Fastener-free hot pressing device special for LED module

Abstract

A fastener-free hot pressing device special for an LED module comprises a rack, a driving assembly arranged on the rack, a hot pressing assembly arranged at the output end of the driving assembly and a pre-pressing assembly arranged on the hot pressing assembly. The hot pressing assembly comprises a sliding platform arranged at the output end of the driving assembly, a heating plate arranged on the sliding platform, a hot pressing plate arranged on the heating plate and a plurality of cooling air pipes arranged on the hot pressing plate at intervals. The pre-pressing assembly comprises at least four sliding rods movably arranged on the sliding platform in a penetrating mode, four springs arranged on the four sliding rods in a sleeving mode and a pre-pressing frame fixedly arranged on the sides, away from the sliding platform, of the sliding rods. According to the hot-pressing device, the hot-pressing plates can be replaced to be matched with the LED modules of different specifications to be installed and fixed, so that the function of rapidly replacing wires is achieved, and the application performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment of LED modules, in particular to a fastener-free hot pressing device special for LED modules. Background Art

[0002] LED modules are widely used products in LED products. Simply put, a circuit board with LEDs and a housing form an LED module. Among the production and processing equipment of LED modules, there are already some hot pressing devices, which have the advantages of high flatness and high precision compared with manual installation and fixation with screws. For example, Chinese Patent CN202223247232.6 discloses a hot pressing and riveting tooling and a hot pressing and riveting machine, which include a pressing block, a connecting piece and a supporting table; the pressing block is made of a heat-conducting material, and the bottom surface of the pressing block can simultaneously fit all the plastic columns on the plastic shell board, so that all the plastic columns on the plastic shell board are hot-pressed and riveted with the epoxy board; the connecting piece is made of a heat-conducting material, and the pressing block is connected to a heat source through the connecting piece; a groove is formed on the upper surface of the supporting table, and the plastic shell board is placed in the groove. This tooling can simultaneously press all the plastic columns on the plastic shell board, reduce the number of pressing blocks and reduce the pressing error. However, after the hot pressing of this tooling is completed, since the hot pressing position has not cooled down, directly discharging the material causes damage to the module, thereby reducing the product quality. And waiting for cooling on the tooling will greatly reduce the working efficiency in terms of time. Content of the Utility Model

[0003] In view of this, the utility model provides a fastener-free hot pressing device special for LED modules to solve the above problems.

[0004] A fastener-free hot pressing device special for LED modules includes a frame, a driving component arranged on the frame, a hot pressing component arranged at the output end of the driving component, and a pre-pressing component arranged on the hot pressing component. The hot pressing component includes a sliding platform arranged at the output end of the driving component, a heating plate arranged on the sliding platform, a hot pressing plate arranged on the heating plate, and a plurality of cooling air pipes arranged at intervals on the hot pressing plate. A plurality of hot pressing heads are arranged at intervals on the side of the hot pressing plate away from the heating plate, and the number of the hot pressing heads corresponds to the number of the cooling air pipes. The end surface of the end of the hot pressing head away from the hot pressing plate is in a concave arc shape, and the concave surface of the hot pressing head has cross-shaped lines. The pre-pressing component includes at least four sliding rods movably penetrating through the sliding platform, four springs respectively sleeved on the four sliding rods, and a pre-pressing frame fixedly arranged on the side of the sliding rods away from the sliding platform. One end of the spring abuts against the sliding platform, and the other end abuts against the pre-pressing frame. The pre-pressing frame is a hollow frame structure, and the hollow part corresponds to the hot pressing plate.

[0005] Further, the frame includes a support platform, at least four guide columns spaced around the periphery of the support platform, and a top plate disposed at the ends of the guide columns.

[0006] Further, the driving assembly is a servo lead screw, and its output direction faces the support platform.

[0007] Further, the sliding platform is a rectangular plate, and the four corners of the sliding platform are respectively slidably penetrated through the four guide columns, and a sliding bearing is respectively provided at the connection between the sliding platform and the four guide columns.

