CN114602741B - Roll-to-roll COB lamp strip dispenser and method - Google Patents
Roll-to-roll COB lamp strip dispenser and method Download PDFInfo
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- CN114602741B CN114602741B CN202210334027.9A CN202210334027A CN114602741B CN 114602741 B CN114602741 B CN 114602741B CN 202210334027 A CN202210334027 A CN 202210334027A CN 114602741 B CN114602741 B CN 114602741B
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- lamp strip
- dispensing
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- roll
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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
- B05C5/0245—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 a moving work of indefinite length, e.g. to a moving web
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
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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
- 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
- B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
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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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a roll-to-roll COB lamp strip dispenser, which comprises: the device comprises a lamp belt runner, a feeding module, a dispensing head, a lifting module, a plane movement module, a CCD camera and a controller; the lamp strip runner is used for bearing a lamp strip, and the feeding module is used for driving the lamp strip to move in the lamp strip runner; the dispensing head is positioned above the lamp strip flow channel and is used for dispensing the lamp strip; the lifting module is fixedly connected with the dispensing head and used for driving the dispensing head to move up and down, and the plane movement module is fixedly connected with the lifting module and used for driving the dispensing head to move in a plane; the CCD camera is positioned above the lamp strip runner and is used for shooting a lamp strip to be glued; the controller is respectively connected with the lamp belt runner, the feeding module, the dispensing head, the lifting module, the plane movement module and the CCD camera; the controller is used for controlling the dispensing head, the lifting module and the plane movement module to perform dispensing operation according to pictures shot by the CCD camera.
Description
Technical Field
The invention relates to the technical field of COB dispensing, in particular to a roll-to-roll COB lamp strip dispensing machine and a method.
Background
The COB lamp strip is used as a novel linear illuminating lamp strip with high brightness and high display index, the appearance is exquisite, the light is soft and uniform, no light spots exist, various waterproof modes are provided, the flip-chip packaging technology is adopted, the heat dissipation performance is good, and the service life of the lamp strip is longer. The COB lamp strip is formed by packaging a chip on a soft board, and then directly dripping a layer of packaging glue mixed with fluorescent powder on the surface of the chip. The COB lamp strip meets the requirements of abundant use scenes, household illumination, outdoor illumination, urban park illumination, bridge illumination, hotel illumination and the like, and is a preferred illumination product.
The existing COB lamp strip is automatically produced in order to solve the problem of glue dispensing accuracy in the production process, and a glue pulling processing mode is often adopted, namely continuous glue dispensing is carried out on an uninterrupted soft board, but the method is not suitable for glue dispensing of a double-color-temperature lamp strip. And the luminous effect of current lamp area at production granule needs to be realized through chip mounter lamp pearl, and processing cost is higher.
In summary, designing a dispenser suitable for COB light strip production is a major challenge to be solved.
Disclosure of Invention
The invention aims to provide a roll-to-roll COB lamp strip dispensing machine and a method, visual positioning is carried out through a CCD camera, precise dispensing is carried out on chips of the COB lamp strip, and production efficiency is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a roll-to-roll COB light strip dispenser comprising: the device comprises a lamp belt runner, a feeding module, a dispensing head, a lifting module, a plane movement module, a CCD camera and a controller;
the lamp strip runner is used for bearing a lamp strip, and the feeding module is used for driving the lamp strip to move in the lamp strip runner;
the dispensing head is positioned above the lamp strip flow channel and is used for dispensing the lamp strip;
the lifting module is fixedly connected with the dispensing head and used for driving the dispensing head to move up and down, and the plane movement module is fixedly connected with the lifting module and used for driving the dispensing head to move in a plane;
the CCD camera is positioned above the lamp strip runner and is used for shooting a lamp strip to be glued;
the controller is respectively connected with the lamp belt runner, the feeding module, the dispensing head, the lifting module, the plane movement module and the CCD camera;
the controller is used for controlling the dispensing head, the lifting module and the plane movement module to perform dispensing operation according to pictures shot by the CCD camera.
