A test tobacco switching device suitable for use with a pipe conveying duct

Abstract

The utility model relates to tobacco processing equipment technical field, concretely relates to a kind of test tobacco thread switching device suitable for sending silk pipeline, install in main sending silk pipeline vertical section, including conveying path switching component and test tobacco thread guide component.Switching component realizes the opening or closure of main conveying path by rotatable sliding baffle, guide component realizes the auxiliary test tobacco thread guide by inclined material guide channel and spiral conveying structure, realizes the quick switching of test tobacco thread and normal tobacco thread path, improves operating efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of tobacco processing equipment, specifically to a test tobacco shred switching device suitable for tobacco feeding pipes. Background Technology

[0002] In modern cigarette manufacturing processes, the quality control of tobacco shreds plays a crucial role in the sensory performance and product consistency of finished cigarettes. To ensure stable quality, key processes in conventional production have generally achieved automation and continuous operation. In particular, during the tobacco processing and conveying stages, tobacco shreds can be stably transported to the cigarette-making section within a closed system, ensuring that the entire process is efficient and controllable.

[0003] However, during the tobacco processing, one or more batches of tobacco with abnormal characteristics may still be produced due to temporary equipment shutdowns, abnormal process parameters, fluctuations in raw material quality, or production trials. These abnormal tobaccos have significant deviations in physical structure, moisture content, or sensory properties and cannot be directly incorporated into the normal production line. They require separate sensory evaluation to determine their usability.

[0004] Because conventional cigarette production employs a highly automated, continuous process, it is difficult for tobacco shreds from outside the system to be directly connected to existing conveying pipelines and automatically integrated with the cigarette rolling machine. Therefore, the common practice in the industry is to manually bag abnormal batches of tobacco shreds and feed them into the cigarette rolling machine by hand for sample cigarette production, or to prepare cigarette samples by manually blowing out the tobacco to conduct sensory evaluation and analysis.

[0005] However, the aforementioned manual methods fail to utilize the standard pneumatic conveying and transport processes of the production line. Consequently, the rolling process differs significantly from actual production conditions in key parameters such as tobacco filling value, distribution uniformity, and moisture control. This often results in evaluations that deviate from the true sensory performance of the tobacco under large-scale production conditions, leading to insufficient accuracy and making it difficult to provide a reliable basis for decisions regarding tobacco retention or rejection.

[0006] This application is submitted in order to address the above issues. Utility Model Content

[0007] To address the problems in existing technologies, such as the difficulty in automatically connecting abnormal test batches of tobacco with the production conveying system, the disconnect between the evaluation method of test tobacco and actual production conditions, and the insufficient accuracy of the evaluation results, the purpose of this utility model is to provide a switching device that enables rapid connection of test tobacco to the production conveying pipeline. This device constructs a test tobacco feeding path that automatically connects with the original tobacco feeding system of the cigarette machine, ensuring that abnormal tobacco can be rolled according to the standard conveying process before evaluation. This improves the authenticity of sensory evaluation and the reliability of decision-making, reduces the interference of manual operation on the structure and moisture state of the tobacco, and ensures the consistency, efficiency, and scientific nature of the evaluation process.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A test tobacco switching device suitable for a tobacco feeding system is provided. It is installed at the vertical section of the inlet section of an existing tobacco feeding pipe. Specifically, after cutting off a section of the middle part of the original vertical pipe, the device is embedded in that position to achieve switching control between test tobacco and normal tobacco on the conveying path. The device includes:

[0010] A conveying path switching component is installed at the vertical section of the existing tobacco feeding pipe inlet. It includes a connecting structure 2, which connects the upper and lower sections of the main conveying pipe 1. The bottom of the connecting structure 2 is provided with a movable switching baffle 3. The switching baffle 3 includes a semi-circular groove structure 31 that cooperates with the inner wall of the main conveying pipe 1 and a plate-shaped structure 32 that is opposite to the semi-circular groove structure 31. The middle part has mating parts 33 on both sides that can be embedded in the annular groove 221 at the bottom of the connecting structure 2, so that it can rotate around the central axis in the annular groove 221 and slide in the direction toward or away from the main conveying pipe, thereby switching between the open state and the closed state to realize the connection or closure of the main conveying path, so as to control the switching of the conveying path of test tobacco and normal tobacco.

