Chain linkage double-leaf door device

Abstract

The utility model relates to laser cutting machine technology field especially relates to a chain linkage split door device, including machine frame, the machine frame inboard leans door place and installs left and right surrounding sheet metal, install the cylinder on surrounding sheet metal, the sprocket is meshed and is installed with the chain that links with vertical connecting plate and lower door connecting plate, to realize linkage upper door and linkage lower door operation simultaneously. The utility model greatly alleviates operator's labor intensity, and linkage structure of guide rail sliding block is realized with the help of cylinder, chain, linkage upper and lower door automatic switch, replaces traditional frequent manual operation, reduces the amount of repetitive labor, the utility model can realize safety interlock control, completely avoids the risk that equipment is not stopped and contacts moving parts because of negligence or misoperation when traditional manual switch door, effectively promotes the essential safety level of single platform full-surrounding laser cutting machine, and the personal safety and equipment stable operation of operator in the operation process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, and in particular to a chain-linked double-door device. Background Technology

[0002] Single-platform, fully enclosed laser cutting machines occupy an important market position in small and medium-sized sheet metal processing enterprises due to their advantages such as small footprint, compact structure, and good safety protection.

[0003] Traditional equipment uses manual door opening and closing. During processing, operators frequently open and close the doors manually, posing a risk of contact with moving parts before the equipment has completely stopped due to negligence or misoperation. Furthermore, the heavy and repetitive manual door opening and closing increases the operator's workload and negatively impacts their work experience. Therefore, we provide a chain-linked double-door device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a chain-linked double-door device, which solves the technical problems of increased operator workload and reduced production efficiency caused by traditional manual operation. It achieves the effect of automatic opening and closing of the upper and lower doors in linkage, reducing operator workload, realizing safety interlock control, ensuring operator safety and stable equipment operation, and improving production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a chain-linked double-door device, including a frame.

[0006] The inner side of the frame near the door is fitted with left and right surround sheet metal. A cylinder is mounted on the surround sheet metal, and a vertical connecting plate is mounted on the telescopic end of the cylinder. An upper door connecting plate is mounted on the vertical connecting plate, and a linkage upper door is mounted on the upper door connecting plate, which is slidably connected to the frame. A guide rail is mounted on the inner side of the frame near the surround sheet metal, and a lower door connecting plate is slidably connected to the guide rail. A linkage lower door, adapted to the linkage upper door, is mounted on the lower door connecting plate. A fixed sheet metal part is mounted on the upper inner side of the frame, and a sprocket is rotatably mounted on the inner side of the fixed sheet metal part. A chain connected to the vertical connecting plate and the lower door connecting plate is meshed on the sprocket to realize the simultaneous operation of the linkage upper door and the linkage lower door.

[0007] Preferably, a door opening sensor limiter and a limit sensor plate are installed above and in the middle of the frame near the door, respectively.

[0008] Preferably, the frame is equipped with door closing limiters distributed on the side of the limit sensor plate near the door, and the upper door connecting plate and the lower door connecting plate are connected to the guide rail through sliders installed on their respective sides.

[0009] Preferably, when the cylinder extends, the sprocket rotates counterclockwise, and when the cylinder retracts, the sprocket rotates clockwise.

[0010] Preferably, when the upper and lower doors move synchronously, they move at the same speed.

[0011] Preferably, multiple sets of light-shielding panels are provided in the linked upper door and linked lower door.

[0012] By employing the above technical solution, this utility model provides a chain-linked double-door device, which has at least the following beneficial effects: 1. This utility model significantly reduces the labor intensity of operators. By using the linkage structure of cylinder, chain and guide rail slider, it realizes the automatic opening and closing of the door, replacing the traditional frequent manual operation, reducing repetitive labor, improving human-machine interaction experience, and enhancing the convenience of product production.

