A smoke box damper
By designing a damper for the smoke box and utilizing a combination of springs and damping wheels, the problem of positional deviation of the smoke box during inertial retraction was solved, enabling automatic stopping, improving production efficiency, and reducing the need for manual intervention.
Patent Information
- Application Number
- CN202522082589.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-28
AI Technical Summary
In tobacco production, when cigarette boxes exit the tipping and loosening machine, they are prone to veer off the track due to inertia, requiring manual correction, which wastes manpower and poses safety hazards.
Design a tobacco box damper that uses a combination of spring, damping wheel, telescopic plate and connecting fixed shaft to achieve unidirectional damping effect, so that the tobacco box stops at a designated position when it retracts due to inertia, avoiding manual correction.
It improved production efficiency, reduced labor intensity, ensured that the cigarette boxes accurately stopped in the designated position, and avoided manual intervention.
Smart Images
Figure CN224679983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco processing, and more specifically to a tobacco box damper. Background Technology
[0002] In the modern cigarette manufacturing process at Runye, the tobacco processing stage largely employs vacuum rehydration as the first step. The tobacco leaves are placed in stainless steel boxes and subjected to vacuum treatment. The treated tobacco leaves typically have relatively high temperature and humidity, making them prone to clumping and accumulating. To loosen the tobacco leaves sufficiently, they need to enter a turning and loosening machine for further loosening. The tobacco boxes then enter the turning and loosening machine, and after turning, they exit. Furthermore, the tobacco industry commonly uses chain conveyor tracks to transport the tobacco boxes, relying primarily on sensors and algorithms for positioning and stopping. However, due to inertia, some boxes often veer off the designated track when exiting the turning and loosening machine. Because of their long service life, the chains wear differently in various parts, making it difficult to adjust the program to ensure accurate stopping at the designated position. Since the chains are not yet at the point of replacement, operators at each stage occasionally need to manually push the boxes to correct their position. This process is not only wasteful of manpower but also poses certain safety hazards.
[0003] To address the above problems, this utility model is proposed. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a cigarette box damper, which aims to prevent the stainless steel cigarette box from excessively retracting due to inertia when it has been flipped over and returned to a designated position, thus keeping it in the designated position without requiring manual correction.
[0005] To achieve the above objectives, this utility model provides a novel cigarette box damper, which includes: a damping frame 1, a bracket, a spring 3, a telescopic plate 4, a damping wheel 5, a fixed shaft 6, a connecting large shaft 9, and a limiting small shaft 8;
[0006] The damping frame 1 is located on the outermost side;
[0007] The bracket is installed inside the damping frame 1, and the top of the bracket is an "I"-shaped structural plate;
[0008] The spring 3 is disposed on the I-shaped structural plate of the bracket;
[0009] There are two telescopic pieces 4, which are vertically arranged inside the spring 3, and the two telescopic pieces 4 are respectively arranged in the notches on both sides of the "I"-shaped structure plate of the bracket;
[0010] The telescopic piece 4 has a first hole and a second hole from top to bottom;
[0011] The damping wheel 5 has a front wheel 5-1 and a rear wheel 5-2, and the front wheel 5-1 and the rear wheel 5-2 are designed with fixing plates on both sides to connect the two wheels;
[0012] The fixed shaft 6 passes through the first hole at the top of the front wheel 5-1 and the two telescopic plates 4 to achieve the connection between the front wheel 5-1 and the two telescopic plates 4;
[0013] The connecting axle 9 passes through the rear wheel 5-2 and is fixed to the damping frame 1, so that the rear wheel 5-2 is fixed in position and rotates only around its own center.
[0014] The limiting shaft 8 is inserted through the second hole of the telescopic piece 4, and both ends of the limiting shaft 8 are blocked by the spring 3;
[0015] The length of the limiting small shaft 8 is B1, the length of the connecting large shaft 9 is B2, and the width of the top notch of the damping frame 1 is C, with the dimensional relationship B1 > C > B2, so that the front wheel 5-1 can rotate around its own center and move up and down within a certain range.
