Visual curing following printing system

Abstract

The utility model provides a visual curing following printing system, which comprises a printing mechanism, a following curing device and a driving mechanism, and is characterized in that the printing mechanism is used for printing light curing glue on the surface of a substrate; the follow-up curing device comprises a light generator, and the light generator is used for emitting curing light to cure the light curing glue liquid flowing out of the printing mechanism to the surface of the substrate; the printing mechanism comprises a printing needle head, the printing needle head is sleeved with the light generator, the light generator forms a light coverage area and a light shielding area relative to the substrate, and a plurality of observation windows are arranged in the light shielding area; the driving mechanism is used for driving the light generator to move relative to the printing needle. The printing state of the printing needle head can be observed in real time through the observation window; and when the printing needle head is blocked or hangs materials, printing is stopped, the driving mechanism is adopted to drive the light generator to move relative to the printing needle head, and the printing needle head is overhauled or cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field especially, and it is a kind of visual solidification following printing system. BACKGROUND

[0002] With the continuous development of semiconductor chip industry, the related industry and equipment of mobile phone frame are also constantly updated and upgraded. Among them, mobile phone frame dispensing is an important link in the process of manufacturing mobile phones, and mobile phone frame dispensing adopts dispensing equipment to apply glue on the frame to realize the bonding and sealing of the mobile phone frame. In the dispensing process, the width and thickness of the dispensing need very high precision, in addition, glue breakage, glue overflow and glue collapse cannot occur in the dispensing process to ensure the close fit between the mobile phone frame and the screen module.

[0003] The existing mobile phone frame dispensing equipment includes a printing mechanism and a following solidification device, which uses the following solidification device to solidify the glue liquid on the surface of the mobile phone frame in time while printing to prevent glue collapse. Among them, the following solidification device mostly adopts a cladding type annular UV lamp, that is, the annular UV lamp covers the entire printing needle, so that the printing needle cannot be observed in real time during the working process to obtain the needle condition and glue type data, and when glue leakage or clogging of the needle occurs, the maintenance cannot be stopped in time.

[0004] A "following type light curing printing device" is disclosed in Chinese patent documents, with the authorization announcement number CN217395696U. The printing device includes a solidification module and a light module; the solidification module includes a bracket, an extrusion piece, a light generator and a light spot adjusting piece; the light module includes a control box and a fixing frame; one side surface of the fixing frame is fixedly connected with one side surface of the bracket; a through hole is formed in the fixing frame, and the light generator is installed in the through hole; the light spot adjusting piece is installed on the fixing frame; the upper end of the extrusion piece is fixed on the bracket, and the lower end is inserted into the fixing frame. However, the light generator of this patent cannot irradiate the glue liquid on the surface of the mobile phone frame in all directions, and cannot achieve uniform solidification. At the same time, the light generator of this printing device still adopts a cladding type structure, and cannot observe the needle condition in real time during the working process. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a visual solidification following printing system to solve the problem that in the existing mobile phone frame dispensing equipment, the following solidification device mostly adopts a cladding type annular UV lamp to cover the entire printing needle, so that the printing needle cannot be observed in real time during the working process to obtain the needle condition and glue type data, and when glue leakage or clogging of the needle occurs, the maintenance cannot be stopped in time.

[0006] To achieve the above object and other related objects, the utility model provides a visual solidification follow -up printing system, including printing mechanism, follow -up solidification device and drive mechanism, the printing mechanism is used for printing photocuring glue liquid on the substrate surface, the follow -up solidification device includes light generator, the light generator is used for emitting solidification light to solidify the photocuring glue liquid that flows from the printing mechanism to the substrate surface, the printing mechanism includes printing needle head, the light generator is sleeved in the printing needle head outside, the light generator is formed with light coverage area and light shield area relative to the substrate, a plurality of observation windows are equipped in the light shield area, the drive mechanism is used for driving the light generator movement relative to the printing needle head.

