Automatic glue dispenser for folding screen mobile phone
By using a spiral blade mixing and cooling component in the automatic dispensing machine for foldable screen phones, the problems of insufficient mixing and fast curing of AB glue were solved, achieving good bonding and sealing effects on the rotating shaft and meeting the production requirements of foldable screen phones.
Patent Information
- Application Number
- CN202422857130.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Existing dispensing machines suffer from insufficient mixing, rapid curing, and poor bonding and sealing effects when mixing AB adhesives, making it difficult to meet the sealing requirements of foldable screen phone hinges.
An automatic dispensing machine for foldable screen mobile phones was designed. It uses a Y-axis moving module to transport the mobile phone and provides A and B adhesives through a dual-tube dispensing assembly. The spiral blade design in the mixing tube accelerates the mixing, and the cooling assembly absorbs heat. The mixed A and B adhesives are then applied to the rotating shaft through the dispensing assembly, ensuring thorough and uniform mixing and reducing the temperature to meet the requirements of subsequent bonding processes.
This process ensures thorough mixing and temperature control of the AB adhesive, extends curing time, and guarantees excellent bonding and sealing of the hinge, meeting the production requirements of foldable screen phones.
Smart Images
Figure CN223818984U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mobile phone production equipment technical field especially relates to a folding screen mobile phone automatic glue dispensing machine. BACKGROUND
[0002] Folding screen mobile phone is a new type of mobile phone design, its feature lies in screen can be folded inwards or outwards, thereby making mobile phone freely converts in two states of small size and large size. Folding screen mobile phone is composed of upper middle frame and lower middle frame, and the upper middle frame and the lower middle frame are connected through a rotating shaft and rotate around the rotating shaft to realize unfolding or folding. In the production and assembly process of folding screen mobile phone, after the upper middle frame and the lower middle frame are locked to the same rotating shaft through screws, the rotating shaft needs to be glued with mixed AB glue for subsequent bonding of the rotating shaft cover to the rotating shaft to realize sealing of the rotating shaft and prevent dust, moisture and the like from invading the inside of the mobile phone from the rotating shaft position.
[0003] Due to the obvious limitations of manual glue dispensing mode, currently, machines are generally used to realize automatic glue dispensing. The existing glue dispensing machines are mainly divided into two types. One is a single-liquid glue dispensing machine. The single-liquid glue dispensing machine dispenses AB glue, and therefore, the AB glue needs to be mixed in advance by manual operation and then poured into the glue storage cylinder of the single-liquid glue dispensing machine. The amount of glue poured each time cannot be too much, otherwise, the AB glue will solidify in the pipeline or glue dispensing valve, causing blockage. The other is a double-liquid glue dispensing machine. The double-liquid glue dispensing machine is provided with two glue cylinders for storing A glue and B glue respectively. The glue is pumped together, mixed and then dispensed. However, AB glue will heat when it is mixed, which will accelerate the solidification speed of AB glue. In order to ensure the bonding and sealing effect, the glue supply and dispensing speed is usually accelerated, which will result in insufficient mixing time of AB glue, leading to insufficient mixing, and the subsequent bonding process needs to be carried out immediately after glue dispensing, otherwise, the AB glue will solidify, and the bonding and sealing effect of the rotating shaft cover cannot be guaranteed. SUMMARY
[0004] Therefore, the utility model aims at overcoming the defects or deficiencies of the prior art, providing a folding screen mobile phone automatic glue dispensing machine, which can slow down the solidification speed of AB glue, fully and uniformly mix AB glue, guarantee the bonding and sealing effect of AB glue, and further make the rotating shaft of the folding screen mobile phone meet the sealing requirements.
[0005] The utility model discloses a folding screen mobile phone automatic point gum machine, including frame, Y axis movement module, the fixed jig for placing folding screen mobile phone and mobile point gum device, the fixed jig is set up in the frame through Y axis movement module, mobile point gum device sets up in the frame and is located the top of Y axis movement module, mobile point gum device includes XZ two axle movement module and sets up in the point gum component on XZ two axle movement module, double glue cylinder glue supply component, cooling assembly and the mixing pipe for double glue even mixing, point gum component passes through the mixing pipe with double glue cylinder glue supply component connects, cooling assembly sets up between point gum component and double glue cylinder glue supply component, and the mixing pipe is wrapped in.