[0016] Preferably, the back of the damping frame 1 is provided with vertically arranged elongated slots for connecting, fixing and adjusting the installation position of the damping frame 1.
[0017] Preferably, the support is a tripod 2, the top surface of the tripod 2 is an "I" structure, the front and back are triangular structures, and a through hole for assembly with the damping frame 1 is provided at the center of the triangular structure.
[0018] Preferably, the front wheel 5-1 and the rear wheel 5-2 are bearings.
[0019] Preferably, a butterfly clip is used to achieve hole-shaft fit between the first hole of the telescopic piece 4 and the fixed shaft 6.
[0020] Preferably, the connecting axle 9 and the rear wheel 5-2 are fixedly engaged by a butterfly clip.
[0021] Preferably, a butterfly clip is used to achieve hole-shaft fit between the second hole of the telescopic piece 4 and the limiting shaft 8.
[0022] In this application, when the front wheel 5-1 is not under force, when the front wheel 5-1 is in the first position, the spring 3 is in the initial state, part of the structure of the front wheel 5-1 and the fixed shaft 6 are exposed above the top notch of the damping frame 1, and the limiting shaft 8 is below the top notch of the damping frame 1.
[0023] When the front wheel 5-1 is under force, and the front wheel 5-1 is in the second position, the spring 3 is compressed by the limiting shaft 8, the top of the front wheel 5-1 is flush with the top notch of the damping frame 1, and the fixed shaft 6 is located below the top notch of the damping frame 1.
[0024] Compared with the prior art, the present invention has the following beneficial effects:
[0025] This utility model describes a novel tobacco box damper that, through the combined action of a spring, damping wheel, telescopic plate, and various connecting and fixed shafts, achieves a one-way damping effect similar to that of a one-way valve. When the tobacco box enters the tipping and unloading machine in the forward direction, the damping wheel moves downward under force, allowing the tobacco box to pass smoothly. Subsequently, when the tobacco box exits the tipping and unloading machine after completing the tipping operation, the damper intercepts the tobacco box that has excessively retreated due to inertia, keeping it in the correct position. This avoids manual position correction, improves production efficiency, and reduces labor intensity. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of a novel smoke box damper according to the present invention;
[0027] Figure 2 This is a schematic diagram of the damping frame structure of a novel smoke box damper according to this utility model;
[0028] Figure 3 This is a schematic diagram of the damping core component structure of a novel smoke box damper according to this utility model.
[0029] List of reference numerals in the attached diagram:
[0030] 1. Damping frame, 2. Tripod, 3. Spring, 4. Telescopic plate, 5. Damping wheel, 5-1. Front wheel, 5-2. Rear wheel, 6. Fixed shaft, 7. Butterfly clip, 8. Limiting small shaft, 9. Connecting large shaft, C. Width of the top notch of the damping frame, B1. Length of the limiting small shaft, B2. Length of the connecting shaft. Detailed Implementation
[0031] The present invention will be further described in detail below with reference to the embodiments.
[0032] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the present invention. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in the literature in the field or according to the product instructions. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.
[0033] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the word “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” to another element, it can be directly connected to the other element, or there may be an intermediate element. Furthermore, the term “connected” as used herein can include wireless connections.
[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "inner", "upper", "lower", etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.
[0037] Figure 1 This is a schematic diagram of a novel smoke box damper according to this utility model. Figure 1 As shown, the main structure of the device includes: a damping frame 1, a tripod 2, a spring 3, a telescopic plate 4, a damping wheel 5, a fixed shaft 6, a butterfly clip 7, a connecting large shaft 9, and a limiting small shaft 8.
[0038] The damping frame 1 serves as the basic structure of the device, playing a role in fixing and connecting. It is made of 45# steel and is located at the outermost end of the device, enclosing the other components.