[0007] The visual solidification follow -up printing system of the application is applied to the cell -phone middle frame dispensing process, adopts the printing mechanism to print photocuring glue liquid on the substrate surface, and adopts the light generator to emit solidification light to solidify the photocuring glue liquid that flows from the printing mechanism to the substrate surface, the printing state of the printing needle head is observed in real time through the observation window, when the printing needle head is blocked or hangs material, stops printing, and drives the light generator movement relative to the printing needle head by the drive mechanism, and the printing needle head is overhauled or cleaned by the glue cleaning mechanism. The observation window must be arranged in the light shield area of the light generator, otherwise the photocuring glue liquid to be solidified on the surface of the cell -phone middle frame cannot be fully irradiated by the solidification light, and uneven solidification is caused. The light shield area refers to the area that the light generator cannot irradiate to the substrate.

[0008] Preferably, the follow -up solidification device further comprises an observation camera, which is used to monitor the printing state of the printing needle head in real time through the observation window and obtain glue type data.

[0009] Preferably, the printing mechanism further comprises a mounting plate and a supply barrel arranged on the mounting plate, the supply barrel is used to contain photocuring glue liquid, and the printing needle head is arranged at the bottom of the supply barrel.

[0010] Preferably, an open fixing frame is further arranged on the mounting plate, the barrel body of the supply barrel is located in the open fixing frame, the observation camera is fixed on the open fixing frame, and the open fixing frame has an open state and a closed state. When printing normally, the open fixing frame is in the closed state; when the supply barrel needs to be refilled, the open fixing frame is in the open state, which is convenient for manual opening and timely taking out the supply barrel for refilling.

[0011] Preferably, a barrel mounting seat is further arranged below the open fixing frame on the mounting plate, the supply barrel is arranged on the barrel mounting seat, and the barrel mounting seat is provided with a liquid level sensor, which is used to detect the liquid level of the photocuring glue liquid in the supply barrel in real time.

[0012] Preferably, the driving mechanism comprises a linear guide rail arranged on the mounting plate, a sliding block in sliding connection with the linear guide rail, and a driving member for driving the sliding block to move along the linear guide rail relative to the printing needle, and the light generator is fixedly connected with the sliding block.

[0013] Preferably, a limiting member is arranged on the linear guide rail, and the limiting member is used for limiting the movement stroke of the sliding block along the linear guide rail.

[0014] Preferably, the light generator is provided with a needle light shielding plate, and a needle accommodating hole for accommodating the printing needle is arranged at the center of the needle light shielding plate. By arranging the needle light shielding plate in the light generator, the UV light scattered by the UV lamp is absorbed, and the light-cured glue liquid in the needle is prevented from being cured to cause needle blockage.

[0015] Preferably, the needle light shielding plate is arranged in the light coverage area of the light generator. The curing light emitted by the light shielding area itself is not irradiated onto the substrate, and an observation window is arranged. By arranging the needle light shielding plate in the light coverage area of the light generator, the observation line of the observation window is avoided.

[0016] Preferably, a light absorption groove is arranged on the bottom surface of the needle light shielding plate, and the light absorption groove is used for absorbing the curing light scattered by the light generator towards the printing needle, so as to avoid the curing of the light-cured glue liquid in the printing needle to cause needle blockage.

[0017] More preferably, the light absorption groove is a multi-stage stepped groove, which can form multi-stage reflection of the scattered curing light, further improve the light absorption effect, and avoid the curing of the light-cured glue liquid in the printing needle to cause needle blockage.

[0018] Preferably, the light generator is further provided with an air flow heat dissipation structure, and the air flow heat dissipation structure is used for cooling the light generator by air flow. The UV curing lamp generates a large amount of heat during work. In the prior art, a large volume of heat dissipation fan is used outside the UV curing lamp to achieve the effect of heat dissipation. The air flow heat dissipation structure is creatively adopted to replace the traditional fan heat dissipation, which reduces the volume of the curing device, makes the structure of the printing system more compact, and has wider application.

[0019] Preferably, the air flow heat dissipation structure comprises a plurality of air flow channels arranged in the circumferential direction of the light generator, and the air flow channels are provided with air path interfaces for external connection of a gas supply device.

