Slitted tobacco block conveying buffer device

Abstract

The utility model belongs to the field of tobacco leaf processing equipment in the cigarette industry, and particularly relates to a cut tobacco block conveying buffer device. The device aims at solving the problems of collision and vibration generated when cut tobacco blocks are conveyed to a vibration conveyor from a belt conveyor in the cigarette production process. The device comprises a side mounting plate, a fixed seat assembly, a supporting shaft, a left / right return mechanism, a limiting mechanism, a buffer supporting plate and the like. According to the device, resilience force is provided through the torsional spring, so that the buffering supporting plate can quickly rebound to the initial position after the tobacco blocks are stably conveyed to the vibrating conveyor. The limiting mechanism is used for controlling the initial angle of the buffering supporting plate and limiting the limit angle of upward rebounding of the buffering supporting plate. The device is compact in structure, reasonable in design and capable of effectively reducing impact and vibration of tobacco blocks in the conveying process, reducing the tobacco leaf crushing amount, improving the whole tobacco shred rate and purity of shredded tobacco shreds and improving the cigarette quality, meanwhile, the service life of conveying equipment is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of tobacco leaf processing equipment in the cigarette industry, and specifically relates to a slit tobacco block conveying buffer device. Background Technology

[0002] In the cigarette production process, the raw material for tobacco shreds is large tobacco blocks packaged in cardboard boxes after being pressed from re-dried tobacco leaves. When processing the tobacco shreds, the cardboard packaging needs to be removed and the large tobacco blocks need to be cut into smaller tobacco blocks. These smaller tobacco blocks are then transported by belt conveyor to a vibrating conveyor, where they are broken down into loose tobacco leaves before entering the subsequent processing steps.

[0003] Firstly, during the transport of tobacco blocks, the significant height difference between the belt conveyor and the vibrating conveyor, coupled with the vibrating conveyor's angled orientation relative to the horizontal plane, leads to a substantial increase in tobacco leaf breakage. This is particularly noticeable when the chopped tobacco blocks fall onto the vibrating conveyor without proper cushioning, resulting in strong impacts and vibrations. Compared to the gentler dispersing action of the vibrating conveyor, this significantly increases the amount of broken tobacco leaves. Excessive breakage significantly impacts the shredding process, reducing the whole-shred rate and affecting the filling properties and combustibility of the cigarettes, thus impacting cigarette quality. Furthermore, the tobacco fragments may contain numerous impurities and stems, which are difficult to remove during shredding, further reducing the purity of the shredded tobacco and compromising cigarette quality. Consequently, some raw tobacco material cannot be effectively utilized, resulting in significant waste and increased costs.

[0004] Secondly, the impact of the smoke blocks also puts enormous stress on the vibrating conveyor itself. The abnormal wear and deformation caused by these impacts during long-term operation not only shortens the equipment's service life but also increases maintenance and upkeep costs.

[0005] Therefore, there is an urgent need for a shredded tobacco block conveying buffer device to reduce tobacco leaf loss, decrease raw material costs, and extend the service life of the conveying equipment. Furthermore, considering the limited space between the belt conveyor and the vibrating conveyor, as well as manufacturing costs, the device should have a compact structure and avoid overly complex designs. Utility Model Content

[0006] In response to the work requirements and existing problems in the aforementioned background technology, the inventors have considered and innovated in order to provide a slit tobacco block conveying buffer device, which provides the cigarette industry with a compact and efficient slit tobacco block conveying buffer solution.

[0007] To solve the above problems and achieve the above objectives, the present invention adopts the following technical solution:

[0008] A shredded tobacco block conveying buffer device, comprising:

[0009] Side mounting plate (1), there are two side mounting plates (1), each fixedly connected to both sides of the output end of the belt conveyor (A). The side mounting plate (1) has at least one set of two screw holes and one shaft hole.

[0010] The fixing base assembly (2) consists of two sets, which are detachably connected to the two side mounting plates (1);

[0011] Support shaft (3), both ends of which are detachably connected to two sets of fixed base assemblies (2);

[0012] Left return mechanism (4), one end of which is connected to the buffer plate (7), and the other end is connected to the support shaft (3);

[0013] The right return mechanism (5) is connected at one end to the buffer plate (7) and at the other end to the support shaft (3);

[0014] A limiting mechanism (6) is provided, one end of which is connected to the left return mechanism (4), and the other end is connected to the support shaft (3).

