Energy-saving temperature control structure for mobile phone back cover OMR vacuum lamination
Patent Information
- Application Number
- CN202522128671.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-09
AI Technical Summary
The temperature control structure of existing OMR vacuum bonding equipment has poor energy-saving effect, mainly due to the large heat loss caused by the use of whole-area heating.
It employs a targeted heating component and an automatic loading and unloading component, using a central heating element and edge heating elements for zoned heating. Combined with a temperature control module, the heating range is precisely controlled, and an automatic loading and unloading system is provided to achieve precise heating of mobile phone back covers of different sizes.
It achieves energy-saving effects, avoids heat loss under the whole-area heating method, and improves bonding efficiency and accuracy.
Smart Images
Figure CN224928520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum bonding technology, specifically an energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers. Background Technology
[0002] Differential pressure laminating machines are specialized equipment for composite material molding. Their core principle is to utilize air pressure difference to tightly adhere a flexible laminating film to the mold surface, thereby achieving uniform compaction and molding of the composite material blank. Currently, mainstream differential pressure laminating machines mainly employ vacuum negative pressure or positive pressure methods. Pressure changes within a sealed chamber drive the laminating film deformation, ensuring that prepreg or dry fiber blanks are fully expelled and compacted before curing, thus improving the mechanical properties and surface quality of the finished product. In smartphone assembly, OMR vacuum lamination of the back cover and mid-frame is a critical process, requiring sufficient curing and tight bonding of the optical adhesive at specific temperatures to avoid defects such as bubbles and warping. Existing OMR vacuum lamination equipment has the following drawbacks in its temperature control structure: traditional equipment uses a full-area heating method, such as heating the entire lamination chamber, covering non-lamination areas like the chamber sidewalls and bottom, resulting in significant heat loss. Furthermore, the lack of temperature control functionality leads to poor energy efficiency. Utility Model Content
[0003] The purpose of this invention is to provide an energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers, including a mounting bracket, a targeted heating component, and an automatic loading and unloading component; Wherein: the top of the mounting bracket is provided with an upper vacuum cover, and the bottom of the mounting bracket is provided with a lower vacuum cover corresponding to the lower part of the upper vacuum cover; The targeted heating assembly includes a heating element installed inside the upper vacuum shroud. The lower surface of the heating element has a central heating plate, and the lower surface of the heating element has two edge heating plates located around the outer ring of the central heating plate. The surfaces of the central heating plate and the edge heating plates are connected to wires, one end of which extends to one side of the upper vacuum shroud and is equipped with a temperature control module. The automatic loading and unloading assembly includes a mounting frame set inside a mounting bracket. A lead screw is rotatably mounted inside the mounting frame. A servo motor is fixedly mounted at one end of the mounting frame. The output end of the servo motor is fixedly connected to one end of the lead screw. A moving block is threadedly connected to the surface of the lead screw. A mounting plate is mounted on the top of the moving block. The lower vacuum cover is mounted on the surface of the mounting plate. The mounting plate drives the lower vacuum cover to slide along the lead screw to below the upper vacuum cover.
[0005] As a preferred embodiment of this utility model: slide rails are fixedly installed on the top two sides of the mounting frame, and sliders are installed on the bottom two sides of the mounting plate, with the sliders slidably mounted on the surface of the slide rails.
[0006] As a preferred embodiment of this utility model: a cylinder is fixedly installed at the top of the mounting bracket, a lifting plate is fixedly installed at the telescopic end of the cylinder, and the upper vacuum cover is fixedly installed at the bottom of the lifting plate.
[0007] As a preferred embodiment of this utility model: a limiting rod is fixedly installed around the surface of the lifting plate, a limiting sleeve is installed on the surface of the mounting bracket, and the limiting rod slides through the limiting sleeve.
[0008] As a preferred embodiment of this utility model, a limiting block is installed on the top of the limiting rod.
[0009] As a preferred embodiment of this utility model, both the central heating element and the edge heating element are made of bimetallic heating wire.