[0006] Compared with the prior art, the folding screen mobile phone automatic point gum machine provided by the utility model transports the folding screen mobile phone to be pointed by the Y axis movement module, provides A glue and B glue by the double glue cylinder glue supply component respectively, mixes AB glue by the mixing pipe, sets up the cooling assembly at the mixing pipe, absorbs the heat generated when AB glue mixes, slows down the flowability of AB glue at the same time, makes AB glue more fully mixed evenly in the mixing pipe, and AB glue after mixing is pointed to the rotating shaft by the point gum component. Through the above setting, the solidification speed of AB glue mixing is slowed down, AB glue in the mixing pipe can be mixed more fully and evenly at the same time, and the AB glue water temperature on the rotating shaft is low, the solidification time is long, has good adhesion in a certain time, helps better subsequent adhesion process, guarantees the adhesion and sealing effect of the rotating shaft cover, and then makes the rotating shaft of the folding screen mobile phone reach the good sealing requirement.
[0007] Further, the mixing pipe includes a pipe body and mixing blades arranged in the pipe body, the mixing blades include a central shaft and a plurality of spiral blade units arranged on the circumferential surface of the central shaft, and the spiral blade units are arranged along the axial direction of the central shaft. Thus, the A glue and B glue are cut and recombined multiple times by the spiral blade units, and the A glue and B glue are converted into uniform mixed AB glue.
[0008] Further, the rotation directions of the adjacent spiral blade units are opposite, and the adjacent spiral blade units have a misalignment angle. Thus, the opposite rotation directions can generate strong shear force and turbulent flow effect, thereby accelerating the mixing process of the AB glue, and the spiral blade units with opposite rotation directions can also offset part of the centrifugal force, thereby reducing the energy loss in the mixing process; the misalignment of the adjacent spiral blade units can divide the glue, thereby further increasing the flow complexity and mixing uniformity of the glue in the mixing process.
[0009] Further, the cooling assembly comprises a cooling plate and a heat preservation cover, the cooling plate is arranged on the XZ two-axis moving module, one side of the cooling plate is provided with a refrigerant inlet and outlet, the cooling plate is internally provided with a cooling channel, and the cooling channel is respectively communicated with the outside through the inlet and outlet; the heat preservation cover is arranged on the cooling plate, one side of the heat preservation cover is provided with an inner cavity, the mixing pipe is arranged in the inner cavity, an input end of the mixing pipe extends out from one side of the heat preservation cover and is connected with the double-gum-barrel glue supply assembly, and an output end of the mixing pipe extends out from the other side of the heat preservation cover and is connected with the glue dispensing assembly. Thus, the refrigerant flows through the cooling channel, so that the surface of the cooling plate has a lower temperature, and then exchanges heat with the glue in the mixing pipe, absorbs the heat generated when the AB glue is mixed, slows down the solidification speed and fluidity of the AB glue; the mixing pipe is wrapped by the heat preservation cover to form a relatively closed low-temperature environment, which helps to prevent external high-temperature air from interfering with the mixing pipe and reduces the energy loss in the cooling process.
[0010] Further, the cooling assembly comprises a cooling plate and a heat preservation cover, the cooling plate is arranged on the XZ two-axis moving module, one side of the cooling plate is provided with a refrigerant inlet and outlet, the cooling plate is internally provided with a cooling channel, and the cooling channel is respectively communicated with the outside through the inlet and outlet; the heat preservation cover is arranged on the cooling plate, one side of the heat preservation cover is provided with an inner cavity, the mixing pipe is arranged in the inner cavity, an input end of the mixing pipe extends out from one side of the heat preservation cover and is connected with the double-gum-barrel glue supply assembly, and an output end of the mixing pipe extends out from the other side of the heat preservation cover and is connected with the glue dispensing assembly. Thus, the refrigerant flows through the cooling channel, so that the surface of the cooling plate has a lower temperature, and then exchanges heat with the glue in the mixing pipe, absorbs the heat generated when the AB glue is mixed, slows down the solidification speed and fluidity of the AB glue; the mixing pipe is wrapped by the heat preservation cover to form a relatively closed low-temperature environment, which helps to prevent external high-temperature air from interfering with the mixing pipe and reduces the energy loss in the cooling process.