[0011] The test tobacco inlet assembly is located on the side of the connecting structure 2 and includes an inlet channel 4 that communicates with the main conveying path. The inlet channel 4 is provided with a movable control component 5, which is used to control the opening or closing of the inlet channel 4 and the main conveying path, thereby achieving selective inlet of test tobacco.

[0012] Preferably, the connecting structure 2 includes a wind-powered wire feeding tube 21 and an annular connecting frame 22 installed at its bottom, the annular connecting frame 22 being provided with an annular groove 221;

[0013] One end of the annular groove 221 surrounds the connection area between the main conveying pipe 1 and the pneumatic wire feeding pipe 21, and is used to connect and partially seal the two. The other end extends away from the connection area to accommodate the switching baffle 3, so that the switching baffle 3 can be inserted or rotated in the groove 221, thereby opening or closing the main conveying path.

[0014] Preferably, the mating part 33 is a pin, which is embedded in a guide rail structure provided on the inner wall of the annular groove 221; the guide rail structure is used to guide the switching baffle 3 to rotate around the axis with the mating part 33 as the rotation center, and slide along the annular groove 221 in a direction close to or away from the main conveying path; the sliding path of the switching baffle 3 is limited by the guide rail structure, and the pins on both sides of it serve as supporting components to realize the switching between the sliding state and the rotation state.

[0015] Preferably, the switching baffle 3 is a transverse baffle, comprising a semi-circular groove structure 31 and a plate structure 32 disposed opposite to each other;

[0016] The curvature of the semi-circular groove structure 31 matches the inner wall of the main conveying pipe 1 and the wind-powered wire feeding pipe 21, and the thickness of the plate structure 32 matches the unsealed gap at the interface between the main conveying pipe 1 and the wind-powered wire feeding pipe 21.

[0017] In the closed state, the switching baffle 3 rotates around its axis, causing the plate-shaped structure 32 to face the main conveying path. Then, it slides along the annular groove 221 and inserts into the gap at the interface between the main conveying pipe 1 and the pneumatic wire feeding pipe 21, thereby closing the main conveying path. In the open state, the switching baffle 3 rotates around its axis, causing the semi-circular groove-shaped structure 31 to face the main conveying path. Then, it slides along the annular groove 221 into the interface between the main conveying pipe 1 and the pneumatic wire feeding pipe 21, aligning the semi-circular groove-shaped structure 31 with the inner walls of the main conveying pipe 1 and the pneumatic wire feeding pipe 21, forming a continuous conveying channel.

[0018] Preferably, the inlet channel 4 includes a through hole 11 disposed on the side wall of the wind-powered wire feeding tube 21, and a semi-circular groove 42 communicating with the through hole 11;

[0019] The semi-circular trough 42 is a material guiding structure that is inclined downward. It is connected to the through hole 11 on the side wall of the wind-powered tobacco feeding tube 21 through the hollow connecting shell 43, and its outlet extends to the position of the through hole 11 or connects with the through hole 11, thereby forming a closed and continuous inlet path to assist the test tobacco shreds to be smoothly introduced into the main conveying path along the direction of gravity.

[0020] Preferably, the hollow connecting shell 43 is a cover structure with one open end. The open end covers the through hole 11 on the side wall of the wind-powered wire feeding tube 21, sealing and covering the area of ​​the through hole 11 to achieve the closure of the through hole 11. The remaining part is a closed design to form an independent hollow cavity. A guide hole is provided on the side opposite to the open end of the cover to connect with the semi-circular groove 42 to ensure the connectivity of the inlet channel.

[0021] Preferably, the hollow connecting shell 43 is provided with a vertical baffle-shaped control component 5 inside. The control component 5 can slide up and down in the vertical direction, and at least one end of it extends out of the hollow connecting shell 43 for easy manual operation. By sliding the control component 5 vertically, the opening or closing of the communication state between the through hole 11 and the semi-circular groove 42 can be realized, thereby controlling the opening and closing of the inlet channel 4.

[0022] Preferably, the semi-circular groove 42 is provided with a shafted spiral 44 inside, and its high side is connected to the stepper motor 6 through a coupling to drive the spiral 44 to rotate along the semi-circular groove 42, thereby pushing the test tobacco to be transported to the main conveying path.

