CN120984503A - An automatic adhesive dispensing and curing machine for optical lenses - Google Patents
An automatic adhesive dispensing and curing machine for optical lensesInfo
- Publication number
- CN120984503A CN120984503A CN202511320273.9A CN202511320273A CN120984503A CN 120984503 A CN120984503 A CN 120984503A CN 202511320273 A CN202511320273 A CN 202511320273A CN 120984503 A CN120984503 A CN 120984503A
- Authority
- CN
- China
- Prior art keywords
- dispensing
- glue
- lens barrel
- lens
- curing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/12—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Coating Apparatus (AREA)
Abstract
本发明提供了一种光学镜头自动点胶固化机，涉及光学镜头设备技术领域，本发明包括工作台；转移座用于放置并固定镜筒，且转移座能够在驱动结构的作用下沿工作台的Y轴方向移动，以将镜筒移动至点胶位置；点胶头包括点胶杆、夹持板及调节件，调节件能够驱动夹持板相对张开或靠拢，以夹持于镜筒的外壁；其中，至少一个夹持板上设有喷胶通道，喷胶口能够伸入镜筒外壁的安装槽内，并通过由安装槽连通至镜片与镜筒的接触区域的连通孔，将胶水注入至接触区域；固化件安装于滑移架上，UV光源能够在喷胶口完成注胶并移开后，对连通孔处的胶水进行光照固化，本发明与现有技术相比，能够显著提升胶层形貌的一致性和批次间的重复性，同时有效降低设备成本及停机率。
This invention provides an automatic dispensing and curing machine for optical lenses, relating to the field of optical lens equipment technology. The invention includes a worktable; a transfer seat for placing and fixing the lens barrel, and the transfer seat can move along the Y-axis of the worktable under the action of a drive structure to move the lens barrel to the dispensing position; a dispensing head including a dispensing rod, a clamping plate, and an adjusting component, the adjusting component driving the clamping plate to open or close relative to each other to clamp the outer wall of the lens barrel; wherein at least one clamping plate is provided with a spraying channel, the spray nozzle can extend into the mounting groove on the outer wall of the lens barrel, and inject adhesive into the contact area through a connecting hole from the mounting groove to the contact area between the lens and the lens barrel; a curing component is mounted on a sliding frame, and a UV light source can perform photocuring on the adhesive at the connecting hole after the spray nozzle completes the dispensing and is removed. Compared with the prior art, this invention can significantly improve the consistency of the adhesive layer morphology and batch repeatability, while effectively reducing equipment costs and downtime.
Description
Technical Field
The invention relates to the technical field of optical lens equipment, in particular to an automatic dispensing and curing machine for an optical lens.
Background
The optical lens is used as a key component in an imaging system, and the assembly quality of the optical lens is directly related to the imaging definition and the stability of the whole machine. The existing lens dispensing process generally comprises the steps of feeding, dispensing, UV curing and the like, wherein the precision and stability of the dispensing process are particularly important in the whole process. To ensure a firm connection and a reliable seal between the lens and the barrel, it is necessary to form a uniform and continuous glue layer in the contact area of the two.
However, in the related art, the dispensing machine generally forms a glue path by moving the dispensing head along the contact position of the lens and the lens barrel, and this way puts a very high precision requirement on the movement of the moving frame to which the dispensing head is attached. Because the lens barrel is small in size, short in moving stroke and low in fault tolerance, high-precision movement is difficult to maintain for a long time in actual operation, and the problems of uneven glue layers, broken glue paths, partial glue shortage and the like are often caused. In addition, the glue dispensing head can overflow or break due to fluctuation of speed and unstable pressure in the moving process, so that the consistency of glue dispensing is reduced, and the subsequent UV curing effect and the bonding strength are further affected.
Disclosure of Invention
The application aims to provide an automatic dispensing and curing machine for an optical lens, which aims to solve the technical problems in the prior art.
The application provides an automatic dispensing and curing machine for an optical lens, which adopts the following technical scheme:
An automatic dispensing and curing machine for an optical lens, comprising:
A work table;
the transfer seat is used for placing and fixing the lens barrel, and can move along the Y-axis direction of the workbench under the action of the driving structure so as to move the lens barrel to a dispensing position;
the glue dispensing head is arranged on a sliding frame capable of moving along the X axis, the Y axis or the Z axis under the action of a driving structure and can move to the position right above the lens barrel on the transfer seat, the glue dispensing head comprises a glue dispensing rod, clamping plates and an adjusting piece, the clamping plates are at least arranged at the bottom ends of the glue dispensing rod in pairs, and the adjusting piece can drive the clamping plates to open or close relatively so as to clamp the outer wall of the lens barrel;
the curing piece is arranged on the sliding frame and comprises a UV light source, and the UV light source can carry out illumination curing on the glue at the communication hole after the glue injection opening is completed and removed.
Preferably, a glue sucking channel is arranged on at least one clamping plate of the dispensing head, the glue sucking channel can automatically realize the communication of an overflow seam at the maximum rising point of the top glue of the contact area of the lens and the lens barrel when the clamping plate clamps the outer wall of the lens barrel, a micro flow valve is arranged on the glue sucking channel and is electrically connected with a driving source of the glue spraying port through a controller, and when the micro flow valve detects fluid flow, the micro flow valve can send a closing instruction to the driving source through the controller so as to realize the automatic closing of the glue spraying port.
