Limiting device of vacuum coating machine

Abstract

The utility model discloses a limiting device of a vacuum coating machine, which belongs to the technical field of vacuum coating machines and comprises a vacuum chamber body frame, a hinge is fixedly mounted on one side of the vacuum chamber body frame, a vacuum chamber door frame is fixedly connected to the end of the hinge, and limiting devices are arranged at the top of the vacuum chamber door frame and the top of the vacuum chamber body frame. According to the utility model, the proximity sensor, the protective cover, the connecting column, the spring, the detection plate and other structures are arranged on the vacuum chamber door frame and the vacuum chamber body frame, and the closing condition of the vacuum chamber door frame and the vacuum chamber body frame is detected through the cooperation between the proximity sensor and the detection plate; and meanwhile, the protective cover is additionally arranged on the outer side of the detection end of the proximity sensor, so that damage to the proximity sensor due to improper manual adjustment or contact in the using process is avoided, the proximity sensor can be better protected, and the practicability of the limiting device of the vacuum coating machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum coating machine technical field, more specifically, relate to a kind of limiting device of vacuum coating machine. BACKGROUND

[0002] With the rapid development of various industries, more and more products need to be coated, so the use of vacuum coating machines is increasing. During the use of vacuum coating machines, it is particularly important to use them correctly and safely. For example, when the door of a vacuum coating machine is open, the vacuum system cannot be started, otherwise the vacuum pump set will be damaged; the coating source cannot be started, otherwise the coating system will be damaged; various power sources cannot be started, otherwise there is a risk of electric shock; the heater cannot be started, otherwise there is a risk of scalding. Any accident will cause significant losses, so a reliable limiting device is needed to protect the vacuum coating machine and prevent illegal operations when the door of the vacuum coating machine is open.

[0003] The limiting device can be detected by mechanical contact or proximity sensor. Since the mechanical contact detection method has poor precision and high failure rate, proximity sensor detection is usually used. In this method, a detection plate is placed in front of the proximity sensor. When the distance between the detection plate and the proximity sensor reaches the detection distance, the proximity sensor will have a detection signal, and the vacuum coating machine will perform related operations upon receiving the detection signal. In the traditional proximity sensor limiting device, the distance between the detection plate and the proximity sensor is adjusted first, and then their positions are fixed. With the use of the vacuum coating machine, the distance between them will change. When the distance is greater than the detection distance, there is no detection signal. When the distance is less than the detection distance, the proximity sensor may be damaged due to contact between the two. These two situations will affect the use of the vacuum coating machine. Therefore, we propose a limiting device for a vacuum coating machine. SUMMARY

[0004] To solve the problems mentioned in the background technology, the purpose of the present utility model is to provide a limiting device for a vacuum coating machine.

[0005] To solve the above problems, the utility model adopts the following technical solution:

[0006] The application relates to a limiting device of a vacuum coating machine, which comprises a vacuum chamber body frame, a hinge fixedly installed on one side of the vacuum chamber body frame, a vacuum chamber door frame fixedly connected to the end of the hinge, a limiting device arranged on the top of the vacuum chamber door frame and the vacuum chamber body frame, a bracket II installed on the vacuum chamber body frame and a bracket I installed on the vacuum chamber door frame, a proximity sensor sleeved on the bracket I, a protective cover sleeved on the outer side of the proximity sensor, a detection end of the proximity sensor located on the inner side of the protective cover, a connecting column sleeved on the bracket II, a detection plate fixedly connected to one end of the connecting column, a spring sleeved between the detection plate and the bracket II, the spring sleeved on the outer side of the connecting column, and the end surface of the detection plate in contact with the end surface of the protective cover.

[0007] As a preferred scheme of the application, an O-shaped sealing ring is fixedly installed on the inner side of the vacuum chamber door frame, and the side surface of the O-shaped sealing ring is attached to the side surface of the vacuum chamber body frame.

[0008] As a preferred scheme of the application, rotary locks are arranged on the side portions of the vacuum chamber door frame and the vacuum chamber body frame.

[0009] As a preferred scheme of the application, the proximity sensor and the protective cover are installed on the bracket I through two nuts.

[0010] As a preferred scheme of the application, the connecting column is installed on the bracket II through two nuts.

[0011] As a preferred scheme of the application, the bracket I and the bracket II are installed on the vacuum chamber door frame and the vacuum chamber body frame respectively through inner hexagonal cylindrical head screws.