[0039] Tripod 2 is fixed to the center hole of the damping frame 1 using screws, nuts, and washers. The top view of tripod 2 presents an "I" shape, with blank notches on both sides designed to allow the telescopic plate 2 to move up and down; its sides are triangular structures with a through hole in the center, which is the same size as the through hole on the back plate of the damping frame 1, and is secured by long screws, washers, and nuts.
[0040] Spring 3 is mounted on the "I"-shaped structural plate of tripod 2.
[0041] The telescopic plate 4 is located inside the spring 3, and two telescopic plates 4 are respectively located in the blank notches on both sides of the "I"-shaped structure plate of the tripod 2. The upper end of the telescopic plate 2 is designed with two through holes of diameter A, which are the first hole and the second hole from top to bottom. The first hole at the top of the telescopic plate 2 is connected to the front wheel 5-1 of the damping wheel 5 through the cooperation of the butterfly clip and the fixed shaft 6, so as to achieve connection and fixation. The second hole of the telescopic plate 2 is connected to the limiting small shaft 8 through the butterfly clip. The shaft diameter of the limiting small shaft 8 and the fixed shaft 6 is A, but the length B1 of the limiting small shaft is longer than the length B2 of the fixed shaft 6, and is also slightly longer than the width C of the notch at the top of the damping frame 1, satisfying B1>C>B2. The rear wheel 5-2 of the damping wheel 5 is fixed to the connecting large shaft 9 through the butterfly clip. The two ends of the connecting large shaft 9 are also connected and fixed to the holes on the damping frame 1 through the butterfly clip, and the basic fit dimension of the hole and shaft is A.
[0042] The rear wheel 5-2 of the damping wheel 5 is fixed to the damping frame 1 via the connecting axle 9, thus maintaining its spatial position. The front wheel 5-1, through the cooperation of the spring 3 and the telescopic plate 2, moves in an arc-shaped trajectory with the rear wheel 5-2 as the center of motion under the action of external force. Due to its structural design characteristics, the direction of the external force for the arc-shaped trajectory of the damping wheel 2 is unidirectional. That is, it will only move when it is subjected to an external force that points from the horizontal direction of the normal of the rear wheel 5-2 to the direction of the normal of the front wheel 5-1. If the direction of the force is opposite, the damping wheel 2 will remain stationary.
[0043] The limiting shaft 8 contacts and is blocked by the spring 3 below. In other words, the width of the spring 3 is greater than the length B1 of the limiting shaft 8. Because the length B1 of the limiting shaft 8 is greater than the width C of the top notch of the damping frame 1, it ensures that the limiting shaft 8 and the spring 3 below it cannot pass through the top notch of the damping frame 1. Due to the cooperation between the various components, it also has a limiting effect on the spring 3, the telescopic plate 2, and the damping wheel 5.
[0044] Figure 2 This is a schematic diagram of the damping frame structure of a novel smoke box damper according to this utility model. Figure 2As shown, the damping frame 1 has a triangular shape, providing a stable load-bearing structure capable of withstanding significant impact forces. The back of the damping frame 1 features four vertically arranged elongated slots of identical shape and size for fixing the damper to the smoke box conveyor rail and adjusting its installation position. The center of the back panel of the damping frame 1 also has a through hole for assembly with the tripod 2.
[0045] Figure 3 This is a schematic diagram of the damping core component structure of a novel smoke box damper according to this utility model. Figure 3 As shown, the top surface of the tripod 2 has an "I" shape, with two stable triangles on both sides and a through hole in the center to facilitate fixing the tripod 2 to the damping frame 1.
