Automatic protection mechanism
The automatic protection mechanism uses gear meshing to drive the flap, which solves the problem of material residue in the PU mold overflow structure, achieves precise control of the flap and reliable sealing, reduces manual operation, and prevents the generation of defective products.
Patent Information
- Application Number
- CN202423287846.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In existing technologies, material residue in PU mold overflow structures cannot be automatically isolated, leading to increased manual operation and poor sealing. As the spring mechanism ages, it cannot accurately return to its original position, affecting product quality.
An automatic protection mechanism is adopted, which uses cylinders and stepper motors to drive the flap. The flap is precisely controlled and locked through gear meshing, ensuring that the flap can rotate within the range of 0-180 degrees to prevent spilled material from coming into contact with the product.
The automatic control of the flap has been achieved, which improves the sealing reliability and the maintenance of the flap's working state, reduces manual operation, and prevents the generation of defective products.
Smart Images
Figure CN223589931U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of automobile sunroof, specifically is a kind of automatic protection mechanism. BACKGROUND
[0002] There is a special overflow structure on PU mould, in working process, liquid material injection will be greater than actual product required, and the excess material will be left to overflow, since PU mould is full package structure, the material remaining in overflow mechanism can only be cleaned in mold opening, and the material in overflow mechanism cannot contact product in working process, so it needs a mechanism to isolate product and overflow.
[0003] The existing mechanism is realized by artificial and spring, artificial flap increases workload, and since there is no external applied force, it is not tightly sealed after long time use, and after spring mechanism is used for many times, spring ages and cannot accurately fall into place, therefore, an automatic protection mechanism is provided. UTILITY MODEL CONTENT
[0004] To solve the problems in the above background art, the utility model provides the following technical scheme: an automatic protection mechanism, including mounting seat, rotatably provided with flap on the mounting seat, first gear is arranged on the side of the flap, drive mechanism is arranged on the same side of the mounting seat and the first gear, and the drive mechanism is meshed with the first gear.
[0005] Further, the mounting seat includes base and vertical support parts arranged on both sides of the base respectively, the flap is arranged between the two vertical support parts, and the flap is rotatably connected with the two vertical support parts through the rotating shaft.
[0006] Further, the side wall of the vertical support part is provided with mounting plate, the drive mechanism is mounted on the side wall of the mounting plate, and the rotating shaft penetrates the vertical support part and the mounting plate and is sleeved with the first gear.
[0007] Further, the drive mechanism includes air cylinder, the air cylinder is provided with rack on the telescopic end, and the rack is meshed with the first gear.
[0008] Further, the air cylinder is pressure maintaining air cylinder.
[0009] Further, the drive mechanism includes stepping motor, the output end of the stepping motor is sleeved with second gear, and the second gear is meshed with the first gear through belt.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] The driving mechanism can accurately control the turning angle and has a locking function, so that the reliability of the turning plate in a working state can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not constitute a limitation of the present application. In the drawings:
[0013] Fig. 1 It is a schematic diagram of the overall structure of the embodiment one of the present application;
[0014] Fig. 2 It is a schematic diagram of the overall structure of the embodiment one of the present application;
[0015] Fig. 3 It is a schematic diagram of the overall structure of the embodiment two of the present application;
[0016] In the figure: 1, mounting seat; 101, base; 102, vertical support part; 2, turning plate; 3, first gear; 4, air cylinder; 5, rack; 6, mounting plate; 7, stepping motor; 8, second gear. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0018] By Figs. 1-3 The present application provides an automatic protection mechanism, which comprises a mounting seat 1, a turning plate 2 rotatably arranged on the mounting seat 1, a first gear 3 arranged on one side of the turning plate 2, a driving mechanism arranged on the same side of the mounting seat 1 and the first gear 3, and the driving mechanism is in meshing connection with the first gear 3.
[0019] The automatic protection mechanism is arranged on the overflow groove of the injection machine close to the mold through the mounting seat 1 when in use.