[0008] Further, the hot pressing plate is installed on the heating plate by screws.

[0009] Further, a circlip is respectively sleeved on one end of the four slide bars away from the pre-pressing frame.

[0010] Further, the pre-pressing frame is a hollow frame structure, and the hollow part corresponds to the hot pressing plate.

[0011] Compared with the prior art, the LED module special fastener-free hot pressing device provided by the present utility model pre-presses the module frame through the pre-pressing assembly, thereby improving the stability of subsequent hot pressing operations and the hot pressing accuracy. Then, the rivet post is hot pressed by the hot pressing head to soften it and form a cap end, thereby pressing the LED plate, so that the LED plate is fixed on the module frame. The cooling air pipe can achieve the effect of quickly cooling and solidifying the cap end, thereby improving work efficiency. The concave surface of the hot pressing head has a texture similar to the texture on the LED module, so that the cap end is formed with a texture similar to the texture on the LED module, thereby avoiding an abrupt phenomenon and improving the overall aesthetics of the module. The LED module special fastener-free hot pressing device can also match the installation and fixation of different specifications of LED modules by replacing the hot pressing plate, so as to achieve the function of quick line change and improve the applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional schematic diagram of the LED module special fastener-free hot pressing device provided by the present utility model.

[0013] Figure 2 It is a cross-sectional schematic diagram of a part of the LED module where the hot pressing operation is not completed.

[0014] Figure 3 It is a cross-sectional schematic diagram of a part of the LED module where the hot pressing operation is completed. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following further details the specific embodiments of the present utility model. It should be understood that the description of the embodiments of the present utility model herein does not limit the protection scope of the present utility model.

[0016] As Figure 1 shown, it is a cross-sectional schematic view of a hot pressing device without fasteners dedicated to an LED module provided by the present utility model. The hot pressing device without fasteners dedicated to the LED module includes a frame 10, a driving assembly 20 disposed on the frame 10, a hot pressing assembly 30 disposed at the output end of the driving assembly 20, and a pre-pressing assembly 40 disposed on the hot pressing assembly 30. It can be imagined that the hot pressing device without fasteners dedicated to the LED module further includes some other functional modules, such as a power supply module, an air pipe module, a lubrication module, etc., which are well-known technologies to those skilled in the art and will not be elaborated herein one by one.

[0017] Please refer to Figure 2 and Figure 3 together. It should be noted that the hot pressing device without fasteners dedicated to the LED module is used to hot press and fixedly connect an LED module 50. The LED module 50 includes a frame housing 51 and an LED plate 52 disposed on the frame housing 51. A plurality of rivet posts 53 made of thermoplastic material are spaced apart on the frame housing 51. The LED plate 51 passes through these rivet posts 53 and the rivet posts 53 are hot pressed by the hot pressing device without fasteners dedicated to the LED module, so that the end of the rivet post 53 is softened to form a cap end 54, thereby pressing the LED plate 51 and fixing the LED plate 51 on the frame housing 51.

[0018] The frame 10 is used to carry each component so that various fittings can be formed between them to complete the hot pressing operation on the LED module 50. The frame 10 includes a support platform 11, at least four guide posts 12 spaced apart on the periphery of the support platform 11, and a top plate 13 disposed at the end of the guide posts 12.

[0019] The support platform 11 is used to place the LED module 50. It can be imagined that a receiving chamber matching the LED module 50 is provided on the support platform 11 for positioning the LED module 50.

[0020] The length direction of the guide post 12 is perpendicular to the plane where the support platform 11 is located. The guide post 12 can cooperate with the hot pressing assembly 30 to guide the hot pressing direction of the hot pressing assembly 30, and its specific cooperation method will be described below.

[0021] A driving assembly 20 is provided on the top plate 13. The driving assembly 20 is a servo lead screw, and its output direction faces the support platform 11. Since the servo lead screw is a prior art, its working principle will not be elaborated here.

