Multi-channel switching device for measuring draw resistance of cigarette and filter stick

Abstract

The utility model discloses a multi-channel switching device for measuring draw resistance of cigarettes and filter sticks. The multi-channel switching device comprises a draw resistance testing head, an assembly mounting seat, a circular cylinder, a rotary clamping cylinder, a shaft bracket and a V-shaped sealing ring a, according to the invention, a plurality of draw resistance testing heads with different sizes are adopted to carry out draw resistance testing on cigarettes and filter sticks with different thicknesses; a plurality of draw resistance testing heads are mounted on the assembly mounting seat, and the required draw resistance testing head is switched to a draw resistance station through the circular air cylinder, so that the draw resistance testing heads with different sizes are quickly switched to perform draw resistance testing on cigarettes and filter sticks with different thicknesses, manual mounting is reduced, and time is saved; the rotary clamping air cylinder is adopted, two actions of one air cylinder can be achieved, and control logic is reduced; the single-acting air cylinder is adopted, the piston rod of the single-acting air cylinder is charged with negative pressure, and when the draw resistance testing head is switched, the front end of the single-acting air cylinder is separated from the air hole and is not attached to the moving assembly mounting seat, so that abrasion is avoided, and the service life of the instrument is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette physical detection, in particular to a multi-channel switching device for measuring the draw resistance of cigarettes and filter rods. Background Art

[0002] In the field of physical inspection of cigarettes / filter rods, single-function test machines and multi-function test benches are mainly used to measure the physical indicators of cigarettes / filter rods, such as weight, circumference, length, resistance to draw, hardness and other indicators. Among them, the weight, circumference, length and hardness measurement functions are compatible with coarse, medium and fine samples. Due to the particularity of the latex tube wrapping used in the resistance to draw unit, it is currently necessary to manually select one of the coarse, medium and fine measuring components according to the diameter of the sample to be tested, and then install and measure it. When the diameter of the sample is switched, it is necessary to manually install and switch the measuring component of the corresponding diameter, which is time-consuming.

[0003] Therefore, it is necessary to develop a multi-channel switching device for measuring the draw resistance of cigarettes and filter rods to solve the above problems. Summary of the invention

[0004] The purpose of the utility model is to design a multi-channel switching device for measuring the draw resistance of cigarettes and filter rods in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] Multi-channel switching device for measuring the draw resistance of cigarettes and filter rods, including:

[0007] At least two draw resistance test heads for adapting to cigarettes and filter rods of different thicknesses;

[0008] A component mounting seat; at least two mounting cavities are vertically arranged on the component mounting seat, the at least two mounting cavities are arranged in the same row and arranged along the length direction of the component mounting seat, a first opening is arranged at the bottom of the mounting cavity, and air holes of the same number as the mounting cavities are arranged on the inner side wall of the component mounting seat, and one air hole is connected to one mounting cavity;

[0009] A circular cylinder used for switching the required suction resistance test head on the component mounting seat to the suction resistance station; the actuating end of the circular cylinder is connected to the component mounting seat, the actuating direction of the circular cylinder is horizontal, and the circular cylinder is set in a fixed position;

[0010] Rotary clamping cylinder; the rotary clamping cylinder is vertically inverted;

[0011] The shaft bracket is arranged transversely; the actuating end of the rotary clamping cylinder is connected to the first end of the shaft bracket;

[0012] V-shaped sealing ring a; the V-shaped sealing ring a is installed above the second end of the shaft bracket; when the rotary clamping cylinder is in the first actuating position, the V-shaped sealing ring a is not placed below the first opening, and when the rotary clamping cylinder is in the second actuating position, the V-shaped sealing ring a rotates to the bottom of the first opening and seals the first opening upward;

[0013] Single-acting cylinder; the piston rod of the single-acting cylinder is hollow, the rear end of the piston rod is connected to the negative pressure source, and the front end of the piston rod is used to connect with the air hole when the suction resistance test head reaches the suction resistance station.