[0013] 2. This utility model can realize safety interlock control. When the door is open, the equipment will be restricted from cutting. Cutting can only be carried out after the door is completely closed. This completely avoids the risk of contact with moving parts due to negligence or misoperation when manually opening and closing the door. It effectively improves the inherent safety level of the single-platform full-enclosure laser cutting machine and effectively protects the personal safety of the operator and the stable operation of the equipment during the operation. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the frame of this utility model; Figure 3 This is a schematic diagram of the linkage structure of this utility model; Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. Frame; 2. Sheet metal enclosure; 3. Cylinder; 4. Vertical connecting plate; 5. Upper door connecting plate; 6. Linked upper door; 7. Guide rail; 8. Lower door connecting plate; 9. Linked lower door; 10. Fixed sheet metal parts; 11. Sprocket; 12. Chain; 13. Door opening sensor limiter; 14. Limit sensor plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] To address the issues of increased operator workload and reduced production efficiency caused by traditional manual operation, this embodiment provides a chain-linked double-door device. This device enables automatic opening and closing of the upper and lower doors, reducing operator workload and providing safety interlock control to ensure operator safety and stable equipment operation, thereby improving production efficiency. Please refer to... Figure 1 - Figure 4 The chain-linked double-door device includes a frame 1. The frame 1 is equipped with door closing limit sensors distributed on the side of the limit sensor plate 14 near the door. These sensors accurately monitor the closing status of the upper door 6 and the lower door 9, and can feed back the signal of whether the two doors are fully closed to the equipment control system. This ensures that the laser cutting machine can only start cutting operations when both doors are fully closed. From a hardware perspective, this avoids the risk of equipment malfunction when the doors are not fully closed, or the risk of the operator accidentally touching the internal moving parts, and further enhances the safety interlock control effect.

[0019] Traditional single-platform fully enclosed laser cutting machines require manual door opening and closing. During processing, operators need to frequently open and close the door manually, which poses a risk of contact with moving parts due to negligence or misoperation when the equipment has not completely stopped. Furthermore, the manual operation is heavy and repetitive, increasing the operator's labor intensity and affecting their work experience. In order to solve the above problems...

[0020] Left and right surround sheet metal 2 is installed on the inner side of the frame 1 near the door. A cylinder 3 is mounted on the surround sheet metal 2. When the cylinder 3 extends, the sprocket 11 rotates counterclockwise; when the cylinder 3 retracts, the sprocket 11 rotates clockwise. This fixed transmission direction achieves precise reverse synchronous movement between the upper door 6 and the lower door 9, improving the automation performance of the device and reducing the operator's workload. A vertical connecting plate 4 is installed at the extension end of the cylinder 3. An upper door connecting plate 5 is installed on the vertical connecting plate 4, and the upper door 6 is slidably connected to the frame 1 on the upper door connecting plate 5. A guide rail 7 is installed on the inner side of the frame 1 near the surround sheet metal 2. A lower door connecting plate 8 is slidably connected to the guide rail 7. The upper door connecting plate 5 and the lower door connecting plate 8 are connected to the guide rail 7 via sliders installed on their respective sides. The sliders on the guide rail 7 provide support and guidance, ensuring the safety and reliability of the device. A linkage adapted to the upper door 6 is installed on the lower door connecting plate 8. When the lower door 9 and the upper door 6 move synchronously, their speeds are the same, ensuring that the two doors maintain a consistent rhythm during opening and closing. This avoids misalignment, jamming, or collisions caused by speed differences, ensuring smooth and stable automatic door opening and closing. Simultaneously, it allows the two doors to accurately and synchronously reach the monitoring positions of the door opening sensor limiter 13 and the door closing sensor limiter, ensuring accurate transmission of door opening and closing signals to the equipment control system, providing reliable support for safety interlock control. Multiple light-shielding plates are installed in the upper door 6 and the lower door 9 to effectively prevent light leakage after the double-linked doors are closed, improving product quality. A fixed sheet metal part 10 is installed on the upper inner side of the frame 1, and a sprocket 11 is rotatably installed on the inner side of the fixed sheet metal part 10. A chain 12, connected to the vertical connecting plate 4 and the lower door connecting plate 8, is meshed on the sprocket 11 to achieve simultaneous operation of the upper door 6 and the lower door 9.