Further, the lamp strip leveling device also comprises a lamp strip leveling module, wherein the lamp strip leveling module comprises a vacuum suction plate;
the vacuum suction plate is positioned below the lamp strip runner and is used for leveling the lamp strip corresponding to the position of the vacuum suction plate in the lamp strip runner.
Further, the feeding module comprises a feeding linear module and a vacuum fixing block;
the vacuum fixing blocks are positioned at two ends of the lamp strip flow channel and are driven up and down through the fixing air cylinders to fix the lamp strip in a vacuum adsorption mode;
the vacuum suction plate is fixedly connected with the electric seat of the feeding linear module through the leveling cylinder, and the feeding linear module is used for feeding through the displacement of the lamp strip driven by the vacuum plate.
Further, the dispensing head is a multi-head dispensing valve, the multi-head dispensing valve comprises a switching block arranged at the bottom of the valve body, a glue outlet block is arranged below the switching block, a glue outlet channel is arranged on the glue outlet block, and the glue outlet head is arranged at the glue outlet channel.
Further, the device also comprises a cleaning device, wherein the cleaning device comprises a glue sucking seat and a glue discharging box;
the glue sucking seat corresponds to the glue dispensing head and is used for generating negative pressure to clean the glue dispensing head;
the glue discharging box is used for collecting the waste glue discharged by the glue dispensing head.
Further, the lamp strip runner includes: the device comprises a guide bar, a supporting plate, a pressing block, a lateral positioning block and a pressing plate;
the guide strips are positioned at two sides of the lamp belt, the supporting plate and the pressing block are fixed on the guide strips, and a gap for the lamp belt to pass through is arranged between the supporting plate and the pressing block;
a positioning block used for transversely equipping the lamp strip is arranged on the side surface of the guide strip, and a guide spring used for applying pretightening force is arranged between the positioning block and the guide strip;
the clamp plate is equipped with between the gib block of both sides, the clamp plate is located the top of gib block, the lower surface of clamp plate is the cusp that corresponds with the lamp area surface for restrict the degree of freedom in lamp area.
A roll-to-roll COB lamp strip dispensing method is applied to the roll-to-roll COB lamp strip dispensing machine and comprises the following steps:
s100, flattening the lamp belt in the area through a vacuum suction plate of the flattening module;
s200, shooting a lamp belt by a CCD camera, and transmitting the picture to a controller identification chip position;
s300, the controller drives the dispensing head, the lifting module and the plane movement module to perform dispensing operation;
s400, after the dispensing operation in the area is completed, the feeding module drives the lamp belt to move along the lamp belt flow channel for feeding;
s500, repeating the step S100 after finishing feeding.
Further, the step S100 includes the following steps:
inputting the number n of glue outlets of the glue dispensing head, inputting the resolution of the CCD camera, determining the actual distance corresponding to the minimum pixel unit, and setting the glue outlet amount of each glue dispensing.
Further, step S400, after the dispensing operation in the area is completed, the feeding module drives the lamp belt to move along the lamp belt runner for feeding, and specifically includes the following steps:
s401, maintaining negative pressure suction by a vacuum suction plate to fix the lamp belt;
s402, starting a feeding linear module, and driving a lamp belt to move along a lamp belt runner through a vacuum suction plate;
s403, lifting the vacuum fixing blocks at two ends of the lamp strip flow channel under the drive of the fixing cylinder, generating negative pressure, and fixing two sides of the lamp strip in the lamp strip flow channel;
s404, recovering air pressure by a vacuum suction plate, resetting a leveling cylinder, separating the vacuum suction plate from a lamp belt, and resetting a feeding linear module;
s405, after resetting in the horizontal direction, starting a leveling cylinder, jacking up a vacuum suction plate to be in contact with the lamp belt and generating negative pressure to fix the lamp belt, and resetting a vacuum fixing block and a fixing cylinder at two ends;
s406, finishing the feeding action of the lamp strip.
