Negative pressure glue filling device

Abstract

The utility model relates to the processing field of negative pressure glue filling technology, and discloses a negative pressure glue filling device, which comprises a rack, a jig module, a glue filling module and a cleaning module, the jig module, the glue filling module and the cleaning module are all arranged on the rack, the jig module comprises a first jig assembly and a second jig assembly, and the first jig assembly and the second jig assembly are arranged on the rack. The first jig assembly and the second jig assembly are arranged in parallel, the cleaning module is arranged between the first jig assembly and the second jig assembly, the fixed end of the glue filling module is installed on the rear side of the jig module, and the output end of the glue filling module is arranged above the jig module and the cleaning module; the device has the function of precisely pouring glue into a product; the device has the function of cleaning the residual glue of the product; the device can realize the functions of cleaning a needle head and sucking a glue suction nozzle; the position of the glue absorbing and pouring needle can be automatically adjusted according to the glue pouring and absorbing position of the product, and precise glue pouring is realized; and glue dispensing and glue absorbing are accurate, and the good market application value is achieved.

Description

Technical Field

[0001] This utility model relates to the field of negative pressure glue dispensing technology, and more specifically, to a negative pressure glue dispensing device. Background Technology

[0002] In some applications, it is necessary to fill the tubular structure with glue. For example, the tubular structure of a sensor contains wires, and there is usually a gap between the wires and the inner wall of the tubular structure. Glue needs to be filled into this gap. On the one hand, this can fix the wires and prevent them from being damaged by vibration during operation; on the other hand, it can increase the insulation between the wires and the bend in the tubing. In related technologies, glue is usually manually filled into the tubular structure using a syringe, which has low glue filling efficiency.

[0003] Existing glue-filling devices operate under negative pressure at one end, creating negative pressure inside the glue-filling cavity, while the other end supplies glue to fill the cavity. However, during the glue-filling process, glue residue can easily remain on the needle, resulting in unsightly glue residue on the product. Furthermore, the glue cannot be filled accurately, and it cannot meet the requirements for cleaning and glue-filling in confined spaces, leading to high costs and a high defect rate.

[0004] Existing technology has flaws and needs improvement. Utility Model Content

[0005] To address the shortcomings of current technology, this invention provides a negative pressure dispensing device.

[0006] The present invention provides a negative pressure dispensing device, comprising a frame, a fixture module, a dispensing module, and a cleaning module. The fixture module, dispensing module, and cleaning module are all mounted on the frame. The fixture module is respectively configured as a first fixture assembly and a second fixture assembly, which are arranged in parallel. The cleaning module is located between the first fixture assembly and the second fixture assembly. The fixed end of the dispensing module is mounted on the rear side of the fixture module, and the output end of the dispensing module is located above the fixture module and the cleaning module.

[0007] Preferably, the first fixture assembly includes a fixture base plate, a fixture motor, a fixture slide, a fixture slide rod, and a needle-setting unit. The fixture base plate is mounted on the frame, the fixture slide is mounted on the fixture base plate, the fixed end of the fixture motor is mounted on one end of the fixture base plate, the output end of the fixture motor is connected to one end of the fixture slide rod, the other end of the fixture slide rod is connected to the fixture slide, and the needle-setting unit is mounted on the fixture slide.

[0008] Preferably, the needle-matching unit includes a needle-matching frame, a vacuum generator, an optical fiber amplifier, a Z-axis needle contact sensor, an X-axis needle fiber, a Y-axis needle fiber, a glue supply port, and a glue suction port. The needle-matching frame is mounted on a fixture slide. The vacuum generator is installed at the bottom of the needle-matching frame, and the optical fiber amplifier is installed at the top of the needle-matching frame. The Z-axis needle contact sensor is installed at one end of the needle-matching frame, and an optical fiber mounting plate is installed on one side of the Z-axis needle contact sensor. The needle-matching optical fiber is mounted on the optical fiber mounting plate, and X-axis needle fibers and Y-axis needle fibers are respectively arranged on the needle-matching optical fiber. A vacuum suction cup is installed on the needle-matching frame, and a potting product is installed inside the vacuum suction cup. One end of the potting product is respectively provided with a glue supply port and a glue suction port.

