A buffer device for a stick product filling line

Abstract

The utility model provides a kind of for rod-shaped product filling line buffer device, including stacking conveying mechanism and buffer mechanism, the buffer mechanism includes buffer storehouse, vertical conveying passage and press chain, the buffer storehouse is located the stacking conveying mechanism's stacking conveying passage export and is located the vertical conveying passage upside, the press chain one end is installed in the buffer storehouse side wall, the other end extends to the vertical conveying passage inside downwards, the press chain is hung in the stacking conveying passage export. The press chain of the device part chain body hangs in stacking conveying passage export, so there will be a gradually extruded into buffer storehouse process, posture will present gradual change in process, chain body will not produce large-angle bending or folding, so that rod-shaped material can be with stable transverse form smoothly into the buffer storehouse in the buffer mechanism, prevent the appearance transverse stick, disorder stick situation.

Description

Technical Field

[0001] This utility model relates to a buffer mechanism for a conveyor line, specifically, to a buffer device for a bar-shaped product filling line. Background Technology

[0002] In the tobacco processing and manufacturing industry, when cigarettes, filters, and other rod-shaped materials related to cigarette products produced by upstream equipment are transported to downstream equipment, they are usually conveyed by conveyor equipment in a multi-layer stacked manner, with short-term storage in between before being transported to downstream equipment, or briefly stored in a container, and then these containers are emptied and transported to downstream equipment again in a multi-layer stacked manner by the conveyor mechanism.

[0003] The applicant's Chinese invention patent CN202310853654.8 discloses a conveying and filling device and method for rod-shaped products, which details the above-mentioned content. When rod-shaped materials need to be loaded into a rod-shaped product container via a stacking conveyor in a multi-layered stacking manner, an unavoidable difference exists between the transport capacity of the stacking conveyor and the loading capacity of the loading mechanism (i.e., the guide mechanism in the aforementioned patent). Therefore, a buffer mechanism is needed between the two to buffer a portion of the rod-shaped material when the transport capacity of the stacking conveyor is excessive, and to release a portion of the rod-shaped material when the transport capacity of the stacking conveyor decreases. The transport capacity and loading capacity mentioned above specifically refer to the volume of the rod-shaped material, not its quantity. For example, when the quantity of rod-shaped materials is the same but the diameter changes, the transport capacity and loading capacity will change significantly. In this disclosed patent, the buffer mechanism is located at the tail end of the stacking conveying space (i.e., the stacking conveying mechanism). The upper part of the buffer mechanism is bucket-shaped, and the lower part of the buffer mechanism is provided with a vertical conveying channel. The flow guiding mechanism (i.e. the loading mechanism) is located at the rear end of the vertical conveying channel, and a smoke-pressing chain is provided in the bucket-shaped space of the buffer mechanism.

[0004] However, according to the description and drawings in the aforementioned patent, the two ends of the smoke-pressing chain in the buffer mechanism are fixed inside the bucket-shaped space of the buffer mechanism, and the middle part of the smoke-pressing chain hangs down naturally to the top end of the vertical conveying channel. When multiple layers of stacked rod-shaped materials in the stacking conveying mechanism accumulate from one side of the naturally hanging smoke-pressing chain into the bucket-shaped space of the buffer mechanism, the smoke-pressing chain itself will bend or fold at a large angle due to its own weight and the squeezing effect of the stacked rod-shaped materials. The large-angle bending or folding parts will affect each other with friction and gravity, making it impossible for the smoke-pressing chain to provide pressure to the rod-shaped materials in a smooth and stable manner. When a large amount of rod-shaped materials enter the bucket-shaped space, the uneven force caused by the bending or folding of the smoke-pressing chain will likely cause the rod-shaped materials in the bucket-shaped space to become disordered or horizontal, making it difficult for the rod-shaped materials to enter and exit the buffer mechanism and also hindering the subsequent filling of the rod-shaped materials.

