Fine filter stick detection fluid director

Abstract

The utility model provides a thin filter stick detection fluid director, the fluid director is provided with a fluid director surface, a filter stick channel and a measuring channel which are communicated with one another, the fluid director surface is arranged at the top of the fluid director, and the fluid director surface is a conical surface of which the diameter is gradually reduced from top to bottom; the filter stick channel extends along the vertical direction and is used for communicating the bottom of the flow guide surface with the bottom of the flow guide device; the measuring channel is formed by upwards forming the bottom of the fluid director in the vertical direction, penetrates through the side face of the fluid director and is not smaller than the filter stick channel in height. The guide device has the beneficial effects that the thin filter sticks can stably enter the guide device and smoothly and vertically fall onto the bracket, so that the probability that the thin filter sticks are clamped in the measurement process is reduced, and the stability and the accuracy of a length detector and a circumference detector in the operation process are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of filter rod quality inspection equipment, and particularly relates to a fine filter rod detection flow guide device. Background Art

[0002] The existing SODIM filter rod tester uses a flow guide device to guide the filter rod from the pressure drop unit into the circumference / length unit. Theoretically, the flow guide device can achieve the guiding of filter rods of any size below 8 mm in diameter. However, during the production process, it is found that when using the filter rod tester supporting the KDF6 filter rod forming machine set to produce ultra-fine filter rods, the failure rate of the circumference / length unit is very high, and the most prominent one is the length measurement error failure.

[0003] After long-term observation and analysis, it is found that the main reason for this failure is that when the filter rod falls into the length unit measurement bracket, the filter rod does not fall vertically, and often tilts and falls to the edge of the bracket, resulting in a large deviation in length measurement and an error alarm. This situation will have a great impact on the stability of on-line sampling and is not conducive to the effective control of product quality during the production process.

[0004] According to the equipment integrity standard and production requirements, in order to ensure equipment efficiency and product quality, a flow guide device more suitable for measuring fine filter rods is needed to ensure that the fine filter rods can be stably introduced from the pressure drop measurement unit into the circumference / length measurement unit, reduce the failure rate of the SODIM tester, and ensure the stability of filter rod measurement. Content of the Utility Model

[0005] The utility model provides a fine filter rod detection flow guide device, on which there are a flow guide surface, a filter rod channel and a measurement channel that are interconnected. The flow guide surface is arranged at the top of the flow guide device and is a conical surface with a diameter gradually decreasing from top to bottom; the filter rod channel extends in the vertical direction and is used to connect the bottom of the flow guide surface and the bottom of the flow guide device; the measurement channel is formed by opening upward in the vertical direction from the bottom of the flow guide device and penetrates the side surface of the flow guide device.

[0006] Specifically, the apex angle of the conical surface is 87° - 96°.

[0007] Specifically, the flow guide device is made of aluminum or alloy.

[0008] Specifically, the cross-section of the flow guide device is circular.

[0009] Specifically, the diameter of the filter rod channel is 5.4 - 6.3 mm.

[0010] Specifically, the filter rod channel penetrates the side surface of the flow guide device, and its height is not less than the height of the filter rod channel.

[0011] Specifically, the surface of the flow guide surface is smooth.

[0012] Compared with the prior art, the beneficial effect of the present utility model is that it can enable the thin filter rod to stably enter the flow guide device, smoothly fall vertically onto the bracket, reduce the probability of the thin filter rod getting stuck during the measurement process, and greatly improve the operation stability and detection accuracy of the length detector and the circumference detector. Description of the Drawings

[0013] Figure 1 is a perspective view of the flow guide device of the present utility model.

[0014] Figure 2 is the front view of the flow guide device of the present utility model.

[0015] Figure 3 is the left view of the flow guide device of the present utility model.

[0016] Figure 4 is the top view of the flow guide device of the present utility model.

[0017] Figure 5 is when the thin filter rod passes through the filter rod channel Figure 4 a cross-sectional view taken along the A-A direction in the middle.

[0018] Element number description:

[0019] 1 Flow guide device

[0020] 11 Filter rod channel

[0021] 12 Measurement channel

[0022] 13 Flow guiding surface

[0023] 14 Bottom surface

[0024] 100 Thin filter rod

[0025] 200 Bracket Detailed implementation manners

[0026] The following further details the specific implementation manners of the present utility model in conjunction with the drawings. These implementation manners are only used to illustrate the present utility model and are not intended to limit the present utility model.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] As Figure 2 shown, it is the front view of the flow guide device of the present utility model. In the following description, Figure 2As a direction reference, it is defined that the upward direction along the drawing paper surface is the upper direction, and the downward direction along the drawing paper surface is the lower direction. The filter rod channel 11 extends along the up and down direction; it is defined that the left direction along the drawing paper surface is the left direction, and the right direction along the drawing paper surface is the right direction. The measurement channel 12 extends along the left and right direction.

[0029] The present utility model provides a fine filter rod detection flow guide device. The fine filter rod 100 with a diameter of 5.0 - 5.9 mm can smoothly enter and pass through the flow guide device 1 and vertically fall onto the bracket 200, making the results of length detection, circumference detection, and roundness detection more accurate.

