CN111972702A

CN111972702A - Flexible cigarette rotary chuck

Info

Publication number: CN111972702A
Application number: CN201910434581.2A
Authority: CN
Inventors: 朱轶; 钟英; 张义
Original assignee: Shanghai Shengqi Electromechanical Equipment Co ltd; Shanghai Tobacco Group Co Ltd
Current assignee: Shanghai Shengqi Electromechanical Equipment Co ltd; Shanghai Tobacco Group Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-11-24
Anticipated expiration: 2039-05-23
Also published as: CN111972702B

Abstract

The invention provides a flexible cigarette rotary chuck which comprises a fixed base, a chuck plate, two clamping pieces and an elastic element, wherein the chuck plate is rotatably supported on the fixed base, the two clamping pieces are rotatably arranged on the chuck plate, a concave clamping surface is arranged on each clamping piece, a clamping cavity for clamping a cigarette is formed by the clamping surfaces of the two clamping pieces, and the elastic element is connected between the two clamping pieces. In this application, when elastic element who connects between two clamping pieces makes clamping piece centre gripping cigarette, the clamping piece can gently contact a cigarette surface, realizes that the flexibility centre gripping cigarette props up, produces the cigarette and destroys when effectively avoiding the centre gripping cigarette to guarantee the degree of accuracy that a cigarette outward appearance detected.

Description

Flexible cigarette rotary chuck

Technical Field

The invention relates to the field of cigarette appearance detection, in particular to a flexible cigarette rotary chuck.

Background

Various appearance defects are often generated in the cigarette production process, and various steel seal defects can also be generated for cigarette products with steel seals. Therefore, it is necessary to design an image-based cigarette appearance detection system, perform 360-degree full-range detection on cigarette appearance defects and steel marks, and produce related appearance quality data. A cigarette outward appearance detecting system has the detection (holding) chuck, detects the (holding) chuck and need clip the upper portion and the lower part of a cigarette respectively to can drive a cigarette 360 degrees rotations, make like the detection to the cigarette that does not detect the (holding) chuck centre gripping respectively and expose the part. Therefore, the detection chuck needs to have the following functions: can clamp or loosen the cigarette to be tested and can drive the cigarette to be tested to rotate by 360 degrees. Then, the detection chuck among the prior art all is rigid contact between the cigarette with being surveyed when the centre gripping is surveyed a cigarette, easily produces the destruction to being surveyed a cigarette in the in-process to being surveyed a cigarette centre gripping, influences the outward appearance detection of cigarette.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a flexible cigarette rotation chuck, which can avoid damage to the cigarette when clamping the cigarette.

In order to achieve the purpose, the invention provides a flexible cigarette rotary chuck which comprises a fixed base, a chuck plate, two clamping pieces and an elastic element, wherein the chuck plate is rotatably supported on the fixed base, the two clamping pieces are rotatably arranged on the chuck plate, concave clamping surfaces are arranged on the clamping pieces, clamping cavities for clamping cigarettes are formed on the clamping surfaces of the two clamping pieces, and the elastic element is connected between the two clamping pieces.

Further, the elastic element is a spring.

Furthermore, the two elastic elements are symmetrically distributed on two sides of the clamping cavity.

The flexible cigarette rotary chuck further comprises a cam seat arranged on the fixed base, a driving cam rotatably sleeved on the cam seat, and a reset torsion spring, the chuck is rotatably sleeved on the cam seat, the chuck and the driving cam are arranged side by side along the axial direction of the cam seat, two ends of the reset torsion spring are respectively connected with the chuck and the driving cam, and a protrusion part is arranged on the clamping piece; when the driving cam rotates, the driving cam can abut against the protruding part on the clamping piece.

Furthermore, the flexible cigarette holder rotating chuck further comprises a switch driving source relatively fixed with the fixed base, a cam shifting lever driven to rotate by the switch driving source, and a switch shifting fork relatively fixed with the driving cam, wherein the cam shifting lever can be abutted to the switch shifting fork.

Furthermore, the switch driving source is a rotary electromagnet, and the cam deflector rod is fixed on an iron core of the rotary electromagnet.