[0014] The beneficial effects of the utility model are:

[0015] 1. The present application adopts a plurality of different sizes of draw resistance test heads to perform draw resistance tests on cigarettes and filter rods of different thicknesses; the plurality of draw resistance test heads are installed on a component mounting seat and the required draw resistance test heads are switched to the draw resistance station through a circular cylinder, so as to realize rapid switching of draw resistance test heads of different sizes to perform draw resistance tests on cigarettes and filter rods of different thicknesses, thereby reducing manual installation and saving time.

[0016] 2. The use of rotary clamping cylinder can realize two actions in one cylinder and reduce the control logic.

[0017] 3. A single-acting cylinder is used and its piston rod is subjected to negative pressure. When the suction resistance test head is switched, the front end of the single-acting cylinder is separated from the air hole and does not fit the moving component mounting seat, so there is no wear and tear, which increases the service life of the instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation structure of this application;

[0019] Figure 2 This is a schematic diagram of the installation structure of the rotary clamping cylinder in this application;

[0020] Figure 3 This is the main view of this application;

[0021] Figure 4 This is a schematic diagram of the installation structure of the single-acting center-hole cylinder in this application;

[0022] Figure 5 A cross-sectional view of the present application;

[0023] Figure 6 This is a schematic diagram of the structure of the back side of the panel of this application;

[0024] In the figure: 1-valve group, 2-side plate, 3-panel, 4-negative pressure gauge, 5-built-in high rod, 6-built-in low rod, 7-protective plate, 8-cleaning port, 9-component mounting seat, 91-air hole, 10-coarse sample suction resistance test head, 11-fine sample suction resistance test head, 12-temperature and humidity sensor, 13-single chip microcomputer, 14-ball linear guide, 15-guide, 16-V-type sealing ring a, 17-shaft bracket, 18-rotary clamping cylinder, 19-V-type sealing ring b, 20-single-acting cylinder, 21-discharge detection port, 22-round cylinder. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.

[0029] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical 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.

[0031] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings.

[0032] like Figure 1-6 As shown, a multi-channel switching device for measuring the draw resistance of cigarettes and filter rods comprises:

[0033] Two draw resistance test heads for adapting to cigarettes and filter rods of different thicknesses, namely a coarse sample draw resistance test head 10 and a fine sample draw resistance test head 11;

[0034] Component mounting seat 9; two mounting cavities are vertically arranged in the component mounting seat 9, the two mounting cavities are arranged in the same row and arranged along the length direction of the component mounting seat 9, a first opening is arranged at the bottom of the mounting cavity, and two air holes 91 are arranged on the inner side wall of the component mounting seat 9, and one air hole 91 is connected to one mounting cavity;

[0035] A circular cylinder 22 for switching the required suction resistance test head on the component mounting seat to the suction resistance station; the actuating end of the circular cylinder 22 is connected to the component mounting seat 9, and the actuating direction of the circular cylinder 22 is horizontal;

[0036] Rotating clamping cylinder 18; Rotating clamping cylinder 18 is vertically inverted;

[0037] The shaft support 17 is disposed transversely; the actuating end of the rotary clamping cylinder 18 is connected to the first end of the shaft support 17;

[0038] V-shaped sealing ring a16; the V-shaped sealing ring a16 is installed above the second end of the shaft bracket 17; when the rotary clamping cylinder 18 is in the first actuating position, the V-shaped sealing ring a16 is not placed below the first opening, and when the rotary clamping cylinder 18 is in the second actuating position, the V-shaped sealing ring a16 rotates to the bottom of the first opening and seals the first opening upward;

[0039] Single-acting cylinder 20, V-shaped sealing ring b19; the piston rod of the single-acting cylinder 20 is hollow, the rear end of the piston rod is connected to the negative pressure source, and the front end of the piston rod is used to communicate with the air hole 91 when the suction resistance test head reaches the suction resistance station; the V-shaped sealing ring b19 is installed on the outside of the front end of the piston rod to seal the connection between the front end of the piston rod and the air hole 91;

