Tobacco shred quantitative continuous weighing and transferring mechanism

Abstract

The utility model provides a quantitative continuous weighing and transferring mechanism for tobacco shreds. The quantitative continuous weighing and transferring mechanism comprises a weighing assembly, a weighing tray, a rotating bracket, a lifting driving assembly and a translation driving assembly, a weighing platform is arranged at the top end of the weighing assembly, and the weighing tray is in a portal shape and is movably placed on the weighing platform. The rotary bracket comprises a bracket body, a positioning pin and a rotary driving mechanism, the bracket body is used for supporting the weighing tray, the positioning pin is fixed to one side of the bracket body, and a pin hole corresponding to the positioning pin is formed in the weighing tray; the lifting driving assembly is arranged on one side of the weighing assembly, and the rotation driving mechanism is installed at the moving end of the lifting driving assembly; the translation driving assembly is arranged below the lifting driving assembly, and a main body of the lifting driving assembly is installed at the moving end of the translation driving assembly. The quantitative and continuous tobacco shred weighing and transferring mechanism has the advantages of quantitative and accurate weighing and continuous tobacco shred transferring.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette preparation, in particular to a quantitative continuous weighing and transferring mechanism for shredded tobacco. Background Art

[0002] In the research work on cigarettes, the cigarette tube maker is a commonly used device. Its function is to fill the prepared scattered tobacco into the cigarette tube to make it into a cigarette shape, so as to facilitate the application in the subsequent smoking parameters, smoke analysis and taste analysis work.

[0003] At present, mainstream cigarette empty tube maker products are insufficient in their ability to process quantitative tobacco.

[0004] For example, in the patent proposal with application number CN202410267298.6 and title: A multi-specification tobacco automatic filling device, a structure with weighing and tobacco transfer is designed, in which the flipping mechanism carrying the tobacco is offset on one side of the weighing component to achieve continuous weighing.

[0005] This design can prevent the weighing component from interfering with the action of the flipping mechanism, but the offset design can easily lead to an unstable center of gravity of the weighing component and deviation in the weighing results.

[0006] The amount of tobacco required for a single cigarette is very small, and it is highly sensitive to weighing. This offset structure is not conducive to improving weighing accuracy.

[0007] Therefore, in order to improve the weighing accuracy without hindering the continuous transfer of tobacco, it is urgent to design a new structure to solve this problem.

[0008] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0009] The utility model aims to address the deficiencies of the prior art and thus provide a tobacco quantitative continuous weighing and transferring mechanism which can quantitatively and accurately weigh and continuously transfer tobacco.

[0010] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a tobacco quantitative continuous weighing and transferring mechanism, including a weighing component, a weighing tray, a rotating bracket, a lifting drive component and a translation drive component;

[0011] The top of the weighing assembly is a weighing platform, the weighing tray is in the shape of a door frame, and the weighing tray is movably placed on the weighing platform;

[0012] The rotating bracket includes a bracket, a positioning pin and a rotating driving mechanism, the bracket is used to be inserted into the inner side of the weighing tray to lift the weighing tray, the positioning pin is fixed to one side of the bracket, a pin hole is provided on the weighing tray corresponding to the positioning pin, the middle section of the positioning pin passes through the pin hole and has a diameter smaller than the diameter of the pin hole, and both ends of the positioning pin are provided with a stop structure to prevent the positioning pin from being disengaged from the pin hole;

[0013] The lifting drive assembly is arranged on one side of the weighing assembly, and the rotating drive mechanism is installed on the moving end of the lifting drive assembly;

[0014] The translation drive assembly is arranged below the lifting drive assembly, and the main body of the lifting drive assembly is installed on the moving end of the translation drive assembly.

[0015] Based on the above, a bucket-shaped wire receiving trough extending downward is provided in the central area of ​​the weighing tray, so that the cross-section of the weighing tray is in an "M" shape, and the bracket is correspondingly arranged in a U shape to form two arms, and the two arms of the bracket are supported on both sides below the bucket-shaped wire receiving trough of the weighing tray.

