Moisture retaining mechanism of rotary filling value tester

Abstract

The utility model provides a moisture retention mechanism of a rotary filling value tester. The moisture retention mechanism comprises a slewing mechanism, a measuring cylinder, a top plate and an arc-shaped water sealing plate, a plurality of measuring cylinders are mounted at the peripheral driving end of the slewing mechanism and are used for driving the measuring cylinders to do circular motion; the top plate is fixed in position and is positioned above the slewing mechanism and the measuring cylinder; a feeding station, a measuring station and a discharging station are arranged along the movement track of the measuring cylinder, the arc-shaped water sealing plate is arranged in the area, between the feeding station and the measuring station, of the bottom end of the top plate, and the bottom end of the arc-shaped water sealing plate is in sliding sealing fit with the top end of the measuring cylinder. The moisture keeping mechanism of the rotary filling value tester has the advantages of ensuring that the space of the measuring cylinder is closed in the waiting process and preventing moisture loss.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco industry filling value measurement, and specifically, to a moisture retention mechanism for a rotary filling value measuring instrument. Background Art

[0002] A multi-functional cut tobacco filling measuring instrument is a special detection instrument for the filling capacity of cut tobacco including leaf tobacco, expanded leaf tobacco, sheet tobacco, stem tobacco, expanded stem tobacco, finished blended cut tobacco, etc. According to the corresponding measurement procedures and measurement standards, during the filling value measurement process, a stable pressure needs to be continuously applied to the cut tobacco in the measuring cylinder until it reaches the set value and then maintained for a certain period of time. After the state is fully stable, relevant readings are taken.

[0003] The existing filling value measuring instrument has only one working station. During the measurement process, the pressing component always presses above the cut tobacco to be measured, etc., which not only realizes the pressing but also closes the internal space of the measuring cylinder, so that the humidity of the cut tobacco is always maintained in a stable state.

[0004] When multi-station transformation is required, generally multiple measuring cylinders are designed and passed through the measuring stations one by one. However, according to the standard design, the time from pressing down, stabilizing to reading data at the measuring station is at least 5 - 10 minutes. Then, the detection interval between adjacent two detection stations is at least 5 - 10 minutes. When designing multiple stations, the waiting time for the subsequent measuring cylinders will be longer. And the measuring cylinder is open during the transfer process, which will cause the moisture of the cut tobacco waiting to be measured to volatilize during the waiting process, affecting the accuracy of the detection results.

[0005] In order to solve the above existing problems, people have been seeking an ideal technical solution. Content of the Utility Model

[0006] The purpose of the utility model is to aim at the deficiencies of the prior art, and thus provide a moisture retention mechanism for a rotary filling value measuring instrument that can ensure the closure of the space of the measuring cylinder during the waiting process and prevent moisture loss.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is: a moisture retention mechanism for a rotary filling value measuring instrument, including a rotary mechanism, a measuring cylinder, a top plate and an arc-shaped water sealing plate;

[0008] A plurality of the measuring cylinders are installed at the peripheral driving end of the rotary mechanism for driving each measuring cylinder to perform circular motion;

[0009] The position of the top plate is fixed and is located above the rotary mechanism and the measuring cylinder;

[0010] There are a feeding station, a measuring station and a discharging station arranged along the movement track of the measuring cylinder. An arc-shaped water sealing plate is arranged in the area between the feeding station and the measuring station at the bottom end of the top plate. The bottom end of the arc-shaped water sealing plate is in sliding and sealing fit with the top end of the measuring cylinder.

[0011] Based on the above, the arc-shaped water sealing plate comprises a double-layer structure composed of a base and a sealing plate. The base is fixed to the bottom end of the top plate, and the sealing plate is fixed to the bottom end of the base.

[0012] Based on the above, the sealing plate is made of a flexible sealing material.

[0013] Based on the above, the material of the sealing plate is polytetrafluoroethylene or rubber.

[0014] Based on the above, inclined guiding surfaces are arranged at both ends of the arc-shaped water sealing plate.

[0015] Based on the above, the measuring cylinder is a cylindrical structure with both the top end and the bottom end open.

[0016] Based on the above, it further includes a bottom plate. The upper surface of the bottom plate is a smooth plane, and the bottom end of the measuring cylinder is in sliding and sealing fit with the upper surface of the bottom plate.