[0011] Further, the cooling assembly comprises a cooling plate and a heat preservation cover, the cooling plate is arranged on the XZ two-axis moving module, one side of the cooling plate is provided with a refrigerant inlet and outlet, the cooling plate is internally provided with a cooling channel, and the cooling channel is respectively communicated with the outside through the inlet and outlet; the heat preservation cover is arranged on the cooling plate, one side of the heat preservation cover is provided with an inner cavity, the mixing pipe is arranged in the inner cavity, an input end of the mixing pipe extends out from one side of the heat preservation cover and is connected with the double-gum-barrel glue supply assembly, and an output end of the mixing pipe extends out from the other side of the heat preservation cover and is connected with the glue dispensing assembly. Thus, the refrigerant flows through the cooling channel, so that the surface of the cooling plate has a lower temperature, and then exchanges heat with the glue in the mixing pipe, absorbs the heat generated when the AB glue is mixed, slows down the solidification speed and fluidity of the AB glue; the mixing pipe is wrapped by the heat preservation cover to form a relatively closed low-temperature environment, which helps to prevent external high-temperature air from interfering with the mixing pipe and reduces the energy loss in the cooling process.
[0012] Further, the glue dispensing assembly comprises a glue dispensing head and a glue dispensing valve for controlling the glue dispensing amount and glue dispensing, the glue dispensing valve is slidingly arranged on the XZ two-axis moving module, an input end of the glue dispensing valve is connected with the output end of the mixing pipe, and an output end of the glue dispensing valve is connected with the glue dispensing head. Thus, the glue dispensing amount and glue dispensing are controlled through the glue dispensing valve, and the glue is accurately dispensed to the target position through the glue dispensing head.
[0013] Further, the double-gum-barrel glue supply assembly comprises a double-gum-barrel fixing support, a first gum barrel, a second gum barrel and a glue supply driver, the double-gum-barrel fixing support is arranged on the XZ two-axis moving module, the first gum barrel and the second gum barrel are arranged on the double-gum-barrel fixing support, glue outlets of the first gum barrel and the second gum barrel are connected with the input end of the mixing pipe, and the glue supply driver is arranged at one end of the first gum barrel and the second gum barrel away from the mixing pipe and drives the glue in the first gum barrel and the second gum barrel to be extruded. Thus, the A glue in the first gum barrel and the B glue in the second gum barrel are extruded to the mixing pipe through the glue supply driver, and automatic glue supply is realized.
[0014] Furthermore, the fixing fixture includes a fixed base, a phone-shaped mold, and a limiting plate. The fixed base is disposed on the Y-axis moving module, the phone-shaped mold is disposed on the fixed base, and the limiting plate is rotatably disposed on the phone-shaped mold. The phone-shaped mold and the limiting plate together define a fixing cavity, which matches the shape of the folded folding phone. Thus, the design of the phone-shaped mold and the limiting plate achieves the positioning and fixing of the folded folding phone.
[0015] Furthermore, a handle is provided on the side of the limiting plate away from the phone's conformal mold. This facilitates the taking and placing of the foldable screen phone.
[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the automatic dispensing machine for foldable screen mobile phones described in an embodiment of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the fixing fixture described in an embodiment of the present utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the mobile dispensing device described in an embodiment of the present invention;
[0020] Figure 4 for Figure 3 A partial enlarged cross-sectional view of point A in the mobile dispensing device shown;
[0021] Figure 5 This is a schematic diagram of the mixing tube in the mobile dispensing device described in this embodiment of the invention;
[0022] Figure 6 for Figure 5 Schematic diagram of the mixing blades of the mixing tube shown. Figure 1 ;
[0023] Figure 7 for Figure 5 Schematic diagram of the mixing blades of the mixing tube shown. Figure 2 ;
[0024] Figure 8 This is a cross-sectional view of the cooling plate described in this embodiment;
[0025] Figure 9 This is a schematic diagram of the structure of the heat-insulating cover described in this embodiment.