[0040] The guide member 15 is perpendicular to the shaft bracket 17, the first end of the guide member 15 is connected to the first end of the shaft bracket 17, and the second end of the guide member 15 is vertically provided with a guide hole. When the rotary clamping cylinder 18 is located at the first actuating position, the guide hole of the guide member 15 is placed below the first opening and is used to guide the cigarette and filter rod to be transported downward after the draw resistance test is completed;

[0041] Panel 3; a working groove is provided on the panel 3, the circular cylinder 22 and the rotary clamping cylinder 18 are both mounted on the inner side of the panel 3, the front end of the piston rod of the single-acting cylinder 20, the V-shaped sealing ring a16 on the shaft bracket 17 and the second end of the guide member 15 all pass through the working groove to work; the actuating end of the circular cylinder 22 is connected to the component mounting seat 9 through a connecting piece, and a corresponding slide groove is also provided on the panel 3, and the connecting piece can move in the slide groove;

[0042] Ball linear guide 14; the component mounting seat 9 is mounted on the outer side of the panel 3 through the ball linear guide 14.

[0043] like Figure 1 As shown, valve group 1, side plate 2, negative pressure gauge 4, built-in high rod 5, built-in low rod 6, protective plate 7, cleaning port 8, temperature and humidity sensor 12, single chip 13, material discharging detection port 21 are also shown; multiple side plates 2, bottom plate, top plate, panel 3, etc. constitute the box structure, and valve group 1, negative pressure gauge 4, built-in high rod 5, built-in low rod 6, temperature and humidity sensor 12, single chip 13, rotary clamping cylinder 18, single-acting cylinder 20, circular cylinder 22, etc. are all or partially placed in the box. The single chip 13 plays the role of cooperating with the valve group 1 to control each cylinder, control each sensor to obtain data, etc. This is the existing technology and will not be repeated here.

[0044] The single chip computer 13 controls the air intake action of the circular cylinder 22 by controlling the valve group 1 , and the circular cylinder 22 pushes and pulls the assembly mounting seat 9 to move laterally, thereby realizing the switching between the coarse sample suction resistance test head 10 and the fine sample suction resistance test head 11 below the cleaning port 8 .

[0045] The vacuum generator generates a negative pressure source and is used to provide the negative pressure source after being connected to the rear end of the piston rod. The negative pressure reading can be viewed in real time on the negative pressure gauge 4.

[0046] When the resistance to suction sensor needs to be calibrated, the single chip computer 13 switches the gas path by controlling the valve group 1, and reads the values ​​of the built-in high rod 5 and the built-in low rod 6, thereby realizing the calibration of the resistance to suction sensor. This is the prior art and will not be elaborated here.

[0047] The temperature and humidity sensor 12 reads the ambient temperature and humidity in real time. When the ambient temperature and humidity change, the absorption resistance value can be compensated according to a specific algorithm.

[0048] like Figure 2As shown, the assembly mounting seat 9 is connected to the ball linear guide 14, and the ball linear guide is connected to the panel 3. When the shaft of the rotary clamping cylinder 18 is extended, it will move along a trajectory that is first linear and then rotational. Figure 2 The state shown is an unsealed state, ie, a first actuated position.

[0049] like Figure 3 As shown, at this time, the shaft of the rotary clamping cylinder is in a retracted state, the V-shaped sealing ring a16 is tightly fitted under the first opening of the component mounting seat 9, and the channel is sealed. The guide member rotates to the other side.

[0050] like Figure 4 As shown, the single-acting cylinder 20 can pass negative pressure. When the front end of the piston rod of the single-acting cylinder is extended, the V-shaped sealing ring b19 fits on the air hole 91 of the component mounting seat 9 to seal, and the negative pressure can act on the mounting cavity. When the suction resistance test head is ready to be switched, the piston rod of the single-acting cylinder 20 is retracted, and the component mounting seat 9 slides on the ball linear guide 14. The advantage of this method is that there is no friction loss.

[0051] like Figure 5 As shown, during measurement, the V-shaped sealing ring a16 is fitted under the component mounting seat 9 to form a seal.