[0017] Based on the above, the slewing mechanism includes a driving motor, a slewing cylinder and a slewing driving plate. The measuring cylinder is installed in a U-shaped groove arranged on the outer periphery of the slewing driving plate.

[0018] The utility model has substantial features and progress compared with the prior art. Specifically, the utility model transforms the traditional single-station filling value measuring instrument into a multi-station filling value measuring instrument with rotary motion. By controlling the switching of the measuring cylinder between multiple different stations on the circumferential track, the cyclic rotary automatic measurement of a batch of samples to be measured is realized. An arc-shaped water sealing plate is arranged between the feeding station and the measuring station, so that the top opening of the waiting measuring cylinder is closed by the arc-shaped water sealing plate, thereby preventing the loss of moisture of the tobacco shreds and other materials to be measured inside, and improving the accuracy of subsequent measurement.

[0019] Furthermore, in order to enable the measuring cylinder to smoothly transition when entering the area where the arc-shaped water sealing plate is located, inclined guiding surfaces are arranged.

[0020] The sealing plate is designed to be made of flexible polytetrafluoroethylene or rubber material, so as to improve the sealing performance of the sealing area. Description of the Drawings

[0021] Figure 1 It is a schematic structural view of the moisture retention mechanism of the rotary filling value measuring instrument in the utility model.

[0022] Figure 2 It is a top view of the moisture retention mechanism of the rotary filling value measuring instrument in the utility model with the top plate removed.

[0023] Figure 3 This is a perspective view of the moisture retention mechanism of the rotary filling value measuring instrument in the present utility model with the top plate removed.

[0024] Figure 4 This is a first perspective side view of the moisture retention mechanism of the rotary filling value measuring instrument in the present utility model.

[0025] Figure 5 This is a second perspective side view of the moisture retention mechanism of the rotary filling value measuring instrument in the present utility model.

[0026] Figure 6 This is a third perspective side view of the moisture retention mechanism of the rotary filling value measuring instrument in the present utility model.

[0027] In the figure: 1. Rotary mechanism; 2. Measuring cylinder; 3. Top plate; 4. Arc-shaped water sealing plate; 5. Feeding station; 6. Measuring station; 7. Discharging station; 8. Bottom plate; 11. Driving motor; 12. Rotary cylinder; 13. Driving plate; 41. Base; 42. Sealing plate; 43. Guide surface. Specific embodiments

[0028] The technical solutions of the present utility model will be further described in detail below through specific embodiments.

[0029] As Figures 1-6 shown, a moisture retention mechanism of a rotary filling value measuring instrument includes a rotary mechanism 1, a measuring cylinder 2, a top plate 3, and an arc-shaped water sealing plate 4.

[0030] A plurality of the measuring cylinders 2 are installed at the peripheral driving ends of the rotary mechanism 1 for driving each measuring cylinder 2 to perform circular motion. A feeding station 5, a measuring station 6, and a discharging station 7 are arranged along the movement track of the measuring cylinder 2. When the measuring cylinder 2 passes through the feeding station 5, the material to be measured is filled. When passing through the measuring station 6, the measuring mechanism is used for measurement. When passing through the discharging station 7, the material to be measured is discharged, and so on in a cyclic progression to realize automatic cyclic filling value measurement.

[0031] The position of the top plate 3 is fixed and is located above the rotary mechanism 1 and the measuring cylinder 2. The arc-shaped water sealing plate 4 is arranged in the area between the feeding station 5 and the measuring station 6 at the bottom end of the top plate 3, and the bottom end of the arc-shaped water sealing plate 4 is in sliding sealing cooperation with the top end of the measuring cylinder 2.

[0032] This section of the area is the position where the measuring cylinder 2 waiting to enter the measuring station is located. At this time, the measuring cylinder 2 has already contained the material to be measured, and the waiting time is relatively long, and the longest may be 20 - 30 minutes. Therefore, it is necessary to ensure the sealing of the measuring cylinder to prevent moisture loss.

[0033] Description of the working principle:

[0034] When the device starts to run, the measuring cylinder starts to pass through the feeding station 5 in sequence according to the set rhythm. The external feeding mechanism fills a fixed amount of the material to be measured into the passing measuring cylinder 2. When the first measuring cylinder moves to the measuring station 6, it stops for 5 - 10 minutes to execute the entire process of measuring the filling value. During this process, the subsequent 2 - 3 measuring cylinders stay in the area between the feeding station 5 and the measuring station 6, and the top opening is closed by the arc-shaped water sealing plate 4 so that the moisture of the material to be measured inside does not escape.