[0009] Preferably, the glue-dispensing module includes a stand, an X-axis glue-dispensing slide, an X-axis glue-cleaning slide, a first Z-axis glue-dispensing slide, a second Z-axis glue-dispensing slide, a Z-axis glue-cleaning slide, a first glue-dispensing unit, a second glue-dispensing unit, and a glue-cleaning unit. The stand is mounted on a frame. The X-axis glue-dispensing slide and the X-axis glue-cleaning slide are respectively mounted on both sides of the stand. The first Z-axis glue-dispensing slide and the second Z-axis glue-dispensing slide are respectively spaced apart on the X-axis glue-dispensing slide. The Z-axis glue-cleaning slide is mounted on the X-axis glue-cleaning slide. The first glue-dispensing unit and the second glue-dispensing unit are respectively mounted on the first Z-axis glue-dispensing slide and the second glue-dispensing slide. The glue-cleaning unit is mounted on the Z-axis glue-cleaning slide.

[0010] Preferably, the first dispensing unit includes a dispensing carrier plate, a first vertical plate, a residual glue storage cup, a Z-shaped carrier plate, a dispensing vacuum device, a detection camera, a detection light source, a glue suction nozzle, and a fine-tuning part. One side of the dispensing carrier plate is disposed on the first Z-axis dispensing slide, and the Z-shaped carrier plate is installed on the upper middle part of the other side of the dispensing carrier plate. The first vertical plate and the fine-tuning part are respectively installed on both sides of the dispensing carrier plate. The dispensing vacuum device is installed on one side of the first vertical plate, and the residual glue storage cup is installed on the other side. The detection camera, the detection light source, and the glue suction device are installed sequentially from top to bottom on one side of the Z-shaped carrier plate, and the glue suction nozzle is installed at the lower end of the glue suction device.

[0011] Preferably, the fine-tuning unit includes a fine-tuning fixing plate, a Y-axis fine-tuning guide rail, a Y-axis fine-tuning motor, an X-axis fine-tuning guide rail, an X-axis fine-tuning motor, a fine-tuning moving plate, a Z-axis fine-tuning cylinder, a fine-tuning frame, a glue tank, a glue supply controller, and a glue dispensing needle. The fine-tuning fixing plate is mounted on a glue dispensing carrier plate. A Y-axis fine-tuning guide rail is mounted on one side of the fine-tuning fixing plate. The Y-axis fine-tuning motor is mounted on the Y-axis fine-tuning guide rail. A first fine-tuning slide plate is mounted on the Y-axis fine-tuning motor. An X-axis fine-tuning motor is mounted on the first fine-tuning slide plate. The output end of the X-axis fine-tuning motor is connected to the X-axis fine-tuning guide rail. The fine-tuning moving plate is mounted on the X-axis fine-tuning guide rail. A Z-axis fine-tuning cylinder is mounted on one side of the fine-tuning moving plate. A fine-tuning frame is mounted on the output end of the Z-axis fine-tuning cylinder. The glue tank is installed inside the fine-tuning frame. The glue dispensing needle is mounted on the bottom of the glue tank. The glue supply controller is mounted on the top of the glue tank.

[0012] Preferably, the adhesive removal unit includes a Z-axis adhesive removal fixing plate, an adhesive removal vacuum device, an adhesive removal storage cup, an adhesive removal detector, an adhesive removal light source, and an adhesive removal nozzle. The Z-axis fixing plate is disposed on the Z-axis adhesive removal slide. An adhesive removal storage cup is installed on one side of the Z-axis adhesive removal fixing plate. A first adhesive removal plate and a second adhesive removal plate are arranged sequentially from top to bottom on one end of the Z-axis adhesive removal fixing plate. An adhesive removal vacuum device is installed on the first adhesive removal plate. An adhesive removal detector and an adhesive removal light source are arranged sequentially from top to bottom on one side of the second adhesive removal plate. An adhesive removal nozzle is installed on the other side of the second adhesive removal plate.

[0013] Preferably, the cleaning module includes a first cleaning unit and a second cleaning unit. The second cleaning unit is located on one side of the first cleaning unit. The second cleaning unit includes a cleaning stand, a cleaning vacuum, a cleaning suction nozzle, and a cleaning storage cup. The cleaning stand is located on the frame. The cleaning storage cup is installed on one side of the cleaning stand, and the cleaning vacuum is installed on the other side. The cleaning suction nozzle is installed on the top of the cleaning storage cup.

