispensing nozzle to be respectively in contact with the height calibration block and the horizontal calibration block. The height calibration block is used to calibrate the horizontal height of the dispensing nozzle, and the horizontal calibration block is used to calibrate the horizontal movement distance of the dispensing nozzle.
[0010] As a further improvement of the present utility model, the height calibration block is movably and limit-connected to the calibration mounting block. A contact sensor is provided on the calibration mounting block. The contact sensor is connected to the controller. The contact sensor is arranged directly below the height calibration block, and the height calibration block can be in contact with the contact sensor.
[0011] As a further improvement of the present utility model, coordinate markings are provided on the horizontal calibration block.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] Through the cooperation of the weighing assembly and the glue cleaning nozzle assembly, the present utility model can perform weighing verification on the glue injection amount of the glue dispenser, and can also automatically dredge the dispensing nozzle when it is blocked, improving the automation degree of the equipment, reducing manual participation, and reducing the labor cost. Specifically, when it is necessary to perform weighing calibration on the glue injection amount of the dispensing nozzle, only need to control the dispensing mechanism to drive the dispensing nozzle to the weighing assembly and inject glue into the weighing assembly, and the weighing assembly can weigh the glue. If the weighing is insufficient and the dispensing nozzle needs to be dredged, only need to control the dispensing mechanism to drive the dispensing nozzle to the corresponding position of the glue cleaning nozzle assembly, and control the glue cleaning nozzle assembly to dredge the dispensing nozzle. Description of the Drawings
[0014] In order to more clearly illustrate the solutions in the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.
[0015] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present utility model;
[0016] Figure 2 This is a schematic structural diagram of the calibration mounting block in an embodiment of the present utility model. Detailed implementation manners
[0017] Unless otherwise defined, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs; the terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model; the terms "comprising" and "having" and any variations thereof in the specification and claims of the present utility model and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present utility model or the above drawings are used to distinguish different objects and are not used to describe a specific order.
[0018] Reference to "embodiment" in the present utility model means that a specific feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present utility model. The phrase appears at various positions in the specification does not necessarily refer to the same embodiment, nor is it an exclusive, independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present utility model can be combined with other embodiments.
[0019] In order to enable those skilled in the technical field to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings.
[0020] As Figure 1 、 2 shown, a weighing and glue cleaning nozzle device for an automatic dispensing machine, the automatic dispensing machine includes a machine table and a controller, a dispensing mechanism is provided on the machine table, the dispensing mechanism is used for dispensing products, and a glue injection nozzle is provided on the dispensing mechanism. The weighing and glue cleaning nozzle device includes a calibration mounting frame 1, the calibration mounting frame 1 is fixedly installed on the machine table, a weighing assembly and a glue cleaning nozzle assembly are provided on the calibration mounting frame 1, the weighing assembly and the glue cleaning nozzle assembly are respectively connected to the controller of the automatic dispensing machine, and the controller can control the weighing assembly and the glue cleaning nozzle assembly to work respectively. The weighing assembly is used for weighing the glue injection amount of the glue injection nozzle, and the glue cleaning nozzle assembly is used for dredging the glue injection nozzle.
[0021] During specific operation, when the automatic dispensing machine needs to perform weighing calibration after processing for a period of time, the dispensing mechanism drives the dispensing nozzle to move to the corresponding position of the weighing component, and injects glue onto the weighing component. The weighing component can weigh the amount of glue discharged by the dispensing nozzle each time. If the weighing is insufficient and the dispensing nozzle needs to be unclogged, only need to control the dispensing mechanism to drive the dispensing nozzle to move to the corresponding position of the glue cleaning nozzle component, and control the glue cleaning nozzle component to unclog the dispensing nozzle. This weighing and glue cleaning nozzle device can weigh and calibrate the amount of glue dispensed by the automatic dispensing machine each time, and can automatically unclog the dispensing nozzle when it is blocked, reducing manual participation, thereby reducing labor costs and improving processing efficiency.