[0026] Reference numerals: 10, frame; 20, fixing fixture; 21, base; 22, mobile phone contour mold; 221, pivot; 23, limiting plate; 231, handle; 30, Y-axis moving module; 40, moving dispensing device; 41, XZ-axis moving module; 411, X-axis linear slide module; 412, Z-axis linear slide module; 42, dual glue cylinder dispensing assembly; 421, dual glue cylinder fixing bracket; 4211, bracket body; 4212, locking fastener; 422. 423. First glue cylinder; 424. Second glue cylinder; 425. Glue supply driver; 426. Push rod; 43. Mixing tube; 431. Tube body; 432. Mixing blade; 4321. Central shaft; 4322. Spiral blade unit; 44. Cooling assembly; 441. Cooling plate; 442. Insulation cover; 443. Cooling channel; 4431. Straight pipe channel; 4432. Bent pipe channel; 45. Dispensing assembly; 451. Dispensing valve; 452. Dispensing head; 50. Foldable screen phone. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0028] Please see Figures 1 to 9 This embodiment provides an automatic dispensing machine for foldable screen mobile phones, including a frame 10, a Y-axis moving module 20, a fixing fixture 30 for placing a foldable screen mobile phone 50, and a moving dispensing device 40. The fixing fixture 30 is mounted on the frame 10 via the Y-axis moving module 20. The moving dispensing device 40 is mounted on the frame 10 and located above the Y-axis moving module 20. The moving dispensing device 40 includes an XZ two-axis moving module 41 and a dispensing assembly 45, a dual-tube glue supply assembly 42, a cooling assembly 44, and a mixing tube 43 for uniformly mixing the two glues mounted on the XZ two-axis moving module. The dispensing assembly 45 is connected to the dual-tube glue supply assembly 42 via the mixing tube 43. The cooling assembly 44 is located between the dispensing assembly 45 and the dual-tube glue supply assembly 42 and encloses the mixing tube 43.
[0029] Therefore, the automatic dispensing machine for foldable screen phones provided in this embodiment transports the foldable screen phone 50 to be dispensed through the Y-axis moving module 30, and provides A glue and B glue respectively through the dual glue supply assembly 42. The A and B glues are mixed using the mixing tube 43, and the mixed A and B glues are then applied to the hinge through the dispensing assembly 45, thereby realizing automatic dispensing of the foldable screen phone 50. Furthermore, by setting a cooling assembly 44 at the mixing tube 43, the heat generated during the mixing of A and B glues is absorbed, which slows down the curing speed of the A and B glues and reduces the fluidity of the A and B glues. This allows the A and B glues to be mixed more thoroughly and evenly in the mixing tube 43. The A and B glues applied to the hinge are at a lower temperature and have a longer curing time, exhibiting good adhesion within a certain period of time. This helps to better carry out subsequent bonding processes, ensuring the bonding and sealing effect of the hinge cover, and thus enabling the hinge of the foldable screen phone to meet good sealing requirements.
[0030] In this embodiment, the Y-axis moving module 30 is a Y-axis linear slide module, including a motor, a transmission mechanism, a linear slide rail, and a slider. The transmission mechanism is connected to the output end of the motor and is used to convert the rotational motion of the motor into linear motion. The slider is slidably connected to the linear slide rail and connected to the output end of the transmission mechanism. Driven by the motor, the transmission mechanism drives the slider to rotate linearly along the extension direction of the slide rail. This achieves the conveying of the foldable screen phone. Preferably, the transmission mechanism uses a ball screw drive. Of course, in other alternative embodiments, the transmission mechanism can use a synchronous belt drive or a rack and pinion drive.