[0014] Preferably, the first cleaning unit includes a cleaning motor, a cleaning stand, a roll material sensor, a first roll of fabric, a second roll of fabric, a clamping cylinder, a residual adhesive cup, and a residual adhesive suction nozzle. The cleaning stand is mounted on a frame. The fixed end of the cleaning motor is installed on one side of the cleaning stand. The output end of the cleaning motor is connected to one end of the first roll of fabric. The first roll of fabric is connected to the second roll of fabric via a belt and rotates. The roll material sensor is located between the first roll of fabric and the second roll of fabric. The clamping cylinder is installed above the roll material sensor. The fixed ends of the roll material sensor and the clamping cylinder are both located on the other side of the cleaning stand. A residual adhesive cup is also installed on one side of the cleaning stand. A residual adhesive suction nozzle is installed at the top of the cleaning stand and is located on one side of the residual adhesive cup.

[0015] Compared to existing technologies, this invention features a fixture module, a glue-filling module, and a cleaning module. This enables the negative pressure glue-absorbing device to be used for filling glue at the folded position of the ribbon cable lead wire in the mid-frame of 3C electronic A-series mobile phones. The device offers precise glue-filling capabilities, cleans residual glue from the product, and cleans the needle and glue-absorbing nozzle. The glue-absorbing and dispensing needles automatically adjust their positions according to the glue-filling and suction positions on the product, ensuring precise glue filling. It is low-cost, accurate in dispensing and suction, and has significant market application value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the first fixture component of this utility model;

[0018] Figure 3 This is a schematic diagram of the pin-adjusting unit structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the glue-filling module structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the first potting unit structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the micro-adjustment part of this utility model;

[0022] Figure 7 This is a schematic diagram of the adhesive removal unit structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the cleaning unit structure of this utility model.

[0024] Labels: 1. Frame; 2. First fixture assembly; 3. Glue filling module; 4. Cleaning module; 5. Second fixture assembly; 6. Fixture base plate; 7. Fixture motor; 8. Fixture slide; 9. Fixture slide rod; 10. Needle setting unit; 11. Needle setting frame; 12. Vacuum generator; 13. Fiber optic amplifier; 14. Z-axis needle contact sensor; 25. X-axis needle fiber optic; 26. Y-axis needle fiber optic; 27. Glue supply port; 28. Glue suction port; 39. Stand; 30. X-axis glue filling slide; 31. X-axis glue cleaning slide; 32. X-axis glue cleaning slide; 33. First Z-axis glue filling slide; 34. Second Z-axis glue filling slide; 35. Z-axis glue cleaning slide; 36. First glue filling unit; 37. Second glue filling unit; 38. Glue cleaning unit; 39. Glue filling carrier plate; 371. First stand plate; 372. Residual glue storage cup; 373. Z-shaped carrier plate; 374. Glue filling vacuum device; 375. 376. Detection camera; 377. Detection light source; 378. Adhesive suction nozzle; 379. Fine-tuning unit; 3791. Fine-tuning fixing plate; 3792. Y-axis fine-tuning guide rail; 3793. Y-axis fine-tuning motor; 3794. X-axis fine-tuning guide rail; 3795. X-axis fine-tuning motor; 3796. Fine-tuning moving plate; 3797. Z-axis fine-tuning cylinder; 3798. Fine-tuning frame; 3799. Adhesive tank; 3799. Adhesive supply controller; 37910. Adhesive dispensing needle; 37911. Z-axis adhesive cleaning fixing plate; 391. Adhesive cleaning vacuum device; 392. Adhesive cleaning storage cup; 393. Adhesive cleaning detector; 394. Adhesive cleaning light source; 395. Adhesive cleaning suction nozzle; 396. Second cleaning unit; 41. Cleaning motor; 42. Roll material sensor; 43. First roll of material; 44. Second roll of material; 45. Clamping cylinder; 46. Residual adhesive cup; 47. Residual adhesive suction nozzle; 48. Cleaning stand; 49. Detailed Implementation

[0025] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

[0026] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0027] It should be noted that when a component is described as being "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is described as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0029] The present invention will now be described in detail with reference to the accompanying drawings.