Furthermore, the flexible cigarette rotary chuck further comprises a rotary driving source relatively fixed with the fixed base, a driving belt wheel driven to rotate by the rotary driving source, a driven belt wheel fixedly sleeved on the periphery of the chuck, and a conveying belt, wherein the driving belt wheel and the driven belt wheel are connected through the conveying belt.

Further, the rotary driving source is a motor, and the driving pulley is fixed on a motor shaft of the motor.

Furthermore, two rotating shafts are integrally extended from the chuck plate, and the two clamping pieces are respectively and rotatably mounted on the rotating shafts.

Furthermore, the flexible cigarette support rotating chuck further comprises a sensor relatively fixed with the fixed base, the chuck is provided with a sensed convex point, and the sensor can sense the sensed convex point.

As described above, the flexible cigarette rotary chuck according to the present invention has the following advantages:

in this application, when elastic element who connects between two clamping pieces makes clamping piece centre gripping cigarette, the clamping piece can gently contact a cigarette surface, realizes that the flexibility centre gripping cigarette props up, produces the cigarette and destroys when effectively avoiding the centre gripping cigarette to guarantee the degree of accuracy that a cigarette outward appearance detected.

Drawings

FIG. 1 is a schematic diagram of a flexible cigarette rotary chuck according to the present application.

Fig. 2 is a view showing a connection relationship between the chuck plate, the clamping piece, and the driving cam in fig. 1.

Description of the element reference numerals

1 fixed base

2 chuck

3 clamping piece

31 clamping surface

32 projection part

4 elastic element

5 cam seat

6 drive cam

7 reset torsion spring

8 switch driving source

9 cam deflector rod

10 switch shifting fork

11 rotary driving source

12 driving pulley

13 driven pulley

14 conveying belt

15 sensor

16 fixed mount

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be made without substantial technical changes and modifications.

As shown in fig. 1 and fig. 2, the present application provides a flexible cigarette rotary chuck, which includes a fixing frame 16, a fixing base 1 fixedly mounted on the fixing frame 16, a chuck 2 rotatably supported on the fixing base 1, two clamping pieces 3 rotatably mounted on the chuck 2, and an elastic element 4, wherein the two clamping pieces 3 are oppositely disposed, concave clamping surfaces 31 are respectively provided on opposite surfaces of the two clamping pieces 3, the clamping surfaces 31 of the two clamping pieces 3 form a clamping cavity for clamping a cigarette, and the elastic element 4 is connected between the two clamping pieces 3. The clamping device is used for clamping a cigarette needing appearance detection, and the cigarette is placed in the clamping cavity and clamped by the two clamping pieces 3; after the clamping piece 3 clamps a cigarette, the chuck plate 2 rotates 360 degrees, and then drives the clamping piece 3 and the cigarette clamped by the clamping piece 3 to rotate 360 degrees together, so that the cigarette appearance detection system generates a clear 360-degree image of the cigarette, and then the cigarette appearance detection is carried out. Particularly, the elastic element 4 connected between the two clamping pieces 3 ensures that the clamping pieces 3 can be in soft contact with the surfaces of cigarettes when the clamping pieces 3 clamp the cigarettes, so that the cigarettes are flexibly clamped, the cigarettes are effectively prevented from being damaged when the cigarettes are clamped, and the accuracy of cigarette appearance detection is ensured; in addition, the elastic element 4 can also adjust the size of the clamping cavity, can clamp cigarettes with different diameters and hardness, and can also avoid the situation that the cigarettes are damaged due to too tight clamping or cannot be driven to rotate by 360 degrees due to too loose clamping.

Preferably, as shown in fig. 1 and 2, the clamping surface 31 of each clamping piece 3 is semicircular, which can increase the contact area between the clamping surface 31 and the surface of the cigarette to ensure the clamping effect. Meanwhile, two elastic elements 4 are symmetrically distributed on two sides of the clamping cavity, so that two ends of the two clamping pieces 3 are respectively connected through one elastic element 4. The elastic element 4 is a spring, preferably a high-precision spring with the clamping force as small as possible is selected, so that the clamping piece 3 can be ensured to be in soft contact with the surface of the cigarette and can stably drive the cigarette to rotate by 360 degrees. In order to generate 360 degrees images of a cigarette accurately, a clamping cavity, a chuck plate 2 and a cigarette which are formed between two clamping pieces 3 are concentrically arranged, so that the synchronism of 360 degrees rotation of the cigarette driven by the chuck plate 2 is ensured.