[0031] In this embodiment, the fixing fixture 20 includes a fixing base 21, a mobile phone contouring mold 22, and a limiting plate 23. The fixing base 21 is disposed on the Y-axis moving module 30, the mobile phone contouring mold 22 is disposed on the fixing base 21, and the limiting plate 23 is rotatably disposed on the mobile phone contouring mold 22. The mobile phone contouring mold 22 and the limiting plate 23 enclose and define a fixing cavity, which matches the shape of the foldable screen mobile phone 50 after folding. Thus, the positioning and fixing of the foldable screen mobile phone 50 after folding is achieved through the design of the mobile phone contouring mold 22 and the limiting plate 23. The mobile phone contouring mold 22 has a rotating shaft 221 extending vertically on one side, and the two ends of the rotating shaft are respectively connected to the mobile phone contouring mold 22 and the fixing base 21. One side of the limiting plate 23 is rotatably disposed on the rotating shaft 221, and the other side can be connected to the mobile phone contouring mold 22 by screws or buckles. Therefore, a rotating connection between the limiting plate and the mobile phone contour mold is achieved by setting a rotating shaft.
[0032] Furthermore, a handle 231 is provided on the side of the limiting plate 23 away from the mobile phone conformal mold 22. This handle facilitates the handling of foldable screen mobile phones by production personnel.
[0033] In this embodiment, the XZ two-axis moving module 41 includes an X-axis linear slide module 411 and a Z-axis linear slide module 412. The X-axis linear slide module 411 is disposed on the frame 10, and the Z-axis linear slide module 412 is disposed at the output end of the X-axis linear slide module 411. Thus, through the arrangement of the X-axis linear slide module 411 and the Z-axis linear slide module 412, the moving dispensing device 40 can move along the X and Z axes to dispense adhesive onto the foldable screen phone on the Y-axis linear slide module. It should be noted that the specific structures of the X-axis linear slide module 411 and the Z-axis linear slide module 412 are the same as the structure of the Y-axis linear slide module described above, and will not be repeated here.
[0034] In this embodiment, the dual-glue supply assembly 42 includes a dual-glue cylinder fixing bracket 421, a first glue cylinder 422, a second glue cylinder 423, and a glue supply driver 424. The dual-glue cylinder fixing bracket 421 is disposed on the XZ two-axis moving module 41. The first glue cylinder 422 and the second glue cylinder 423 are disposed on the dual-glue cylinder fixing bracket 421. The glue outlets of the first glue cylinder 422 and the second glue cylinder 423 are connected to the input end of the mixing tube 43. The glue supply driver 424 is disposed at the end of the first glue cylinder 422 and the second glue cylinder 423 away from the mixing tube 43, and drives the glue to be extruded from the first glue cylinder 422 and the second glue cylinder 423. Thus, the AB glue is extruded into the mixing tube by the glue supply driver 424, realizing automatic glue supply.
[0035] Specifically, the dual-tube fixing bracket 421 includes a bracket body 4211 and a locking member 4212. The bracket body 4211 is mounted on the Z-axis linear slide module 412. The bracket body 4211 has a groove for placing the first tube 422 and the second tube 423. One side of the locking member 4212 is rotatably connected to the bracket body 4211 via a hinge, and the other side is connected to the bracket body 4211 via a buckle or screw. The locking member 4212 and the groove enclose and define a tube fixing cavity. The tube fixing cavity matches the shape of the first tube 422 and the second tube 423, thereby achieving the positioning and fixing of the first tube 422 and the second tube 423, and facilitating the replacement of the tubes. The bracket body 4211 has an opening at one end near the mixing tube 43, and the outlets of the first tube 422 and the second tube 423 are connected to the input end of the mixing tube 43 through the opening. The glue supply driver 424 is located at the other end of the support body 4211 and is disposed on the support body 4211 to squeeze the glue in the first glue tube 422 and the second glue tube 423 into the mixing tube 43. Preferably, the glue outlets of the first glue tube and the second glue tube are equipped with glue dispensing valves for adjusting the glue dispensing amount, thereby enabling manual adjustment of the AB glue mixing ratio.