[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a buffer device for a rod-shaped product filling line. By using the smoke-pressing chain that hangs vertically at the outlet of the stacking conveyor channel and extends downward into the vertical conveyor channel, the large-angle bending and folding that may occur when the smoke-pressing chain is squeezed are avoided, thereby allowing the rod-shaped material to smoothly enter and exit the buffer mechanism in a stable horizontal position.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a stacking conveying mechanism and a buffer mechanism. The buffer mechanism includes a buffer silo, a vertical conveying channel, and a smoke suppressing chain. The buffer silo is located at the outlet of the stacking conveying channel of the stacking conveying mechanism and is located on the upper side of the vertical conveying channel. One end of the smoke suppressing chain is installed on the side wall of the buffer silo, and the other end extends downward into the vertical conveying channel. The smoke suppressing chain hangs at the outlet of the stacking conveying channel.

[0008] Based on the above, the outlet of the buffer silo is provided with a wrapping thin belt. The wrapping thin belt extends from the inlet of the vertical conveying channel to the outlet of the stacking conveying channel. One end of the wrapping thin belt is fixed to the inner wall of the buffer silo, and the other end passes through the side wall of the buffer silo and is connected to an elastic member, so that the wrapping thin belt can be unfolded at the outlet of the buffer silo and can be pressed into the buffer silo by the smoke suppression chain.

[0009] Based on the above, the elastic element is a constant force spring.

[0010] Based on the above, the elastic element is a constant force spring, the wrapped thin belt passes through the side wall of the buffer silo and surrounds the outer wall of the buffer silo, and is connected to the constant force spring.

[0011] Based on the above, when the buffer silo is filled with rod-shaped materials, the wrapping thin belt wraps around the inner wall of the buffer silo, and the smoke suppression chain covers the wrapping thin belt inside the buffer silo.

[0012] Based on the above, the smoke suppression chain is inclined outward at the outlet of the stacking conveyor channel and adheres to the side wall of the vertical conveyor channel.

[0013] Based on the above, the stacking conveyor mechanism includes an upper conveyor belt and a lower conveyor belt. The end of the smoke-pressing chain is installed at the end of the upper conveyor belt, and the end of the lower conveyor belt is equipped with a guide plate that serves as the side wall of the vertical conveying channel. When the smoke-pressing chain hangs, it fits against the guide plate.

[0014] Based on the above, the buffer silo is tilted toward the stacking conveyor channel and the vertical conveyor channel.

[0015] Based on the above, the stacking conveyor channel and the vertical conveyor channel are perpendicular to each other.

[0016] Based on the above, the buffer hopper is shaped like a hopper.

[0017] This utility model has substantial features and advancements compared to the prior art. Specifically, one end of the smoke-pressing chain is installed on the side wall of the buffer silo, and the other end extends downward into the vertical conveying channel. A portion of its chain body hangs at the outlet of the stacking conveying channel, thus undergoing a gradual compression process into the buffer silo. During this process, it exhibits a gently changing posture, and the chain body does not bend or fold at large angles. This allows the rod-shaped material to smoothly enter and exit the buffer silo within the buffer mechanism in a stable horizontal position, preventing horizontal or disordered rods.

[0018] By using a thin belt wrapped around the rod and connected with an elastic element, a certain amount of rebound force can be applied to the smoke suppressing chain and the stacked rod materials, preventing the smoke suppressing chain itself from bending or folding at large angles, and making it easier for the buffer mechanism to release the rod materials.

[0019] The elastic element of the constant force spring is used to tension and wrap the thin belt, and together with the smoke-pressing chain, it applies a relatively constant pressure to the rod-shaped products in the buffer silo. This avoids the excessive pressure on the pressure plate caused by the traditional spring pressure plate mechanism under the spring's limit state, which would otherwise damage the rod-shaped products.

[0020] The buffer hopper is shaped like a hopper and is tilted towards the stacking conveyor channel and the vertical conveyor channel. The stacking conveyor channel and the vertical conveyor channel are perpendicular to each other. The smoke suppression chain is tilted outward at the outlet of the stacking conveyor channel and is attached to the guide plate on the side wall of the vertical conveyor channel. All of the above are conducive to the stable, smooth and smooth buffering or release of rod-shaped materials without jamming, and prevent the rod-shaped materials from becoming disordered or horizontal. Attached Figure Description

[0021] Figure 1 This is a frontal view of the overall structure of this utility model; Figure 2 This is a three-dimensional perspective view of the overall structure of this utility model; In the figure, the attached reference numerals are: buffer mechanism 1, smoke suppression chain 11, wrapping thin belt 12, elastic element 13, tensioning wheel 14, upper conveyor belt 21, lower conveyor belt 22, guide plate 3; stacking conveyor channel 101, buffer silo 102, vertical conveyor channel 103. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0023] Example 1 like Figures 1-2 As shown, the buffer device for the bar-shaped product filling line in this embodiment includes a stacking conveyor mechanism and a buffer mechanism 1. The stacking conveyor mechanism includes a stacking conveying channel 101, and the buffer mechanism 1 includes a buffer material library 102 and a vertical conveying channel 103.