[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) A heating element is provided inside the upper vacuum cover. A central heating plate is provided on the lower surface of the heating element. Two edge heating plates are provided on the lower surface of the heating element outside the central heating plate. The central heating plate and the edge heating plates are connected to a temperature control module through wires. The heating element can be divided into multiple independent heating areas through the central heating plate and the two edge heating plates. The temperature control module can accurately control the heating range according to different sizes of mobile phone back covers, avoid heat loss caused by the use of full-area heating, and achieve energy saving effect. (2) An installation frame is installed inside the mounting bracket. A lead screw is rotatably installed inside the installation frame. When the servo motor rotates, it drives the lead screw to rotate. The rotation of the lead screw drives the sliding block connected to the surface thread to slide. An installation plate is installed on the top of the sliding block. The installation plate drives the lower vacuum cover to slide and adjust on the surface of the lead screw, thereby completing the automatic feeding and unloading. It is convenient to automatically send the back cover of the mobile phone into the bonding station before bonding. After bonding, it moves outward to facilitate material removal and unloading. Slide rails are fixedly installed on the top two sides of the installation frame. Slider blocks are installed on the bottom two sides of the installation plate. The installation plate slides stably along the slide rail through the bottom slider to ensure the stable sliding of the lower vacuum cover. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the automatic loading and unloading assembly of this utility model; Figure 3 This is a schematic diagram of the targeted heating component structure of this utility model; Figure 4This is a schematic diagram of the installation structure of the lifting plate of this utility model.
[0012] In the diagram: 1. Mounting bracket; 2. Upper vacuum chamber; 3. Lower vacuum chamber; 4. Targeted heating assembly; 41. Heating element; 42. Central heating element; 43. Edge heating element; 44. Wire; 45. Temperature control module; 5. Automatic loading and unloading assembly; 51. Mounting frame; 52. Lead screw; 53. Servo motor; 54. Moving block; 55. Mounting plate; 6. Slide rail; 7. Slider; 8. Cylinder; 9. Lifting plate; 10. Limiting rod; 11. Limiting sleeve; 12. Limiting block. Detailed Implementation
[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0014] Please see Figure 1 , Figure 4 An energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers includes: a mounting bracket 1, a targeted heating component 4, and an automatic loading and unloading component 5; the top of the mounting bracket 1 is provided with an upper vacuum cover 2, and the bottom of the mounting bracket 1 is provided with a lower vacuum cover 3 corresponding to the lower part of the upper vacuum cover 2. Please see Figure 1 , Figure 3 The targeted heating assembly 4 includes a heating element 41 installed inside the upper vacuum shroud 2. A central heating element 42 is provided on the lower surface of the heating element 41. Two edge heating elements 43 are provided on the lower surface of the heating element 41 around the outer ring of the central heating element 42. Wires 44 are connected to the surfaces of the central heating element 42 and the edge heating elements 43. One end of the wires 44 extends to one side of the upper vacuum shroud 2 and is equipped with a temperature control module 45.
[0015] In practical use: A heating element 41 is provided inside the upper vacuum cover 2. A central heating element 42 is provided on the lower surface of the heating element 41. Two edge heating elements 43 are provided on the lower surface of the heating element 41 around the central heating element 42. The central heating element 42 and the edge heating elements 43 are connected to a temperature control module 45 through wires 44. The heating element 41 can be divided into multiple independent heating areas by the central heating element 42 and the two edge heating elements 43. This allows the temperature control module 45 to accurately control the heating range according to different sizes of mobile phone back covers, avoiding heat loss caused by using a full-area heating method and achieving energy saving effect.
[0016] Please see Figure 1 , Figure 2 The automatic loading and unloading assembly 5 includes a mounting frame 51 set inside the mounting bracket 1. A lead screw 52 is rotatably mounted inside the mounting frame 51. A servo motor 53 is fixedly mounted at one end of the mounting frame 51. The output end of the servo motor 53 is fixedly connected to one end of the lead screw 52. A moving block 54 is threadedly connected to the surface of the lead screw 52. A mounting plate 55 is mounted on the top of the moving block 54. A lower vacuum cover 3 is mounted on the surface of the mounting plate 55. The mounting plate 55 drives the lower vacuum cover 3 to slide along the lead screw 52 to below the upper vacuum cover 2. Slide rails 6 are fixedly mounted on both sides of the top of the mounting frame 51. Slider 7 is mounted on both sides of the bottom of the mounting plate 55. The slider 7 is slidably mounted on the surface of the slide rails 6.
[0017] In practical use: The mounting bracket 1 has a mounting frame 51 installed inside, and a lead screw 52 is rotatably installed inside the mounting frame 51. When the servo motor 53 rotates, it drives the lead screw 52 to rotate. The rotation of the lead screw 52 drives the sliding block 54 connected by the surface thread to slide. The top of the sliding block 54 is equipped with a mounting plate 55. The mounting plate 55 drives the lower vacuum cover 3 to slide and adjust on the surface of the lead screw 52, thereby completing the automatic feeding and unloading. It is convenient to automatically send the back cover of the mobile phone into the bonding station before bonding. After bonding, it moves outward for easy material removal and unloading. The top two sides of the mounting frame 51 are fixedly installed with slide rails 6, and the bottom two sides of the mounting plate 55 are installed with sliders 7. The mounting plate 55 slides stably along the slide rails 6 through the bottom sliders 7, ensuring the stable sliding of the lower vacuum cover 3.
