CN111220105A

CN111220105A - Tobacco testing device

Info

Publication number: CN111220105A
Application number: CN201811419065.4A
Authority: CN
Inventors: 范修波; 赵战辉; 李彦辉
Original assignee: BEIJING OMERICA TECHNOLOGY CO LTD
Current assignee: BEIJING OMERICA TECHNOLOGY CO LTD
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2020-06-02

Abstract

The invention relates to the technical field of tobacco sample detection, in particular to a tobacco testing device. The tobacco testing device comprises an annular claw disc, an annular rotating disc arranged in the annular claw disc, at least three clamping claws and a limiting mechanism capable of limiting the movement of the annular claw disc, wherein the outer end part of each clamping claw is rotationally connected with the annular claw disc through a first connecting piece, the middle part of each clamping claw is rotationally connected with the annular rotating disc through a second connecting piece, the tip part of each clamping claw can be located at the central position of the annular rotating disc, and a clamping spring is connected between the annular claw disc and the annular rotating disc. The tobacco testing device provided by the invention has an exquisite structure, and can stably clamp the sample at the rotating center through the clamping action of each clamping claw, so that the concentric rotation measurement of the sample is realized, and the testing precision is improved.

Description

Tobacco testing device

Technical Field

The invention relates to the technical field of tobacco sample detection, in particular to a tobacco testing device.

Background

Currently, in a general tobacco testing device, negative pressure adsorption or clamping by two claws is generally adopted. The negative pressure adsorption is a test in an eccentric state, and thus it is difficult to ensure a center test of the sample. The clamping of the two claws cannot really ensure that samples with various specifications are subjected to center test. The two modes can not realize that the test sample rotates around the rotation center to be measured, and have certain eccentric distance with the rotation center, and the measurement surface of the laser measuring head passes through the rotation center, so that the precision of the laser measuring head is in a descending trend from the center to two sides, and certain measurement precision is reduced due to eccentric measurement.

Disclosure of Invention

Technical problem to be solved

The invention aims to provide a tobacco testing device, which solves the problem that the existing tobacco device can not realize the measurement of a test sample by rotating around a rotating center.

(II) technical scheme

In order to solve the technical problem, the invention provides a tobacco testing device which comprises an annular claw disc, an annular rotating disc arranged in the annular claw disc, at least three clamping claws and a limiting mechanism capable of limiting the movement of the annular claw disc; the outer end part of each clamping claw is rotatably connected with the annular claw disc through a first connecting piece, the middle part of each clamping claw is rotatably connected with the annular rotating disc through a second connecting piece, and the tip part of each clamping claw can be positioned at the central position of the annular rotating disc; and a clamping spring is connected between the annular claw disc and the annular rotating disc.

Further, the limiting mechanism comprises an opening striker arranged on the annular claw disc and an opening rotating piece capable of limiting the movement of the opening striker.

Specifically, the middle part of opening the commentaries on classics piece is connected with the base rotation through the third connecting piece, open the one end of commentaries on classics piece can with open and hit the piece and block the contact, open the other end of commentaries on classics piece and connect the opening spring, the opening spring with the base links to each other.

Specifically, the opening rotating piece is of a V-shaped structure.

Further, a proximity switch for detecting the position of the opening striker is included.

Specifically, the proximity switch is mounted on the base by a proximity switch bracket.

Further, the annular rotating disk is connected with a driving motor.

Further, a sample mounting hole is formed in the center of the annular rotating disc.

Specifically, one end of the clamping spring is connected with the annular rotating disk through a fourth connecting piece, and the other end of the clamping spring is connected with the outer end part of one of the clamping claws.

Specifically, the first connecting piece is a follower cam, and the second connecting piece is a rotating shaft.

(III) advantageous effects

The technical scheme of the invention has the following advantages:

according to the tobacco testing device provided by the invention, in a sample-free state, the annular rotating disc rotates to drive the annular claw disc to rotate along with the annular rotating disc, at the moment, each clamping claw is in a clamping state, when the limiting mechanism acts on the annular claw disc, the annular claw disc stops rotating, the annular rotating disc continues rotating, so that each clamping claw is opened at the same time, and at the moment, the tobacco testing device can be used for entering and discharging samples. After the sample enters, the annular rotating disc is driven to continue rotating until the annular claw disc overcomes the action of the limiting mechanism under the action of the tensile force of the clamping spring, so that the annular claw disc is restored to a rotating state, and further, each clamping claw is restored to a clamping state under the action of the clamping spring. The tobacco testing device provided by the invention has an exquisite structure, and can stably clamp the sample at the rotating center through the clamping action of each clamping claw, so that the concentric rotation measurement of the sample is realized, and the testing precision is improved. The tobacco testing device provided by the invention can be used for measuring the length and the circumference of a tobacco sample.