[0035] In a preferred embodiment, as Figures 4-6 shown, in order to facilitate the replacement, maintenance and installation of the arc-shaped water sealing plate 4, the structure of the arc-shaped water sealing plate 4 is designed as a double-layer structure including a base 41 and a sealing plate 42. The base 41 is fixed to the bottom end of the top plate 3, and the sealing plate 42 is fixed to the bottom end of the base 41. The sealing plate 42 is made of a flexible sealing material such as polytetrafluoroethylene or rubber. Among them, polytetrafluoroethylene also has a certain lubricity, which is more conducive to the movement of the measuring cylinder 2. Figures 4-6 shows the schematic structural diagram of the entire arc-shaped water sealing plate 4 from the perspective of the feeding port side to the perspective of the discharging port side.

[0036] In a preferred embodiment, in order to avoid the movement interference between the arc-shaped water sealing plate 4 and the measuring cylinder 2, inclined guiding surfaces 43 are provided at both ends of the arc-shaped water sealing plate 4.

[0037] In this embodiment, the measuring cylinder 2 is a cylindrical structure with both the top and bottom open. Correspondingly, it also includes a bottom plate 8. The upper surface of the bottom plate 8 is a smooth plane, and the bottom end of the measuring cylinder 2 is slidably and sealingly matched with the upper surface of the bottom plate 8.

[0038] The rotary mechanism 1 includes a driving motor 11, a rotary cylinder 12 and a rotary driving plate 13. The driving motor 11 drives the rotary cylinder 12 to rotate, and the rotary cylinder 12 drives the driving plate 13 to rotate. The measuring cylinder 2 is installed in the U-shaped groove provided on the outer periphery of the rotary driving plate 13. In this embodiment, the measuring cylinder 2 is pressed tightly on the upper surface of the bottom plate 8 through a spinning mechanism such as bolts or elastic pins.

[0039] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: still modifications can be made to the specific implementation manners of the present invention or equivalent replacements can be made to some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A moisture retention mechanism for a rotary filling value measuring instrument, characterized in that: It includes a rotary mechanism, a measuring cylinder, a top plate and an arc-shaped water sealing plate; A plurality of measuring cylinders are installed on the driving ends around the rotating mechanism to drive each measuring cylinder to make circular motion; The top plate is fixed and located above the rotary mechanism and the measuring cylinder; A feeding station, a measuring station and a discharging station are arranged along the movement trajectory of the measuring cylinder. The arc-shaped water sealing plate is arranged in the area between the feeding station and the measuring station at the bottom end of the top plate. The bottom end of the arc-shaped water sealing plate is slidably sealed with the top end of the measuring cylinder.

2. The moisture retention mechanism of the rotary filling value measuring instrument according to claim 1, characterized in that: The arc-shaped water sealing plate comprises a double-layer structure consisting of a base and a sealing plate. The base is fixed to the bottom end of the top plate, and the sealing plate is fixed to the bottom end of the base.

3. The moisture retention mechanism of the rotary filling value measuring instrument according to claim 2, characterized in that: The sealing plate is made of flexible sealing material.

4. The moisture retention mechanism of the rotary filling value measuring instrument according to claim 3, characterized in that: The sealing plate is made of polytetrafluoroethylene or rubber.

5. The moisture retention mechanism of the rotary filling value measuring instrument according to any one of claims 2 to 4, characterized in that: Both ends of the arc-shaped water sealing plate are provided with inclined guide surfaces.

6. The moisture retention mechanism of the rotary filling value measuring instrument according to any one of claims 2 to 4, characterized in that: The measuring tube is a tubular structure with both the top and bottom ends open.

7. The moisture retention mechanism of the rotary filling value measuring instrument according to claim 6, characterized in that: It also includes a bottom plate, the upper surface of which is a smooth plane, and the bottom end of the measuring cylinder is slidably and sealingly matched with the upper surface of the bottom plate.

8. The moisture retention mechanism of the rotary filling value measuring instrument according to claim 6, characterized in that: The rotary mechanism comprises a driving motor, a rotary cylinder and a rotary driving plate, and the measuring cylinder is installed in a U-shaped groove arranged on the outer periphery of the rotary driving plate.

Images