Preferably, a central pressing rod is arranged at the central position of the bottom of the dispensing rod, and a first rubber block is arranged at the bottom end of the central pressing rod;
And/or the clamping plates are provided with a pair of glue spraying ports and the glue sucking channels, which are respectively positioned on the pair of clamping plates, and the glue spraying ports and the inlets of the glue sucking channels are arranged oppositely;
and/or one side, close to the inner wall, of the bottom of the clamping plate is provided with a rounding angle;
And/or, the clamping plate is provided with a protruding part, the protruding part is mutually inserted and matched with a mounting groove of the outer wall of the lens cone, the glue spraying opening is arranged on the protruding part, after the protruding part is inserted into the mounting groove, the glue spraying opening is aligned and communicated with the communication hole, a part of the glue sucking channel is formed on the other protruding part, and after the protruding part is inserted into the mounting groove, the glue sucking channel is aligned and communicated with the overflow joint;
and/or the glue spraying channel is provided with a horizontal section, and the horizontal section is arranged along one side close to the glue spraying opening in a gradual shrinkage way.
Preferably, the first rubber block is rotationally clamped on the central compression bar by taking the axis of the central compression bar as a rotation axis, and is of an annular structure, a second rubber block is rotationally arranged in the first rubber block, a rotation motor is embedded on the central compression bar, and the second rubber block is fixedly connected to an output shaft of the rotation motor so as to drive the lens to rotate under the driving of the rotation motor.
Preferably, the transfer seat is rotatably mounted on a base, a rotating piece for driving the transfer seat to rotate is arranged on the base, a support plate is mounted on the base, a laser emitter and a laser receiver are arranged on the support plate, the laser emitter is used for emitting laser to the side wall of the lens cone, an alignment point is arranged on the side wall of the lens cone, when the laser of the laser emitter is projected to the alignment point, the laser receiver receives a laser signal reflected or attenuated by the alignment point and transmits a detection result to a control module, and the control module controls the rotating piece to stop rotating, so that automatic alignment of the lens cone is realized;
and/or the transfer seat is fixedly provided with a limit column which is used for being inserted into the lens cone;
and/or the top of the transfer seat is provided with a negative pressure hole at a position opposite to the lens barrel.
Preferably, the limiting column is provided with a jacking piece, the output end of the jacking piece is rotationally provided with a third rubber block, the third rubber block is used for abutting against the bottom of the lens to jack the lens, and the third rubber block, the first rubber block and the second rubber block are arranged along the same axis.
Preferably, the third rubber block is lifted upwards by a distance of 100-500 μm.
Preferably, the top of the clamping plates is provided with a slot body, the slot body is internally provided with an elastic sheet, one end of the elastic sheet is fixedly connected with the bottom of the dispensing rod, and the other end of the elastic sheet is fixedly connected with the slot body of the clamping plates, so that the clamping plates are in an open state when in an initial position, wherein:
the adjusting piece comprises a sliding ring and an electric push rod, the sliding ring is slidably sleeved on the dispensing rod, a cylinder body of the electric push rod is fixedly installed on the dispensing rod, and the output end of the electric push rod is fixedly connected with the sliding ring.
Preferably, the elastic sheet is arranged in a V shape, and the middle part of the V-shaped elastic sheet is provided with an arch deformation part.
Preferably, the device further comprises a feeding assembly, a transferring assembly, a carrying assembly, a dispensing assembly and a UV curing assembly, wherein:
The feeding assembly comprises a bin, wherein the bin is arranged at one side of the middle part of the workbench, and a tray is placed in the bin in a stacking manner;
The transfer assembly is arranged along the Y-axis direction of the middle part of the workbench and is used for transferring the trays in the bin to the transfer position of the transfer assembly, the transfer assembly comprises a pair of transfer frames, each transfer frame is provided with a pair of clamping cylinders, and the pair of transfer frames are arranged on a gate-type frame erected along the X-axis direction of the workbench and can move along the X-axis, Y-axis or Z-axis direction under the action of the driving structure so as to clamp and transfer the lens barrel to a corresponding transfer seat after moving;
The transfer seats are respectively provided with a pair of lens barrels on two sides of the feeding assembly and are used for receiving the conveying of the conveying assembly;
The dispensing assembly comprises the dispensing heads and the sliding frames, is arranged in pairs and is positioned at the other side of the gate-type frame and is used for correspondingly dispensing the lens barrels on the transfer seats at two sides of the workbench;
the UV curing assemblies are arranged in pairs and located at two sides of the workbench, the transfer seats are far away from one side of the storage bin, and the UV curing assemblies are used for carrying out UV illumination curing on contact areas of the lens and the lens cone from the upper side of the lens cone after dispensing is completed.
