A position-adjustable miniature force sensor device for tobacco

Abstract

A position-adjustable miniature force sensor device for tobacco, characterized in that: the overall shape of the device is in the shape of a cigarette stick, including a base body with an axial concave groove, a sliding base arranged in the concave groove, and a force sensor embedded in the sliding base; the sliding base is arranged in the axial concave groove of the base body through a screw rod installed in the inverted convex bottom surface, and can be displaced by the rotation of the screw rod. The overall shape of the force sensor device of the present invention is similar to the shape of cigarettes and filter rods, and the position of the force sensor is adjustable along the axial direction of the force sensor device, which can assist personnel in aligning the force sensor with the pressure head of the cigarette and filter rod hardness testing equipment; during the pressure head pressure calibration process of the cigarette and filter rod hardness testing equipment, the position of the force sensor can be maintained by its own structural characteristics without human intervention. It is suitable for measuring the pressure head pressure of cigarette and filter rod hardness testing equipment of different brands and models, and can effectively reduce human errors.

Description

Technical Field

[0001] The invention relates to the field of force sensor testing, in particular to a position-adjustable miniature force sensor device specifically for tobacco. Background Art

[0002] The equipment used to test the hardness of cigarettes and filter rods usually has an impact on the hardness measurement results due to the change in the pressure of the indenter, so the pressure of the indenter needs to be calibrated frequently through a force sensor device. The existing force sensor devices used for calibrating the pressure of the indenter of cigarette and filter rod hardness testing equipment are usually cylindrical thin sheets, with the pressure probe located on the bottom surface of the cylinder, and the signal is transmitted through a soft cable. Due to the diversity of cigarette and filter rod hardness testing equipment, the installation direction and installation position of the indenter are different. The placement position of the force sensor in the existing force sensor device is entirely based on manual judgment, and it is difficult to ensure that the force sensor is aligned with the indenter, and the measurement value will change with the change of the placement position.

[0003] In addition, during the pressure calibration process of the cigarette and filter rod hardness testing equipment, the existing force sensor device can only maintain the position of the force sensor by holding its cable, which will inevitably introduce human errors. These will cause differences in calibration results when multiple calibrations are performed and different personnel perform force calibration. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a miniature force sensor with adjustable position for tobacco. The position of the force sensor of the device is adjustable along the axial direction of the entire device, which can assist personnel in aligning the force sensor with the pressure head of the cigarette and filter rod hardness testing device; during the pressure calibration process of the pressure head of the cigarette and filter rod hardness testing device, the position of the force sensor can be maintained by its own structural characteristics without human intervention.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A position-adjustable miniature force sensor device for tobacco, the overall shape of the device is in the shape of a cigarette stick, including a base body with an axial concave slide groove, a sliding base arranged in the concave slide groove, and a force sensor embedded in the sliding base; the outer contour of the base body base is a cigarette stick-shaped cylinder, the two ends are cylindrical limiters, the middle part is a semi-cylinder and is processed with an axial concave slide groove, the bottom surface of the sliding base is an inverted convex shape, which matches the concave slide groove of the base body base, the sliding base is arranged in the axial concave slide groove of the base body base by a screw rod installed in the inverted convex bottom surface, and The displacement can be achieved by rotating the screw, and both ends of the screw extend to the cylindrical limit bodies at both ends of the lower base. The screw hole in the cylindrical limit body at one end is a blind hole without internal threads, and the screw hole in the cylindrical limit body at the other end is a through hole with internal threads, and a force sensor cable lead-out hole is processed on the cylindrical limit body at the through hole end; a concave test bench for embedding the force sensor is processed on the upper surface of the sliding base, and a force sensor cable through-hole is also provided in the sliding base, and the force sensor cable is led out through the through-hole and the cable lead-out hole on the cylindrical limit body of the lower base.

[0007] The inner end surfaces on both sides of the concave test bench are arc-shaped inner end surfaces concentric with the pressure head of the detection equipment, which can facilitate the alignment operation of the auxiliary force sensor and the pressure head.

[0008] The top surface of the force sensor protrudes from the concave test bench surface with a protrusion height of 1-2 mm.

[0009] The maximum outer contour of the upper surface of the sliding base is an arc shape, which is consistent with the outer periphery of the cylindrical limiters at both ends of the base, so that the entire device has a cigarette-shaped appearance.

[0010] The outstanding features of the present invention are: providing a tobacco-specific position-adjustable miniature force sensor, which can effectively assist personnel in aligning the position of the pressure head of the cigarette and filter rod hardness testing equipment with the force sensor; by simulating the shape of the cigarette and combining the limiting device of the cigarette and filter rod hardness testing equipment itself, the position of the force sensor can be well maintained during the pressure calibration process of the pressure head of the cigarette and filter rod hardness testing equipment; in addition, the position of the force sensor of the device is adjustable along the axial direction of the entire device, and can adapt to cigarette and filter rod hardness testing equipment of different models and specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the present invention;

[0012] Figure 2 For along Figure 1 Schematic diagram of the middle AA line;

[0013] Figure 3 For along Figure 1 Schematic diagram of the middle BB line;

[0014] Figure 4 for Figure 1 A three-dimensional schematic diagram of

[0015] Figure 5 It is a structural schematic diagram of a sliding base;