[0030] like Figures 1-8 As shown: A negative pressure dispensing device includes a frame, a fixture module, a dispensing module, and a cleaning module. The fixture module, dispensing module, and cleaning module are all mounted on the frame. The fixture module is respectively configured as a first fixture assembly and a second fixture assembly, which are arranged in parallel. The cleaning module is located between the first fixture assembly and the second fixture assembly. The fixed end of the dispensing module is installed on the rear side of the fixture module, and the output end of the dispensing module is located above the fixture module and the cleaning module.

[0031] It should be noted that after the product is manually placed into the fixture module, it is initially positioned. The positioned product is then moved to the inspection position, where the product's suction port and supply port are inspected using a vision module. The product with the inspected suction and supply ports is then moved to the dispensing port position for dispensing. After dispensing, the product is moved to the cleaning position for the suction and supply ports. After cleaning, the product is moved to the inspection position for residual glue. After cleaning residual glue, the product is moved to the manual loading / unloading position for manual removal. Furthermore, this negative pressure dispensing device is used for filling the folded area of ​​the flex cable lead wire in the middle frame of 3C electronic A-type mobile phones. This negative pressure dispensing device has the following functions: it can perform precise dispensing; it can clean residual glue; it can clean the needle and suction nozzle; the suction and dispensing needles can automatically adjust their positions according to the dispensing and suction positions of the product for precise dispensing.

[0032] Furthermore, the frame module is constructed from square tubing, sheet metal, and steel plates, welded together. It primarily supports the fixing fixture module, the potting module, and the cleaning module.

[0033] Preferably, the first fixture assembly includes a fixture base plate, a fixture motor, a fixture slide, a fixture slide rod, and a needle-setting unit. The fixture base plate is mounted on the frame, the fixture slide is mounted on the fixture base plate, the fixed end of the fixture motor is mounted on one end of the fixture base plate, the output end of the fixture motor is connected to one end of the fixture slide rod, the other end of the fixture slide rod is connected to the fixture slide, and the needle-setting unit is mounted on the fixture slide.

[0034] It should be noted that the fixture motor enables the fixture slide to slide back and forth via the fixture slide rod, and drives the needle alignment unit to slide when the fixture slide moves back and forth.

[0035] Furthermore, the fixture assembly and pin alignment unit are mainly for product positioning. The specific steps are as follows: After the product is manually placed into the fixture, it is initially positioned; the positioned product is moved to the inspection position, and the glue suction port and glue supply port of the product are inspected with the help of the vision module; the product with the inspected glue suction port and glue supply port is moved to the glue filling port position, and the product is filled with glue; after the product is filled with glue, it is moved to the cleaning position of the glue suction port and glue supply port, and the two glue ports are cleaned; after the two glue ports are cleaned, the product is moved to the glue filling port inspection position to inspect for residual glue; after the residual glue is cleaned, the product is moved to the manual loading and unloading position, and the product is manually removed.

[0036] Preferably, the needle-matching unit includes a needle-matching frame, a vacuum generator, an optical fiber amplifier, a Z-axis needle contact sensor, an X-axis needle fiber, a Y-axis needle fiber, a glue supply port, and a glue suction port. The needle-matching frame is mounted on a fixture slide. The vacuum generator is installed at the bottom of the needle-matching frame, and the optical fiber amplifier is installed at the top of the needle-matching frame. The Z-axis needle contact sensor is installed at one end of the needle-matching frame, and an optical fiber mounting plate is installed on one side of the Z-axis needle contact sensor. The needle-matching optical fiber is mounted on the optical fiber mounting plate, and X-axis needle fibers and Y-axis needle fibers are respectively arranged on the needle-matching optical fiber. A vacuum suction cup is installed on the needle-matching frame, and a potting product is installed inside the vacuum suction cup. One end of the potting product is respectively provided with a glue supply port and a glue suction port.

[0037] It should be noted that the vacuum generator is connected to the air source to generate a vacuum. At the same time, the fiber optic amplifier, together with the Z-axis needle contact sensor and the needle-aligning fiber, positions the product, thereby moving the product with the detected suction port and glue supply port to the glue filling port position for glue filling. After the product is filled with glue, it is moved to the cleaning position of the suction port and glue supply port for cleaning. After the two glue ports are cleaned, the product is moved to the glue filling port detection position to detect residual glue.