The invention has the following advantages and beneficial effects:
According to the invention, the glue spraying channel is integrated on the clamping plate of the glue dispensing head, and the glue spraying port is directly inserted into the mounting groove on the outer wall of the lens barrel in the clamping state and is axially aligned with the communication hole, so that the passive alignment glue injection taking the mounting groove of the lens barrel as a physical reference is realized. The structural alignment converts the glue injection action from the high-precision dependence on the long stroke of the sliding frame into the structure matching and glue injection at the same fixed position, thereby eliminating the dynamic errors caused by the accumulated tolerance, the return clearance, the speed fluctuation and the acceleration and deceleration caused by the long stroke movement of the sliding frame. In actual production, the requirements on the positioning precision, response speed and control complexity of the moving element are obviously reduced, the calibration frequency and maintenance workload are reduced, and the equipment cost and the shutdown rate are correspondingly reduced.
On the other hand, the glue spraying port directionally injects glue solution into the contact surface through a limited mounting groove-communicating hole channel, the combination of channel constraint and axial injection utilizes pressure drive and tension coupling, so that the glue solution is preferentially spread in the limited interface and automatically fills the contact area, and the free surface large-area flow and edge spreading are restrained, thereby reducing local glue piling, glue breaking or glue shortage, forming a continuous annular glue layer with controllable thickness, and improving the consistency of the appearance of the glue layer and the repeatability between batches.
(3) The curing part (UV light source) and the dispensing head are arranged in the same frame, so that the communication hole is immediately irradiated in situ for curing after the glue injection, and the appearance of the glue path can be locked before the obvious gravity sagging or backflow of the glue solution occurs. On one hand, the same-frame curing ensures the stability of optical path, incident angle and irradiation energy, reduces uneven curing caused by the change of curing position or irradiation angle, and obviously reduces the probability of interface displacement and bubble trapping, thereby improving bonding strength, sealing property and long-term reliability.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of an automatic dispensing and curing machine for an optical lens.
Fig. 2 is a schematic view for showing the structure of the transfer base and the base.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic view for showing a structure in which the carrying assembly and the dispensing assembly are mounted on the door frame.
Fig. 5 is a schematic diagram for showing the overall structure of the dispensing assembly.
Fig. 6 is a schematic view for showing the structure of the dispensing head.
Fig. 7 is a cross-sectional view intended to show the dispensing head.
Fig. 8 is an enlarged view of a portion B in fig. 7.
Fig. 9 is an exploded view intended to show the dispensing head, barrel, transfer mount and base.
Fig. 10 is a schematic diagram of the overall structure intended to show the handling assembly.
Fig. 11 is a schematic diagram of the overall structure intended to show a transfer assembly.
Marked in the figure as:
100. a work table; 110, a door-shaped frame; 200, a transfer seat; 210, base, 220, rotating parts, 230, support plates, 231, laser emitters, 232, laser receivers, 240, limit posts, 250, negative pressure holes, 260, jacking parts, 270, third rubber blocks, 300, dispensing components, 310, sliding frames, 320, dispensing heads, 321, dispensing rods, 322, clamping plates, 3220, rounding corners, 32201, groove bodies, 3221, spraying channels, 32211, horizontal sections, 3222, spraying ports, 323, adjusting parts, 3231, sliding rings, 3232, electric push rods, 330, curing parts, 331, UV light sources, 340, suction channels, 341, micro flow valves, 350, central pressure rods, 3501, rotating motors, 351, first rubber blocks, 3511, second rubber blocks, 360, protruding parts, 370, elastic sheets, 371, arch-shaped deformation parts, 380, cameras, 400, feeding components, 410, bins, 420, material trays, 500, groove bodies, 510, transferring trays, 600, carrying components, 610, carrying frames, 620, curing parts, 331, UV light sources, 340, suction channels, 341, micro flow valves, 350, central pressure rods, 3501, rotating motors, 351, first rubber blocks, 3511, second rubber blocks, 360, protruding parts, 370, elastic sheets, 371, arched deformation parts, 380, cameras, 400, feeding components, 410, bin assemblies, 420, material trays, 500, 850, transporting trays, transporting components, storing devices, and UV.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In various embodiments of the present application, "proximal" and "distal" refer to the location of the components relative to the user's far and near position in the environment of use, wherein the end closer to the user is designated as "proximal" and the end farther from the user is designated as "distal".
The following describes an automatic dispensing and curing machine for an optical lens according to an embodiment of the present application in detail through specific embodiments and application scenarios thereof with reference to fig. 1 to 11.
An automatic dispensing and curing machine for an optical lens comprises a workbench 100, wherein an outer cover (not shown in the figure) is arranged on the workbench 100, and a switch door is arranged on the outer cover so as to ensure the tightness of an internal environment and reduce the influence of dust and external illumination on a process. The dustproof guide plate and the replaceable filter element can be arranged in the outer cover, so that the cleanliness of long-term stability is ensured. The transfer seat 200 is used for placing and fixing the lens barrel 800, and the transfer seat 200 moves along the Y-axis direction of the workbench 100 under the action of the driving structure through the guide rail, so that the lens barrel 800 is accurately sent to the dispensing position, the repeated positioning precision is ensured, and the cooperation of the subsequent dispensing and curing processes is facilitated.