[0022] The hot pressing assembly 30 includes a sliding platform 31 disposed at the output end of the driving assembly 20, a heating plate 32 disposed on the sliding platform 31, a hot pressing plate 33 disposed on the heating plate 32, and a plurality of cooling air pipes 34 spaced apart on the hot pressing plate 33.

[0023] The sliding platform 31 is a rectangular plate, and the four corners of the sliding platform 31 are respectively slidably inserted through the four guiding columns 12. A sliding bearing 35 is respectively provided at the connection between the sliding platform 31 and the four guiding columns 12, so that the sliding platform 31 moves more smoothly on the guiding columns 12 under the drive of the driving assembly 20, thereby improving the operation accuracy and reducing the wear between the sliding platform 31 and the guiding columns 12.

[0024] The heating plate 32 is disposed on the side of the sliding platform 31 away from the driving assembly 20. The heating plate 32 can convert electrical energy into heat energy, so as to heat the hot pressing plate 33 disposed on the heating plate 32, thereby performing hot pressing operations.

[0025] A plurality of hot pressing heads 36 are spaced apart on the side of the hot pressing plate 33 away from the heating plate 32. The number of the hot pressing heads 36 corresponds to the number of the cooling air pipes 34, that is, one cooling air pipe 34 is provided on one side of each hot pressing head 36. The end face of the end of the hot pressing head 36 away from the hot pressing plate 33 is in a concave arc shape, and the diameter of the hot pressing head 36 having the concave arc-shaped end face is larger than the cross-sectional diameter of the riveting post 53. Thus, during the hot pressing operation, the concave surface of the hot pressing head 36 abuts against the end face of the riveting post 53 passing through the LED plate 51 and softens it to form a convex cap end 54. The maximum cross-sectional diameter of the cap end 54 is larger than the cross-sectional diameter of the riveting post 53, so as to press the LED plate 51.

[0026] The concave surface of the hot pressing head 36 has cross-shaped lines, and the lines are similar to the leather patterns on the LED module 50. Thus, after the hot pressing operation is completed, the cap end 54 will form lines similar to the leather patterns on the LED module 50, thereby avoiding an abrupt phenomenon and improving the overall aesthetics of the module.

[0027] The hot pressing plate 33 is installed on the heating plate 32 by screws. In this way, different specifications of the hot pressing plate 33 can be disassembled and replaced to match different specifications of the LED module 50, so as to achieve the function of rapid wire change and improve the applicability of the device.

[0028] The air outlets of several cooling air pipes 34 face the lower positions of the corresponding hot pressing heads 36 respectively. In this way, after the hot pressing operation is completed, the driving component 20 lifts the sliding platform 31 by a certain distance, so that the air outlets of the cooling air pipes 34 just align with the cap ends 54 that have completed the hot pressing operation, thereby enabling the cap ends 54 to be quickly cooled and solidified, improving work efficiency. It can be imagined that a heat insulation material is padded at the end of the cooling air pipe 34 facing the hot pressing plate 33, so as to avoid the influence of high temperature on the cooling air pipe 34 and prevent the cooling air pipe 34 from being damaged.

[0029] The pre-pressing component 40 includes at least four slide rods 41 movably penetrating through the sliding platform 31, four springs 42 respectively sleeved on the four slide rods 41, and a pre-pressing frame 43 fixedly arranged on the side of the slide rods 41 away from the sliding platform 31.