[0023] The spiral body 44 is not supported by a bearing on the lower side, or is set in a free-end state to avoid obstructing the path of the test tobacco. Alternatively, a supporting bearing structure can be set on the lower side to enhance operational stability.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. This utility model, through the coordinated design of the rotatable sliding baffle and the annular groove of the conveying path switching component, can complete the closure / connection switching of the main path with only a single action, so that the test tobacco can be connected to the closed tobacco feeding pipe without manual intervention. This ensures that the tobacco undergoes a standard air conveying process before evaluation, and that the physical structure and moisture content remain consistent with normal production, thus completely solving the problem of tobacco state distortion caused by manual feeding.

[0026] 2. The test tobacco shreds are evenly transported to the main path through the inclined semi-circular groove and spiral of the inlet channel. The rolled cigarettes truly reproduce the sensory characteristics under large-scale production conditions, improving the reliability of the smoking evaluation results and providing a scientific basis for tobacco shred usability decisions.

[0027] 3. The baffle switching adopts a "rotation-sliding" dual-action mechanical structure, which has a short operation time and is much shorter than the traditional manual disassembly and assembly of pipes; the vertical sliding control component of the inlet channel realizes one-button on / off switching to avoid test tobacco residue;

[0028] In addition, the device can be directly embedded into the vertical section of the existing wire feeding pipe without modifying the main equipment of the production line, and is compatible with a variety of wind-powered wire feeding systems.

[0029] 4. In the closed state, the baffle's plate-like structure seals the gap at the pipe interface, completely isolating the normal airflow interference of tobacco delivery; in the open state, the semi-circular groove structure smoothly connects with the inner wall of the pipe, so that there is no sudden change in resistance when the tobacco passes through, and no loss of delivery efficiency. Attached Figure Description

[0030] Figure 1 This is a first axonometric view of the present utility device, which includes a switching baffle;

[0031] Figure 2 This is a first isometric view of the present utility model, excluding the switching baffle;

[0032] Figure 3 This is a second axonometric view of the device of this utility model;

[0033] Figure 4 A schematic diagram of the switch baffle opening state, in which the semi-circular groove structure 31 is aligned with the pipe;

[0034] Figure 5 A schematic diagram of the switch baffle in the closed state, where the plate-shaped structure 32 is a sealing interface;

[0035] Reference numerals: 1. Main conveying pipe; 2. Connecting structure; 21. Pneumatic wire feeding pipe; 22. Annular connecting frame; 221. Annular groove; 3. Switching baffle; 31. Semi-circular groove structure; 32. Plate structure; 33. Mating part; 4. Inlet channel; 42. Semi-circular groove; 43. Hollow connecting shell; 44. Shaft helix; 5. Control components; 6. Stepper motor. Detailed Implementation

[0036] To more clearly illustrate the structure and working principle of the cigarette stripping device of this utility model, the following description, in conjunction with the accompanying drawings and specific operating procedures, uses a typical embodiment to further illustrate this utility model. However, those skilled in the art should understand that this does not constitute a limitation on the scope of protection of this utility model.

[0037] Example 1

[0038] like Figures 1 to 3 As shown, a test tobacco switching device suitable for tobacco feeding pipes is installed in the middle section of the vertical section of the pipe at the inlet of the existing tobacco feeding system. It mainly includes two parts: a conveying path switching component and a test tobacco inlet component.

[0039] The conveying path switching component is used to connect and close the main conveying path, thereby controlling the path switching between test tobacco and normal tobacco in the feeding system, avoiding mixing, and maintaining a closed conveying state in the pipeline. It includes:

[0040] Main conveying pipeline 1, pneumatic wire feeding pipe 21 and connecting structure 2 between the two;

[0041] The connecting structure 2 includes an annular connecting frame 22, which has an annular groove 221 at its bottom;

[0042] The switching baffle 3 is a rotatable and sliding structure, with two mating parts 33 (shaft pin structure) on the bottom, which are embedded in the guide rail of the annular groove 221;

[0043] The switching baffle 3 has a semi-circular groove structure 31 and a plate-shaped structure 32, which can rotate around the shaft pin and slide along the annular groove, thereby switching between the open and closed states.