Referring to fig. 1 and 5, the dispensing head 320 is mounted on a sliding frame 310 that can move along X, Y or Z-axis direction under the action of a driving structure, and the sliding frame 310 can be driven by a screw rod+servo, an electric linear module or a precision ball guide rail to cooperate with a stepping/servo motor, so as to achieve both speed and positioning accuracy. The dispensing head 320 is connected with a dispensing cylinder through a connecting piece, the dispensing cylinder is connected with a glue source through a high-pressure corrosion-resistant pipeline, a metering pump or a piston pump is arranged in the system to provide stable glue outlet pressure, and a check valve, a buffer tank and a pressure sensor are arranged on the pipeline to inhibit back suction and pulsation.
In this embodiment, a camera 380 is also mounted on the sliding frame 310, and the camera 380 is preferably a CCD camera. The camera 380 captures and acquires image information in advance of the relative positions of the lens barrel 800 and the lens 850 before the movement of the slide 310, thereby realizing real-time detection and accurate positioning of the lens barrel 800 and the lens 850. Based on the positioning information, the control system can adjust the moving path of the sliding frame 310, so that the sliding frame 310 can avoid position deviation in the moving process, and the stability of the sliding frame at the target position is ensured.
Further, the position information obtained by the camera 380 can be further used for assisting in calibrating the dispensing head 320, so that the dispensing head 320 can accurately align with the mounting position of the lens barrel 800 and perform dispensing operation, thereby avoiding offset of dispensing or uneven adhesive layer caused by inaccurate position. Through the arrangement, the precision and consistency of the dispensing process are improved, the requirement of manual intervention is reduced, and the production efficiency and the product yield are ensured.
Referring to fig. 5-8, the dispensing head 320 includes a dispensing rod 321, a clamping plate 322, and an adjusting member 323, where the dispensing rod 321 is used to mount the clamping plate 322, and the adjusting member 323 is in transmission connection with the clamping plate 322 and can drive the clamping plate 322 to move in a closing direction under a controlled state. Through the structure, the clamping plate 322 can be reliably clamped on the outer wall of the lens barrel 800, so that the fixing effect of the lens barrel 800 in the dispensing process is ensured, and meanwhile, the glue injection is stable.
Specifically, one of the clamping plates 322 is provided with a glue spraying channel 3221, the glue spraying channel 3221 extends from the inside of the clamping plate 322 and is provided with a glue spraying opening 3222 at the protruding portion 360, the glue spraying opening 3222 can enter the mounting groove 810 of the outer wall of the lens barrel 800 in the clamping state, and glue is directionally injected into the contact area through the communication hole 820 communicated to the contact area of the lens 850 and the lens barrel 800 by the mounting groove 810. In different embodiments, to ensure alignment and tightness, the mating surfaces of the glue spraying opening 3222 and the mounting groove 810 may be designed to mate with a guiding tongue and a guiding groove, or a soft sealing ring may be added to form a slight seal when the glue spraying opening 3222 is inserted, so as to reduce backflow and leakage in the glue injection process, and the diameter of the opening, the insertion depth and the insertion angle of the glue spraying opening 3222 may be adjusted according to different lens barrel 800 structures, so as to control the flow, the pressure and the shape of the glue line.
It should be noted that the communication hole 820 of the lens barrel 800 is preferably designed to gradually rise upward at the beginning of design and has a curve and a necking structure, the geometry forms a limited channel from bottom to top during glue injection, and the gradual necking and curve action of the channel can inhibit the rising of bubbles and the backflow of colloid, reduce the free surface flow, and thus reduce the backflow and overflow caused by interfacial tension. This design requires that a certain injection pressure be provided to overcome the necking resistance during injection, and this controlled pressure injection allows glue to fill the communication holes 820 and minimize bubble entrainment under the force of gravity. The application of transient UV curing after removal of the clamping plate 322 "locks" the gum road topography against gravity sagging or reflow prior to curing.
The curing member 330 is mounted on the sliding frame 310, and is preferably connected to the sliding frame 310 by an adjustable rotating frame 900 to adjust the angle, the curing member 330 includes a UV light source 331 and a heat dissipation/shading component, and the mounting angle of the UV light source 331 and the distance from the lens barrel 800 can be adjusted by a bolt adjustment or an electric adjustment mechanism to match the curing process parameters of different gluewater. The same frame arrangement of the curing part 330 and the dispensing head 320 can realize that the glue spraying opening 3222 retreats after the glue injection is completed and is immediately cured by the in-situ illumination at the preset position by the UV light source 331, and meanwhile, the light shield and the outer cover of the curing part 330 are interlocked to ensure the optical safety of the curing process. In order to ensure the consistency of solidification, a collimator or a lens component can be added in the light path to control the irradiation uniformity, and the consistency of the energy and time of each solidification is ensured through power sensing and timing control, so that the bonding strength and the stability of the produced products are improved.
It should be noted that, the driving structure, the lifting member 260, and other structures in this embodiment may select various implementation manners such as screw driving, matching of a servo/stepper motor with a guide rail, a cylinder, or an electric push rod according to actual requirements. For actions requiring high positioning accuracy and controllable speed (e.g. positioning of the skid 310, fine tuning of the rotating seat) a servo/stepper motor + screw or ball screw is preferred, and for situations focusing on fast switching or simple clamping actions a cylinder or electric push rod may be used. The driving piece and the controller form closed-loop control by matching a servo driver or a PLC/motion controller with an encoder or a limit switch, so that the requirements on precision and reliability can be met under different implementation modes, and the driving modes belong to the prior art and are not described in detail herein.