[0038] Preferably, the glue-dispensing module includes a stand, an X-axis glue-dispensing slide, an X-axis glue-cleaning slide, a first Z-axis glue-dispensing slide, a second Z-axis glue-dispensing slide, a Z-axis glue-cleaning slide, a first glue-dispensing unit, a second glue-dispensing unit, and a glue-cleaning unit. The stand is mounted on a frame. The X-axis glue-dispensing slide and the X-axis glue-cleaning slide are respectively mounted on both sides of the stand. The first Z-axis glue-dispensing slide and the second Z-axis glue-dispensing slide are respectively spaced apart on the X-axis glue-dispensing slide. The Z-axis glue-cleaning slide is mounted on the X-axis glue-cleaning slide. The first glue-dispensing unit and the second glue-dispensing unit are respectively mounted on the first Z-axis glue-dispensing slide and the second glue-dispensing slide. The glue-cleaning unit is mounted on the Z-axis glue-cleaning slide.

[0039] It should be noted that the X-axis glue-dispensing slide and the X-axis glue-removing slide move laterally, which in turn moves the first Z-axis glue-dispensing slide, the second Z-axis glue-dispensing slide, and the Z-axis glue-removing slide. Meanwhile, the first Z-axis glue-dispensing slide, the second Z-axis glue-dispensing slide, and the Z-axis glue-removing slide move vertically. During this movement, the first glue-dispensing unit, the second glue-dispensing unit, and the glue-removing unit move and work, thereby enabling the first glue-dispensing unit, the second glue-dispensing unit, and the glue-removing unit to dispense glue and remove glue from the product positioned below.

[0040] Preferably, the first dispensing unit includes a dispensing carrier plate, a first vertical plate, a residual glue storage cup, a Z-shaped carrier plate, a dispensing vacuum device, a detection camera, a detection light source, a glue suction nozzle, and a fine-tuning part. One side of the dispensing carrier plate is disposed on the first Z-axis dispensing slide, and the Z-shaped carrier plate is installed on the upper middle part of the other side of the dispensing carrier plate. The first vertical plate and the fine-tuning part are respectively installed on both sides of the dispensing carrier plate. The dispensing vacuum device is installed on one side of the first vertical plate, and the residual glue storage cup is installed on the other side. The detection camera, the detection light source, and the glue suction device are installed sequentially from top to bottom on one side of the Z-shaped carrier plate, and the glue suction nozzle is installed at the lower end of the glue suction device.

[0041] It should be noted that the system detects the positions of the dispensing port and the suction port; based on the detected positions, it automatically adjusts the position between the dispensing needle and the suction nozzle to match the positions of the suction and dispensing nozzles with those of the product; it automatically dispenses glue into the product; it detects residual glue at the dispensing port and suction port; and it cleans any residual glue at the dispensing port and suction port.

[0042] Preferably, the fine-tuning unit includes a fine-tuning fixing plate, a Y-axis fine-tuning guide rail, a Y-axis fine-tuning motor, an X-axis fine-tuning guide rail, an X-axis fine-tuning motor, a fine-tuning moving plate, a Z-axis fine-tuning cylinder, a fine-tuning frame, a glue tank, a glue supply controller, and a glue dispensing needle. The fine-tuning fixing plate is mounted on a glue dispensing carrier plate. A Y-axis fine-tuning guide rail is mounted on one side of the fine-tuning fixing plate. The Y-axis fine-tuning motor is mounted on the Y-axis fine-tuning guide rail. A first fine-tuning slide plate is mounted on the Y-axis fine-tuning motor. An X-axis fine-tuning motor is mounted on the first fine-tuning slide plate. The output end of the X-axis fine-tuning motor is connected to the X-axis fine-tuning guide rail. The fine-tuning moving plate is mounted on the X-axis fine-tuning guide rail. A Z-axis fine-tuning cylinder is mounted on one side of the fine-tuning moving plate. A fine-tuning frame is mounted on the output end of the Z-axis fine-tuning cylinder. The glue tank is installed inside the fine-tuning frame. The glue dispensing needle is mounted on the bottom of the glue tank. The glue supply controller is mounted on the top of the glue tank.

[0043] It should be noted that the Y-axis fine-tuning motor drives the Y-axis fine-tuning rail to move back and forth. While the Y-axis fine-tuning rail moves, it also drives the first fine-tuning slide plate to slide. The X-axis fine-tuning motor on the first fine-tuning slide plate drives the X-axis fine-tuning rail to move laterally left and right. While the X-axis fine-tuning rail moves, it also drives the Z-axis fine-tuning cylinder to move. The Z-axis fine-tuning cylinder drives the fine-tuning frame to move up and down. The glue tank installed on the fine-tuning frame supplies glue to the product through the glue supply controller and the glue dispensing needle.

