Film-coated door frame and automatic lifting door system

By setting a coating structure, including a thin film layer and an adhesive layer, on the outer surface of the upper frame of the lifting door, and setting micro-textured grooves on the contact surface, the problem of bonding resistance between the silicone edge strip and the upper frame of the lifting door is solved, thereby improving the smoothness of the lifting door's movement and the stability of the system.

CN224532589UActive Publication Date: 2026-07-21SUZHOU FLASHFORGE 3D TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU FLASHFORGE 3D TECHNOLOGY CO LTD
Filing Date
2025-06-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, the bonding resistance between the silicone edge strip and the upper frame of the lifting door is large, which affects the smoothness of the lifting door's movement and may even trigger an overload alarm, leading to unstable operation of the automatic lifting door system.

Method used

A film structure is provided on the outer surface of the upper frame of the lifting door, including a thin film layer and an adhesive layer. The thin film layer is connected to the upper frame of the lifting door through the adhesive layer. The thin film layer covers the outer surface of the upper frame of the lifting door in the circumferential direction, and micro-textured grooves are provided on the contact surface to increase the contact area and improve the anti-adhesion ability.

Benefits of technology

This effectively reduces the bonding resistance between the silicone edging strip and the upper frame of the lifting door, making the lifting door move more smoothly and ensuring the operational stability of the automatic lifting door system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of film covering, especially relates to a film covering door frame and automatic lifting door system. Film covering door frame includes: lifting door upper frame, adhesive layer and film layer, adhesive layer is located between film layer and lifting door upper frame, and film layer is covered on the outer surface of lifting door upper frame along the circumference. The utility model discloses the contact surface of lifting door upper frame carries out the film covering treatment, improves the anti -adhesion ability of contact surface, effectively reduces the adhesion resistance between silica gel edge binding strip and lifting door upper frame, makes the movement of lifting door more smooth.
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Description

Technical Field

[0001] This utility model relates to the field of film coating technology, and in particular to a film-coated door frame and an automatic lifting door system. Background Technology

[0002] In 3D printing equipment, silicone parts are often used to fill gaps at the joints to achieve aesthetically pleasing products. However, silicone aging is a common problem. Currently, most methods for addressing silicone aging include cleaning with alcohol and baking soda, but there is currently a lack of effective solutions for the adhesion problems caused by silicone aging.

[0003] In an automatic sliding door system, the sliding door moves up and down driven by a motor, with the upper frame moving synchronously with the door. Due to high temperatures or aging after prolonged use, the silicone edging strip can become sticky to the upper frame, affecting the smoothness of the door's movement and even triggering an overload alarm. Therefore, it is necessary to reduce the adhesive resistance between the silicone edging strip and the upper frame to ensure the stability of the mechanism's operation. Utility Model Content

[0004] The purpose of this invention is to provide a film-coated door frame and an automatic lifting door system to alleviate the problem of high bonding resistance between the silicone edge strip and the upper frame of the lifting door in the prior art, which affects the normal operation of the lifting door.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] In a first aspect, the present invention provides a film-coated door frame, comprising: a lifting door upper frame, an adhesive layer and a film layer, wherein the adhesive layer is disposed between the film layer and the lifting door upper frame, and the film layer covers the outer surface of the lifting door upper frame circumferentially.

[0007] Furthermore, the adhesive layer is applied to the surface of the thin film layer to form a coating structure, and the coating structure covers the outer surface of the upper frame of the lifting door in the circumferential direction.

[0008] Furthermore, the outer surface of the upper frame of the lifting door is provided with a groove structure, the adhesive layer is sprayed onto the groove structure, and the thin film layer is sprayed onto the outside of the adhesive layer.

[0009] Furthermore, the groove structure includes a plurality of rectangular microtextured grooves arranged in an array.

[0010] Furthermore, the length of the rectangular microtextured groove ranges from 50 to 100 μm, the width ranges from 50 to 100 μm, the lateral spacing between two adjacent rectangular microtextured grooves ranges from 50 to 150 μm, and the longitudinal spacing ranges from 50 to 150 μm.