[0036] In this embodiment, the dual-adhesive supply assembly 42 further includes a push rod 425, and the adhesive supply driver 424 is a telescopic cylinder. The push rod 425 is located at the output end of the telescopic cylinder, and the push rod 425 is driven by the telescopic cylinder to extrude AB adhesive. Of course, in other alternative embodiments, the adhesive supply driver 424 can be an electric push rod. In this embodiment, the first adhesive cartridge 422 and the second adhesive cartridge 423 are integrated cartridges, specifically integrated AB adhesive cartridges. Of course, in other alternative embodiments, the first adhesive cartridge and the second adhesive cartridge can be separate cartridges.
[0037] In this embodiment, the mixing tube 43 includes a tube body 431 and mixing blades 432 disposed within the tube body 431. Each mixing blade 432 includes a central shaft 4321 and a plurality of helical blade units 4322 disposed on the circumferential surface of the central shaft 4321. The helical blade units 4322 are arranged sequentially along the axial direction of the central shaft 4321. Thus, the helical blade units 4322 repeatedly cut and recombine the flowing A and B adhesives, thereby converting the A and B adhesives into a uniformly mixed AB adhesive.
[0038] In this design, adjacent helical blade units 4322 rotate in opposite directions, and there is a misalignment angle between them. This opposite rotation direction design generates strong shear force and turbulence, thereby accelerating the mixing process of the AB adhesive. Simultaneously, the opposite rotation directions of the helical blade units 4322 also partially cancel out centrifugal force, reducing energy loss during mixing. The misalignment of adjacent helical blade units 4322 further segments the adhesive, increasing the flow complexity and mixing uniformity during the mixing process. Preferably, the misalignment angle θ between adjacent helical blade units 4322 is 90° to uniformly segment the adhesive.
[0039] In this embodiment, the body 431 of the mixing tube 43 is connected to the outlet of the first glue tube 422 and the second glue tube 423 via a snap-fit. Of course, in other alternative embodiments, the body 431 of the mixing tube 43 can be threaded to the outlet of the first glue tube 422 and the second glue tube 423.
[0040] In this embodiment, the cooling assembly 44 includes a cooling plate 441 and a heat insulation cover 442. The cooling plate 441 is disposed on the XZ two-axis moving module 41. A refrigerant inlet and outlet are provided on one side of the cooling plate 441. A cooling channel 443 is provided inside the cooling plate 441. The cooling channel 443 is connected to the outside through the inlet and outlet. The heat insulation cover 442 is placed on the cooling plate 441. The side of the heat insulation cover 442 facing the cooling plate 441 has an inner cavity. The mixing tube 43 is disposed in the inner cavity. The input end of the mixing tube 43 extends out from one side of the heat insulation cover 442 and is connected to the dual glue tube dispensing assembly 42. The output end of the mixing tube 43 extends out from the other side of the heat insulation cover 442 and is connected to the dispensing assembly 45. Therefore, the refrigerant flows through the cooling channel 443, resulting in a lower surface temperature for the cooling plate 441. This allows for heat exchange with the adhesive in the mixing tube, absorbing the heat generated during AB adhesive mixing and slowing down the curing speed and flowability of the AB adhesive. The insulation cover 442 encloses the mixing tube 43, creating a relatively closed, low-temperature environment. This helps prevent interference from high-temperature external air and reduces energy loss during cooling. Preferably, in this embodiment, the cooling plate 441 cools the AB adhesive to -30°C. Preferably, the insulation cover 442 in this embodiment is made of iron, thus ensuring insulation performance by using an iron cover with poor thermal conductivity but good insulation properties.
[0041] Optionally, the cooling channel 443 in this embodiment includes a plurality of straight pipe channels 4431 and bent pipe channels 4432. The plurality of straight pipe channels 4431 are arranged sequentially at intervals along the length or width direction of the cooling plate 441, and adjacent straight pipe channels 4431 are connected by bent pipe channels 4432. This increases the heat exchange area between the refrigerant and the cooling plate, thereby improving heat exchange efficiency and enhancing the heat exchange effect.
[0042] In this embodiment, a refrigerant circulation assembly (not shown) is also included, which is connected to the inlet and outlet of the cooling plate 441 via pipes. Thus, the refrigerant circulation assembly enables refrigerant circulation, ensuring the cooling effect of the AB adhesive within the mixing pipe 43.