[0018] Please see Figure 4 A cylinder 8 is fixedly installed at the top of the mounting bracket 1, and a lifting plate 9 is fixedly installed at the telescopic end of the cylinder 8. The upper vacuum cover 2 is fixedly installed at the bottom of the lifting plate 9. Limiting rods 10 are fixedly installed around the surface of the lifting plate 9. A limiting sleeve 11 is installed on the surface of the mounting bracket 1, and the limiting rods 10 slide inside the limiting sleeve 11.
[0019] In practical use: A cylinder 8 is fixedly installed at the top of the mounting bracket 1, and a lifting plate 9 is installed at the telescopic end of the cylinder 8. After the cylinder 8 works, it drives the upper vacuum cover 2 at the bottom of the lifting plate 9 to rise and fall so that it fits with the lower vacuum cover 3. When the lifting plate 9 rises and falls, the limiting rods 10 around the surface slide inside the limiting sleeves 11 on the surface of the mounting bracket 1, so as to ensure that the lifting plate 9 drives the upper vacuum cover 2 to rise and fall stably.
[0020] Please see Figure 4 A limit block 12 is installed on the top of the limit rod 10.
[0021] In practical use: a limit block 12 is installed on the top of the limit rod 10 to prevent it from detaching.
[0022] Please see Figure 3 Both the central heating element 42 and the edge heating element 43 use bimetallic heating wires.
[0023] In practical use: the central heating element 42 and the edge heating element 43 adopt bimetallic heating wires to achieve precise control of resistance value and rapid heating after power-on, which facilitates improved bonding efficiency.
[0024] A heating element 41 is provided inside the upper vacuum cover 2. A central heating element 42 is provided on the lower surface of the heating element 41. Two edge heating elements 43 are provided on the lower surface of the heating element 41 around the central heating element 42. The central heating element 42 and the edge heating elements 43 are connected to a temperature control module 45 through wires 44. The heating element 41 can be divided into multiple independent heating areas by the central heating element 42 and the two edge heating elements 43. This allows the temperature control module 45 to accurately control the heating range according to different sizes of mobile phone back covers, avoiding heat loss caused by using a full-area heating method and achieving energy saving effect.
[0025] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers, characterized in that, include: Mounting bracket (1), the top of the mounting bracket (1) is provided with an upper vacuum cover (2), and the bottom of the mounting bracket (1) is provided with a lower vacuum cover (3) corresponding to the lower part of the upper vacuum cover (2). The targeted heating assembly (4) includes a heating element (41) installed inside the upper vacuum shroud (2). The lower surface of the heating element (41) is provided with a central heating plate (42). The lower surface of the heating element (41) is provided with two edge heating plates (43) around the outer ring of the central heating plate (42). The surfaces of the central heating plate (42) and the edge heating plates (43) are connected with wires (44). One end of the wires (44) extends to one side of the upper vacuum shroud (2) and is equipped with a temperature control module (45). Automatic loading and unloading assembly (5), the automatic loading and unloading assembly (5) includes a mounting frame (51) set inside the mounting bracket (1), a lead screw (52) is rotatably mounted inside the mounting frame (51), a servo motor (53) is fixedly mounted at one end of the mounting frame (51), the output end of the servo motor (53) is fixedly connected to one end of the lead screw (52), a moving block (54) is threadedly connected to the surface of the lead screw (52), a mounting plate (55) is mounted on the top of the moving block (54), the lower vacuum cover (3) is mounted on the surface of the mounting plate (55), the mounting plate (55) drives the lower vacuum cover (3) to slide along the lead screw (52) to below the upper vacuum cover (2).
2. The energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers according to claim 1, characterized in that: The top two sides of the mounting frame (51) are fixedly mounted with slide rails (6), and the bottom two sides of the mounting plate (55) are mounted with sliders (7), which are slidably mounted on the surface of the slide rails (6).
3. The energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers according to claim 1, characterized in that: A cylinder (8) is fixedly installed at the top of the mounting bracket (1), and a lifting plate (9) is fixedly installed at the telescopic end of the cylinder (8). The upper vacuum cover (2) is fixedly installed at the bottom of the lifting plate (9).
4. The energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers according to claim 3, characterized in that: Limiting rods (10) are fixedly installed around the surface of the lifting plate (9), and limiting sleeves (11) are installed on the surface of the mounting bracket (1). The limiting rods (10) slide inside the limiting sleeves (11).
5. The energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers according to claim 4, characterized in that: A limit block (12) is installed on the top of the limit rod (10).
6. The energy-saving temperature control structure for OMR vacuum bonding of mobile phone back covers according to claim 1, characterized in that: Both the central heating element (42) and the edge heating element (43) use bimetallic heating wires.