[0015] The buffer plate (7) is fixedly connected to the middle of the support shaft (3).

[0016] As a preferred embodiment of this utility model, the fixing base assembly (2) includes:

[0017] There are two fixed seats (21), which are detachably connected to the two side mounting plates (1) by bolts (22) and nuts (23);

[0018] There are two set screws (24), which detachably connect the two ends of the support shaft (3) to the two fixed seats (21).

[0019] As a preferred embodiment of this utility model, the left return mechanism (4) includes:

[0020] The left fixed bushing component (41) is detachably connected to the left side of the support shaft (3) by a set screw (411). The left fixed bushing component (41) has an ear plate (412) and a screw hole.

[0021] Torsion spring (42), one end of which is connected to the ear plate (412) of the left fixed bushing component (41) by bolts and nuts, and the other end is connected to the connecting plate (431) of the left movable bushing component (43) by bolts and nuts;

[0022] The left movable bushing component (43) is connected at one end to the buffer plate (7) and at the other end to the support shaft (3). The left movable bushing component (43) is composed of a connecting plate (431) and a bushing (432).

[0023] Left return mechanism bearing (44); There are two left return mechanism bearings (44), which are connected in the bushing (432) of the left movable bushing component (43).

[0024] As a preferred embodiment of this utility model, the right return mechanism (5) includes:

[0025] The right fixed bushing component (51) is detachably connected to the right side of the support shaft (3) by a set screw (511). The right fixed bushing component (51) has an ear plate (512) and a screw hole.

[0026] Torsion spring (52), one end of which is connected to the ear plate (512) of the right fixed bushing component (51) by bolts and nuts, and the other end is connected to the connecting plate (531) of the right movable bushing component (53) by bolts and nuts;

[0027] The right movable bushing component (53) is connected at one end to the buffer plate (7) and at the other end to the support shaft (3). The right movable bushing component (53) is composed of a connecting plate (531) and a bushing (532).

[0028] Right return mechanism bearing (55); There are two right return mechanism bearings (55), which are connected in the bushing (532) of the right movable bushing component (53).

[0029] As a preferred embodiment of this utility model, the limiting mechanism (6) includes:

[0030] Limiting baffle (61), the limiting baffle (61) is fixedly connected to the left side of the support shaft (3);

[0031] Adjusting plate (62), the adjusting plate (62) is fixedly connected to the bushing (432) of the left movable bushing component (43), and has a screw hole in the center;

[0032] Adjusting limit bolt (63) is installed in the screw hole of adjusting plate (62). The initial angle of buffer plate (7) is controlled by adjusting the amount of the adjusting limit bolt (63) extending out of adjusting plate (62) and limiting the limit angle that it can reach when it rebounds upward.

[0033] The working principle of this utility model is as follows:

[0034] The side mounting plate (1) is fixedly connected to both sides of the output end of the belt conveyor (A), providing support and a mounting base for the entire device. The support shaft (3) is connected to the side mounting plate (1) via the fixed seat assembly (2), providing support for components such as the left return mechanism (4), the right return mechanism (5), and the buffer plate (7). The fixed bushing assembly (41 / 51) is connected to the support shaft (3), providing a mounting base for the torsion spring (42 / 52) and the movable bushing assembly (43 / 53). The torsion spring (42 / 52) provides power for the rebound of the buffer plate (7). The movable bushing assembly (43 / 53) is connected to the support shaft (3) via the bearing (44 / 55), allowing the buffer plate (7) to tilt and rebound smoothly when subjected to impact. The buffer plate (7) is fixedly connected to the middle of the support shaft (3) to receive the slit tobacco blocks (8) falling from the belt conveyor (A). The limiting mechanism (6) is used to adjust the initial angle of the buffer plate (7) and limit the maximum angle that it can reach when it rebounds upward, so as to prevent it from rebounding excessively or going out of control. The initial angle and the limit angle of rebound of the buffer plate (7) are set by adjusting the amount of the limiting bolt (63) extending out of the adjusting plate (62).