[0011] Furthermore, the groove structure includes a plurality of circular microtextured grooves arranged in an array.

[0012] Furthermore, the radius of the circular microtextured groove is in the range of 40-60μm, the lateral spacing between two adjacent circular microtextured grooves is in the range of 50-150μm, and the longitudinal spacing is in the range of 50-150μm.

[0013] Furthermore, the film layer comprises a wood pulp fiber film, and the adhesive layer comprises an acrylic layer.

[0014] Secondly, this utility model provides an automatic lifting door system, including a door frame, a silicone edging strip, a lifting door, and the film-coated door frame described in the first aspect. The lifting door is installed on the film-coated door frame, the silicone edging strip is fixedly disposed on the top of the door frame, and the lifting door and the film-coated door frame are disposed inside the door frame and slidably connected to the door frame.

[0015] Furthermore, the lifting door is connected to a lifting drive motor.

[0016] This utility model brings at least the following beneficial effects:

[0017] This utility model provides a film-coated door frame, including: a lifting door upper frame, an adhesive layer and a film layer, wherein the adhesive layer is disposed between the film layer and the lifting door upper frame, and the film layer covers the outer surface of the lifting door upper frame circumferentially.

[0018] The outer surface of the upper frame of the lifting door is covered with a thin film layer, which achieves a stable connection with the upper frame of the lifting door through an adhesive layer. By coating the contact surface of the upper frame of the lifting door with a film, the anti-adhesion ability of the contact surface is improved, effectively reducing the adhesive resistance between the silicone edge strip and the upper frame of the lifting door, making the movement of the lifting door smoother and ensuring the stability of the automatic lifting door system.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1A schematic diagram of the film-coated door frame provided in Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the rectangular microtextured groove provided in Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram of the circular microtextured groove provided in Embodiment 1 of the present invention;

[0024] Figure 4 This is a schematic diagram of the automatic lifting door system provided in Embodiment 2 of this utility model.

[0025] icon:

[0026] 100 - Coated door frame; 110 - Upper frame of lifting door; 120 - Adhesive layer; 130 - Thin film layer; 140 - Groove structure; 141 - Rectangular microtextured groove; 142 - Circular microtextured groove;

[0027] 200 - Door frame; 300 - Silicone edging strip; 400 - Lifting door. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. 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.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0031] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other. Figure 1 A schematic diagram of the film-coated door frame provided in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the rectangular microtextured groove provided in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the circular microtextured groove provided in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the automatic lifting door system provided in Embodiment 2 of this utility model.

[0034] Example 1

[0035] In an automatic sliding door system, the sliding door moves up and down driven by a motor, with the upper frame moving synchronously with the door. Due to high temperatures or aging after prolonged use, the silicone edging strip can become sticky to the upper frame, affecting the smoothness of the door's movement and potentially triggering an overload alarm. Therefore, it is necessary to reduce the adhesive resistance between the silicone edging strip and the upper frame to ensure the stability of the mechanism.

[0036] In view of this, the present utility model provides a film-coated door frame, including: a lifting door upper frame 110, an adhesive layer 120 and a film layer 130, wherein the adhesive layer 120 is disposed between the film layer 130 and the lifting door upper frame 110, and the film layer 130 covers the outer surface of the lifting door upper frame 110 in the circumferential direction.

[0037] The outer surface of the upper frame 110 of the lifting door is covered with a thin film layer 130, which is stably connected to the upper frame 110 of the lifting door through an adhesive layer 120. By coating the contact surface of the upper frame 110 of the lifting door with a film, the anti-adhesion ability of the contact surface is improved, effectively reducing the adhesive resistance between the silicone edge strip and the upper frame 110 of the lifting door, making the movement of the lifting door smoother and ensuring the stability of the automatic lifting door system.

[0038] To reduce the adhesion between the silicone edge banding strip and the upper frame 110 of the lifting door, this embodiment provides the following two coating techniques.

[0039] Method 1: The adhesive layer 120 is applied to the surface of the film layer 130 to form a film structure, and the film structure covers the outer surface of the upper frame 110 of the lifting door in the circumferential direction.