[0044] like Figure 4 As shown, in the open state, the semi-circular groove structure 31 is aligned with and connected to the inner wall of the main conveying pipe 1 and the wind-powered tobacco feeding pipe 21 to form a continuous channel for normal tobacco or test tobacco to pass through.

[0045] like Figure 5 As shown, in the closed state, the switching baffle 3 rotates to align the plate structure 32 with the main conveying path and insert it into the interface gap, closing the channel, blocking the main conveying path, and preventing normal tobacco from entering.

[0046] The test tobacco inlet assembly is located on the side wall of the connecting structure 2, and includes an inlet channel 4, a hollow connecting shell 43, and a control component 5.

[0047] The inlet channel 4 consists of a through hole 11 installed on the side wall of the wind-powered wire feeding pipe 21 and a semi-circular groove 42 connected thereto;

[0048] The semi-circular trough 42 is inclined along the direction of gravity. Its upper end is connected to the external test tobacco feeding port, and its lower end is connected to the through hole 11 of the wind-powered tobacco feeding pipe 21 through the hollow connecting shell 43, forming a closed inlet path.

[0049] The hollow connecting shell 43 is a cover structure with one end open, which is installed on the through hole 11. Inside it is a control component 5 that can slide up and down. It is a vertical baffle structure that can be manually operated to open or close the inlet channel.

[0050] The semi-circular groove 42 is equipped with a spiral 44, one end of which is connected to a stepper motor 6 via a coupling, driving the spiral 44 to rotate so as to transport the test tobacco shreds to the main conveying path.

[0051] The spiral 44 can be a free end or supported by a bearing on the lower side, and the configuration can be optimized according to the installation requirements and the efficiency of tobacco conveying.

[0052] The operating procedure is as follows:

[0053] (1) Rotate the switching baffle 3 to the closed state, and insert the plate structure 32 into the interface gap of the main conveying channel to block the normal tobacco path;

[0054] (2) The control component 5 is slid open, the inlet channel 4 is connected, the stepper motor 6 drives the spiral body 44 to rotate, and the test tobacco is slowly fed into the semi-circular groove 42 from the outside;

[0055] (3) The test tobacco falls into the pneumatic feeding pipe 21 through the through hole 11 and is connected to the original feeding system, and is transported to the cigarette machine by the pneumatic feeding system;

[0056] (4) After the test is completed, control component 5 closes the inlet channel, switch baffle 3 rotates and slides to the open state, restores the main conveying path connection, and normal tobacco shreds resume feeding.

[0057] In this embodiment, the switching baffle has a simple structure and stable operation. It achieves efficient switching through a dual action of "rotation-sliding" and has reliable sealing. The inlet component allows tobacco to be fed into the closed air delivery duct from the side, which has good sealing and stability. The overall structure is compact and can be directly embedded into the existing vertical section duct without affecting the main system structure and operating rhythm. It has strong adaptability and is easy to implement and maintain.

[0058] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this application; the dimensions described in the drawings and embodiments are not related to the specific physical object and are not used to limit the protection scope of this application. The physical dimensions can be selected and changed according to actual needs.

Claims

1. A test tobacco shred switching device suitable for tobacco feeding pipes, characterized in that, include: The conveying path switching component is set at the vertical section of the existing tobacco feeding pipe inlet and includes a connecting structure (2). The connecting structure (2) is used to connect the upper and lower sections of the main conveying pipe (1). The bottom of the connecting structure (2) is provided with a movable switching baffle (3). The switching baffle (3) includes a semi-circular groove structure (31) that cooperates with the inner wall of the main conveying pipe (1) and a plate structure (32) that is opposite to the semi-circular groove structure (31). The two sides of the middle part are provided with a mating part (33) that can be embedded in the bottom annular groove (221) of the connecting structure (2), so that it can rotate around the central axis in the annular groove (221) and slide in the direction toward or away from the main conveying pipe, thereby switching between the open state and the closed state, realizing the connection or closure of the main conveying path, so as to control the switching of the conveying path of the test tobacco and the normal tobacco. The test tobacco inlet assembly is located on the side of the connecting structure (2) and includes an inlet channel (4) connected to the main conveying path. The inlet channel (4) is provided with a movable control component (5) for controlling the opening or closing of the inlet channel (4) and the main conveying path, thereby realizing the selective inlet of test tobacco.