[0035] When the slit tobacco block (8) falls from the output end of the belt conveyor (A) onto the buffer tray (7), the buffer tray (7) tilts downwards due to the weight of the tobacco block, while the torsion springs (42 / 52) of the left return mechanism (4) and the right return mechanism (5) store energy. When the slit tobacco block (8) falls into the vibrating conveyor (B) under gravity, the buffer tray (7) loses its weight, the torsion springs (42 / 52) release energy, and push the buffer tray (7) back to its initial position, where the limiting mechanism (6) ensures that the rebound angle of the buffer tray (7) is within the set range. After the buffer tray (7) rebounds, it is ready to receive the next tobacco block, and so on in a continuous cycle.

[0036] The beneficial effects of this utility model are:

[0037] 1. This invention significantly reduces tobacco leaf breakage, improves cigarette quality, and reduces raw material waste: This invention effectively reduces the impact force when the shredded tobacco blocks fall, avoiding tobacco leaf breakage caused by impact and vibration. By reducing tobacco leaf breakage, the whole-shred rate and purity of the shredded tobacco are increased, which helps improve the filling properties and combustibility of cigarettes, thereby improving the overall quality of cigarettes; at the same time, it increases the utilization rate of tobacco raw materials, reduces raw material waste, and lowers production costs.

[0038] 2. This utility model extends the service life of conveying equipment: By reducing the direct impact of smoke blocks on the vibrating conveyor, this utility model effectively reduces the risk of abnormal wear and deformation of the equipment, extends the service life of the conveying equipment, reduces the frequency of maintenance and equipment replacement, and further reduces production costs.

[0039] 3. This utility model has a compact structure and is easy to install and maintain: This utility model not only fits the limited installation space between belt conveyors and vibrating conveyors, but also has a compact structure, which makes it easy to install and debug on existing production lines, as well as for daily maintenance and troubleshooting. Attached Figure Description

[0040] Figure 1 This is one of the schematic diagrams showing the working state of the slit tobacco block conveying buffer device of this utility model;

[0041] Figure 2 This is the second schematic diagram of the working state of the slit tobacco block conveying buffer device of this utility model;

[0042] Figure 3 This is a schematic diagram of the downward rotation movement of the slitting and conveying buffer device for tobacco blocks according to this utility model;

[0043] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the slitting and conveying buffer device for tobacco blocks according to this utility model;

[0044] Figure 5 This is one of the three-dimensional assembly drawings of the slitting and conveying buffer device for tobacco blocks of this utility model;

[0045] Figure 6 This is the second three-dimensional assembly drawing of the slitting and conveying buffer device of this utility model;

[0046] Figure 7 It is a 3D assembly drawing of the mounting bracket assembly;

[0047] In the figure, the labels are as follows: 1—side mounting plate; 2—fixed seat assembly, 21—fixed seat, 22—bolt, 23—nut, 24—set screw; 3—support shaft; 4—left return mechanism, 41—left fixed bushing component, 411—set screw, 412—ear plate, 42—torsion spring, 43—left movable bushing component, 431—connecting plate, 432—shoulder sleeve, 44—left return mechanism bearing; 5—right return mechanism, 51—right fixed bushing component, 511—set screw, 512—ear plate, 52—torsion spring, 53—right movable bushing component, 531—connecting plate, 532—shoulder sleeve, 54—right return mechanism bearing; 6—limiting mechanism, 61—limiting baffle, 62—adjusting plate, 63—adjusting limit bolt, 7—buffer plate; 8—cut tobacco blocks, 8A—loose tobacco material; A—belt conveyor; B—vibrating conveyor. Detailed Implementation

[0048] To make the purpose, technical solution and advantages of this utility model patent clearer, the present utility model patent will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model patent. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of this utility model patent.

[0049] Example 1

[0050] like Figure 1 — Figure 7 The illustrated slit tobacco block conveying buffer device includes:

[0051] Side mounting plate 1, there are two side mounting plates 1, each fixedly connected to both sides of the output end of belt conveyor A. The side mounting plate 1 has at least one set of two screw holes and one shaft hole.