[0021] A door opening sensor limiter 13 and a limit sensor plate 14 are respectively installed on the upper part and the middle part of the frame 1 near the door.

[0022] The device uses cylinder 3 as the power source. When cylinder 3 extends, the vertical connecting plate 4 connected to its telescopic end moves accordingly. The vertical connecting plate 4 drives the upper door 6 to slide upward along the frame 1 through the upper door connecting plate 5. On the other hand, the vertical connecting plate 4 pulls the chain 12 connected to it. The chain 12 meshes with the sprocket 11. At this time, the sprocket 11 rotates counterclockwise. The other end of the chain 12 is connected to the lower door connecting plate 8. The rotation of the sprocket 11 drives the lower door connecting plate 8 to slide downward along the guide rail 7 through the chain 12. The lower door connecting plate 8 then drives the lower door 9, which is adapted to the upper door 6, to move downward. The upper door 6 and the lower door 9 move synchronously at the same speed, thereby realizing the synchronous opening of the two doors. When the door is fully opened, the door opening sensor limiter 13 senses the limit sensor plate 14 or related components and controls the cylinder 3 to stop extending. When cylinder 3 retracts, vertical connecting plate 4 moves in the opposite direction, causing upper door connecting plate 5 and linkage upper door 6 to slide in the opposite direction. At the same time, chain 12 is pulled to make sprocket 11 rotate clockwise. Chain 12 causes lower door connecting plate 8 to slide in the opposite direction along guide rail 7. Lower door connecting plate 8 causes linkage lower door 9 to move in the opposite direction to achieve synchronous closing. When the door is closed, the door closing sensor limiter senses the relevant components and controls cylinder 3 to stop retracting, thereby realizing the linkage control of upper and lower doors. The multiple sets of light-shielding plates installed in the upper door 6 and lower door 9, together with the safety system, prevent the device from cutting when the door is open, and cutting can only be performed after the door is completely closed, thus improving the safety performance of the device.

[0023] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chain-linked double-door device, comprising a frame (1), characterized in that: The inner side of the frame (1) near the door is fitted with left and right surround sheet metal (2). A cylinder (3) is mounted on the surround sheet metal (2). A vertical connecting plate (4) is mounted on the telescopic end of the cylinder (3). An upper door connecting plate (5) is mounted on the vertical connecting plate (4). A linkage upper door (6) is mounted on the upper door connecting plate (5) and is slidably connected to the frame (1). A guide rail (7) is mounted on the inner side of the frame (1) near the surround sheet metal (2). A sliding connection is mounted on the guide rail (7). A lower door connecting plate (8) is connected, and a lower door (9) adapted to the upper door (6) is installed on the lower door connecting plate (8). A fixed sheet metal part (10) is installed on the upper inner side of the frame (1). A sprocket (11) is rotatably installed on the inner side of the fixed sheet metal part (10). A chain (12) connected to the vertical connecting plate (4) and the lower door connecting plate (8) is meshed on the sprocket (11) so as to realize the simultaneous operation of the upper door (6) and the lower door (9).

2. The chain-linked double-door device according to claim 1, characterized in that: The frame (1) is equipped with a door opening sensor limiter (13) and a limit sensor plate (14) at the top and middle of the door.

3. The chain-linked double-door device according to claim 1, characterized in that: The frame (1) is equipped with door closing limiters distributed on the side of the limit sensor plate (14) near the door. The upper door connecting plate (5) and the lower door connecting plate (8) are connected to the guide rail (7) through sliders installed on their respective sides.

4. The chain-linked double-door device according to claim 1, characterized in that: When the cylinder (3) extends, the sprocket (11) rotates counterclockwise; when the cylinder (3) retracts, the sprocket (11) rotates clockwise.

5. The chain-linked double-door device according to claim 1, characterized in that: When the upper door (6) and the lower door (9) move synchronously, they move at the same speed.

6. The chain-linked double-door device according to claim 1, characterized in that: Multiple sets of light-shielding panels are provided in the linked upper door (6) and linked lower door (9).

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