Vertical screw metering scale opening and closing device

Abstract

The utility model discloses a vertical spiral metering scale opening and closing device, include: metering pipe, drive assembly and open and close subassembly, drive assembly includes: fixed establishment, drive cylinder and drive rod, fixed establishment is fixed on metering pipe, drive cylinder is located on fixed establishment, drive cylinder's output is connected drive rod's first end, drive rod is rotatably connected with fixed establishment, drive rod's second end has two connecting parts, open and close subassembly includes: connecting rod, open and close rod and seal cover, drive rod's two connecting parts rotatably connected with connecting rod's first end all, connecting rod's second end is hinged with open and close rod, open and close rod's both ends rotatably connected with metering pipe, the seal cover is fixed on open and close rod, and two seal covers are used for sealing the discharge port of metering pipe, the utility model discloses can be sealed to the discharge port of metering pipe, avoids appearing the condition of material leakage.

Description

Technical Field

[0001] This utility model relates to the field of metering equipment technology, and in particular to an opening and closing device for a vertical screw weighing scale. Background Technology

[0002] The opening and closing device is an actuator that controls the precise feeding of materials, typically a pneumatic or electric gate valve. It is usually installed at the discharge port and opens and closes rapidly upon receiving commands from the control system, achieving immediate material cutting and feeding. This device features rapid response, reliable sealing, and high wear resistance, and is widely used in continuous metering and feeding systems for powder and granular materials in industries such as cement and chemicals. Traditional opening and closing devices often have poor sealing between the device and the discharge port, frequently resulting in material leakage after closure. Summary of the Invention

[0003] According to an embodiment of the present invention, a vertical screw weighing scale opening and closing device is provided, comprising: a weighing tube, a driving assembly, and an opening and closing assembly; The drive assembly includes: a fixing mechanism, a drive cylinder, and a drive rod; The fixing mechanism is fixed on the metering tube, the driving cylinder is mounted on the fixing mechanism, the output end of the driving cylinder is connected to the first end of the driving rod, the driving rod is rotatably connected to the fixing mechanism, and the second end of the driving rod has two connecting parts. The opening and closing assembly includes: a connecting rod, an opening and closing rod, and a sealing mask; The two connecting parts of the drive rod are rotatably connected to the first end of the connecting rod, the second end of the connecting rod is hinged to the opening and closing rod, both ends of the opening and closing rod are rotatably connected to the metering tube, the sealing mask is fixed on the opening and closing rod, and the two sealing masks are used to seal the outlet of the metering tube.

[0004] Furthermore, the fixing mechanism includes: a fixing ring, a fixing plate, and a rotating bearing; The fixing ring is sleeved on the metering tube and connected to the metering tube. One end of the fixing plate is connected to the fixing ring. The driving cylinder is fixed on the fixing plate. One side of the rotating bearing is rotatably connected to the fixing plate, and the other end is rotatably connected to the driving rod.

[0005] Furthermore, the first end of the drive rod has a strip-shaped hole, the output end of the drive cylinder is rotatably connected to the strip-shaped hole, the second end of the drive rod is U-shaped, the two connecting parts are located at the two ends of the U-shape respectively, and the two connecting parts are located on both sides of the metering tube respectively.

[0006] Furthermore, the opening and closing assembly also includes: a hinge; Two hinges are arranged opposite each other on the metering tube, and the two ends of the opening and closing rod are respectively rotatably connected to the two hinges.

[0007] Furthermore, the sealing mask includes: a sealing base plate and sealing side plates; The outlet of the metering tube is arc-shaped, and the sealing base plate is arc-shaped and corresponding to the outlet. Both sides of the sealing base plate are provided with sealing side plates, which are attached to the outer wall of the outlet of the metering tube.

[0008] According to an embodiment of the present invention, a vertical spiral weighing scale opening and closing device is provided. The fixing mechanism of this application fixes the driving cylinder on the weighing tube. During the process of the driving cylinder pushing the driving rod, the driving rod rotates around the rotational connection between the driving rod and the fixing mechanism, causing the connecting rod to pull the opening and closing rod to move, so that the two sealing masks close or open the outlet of the weighing tube, thereby sealing the outlet of the weighing tube and preventing leakage.