[0022] The weighing component includes an electronic scale 2, which is electrically connected to the controller. The electronic scale 2 is fixedly installed on the calibration mounting frame 1. A cup slot 3 is provided on the calibration mounting frame 1, and the cup slot 3 is used to place the weighing measurement cup. The dispensing mechanism can drive the dispensing nozzle to be connected to the cup slot 3. Before weighing calibration, the weighing measurement cup can be placed into the cup slot 3 in advance; when weighing calibration is required, control the dispensing mechanism to drive the dispensing nozzle to move directly above the weighing measurement cup, and then control the dispensing nozzle to extrude glue, and the glue will drip onto the weighing measurement cup; then the operator can take out the weighing measurement cup from the cup slot 3 and then place it on the electronic scale 2 for weighing. If the weighed weight is within the error range of the preset value, it means that the dispensing nozzle is not blocked, and the automatic dispensing machine can be controlled to continue working; if the weighed weight is lower than the error range of the preset value, it means that the dispensing nozzle is blocked, and the dispensing mechanism needs to be controlled to drive the dispensing nozzle to move to the glue cleaning nozzle component to unclog the dispensing nozzle, so as to ensure that an appropriate amount of glue can be extruded during subsequent dispensing processing.
[0023] The glue cleaning nozzle component includes a wiping piece 4 and a vacuum suction head 5. A wiping mounting block 6 is provided on the calibration mounting frame 1. The wiping piece 4 is installed on the wiping mounting block 6, and the wiping piece 4 is detachably connected to the wiping mounting block 6, which is convenient for replacing the wiping piece 4. The vacuum suction head 5 is connected to the calibration mounting frame 1, and the vacuum suction head 5 is externally connected to a negative pressure device. The dispensing mechanism can drive the dispensing nozzle to be connected to the wiping piece 4 and the vacuum suction head 5 respectively. During specific operation, when the dispensing nozzle needs to be unclogged, first control the dispensing mechanism to drive the dispensing nozzle to move to the wiping piece 4, so that the dispensing nozzle rubs against the wiping test piece, and first wipe off the excess glue on the dispensing nozzle through the wiping piece 4; then control the dispensing mechanism to drive the dispensing nozzle to be connected to the vacuum suction head 5, and then make the vacuum suction head 5 generate negative pressure suction through the negative pressure device externally connected to the vacuum suction head 5, so as to suck out the residual glue inside the dispensing nozzle to achieve the purpose of unclogging the dispensing nozzle.
[0024] In this embodiment, the wiping member 4 is a sponge adsorbed with alcohol. When the dispensing mechanism drives the dispensing nozzle to rub against the wiping member 4, the wiping member 4 can apply the alcohol onto the dispensing nozzle, thereby softening the residual glue on the dispensing nozzle, enabling the vacuum suction head 5 to more easily suck out the glue in the dispensing nozzle, and improving the efficiency and stability of cleaning the dispensing nozzle.
[0025] A calibration mounting block 7 is provided on the calibration mounting frame 1. A height calibration block 8 and a horizontal calibration block 9 are provided on the calibration mounting block 7. The dispensing mechanism can drive the dispensing nozzle to contact the height calibration block 8 and the horizontal calibration block 9 respectively. The height calibration block 8 is used to calibrate the horizontal height of the dispensing nozzle, and the horizontal calibration block 9 is used to calibrate the horizontal movement distance of the dispensing nozzle. When it is necessary to calibrate the dispensing height of the dispensing nozzle, control the dispensing mechanism to drive the dispensing nozzle to move above the height calibration block 8 and control the dispensing nozzle to descend until the dispensing nozzle contacts the height calibration block 8, which indicates that the height of the dispensing nozzle at this time is the dispensing height of the automatic dispenser; when it is necessary to calibrate the horizontal movement distance of the dispensing nozzle, control the dispensing mechanism to drive the dispensing nozzle to move above the height calibration block 8 and control the dispensing nozzle to descend until the dispensing nozzle contacts the height calibration block 8. The horizontal coordinate information of the current dispensing nozzle can be obtained through the CCD camera on the dispensing mechanism; by setting the horizontal calibration block 9 and the height calibration block 8, it is convenient to debug the automatic dispenser and improve the efficiency of machine adjustment.
[0026] Specifically, the height calibration block 8 is movably and limit-connected to the calibration mounting block 7. A contact sensor 10 is provided on the calibration mounting block 7. The contact sensor 10 is connected to the controller. The contact sensor 10 is arranged directly below the height calibration block 8, and the height calibration block 8 can contact the contact sensor 10. When calibrating the horizontal height of the dispensing nozzle, when the dispensing mechanism drives the dispensing nozzle to descend until it contacts the height calibration block 8, the dispensing nozzle will appropriately press the height calibration block 8, so that the height calibration block 8 presses down to contact the contact sensor 10, and the contact sensor 10 feeds back a signal to the controller, enabling the controller to obtain the height data of the current dispensing nozzle; so as to facilitate the controller to accurately control the dispensing height of the dispensing nozzle to be consistent each time, ensuring the consistency and stability of processing.