[0052] The fixing base assembly 2 consists of two sets, which are detachably connected to the two side mounting plates 1 respectively;

[0053] Support shaft 3, both ends of which are detachably connected to two sets of fixed base assemblies 2;

[0054] The left return mechanism 4 is connected at one end to the buffer plate 7 and at the other end to the support shaft 3.

[0055] The right return mechanism 5 is connected at one end to the buffer plate 7 and at the other end to the support shaft 3.

[0056] The limiting mechanism 6 is connected at one end to the left return mechanism 4 and at the other end to the support shaft 3;

[0057] The buffer plate 7 is fixedly connected to the middle of the support shaft 3.

[0058] Specifically, such as Figure 7 As shown, the fixing base assembly 2 includes:

[0059] Two fixing bases 21 are provided, which are detachably connected to the two side mounting plates 1 by bolts 22 and nuts 23 respectively.

[0060] There are two set screws 24, which detachably connect the two ends of the support shaft 3 to the two fixed seats 21.

[0061] Furthermore, such as Figure 5 , Figure 6 As shown, the left return mechanism 4 includes:

[0062] Left fixed bushing component 41, which is detachably connected to the left side of support shaft 3 by set screw 411, has an ear plate 412 on the left fixed bushing component 41 and a screw hole on the ear plate 412.

[0063] Torsion spring 42, one end of which is connected to the ear plate 412 of the left fixed bushing component 41 by bolts and nuts, and the other end is connected to the connecting plate 431 of the left movable bushing component 43 by bolts and nuts;

[0064] The left movable bushing component 43 is connected at one end to the buffer plate 7 and at the other end to the support shaft 3. The left movable bushing component 43 is composed of a connecting plate 431 and a bushing 432.

[0065] Left return mechanism bearing 44; there are two left return mechanism bearings 44, which are connected inside the bushing 432 of the left movable bushing component 43.

[0066] Furthermore, such as Figure 5 , Figure 6 As shown, the right return mechanism 5 includes:

[0067] The right fixed bushing component 51 is detachably connected to the right side of the support shaft 3 via a set screw 511. The right fixed bushing component 51 has an ear plate 512 with a screw hole.

[0068] Torsion spring 52, one end of which is connected to the lug 512 of the right fixed bushing component 51 by bolts and nuts, and the other end is connected to the connecting plate 531 of the right movable bushing component 53 by bolts and nuts;

[0069] The right movable bushing component 53 is connected at one end to the buffer plate 7 and at the other end to the support shaft 3. The right movable bushing component 53 is composed of a connecting plate 531 and a bushing 532.

[0070] Right return mechanism bearing 55; there are two right return mechanism bearings 55, which are connected inside the bushing 532 of the right movable bushing component 53.

[0071] Furthermore, such as Figure 6 As shown, the limiting mechanism 6 includes:

[0072] Limiting baffle 61, which is fixedly connected to the left side of the support shaft 3;

[0073] Adjusting plate 62, the adjusting plate 62 is fixedly connected to the bushing 432 of the left movable bushing component 43, and has a screw hole in the center;

[0074] Adjusting limit bolt 63 is installed in the screw hole of adjusting plate 62. The initial angle of buffer plate 7 is controlled and the limit angle that it can reach when it rebounds upward is controlled by adjusting the amount of adjusting limit bolt 63 extending out of adjusting plate 62.

[0075] In summary, the specific usage process of this utility model is as follows:

[0076] The required components for the device are prefabricated in the factory, according to... Figure 5 — Figure 7 After assembly is completed, such as Figure 1 The device is welded to the output end of belt conveyor A as shown. After installation, commissioning and trial operation are carried out.

[0077] like Figure 1 , Figure 2 As shown, after the device is debugged, it is started. When the slit tobacco block 8 falls from the output end of the belt conveyor A onto the buffer tray 7, the buffer tray 7 tilts downwards due to the weight of the tobacco block. At the same time, the torsion springs 42 / 52 of the left return mechanism 4 and the right return mechanism 5 store energy. When the slit tobacco block 8 falls into the vibrating conveyor B under the action of gravity, the buffer tray 7 loses its weight, and the torsion springs 42 / 52 release energy, pushing the buffer tray 7 back to its initial position. The limiting mechanism 6 ensures that the rebound angle of the buffer tray 7 is within the set range. After the buffer tray 7 rebounds, it prepares to receive the next tobacco block, and this cycle repeats.

