Cigar blank suction resistance detection head and detection device

Abstract

The utility model discloses a cigar blank suction resistance detection head, which comprises a fixed seat and an accommodating cavity arranged on the fixed seat, a negative pressure pipe is arranged on the accommodating cavity, and an elastic sealing sleeve is arranged in the accommodating cavity. The utility model further discloses a cigar blank suction resistance detection device which comprises the detection head, an air pump and a vacuum generator communicated with the negative pressure pipe, and the air pump is respectively communicated with the vacuum generator and the inflatable sealing ring. And the micro differential pressure sensor is connected between the detection head and the vacuum generator. According to the suction resistance detection head for the cigar blank, the elastic sealing sleeve and the inflatable sealing ring are arranged to seal the cigar blank, so that the elastic sealing sleeve is more attached to a cigar blank sample, leakage is avoided during suction resistance detection, and the detection result is more reliable; the cigar blank suction resistance detection device adopts a plurality of groups of filtering air paths, so that air path blockage is avoided, the accuracy of a detection result is ensured, and the effectiveness of the detection result is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cigar smoke resistance detection, in particular to a cigar smoke embryo resistance detection head and a detection device. Background Art

[0002] The wrapping depth of cigarettes in the draw resistance measuring instrument is 9mm. The size of cigarettes is small and the variation range is not large. However, the length range of cigars popular in the international market is about 80-200mm. Both the size and the variation range are very different from cigarettes. The draw resistance is the key factor causing the unstable quality of cigar production. As a detection index for quality control in the cigar production process, the range and volatility of the draw resistance can reflect the applicability of the designed formula for batch production, the quality control of cigar rolling materials, and the skill level of different rollers. The existing cigar draw resistance test is modified according to the draw resistance measuring instrument used for cigarettes. The modified draw resistance measuring instrument is not suitable for cigars. In addition, the domestic draw resistance instruments have different settings for the wrapping depth of cigar embryos, and there is no unified requirement. Therefore, a cigar embryo draw resistance detection head is proposed to solve the above-mentioned problems. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a cigar embryo draw resistance detection head, comprising a fixing seat 1, a receiving cavity 2 for receiving the embryo is opened on the fixing seat 1, a negative pressure tube 31 is arranged on the receiving cavity 2, an elastic sealing sleeve 4 is arranged in the receiving cavity 2, the inner diameter of the elastic sealing sleeve 4 is adapted to the outer diameter of the embryo, and the outer side of the elastic sealing sleeve 4 is in contact with the inner wall of the receiving cavity 2.

[0004] Furthermore, the elastic sealing sleeve 4 is made of silicone material.

[0005] Furthermore, an inflatable sealing ring 5 located outside the elastic sealing sleeve 4 is provided in the accommodating cavity 2 , and the inner diameter of the inflatable sealing ring 5 is matched with the outer diameter of the elastic sealing sleeve 4 .

[0006] Furthermore, a communicating positive pressure pipe 51 is provided on the inflatable sealing ring 5 .

[0007] In addition, the utility model also provides a cigar embryo draw resistance detection device, including the cigar embryo draw resistance detection head described above, and also including an air pump 6 and a vacuum generator 3, wherein the vacuum generator 3 is connected to the negative pressure tube 31, and the air pump 6 is connected to the inflatable sealing ring 5; and also includes a micro-differential pressure sensor connected between the detection head and the vacuum generator.

[0008] Furthermore, a plurality of groups of filtering air paths are arranged in parallel between the negative pressure tube 31 and the vacuum generator.

[0009] The cigar embryo draw resistance detection head of the utility model seals the cigar embryo by arranging an elastic sealing sleeve, and further adopts an inflatable sealing ring to squeeze the elastic sealing sleeve so that the elastic sealing sleeve and the cigar embryo sample are more closely fitted, and at the same time, the inflatable sealing ring can also form a good sealing surface with the inner wall of the accommodating cavity, ensuring that no leakage occurs during the draw resistance detection, thereby making the detection result more reliable; the cigar embryo draw resistance detection device of the utility model adopts multiple groups of filtering air paths, avoids air path blockage, ensures the accuracy of the detection result, and further increases the validity of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the cigar embryo draw resistance detection head of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of another cigar embryo draw resistance detection head of the utility model;

[0012] Figure 3 It is a schematic diagram of the structure of another elastic sealing sleeve of a cigar embryo suction resistance detection head of the utility model;

[0013] Figure 4 The utility model is a schematic diagram of the structure of the cigar embryo draw resistance detection device.

[0014] Among them, 1. fixed seat; 2. accommodating chamber; 3. vacuum generator; 31. negative pressure tube; 4. elastic sealing sleeve; 41. sealing ring; 5. inflatable sealing ring; 51. positive pressure tube; 6. air pump. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0016] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the embodiment, Figure 1 As shown, a cigar embryo draw resistance detection head comprises a fixing seat 1, wherein a receiving chamber 2 for receiving the embryo is provided in the fixing seat 1, the receiving chamber 2 is connected to a vacuum generator 3 via a negative pressure tube 31, and an elastic sealing sleeve 4 is provided in the receiving chamber 2.

[0019] The elastic sealing sleeve 4 is an elastic sleeve with an outer wall of a certain length and open at both ends, which is adapted to the inner wall of the accommodating cavity. Its outer side is attached to the inner wall of the accommodating cavity 2, and its inner cavity shape is adapted to the shape of the end of the cigarette embryo. The elastic sealing sleeve 4 is made of silicone material.