[0044] Furthermore, the glue container contains 30ml of glue.

[0045] Preferably, the adhesive removal unit includes a Z-axis adhesive removal fixing plate, an adhesive removal vacuum device, an adhesive removal storage cup, an adhesive removal detector, an adhesive removal light source, and an adhesive removal nozzle. The Z-axis fixing plate is disposed on the Z-axis adhesive removal slide. An adhesive removal storage cup is installed on one side of the Z-axis adhesive removal fixing plate. A first adhesive removal plate and a second adhesive removal plate are arranged sequentially from top to bottom on one end of the Z-axis adhesive removal fixing plate. An adhesive removal vacuum device is installed on the first adhesive removal plate. An adhesive removal detector and an adhesive removal light source are arranged sequentially from top to bottom on one side of the second adhesive removal plate. An adhesive removal nozzle is installed on the other side of the second adhesive removal plate.

[0046] It should be noted that the system detects the positions of the dispensing port and the suction port; based on the detected positions, it automatically adjusts the position between the dispensing needle and the suction nozzle to match the positions of the suction and dispensing nozzles with those of the product; it automatically dispenses glue into the product; it detects residual glue at the dispensing port and suction port; and it cleans any residual glue at the dispensing port and suction port.

[0047] Preferably, the cleaning module includes a first cleaning unit and a second cleaning unit. The second cleaning unit is located on one side of the first cleaning unit. The second cleaning unit includes a cleaning stand, a cleaning vacuum, a cleaning suction nozzle, and a cleaning storage cup. The cleaning stand is located on the frame. The cleaning storage cup is installed on one side of the cleaning stand, and the cleaning vacuum is installed on the other side. The cleaning suction nozzle is installed on the top of the cleaning storage cup.

[0048] It should be noted that the first cleaning unit and the second cleaning unit are used to clean residual glue from the dispensing needle and the vacuum nozzle; to receive residual glue discharged from the dispensing needle (to prevent the needle from becoming clogged and discharging glue); to clean residual glue from the vacuum nozzle of the dispensing assembly; and to clean the glue suction nozzle of the product.

[0049] Preferably, the first cleaning unit includes a cleaning motor, a cleaning stand, a roll material sensor, a first roll of fabric, a second roll of fabric, a clamping cylinder, a residual adhesive cup, and a residual adhesive suction nozzle. The cleaning stand is mounted on a frame. The fixed end of the cleaning motor is installed on one side of the cleaning stand. The output end of the cleaning motor is connected to one end of the first roll of fabric. The first roll of fabric is connected to the second roll of fabric via a belt and rotates. The roll material sensor is located between the first roll of fabric and the second roll of fabric. The clamping cylinder is installed above the roll material sensor. The fixed ends of the roll material sensor and the clamping cylinder are both located on the other side of the cleaning stand. A residual adhesive cup is also installed on one side of the cleaning stand. A residual adhesive suction nozzle is installed at the top of the cleaning stand and is located on one side of the residual adhesive cup.

[0050] It should be noted that the first cleaning unit and the second cleaning unit are used to clean residual glue from the dispensing needle and the vacuum nozzle; to receive residual glue discharged from the dispensing needle (to prevent the needle from becoming clogged and discharging glue); to clean residual glue from the vacuum nozzle of the dispensing assembly; and to clean the glue suction nozzle of the product.

[0051] Further, the process is as follows: 1. The product is manually placed on the fixture; 2. The product moves to the pre-dispensing inspection position; 3. Dispensing port and suction port are inspected; 4. The product moves to the dispensing position, and the suction nozzle and dispensing nozzle automatically compensate for their positions; 5. Dispensing; 6. The product moves to the dispensing port inspection position; 7. Dispensing port and suction port glue are inspected; 8. The product moves to the cleaning position; 9. Residual glue is cleaned; 10. The product moves to the residual glue inspection position; 11. Residual glue is inspected again; 12. The product moves to the manual loading / unloading position; 13. The product is manually removed.

[0052] Furthermore, multiple cleaning units are provided on both sides and at the rear of the first fixture unit and the second fixture unit, with at least two sets of cleaning units provided.