Drawings

FIG. 1 is a schematic view of a no-sample state of a tobacco testing device in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of an open state of a tobacco testing device according to an embodiment of the present invention;

FIG. 3 is a schematic view of a sample clamping state of a tobacco testing device according to an embodiment of the present invention.

In the figure: 1: an annular claw disk; 2: an annular rotating disc; 3: a clamping jaw; 4: a first connecting member; 5: a second connecting member; 6: a clamping spring; 7: opening the collision piece; 8: opening the rotating piece; 9: a third connecting member; 10: opening the spring; 11: a proximity switch; 12: a proximity switch bracket; 13: a fourth connecting member; 14: a tobacco sample.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1 to 3, the embodiment of the present invention provides a tobacco testing device, which comprises an annular claw disk 1, an annular rotating disk 2 arranged in the annular claw disk 1, at least three clamping claws 3, and a limiting mechanism capable of limiting the movement of the annular claw disk 1. Wherein the annular rotary disk 2 is freely rotatable in the annular claw disk 1, and the annular claw disk 1 is rotatable relative to the annular rotary disk 2. The limiting mechanism can form a blocking effect on the annular claw disk 1 and is used for limiting the rotation action of the annular claw disk 1.

The outer end part of each clamping claw 3 is rotatably connected with the annular claw disk 1 through a first connecting piece 4, the middle part of each clamping claw 3 is rotatably connected with the annular rotating disk 2 through a second connecting piece 5, and the tip part of each clamping claw 3 can be positioned at the center of the annular rotating disk 2. That is, each of the clamping claws 3 can connect the annular claw disk 1 and the annular rotating disk 2 together.

And a clamping spring 6 is connected between the annular claw disk 1 and the annular rotating disk 2.

When the chucking spring 6 is in a natural state, the tip end portion of each of the chucking claws 3 is located at the center position of the annular rotating disk 2, that is, each of the chucking claws 3 is in a chucking state. When the annular claw disk 1 stops moving under the action of the limiting mechanism, the annular rotating disk 2 continues to rotate, the clamping spring 6 is gradually stretched, the angle of each clamping claw 3 is changed, the tip end part of each clamping claw 3 deviates from the central position of the annular rotating disk 2, and each clamping claw 3 is in an open state. When the pulling force applied to the annular claw disk 1 by the clamping spring 6 is greater than the blocking force applied to the annular claw disk 1 by the limiting mechanism, the annular rotating disk 2 rotates continuously, the annular claw disk 1 can overcome the blocking effect of the limiting mechanism, the annular claw disk 1 is returned to the rotating state, and the clamping spring 6 contracts gradually, so that each clamping claw 3 is returned to the clamping state.

The tobacco testing device provided by the embodiment of the invention has a delicate structure, can be used for measuring the length and the circumference of a tobacco sample, and can stably clamp the tobacco sample at a rotation center through the clamping action of each clamping claw 3, so that the concentric rotation measurement of the tobacco sample is realized.

Further, the limit mechanism includes an opening striker 7 provided on the annular pawl disk 1, and an opening rotating member 8 capable of limiting movement of the opening striker 7.

Wherein, the middle part of the opening rotating piece 8 is rotatably connected with a base (not shown) through a third connecting piece 9, and one end of the opening rotating piece 8 can be contacted with the opening collision piece 7 in a blocking way, thereby forming a blocking effect on the annular claw disk 1. The other end of the opening rotating piece 8 is connected with an opening spring 10, and the opening spring 10 is connected with the base. When the opening spring 10 is in the contracted state, the opening rotary 8 is in the blocking state. When the pulling force applied to the annular claw disk 1 is greater than the blocking force applied to the opening striker 7 by the opening rotary member 8, the opening striker 7 will strike the opening rotary member 8, the annular claw disk 1 returns to the rotating state, and the opening rotary member 8 returns to the blocking state under the pulling force of the opening spring 10.

Specifically, the opening rotating member 8 has a V-shaped structure, which facilitates the blocking action of the opening striker 7, and facilitates the restoration of the opening rotating member 8 to the blocking state under the action of the opening spring 10 after the opening striker 7 strikes the opening rotating member 8.

Further, the annular rotary disk 2 is connected to a drive mechanism (not shown). The driving mechanism preferably adopts a driving motor, and the annular rotating disk 2 is driven by the driving motor to rotate at a constant speed.

Further, the tobacco testing device according to the embodiment of the present invention further includes a proximity switch 11, where the proximity switch 11 is configured to detect a position of the opening striker 7, and the proximity switch 11 detects a rotation distance of the opening striker 7 to control the driving motor to stop, so that each clamping jaw 3 is kept in an open state, and entry and exit of a tobacco sample are facilitated.