[0016] Based on the above, at least two positioning pins are provided, and the two positioning pins are provided on the rear support arm of the bracket. When the bracket is rotated to unload, the rear support arm rotates higher than the front support arm.

[0017] Based on the above, the bottom end of the positioning pin is the end cap, the middle part is the column, and the top end is the screw. The top screw is connected to the column through a gasket to form a structure with the smallest diameter at the column and increased diameters at both ends; the end cap is welded and fixed to the bracket.

[0018] Based on the above, the rotation driving mechanism is a swing cylinder.

[0019] Based on the above, the lifting drive assembly includes a vertically arranged slide cylinder, and the rotation drive mechanism is installed on the moving end of the slide cylinder through a right-angle bracket.

[0020] Based on the above, the translation drive assembly includes a horizontally sliding linear slide device.

[0021] Based on the above, the translation drive assembly, the lifting drive assembly and the rotating bracket are perpendicular to each other in different planes.

[0022] Based on the above, a feed guide hopper is provided at the end point of the travel of the translation drive assembly at a height corresponding to the rotating bracket, and the feed guide hopper is a vertical channel with a flared top and a gradually narrowed bottom.

[0023] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0024] 1. The weighing tray is set on the square of the weighing component, which is within the normal load-bearing range of weighing. There will be no eccentricity problem that affects the accuracy, making the weighing accuracy higher; moreover, the weighing tray and the rotating bracket are transferred by lifting and prevented from separating from each other by positioning pins, while not affecting the continuous cycle of tobacco weighing, transfer, return, weighing, transfer...

[0025] 2. The weighing tray is provided with lifting, translation and flipping mechanisms so that the weighed tobacco can be efficiently transferred from the weighing platform to the next workstation, which meets the objective factor that the weighing component needs to be set under the weighing tray without affecting the execution of the two steps.

[0026] The whole set of equipment effectively achieves the coordination between the independence and high precision of weighing and the high efficiency of tobacco transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the quantitative continuous weighing and transferring mechanism of shredded tobacco in the utility model.

[0028] Figure 2 The utility model is a structural schematic diagram of the quantitative continuous weighing and transferring mechanism of cut tobacco without the weighing component.

[0029] Figure 3 It is a structural schematic diagram of the cooperation between the weighing tray and the bracket in the utility model.

[0030] Figure 4 It is a schematic diagram of the exploded state structure of the weighing tray and the bracket in the utility model.

[0031] In the figure: 1. Weighing assembly; 2. Weighing tray; 3. Rotating bracket; 4. Lifting drive assembly; 5. Translation drive assembly; 6. Feed guide hopper; 21. Bucket-shaped wire trough; 22. Pin hole; 31. Bracket; 32. Positioning pin; 33. Rotating drive mechanism; 34. Gasket; 35. Screw; 36. Block. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0033] like Figure 1-Figure 4 As shown, a tobacco quantitative continuous weighing and transferring mechanism comprises a weighing component 1, a weighing tray 2, a rotating bracket 3, a lifting drive component 4 and a translation drive component 5.

[0034] The top of the weighing component 1 is a weighing platform. In this embodiment, an electronic weighing device, such as an electronic scale, an electronic balance, or other high-precision weighing component, is used. The weighing plane on the top is designed to be relatively flat and large to facilitate the placement of the weighing tray 2.

[0035] The weighing tray 2 is in the shape of a gantry and is movably placed on the weighing platform. In this embodiment, a bucket-shaped wire holding trough 21 extending downward is provided in the central area of ​​the weighing tray 2, so that the cross-section of the weighing tray 2 is in an "M" shape. The middle bucket-shaped wire holding trough 21 is used to store tobacco shreds, and the areas on both sides of the bucket-shaped wire holding trough 21 are used to cooperate with the rotating bracket 3. The supporting part of the bucket-shaped wire holding trough 21 is provided with a pin hole 22.

[0036] The rotating bracket 3 includes a bracket 31 , a positioning pin 32 and a rotating driving mechanism 33 . The bracket 31 is used to be inserted into the inner side and lower side of the weighing tray 2 so as to lift the weighing tray.