Further, the step S300 of driving the dispensing head, the lifting module and the plane movement module to perform dispensing operation includes the following steps;
determining displacement distance L x n of each dispensing head according to the identified distance L between adjacent chips on the lamp strip and the number n of the dispensing heads;
and after the light bands in the area are completely dispensed, resetting the dispensing head, and executing the feeding step.
By applying the technical scheme of the invention, the visual recognition is performed through the CCD camera to improve the dispensing precision, and the COD (chemical oxygen demand) lamp strip dispensing process is that the CCD camera and the controller are used for recognizing the positions of the chips on the lamp strip, so that the chips on the lamp strip are precisely dispensed, the production of the diversified light effect of the COB lamp strip is met, and in the double-color temperature lamp strip, the color temperature difference is realized through different pairs of glue with different colors. In order to eliminate granular sensation, glue with one color temperature is firstly dispensed, then glue with the other color is dispensed through a glue dispenser to cover, the appearance is kept in a strip shape, and lamp beads with two color temperatures are realized. Automatic positioning and automatic production reduces labor cost and improves production efficiency. Compared with the patch type production, the original patch type lamp bead with the surface mount device is replaced by dispensing, so that the production efficiency is improved, and the production cost is reduced. And the mode of dispensing is carried out through interval material loading, satisfies the production mode of reel-to-reel, has reduced equipment volume, does not have the restriction to the processing length of COB lamp area.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The present invention will be described in detail below with reference to the attached drawings, so that the above advantages of the present invention will be more apparent.
FIG. 1 is a side view of a portion of the structure of a roll-to-roll COB lamp strip dispenser of the present invention;
FIG. 2 is a schematic view of a part of a roll-to-roll COB lamp strip dispenser according to the present invention;
FIG. 3 is a schematic view of a lamp strip runner of a roll-to-roll COB lamp strip dispenser of the present invention;
FIG. 4 is a schematic diagram of a roll-to-roll COB lamp strip dispenser of the present invention;
FIG. 5 is a flow chart of a roll-to-roll COB lamp strip dispensing method of the present invention;
fig. 6 is a feeding flow chart of a roll-to-roll COB lamp strip dispensing method of the invention.
Detailed Description
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be attached, detached, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1-4, a roll-to-roll COB light strip dispenser includes: the device comprises a lamp belt runner 100, a feeding module, a dispensing head 300, a lifting module, a plane movement module, a CCD camera 400 and a controller;
the lamp strip runner 100 is used for bearing a lamp strip, and the feeding module is used for driving the lamp strip to move in the lamp strip runner 100;
the dispensing head 300 is located above the lamp strip runner 100, and is used for dispensing the lamp strip;
the lifting module is fixedly connected with the dispensing head 300 and used for driving the dispensing head 300 to perform up-and-down displacement, and the plane movement module is fixedly connected with the lifting module and used for driving the dispensing head 300 to perform plane displacement;
the CCD camera 400 is located above the lamp strip runner 100 and is used for shooting a lamp strip to be glued;
the controller is respectively connected with the lamp strip runner 100, the feeding module, the dispensing head 300, the lifting module, the plane movement module and the CCD camera 400;
the controller is used for controlling the dispensing head 300, the lifting module and the plane movement module to perform dispensing operation according to the picture shot by the CCD camera 400.
One end of the light strip runner 100 is provided with a material roll for dispensing the light strip, the other end of the light strip runner 100 is provided with a material roll, the light strip is arranged in the light strip runner 100, when the dispensing head 300 is used for dispensing, the light strip is positioned in the light strip runner 100 and is relatively static, the quantity and the positions of chips on the light strip in a dispensing area are identified through the CCD camera 400 and the controller, and the dispensing head 300, the lifting module and the plane movement module are driven to perform dispensing operation. After the chips in the dispensing area are all dispensed, the feeding module drives the lamp strip to move, the lamp strip moves along the lamp strip flow channel 100, the lamp strip after dispensing is moved out of the dispensing area, the displacement distance is equal to the length of the dispensing area, and leakage points or repeated dispensing are avoided.