Referring to fig. 7 and 8, a glue sucking channel 340 is provided on one of the clamping plates 322 of the dispensing head 320, and the glue sucking channel 340 may be embedded in the clamping plate 322 through a pipe, or prefabricated in the clamping plate 322, and the rear end of the glue sucking channel 340 is communicated with a recycling glue source or a suction pump through a flexible pipe, so that if excessive glue occurs in the dispensing process, the excessive glue can be timely introduced into the recycling channel, thereby realizing safe disposal after secondary utilization or concentrated collection of the glue, and further avoiding waste and pollution. When the front end of the glue sucking channel 340 clamps the outer wall of the lens barrel 800 by the clamping plate 322, the glue sucking channel can automatically form a communication relationship with an overflow gap 830 at the maximum rising point of the glue at the top of the contact area of the lens 850 and the lens barrel 800, so that the channel has high pertinence and instantaneity for capturing the overflow glue, the glue can be sucked away quickly once generated, and the glue is ensured to be at a preset liquid level.
Further, a micro flow valve 341 or a flow detector is disposed in the glue sucking channel 340, and the detecting device is electrically connected to the controller and forms a closed-loop control with the driving source of the glue spraying opening 3222. When the micro flow valve 341 detects that fluid flow occurs in the channel and the detected value exceeds the preset flow threshold, the controller can immediately send out an instruction to stop the driving source of the glue spraying port 3222 from spraying glue and suck the overflow glue into the channel. Through the dynamic regulation and control process, the phenomenon of glue overflow at the edge of the lens barrel 800 caused by excessive glue injection is avoided, the glue dispensing quantity is ensured to be in a reasonable range, and the glue dispensing precision and the consistency of finished products are improved.
In a specific implementation manner, the micro flow valve 341 or the sensor may adopt various equivalent alternative structures, for example, a detection manner based on micro-capacitance flow sensing may realize a sensitive response to the glue flow rate through capacitance change, a differential pressure type flow sensing may reflect whether the glue overflows through a front-back pressure difference of the channel, and an optical detection manner may utilize a micro optical sensor to perform non-contact monitoring on the existence and the flow rate of the glue in the channel. The detection modes can be flexibly selected or replaced according to production requirements or cost factors, so that the suitability and stability of the whole device under different application environments are ensured.
By arranging the glue sucking channel 340 and the detection and control mechanism matched with the glue sucking channel, the invention realizes the automation, the intellectualization and the closed-loop regulation and control of the glue dispensing process, improves the consistency of the appearance of the glue layer and the repeatability among batches, reduces the glue solution waste and the problem of lens 850 pollution caused by glue overflow, and further improves the production efficiency and the product yield.
Preferably, the center of the bottom of the dispensing rod 321 is integrally formed with a center pressing rod 350, a first rubber block 351 is disposed at the bottom end of the center pressing rod 350, and the first rubber block 351 is used for supporting and positioning the bottom of the lens 850 during the injection, so as to prevent the displacement of the lens 850 during the injection or the jacking process. The bottom surface of the first rubber block 351 is a circular arc shape or an arc surface matched according to the curvature of the lens 850 to increase the contact area and reduce the local stress, thereby avoiding the impression or damage to the lens 850. The material of the first rubber block 351 may be selected from a release treated elastomer with moderate hardness, and the surface may be micro-textured to increase friction and avoid slipping of the lens 850.
Referring to fig. 6, in the present embodiment, the clamping plates 322 are arranged in pairs, the glue spraying openings 3222 and the glue sucking channels 340 are respectively located on the pair of clamping plates 322, the glue spraying openings 3222 and the inlets of the glue sucking channels 340 are arranged oppositely, and the symmetrical arrangement generates a balanced mechanical effect in the clamping process, so that the deflection and inclination risk of the lens barrel 800 can be reduced. The opposite arrangement enables the glue injection and the glue suction to control the glue in the forward and reverse directions on the same section, so that the excessive glue is instantly sucked back in the injection process and the stability of the glue surface is maintained, thereby effectively reducing the offset or unbalanced stress of the lens 850 caused by asymmetric glue injection.
As an alternative embodiment, a rounded corner 3220 (R angle) is provided at a side of the bottom of the clamping plate 322 near the inner wall, and the rounded corner 3220 plays a role in guiding and buffering when clamping to the lens barrel 800, reduces cutting stress and scratch risk when contacting with the lens barrel 800, and facilitates smooth introduction when clamping, and reduces shake and impact. The radius of the chamfer 3220 can be optimally designed according to the material of the lens barrel 800 and the thickness of the groove edge, so that the clamping force and the positioning precision are both ensured while the guiding effect is ensured.