[0012] The application has the following advantages:

[0013] (1) In the application, the proximity sensor, the protective cover, the connecting column, the spring and the detection plate are arranged on the vacuum chamber door frame and the vacuum chamber body frame, the closing state of the vacuum chamber door frame and the vacuum chamber body frame is detected through cooperation between the proximity sensor and the detection plate, the protective cover is arranged on the outer side of the detection end of the proximity sensor, the damage of the proximity sensor caused by improper adjustment or contact in the use process is avoided, the proximity sensor is better protected, and the practicability of the limiting device of the vacuum coating machine is improved.

[0014] (2) The utility model discloses a spring mechanism is added in the limiting device, when the vacuum chamber door frame and vacuum chamber body frame are pasted, make the protection cover end surface and the detection plate contact, and guarantee that the detection plate has certain compression, avoid the looseness that brings because of improper human adjustment or use process, lead to the proximity sensor unable to detect signal, better guarantee the use reliability of limiting device, improve the working quality of the vacuum coating machine limiting device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure top view schematic drawing of the utility model when closing the door state;

[0016] Figure 2 It is the structure main view schematic drawing of the utility model when closing the door state;

[0017] Figure 3 It is the structure top view schematic drawing of the utility model when opening the door state;

[0018] Figure 4 It is the top view schematic drawing of the utility model limiting device;

[0019] Figure 5 It is the main view sectional surface schematic drawing of the utility model limiting device.

[0020] Mark explanation in drawing:

[0021] 1-1, hinge;1-2, O type sealing ring;1-3, vacuum chamber door frame;1-4, vacuum chamber body frame;1-5, rotary lock;2, limiting device;2-1, support one;2-2, proximity sensor;2-3, protection cover;2-4, support two;2-5, connecting column;2-6, spring;2-7, detection plate. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] In the description of the utility model, it needs to explain, the term "upper", "lower", "inner", "outer", "top / bottom end" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, with a particular orientation structure and operation, therefore cannot be understood as a limitation on the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the term "installation", "provided with", "sleeved / connected", "connection" and so on, should be broadly understood, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Embodiment:

[0026] Please refer to Figures 1-5 A limiting device of vacuum coating machine, including vacuum chamber body frame 1-4, one side of vacuum chamber body frame 1-4 is fixedly installed with hinge 1-1, the end of hinge 1-1 is fixedly connected with vacuum chamber door frame 1-3, the top of vacuum chamber door frame 1-3 and vacuum chamber body frame 1-4 is provided with limiting device 2, limiting device 2 includes support two 2-4 installed on vacuum chamber body frame 1-4 and support one 2-1 installed on vacuum chamber door frame 1-3, support one 2-1 is sleeved with proximity sensor 2-2, the outer side of proximity sensor 2-2 is sleeved with protective cover 2-3, the detection end of proximity sensor 2-2 is located at the inner side of protective cover 2-3, support two 2-4 is sleeved with connecting column 2-5, one end of connecting column 2-5 is fixedly connected with detection plate 2-7, spring 2-6 is sleeved between detection plate 2-7 and support two 2-4, spring 2-6 is sleeved at the outer side of connecting column 2-5, the end face of detection plate 2-7 and the end face of protective cover 2-3 are in contact.

[0027] In the embodiment, when vacuum chamber door frame 1-3 and vacuum chamber body frame 1-4 are closed, spring 2-6 is in compression state.

[0028] Specifically, please refer to Figures 1 to 3 The inner side of vacuum chamber door frame 1-3 is fixedly installed with O-shaped sealing ring 1-2, the side of O-shaped sealing ring 1-2 and the side of vacuum chamber body frame 1-4 are in contact.

[0029] In this embodiment, the O-shaped sealing ring 1-2 is used for sealing between the vacuum chamber door frame 1-3 and the vacuum chamber body frame 1-4.

[0030] Specifically, please refer to Figures 1 to 3 , the side of the vacuum chamber door frame 1-3 and the vacuum chamber body frame 1-4 is provided with a rotary lock 1-5.

[0031] In this embodiment, one end of the rotary lock 1-5 is fixed on the vacuum chamber door frame 1-3, and the other end of the rotary lock 1-5 is fixed on the vacuum chamber body frame 1-4. The rotary lock 1-5 is used for locking the vacuum chamber door frame 1-3 on the vacuum chamber body frame 1-4.