Compare in current machine of gluing that draws, utilize the real-time actual discernment of CCD camera 400 to carry out accurate location, through the position of chip on CCD camera and the controller discernment lamp area, carry out accurate point to the chip on the lamp area and glue, satisfy the production of the diversified light effect in COB lamp area, in double-colored temperature lamp area, through the glue of different colors to the lamp area point, realize the colour temperature difference. In order to eliminate granular sensation, glue with one color temperature is firstly dispensed, then glue with the other color is dispensed through a glue dispenser to cover, the appearance is kept in a strip shape, and lamp beads with two color temperatures are realized. Automatic positioning and automatic production reduces labor cost and improves production efficiency. Compared with the patch type production, the original patch type lamp bead with the surface mount device is replaced by dispensing, so that the production efficiency is improved, and the production cost is reduced. And the mode of dispensing is carried out through interval material loading, satisfies the production mode of reel-to-reel, has reduced equipment volume, does not have the restriction to the processing length of COB lamp area.
In this embodiment, the lamp belt leveling device further comprises a lamp belt leveling module, wherein the lamp belt leveling module comprises a vacuum suction plate 610;
the vacuum plate 610 is located below the lamp strip runner 100, and is used for leveling the lamp strip corresponding to the position of the vacuum plate 610 in the lamp strip runner 100.
Because the interval between the point gum channels of the multi-head point gum valve corresponds with the chip interval of the lamp belt, if the lamp belt is wrinkled, the distance of the point chip can be influenced, and the accuracy of point gum is influenced. And if the lamp belt is uneven, after dispensing, fluid glue can flow before solidification, and the dispensing quality is affected. I.e. to ensure accuracy of visual identification and to meet the adaptation of the multi-head dispensing valve, flatness of the lamp strip must be ensured.
Negative pressure is generated through the vacuum suction plate 610 positioned below the dispensing area, and small-aperture air holes are uniformly formed in the surface of the vacuum suction plate 610, so that the flatness of the lamp strip can be influenced by the air holes with larger apertures when the lamp strip is uniformly stressed, and the lamp strip is flattened downwards under the action of atmospheric pressure, so that the dispensing precision and efficiency are ensured.
In this embodiment, the feeding module includes a feeding linear module 210 and a vacuum fixing block 220;
the vacuum fixing blocks 220 are positioned at two ends of the lamp strip flow channel 100, and the vacuum fixing blocks 220 are driven up and down by a fixing cylinder to fix the lamp strip by vacuum adsorption;
the vacuum suction plate 610 is fixedly connected with the electric seat of the feeding linear module 210 through a leveling cylinder 620, and the feeding linear module 210 is used for feeding by driving the lamp belt to shift through the vacuum plate.
The lamp area is as a flexible work piece, and in the processing of cutting is not carried out to the reel, when driving the lamp area to carry out the material loading, need guarantee can not cause the influence to not solidifying yet, also can not influence the roughness of lamp area. In view of the fixing manner of the leveling module by the vacuum plate 610, the vacuum fixing blocks 220 for fixing the lamp strip are provided at both ends of the leveling lamp strip flow path 100.
The vacuum suction plate 610 maintains a negative pressure suction force to fix the lamp strip when dispensing the lamp strip in the dispensing area; after the dispensing operation is completed, the feeding linear module 210 is started, and the lamp strip is driven to move along the lamp strip flow channel 100 through the vacuum suction plate 610; the vacuum fixing blocks 220 at the two ends of the lamp strip runner 100 are lifted and generate negative pressure under the driving of the fixing air cylinder, and the two sides of the lamp strip in the lamp strip runner 100 are fixed, so that the leveling of the two ends of the lamp strip is maintained; the vacuum suction plate 610 recovers the air pressure and the leveling cylinder 620 is reset, the vacuum suction plate 610 is separated from the lamp strip, and the feeding linear module 210 is reset; after the horizontal direction of the feeding motor is reset, the leveling cylinder 620 is started, the vacuum suction plate 610 jacks up to be in contact with the lamp belt and generates negative pressure to fix the lamp belt, and meanwhile, the vacuum fixing blocks 220 at two ends are reset with the fixing cylinders, so that the feeding action of the lamp belt is completed.