[0030] A snap spring 44 is respectively sleeved at one end of the four slide rods 41 away from the pre-pressing frame 43, and the snap spring 44 is used to prevent the slide rods 41 from falling off with the sliding platform 31 due to their own gravity. One end of the spring 42 abuts against the sliding platform 31, and the other end abuts against the pre-pressing frame 43. The pre-pressing frame 43 is a hollow frame structure, and its hollow part corresponds to the hot pressing plate 33, so as to prevent the pre-pressing frame 43 from interfering with the hot pressing operation. Before the hot pressing operation, the pre-pressing frame 43 first abuts against the frame housing 51, and the driving component 20 continues to drive the sliding platform 31 to press down. The spring 42 is compressed and stores elastic potential energy. The pre-pressing frame 42 obtains a pressure towards the frame housing 51 under the elastic potential energy of the spring 42, thereby pre-pressing the frame housing 51, improving the stability of the subsequent hot pressing operation and the hot pressing accuracy.

[0031] Compared with the prior art, the fastener-free hot pressing device for LED modules provided by the utility model pre-presses the frame housing 51 through the pre-pressing component 40, thereby improving the stability of the subsequent hot pressing operation and improving the hot pressing accuracy. Then, the hot pressing head 36 performs hot pressing operation on the rivet column 53 to soften it and form a cap end 54, thereby pressing the LED panel 51, so that the LED panel 51 is fixed on the frame housing 51. The cooling air pipe 34 can achieve the effect of quickly cooling and solidifying the cap end 54, thereby improving work efficiency. The concave surface of the hot pressing head has a texture similar to the leather grain on the LED module 50, so that the cap end 54 forms a texture similar to the leather grain on the LED module 50, thereby avoiding the phenomenon of causing abruptness to people and improving the overall aesthetics of the module. The fastener-free hot pressing device for LED modules can also match the installation and fixation of LED modules 50 of different specifications by replacing the hot pressing plate 52, so as to achieve the function of fast line change and improve the applicability.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A thermal pressing device without fasteners for LED modules, characterized in that: The heat pressing device without fasteners for the dedicated LED module includes a frame, a driving component arranged on the frame, a heat pressing component arranged at the output end of the driving component, and a pre-pressing component arranged on the heat pressing component. The heat pressing component includes a sliding platform arranged at the output end of the driving component, a heating plate arranged on the sliding platform, a hot pressing plate arranged on the heating plate, and a plurality of cooling air pipes arranged at intervals on the hot pressing plate. A plurality of hot pressing heads are arranged at intervals on the side of the hot pressing plate away from the heating plate. The number of the hot pressing heads corresponds to the number of the cooling air pipes. The end face of the end of the hot pressing head away from the hot pressing plate is in a concave arc shape, and the concave surface of the hot pressing head has cross-shaped patterns. The pre-pressing component includes at least four sliding rods movably penetrating through the sliding platform, four springs respectively sleeved on the four sliding rods, and a pre-pressing frame fixedly arranged on the side of the sliding rod away from the sliding platform. One end of the spring abuts against the sliding platform, and the other end abuts against the pre-pressing frame. The pre-pressing frame is a hollow frame structure, and the hollow part corresponds to the hot pressing plate.

2. The heat pressing device without fasteners for LED modules according to claim 1, characterized in that: The frame includes a support platform, at least four guiding columns arranged at intervals on the periphery of the support platform, and a top plate arranged at the end of the guiding column.

3. The hot pressing device without fasteners for LED modules according to claim 2, characterized in that: The driving component is a servo lead screw, and its output direction faces the support platform.

4. The heat pressing device without fasteners for LED modules according to claim 2, characterized in that: The sliding platform is a rectangular plate, and the four corners of the sliding platform respectively slide through the four guiding columns, and sliding bearings are respectively arranged at the joints between the sliding platform and the four guiding columns.

5. The heat pressing device without fasteners for LED modules according to claim 1, characterized in that: The hot pressing plate is installed on the heating plate by screws.

6. The hot pressing device without fasteners for LED modules according to claim 1, characterized in that: A retaining ring is respectively sleeved on one end of the four sliding rods away from the pre-pressing frame.

7. The heat pressing device without fasteners for LED modules according to claim 1, characterized in that: The pre-pressing frame is a hollow frame structure, and the hollow part corresponds to the hot pressing plate.

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