[0053] Furthermore, a sliding cylinder can be installed at the bottom of the cleaning stand to adjust the cleaning angle of the cleaning stand.

[0054] This negative pressure dispensing device also uses this method to complete product dispensing. However, the difference lies in that, before dispensing, a vision system is used to precisely measure the dispensing and suction positions. The corresponding suction nozzle and suction needle are adjusted to the suction and dispensing positions according to the measured position, so that the positions of the suction head and dispensing needle match the positions on both sides of the product's dispensing hole, achieving precise dispensing. At the same time, after dispensing, the product moves with the fixture to the cleaning port position. The vision system detects the glue at the dispensing and suction ports. If the glue at the dispensing and suction ports meets the set requirements under vision detection, the product moves with the fixture to the loading and unloading position, where it is manually removed. If the glue at both positions exceeds the standard, the cleaning mechanism cleans the residual glue at the suction and dispensing ports. After cleaning, the vision detection system checks again. After the check is completed, the product moves to the manual unloading position, where it is manually removed. One dispensing process is completed. At the same time, this device can clean the dispensing needle and suction nozzle to ensure precise dispensing of the product.

[0055] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A negative pressure dispensing device, characterized in that, The device includes a frame, a fixture module, a dispensing module, and a cleaning module. The fixture module, dispensing module, and cleaning module are all mounted on the frame. The fixture module is configured as a first fixture assembly and a second fixture assembly, which are arranged in parallel. The cleaning module is located between the first fixture assembly and the second fixture assembly. The fixed end of the dispensing module is mounted on the rear side of the fixture module, and the output end of the dispensing module is located above the fixture module and the cleaning module.

2. The negative pressure dispensing device according to claim 1, characterized in that, The first fixture assembly includes a fixture base plate, a fixture motor, a fixture slide, a fixture slide rod, and a needle-setting unit. The fixture base plate is mounted on the machine frame, the fixture slide is mounted on the fixture base plate, the fixed end of the fixture motor is mounted on one end of the fixture base plate, the output end of the fixture motor is connected to one end of the fixture slide rod, the other end of the fixture slide rod is connected to the fixture slide, and the needle-setting unit is mounted on the fixture slide.

3. The negative pressure dispensing device according to claim 2, characterized in that, The needle-setting unit includes a needle-setting frame, a vacuum generator, an optical fiber amplifier, a Z-axis needle contact sensor, an X-axis needle fiber, a Y-axis needle fiber, a glue supply port, and a glue suction port. The needle-setting frame is mounted on a fixture slide. The vacuum generator is installed at the bottom of the needle-setting frame, and the optical fiber amplifier is installed at the top of the needle-setting frame. The Z-axis needle contact sensor is installed at one end of the needle-setting frame, and an optical fiber mounting plate is installed on one side of the Z-axis needle contact sensor. The needle-setting optical fiber is mounted on the optical fiber mounting plate, and X-axis and Y-axis needle fibers are respectively arranged on the needle-setting optical fiber. A vacuum suction cup is installed on the needle-setting frame, and a potting product is installed inside the vacuum suction cup. One end of the potting product is respectively provided with a glue supply port and a glue suction port.

4. The negative pressure dispensing device according to claim 1, characterized in that, The glue-dispensing module includes a stand, an X-axis glue-dispensing slide, an X-axis glue-cleaning slide, a first Z-axis glue-dispensing slide, a second Z-axis glue-dispensing slide, a Z-axis glue-cleaning slide, a first glue-dispensing unit, a second glue-dispensing unit, and a glue-cleaning unit. The stand is mounted on a frame. The X-axis glue-dispensing slide and the X-axis glue-cleaning slide are respectively mounted on both sides of the stand. The first Z-axis glue-dispensing slide and the second Z-axis glue-dispensing slide are respectively spaced apart on the X-axis glue-dispensing slide. The Z-axis glue-cleaning slide is mounted on the X-axis glue-cleaning slide. The first glue-dispensing unit and the second glue-dispensing unit are respectively mounted on the first Z-axis glue-dispensing slide and the glue-cleaning unit is mounted on the Z-axis glue-cleaning slide.