[0024] The stacking conveyor transports rod-shaped materials (i.e. rod-shaped products, such as cigarettes) by stacking conveying channel 101, with both ends of the rod-shaped materials pointing towards the side plates of the stacking conveyor. The materials enter the buffer silo 102 of the buffer mechanism 1 or fall directly into the vertical conveying channel 103 in this stacked form (i.e., the conveying capacity of the stacking conveyor). The rod-shaped materials passing through the vertical conveying channel 103 are loaded into containers or transferred to other conveying mechanisms in a horizontal posture by the loading mechanism or the transfer mechanism.

[0025] Since there will inevitably be a difference between the transport capacity of the stacking conveyor and the loading capacity of the loading or transfer mechanism, the buffer hopper 102 of the buffer mechanism 1 is set between the stacking conveyor channel 101 and the vertical conveyor channel 103. This can buffer a portion of the rod-shaped material when the transport capacity of the stacking conveyor is too large, and release a portion of the rod-shaped material when the transport capacity of the stacking conveyor is reduced.

[0026] The transport volume and loading volume mentioned in this application refer specifically to the volume of the rod-shaped material rather than the quantity. For example, when the quantity of rod-shaped material is the same but the diameter changes, the transport volume and loading volume will change significantly.

[0027] Based on the above, the buffer silo 102 is hopper-shaped with its inlet and outlet facing downwards. The hopper-shaped buffer silo 102 is conducive to the stable, smooth, and fluid buffering or release of rod-shaped materials without causing jamming.

[0028] When necessary, in this application, the sidewalls (including inner and outer walls) of the cache silo 102 of the cache mechanism 1 specifically refer to, for example... Figure 2 The hopper-shaped curved section, excluding the side plates at both ends of the corresponding rod-shaped material on both sides of the hopper-shaped section.

[0029] Specifically, in addition to the buffer silo 102 and the vertical conveying channel 103, the buffer mechanism 1 also includes a smoke suppressing chain 11. The buffer silo 102 is located at the outlet of the stacking conveying channel 101 of the stacking conveying mechanism and is located on the upper side of the vertical conveying channel 103. One end of the smoke suppressing chain 11 is installed on the side wall of the buffer silo 102, and the other end extends downward into the vertical conveying channel 103. A part of the smoke suppressing chain 11 hangs from the outlet of the stacking conveying channel 101.

[0030] More specifically, when no rod-shaped material is being conveyed to the outlet of the stacking conveyor channel 101, the smoke suppression chain 11 hangs vertically at the outlet of the stacking conveyor channel 101, such as... Figure 1 The dotted line indicates the smoke-pressing chain 11. When a small amount of rod-shaped material is conveyed through the stacking conveyor channel 101 to the smoke-pressing chain 11 at its outlet, the smoke-pressing chain 11 is pushed by the stacked rod-shaped material. Simultaneously, the weight of the smoke-pressing chain 11 acts on the rod-shaped material, causing it to fall orderly into the vertical conveyor channel 103 in a horizontal position. When a large amount of rod-shaped material is conveyed through the stacking conveyor channel 101 to the smoke-pressing chain 11 at its outlet, the entire smoke-pressing chain 11 is pushed by the rod-shaped material, presenting a shape as shown in the image. Figure 1 , Figure 2 The shape of the curve, the weight and shape of the smoke suppressing chain 11 itself, allow a large amount of rod-shaped material to enter the vertical conveying channel 103 in an orderly manner. When the conveying capacity of the stacking conveying channel 101 exceeds the loading capacity of the vertical conveying channel 103, some of the rod-shaped material will be pushed by the subsequent rod-shaped material and enter the buffer silo 102 for temporary storage by squeezing the smoke suppressing chain 11. When it is necessary to release the rod-shaped material in the buffer silo 102 into the vertical conveying channel 103, the weight of the smoke suppressing chain 11 itself will also play a role in the orderly release of the rod-shaped material.