Preferably, two rotating shafts are integrally extended upwards from the chuck 2, and the two clamping pieces 3 are respectively rotatably mounted on the rotating shafts, so that the clamping pieces 3 can be rotatably mounted on the chuck 2.

Further, the flexible cigarette holder rotating chuck is also provided with an opening and closing mechanism for opening or closing the two clamping pieces 3; the structure of the opening and closing mechanism is preferably: as shown in fig. 1 and 2, the flexible cigarette holder rotary chuck further comprises a cam seat 5 mounted on the fixed base 1, a driving cam 6 rotatably mounted on the upper portion of the cam seat 5, a return torsion spring 7, a switch driving source 8 fixed on the fixed frame 16, the switch driving source 8 is relatively fixed with the fixed base 1, the chuck plate 2 is rotatably sleeved on the lower portion of the cam seat 5, so that the chuck plate 2 and the driving cam 6 are arranged side by side along the axial direction of the cam seat 5, the driving cam 6 is positioned on the upper side of the chuck plate 2, the chuck plate 2 is rotatably supported on the chuck plate 2 of the fixed base 1 through the cam seat 5, the chuck plate 2 can rotate around the cam seat 5, two ends of the reset torsion spring 7 are respectively connected with the chuck plate 2 and the driving cam 6, and the clamping piece 3 is provided with a protruding portion 32. In the initial state, the reset torsion spring 7 makes the two clamping pieces 3 in a closed state, and the cam shift lever 9 is far away from the switch shift fork 10 and is not in contact with the switch shift fork 10. The switch driving source 8 acts to drive the cam 6 to rotate, and the cam shift lever 9 rotates anticlockwise in the views shown in fig. 1 and 2; then cam driving lever 9 and the switch shift fork 10 looks butt that is located its anticlockwise rotation direction side, and then promote switch shift fork 10 and drive cam 6 and rotate clockwise together, reset torsion spring 7 is in the energy storage state, drive cam 6 and the protruding portion 32 butt on the clamping piece 3, and then promote the clamping piece 3 and rotate, thereby drive two clamping pieces 3 and open, elastic element 4 is in the energy storage state, can put into the centre gripping chamber with the cigarette this moment, or realize that clamping piece 3 takes out the cigarette from the centre gripping chamber to the loosening of cigarette. After the cigarette is placed in the clamping cavity, the switch driving source 8 acts again to enable the cam deflector rod 9 to rotate clockwise to reset, the reset torsion spring 7 enables the driving cam 6 and the switch fork 10 to reset respectively, the elastic element 4 enables the two clamping pieces 3 to be closed, and in the process, the clamping pieces 3 are in soft contact with the surface of the cigarette and flexibly clamp the cigarette to clamp the cigarette. In the embodiment, the switch driving source 8 is a rotary electromagnet, and the cam deflector rod 9 is directly fixed on an iron core of the rotary electromagnet; in the initial state, the rotary electromagnet is in a power-off state; after the rotary electromagnet is electrified, the iron core of the rotary electromagnet rotates by an angle to drive the cam shifting lever 9 to rotate by an angle anticlockwise together, and further the switch shifting fork 10 is pushed to rotate by an angle clockwise; after the rotary electromagnet is powered off, the iron core of the rotary electromagnet resets to drive the cam deflector rod 9 to rotate clockwise by an angle and reset.

Further, the flexible smoke support rotary chuck is also provided with a rotary driving mechanism for driving the chuck 2 to rotate, and the structure of the rotary driving mechanism is preferably as follows: as shown in fig. 1 and 2, the flexible smoke supporting rotary chuck further includes a rotary driving source 11 fixed to the fixing frame 16, a driving pulley 12 driven to rotate by the rotary driving source 11, a driven pulley 13 fixedly sleeved on the outer periphery of the chuck 2, and a transmission belt 14, wherein the rotary driving source 11 is fixed relative to the fixing base 1, and the driving pulley 12 and the driven pulley 13 are connected by the transmission belt 14. The rotary driving source 11 is provided with a driving belt wheel 12 which rotates, the driving belt wheel 12 drives a driven belt wheel 13 and the chuck plate 2 to rotate together through a conveying belt 14, and the chuck plate 2 drives the reset torsion spring 7, the driving cam 6, the chuck plate 2 and the cigarettes clamped by the clamping pieces 3 to rotate together for 360 degrees; during 360 degrees of rotation, the switch fork 10 and the cam lever 9 do not contact. In this embodiment, the rotary driving source 11 is a motor, the driving pulley 12 is fixed on a motor shaft of the motor, and the motor rotates along with a driving phase signal sent to the control unit in the cigarette appearance detection system.