[0020] An inflatable sealing ring 5 is also sleeved on the outer surface of the elastic sealing sleeve 4, and the inner diameter of the inflatable sealing ring 5 is adapted to the outer diameter of the elastic sealing sleeve 4. An annular groove is also provided on the inner wall of the fixing seat 1, and the inflatable sealing ring 5 is arranged in the annular groove for installing the inflatable sealing ring 5, and the outer diameter of the inflatable sealing ring 5 is adapted to the inner diameter of the accommodating chamber 2. A positive pressure pipe 51 is connected to the inflatable sealing ring 5, and the other end of the positive pressure pipe 51 is connected to the air pump 6.

[0021] Of course, the elastic sealing sleeve 4 may also have other shapes, such as Figure 2 , 3 As shown, the elastic sealing sleeve 4 is composed of an elastic membrane with a sealing ring 41 at the center. The elastic membrane is tightly pressed on the surface of the fixing seat. The sealing ring 41 can be a soft rubber O-ring with elasticity. When the cigar sample is inserted into the sealing ring 41, since the diameter of the end of the cigar is gradually changed, there must be a position that is adapted to the size of the sealing ring to seal the end of the cigar sample in the accommodating cavity.

[0022] like Figure 4As shown, the cigar embryo draw resistance detection device of this embodiment includes a cigar embryo draw resistance detection head, an air pump 6, a vacuum generator 3, and also includes a mass flow controller, a micro differential pressure sensor, and multiple groups of filter air paths connected in parallel between the micro differential pressure sensor and the cigar embryo draw resistance detection head negative pressure tube 31, each group of filter air paths includes a one-way valve, a primary filter, a secondary filter, an on-off valve, and a pressure differential gauge connected to both ends of the secondary filter in sequence from the detection head to the vacuum generator. The air pump is connected to the vacuum generator through the on-off valve. When the compressed air with a certain pressure from the air pump passes through the small hole inside the vacuum generator, the flow rate is accelerated, and a low pressure area is generated around the fast airflow to form a negative pressure, thereby providing negative pressure for the cigar embryo draw resistance detection head. A precision pressure regulating valve and an on-off valve are connected in sequence between the air pump 6 and the positive pressure tube 51, and an on-off valve is also connected to the air path behind the positive pressure tube 51 to facilitate exhaust after the work is completed. The vacuum generator is provided with a muffler. The vacuum generator model used in this embodiment is: SMC ZH10DLA-06-06-08, the mass flow controller is AZBIL Japan Yamatake MQV0005BSSN01010C, and the micro differential pressure sensor model arranged between the mass flow controller and the filtering device is Yasco DX3F0142ST25IW, which is mainly used for suction resistance measurement.

[0023] During the test, light the cigar and insert it into the test head, turn on the air pump 6, the vacuum generator works to generate vacuum, the air path between the air pump and the positive pressure tube is opened, and the compressed air is filled into the air-filled sealing ring 5 to fully wrap the cigar sample. Open a set of filter air paths and close other filter air paths for suction resistance detection. The negative pressure value is read by the micro-differential pressure sensor. The negative pressure value is the suction resistance of the cigar at the burning point. After detecting a burning point, wait for the cigar to burn for a period of time, open another set of filter air paths, close other filter air paths, and detect the suction resistance of the next burning point again to obtain the suction resistance of different parts of the cigar. Using a new filter air path at each test point can ensure that the path of the air path is smooth and consistent, avoid errors, and save detection time. Silica gel is super soft silica gel, which can be deformed by external force. At the same time, silica gel has a high density and is a good sealing material. It can provide good deformation to fully wrap the sample cigar and achieve good air tightness to truly reflect the suction resistance of the cigar sample.

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

Claims

1. A cigar tobacco embryo draw resistance detection head, characterized in that: The invention comprises a fixing seat (1), wherein a receiving cavity (2) for receiving a cigarette embryo is provided on the fixing seat (1), a negative pressure tube (31) is provided on the receiving cavity (2), an elastic sealing sleeve (4) is provided in the receiving cavity (2), the inner diameter of the elastic sealing sleeve (4) is matched with the outer diameter of the cigarette embryo, and the outer side of the elastic sealing sleeve (4) is in contact with the inner wall of the receiving cavity (2).

2. The cigar embryo draw resistance detection head according to claim 1, characterized in that: The elastic sealing sleeve (4) is made of silicone material.

3. The cigar embryo draw resistance detection head according to claim 1, characterized in that: An inflatable sealing ring (5) located outside the elastic sealing sleeve (4) is arranged in the accommodating cavity (2), and the inner diameter of the inflatable sealing ring (5) is matched with the outer diameter of the elastic sealing sleeve (4).

4. The cigar embryo draw resistance detection head according to claim 3, characterized in that: The inflation seal ring (5) is provided with a communicating positive pressure pipe (51).

5. A cigar embryo draw resistance detection device, characterized in that: It comprises the cigar embryo draw resistance detection head as claimed in claim 3 or 4, and also comprises an air pump (6) and a vacuum generator (3), wherein the vacuum generator (3) is connected to the negative pressure tube (31), and the air pump (6) is connected to the inflation seal ring (5); and also comprises a micro differential pressure sensor connected between the detection head and the vacuum generator.

6. The cigar embryo draw resistance detection device according to claim 5, characterized in that: A plurality of groups of filtering air paths are also arranged in parallel between the negative pressure tube (31) and the vacuum generator.

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