In this embodiment, the dispensing head 300 is a multi-head dispensing valve, the multi-head dispensing valve includes a valve body bottom mounted with a transfer block, a glue outlet block is mounted below the transfer block, the glue outlet block is provided with a glue outlet channel, and the glue outlet head is mounted at the glue outlet channel.
When general lamp area is in the operation of gluing, the chip array on the lamp area distributes, in order to improve the point and glue efficiency, can adopt the point that has a plurality of play gluey passageway to glue the valve and carry out the point and glue, can very big improvement point and glue efficiency.
The single-head dispensing head 300 has the advantages of strong universality, meeting the dispensing requirements of any specification and any interval, and having the disadvantage of lower dispensing efficiency;
the multi-head dispensing valve has the advantages that the dispensing efficiency is high, a plurality of rows and a plurality of columns of dispensing channels can dispense a plurality of chips at one time, and the multi-head dispensing valve has the defect of poor universality, namely, the multi-head dispensing valve cannot be shared when facing lamp strips with different pitches.
In this embodiment, the cleaning device further comprises a cleaning device, wherein the cleaning device comprises a glue sucking seat 710 and a glue discharging box 720;
the suction base 710 corresponds to the dispensing head 300, and is used for generating negative pressure to clean the dispensing head 300;
the glue discharging box 720 is used for collecting the waste glue discharged by the glue dispensing head 300.
In order to ensure the dispensing quality during dispensing operation, particularly, a multi-head dispensing valve is used, smoothness and dispensing consistency of each dispensing channel are required to be ensured, after the downtime is long, the multi-head dispensing valve can be assisted by the suction seat 710 to remove the glue blocked in the dispensing channel, so that the dispensing consistency of each dispensing channel is ensured during dispensing, and the dispensing box 720 is used for recycling the waste glue which is removed for the first time after calibration or cleaning.
The positions and the relative coordinates of the glue sucking seat 710 and the glue discharging box 720 are fixed, and the controller controls the glue dispensing head 300, the lifting module and the plane movement module to automatically complete the above-mentioned cleaning and glue discharging actions.
In this embodiment, the lamp strip flow channel 100 includes: guide bar 110, pallet 120, press block 130, lateral positioning block 140, and press plate 150;
the guide strips 110 are positioned at two sides of the lamp strip, the supporting plate 120 and the pressing block 130 are fixed on the guide strips 110, and a gap for the lamp strip to pass through is arranged between the supporting plate 120 and the pressing block 130;
a positioning block for transversely equipotential light bands is arranged on the side surface of the guide strip 110, and a guide spring for applying pretightening force is arranged between the positioning block and the guide strip 110;
a pressing plate 150 is arranged between the guide strips 110 on two sides, the pressing plate 150 is positioned above the guide strips 110, and the lower surface of the pressing plate 150 is toothed corresponding to the surface of the lamp strip and is used for limiting the freedom degree of the lamp strip.
The lamp strip is fixed through the supporting plates 120 and the pressing blocks 130 at the two sides, and the hollow design of the lamp strip runner 100 is convenient for the installation of the leveling module; through the locating piece on the lateral wall of the guide strip 110, however, the lamp strip runner 100 is suitable for lamp strip processing with different widths, and the lamp strip can not shake in the horizontal direction in the displacement process through the pre-tightening force applied by the guide spring, so that the dispensing precision is ensured.
The toothed pressing plate 150 is located above the lamp strip, and the saw teeth apply uniform downward pressure to the lamp strip while avoiding chips on the lamp strip, so that the lamp strip is reduced or prevented from being wrinkled in the dispensing operation, and the lamp strip is flattened under the negative pressure of the vacuum suction plate 610 conveniently.