As shown in fig. 1 and 2, the flexible smoke support rotary chuck further comprises a sensor 15 fixed on the fixing frame 16, so that the sensor 15 is fixed relative to the fixing base 1; the chuck 2 is provided with an induced salient point; when the rotary driving mechanism drives the chuck 2 to rotate to a proper position, the sensor 15 can sense the sensed salient point, at the moment, the control unit in the cigarette appearance detection system controls the rotary driving source 11 to stop acting according to the signal of the sensor 15, and the chuck 2 stops rotating and is kept at the position; then the control unit in the cigarette appearance detection system controls the rotary electromagnet to be powered on or powered off, and the two clamping pieces 3 are closed or opened through the rotation of the reset torsion spring 7 and the driving cam 6 so as to clamp or loosen the cigarettes.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A flexible rotary tobacco holder chuck, comprising: including unable adjustment base (1), rotationally support in (2) of unable adjustment base (1), two clamping pieces (3) and elastic element (4) that all rotationally install in (2) of (2), concave clamping face (31) have on clamping piece (3), clamping face (31) of two clamping pieces (3) form the centre gripping chamber that is used for the centre gripping cigarette, elastic element (4) are connected between two clamping pieces (3).

2. The flexible cigarette rotary chuck according to claim 1, wherein: the elastic element (4) is a spring.

3. The flexible cigarette rotary chuck according to claim 1, wherein: the two elastic elements (4) are symmetrically distributed on two sides of the clamping cavity.

4. The flexible cigarette rotary chuck according to claim 1, wherein: the clamping device is characterized by further comprising a cam seat (5) arranged on the fixed base (1), a driving cam (6) rotatably sleeved on the cam seat (5), and a reset torsion spring (7), wherein the chuck (2) is rotatably sleeved on the cam seat (5), the chuck (2) and the driving cam (6) are arranged side by side along the axial direction of the cam seat (5), two ends of the reset torsion spring (7) are respectively connected with the chuck (2) and the driving cam (6), and a protruding part (32) is arranged on the clamping piece (3); when the driving cam (6) rotates, the driving cam (6) can be abutted against the protruding part (32) on the clamping piece (3).

5. The flexible cigarette rotary chuck according to claim 3, wherein: still include with unable adjustment base (1) relatively fixed switch driving source (8), by switch driving source (8) drive pivoted cam driving lever (9) and with drive cam (6) relatively fixed switch shift fork (10), cam driving lever (9) can with switch shift fork (10) looks butt.

6. The flexible cigarette rotary chuck according to claim 5, wherein: the switch driving source (8) is a rotary electromagnet, and the cam deflector rod (9) is fixed on an iron core of the rotary electromagnet.

7. The flexible cigarette rotary chuck according to claim 1, wherein: the chuck is characterized by further comprising a rotary driving source (11) relatively fixed with the fixed base (1), a driving pulley (12) driven to rotate by the rotary driving source (11), a driven pulley (13) fixedly sleeved on the periphery of the chuck (2), and a conveying belt (14), wherein the driving pulley (12) is connected with the driven pulley (13) through the conveying belt (14).

8. The flexible smoke rotary chuck according to claim 7 wherein: the rotary driving source (11) is a motor, and the driving belt wheel (12) is fixed on a motor shaft of the motor.

9. The flexible cigarette rotary chuck according to claim 1, wherein: two rotating shafts extend out of the chuck (2) integrally, and the two clamping pieces (3) are respectively and rotatably arranged on the rotating shafts.

10. The flexible cigarette rotary chuck according to claim 1, wherein: the fixture comprises a fixed base (1) and is characterized by further comprising a sensor (15) fixed relative to the fixed base (1), wherein a sensed convex point is arranged on the chuck (2), and the sensor (15) can sense the sensed convex point.