[0037] In this embodiment, the bracket 31 is correspondingly configured to be U-shaped to form two arms, and the two arms of the bracket 31 are supported on both sides below the bucket-shaped wire receiving groove 21 of the weighing tray.

[0038] In this embodiment, at least two positioning pins 32 are provided. Specifically, in this embodiment, two positioning pins 32 are provided on the rear support arm of the bracket. When the bracket 31 rotates to unload, the rear support arm rotates higher than the front support arm.

[0039] A pin hole 22 is provided on the weighing tray 2 corresponding to the locating pin 32, the middle section of the locating pin 32 passes through the pin hole 22 and has a diameter smaller than the diameter of the pin hole 22, and stop structures are provided at both ends of the locating pin 32 to prevent it from being detached from the pin hole 22; specifically, in this embodiment, the bottom end of the locating pin 32 is an end cap, the middle part is a column, and the top end is a screw 35, and the screw 35 at the top end is connected to the column through a gasket 34 to form a structure with the smallest diameter at the column and increased diameters at both ends, and the end cap is welded and fixed to the bracket so that the bracket 31 and the end cap form an integrated structure.

[0040] In a preferred embodiment, Figure 3 and Figure 4 As shown, in order to prevent the bottom end of the positioning pin 32 from being too large and too high after the positioning pin 32 is lifted, resulting in a large tilt angle after the weighing tray 2 is lifted in a non-rotating state, a cushion block 36 for compensating the height difference can be provided on the support arm on the other side, so that the weighing tray 2 has no tilt angle after being lifted in a non-rotating state, or the tilt angle is controlled within a smaller range to prevent tobacco from leaking.

[0041] The rotary drive mechanism 33 is a swing cylinder in this embodiment, and in other embodiments, a rotary drive motor can also be used to implement it.

[0042] The lifting drive assembly 4 is arranged on one side of the weighing assembly 1, and the rotating drive mechanism 33 is installed on the moving end of the lifting drive assembly 4. In this embodiment, the lifting drive assembly 4 includes a vertically arranged slide cylinder, and the rotating drive mechanism 33 is installed on the moving end of the slide cylinder through a right-angle bracket 41.

[0043] In other embodiments, the lifting drive assembly 4 may also adopt common linear motion mechanisms such as a linear motor and a screw mechanism.

[0044] The translation drive assembly 5 is arranged below the lifting drive assembly 4, and the main body of the lifting drive assembly 4 is installed at the moving end of the translation drive assembly. In this embodiment, the translation drive assembly 5 includes a horizontally sliding linear slide device. In other embodiments, conventional linear motion mechanisms such as electric screws can also be used.

[0045] The translation drive assembly 5, the lifting drive assembly 4 and the rotating bracket 3 are perpendicular to each other in different planes. The translation drive assembly 5 is used for transferring the position of the material, the lifting drive assembly is used for lifting the weighing tray 2 to the weighing platform, and the rotating bracket 3 is used for rotating the weighing tray 2 to pour out the tobacco.

[0046] A feed guide hopper 6 is provided at the end of the travel of the translation drive assembly 5 at a height corresponding to the rotating bracket 3. The feed guide hopper 6 is a vertical channel with a flared top and a gradually narrowed bottom, and is used to guide the received tobacco to the next workstation.

[0047] Working principle description:

[0048] In the weighing state, the lifting height of the lifting drive assembly 4 is controlled to make the rotating bracket 3 drop to a certain height. The overall thickness of the rotating bracket 3 is less than the height of the weighing tray 2. At this time, the weighing tray 2 does not contact the rotating bracket 3 and the positioning pin 32. The overall weight of the weighing tray 2 can act on the upper end of the weighing assembly 1, thereby achieving high-precision weighing.

[0049] After weighing is completed, the lifting drive assembly 4 is controlled to increase in height, and as the bracket 31 is lifted, the entire weighing tray 2 is lifted horizontally and separated from the weighing assembly 1 .