[0043] Specifically, the refrigerant circulation assembly includes a refrigerant circulation pump and a heat exchanger. The refrigerant circulation pump, heat exchanger, and cooling plate are connected by pipes and together form a circulation loop. Thus, the refrigerant circulation pump drives the refrigerant to circulate within the loop, and the heat exchanger exchanges heat with the refrigerant, allowing the refrigerant to be recycled. The refrigerant can be water, R404a, R12, or R134a, etc. It should be noted that the specific structure and connection relationships of the refrigerant circulation pump and heat exchanger are existing technologies and will not be described in detail here.
[0044] In this embodiment, the dispensing assembly 45 includes a dispensing head 452 and a dispensing valve 451 for controlling the dispensing amount and dispensing volume. The dispensing valve 451 is slidably mounted on the XZ-axis two-axis moving module 41. The input end of the dispensing valve 451 is connected to the output end of the mixing tube 43, and the output end of the dispensing valve 451 is connected to the dispensing head 452. Thus, the dispensing amount and dispensing volume are controlled by the dispensing valve 451, and the dispensing head 452 accurately dispenses the adhesive to the target position. Optionally, the Z-axis linear slide module 412 is provided with a slide rail extending vertically, and the dispensing valve 451 is slidably mounted on the slide rail by a slider. Thus, the height of the dispensing valve can be manually adjusted by the cooperation of the slider and the slide rail. In this embodiment, the dispensing head 452 is a dispensing needle, and the dispensing valve 451 is a pneumatic dispensing valve. Of course, in other alternative embodiments, the dispensing valve can be an electric dispensing valve. It should be noted that the specific structure and composition of pneumatic and electric dispensing valves are existing technologies and will not be elaborated here.
[0045] In this embodiment, a control device is also included, which is electrically connected to the Y-axis moving module, the XZ-axis moving module, the dual-tube glue supply assembly, the refrigerant circulation assembly, and the dispensing assembly.
[0046] During the production and assembly of foldable screen phones, the foldable screen phone with its hinge locked is placed into a fixed fixture. The Y-axis moving module transports the foldable screen phone to the dispensing position. Simultaneously, the glue supply driver drives the push rod to extrude glue A from the first glue tube and glue B from the second glue tube into the mixing tube. The AB glues flow through the mixing blades in the mixing tube for uniform mixing. At the same time, the cooling component cools the AB glue. The mixed AB glue flows from the output end of the mixing tube into the dispensing valve, which controls the glue dispensing. With the cooperation of the XZ axis moving modules and the Y-axis moving module, the dispensing component moves the foldable screen phone on the fixed fixture to dispense glue. After dispensing, the Y-axis moving module transports the foldable screen phone back to the pick-up and unloading position. Production personnel then remove the glued foldable screen phone, thus completing the glue dispensing process at the hinge position of the foldable screen phone.
[0047] Compared with the prior art, the automatic dispensing machine for foldable screen phones provided by this utility model transports the foldable screen phone 50 to be dispensed through the Y-axis moving module 30, and provides A glue and B glue respectively through the dual glue supply assembly 42. The A and B glues are mixed by the mixing tube 43, and the mixed A and B glues are then applied to the rotating shaft through the dispensing assembly 45, thereby realizing automatic dispensing of the foldable screen phone 50. Furthermore, by setting a cooling assembly 44 at the mixing tube 43, the heat generated during the mixing of A and B glues is absorbed, which slows down the curing speed of the A and B glues and reduces the fluidity of the A and B glues. This allows the A and B glues to be mixed more thoroughly and evenly in the mixing tube 43. Moreover, the temperature of the A and B glue applied to the rotating shaft is lower, and the curing time is longer. It has good adhesion within a certain period of time, which helps to better carry out subsequent bonding processes, ensures the bonding and sealing effect of the rotating shaft cover, and thus enables the rotating shaft of the foldable screen phone to meet good sealing requirements.