The position of the pressing plate corresponds to the positions of the vacuum suction plate and the vacuum fixing block, and deformation caused by the fact that the lamp strip is jacked up by the vacuum suction plate and the vacuum fixing block during working is prevented.
As shown in fig. 5-6, a roll-to-roll COB light strip dispensing method, which is applied to the roll-to-roll COB light strip dispenser described above, includes the following steps:
s100, flattening the lamp strips in the area through a vacuum suction plate 610 of the flattening module;
one end of the lamp strip runner 100 is provided with a material roll for dispensing the lamp strip, the other end of the lamp strip runner 100 is provided with a material roll, the lamp strip is arranged in the lamp strip runner 100, the lamp strip is relatively static in the lamp strip runner 100 when dispensing is performed by the dispensing head 300, and the lamp strip in the area is flattened through the vacuum suction plate 610, so that the dispensing precision and efficiency are ensured.
S200, the CCD camera 400 shoots a lamp strip and transmits the picture to the controller to identify the chip position;
the quantity and the positions of chips on the lamp strip in the dispensing area are identified through the CCD camera 400 and the controller, errors generated in the process of feeding the lamp strip are eliminated, and the dispensing accuracy of each time is ensured.
S300, the controller drives the dispensing head 300, the lifting module and the plane movement module to perform dispensing operation;
the quantity and the positions of chips on the lamp strip in the dispensing area are identified through the CCD camera 400 and the controller, and the advantage of real-time actual identification of the CCD camera 400 is utilized. Provides a basis for accurate dispensing and automatic production of COB lamp strips, and ensures the accuracy of dispensing. And the mode of dispensing is carried out through interval material loading, moves and static combination, has reduced equipment volume, satisfies the production mode of reel to reel, has improved production efficiency.
S400, after the dispensing operation in the area is completed, the feeding module drives the lamp belt to move along the lamp belt flow channel 100 for feeding;
the mode of dispensing is carried out through interval material loading, moves and static combination, has reduced equipment volume, satisfies the production mode of reel to reel, has improved production efficiency.
S500, repeating the step S100 after finishing feeding.
Compare in current COB lamp area's production method, utilize the real-time actual discernment's of CCD camera 400 advantage, carry out accurate location, through the position of chip on CCD camera and the controller discernment lamp area, carry out accurate point to the chip on the lamp area and glue, satisfy the production of the diversified light effect in COB lamp area, in double-colored temperature lamp area, through the glue of different colors to the lamp area point, realize the colour temperature difference. In order to eliminate granular sensation, glue with one color temperature is firstly dispensed, then glue with the other color is dispensed through a glue dispenser to cover, the appearance is kept in a strip shape, and lamp beads with two color temperatures are realized. Automatic positioning and automatic production reduces labor cost and improves production efficiency. Compared with the patch type production, the original patch type lamp bead with the surface mount device is replaced by dispensing, so that the production efficiency is improved, and the production cost is reduced. And the mode of dispensing is carried out through interval material loading, satisfies the production mode of reel-to-reel, has reduced equipment volume, does not have the restriction to the processing length of COB lamp area.
In this embodiment, the step S100 includes the following steps:
the number n of glue outlets of the glue dispensing head 300 is input, the resolution of the CCD camera 400 is input, the actual distance corresponding to the minimum pixel unit is determined, and the glue dispensing amount of each glue dispensing is set.
When the dispensing head 300 performs the dispensing operation, the planar motion module drives the dispensing head 300 in both the longitudinal direction and the transverse direction, and the longitudinal and transverse movement distance of the planar motion module is determined by two factors. Firstly, the horizontal and longitudinal distance between the chips on the lamp strip is indirectly identified visually through the CCD camera 400 and the controller, and converted through determining the corresponding actual distance of the minimum pixel unit; the other is the number n of the glue outlets of the dispensing head 300, if the dispensing head 300 is a single head, that is, the dispensing head 300 is only displaced by one horizontal or longitudinal distance at a time, and if the dispensing head 300 has a plurality of glue outlets, the planar motion module drives the dispensing head 300 to displace by a plurality of horizontal or longitudinal distances each time.