[0050] Then control the translation drive assembly 5 to translate toward the feed guide hopper 6. After the translation is in place, drive the rotary drive mechanism 33 to rotate to a set angle, generally close to 90°, to pour the tobacco into the feed guide hopper 6. Drive the rotary drive mechanism 33 back to a horizontal state, and control the translation drive assembly 5 and the lifting drive assembly 4 to operate in turn, and finally return the weighing tray 2 to its position.

[0051] During the process of flipping and dumping the tobacco, the positioning pin 32 prevents the weighing tray 2 from separating from the rotating bracket 3. The upper end diameter of the positioning pin 32 is larger than the pin hole diameter, so that the weighing tray 2 will not fall naturally. During the process of rotating to a horizontal position, due to the design of the M-shaped structure, the supporting part below the weighing tray 2 and the U-shaped bracket 31 can return to their original position adaptively.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A tobacco quantitative continuous weighing and transfer mechanism, characterized in that: It includes a weighing assembly, a weighing tray, a rotating bracket, a lifting drive assembly and a translation drive assembly; The top of the weighing assembly is a weighing platform, the weighing tray is in the shape of a door frame, and the weighing tray is movably placed on the weighing platform; The rotating bracket includes a bracket, a positioning pin and a rotating driving mechanism, the bracket is used to be inserted into the inner side of the weighing tray to lift the weighing tray, the positioning pin is fixed to one side of the bracket, a pin hole is provided on the weighing tray corresponding to the positioning pin, the middle section of the positioning pin passes through the pin hole and has a diameter smaller than the diameter of the pin hole, and both ends of the positioning pin are provided with a stop structure to prevent the positioning pin from being disengaged from the pin hole; The lifting drive assembly is arranged on one side of the weighing assembly, and the rotating drive mechanism is installed on the moving end of the lifting drive assembly; The translation drive assembly is arranged below the lifting drive assembly, and the main body of the lifting drive assembly is installed on the moving end of the translation drive assembly.

2. The tobacco quantitative continuous weighing and transferring mechanism according to claim 1 is characterized in that: A bucket-shaped wire-receiving trough extending downward is arranged in the central area of ​​the weighing tray, so that the cross-section of the weighing tray is in an "M" shape, and the bracket is correspondingly arranged in a U shape to form two arms, and the two arms of the bracket are supported on both sides below the bucket-shaped wire-receiving trough of the weighing tray.

3. The tobacco quantitative continuous weighing and transferring mechanism according to claim 2 is characterized in that: At least two positioning pins are provided, and the two positioning pins are provided on the rear support arm of the bracket. When the bracket is rotated to unload, the rear support arm rotates higher than the front support arm.

4. The tobacco quantitative continuous weighing and transferring mechanism according to claim 3 is characterized in that: The bottom end of the positioning pin is a terminal, the middle part is a column, and the top end is a screw. The top screw is connected to the column through a gasket to form a structure with the smallest diameter at the column and increased diameters at both ends; the terminal is welded and fixed to the bracket.

5. The tobacco shreds quantitative continuous weighing and transferring mechanism according to any one of claims 1 to 4, characterized in that: The rotary drive mechanism is a swing cylinder.

6. The tobacco quantitative continuous weighing and transferring mechanism according to claim 5, characterized in that: The lifting drive assembly includes a vertically arranged slide cylinder, and the rotation drive mechanism is installed on the moving end of the slide cylinder through a right-angle bracket.

7. The tobacco quantitative continuous weighing and transferring mechanism according to claim 6 is characterized in that: The translation drive assembly includes a horizontally sliding linear slide device.

8. The tobacco quantitative continuous weighing and transferring mechanism according to claim 1 or 2 or 3 or 4 or 6 or 7, characterized in that: The translation drive assembly, the lifting drive assembly and the rotating bracket are perpendicular to each other in different planes.

9. The tobacco shreds quantitative continuous weighing and transferring mechanism according to claim 8, characterized in that: A feed guide hopper is provided at the end point of the travel of the translation drive assembly at a height corresponding to the rotating bracket. The feed guide hopper is a vertical channel with an expanded opening at the top and a gradually narrowed opening at the bottom.

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