[0046] Depend on Figure 1 , Figure 2 , Figure 3 As can be seen, when the tobacco box enters the tipping and unloading machine from the conveyor track via the damper, the front wheel 5-1 of the damping wheel 5, which is the part that protrudes above the damping frame 1, first contacts and is subjected to force. Finally, under the action of force, it moves downward with the connecting shaft 9 as the center of motion. At this time, the telescopic plate 4 and the limiting shaft 8, which are fixed to the front end of the damping wheel 5, move downward together, and the part of the telescopic plate 4 that is pressed down moves downward through the "I"-shaped notch on the tripod 2. The limiting shaft 8 moves downward until it contacts the spring 3 and compresses it until the front wheel 5-1 of the damping wheel 5 is exactly flush with the top of the damping frame 1, so as to ensure that the tobacco box passes through the damper without obstruction. After the rear end of the cigarette box leaves the damper 5, the elastic potential energy accumulated by the compression of the spring 3 is released, which will drive the telescopic plate 4, the limiting shaft 8, and the damping wheel 5 to return to their original state. At the same time, because the length B1 of the limiting shaft 8 is greater than the width C of the notch at the top of the damping frame 1, the limiting shaft 8 can intercept excess elastic potential energy, preventing the parts from rushing out of the damping frame 1 and causing damage. Subsequently, when the cigarette box begins to retract after completing the flipping operation in the flipping and unloading machine, the cigarette box will be intercepted by the damper, keeping it in a predetermined position, ready to enter the next production operation process.
[0047] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model 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 utility model.
Claims
1. A smoke box damper, characterized in that, The cigarette box damper includes: a damping frame (1), a bracket, a spring (3), a telescopic plate (4), a damping wheel (5), a fixed shaft (6), a connecting large shaft (9), and a limiting small shaft (8); The damping frame (1) is located on the outermost periphery; The bracket is set inside the damping frame (1), and the top of the bracket is an "I" shaped structure plate; The spring (3) is disposed on the I-shaped structure plate of the bracket; The number of the telescopic pieces (4) is two, and they are vertically arranged inside the spring (3), and the two telescopic pieces (4) are respectively arranged in the notches on both sides of the bracket "I" structure plate; The telescopic piece (4) has a first hole and a second hole from top to bottom; The damping wheel (5) has a front wheel (5-1) and a rear wheel (5-2), and the front wheel (5-1) and the rear wheel (5-2) are provided with fixing plates on both sides to connect the two wheels; A fixed shaft (6) passes through the first hole at the top of the front wheel (5-1) and the two telescopic plates (4) to achieve the connection between the front wheel (5-1) and the two telescopic plates (4); The connecting axle (9) passes through the rear wheel (5-2) and is fixed to the damping frame (1) so that the rear wheel (5-2) is fixed in position and rotates only around its own center. The limiting shaft (8) is inserted through the second hole of the telescopic piece (4), and both ends of the limiting shaft (8) are blocked by the spring (3); The length of the limiting small shaft (8) is B1, the length of the connecting large shaft (9) is B2, and the width of the top notch of the damping frame (1) is C. The size relationship is B1 > C > B2, so that the front wheel (5-1) can rotate around its own center and move up and down within a certain range.
2. The smoke box damper according to claim 1, characterized in that, The back of the damping frame (1) is provided with vertically arranged elongated slots for connecting, fixing and adjusting the installation position of the damping frame (1).
3. The smoke box damper according to claim 1, characterized in that, The support is a tripod (2), the top surface of the tripod (2) is an "I" structure, the front and back are triangular structures, and a through hole for assembly with the damping frame (1) is provided at the center of the triangular structure.
4. The smoke box damper according to claim 1, characterized in that, The front wheel (5-1) and rear wheel (5-2) are bearings.
5. The smoke box damper according to claim 1, characterized in that, The first hole of the telescopic piece (4) and the fixed shaft (6) are fitted together by a butterfly clip.
6. The smoke box damper according to claim 1, characterized in that, The connecting axle (9) and the rear wheel (5-2) are fixedly engaged by a butterfly clip.
7. The smoke box damper according to claim 1, characterized in that, The second hole of the telescopic piece (4) and the limiting shaft (8) are fitted together by a butterfly clip.