[0031] During the above process, the smoke-pressing chain 11 is installed on the side wall of the buffer silo 102 at one end and extends downward into the vertical conveying channel 103 at the other end. A part of the chain hangs at the outlet of the stacking conveying channel 101. Therefore, it will be gradually squeezed into the buffer silo 102. During the process, it will exhibit a smooth change in posture. The chain will not bend or fold at a large angle, so that the rod-shaped material can smoothly enter and exit the buffer silo 102 in the buffer mechanism 1 in a stable horizontal position, preventing horizontal or disordered rods.

[0032] Example 2 Based on Embodiment 1, the outlet of the buffer silo 102 is provided with a wrapping thin belt 12. The wrapping thin belt 12 extends from the inlet of the vertical conveying channel 103 to the outlet of the stacking conveying channel 101. One end of the wrapping thin belt 12 is fixed to the inner wall of the buffer silo 102, and the other end passes through the side wall of the buffer silo 102 and is connected to the elastic member 13, so that the wrapping thin belt 12 unfolds at the outlet of the buffer silo 102 and can be pressed into the buffer silo 102 by the smoke suppressing chain 11.

[0033] By using a thin belt 12 wrapped around and connected to an elastic element 13, a certain rebound force can be applied to the smoke suppressing chain 11 and the stacked rod-shaped materials. On the one hand, this further prevents the smoke suppressing chain 11 from bending or folding at large angles, and on the other hand, it is more conducive to the buffer mechanism 1 releasing the rod-shaped materials.

[0034] Example 3 Based on Embodiment 2, when the elastic element 13 is a conventional spring, the pressure on the thin belt 12 will be too high under the spring's limit state. Therefore, in this embodiment, the elastic element 13 is further set as a constant force spring.

[0035] Based on the above, the elastic element 13 adopts a constant force spring, which wraps around the thin belt 12, passes through the side wall of the buffer silo 102, and is arranged around the outer wall of the buffer silo 102, and is connected to the constant force spring.

[0036] Based on the above, when the buffer silo 102 is filled with rod-shaped materials, the wrapping thin belt 12 has sufficient length to wrap around the inner wall of the buffer silo 102. Based on the above, when the buffer silo 102 is filled with rod-shaped materials, the smoke suppressing chain 11 has sufficient length to cover the wrapping thin belt 12 inside the buffer silo 102.

[0037] Based on the above, the thin belt 12 is redirected outside the buffer hopper 102 via the tensioning pulley 14. Both the thin belt 12 and the constant force spring can be redirected via the tensioning pulley 14, and at least two tensioning pulleys 14 are provided.

[0038] In this embodiment, the elastic element 13 of the constant force spring is used to tension and wrap the thin belt 12, and together with the smoke-pressing chain 11, it applies a relatively constant pressure to the rod-shaped products in the buffer silo 102, so as to avoid the excessive pressure of the pressure plate caused by the traditional spring pressure plate mechanism under the spring limit state, thereby causing damage to the rod-shaped products.

[0039] Furthermore, if the thin wrapping belt 12 is wound into the constant force spring, it may affect the winding and unwinding of the constant force spring. The material of the constant force spring is usually not suitable for use as a wrapping belt 12 in the buffer hopper 102. Therefore, in order to ensure that the wrapping belt 12 has sufficient length, when the wrapping belt 12 is not compressed and the constant force spring pulls the wrapping belt 12 taut, the wrapping belt 12 will wrap around the outside of the buffer hopper 102. When the wrapping belt 12 is wrapped around the inner wall of the buffer hopper 102, the constant force spring will extend a certain distance. In this way, the wrapping belt 12 and the constant force spring can each play their respective roles and will not be used interchangeably.

[0040] Example 4 Based on any of the above embodiments, the smoke-pressing chain 11 is inclined outward at the outlet of the stacking conveying channel 101 and adheres to the side wall of the vertical conveying channel 103. In this way, when only a small amount of rod-shaped material reaches the outlet of the stacking conveying channel 101, this small amount of rod-shaped material can contact the smoke-pressing chain 11 in time and always fall directly into the vertical conveying channel 103 under the action of the smoke-pressing chain 11's own gravity, ensuring the stable, smooth and smooth conveying of rod-shaped material and preventing the rod-shaped material from becoming disordered or horizontal.