[0040] Please see Figure 1 This method involves applying an adhesive to the thin film layer 130 to form an adhesive layer 120, which is then baked at high temperature to form a coating structure to ensure stable adhesive performance. The coating structure is then applied to the contact surface of the upper frame 110 of the lifting door. By applying a coating to the contact surface, the anti-adhesion capability of the contact surface is improved.

[0041] Method 2: The outer surface of the upper frame 110 of the lifting door is provided with a groove structure 140, the adhesive layer 120 is sprayed on the groove structure 140, and the film layer 130 is sprayed on the outside of the adhesive layer 120.

[0042] This method involves first using an ultraviolet laser marking device to process a groove structure 140 on the contact surface area of ​​the upper frame 110 of the lifting door, then spraying an adhesive onto the groove structure 140 to form an adhesive layer 120, then spraying a thin film layer 130 onto the adhesive layer 120, and finally baking at high temperature to effectively ensure the stability of the overall structure.

[0043] This embodiment provides the following two ways of setting the groove structure 140.

[0044] In the first embodiment, the groove structure 140 includes a plurality of rectangular microtextured grooves 141 arranged in an array. See also... Figure 2 Two rows of groove structures 140 are provided on the contact surface area of ​​the upper frame 110 of the lifting door. Each row of groove structures 140 includes five spaced rectangular micro-textured grooves 141. The length and width of the rectangular micro-textured grooves 141 range from 50 to 100 μm. The lateral spacing between two adjacent rectangular micro-textured grooves 141 ranges from 50 to 150 μm, and the longitudinal spacing ranges from 50 to 150 μm.

[0045] The length of the rectangular microtextured groove 141 can be selected from values ​​such as 50μm, 60μm, 70μm, 80μm, 90μm, and 100μm, with 80μm being the preferred value. The width of the rectangular microtextured groove 141 can be selected from values ​​such as 50μm, 60μm, 70μm, 80μm, 90μm, and 100μm, with 80μm being the preferred value. The lateral spacing between two adjacent rectangular microtextured grooves 141 can be selected from values ​​such as 50μm, 60μm, 70μm, 80μm, 90μm, 100μm, 110μm, 120μm, 130μm, 140μm, and 150μm, with 100μm being the preferred value. The longitudinal spacing of the two rows of rectangular microtextured grooves 141 can be selected from values ​​such as 50μm, 60μm, 70μm, 80μm, 90μm, 100μm, 110μm, 120μm, 130μm, 140μm and 150μm, with 100μm being the preferred value.

[0046] In the second embodiment, the groove structure 140 includes a plurality of circular microtextured grooves 142 arranged in an array. See also... Figure 3 Similarly, two rows of groove structures 140 are provided on the contact surface area of ​​the upper frame 110 of the lifting door. Each row of groove structures 140 includes five spaced circular micro-textured grooves 142. The radius of the circular micro-textured grooves 142 ranges from 40 to 60 μm, the lateral spacing between two adjacent circular micro-textured grooves 142 ranges from 50 to 150 μm, and the longitudinal spacing ranges from 50 to 150 μm.

[0047] The radius of the circular microtextured grooves 142 can be selected from values ​​such as 40μm, 45μm, 50μm, 55μm, and 60μm, with 50μm being the preferred value. The lateral spacing between two adjacent circular microtextured grooves 142 can be selected from values ​​such as 50μm, 60μm, 70μm, 80μm, 90μm, 100μm, 110μm, 120μm, 130μm, 140μm, and 150μm, with 100μm being the preferred value. The longitudinal spacing between two rows of circular microtextured grooves 142 can be selected from values ​​such as 50μm, 60μm, 70μm, 80μm, 90μm, 100μm, 110μm, 120μm, 130μm, 140μm, and 150μm, with 100μm being the preferred value.

[0048] It should be noted that this embodiment only provides one arrangement of rectangular microtextured groove 141 or circular microtextured groove 142. Those skilled in the art can also use other layout forms or set microtextured grooves of other shapes.

[0049] By designing micro-textured grooves of a specific size in the contact area of ​​the upper frame 110 of the lifting door, the contact area between the film layer 130 and the upper frame 110 of the lifting door can be increased, thereby improving the adhesion performance of the coating.