[0027] Coordinate marks 11 are provided on the horizontal calibration block 9. During the calibration of the horizontal movement distance of the dispensing nozzle, the dispensing nozzle will move on the coordinate marks 11. By photographing the numerical changes of the coordinate marks 11 corresponding to the dispensing nozzle at various positions through the CCD camera, the movement distance of the dispensing nozzle can be calculated, so that the controller can accurately control the horizontal movement distance of the dispensing nozzle, ensuring the consistency and stability of processing.
[0028] Installing the weighing and glue cleaning nozzle device on the automatic dispensing machine can achieve weighing and calibration of the glue output of the dispensing nozzle each time, and can automatically dredge the dispensing nozzle in case of blockage, reducing manual participation and labor costs, and improving the processing efficiency of the equipment; on the other hand, installing the height calibration block 8 and the horizontal calibration block 9 on the calibration mounting frame 1 can assist the automatic dispensing machine in adjusting the machine, so as to quickly and accurately locate the dispensing height and horizontal movement distance of the dispensing nozzle, reducing the debugging time of the equipment, ensuring the consistency of each dispensing, and improving the processing stability and the qualified product rate.
[0029] The above specific implementation manners are the preferred implementation manners of the present utility model, and do not limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to this specific implementation manner. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.
Claims
1. A weighing and glue cleaning nozzle device for an automatic dispensing machine, the automatic dispensing machine comprising a machine platform and a controller, wherein a dispensing mechanism is provided on the machine platform, and a glue injection nozzle is provided on the dispensing mechanism, characterized in that: The weighing and glue cleaning nozzle device includes a calibration mounting frame, which is connected to the machine table. A weighing assembly and a glue cleaning nozzle assembly are provided on the calibration mounting frame. The weighing assembly and the glue cleaning nozzle assembly are respectively connected to the controller. The dispensing mechanism can drive the dispensing nozzle to be respectively connected to the weighing assembly and the glue cleaning nozzle assembly. The weighing assembly is used to weigh the glue injection amount of the dispensing nozzle, and the glue cleaning nozzle assembly is used to dredge the dispensing nozzle.
2. The weighing and glue cleaning nozzle device for an automatic dispensing machine according to claim 1, characterized in that: The weighing assembly includes an electronic scale, which is connected to the calibration mounting frame and electrically connected to the controller. A cup groove is provided on the calibration mounting frame for placing a weighing measurement cup. The dispensing mechanism can drive the dispensing nozzle to be connected to the cup groove.
3. The weighing and glue cleaning nozzle device for an automatic dispensing machine according to claim 1, characterized in that: The glue cleaning nozzle assembly includes a wiping piece and a vacuum suction head. A wiping mounting block is provided on the calibration mounting frame. The wiping piece is connected to the wiping mounting block, and the vacuum suction head is connected to the calibration mounting frame. The vacuum suction head is externally connected to a negative pressure device. The dispensing mechanism can drive the dispensing nozzle to be respectively connected to the wiping piece and the vacuum suction head.
4. The weight-based glue cleaning nozzle device for an automatic dispensing machine according to claim 3, characterized in that: The wiping piece is detachably connected to the wiping mounting block.
5. The weighing and glue cleaning nozzle device for an automatic dispensing machine according to claim 3, characterized in that: The wiping piece is a sponge adsorbed with alcohol.
6. The weighing and glue cleaning nozzle device for an automatic dispensing machine according to any one of claims 1-5, characterized in that: A calibration mounting block is provided on the calibration mounting frame. A height calibration block and a horizontal calibration block are provided on the calibration mounting block. The dispensing mechanism can drive the dispensing nozzle to be respectively connected to the height calibration block and the horizontal calibration block. The height calibration block is used to calibrate the horizontal height of the dispensing nozzle, and the horizontal calibration block is used to calibrate the horizontal moving distance of the dispensing nozzle.
7. The weighing and glue cleaning nozzle device for an automatic dispensing machine according to claim 6, characterized in that: The height calibration block is movably and limitably connected to the calibration mounting block. A contact sensor is provided on the calibration mounting block and connected to the controller. The contact sensor is arranged directly below the height calibration block, and the height calibration block can be in contact with the contact sensor.
8. The weighing and glue cleaning nozzle device for an automatic dispensing machine according to claim 6, characterized in that: Coordinate markings are provided on the horizontal calibration block.