[0052] like Figure 6 As shown, the circular cylinder 22 is fixed on the panel 3, and the axis of the circular cylinder 22 is connected to the component mounting seat 9 through a connecting piece. When the axis of the circular cylinder 22 is controlled to extend and retract, the component mounting seat 9 switches its lateral position.

[0053] Measurement Instructions:

[0054] During operation, when the coarse sample draw resistance test head 10 is used to measure coarse cigarettes, the vacuum generator generates negative pressure, the piston rod of the single-acting cylinder 20 is connected to the air hole 91, the rotary clamping cylinder 18 is opened, and the V-shaped sealing ring a16 seals the first opening. The cigarette and filter rod samples fall freely from top to bottom and enter the circular hole in the cleaning port 8. The vacuum generator generates a negative pressure source to act on the installation cavity, and the draw resistance sensor value is read.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multi-channel switching device for measuring the draw resistance of cigarettes and filter rods, characterized in that: include: At least two draw resistance test heads for adapting to cigarettes and filter rods of different thicknesses; Component mounting seat (9); At least two installation cavities are vertically arranged on the component installation seat (9), the at least two installation cavities are arranged in the same row and arranged along the length direction of the component installation seat (9), a first opening is arranged at the bottom of the installation cavity, and the inner side wall of the component installation seat (9) is provided with air holes (91) having the same number as the installation cavities, and one air hole (91) is correspondingly connected to one installation cavity; A circular cylinder (22) for switching a required suction resistance test head on a component mounting seat to a suction resistance station; an actuating end of the circular cylinder (22) is connected to the component mounting seat (9), an actuating direction of the circular cylinder (22) is horizontal, and the circular cylinder (22) is arranged at a fixed position; A rotary clamping cylinder (18); the rotary clamping cylinder (18) is vertically inverted; The shaft support (17) is disposed transversely; the actuating end of the rotary clamping cylinder (18) is connected to the first end of the shaft support (17); V-shaped sealing ring a (16); the V-shaped sealing ring a (16) is installed above the second end of the shaft bracket (17); when the rotary clamping cylinder (18) is located at the first actuating position, the V-shaped sealing ring a (16) is not placed below the first opening, and when the rotary clamping cylinder (18) is at the second actuating position, the V-shaped sealing ring a (16) rotates to the bottom of the first opening and seals the first opening upward; A single-acting cylinder (20); the piston rod of the single-acting cylinder (20) is hollow, the rear end of the piston rod is connected to a negative pressure source, and the front end of the piston rod is used to communicate with the air hole (91) when the suction resistance test head reaches the suction resistance station.

2. The multi-channel switching device for measuring the draw resistance of cigarettes and filter rods according to claim 1, characterized in that: The multi-channel switching device further comprises a guide member (15), the guide member (15) being perpendicular to the shaft support (17), the first end of the guide member (15) being connected to the first end of the shaft support (17), the second end of the guide member (15) being vertically provided with a guide hole, and when the rotary clamping cylinder (18) is located at the first actuating position, the guide hole of the guide member (15) is located below the first opening and is used for guiding the cigarette and filter rod to be transported downward after the draw resistance test is completed.

3. The multi-channel switching device for measuring the draw resistance of cigarettes and filter rods according to claim 2, characterized in that: The multi-channel switching device also includes a panel (3) and a ball linear guide rail (14), and the component mounting seat (9) is mounted on the outer side of the panel (3) via the ball linear guide rail (14).

4. The multi-channel switching device for measuring the draw resistance of cigarettes and filter rods according to claim 3, characterized in that: A working groove is provided on the panel (3), and the circular cylinder (22) and the rotary clamping cylinder (18) are both mounted on the inner side of the panel (3). The front end of the piston rod of the single-acting cylinder (20), the V-shaped sealing ring a (16) on the shaft bracket (17), and the second end of the guide member (15) all pass through the working groove to work.

5. The multi-channel switching device for measuring the draw resistance of cigarettes and filter rods according to claim 1, characterized in that: The multi-channel switching device further comprises a V-shaped sealing ring b (19), which is mounted on the outer side of the front end of the piston rod.

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