[0020] The mounting seat 1 comprises a base 101 and vertical support parts 102 arranged on both sides of the base 101 respectively, the turning plate 2 is arranged between the two vertical support parts 102, and the turning plate 2 is rotatably connected with the two vertical support parts 102 through a rotating shaft.
[0021] The side wall of the vertical support part 102 is provided with a mounting plate 6, a driving mechanism is mounted on the side wall of the mounting plate 6, a rotating shaft penetrates through the vertical support part 102 and the mounting plate 6 and is sleeved with the first gear 3.
[0022] In the embodiment one, the driving mechanism comprises a cylinder 4, a rack 5 is arranged on the telescopic end of the cylinder 4, the rack 5 is in meshing connection with the first gear 3, and the stroke of the cylinder 4 can realize the overturning angle of 0-180 degrees of the flap 2.
[0023] The cylinder 4 is a pressure maintaining cylinder, the pressure maintaining cylinder has a pressure maintaining electromagnetic valve control, even if the gas is cut off, the cylinder piston rod will always be kept in the working position due to the pressure maintaining action, the flap 2 is prevented from returning, and the reliability of the mechanism is ensured.
[0024] In the embodiment two, the driving mechanism comprises a stepping motor 7, the output end of the stepping motor 7 is sleeved with a second gear 8, the second gear 8 is in meshing connection with the first gear 3 through a belt, and the output end of the stepping motor 7 has a locking effect in the electrified state.
[0025] Working principle: when the PU liquid material is injected into the PU mold, the excess PU liquid material will be squeezed into a special overflow structure arranged on the PU mold, which is usually located at the final material collecting end of the mold. Because of the process requirement, a part of the material needs to be injected more during the PU injection, and the volume of this part of the material will be smaller than the volume of the overflow groove, and will be completely left in the overflow groove. The generation of bubbles during the injection of the PU material can be eliminated to prevent the formation of defective products. When the material is injected, the cylinder 4 is extended, the rack 5 is pushed forward, thereby driving the first gear 3 to rotate, and then driving the flap 2 to move through the rotating shaft. The flap 2 covers above the overflow groove to prevent the glass surface from contacting the PU, which causes the generation of defective products. In the embodiment two, the stepping motor 7 works to drive the second gear 8 to rotate, thereby driving the first gear 3 to rotate through the belt, and then driving the flap 2 to move.
[0026] It should be noted that, in the present document, the terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic protection mechanism, characterized in that: Includes a mounting base (1), on which a flap (2) is rotatably mounted, and a first gear (3) is provided on one side of the flap (2). A drive mechanism is provided on the same side of the mounting base (1) and the first gear (3), and the drive mechanism is meshed with the first gear (3).
2. The automatic protection mechanism according to claim 1, characterized in that: The mounting base (1) includes a base (101) and vertical support parts (102) respectively disposed on both sides of the base (101). A flap (2) is disposed between the two vertical support parts (102), and the flap (2) is rotatably connected to the two vertical support parts (102) through a rotating shaft.
3. An automatic protection mechanism according to claim 2, characterized in that: The vertical support part (102) has a mounting plate (6) on its side wall. The mounting plate (6) has a drive mechanism installed on its side wall. The rotating shaft passes through the vertical support part (102) and the mounting plate (6) and is fitted with a first gear (3).
4. An automatic protection mechanism according to claim 1, 2 or 3, characterized in that: The driving mechanism includes a cylinder (4), and a rack (5) is provided on the telescopic end of the cylinder (4), which meshes with the first gear (3).
5. An automatic protection mechanism according to claim 4, characterized in that: The cylinder (4) is a pressure-holding cylinder.
6. An automatic protection mechanism according to claim 1, characterized in that: The drive mechanism includes a stepper motor (7), and a second gear (8) is sleeved on the output end of the stepper motor (7). The second gear (8) is connected to the first gear (3) by a belt.