As an alternative embodiment, the clamping plate 322 has a protruding portion 360, where the protruding portion 360 is mated with the mounting groove 810 of the outer wall of the lens barrel 800 in a plugging manner, and the protruding portion 360 may be provided with a guiding tongue or a guiding shoulder to achieve a quick and repeatable alignment. The glue spray opening 3222 is disposed on the protrusion 360, so that the glue spray opening 3222 is axially aligned with the communication hole 820 after being inserted into the mounting groove 810, and has a clear positioning surface in the insertion depth to prevent over-deep or under-deep. A portion of the glue channel 340 is formed on the corresponding other protrusion 360, and after being inserted into the mounting groove 810, the glue channel 340 is aligned and communicated with the overflow slit 830, thereby realizing the automatic alignment and sealing cooperation of the injection-back suction on the structure, and reducing the dependence on external vision or additional alignment steps.
As a preferred embodiment, the glue spraying channel 3221 is provided with a horizontal section 32211 at one side close to the glue spraying opening 3222, and the horizontal section 32211 is gradually reduced along the direction close to the glue spraying opening 3222, and the reduced mouth of the horizontal section 32211 is beneficial to forming a controlled cut surface at the glue spraying opening 3222, so as to reduce burrs and drops of the glue outlet end. The gradual shrinkage makes the flow velocity and the pressure drop balanced near the nozzle by changing the sectional area of the channel, thereby being beneficial to forming a continuous glue line with clear break points and reducing the phenomenon of wire drawing or residual dripping after glue breaking.
Referring to fig. 7, the first rubber block 351 is clamped on the central pressing rod 350 by taking the axis of the central pressing rod 350 as a rotation axis and has an annular structure, the first rubber block 351 and the central pressing rod 350 can be in anti-disengagement fit with each other through a clamping groove and a clamping ring, and the cross section of the clamping groove or the clamping ring can be T-shaped or other anti-disengagement cross sections so as to enhance the assembly reliability. The second rubber block 3511 is arranged inside the first rubber block 351, the second rubber block 3511 is fixedly connected to an output shaft of a rotating motor 3501 embedded in the central pressing rod 350, and the rotating motor 3501 (preferably a stepping motor or a servo motor) drives the second rubber block 3511 to rotate relative to the first rubber block 351 under driving, so that micro-rotation of the lens 850 is achieved. During glue injection, the slow constant speed or micro-stepping rotation of the rotating motor 3501 is controlled, and the centrifugal force is utilized to promote the glue solution to be uniformly distributed at the edge of the lens 850, so that the consistency of the thickness of the glue layer is improved, and the flow characteristics and the molding requirements of the glue solution can be considered by making a rotating speed curve.
Referring to fig. 2 and 3, the transfer base 200 is rotatably mounted on the base 210, two sides of the base 210 are vertically mounted with support plates 230, each support plate 230 is mounted with a laser emitter 231 and a laser receiver 232, and the dual-laser configuration of the two support plates 230 provides redundancy detection and bidirectional alignment evaluation, so as to improve the reliability and anti-interference capability of automatic alignment. The laser transmitter 231 emits parallel or collimated light beams to the side wall of the lens barrel 800, the alignment point 840 of the side wall of the lens barrel 800 can be a mark, a reflective paste or a structural feature, the laser receiver 232 detects the reflection intensity or the position deviation from the alignment point 840, the detection result is amplified and sent to the control module, and the control module controls the rotating member 220 to stop rotating and sends a positioning completion signal according to a set algorithm (such as PID or threshold comparison). In order to improve the anti-interference capability, the system can add multiple sampling consistency judgment and fault tolerance processing in the detection logic, and can perform a calibration process before starting alignment to compensate the installation error of the device. In this embodiment, the rotating member 220 is connected to the transfer seat 200 by a motor, and the pair of pulleys are respectively connected to the transfer seat 200 and a shaft of the motor, and the pair of pulleys and the belt are located in the base 210 and rotate to drive the transfer seat 200 through rotation of the motor.
In some embodiments, the transfer stand 200 is fixedly provided with a limiting post 240, and the limiting post 240 is fixedly connected to the transfer stand 200 and inserted into the lens barrel 800 when the lens barrel 800 is loaded, so as to perform the functions of quick positioning and torsion resistance. The material and the cross-section shape of the limiting post 240 can be designed according to the material and the wall thickness of the lens barrel 800, and if necessary, the outer surface of the limiting post 240 is covered with a soft anti-slip sleeve or a buffer ring is arranged to avoid surface damage caused by direct metal collision.
As an alternative embodiment, a negative pressure hole 250 is provided at a position of the top of the transfer stand 200 facing the lens barrel 800, the negative pressure hole 250 is connected to an external negative pressure source through a catheter, and an adsorption force is formed at the top of the transfer stand 200 to perform auxiliary adsorption fixation on the lens barrel 800 when the negative pressure source works. The negative pressure adsorption can temporarily stabilize the position of the lens barrel 800 before clamping, and can cooperate with the limit post 240 to jointly ensure the clamping stability, and in order to prevent the damage of the negative pressure to the lens 850 or the tiny components, a filter screen and a current limiting section can be added at the negative pressure hole 250 to control the adsorption area and the adsorption force.