[0020] Preferably, the light generator is in a ring structure, the substrate is a mobile phone middle frame, the cross section of the observation window is rectangular, and two diagonal lines of the observation window are parallel to the long side and the short side of the mobile phone middle frame, respectively. When the position of the observation window is set according to the above structure, the observation window is just located in the light shielding area, effectively solving the technical problem that the to-be-cured photocuring glue liquid on the surface of the mobile phone middle frame cannot be fully irradiated by the curing light, thereby realizing the technical effects of giving consideration to sufficient curing and real-time observation of the printing needle head condition and acquisition of the glue type data.

[0021] As described above, the visual curing follow-up printing system has the following beneficial effects:

[0022] (1) The visual curing follow-up printing system of the application, when applied to the dispensing process of the mobile phone middle frame, uses a printing mechanism to print photocuring glue liquid on the surface of the substrate, and uses a light generator to emit curing light to cure the photocuring glue liquid flowing out from the printing mechanism to the surface of the substrate; the printing state of the printing needle head is observed in real time through the observation window; when the printing needle head is blocked or has material hanging, the printing is stopped, and a driving mechanism is used to drive the light generator to move relative to the printing needle head to repair the printing needle head or a glue wiping mechanism is used to clean the printing needle head;

[0023] (2) The observation window is set in the light shielding area of the light generator, that is, the area of the light generator that cannot irradiate the substrate, which can avoid the phenomenon that the to-be-cured photocuring glue liquid on the surface of the mobile phone middle frame cannot be fully irradiated by the curing light, causing uneven curing;

[0024] (3) By setting a needle light shielding plate between the printing needle head and the light generator, the needle light shielding plate is used to absorb the UV light scattered by the UV lamp to prevent the photocuring glue liquid in the needle from being cured and causing the needle to be blocked; the airflow heat dissipation structure is used instead of the traditional fan heat dissipation, which reduces the volume of the follow-up curing device, makes the structure of the visual curing follow-up printing system more compact, and has wider application;

[0025] (4) An open fixing frame having an open state and a closed state is used, the open fixing frame is in the closed state during normal printing, and the open fixing frame is in the open state when the feeding barrel needs to be refilled, which is convenient for manual opening and timely removal of the feeding barrel for refilling. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The figure shows a structural schematic diagram of the visual curing follow-up printing system.

[0027] Figure 2 The figure shows Figure 1 The figure shows a structural schematic diagram of the visual curing follow-up printing system.

[0028] Figure 3 The figure shows an assembly structure schematic diagram of the light generator and the light shielding plate.

[0029] Figure 4 is shown as Figure 3 Another perspective view of the structure.

[0030] Figure 5 is shown as a structure diagram of a light generator.

[0031] Figure 6 is shown as a three-dimensional structure diagram of a light shield.

[0032] Figure 7 is shown as a structure diagram of an open fixing frame in an open state.

[0033] Figure 8 is shown as an application scenario diagram of following a curing device and a middle frame of a mobile phone.

[0034] Brief description of the drawings: light generator 1, needle accommodating hole 11, observation window 12, needle light shield 13, light absorption groove 131, air path interface 14, printing needle 2, base plate 3, observation camera 4, mounting plate 5, supply cartridge 51, open fixing frame 52, first support plate 521, second support plate 522, hinge 523, camera mounting plate 524, positioning bead 525, index pin 526, cartridge mounting seat 53, liquid level sensor 531, linear guide rail 6, sliding block 61, driving piece 62, limiting piece 63. DETAILED DESCRIPTION