[0041] Based on the above, the stacking conveyor includes an upper conveyor belt 21 and a lower conveyor belt 22. The end of the smoke suppressing chain 11 is installed at the end of the upper conveyor belt 21, and the end of the lower conveyor belt 22 is equipped with a guide plate 3, which serves as the side wall of the vertical conveying channel 103. When the smoke suppressing chain 11 hangs, it fits against the guide plate 3.

[0042] Example 5 Based on any of the above embodiments, the buffer silo 102 is inclined toward the stacking conveyor channel 101 and the vertical conveyor channel 103, specifically as follows: Figure 1 As shown, the orientation of the buffer silo 102 is consistent with the orientation of the angle bisector of the orientation of the stacking conveyor channel 101 and the orientation of the vertical conveyor channel 103, enabling the buffer silo 102 to smoothly handle rod-shaped materials in a stable horizontal position.

[0043] Furthermore, based on the above, the stacking conveyor channel 101 and the vertical conveyor channel 103 are perpendicular to each other, which is more conducive to the buffer silo 102 smoothly handling rod-shaped materials.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A buffer device for a bar-shaped product filling line, characterized in that, The system includes a stacking conveyor and a buffer mechanism (1). The buffer mechanism (1) includes a buffer hopper (102), a vertical conveying channel (103), and a smoke suppressor chain (11). The buffer hopper (102) is located at the outlet of the stacking conveying channel (101) of the stacking conveyor and is located on the upper side of the vertical conveying channel (103). One end of the smoke suppressor chain (11) is installed on the side wall of the buffer hopper (102), and the other end extends downward into the vertical conveying channel (103). The smoke suppressor chain (11) hangs at the outlet of the stacking conveying channel (101).

2. The buffer device for a rod-shaped product filling line according to claim 1, characterized in that, The outlet of the buffer silo (102) is provided with a wrapping thin belt (12). The wrapping thin belt (12) extends from the inlet of the vertical conveying channel (103) to the outlet of the stacking conveying channel (101). One end of the wrapping thin belt (12) is fixed to the inner wall of the buffer silo (102), and the other end passes through the side wall of the buffer silo (102) and is connected to the elastic member (13), so that the wrapping thin belt (12) can be unfolded at the outlet of the buffer silo (102) and can be pressed into the buffer silo (102) by the smoke suppressing chain (11).

3. The buffer device for a rod-shaped product filling line according to claim 2, characterized in that, The elastic element (13) is a constant force spring.

4. The buffer device for a rod-shaped product filling line according to claim 3, characterized in that, The elastic element (13) is a constant force spring, the wrapping thin belt (12) passes through the side wall of the buffer silo (102) and surrounds the outer wall of the buffer silo (102), and is connected to the constant force spring.

5. The buffer device for a rod-shaped product filling line according to claim 4, characterized in that, When the buffer silo (102) is filled with rod-shaped material, the wrapping thin belt (12) wraps around the inner wall of the buffer silo (102), and the smoke suppressing chain (11) covers the wrapping thin belt (12) inside the buffer silo (102).

6. The buffer device for a rod-shaped product filling line according to claim 1, 2, 3, or 4, characterized in that, The smoke-pressing chain (11) is inclined outward at the outlet of the stacking conveying channel (101) and adheres to the side wall of the vertical conveying channel (103).

7. The buffer device for a rod-shaped product filling line according to claim 6, characterized in that, The stacking conveyor includes an upper conveyor belt (21) and a lower conveyor belt (22). The end of the smoke suppressing chain (11) is installed at the end of the upper conveyor belt (21), and the end of the lower conveyor belt (22) is equipped with a guide plate (3) that serves as the side wall of the vertical conveying channel (103). When the smoke suppressing chain (11) hangs, it fits against the guide plate (3).

8. The buffer device for a rod-shaped product filling line according to claim 1, 2, 3, or 4, characterized in that, The buffer silo (102) is tilted toward the stacking conveyor channel (101) and the vertical conveyor channel (103).

9. The buffer device for a rod-shaped product filling line according to claim 8, characterized in that, The stacking conveying channel (101) and the vertical conveying channel (103) are perpendicular to each other.

10. The buffer device for a bar-shaped product filling line according to claim 1, 2, 3, or 4, characterized in that, The buffer hopper (102) is shaped like a hopper.

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