[0009] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0010] Figure 1 This is a structural diagram of an opening and closing device for a vertical screw weighing scale according to an embodiment of the present invention; Figure 2 This is a front view of an opening and closing device for a vertical screw weighing scale according to an embodiment of the present invention; Figure 3 This is a side view of an opening and closing device for a vertical screw weighing scale according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of an opening and closing device for a vertical screw weighing scale according to an embodiment of the present invention.

[0011] The attached diagram is labeled as follows: 1 is the metering tube, 2 is the fixing mechanism, 21 is the fixing ring, 22 is the fixing plate, 23 is the rotating bearing, 3 is the driving cylinder, 4 is the driving rod, 5 is the connecting rod, 6 is the opening and closing rod, 7 is the sealing mask, and 8 is the hinge. Detailed Implementation

[0012] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0013] First, combine Figures 1-4 This invention describes an opening and closing device for a vertical screw weighing scale according to an embodiment of the present invention. The screw conveying device is disposed in the weighing tube and is used for opening and closing the weighing scale.

[0014] like Figures 1-4 As shown, an embodiment of the present invention provides a vertical screw weighing scale opening and closing device, comprising: a weighing tube 1, a drive assembly, and an opening and closing assembly. The drive assembly includes: a fixing mechanism 2, a drive cylinder 3, and a drive rod 4; The fixing mechanism 2 is fixed on the metering tube 1, the driving cylinder 3 is mounted on the fixing mechanism 2, the output end of the driving cylinder 3 is connected to the first end of the driving rod 4, the driving rod 4 is rotatably connected to the fixing mechanism 2, and the second end of the driving rod 4 has two connecting parts. The opening and closing assembly includes: a connecting rod 5, an opening and closing rod 6, and a sealing mask 7; The two connecting parts of the drive rod 4 are rotatably connected to the first end of the connecting rod 5. The second end of the connecting rod 5 is hinged to the opening and closing rod 6. Both ends of the opening and closing rod 6 are rotatably connected to the metering tube 1. The sealing mask 7 is fixed on the opening and closing rod 6. The two sealing masks 7 are used to seal the outlet of the metering tube 1.

[0015] The fixing mechanism 2 of this application fixes the driving cylinder 3 on the metering tube 1. During the process of the driving cylinder 3 pushing the driving rod 4, the driving rod 4 rotates around the rotational connection between the driving rod 4 and the fixing mechanism 2, causing the connecting rod 5 to pull the opening and closing rod 6 to move, so that the two sealing masks 7 close or open the outlet of the metering tube 1, thereby sealing the outlet of the metering tube 1 and preventing leakage.

[0016] like Figures 1-3 As shown, the fixing mechanism 2 includes: a fixing ring 21, a fixing plate 22, and a rotating bearing 23; The fixing ring 21 is sleeved on the metering tube 1 and connected to the metering tube 1. One end of the fixing plate 22 is connected to the fixing ring 21. The driving cylinder 3 is fixed on the fixing plate 22. One side of the rotating bearing 23 is rotatably connected to the fixing plate 22, and the other end is rotatably connected to the driving rod 4.

[0017] The first end of the drive rod 4 has a strip-shaped hole, the output end of the drive cylinder 3 is rotatably connected to the strip-shaped hole, the second end of the drive rod 4 is U-shaped, the two connecting parts are located at the two ends of the U-shape respectively, and the two connecting parts are located on both sides of the metering tube 1 respectively.

[0018] In this embodiment, the fixing plate 22 is fixed to the metering tube 1 by the fixing ring 21, and the drive rod 4 is rotatably connected to the fixing plate 22 by the rotating bearing 23. By opening a strip hole at the first end of the drive rod 4, the drive cylinder 3 can smoothly drive the drive rod 4 to rotate, ensuring that the drive rod 4 can simultaneously pull the connecting rod 5 to move up and down.