In this embodiment, after the dispensing operation in the area is completed in step S400, the feeding module drives the lamp belt to move along the lamp belt runner 100 for feeding, and specifically includes the following steps:
s401, maintaining a negative pressure suction force by a vacuum suction plate 610 to fix the lamp belt;
s402, starting the feeding linear module 210, and driving the lamp strip to move along the lamp strip flow channel 100 through the vacuum suction plate 610;
s403, lifting the vacuum fixing blocks 220 at two ends of the lamp strip flow channel 100 under the drive of the fixing cylinder to generate negative pressure, and fixing two sides of the lamp strip in the lamp strip flow channel 100;
s404, recovering air pressure by the vacuum suction plate 610 and resetting the leveling cylinder 620, separating the vacuum suction plate 610 from the lamp belt, and resetting the feeding linear module 210;
s405, after the horizontal direction is reset, the leveling cylinder 620 is started, the vacuum suction plate 610 jacks up to be in contact with the lamp belt and generates negative pressure to fix the lamp belt, and meanwhile, the vacuum fixing blocks 220 at the two ends and the fixing cylinder are reset;
s406, finishing the feeding action of the lamp strip.
The lamp area is as a flexible work piece, and in the processing of cutting is not carried out to the reel, when driving the lamp area to carry out the material loading, need guarantee can not cause the influence to not solidifying yet, also can not influence the roughness of lamp area. In view of the fixing manner of the leveling module by the vacuum plate 610, the vacuum fixing blocks 220 for fixing the lamp strip are provided at both ends of the leveling lamp strip flow path 100.
Compared with the mode of pulling and grabbing through the mechanical arm, the mode of matching the vacuum suction plate 610 and the vacuum fixing block 220 is adopted, the stress area of the lamp strip is larger and more uniform, and wrinkles can be effectively reduced or avoided, so that the dispensing quality and efficiency are guaranteed.
In this embodiment, the step S300 of driving the dispensing head 300, the lifting module and the plane movement module to perform the dispensing operation includes the following steps;
determining displacement distance L x n of each dispensing head 300 according to the identified distance L between adjacent chips on the lamp strip and the number n of the dispensing openings of the dispensing heads 300;
after the light bands in the area are completely dispensed, the dispensing head 300 is reset, and the feeding step is executed.
The single-head dispensing head 300 has the advantages of strong universality, meeting the dispensing requirements of any specification and any interval, and having the disadvantage of lower dispensing efficiency;
the multi-head dispensing valve has the advantages that the dispensing efficiency is high, a plurality of rows and a plurality of columns of dispensing channels can dispense a plurality of chips at one time, and the multi-head dispensing valve has the defect of poor universality, namely, the multi-head dispensing valve cannot be shared when facing lamp strips with different pitches. If the dispensing head 300 is a single head, that is, the dispensing head 300 is only displaced by one lateral or longitudinal distance at a time, if the dispensing head 300 has a plurality of glue outlets, the planar motion module drives the dispensing head 300 to be displaced by a plurality of lateral or longitudinal distances each time.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a roll-to-roll COB lamp area point gum machine which characterized in that includes: the device comprises a lamp strip runner (100), a feeding module, a dispensing head (300), a lifting module, a plane movement module, a CCD camera (400), a lamp strip leveling module and a controller;
the lamp strip runner (100) is used for bearing a lamp strip, and the feeding module is used for driving the lamp strip to move in the lamp strip runner (100);
the dispensing head (300) is positioned above the lamp strip runner (100) and is used for dispensing the lamp strip;
the lifting module is fixedly connected with the dispensing head (300) and used for driving the dispensing head (300) to perform up-and-down displacement, and the plane movement module is fixedly connected with the lifting module and used for driving the dispensing head (300) to perform plane displacement;
the CCD camera (400) is positioned above the lamp strip runner (100) and is used for shooting a lamp strip to be glued;