[0032] Specifically, please refer to Figure 4 and Figure 5 , the proximity sensor 2-2 and the protective cover 2-3 are installed on the bracket one 2-1 through two nuts.

[0033] In this embodiment, one nut is installed on one side of the bracket one 2-1, and the other nut is installed on the other side of the bracket one 2-1, and the nut is located in the inner cavity of the protective cover 2-3.

[0034] Specifically, please refer to Figure 4 and Figure 5 , the connecting column 2-5 is installed on the bracket two 2-4 through two nuts.

[0035] In this embodiment, the outer side of the connecting column 2-5 is provided with external threads, so that the nut can be installed on the external threads of the connecting column 2-5, and the connecting column 2-5 and the detection plate 2-7 are fixed.

[0036] Specifically, please refer to Figure 4 , the bracket one 2-1 and the bracket two 2-4 are installed on the vacuum chamber door frame 1-3 and the vacuum chamber body frame 1-4 respectively through the inner hexagonal cylindrical head screw.

[0037] In this embodiment, two mounting holes are formed on the bracket one 2-1 and the bracket two 2-4, and the inner hexagonal cylindrical head screw is inserted into the mounting hole to install the bracket one 2-1 and the bracket two 2-4.

[0038] Working principle: when the door is opened, the vacuum chamber door frame 1-3 and the vacuum chamber body frame 1-4 are 90 degrees, the structure on the bracket one 2-1 and the structure on the bracket two 2-4 in the limiting device 2 are separated, the proximity sensor 2-2 cannot detect the signal, and the related mechanism of the vacuum coating machine cannot be started; when the door is closed, the vacuum chamber door frame 1-3 and the vacuum chamber body frame 1-4 are combined, the end face of the protective cover 2-3 on the bracket one 2-1 contacts with the detection plate 2-7 on the bracket two 2-4, the proximity sensor 2-2 can detect the signal, and the related mechanism of the vacuum coating machine can be started.

[0039] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A limiting device of a vacuum coating machine, comprising a vacuum chamber body frame (1-4), characterized in that: The side of the vacuum chamber body frame (1-4) is fixedly installed with a hinge (1-1), the end of the hinge (1-1) is fixedly connected with a vacuum chamber door frame (1-3), the vacuum chamber door frame (1-3) and the top of the vacuum chamber body frame (1-4) are provided with a limiting device (2), the limiting device (2) comprises a bracket two (2-4) installed on the vacuum chamber body frame (1-4) and a bracket one (2-1) installed on the vacuum chamber door frame (1-3), the bracket one (2-1) is sleeved with a proximity sensor (2-2), the outer side of the proximity sensor (2-2) is sleeved with a protective cover (2-3), the detection end of the proximity sensor (2-2) is located on the inner side of the protective cover (2-3), the bracket two (2-4) is sleeved with a connecting column (2-5), one end of the connecting column (2-5) is fixedly connected with a detection plate (2-7), the detection plate (2-7) and the bracket two (2-4) are sleeved with a spring (2-6), the spring (2-6) is sleeved on the outer side of the connecting column (2-5), the end face of the detection plate (2-7) and the end face of the protective cover (2-3) are in contact.

2. The limiting device of a vacuum coating machine according to claim 1, characterized in that: The inner side of the vacuum chamber door frame (1-3) is fixedly installed with an O-shaped sealing ring (1-2), the side of the O-shaped sealing ring (1-2) is in contact with the side of the vacuum chamber body frame (1-4).

3. The limiting device of a vacuum coating machine according to claim 1, wherein: The side of the vacuum chamber door frame (1-3) and the vacuum chamber body frame (1-4) is provided with a rotary lock (1-5).

4. The limiting device of a vacuum coating machine according to claim 1, wherein: The proximity sensor (2-2) and the protective cover (2-3) are installed on the bracket one (2-1) through two nuts.

5. The limiting device of a vacuum coating machine according to claim 1, wherein: The connecting column (2-5) is installed on the bracket two (2-4) through two nuts.

6. The limiting device of a vacuum coating machine according to claim 1, wherein: The bracket one (2-1) and the bracket two (2-4) are installed on the vacuum chamber door frame (1-3) and the vacuum chamber body frame (1-4) through inner hexagonal cylindrical head screws respectively.

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