[0019] like Figures 1-4 As shown, the opening and closing assembly further includes: a hinge 8; Two hinges 8 are arranged opposite each other on the metering tube 1, and the two ends of the opening and closing rod 6 are respectively rotatably connected to the two hinges 8.

[0020] The sealing mask 7 includes: a sealing base plate and sealing side plates; The outlet of the metering tube 1 is arc-shaped, and the sealing base plate is arc-shaped and corresponding to the outlet. Both sides of the sealing base plate are provided with sealing side plates, which are attached to the outer wall of the outlet of the metering tube 1.

[0021] In this embodiment, by setting the outlet of the metering tube 1 to be arc-shaped, the two sealing base plates are made to be in a gentle shape with the outlet. When the outlet is closed, the two sealing base plates are made to completely seal the outlet. The sealing side plates are tightly attached to the outer wall of the outlet to avoid leakage.

[0022] Above, refer to Figures 1-4 This invention describes an opening and closing device for a vertical spiral weighing scale according to an embodiment of the present invention. The fixing mechanism 2 of this application fixes the driving cylinder 3 on the weighing tube 1. During the process of the driving cylinder 3 pushing the driving rod 4, the driving rod 4 rotates around the rotational connection between the driving rod 4 and the fixing mechanism 2, causing the connecting rod 5 to pull the opening and closing rod 6 to move, so that the two sealing masks 7 close or open the outlet of the weighing tube 1, thereby sealing the outlet of the weighing tube 1 and preventing leakage.

[0023] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover a 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 a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0024] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A vertical screw weighing scale opening and closing device, characterized in that, include: Metering tube, drive assembly, and opening / closing assembly; The drive assembly includes: a fixing mechanism, a drive cylinder, and a drive rod; The fixing mechanism is fixed on the metering tube, the driving cylinder is mounted on the fixing mechanism, the output end of the driving cylinder is connected to the first end of the driving rod, the driving rod is rotatably connected to the fixing mechanism, and the second end of the driving rod has two connecting parts. The opening and closing assembly includes: a connecting rod, an opening and closing rod, and a sealing mask; The two connecting parts of the drive rod are rotatably connected to the first end of the connecting rod, the second end of the connecting rod is hinged to the opening and closing rod, both ends of the opening and closing rod are rotatably connected to the metering tube, the sealing mask is fixed on the opening and closing rod, and the two sealing masks are used to seal the outlet of the metering tube.

2. The opening and closing device for a vertical screw weighing scale as described in claim 1, characterized in that, The fixing mechanism includes: a fixing ring, a fixing plate, and a rotating bearing; The fixing ring is sleeved on the metering tube and connected to the metering tube. One end of the fixing plate is connected to the fixing ring. The driving cylinder is fixed on the fixing plate. One side of the rotating bearing is rotatably connected to the fixing plate, and the other end is rotatably connected to the driving rod.

3. The opening and closing device for a vertical screw weighing scale as described in claim 1, characterized in that, The first end of the drive rod has a strip-shaped hole, and the output end of the drive cylinder is rotatably connected to the strip-shaped hole. The second end of the drive rod is U-shaped, and the two connecting parts are located at the two ends of the U-shape and on both sides of the metering tube.

4. The opening and closing device for a vertical screw weighing scale as described in claim 1, characterized in that, The opening and closing assembly further includes: a hinge; Two hinges are arranged opposite each other on the metering tube, and the two ends of the opening and closing rod are respectively rotatably connected to the two hinges.

5. The opening and closing device for a vertical screw weighing scale as described in claim 1, characterized in that, The sealing mask includes: a sealing base plate and sealing side plates; The outlet of the metering tube is arc-shaped, and the sealing base plate is arc-shaped and corresponding to the outlet. Both sides of the sealing base plate are provided with sealing side plates, which are attached to the outer wall of the outlet of the metering tube.

Images