[0035] In order to make the purpose, characteristics and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the following described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0036] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0037] Unless otherwise clearly indicated, the terms "connect," "connect with," "fixed," "fixed with," and "provide" should be construed broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections, direct connections, or indirect connections through an intermediate medium; they can be internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0038] As shown in Figure 1 and Figure 2 The embodiment of the present application provides a visual curing follow-up printing system, which comprises a printing mechanism, a follow-up curing device and a driving mechanism. The printing mechanism is used for printing light-curing glue liquid on the surface of a substrate 3. The follow-up curing device comprises a light generator 1 and an observation camera 4. The light generator is used for emitting curing light to cure the light-curing glue liquid flowing out from the printing mechanism to the surface of the substrate. The printing mechanism comprises a printing needle 2, a mounting plate 5, a supply cartridge 51, an open fixing frame 52 and a cartridge mounting seat 53. The barrel of the supply cartridge is located in the open fixing frame, and the observation camera is fixed on the open fixing frame. The open fixing frame has an open state and a closed state. The supply cartridge is arranged on the cartridge mounting seat, and the cartridge mounting seat is provided with a liquid level sensor 531. The liquid level sensor is used for detecting the liquid level of the light-curing glue liquid in the supply cartridge in real time. The light generator is sleeved outside the printing needle. The light generator forms a light coverage area and a light shielding area relative to the substrate. The light shielding area refers to an area where the light generator fails to irradiate the substrate. A plurality of observation windows 12 are arranged in the light shielding area. The observation camera is used for monitoring the printing state of the printing needle in real time through the observation windows and acquiring glue type data. The driving mechanism is used for driving the light generator to move relative to the printing needle. The driving mechanism comprises a linear guide rail 6 arranged on the mounting plate, a sliding block 61 in sliding connection with the linear guide rail and a driving member 62 for driving the sliding block to move along the linear guide rail relative to the printing needle. The light generator is fixedly connected with the sliding block. The linear guide rail is provided with a limiting member 63. The limiting member is used for limiting the movement stroke of the sliding block along the linear guide rail. The driving member can adopt a telescopic air cylinder.

[0039] As shown in Figure 3 and Figure 4 The light generator is provided with a needle light shield plate 13. A needle accommodating hole 11 for accommodating the printing needle is arranged at the center of the needle light shield plate. The needle light shield plate 13 is arranged in the light coverage area of the light generator. Figure 6As shown, the bottom surface of the needle light shield is provided with a light absorption groove 131, which is used to absorb the curing light scattered by the light generator towards the printing needle, so as to avoid the curing of the photocuring glue liquid in the printing needle to cause the needle to be blocked. The light absorption groove is a multi-stage stepped groove, which can form multi-stage reflection of the scattered curing light, further improve the light absorption effect, and avoid the curing of the photocuring glue liquid in the printing needle to cause the needle to be blocked.

[0040] As shown in Figure 7 As shown, the open fixing frame 52 includes a first support plate 521 and a first support plate 522 arranged opposite to each other and a camera mounting plate 524. The mounting plate 5, the first support plate 521, the first support plate 522 and the camera mounting plate 524 form a supply cartridge accommodating space, so that the barrel of the supply cartridge is located in the supply cartridge accommodating space of the open fixing frame, and the observation camera is fixed on the camera mounting plate. The first support plate 522 and the camera mounting plate 524 are hinged through a hinge 523, and the open fixing frame 52 realizes two states of opening and closing through the cooperation of the positioning beads 525 and the index pins 526.

[0041] The light generator is also provided with an airflow cooling structure for cooling the light generator through airflow. The airflow cooling structure includes a plurality of airflow channels arranged in the circumferential direction of the light generator, and the airflow channels are provided with air path interfaces 14 as shown. Figure 3 The air path interfaces are used to connect external air supply devices.

[0042] As shown in Figure 8 The light generator is of a ring structure, the light generator is a ring-shaped UV curing lamp, the curing light is UV light, and the photocuring glue liquid is UV glue. In combination with Figure 5 , the substrate is a mobile phone middle frame, the cross section of the observation window is rectangular, and the two diagonal lines of the observation window are parallel to the long side and the short side of the mobile phone middle frame, respectively.

[0043] The working principle of the visual curing and following printing system in the embodiment of the application is as follows:

[0044] The printing mechanism is used to print the photocuring glue liquid on the surface of the substrate, and the light generator is used to emit curing light to cure the photocuring glue liquid flowing out from the printing mechanism to the surface of the substrate;

[0045] The liquid level sensor is used to detect the liquid level of the photocuring glue liquid in the supply cartridge in real time. When the photocuring glue liquid needs to be supplemented, the positioning beads 525 and the index pins 526 are separated, the open fixing frame is opened, and the supply cartridge is taken out for feeding;

[0046] During the printing process, the printing state of the printing needle is observed in real time through the observation window by using an observation camera, and the printing state of the printing needle is observed in real time through the observation window by using an observation camera to obtain the mold data.