the controller is respectively connected with the lamp strip runner (100), the feeding module, the dispensing head (300), the lifting module, the plane movement module and the CCD camera (400);
the lamp strip leveling module comprises a vacuum suction plate (610), wherein the vacuum suction plate (610) is positioned below the lamp strip runner (100) and is used for leveling a lamp strip corresponding to the vacuum suction plate (610) in the lamp strip runner (100);
the controller is used for controlling the dispensing head (300), the lifting module and the plane movement module to perform dispensing operation according to pictures shot by the CCD camera (400), and the feeding module comprises a feeding linear module (210) and a vacuum fixed block (220);
the vacuum fixing blocks (220) are positioned at two ends of the lamp strip flow channel (100), and the vacuum fixing blocks (220) are driven up and down through the fixing air cylinders and are used for vacuum adsorption and fixing of the lamp strips;
the vacuum suction plate (610) is fixedly connected with the electric seat of the feeding linear module (210) through a leveling cylinder (620);
after the spot gluing operation in the area is completed, the feeding linear module (210) drives the vacuum suction plate (610) to drive the lamp strip to move along the lamp strip flow channel (100), then the vacuum fixing blocks (220) at two ends of the lamp strip flow channel (100) are lifted up and generate negative pressure to fix two sides of the lamp strip in the lamp strip flow channel (100) under the driving of the fixing air cylinder, then the vacuum suction plate (610) recovers air pressure and the leveling air cylinder (620) resets to separate the vacuum suction plate (610) from the lamp strip, then the feeding linear module (210) resets, the leveling air cylinder (620) is started, the vacuum suction plate (610) jacks up to contact with the lamp strip and generate negative pressure to fix the lamp strip, and meanwhile, the vacuum fixing blocks (220) at two ends and the fixing air cylinder reset to finish the feeding of the lamp strip.
2. The roll-to-roll COB lamp strip dispenser of claim 1 wherein the dispensing head (300) is a multi-head dispensing valve, the multi-head dispensing valve comprises a transfer block mounted at the bottom of the valve body, a glue outlet block is mounted below the transfer block, the glue outlet block is provided with a glue outlet channel, and the glue outlet head is mounted at the glue outlet channel.
3. The roll-to-roll COB lamp strip dispenser of claim 1 further comprising a cleaning device comprising a suction base (710) and a discharge cartridge (720);
the glue sucking seat (710) corresponds to the glue dispensing head (300) and is used for generating negative pressure to clean the glue dispensing head (300);
the glue discharging box (720) is used for collecting the waste glue discharged by the glue dispensing head (300).
4. The roll-to-roll COB light strip dispenser of claim 1, wherein the light strip runner (100) comprises: the guide strip (110), the supporting plate (120), the pressing block (130), the lateral positioning block (140) and the pressing plate (150);
the guide strips (110) are positioned at two sides of the lamp strip, the supporting plate (120) and the pressing block (130) are fixed on the guide strips (110), and a gap for the lamp strip to pass through is arranged between the supporting plate (120) and the pressing block (130);
a positioning block for transversely positioning the lamp strip is arranged on the side face of the guide strip (110), and a guide spring for applying pretightening force is arranged between the positioning block and the guide strip (110);
a pressing plate (150) is arranged between the guide strips (110) on two sides, the pressing plate (150) is positioned above the guide strips (110), and the lower surface of the pressing plate (150) is toothed corresponding to the surface of the lamp strip and used for limiting the freedom degree of the lamp strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210334027.9A CN114602741B (en) | 2022-03-30 | 2022-03-30 | Roll-to-roll COB lamp strip dispenser and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210334027.9A CN114602741B (en) | 2022-03-30 | 2022-03-30 | Roll-to-roll COB lamp strip dispenser and method |
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| CN114602741B true CN114602741B (en) | 2023-08-29 |
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|---|---|
| CN114602741A (en) | 2022-06-10 |
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