2. The experimental tobacco switching device according to claim 1, characterized in that, The connecting structure (2) includes a wind-powered wire feeding tube (21) and an annular connecting frame (22) installed at its bottom. The annular connecting frame (22) is provided with an annular groove (221). One end of the annular groove (221) surrounds the connection area between the main conveying pipe (1) and the wind-powered wire feeding pipe (21) to achieve the connection and partial sealing of the two. The other end extends away from the connection area to accommodate the switching baffle (3), so that the switching baffle (3) can be inserted or rotated in the groove (221) to achieve the opening or closing of the main conveying path.

3. The experimental tobacco switching device according to claim 1, characterized in that, The mating part (33) is a shaft pin, which is embedded in the guide rail structure provided on the inner wall of the annular groove (221). The guide rail structure is used to guide the switching baffle (3) to rotate around the axis with the mating part (33) as the rotation center, and slide along the annular groove (221) in a direction close to or away from the main conveying path. The sliding path of the switching baffle (3) is limited by the guide rail structure, and the shaft pins on both sides serve as supporting components to realize the switching between the sliding state and the rotation state.

4. The experimental tobacco switching device according to claim 2, characterized in that, The switching baffle (3) is a horizontal baffle, including a semi-circular groove structure (31) and a plate structure (32) arranged opposite to each other. The curvature of the semi-circular groove structure (31) matches the inner wall of the main conveying pipe (1) and the wind-powered wire feeding pipe (21), and the thickness of the plate structure (32) matches the unsealed gap at the interface between the main conveying pipe (1) and the wind-powered wire feeding pipe (21). In the closed state, the switching baffle (3) rotates around its axis, so that the plate-shaped structure (32) faces the main conveying path, and then slides along the annular groove (221) and inserts into the gap at the interface between the main conveying pipe (1) and the pneumatic wire feeding pipe (21), thereby closing the main conveying path; In the open state, the switching baffle (3) rotates around its axis, so that the semi-circular groove structure (31) faces the main conveying path, and then slides along the annular groove (221) into the interface between the main conveying pipe (1) and the pneumatic wire feeding pipe (21), so that the semi-circular groove structure (31) is aligned with the inner wall of the main conveying pipe (1) and the pneumatic wire feeding pipe (21), forming a continuous conveying channel.

5. The experimental tobacco switching device according to claim 2, characterized in that, The inlet channel (4) includes a through hole (11) provided on the side wall of the wind-powered wire feeding pipe (21) and a semi-circular groove (42) communicating with the through hole (11). The semi-circular trough (42) is a material guiding structure that is inclined downward. It is connected to the through hole (11) on the side wall of the wind-powered tobacco feeding pipe (21) through the hollow connecting shell (43), and its outlet extends to the position of the through hole (11) or connects with the through hole (11), thereby forming a closed and continuous introductory path to assist the test tobacco in being smoothly introduced into the main conveying path along the direction of gravity.

6. The experimental tobacco switching device according to claim 5, characterized in that, The hollow connecting shell (43) is a cover structure with one open end. The open end covers the through hole (11) on the side wall of the wind-powered wire feeding tube (21), sealing and covering the through hole (11) area to achieve the closure of the through hole (11). The rest is a closed design, forming an independent hollow cavity. A guide hole connected to the semi-circular groove (42) is provided on the side opposite to the open end of the cover to ensure the connection of the inlet channel.

7. The experimental tobacco switching device according to claim 5, characterized in that, The hollow connecting shell (43) is provided with a vertical baffle-shaped control component (5). The control component (5) can slide up and down in the vertical direction, and at least one end of it extends out of the hollow connecting shell (43) for easy manual operation. By sliding the control component (5) vertically, the opening or closing of the communication state between the through hole (11) and the semi-circular groove (42) can be realized, thereby controlling the opening and closing of the inlet channel (4).

8. The experimental tobacco switching device according to claim 5, characterized in that, The semi-circular groove (42) is equipped with a shafted spiral (44), and its high side is connected to a stepper motor (6) through a coupling to drive the spiral (44) to rotate along the semi-circular groove (42), thereby pushing the test tobacco to be transported to the main conveying path.

Images