[0078] As time goes by, such Figure 1 , Figure 2 As shown, the slit tobacco blocks 8 are gently conveyed to the vibrating conveyor B one by one, and are gently vibrated and broken into loose tobacco leaves 8A by the vibrating conveyor B and then conveyed to the subsequent shredding process. The amount of broken tobacco is greatly reduced compared to the slit tobacco blocks 8 directly impacting the vibrating conveyor B.

[0079] Finally, it should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A shredded tobacco block conveying and buffering device, characterized in that, It includes: Side mounting plate (1), there are two side mounting plates (1), each fixedly connected to both sides of the output end of the belt conveyor (A). The side mounting plate (1) has at least one set of two screw holes and one shaft hole. The fixing base assembly (2) consists of two sets, which are detachably connected to the two side mounting plates (1); Support shaft (3), both ends of which are detachably connected to two sets of fixed base assemblies (2); Left return mechanism (4), one end of which is connected to the buffer plate (7), and the other end is connected to the support shaft (3); The right return mechanism (5) is connected at one end to the buffer plate (7) and at the other end to the support shaft (3); A limiting mechanism (6) is provided, one end of which is connected to the left return mechanism (4) and the other end of which is connected to the support shaft (3). The buffer plate (7) is fixedly connected to the middle of the support shaft (3).

2. The slit tobacco block conveying buffer device according to claim 1, characterized in that, The mounting bracket assembly (2) includes: There are two fixed seats (21), which are detachably connected to the two side mounting plates (1) by bolts (22) and nuts (23); There are two set screws (24), which detachably connect the two ends of the support shaft (3) to the two fixed seats (21).

3. The slit tobacco block conveying buffer device according to claim 1, characterized in that, The left return mechanism (4) includes: The left fixed bushing component (41) is detachably connected to the left side of the support shaft (3) by a set screw (411). The left fixed bushing component (41) has an ear plate (412) and a screw hole. Torsion spring (42), one end of which is connected to the ear plate (412) of the left fixed bushing component (41) by bolts and nuts, and the other end is connected to the connecting plate (431) of the left movable bushing component (43) by bolts and nuts; The left movable bushing component (43) is connected at one end to the buffer plate (7) and at the other end to the support shaft (3). The left movable bushing component (43) is composed of a connecting plate (431) and a bushing (432). Left return mechanism bearing (44); There are two left return mechanism bearings (44), which are connected in the bushing (432) of the left movable bushing component (43).

4. The slit tobacco block conveying buffer device according to claim 1, characterized in that, The right return mechanism (5) includes: The right fixed bushing component (51) is detachably connected to the right side of the support shaft (3) by a set screw (511). The right fixed bushing component (51) has an ear plate (512) and a screw hole. Torsion spring (52), one end of which is connected to the ear plate (512) of the right fixed bushing component (51) by bolts and nuts, and the other end is connected to the connecting plate (531) of the right movable bushing component (53) by bolts and nuts; The right movable bushing component (53) is connected at one end to the buffer plate (7) and at the other end to the support shaft (3). The right movable bushing component (53) is composed of a connecting plate (531) and a bushing (532). Right return mechanism bearing (55); There are two right return mechanism bearings (55), which are connected inside the bushing (532) of the right movable bushing component (53).

5. The slit tobacco block conveying buffer device according to claim 1, characterized in that, The limiting mechanism (6) includes: Limiting baffle (61), the limiting baffle (61) is fixedly connected to the left side of the support shaft (3); Adjusting plate (62), the adjusting plate (62) is fixedly connected to the bushing (432) of the left movable bushing component (43), and has a screw hole in the center; Adjusting limit bolt (63) is installed in the screw hole of adjusting plate (62). The initial angle of buffer plate (7) is controlled by adjusting the amount of the adjusting limit bolt (63) extending out of adjusting plate (62) and limiting the limit angle that it can reach when it rebounds upward.

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