5. A negative pressure dispensing device according to claim 4, characterized in that, The first dispensing unit includes a dispensing carrier plate, a first vertical plate, a residual glue storage cup, a Z-shaped carrier plate, a dispensing vacuum device, a detection camera, a detection light source, a glue suction nozzle, and a fine-tuning part. One side of the dispensing carrier plate is disposed on the first Z-axis dispensing slide. The Z-shaped carrier plate is installed on the upper middle part of the other side of the dispensing carrier plate. The first vertical plate and the fine-tuning part are respectively installed on both sides of the dispensing carrier plate. The dispensing vacuum device is installed on one side of the first vertical plate, and the residual glue storage cup is installed on the other side. The detection camera, the detection light source, and the glue suction device are installed sequentially from top to bottom on one side of the Z-shaped carrier plate. The glue suction nozzle is installed at the lower end of the glue suction device.

6. The negative pressure dispensing device according to claim 5, characterized in that, The fine-tuning unit includes a fine-tuning fixed plate, a Y-axis fine-tuning guide rail, a Y-axis fine-tuning motor, an X-axis fine-tuning guide rail, an X-axis fine-tuning motor, a fine-tuning moving plate, a Z-axis fine-tuning cylinder, a fine-tuning frame, a glue tank, a glue supply controller, and a glue dispensing needle. The fine-tuning fixed plate is mounted on a glue dispensing carrier plate. A Y-axis fine-tuning guide rail is mounted on one side of the fine-tuning fixed plate. The Y-axis fine-tuning motor is mounted on the Y-axis fine-tuning guide rail. A first fine-tuning slide plate is mounted on the Y-axis fine-tuning motor. An X-axis fine-tuning motor is mounted on the first fine-tuning slide plate. The output end of the X-axis fine-tuning motor is connected to the X-axis fine-tuning guide rail. The fine-tuning moving plate is mounted on the X-axis fine-tuning guide rail. A Z-axis fine-tuning cylinder is mounted on one side of the fine-tuning moving plate. A fine-tuning frame is mounted on the output end of the Z-axis fine-tuning cylinder. The glue tank is installed inside the fine-tuning frame. The glue dispensing needle is mounted on the bottom of the glue tank. The glue supply controller is mounted on the top of the glue tank.

7. The negative pressure dispensing device according to claim 4, characterized in that, The adhesive removal unit includes a Z-axis adhesive removal fixing plate, an adhesive removal vacuum device, an adhesive removal storage cup, an adhesive removal detector, an adhesive removal light source, and an adhesive removal nozzle. The Z-axis adhesive removal fixing plate is mounted on the Z-axis adhesive removal slide. An adhesive removal storage cup is installed on one side of the Z-axis adhesive removal fixing plate. A first adhesive removal plate and a second adhesive removal plate are arranged sequentially from top to bottom on one end of the Z-axis adhesive removal fixing plate. An adhesive removal vacuum device is installed on the first adhesive removal plate. An adhesive removal detector and an adhesive removal light source are arranged sequentially from top to bottom on one side of the second adhesive removal plate. An adhesive removal nozzle is installed on the other side of the second adhesive removal plate.

8. The negative pressure dispensing device according to claim 1, characterized in that, The cleaning module includes a first cleaning unit and a second cleaning unit. The second cleaning unit is located on one side of the first cleaning unit. The second cleaning unit includes a cleaning stand, a cleaning vacuum, a cleaning suction nozzle, and a cleaning storage cup. The cleaning stand is located on the frame. The cleaning storage cup is installed on one side of the cleaning stand, and the cleaning vacuum is installed on the other side. The cleaning suction nozzle is installed on the top of the cleaning storage cup.

9. A negative pressure dispensing device according to claim 8, characterized in that, The first cleaning unit includes a cleaning motor, a cleaning stand, a roll material sensor, a first roll of fabric, a second roll of fabric, a clamping cylinder, a residual adhesive cup, and a residual adhesive suction nozzle. The cleaning stand is mounted on a frame. The fixed end of the cleaning motor is installed on one side of the cleaning stand. The output end of the cleaning motor is connected to one end of the first roll of fabric. The first roll of fabric is connected to the second roll of fabric via a belt and rotates. The roll material sensor is located between the first roll of fabric and the second roll of fabric. The clamping cylinder is installed above the roll material sensor. The fixed ends of the roll material sensor and the clamping cylinder are both located on the other side of the cleaning stand. A residual adhesive cup is also installed on one side of the cleaning stand. A residual adhesive suction nozzle is installed at the top of the cleaning stand and is located on one side of the residual adhesive cup.

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