[0050] In an optional embodiment, the film layer 130 includes a wood pulp fiber film, and the adhesive layer 120 includes an acrylic layer.

[0051] Based on the motion principle of automatic lifting door systems, the inventors analyzed the causes of motion resistance and, after comparing various fiber materials and their properties, selected wood pulp fiber as the film layer 130. A fiber film was added to the outer surface of the upper frame 110 of the lifting door using a coating technique. The molecular formula of the wood pulp fiber is (C6H2O). 10 O5) n The adhesive used was purchased from Baofeng Mineral Processing Plant (model 2dtex), and acrylic resin E0537 from Shenzhen Yoshida Chemical Co., Ltd. was selected as the adhesive for bonding layer 120. Using wood pulp fiber as the coating material significantly reduces bonding resistance and ensures the stability of the mechanism's operation.

[0052] Example 2

[0053] This embodiment provides an automatic lifting door system, including a door frame 200, a silicone edging strip 300, a lifting door 400, and a laminated door frame 100 as described in Embodiment 1. The lifting door 400 is installed on the laminated door frame 100, the silicone edging strip 300 is fixedly installed on the top of the door frame 200, and the lifting door 400 and the laminated door frame 100 are disposed inside the door frame 200 and are slidably connected to the door frame 200.

[0054] Please see Figure 4 The lifting door 400 is connected to a lifting drive motor, which drives the lifting door 400 to move up and down. The laminated door frame 100 moves synchronously with the lifting door 400, while the door frame 200 and the silicone edging strip 300 remain stationary. After being exposed to high temperatures or prolonged use, the silicone edging strip 300 may develop a certain degree of adhesion to the laminated door frame 100. By adding a fiber film to the door frame surface in contact with the silicone edging strip 300 using lamination technology, the adhesive resistance between the silicone and PC materials can be significantly reduced, ensuring smooth and stable operation of the automatic lifting door system.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A laminated door frame, characterized in that, include: The upper frame of the lifting door, an adhesive layer, and a film layer are provided, wherein the adhesive layer is disposed between the film layer and the upper frame of the lifting door, and the film layer covers the outer surface of the upper frame of the lifting door circumferentially.

2. The film-coated door frame according to claim 1, characterized in that, The adhesive layer is applied to the surface of the thin film layer to form a coating structure, and the coating structure covers the outer surface of the upper frame of the lifting door in the circumferential direction.

3. The film-coated door frame according to claim 1, characterized in that, The outer surface of the upper frame of the lifting door is provided with a groove structure, the adhesive layer is sprayed onto the groove structure, and the thin film layer is sprayed onto the outside of the adhesive layer.

4. The film-coated door frame according to claim 3, characterized in that, The groove structure includes multiple rectangular microtextured grooves arranged in an array.

5. The film-coated door frame according to claim 4, characterized in that, The length of the rectangular microtextured groove ranges from 50 to 100 μm, the width ranges from 50 to 100 μm, the lateral spacing between two adjacent rectangular microtextured grooves ranges from 50 to 150 μm, and the longitudinal spacing ranges from 50 to 150 μm.

6. The film-coated door frame according to claim 3, characterized in that, The groove structure includes multiple circular microtextured grooves arranged in an array.

7. The film-coated door frame according to claim 6, characterized in that, The radius of the circular microtextured groove is 40-60μm, the lateral spacing between two adjacent circular microtextured grooves is 50-150μm, and the longitudinal spacing is 50-150μm.

8. The film-coated door frame according to any one of claims 1-7, characterized in that, The film layer comprises a wood pulp fiber film, and the adhesive layer comprises an acrylic layer.

9. An automatic lifting door system, characterized in that, The device includes a door frame, a silicone edging strip, a lifting door, and a laminated door frame as described in any one of claims 1-8. The lifting door is installed on the laminated door frame, the silicone edging strip is fixedly disposed on the top of the door frame, and the lifting door and the laminated door frame are disposed inside the door frame and slidably connected to the door frame.

10. The automatic lifting door system according to claim 9, characterized in that, The lifting door is connected to a lifting drive motor.