Preferably, the lifting member 260 is provided on the limiting post 240, the lifting member 260 is an electric push rod in this embodiment, a piston rod of the electric push rod is rotatably provided with a third rubber block 270, and the third rubber block 270 is used for abutting against the bottom of the lens 850 and micro-lifting the lens 850, so that a micro-gap is formed between the lens 850 and the lens barrel 800, so that the glue solution is uniformly distributed along the gap by centrifugal force or capillary action under rotation driving. The third rubber block 270, the first rubber block 351 and the second rubber block 3511 are disposed along the same axis, so as to ensure the coaxiality of the jacking-supporting-rotating actions and avoid the lens 850 jamming caused by decentration. In this embodiment, the rotating motor 3501 preferably adopts a stepping motor to precisely control the rotation speed and the rotation angle, and the small step distance of the stepping motor helps to avoid the rotation of the lens 850 with too fast or too large angle, so as to prevent the lens 850 from being blocked or from being impacted, and further realize stably driving the lens 850 to rotate so as to promote the homogenization of the glue path and the penetration of the glue solution into the micro-gap between the lens 850 and the lens barrel 800 to enhance the adhesion.
Preferably, to achieve both the accuracy of lens 850 installation and the jacking effect, the jacking distance of the third rubber block 270 is defined to be within the range of 100 μm-500 μm, and more suitable subdivision values (for example, alternative values of 100 μm, 200 μm, 300 μm, 400 μm, 500 μm, etc.) can be selected according to the thickness of the lens 850, the inner diameter of the lens barrel 800, and the characteristics of the adhesive used, and the jacking of this magnitude can provide enough clearance to facilitate rotation and glue distribution, and can avoid the influence of excessive jacking on the axial positioning and optical center offset of the lens 850, thereby improving the uniformity of the glue layer while ensuring the accuracy of installation.
Referring to fig. 6 and 7, a groove 32201 is formed at a middle position of a top of a pair of clamping plates 322 to mount the elastic sheet 370, the groove 32201 not only plays a role of avoiding the elastic sheet 370, so that the clamping plates 322 can be attached to a bottom wall of the dispensing rod 321 and form a stable force transmission path in a closed state, but also has a geometry of the groove 32201 and the installation position of the elastic sheet 370 optimized to ensure that the clamping plates 322 are in an open state and have a sufficient open angle at an initial position to facilitate insertion of the lens barrel 800. One end of the elastic sheet 370 is fixed at the bottom of the dispensing rod 321, and the other end is fixed in the groove 32201 of the clamping plate 322, and the material and thickness of the elastic sheet 370 are selected to provide proper restoring force on the premise of not generating fatigue damage.
The adjusting piece 323 comprises a sliding ring 3231 and an electric push rod 3232, wherein the sliding ring 3231 is slidably sleeved on the dispensing rod 321, a cylinder body of the electric push rod 3232 is fixedly arranged on the dispensing rod 321, the output end of the electric push rod 3232 is fixedly connected with the sliding ring 3231, when the adjusting piece 323 works, the electric push rod 3232 pushes the sliding ring 3231 to move downwards, and the sliding ring 3231 acts on the clamping plate 322, so that the clamping plate 322 is guided to fold by overcoming the elastic force of the elastic sheet 370 to clamp the lens barrel 800. In order to adapt to different implementation manners, the present embodiment also illustrates that the electric push rod 3232 can be replaced by an air cylinder or other linear driver, and the force adjustment and the travel limitation are implemented in the control system through parameter setting, so as to avoid damage to the lens barrel 800 caused by excessive clamping force.
Preferably, the spring plate 370 is V-shaped, and an arch-shaped deformation section can be provided in the middle of the V-shaped spring plate 370 to increase the opening angle and the deformation range, and the V-shaped structure provides a preload in the initial state and achieves a larger opening stroke and a more linear restoring force characteristic through the deformation section.
As an alternative embodiment, a pair of clamping plates 322 can also be mounted on the dispensing rod 321 in a hinged manner, and driven to rotate and fold by a gear, a connecting rod or a driving motor, and the hinged structure is beneficial to mechanical simplification and reliability improvement, but has a relatively limited top opening range, and is suitable for a scene with small difference of outer diameters of the lens barrel 800. Whether a sliding type clamping mechanism or a hinged type clamping mechanism is adopted, the surface of the lens barrel 800 can be protected by arranging a position limiting part, a soft cushion or a buffer part, and the controllability of the clamping action is ensured.
Referring to fig. 1 to 11, the optical lens automatic dispensing and curing machine integrally includes a feeding assembly 400, a transferring assembly 500, a carrying assembly 600, a dispensing assembly 300 and a UV curing assembly 700, wherein the feeding assembly 400 includes a bin 410, the bin 410 is disposed at a position on one side of the middle of the workbench 100, and is used for stacking a plurality of trays 420. The bin 410 is provided with a Z-axis driving structure, and can be adjusted up and down according to the height of the stacked trays 420, so as to ensure that the upper trays 420 are always at a proper taking and placing height. The height adjustment not only improves the accuracy of the picking and placing actions, but also avoids clamping or carrying deviation caused by overlarge position change of the material tray 420, thereby ensuring the stability and consistency of the feeding process. In some embodiments, the bin 410 may also be provided with a stop post 240 or detent to further ensure flatness and alignment of the trays 420 when stacked.