[0030] As Figures 1 - 5 As shown in the figure, the flow guide device 1 is provided with a communicating flow guide surface 13, a filter rod channel 11, and a measurement channel 12. The flow guide surface 13 is arranged at the top of the flow guide device 1 and is a conical surface with a diameter gradually decreasing from top to bottom; the filter rod channel 11 extends along the vertical direction (i.e., the up and down direction) and is used to connect the bottom of the flow guide surface 13 and the bottom surface 14 of the flow guide device 1. The fine filter rod 100 enters the filter rod channel 11 under the guiding action of the flow guide surface 13 and vertically falls in the filter rod channel 1; the measurement channel 12 is formed by opening upward along the vertical direction from the bottom surface 14, which penetrates the side surface of the flow guide device 1, and its length direction is parallel to the left and right direction. Such a setting facilitates the use of a length measuring instrument to measure the length of the fine filter rod 100.

[0031] The flow guide device 1 is made of aluminum or an alloy, preferably made of high-strength and lightweight aluminum alloy. The cross-section of the flow guide device 1 is circular. Those skilled in the art can change the material of the flow guide device 1 according to actual needs, select materials such as titanium and copper, and can also change the cross-sectional shape of the flow guide device 1 according to needs, and select shapes such as rectangular.

[0032] Preferably, the surface of the flow guide surface 13 is smooth, and its apex angle α is 87° - 96°. The fine filter rod 100 can more smoothly and quickly enter the filter rod channel 11 along the flow guide surface 13, reducing the probability of the fine filter rod 100 getting stuck on the flow guide surface 13.

[0033] The diameter of the filter rod channel 11 is specifically 5.4 - 6.3 mm. This diameter value range is matched with the diameter of the fine filter rod 100, which can reduce the shaking of the fine filter rod 100 in the filter rod channel 11 and help the fine filter rod 100 maintain a vertical posture and fall in the filter rod channel 11. In a specific embodiment of the present utility model, the filter rod channel 11 is arranged at the central axis of the flow guide device 1, and the measurement channel 12 is arranged along the radial direction of the flow guide device 1.

[0034] Combined Figure 5 Describe an application embodiment of the present utility model:

[0035] The flow deflector 1 of the present utility model works in cooperation with a length measuring instrument, a driver, a bracket 200, and a circumference measuring instrument.

[0036] The length measuring instrument includes a first transmitter and a first receiver, which are respectively arranged at the left and right ends of the measuring channel 12.

[0037] The driver is connected to the bottom surface 14 and is used to drive the slim filter rod 100 to rotate.

[0038] The bracket 200 is arranged below the filter rod channel 11, and the preset distance d between it and the bottom surface 14 of the flow deflector 1 is less than the length of the slim filter rod 100, and the distance from the top surface of the slim filter rod 100 to the bottom surface 14 is less than the height of the measuring channel 12. That is, when the slim filter rod 100 stands vertically on the bracket 200, a part of the slim filter rod 100 is located outside the flow deflector 1, and the other part is simultaneously located in both the filter rod channel 11 and the measuring channel 12.

[0039] The circumference measuring instrument is arranged below the flow deflector 1 and includes a second transmitter and a second receiver, and the bracket 200 is located between the second transmitter and the second receiver. When the slim filter rod 100 stands vertically on the bracket 200, the slim filter rod 100 is located between the second transmitter and the second receiver.

[0040] Specifically, the first transmitter and the second transmitter can be one or more of an LED light source, a laser generator, and an infrared transmitter. The circumference measuring instrument can be a laser diameter gauge or an optoelectronic diameter gauge.

[0041] During operation, the slim filter rod 100 slides down along the flow guiding surface 13 and passes through the filter rod channel 11, and then stands vertically on the bracket 200. Then the length measuring instrument works. Its first transmitter emits a light beam into the measuring channel 12, and part of the light beam will be blocked by the slim filter rod 100, resulting in corresponding changes in the optical signal. The first receiver receives the optical signal and transmits the signal to the processor for data processing. By adding the preset distance d to the length of the slim filter rod 100 measured in the measuring channel 12, the length of the entire slim filter rod 100 can be obtained. Then while the driver assists the slim filter rod 100 to rotate one week, the circumference measuring instrument works. The second transmitter emits a light beam to the slim filter rod 100, and the second receiver obtains the diameter of the slim filter rod 100 by analyzing the imaging of the slim filter rod 100, and further obtains the circumference and roundness of the slim filter rod 100.

[0042] Preferably, the height of the measuring channel 12 is not less than the height of the filter rod channel 11. Such a setting can increase the detection range of the length of the slim filter rod 100.

[0043] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A fine filter rod detection flow guide device, characterized in that: The deflector is provided with a deflector surface, a filter rod channel and a measurement channel that are interconnected. The deflector surface is arranged at the top of the deflector and is a conical surface with a diameter gradually decreasing from top to bottom. The filter rod channel extends in the vertical direction and is used to connect the bottom of the deflector surface and the bottom surface of the deflector. The measurement channel is formed by opening upward in the vertical direction from the bottom surface of the deflector and penetrates the side surface of the deflector.

2. The deflector according to claim 1, wherein: The apex angle of the deflector surface is 87°-96°.

3. The flow deflector according to claim 1, wherein: The deflector is made of aluminum or an alloy.

4. The flow deflector according to claim 1, characterized in that: The cross-section of the deflector is circular.

5. The flow deflector according to claim 1, wherein: The diameter of the filter rod channel is 5.4-6.3 mm.

6. The flow deflector according to claim 1, characterized in that: The height of the measurement channel is not less than the height of the filter rod channel.

7. The flow deflector according to claim 1, characterized in that: The surface of the deflector surface is smooth.

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