[0047] When the printing needle is blocked or has material hanging, the printing is stopped, the driving member 62 is used to drive the light generator 1 to drive the sliding block 61 to move along the linear guide rail 6 relative to the printing needle 2, at this time, the printing needle is separated from the light generator 1, and the printing needle can be repaired or cleaned by using the glue wiping mechanism.

[0048] In summary, when the visual curing and following printing system is applied to the dispensing process of the mobile phone middle frame, the printing mechanism is used to print the light curing glue on the surface of the substrate, the light generator is used to emit curing light to cure the light curing glue flowing out from the printing mechanism to the surface of the substrate; the printing state of the printing needle is observed in real time through the observation window; when the printing needle is blocked or has material hanging, the printing is stopped, and the driving mechanism is used to drive the light generator to move relative to the printing needle, and the printing needle is repaired or cleaned by using the glue wiping mechanism. Therefore, the utility model effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0049] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A visualizing solidification follow-on printing system characterized by, The printing mechanism is used for printing light-curing glue liquid on the surface of the substrate (3); the following curing device includes a light generator (1) for emitting curing light to cure the light-curing glue liquid flowing out from the printing mechanism to the surface of the substrate; the printing mechanism includes a printing needle (2), the light generator is sleeved outside the printing needle, the light generator forms a light coverage area and a light shielding area relative to the substrate, a plurality of observation windows (12) are arranged in the light shielding area; the driving mechanism is used for driving the light generator to move relative to the printing needle.

2. The visualized cure-following printing system of claim 1, wherein: The following curing device also includes an observation camera (4) for monitoring the printing state of the printing needle in real time through the observation window and obtaining glue type data.

3. The visualized cure-following printing system of claim 2, wherein: The printing mechanism also includes a mounting plate (5) and a supply barrel (51) arranged on the mounting plate, the supply barrel is used for containing light-curing glue liquid, and the printing needle is arranged at the bottom of the supply barrel.

4. The visualized cure-following printing system of claim 3, wherein: The mounting plate is also provided with an open fixing frame (52), the barrel body of the supply barrel is located in the open fixing frame, the observation camera is fixed on the open fixing frame, and the open fixing frame has an open state and a closed state.

5. The visualized cure-in-place-piping system of claim 4, wherein: The mounting plate is also provided with a barrel mounting seat (53) located below the open fixing frame, the supply barrel is arranged on the barrel mounting seat, and the barrel mounting seat is provided with a liquid level sensor (531) for detecting the liquid level of the light-curing glue liquid in the supply barrel in real time.

6. The visualized cure-in-place-piping system of claim 3, wherein: The driving mechanism includes a linear guide rail (6) arranged on the mounting plate, a sliding block (61) in sliding connection with the linear guide rail, and a driving member (62) for driving the sliding block to move along the linear guide rail relative to the printing needle, and the light generator is fixedly connected with the sliding block.

7. The visualized cure-in-place-piping system of claim 6, wherein: The linear guide rail is provided with a limiting piece (63) for limiting the movement stroke of the sliding block along the linear guide rail.

8. The visualized cure-in-place-piping system of claim 1, wherein: The light generator is provided with a needle light shield plate (13), and the center of the needle light shield plate is provided with a needle accommodating hole (11) for accommodating the printing needle.

9. The visualized cure-in-place-piping system of claim 8, wherein: The needle light shield plate (13) is arranged in the light coverage area of the light generator.

10. The visualized cure-following printing system of claim 8, wherein: The bottom surface of the needle light shield plate is provided with a light absorption groove (131) for absorbing the curing light scattered by the light generator towards the printing needle, so as to avoid the curing of the light-curing glue liquid in the printing needle.

11. The visualized cure-in-place-piping system of claim 1, wherein: The light generator is also provided with an air flow heat dissipation structure for cooling the light generator by air flow.

12. The visualized cure-in-place-piping system of claim 11, wherein: The air flow heat dissipation structure includes a plurality of air flow channels arranged in the circumferential direction of the light generator, and the air flow channels are provided with air path interfaces (14) for connecting external air supply devices.

13. The visualized cure-in-place-piping system of claim 1, wherein: The light generator is of a ring structure, the substrate is a mobile phone middle frame, the cross section of the observation window is rectangular, and two diagonal lines of the observation window are parallel to the long side and the short side of the mobile phone middle frame, respectively.

Images