The transferring assembly 500 is arranged along the Y-axis direction in the middle of the workbench 100, the transferring assembly 500 is provided with a transferring tray 510, the transferring tray 510 can extend into between adjacent trays 420, the upper trays 420 are independently taken down, and the trays 420 in the bin 410 are carried to the material taking position of the carrying assembly 600. The carrying assembly 600 includes a pair of carrying frames 610, and a pair of clamping cylinders 620 or clamping actuators are provided on each carrying frame 610, and the clamping actuators can be opened and closed by driving to clamp or release the lens barrel 800. The carrying frame 610 is disposed on the door-shaped frame 110 erected along the X-axis direction of the table 100, and can move along X, Y or Z-axis three-way under the action of the driving structure, so that the carrying frame 610 can freely complete the taking and placing of the lens barrel 800 within the range of the table 100. With this arrangement, the carrier 610 can be flexibly switched between different stations to accommodate different tacts and process sequences. In a further embodiment, the handling frame 610 may be further matched with a visual recognition system or a position sensor to automatically calibrate the positions of the tray 420 and the lens barrel 800, so as to improve the accuracy and stability of the picking and placing actions, and effectively reduce the yield drop caused by the position deviation in batch operation.
The two sides of the feeding assembly 400 are respectively provided with a pair of transfer seats 200, so that four transfer seats 200 are formed in total, and a four-way dispensing layout is formed. The arrangement can simultaneously complete the positioning and dispensing operation of a plurality of lens barrels 800 in a limited space of the workbench 100, and greatly improves the parallelism and efficiency of production. The four-channel layout can not only realize that glue dispensing and feeding at two sides are not mutually influenced, but also ensure that equipment keeps closed-loop operation, thereby reducing waiting time among working procedures and improving overall productivity. In some specific application scenarios, the parallel layout can also realize a differentiation process through flexible scheduling, for example, a standard dispensing process is performed on some transfer seats 200, and a special dispensing or repeated curing process is performed on other transfer seats 200, so as to improve the universality and adaptability of the equipment.
The dispensing assembly 300 includes the dispensing head 320 and the sliding frame 310, and the dispensing assembly 300 is disposed in pairs and located at the other side of the door-shaped frame 110, and is used for dispensing the lens barrels 800 on the transfer bases 200 at two sides in parallel. Through the symmetrical arrangement, the dispensing action and the carrying action can be alternately performed, namely, when dispensing is completed on one side, feeding or discharging can be performed on the other side, so that the process beat is obviously optimized, the idle waiting time is reduced, and the utilization rate and the production efficiency of the equipment are further improved. Because the moving range of the dispensing head 320 and the sliding frame 310 is relatively limited, and the lens barrel 800 is positioned by moving the transfer seat 200, the system effectively reduces the high-precision long-stroke movement requirement of the sliding frame 310 while maintaining the dispensing precision, thereby simplifying the control logic and the mechanical structure and further improving the stability of the system.
Because the dispensing assembly 300 and the carrying assembly 600 are mounted on the same door frame 110 together, independent vibration and relative displacement caused by the scattered arrangement of the dispensing assembly and the carrying assembly are avoided, and thus the stability of the whole operation is remarkably improved. The door frame 110 structurally provides a unified installation reference for the dispensing assembly 300 and the handling assembly 600, so that the two can maintain stable spatial position relationship and motion trail consistency in the working process. Further, the unified reference is not only beneficial to accurate matching of the dispensing position and the carrying path, reduces deviation caused by assembly errors, but also improves the repeated positioning precision of the whole equipment and the reliability under long-term use, and ensures that high-precision correspondence of the dispensing point and the lens barrel 800 position can still be realized under high-speed continuous operation.
The UV curing assemblies 700 are arranged in pairs, each UV curing assembly 700 comprises a UV lamp and a mounting frame, the UV lamps are fixedly mounted on the mounting frame, and the mounting frame can be adjusted up and down through a Z-axis driving structure so as to adapt to the requirements of the heights of different lens barrels 800 and the curing depths of different glues. In practical applications, the UV curing assembly 700 is located on the side of the transfer holders 200 on both sides of the table 100 away from the bin 410, and this positioning arrangement can enable the lens barrel 800 to be directly transferred to the curing station after dispensing is completed, avoiding unnecessary handling paths and time loss.
In order to ensure the curing uniformity, the irradiation angle, the light intensity, the travel and the curing time of the UV curing assembly 700 are precisely regulated and controlled by a central control module, and are recorded in linkage with the data of the dispensing process, so that the traceability of the curing parameters of the glue of each product is realized. The process-level data closed-loop management not only improves the bonding strength and sealing performance, but also provides basis for subsequent quality monitoring and process optimization, thereby improving the automation degree and reliability of the whole machine.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202511320273.9A CN120984503A (en) | 2025-09-16 | 2025-09-16 | An automatic adhesive dispensing and curing machine for optical lenses |
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| CN202511320273.9A CN120984503A (en) | 2025-09-16 | 2025-09-16 | An automatic adhesive dispensing and curing machine for optical lenses |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121649092A (en) * | 2026-02-04 | 2026-03-13 | 宁波莱塔思光学科技有限公司 | Adhesive dispensing device for non-contact optical fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121649092A (en) * | 2026-02-04 | 2026-03-13 | 宁波莱塔思光学科技有限公司 | Adhesive dispensing device for non-contact optical fiber |
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