Wherein the proximity switch 11 is mounted on the base by a proximity switch bracket 12.

Further, a sample mounting hole is formed in the center of the annular rotating disc 2 and used for placing a tobacco sample.

Specifically, one end of the clamping spring 6 is connected to the annular rotary disk 2 through a fourth connecting member 13, and the other end of the clamping spring 6 is connected to an outer end portion of one of the clamping claws 3. Therefore, under the combined action of the clamping spring 6 and the clamping claws 3, when the annular rotating disk 2 drives the annular claw disk 1 to rotate, each clamping claw 3 can be in a clamping state.

Specifically, the first connecting piece 4 adopts a follower cam, the second connecting piece 5 adopts a rotating shaft, the third connecting piece 9 adopts a rotating shaft, and the fourth connecting piece 13 adopts a fixed shaft.

The working process of the tobacco testing device provided by the embodiment of the invention is as follows:

in the non-sample state, the annular rotating disk 2 is driven by the driving motor to rotate clockwise, the rotation of the annular rotating disk 2 drives the annular claw disk 1 to rotate therewith, and at the moment, each clamping claw 3 is in a clamping state, as shown in fig. 1. When the opening striker 7 strikes against the opening rotary member 8, the annular jaw disk 1 stops rotating, and the annular rotary disk 2 continues rotating, so that the clamping jaws 3 are simultaneously opened, as shown in fig. 2, the distance of movement of the opening striker 7 is detected by the proximity switch 11 to control the driving motor to stop rotating, thereby keeping the clamping jaws 3 in an open state, which is available for the entrance and discharge of tobacco samples 14. After the tobacco samples 14 enter the sample mounting holes, the driving motor drives the annular rotating disc 2 to continue rotating until the opening collision piece 7 is subjected to a pulling force which enables the opening rotation piece 8 to overcome the pulling force of the opening spring 10, then the opening collision piece 7 collides the opening rotation piece 8 to enable the annular claw disc 1 to recover a rotating state, meanwhile, each clamping claw 3 recovers to a clamping state under the action of the pulling force of the clamping spring 6, at the moment, each clamping claw 3 can drive the tobacco samples 14 to perform a rotation test, as shown in fig. 3, until the opening state of each clamping claw 3 is repeated, the tobacco samples 14 are taken out, and the test is completed.

In conclusion, the tobacco testing device provided by the embodiment of the invention has a delicate structure, and can stably clamp the sample at the rotating center through the clamping action of each clamping claw, so that the concentric rotation measurement of the sample is realized, and the testing precision is improved.

The tobacco testing device provided by the embodiment of the invention can be used for measuring the length and the circumference of a tobacco sample.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, unless otherwise specified, "a plurality" means one or more; "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A tobacco testing device is characterized in that: the clamping device comprises an annular claw disc, an annular rotating disc arranged in the annular claw disc, at least three clamping claws and a limiting mechanism capable of limiting the movement of the annular claw disc; the outer end part of each clamping claw is rotatably connected with the annular claw disc through a first connecting piece, the middle part of each clamping claw is rotatably connected with the annular rotating disc through a second connecting piece, and the tip part of each clamping claw can be positioned at the central position of the annular rotating disc; and a clamping spring is connected between the annular claw disc and the annular rotating disc.

2. A tobacco testing device according to claim 1, characterized in that: the limiting mechanism comprises an opening collision piece arranged on the annular claw disc and an opening rotating piece capable of limiting the movement of the opening collision piece.

3. A tobacco testing device according to claim 2, characterized in that: the middle part of the opening rotating piece is rotatably connected with the base through a third connecting piece, one end of the opening rotating piece can be in blocking contact with the opening collision piece, the other end of the opening rotating piece is connected with an opening spring, and the opening spring is connected with the base.

4. A tobacco testing device according to claim 3, characterized in that: the opening rotating piece is of a V-shaped structure.

5. A tobacco testing device according to claim 3, characterized in that: a proximity switch for detecting the position of the opening striker is also included.

6. A tobacco testing device according to claim 5, characterized in that: the proximity switch is installed on the base through a proximity switch bracket.

7. A tobacco testing device according to claim 1, characterized in that: the annular rotating disc is connected with a driving motor.

8. A tobacco testing device according to claim 1, characterized in that: and a sample mounting hole is formed in the center of the annular rotating disc.

9. A tobacco testing device according to claim 1, characterized in that: one end of the clamping spring is connected with the annular rotating disc through a fourth connecting piece, and the other end of the clamping spring is connected with the outer end of one of the clamping claws.

10. A tobacco testing device according to claim 1, characterized in that: the first connecting piece is a follow-up cam, and the second connecting piece is a rotating shaft.