[0048] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments and claims of this application are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that, unless otherwise stated, “a plurality” refers to two or more; the terms “first,” “second,” “third,” etc., are used only to distinguish and not to describe a particular order or sequence, nor should they be construed as indicating or implying relative importance. The term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description relates to drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of this application, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0049] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. An automatic dispensing machine for foldable screen mobile phones, characterized in that, The device includes a frame, a Y-axis moving module, a fixing fixture for placing a foldable screen phone, and a moving dispensing device. The fixing fixture is mounted on the frame via the Y-axis moving module. The moving dispensing device is mounted on the frame and located above the Y-axis moving module. The moving dispensing device includes an XZ-axis moving module and a dispensing assembly, a dual-tube dispensing assembly, a cooling assembly, and a mixing tube for uniformly mixing the two adhesives, all mounted on the XZ-axis moving module. The dispensing assembly is connected to the dual-tube dispensing assembly via the mixing tube. The cooling assembly is located between the dispensing assembly and the dual-tube dispensing assembly and encloses the mixing tube.
2. The automatic dispensing machine for foldable screen mobile phones according to claim 1, characterized in that, The mixing tube includes a tube body and mixing blades disposed within the tube body. The mixing blades include a central shaft and a plurality of helical blade units disposed on the circumferential surface of the central shaft. The plurality of helical blade units are arranged sequentially along the axial direction of the central shaft.
3. The automatic dispensing machine for foldable screen mobile phones according to claim 2, characterized in that, The two adjacent helical blade units rotate in opposite directions, and there is a misalignment angle between the two adjacent helical blade units.
4. The automatic dispensing machine for foldable screen mobile phones according to claim 1, characterized in that, The cooling assembly includes a cooling plate and an insulation cover. The cooling plate is disposed on the XZ two-axis moving module. A refrigerant inlet and outlet are provided on one side of the cooling plate. Cooling channels are provided inside the cooling plate, and the cooling channels are connected to the outside through the inlet and outlet. The insulation cover is disposed on the cooling plate. The side of the insulation cover facing the cooling plate has an inner cavity. A mixing tube is disposed in the inner cavity. The input end of the mixing tube extends out from one side of the insulation cover and is connected to the dual-tube glue supply assembly. The output end of the mixing tube extends out from the other side of the insulation cover and is connected to the dispensing assembly.
5. The automatic dispensing machine for foldable screen mobile phones according to claim 4, characterized in that, It also includes a refrigerant circulation assembly, which is connected to the inlet and outlet of the cooling plate via pipes.
6. The automatic dispensing machine for foldable screen mobile phones according to claim 5, characterized in that, The refrigerant assembly includes a refrigerant circulation pump and a heat exchanger, which are connected by pipes and together form a circulation loop.
7. The automatic dispensing machine for foldable screen mobile phones according to claim 1, characterized in that, The dispensing assembly includes a dispensing head and a dispensing valve for controlling the dispensing amount and dispensing volume. The dispensing valve is slidably disposed on the XZ two-axis moving module. The input end of the dispensing valve is connected to the output end of the mixing tube, and the output end of the dispensing valve is connected to the dispensing head.
8. The automatic dispensing machine for foldable screen mobile phones according to claim 1, characterized in that, The dual-tube glue supply assembly includes a dual-tube fixing bracket, a first glue tube, a second glue tube, and a glue supply driver. The dual-tube fixing bracket is disposed on the XZ two-axis moving module. The first and second glue tubes are disposed on the dual-tube fixing bracket. The glue outlets of the first and second glue tubes are connected to the input end of the mixing tube. The glue supply driver is disposed at the end of the first and second glue tubes away from the mixing tube and drives the glue to be extruded from the first and second glue tubes.
9. The automatic dispensing machine for foldable screen mobile phones according to claim 1, characterized in that, The fixing fixture includes a fixed base, a mobile phone contouring mold, and a limiting plate. The fixed base is disposed on the Y-axis moving module, the mobile phone contouring mold is disposed on the fixed base, and the limiting plate is rotatably disposed on the mobile phone contouring mold. The mobile phone contouring mold and the limiting plate enclose and define a fixing cavity, and the fixing cavity matches the shape of the foldable screen mobile phone after folding.
10. An automatic dispensing machine for foldable screen mobile phones according to claim 9, characterized in that, A handle is provided on the side of the limiting plate away from the mobile phone mold.