[0016] In the figure: 1. force sensor, 2. base, 2-1. limiter, 2-2. axial concave slide groove, 3. sliding base, 3-1. concave test bench, 3-2. arc-shaped inner end surface (i.e. auxiliary alignment groove), 3-3. inverted convex bottom surface, 3-4. screw hole, 4. screw, 5. cable. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings:

[0018] like Figure 1-5 As shown: a position-adjustable miniature force sensor device for tobacco, the overall shape of the device is in the shape of a cigarette, including a base 2 with an axial concave groove 2-2, a sliding base 3 arranged in the concave groove, and a force sensor 1 embedded in the sliding base; the outer contour of the base 2 is a cigarette-shaped cylinder, with cylindrical limiters 2-1 at both ends, a semi-cylindrical middle part and an axial concave groove 2-2, the bottom surface of the sliding base 3 is inverted convex, matching the concave groove 2-2 of the base base, and the sliding base 3 is arranged in the axial concave groove of the base base through a screw 4 installed in the inverted convex bottom surface 3-3. The force sensor cable is connected to the cylindrical limit body 2-1 at the two ends of the lower base, and the force sensor cable is connected to the cylindrical limit body 2-1 at the two ends of the lower base. The screw hole in the cylindrical limit body at one end is a blind hole without internal threads, and the screw hole in the cylindrical limit body at the other end is a through hole with internal threads, and a force sensor cable lead-out hole is processed on the cylindrical limit body at the through hole end; the upper surface of the sliding base 3 is processed with a concave test bench 3-1 for embedding the force sensor, and a force sensor cable through-hole is also opened in the sliding base, and the force sensor cable 5 is led out through the through-hole and the cable lead-out hole on the cylindrical limit body of the lower base.

[0019] The inner end surfaces on both sides of the concave test bench 3-1 are arc-shaped inner end surfaces 3-2 that are concentric with the pressure head of the detection equipment, which can facilitate the alignment operation of the auxiliary force sensor and the pressure head.

[0020] The top surface of the force sensor 1 protrudes from the concave test bench 3-1, and the protrusion height is 1-2 mm.

[0021] The maximum outer contour of the upper surface of the sliding base 3 is an arc shape, which is consistent with the outer periphery of the cylindrical limit bodies at both ends of the base 2, so that the entire device has a cigarette-shaped appearance.

[0022] Before starting to measure the force value, simulate the state of cigarette placement and put the tobacco-specific position adjustable micro force sensor into the cigarette and filter rod hardness testing equipment, record the position of the probe of the cigarette and filter rod hardness testing equipment, then take out the tobacco-specific position adjustable micro force sensor, and adjust the base base 2 by turning the screw 4 so that after the cigarette and filter rod hardness testing equipment is placed in, the auxiliary alignment groove 3-2 on the sliding base 3 is the same height as the probe, and simulate the state of cigarette placement again to put the tobacco-specific position adjustable micro force sensor into the cigarette and filter rod hardness testing equipment, so that the auxiliary alignment groove 3-2 of the sliding base faces the side of the pressure head of the cigarette and filter rod hardness testing equipment, rotate the tobacco-specific position adjustable micro force sensor so that the auxiliary alignment groove 3-2 of the sliding base is concentric with the pressure head of the cigarette and filter rod hardness testing equipment, and operate the cigarette and filter rod hardness testing equipment to measure the probe pressure.

Claims

1. A position-adjustable miniature force sensor device for tobacco, characterized in that: The overall appearance of the device is in the shape of a cigarette, including a base body with an axial concave slide groove, a sliding base arranged in the concave slide groove, and a force sensor embedded in the sliding base; the outer contour of the base body is a cigarette-shaped cylinder, with cylindrical limiters at both ends, a semi-cylindrical middle part and an axial concave slide groove, the bottom surface of the sliding base is inverted convex, matching the concave slide groove of the base body, the sliding base is arranged in the axial concave slide groove of the base body by a screw rod installed in the inverted convex bottom surface, and can be positioned by the rotation of the screw rod The two ends of the screw extend to the cylindrical limiting bodies at the two ends of the base, the screw hole in the cylindrical limiting body at one end is a blind hole without internal threads, and the screw hole in the cylindrical limiting body at the other end is a through hole and is processed with internal threads, and a force sensor cable lead-out hole is processed on the cylindrical limiting body at the through hole end; the upper surface of the sliding base is processed with a concave test bench for embedding the force sensor, and a force sensor cable through-hole is also provided in the sliding base, and the force sensor cable is led out through the through-hole and the cable lead-out hole on the cylindrical limiting body of the base; The inner end surfaces on both sides of the concave test table are arc-shaped inner end surfaces concentric with the pressure head of the detection equipment, which can facilitate the alignment operation of the auxiliary force sensor and the pressure head; The top surface of the force sensor protrudes from the concave test bench surface, and the protrusion height is 1-2 mm.

2. The position-adjustable miniature force sensor device for tobacco according to claim 1, characterized in that: The maximum outer contour of the upper surface of the sliding base is an arc shape, which is consistent with the outer periphery of the cylindrical limiters at both ends of the base, so that the entire device has a cigarette-shaped appearance.

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