Filter stick switching device, composite filter stick forming machine and control method of composite filter stick forming machine

Abstract

The invention discloses a filter stick switching device, a composite filter stick forming machine and a control method of the composite filter stick forming machine. The filter stick switching device comprises a switching disc and a switching guide rail. The adapter disc is rotatably arranged around the axis of the adapter disc so as to convey the filter stick sections in the circumferential direction of the adapter disc. The transfer guide rail is arranged on the downstream of the transfer disc in the conveying direction, and the transfer guide rail comprises a bearing face arranged in the tangential direction of the transfer disc. The bearing surface is used for bearing the filter stick section conveyed by the transfer disc, and negative pressure adsorption holes are formed in the bearing surface and are configured to continuously generate negative pressure in the transfer process of the transfer disc so as to continuously adsorb particles falling onto the bearing surface. The negative pressure adsorption holes are configured to continuously generate negative pressure in the transfer process of the filter stick transfer device so as to continuously adsorb particles falling onto the transfer guide rail, so that adverse effects of the adhered particles on the filter stick section and subsequent molding paper are avoided, and the quality of the filter tip is improved.

Description

Technical Field

[0001] The invention relates to the technical field of filter rod production, and in particular to a filter rod switching device, a composite filter rod forming machine and a control method thereof. Background Art

[0002] Composite filter rods are formed by arranging multiple different types of filter rod segments in a certain order. Different types of filter rod segments include activated carbon filter rod segments, acetate filter rod segments, granular filter rod segments or cavity filter rod segments. The characteristic of granular filter rod segments is that there are particles distributed inside them, which provide specific functions or performance for the filter rod.

[0003] However, during the production process, when these filter rods containing particles are cut into several sections by a cutter, the particles are easy to fall off from the cut end of the section. If these fallen particles remain on the conveying path, they will stick to the subsequent sections, thereby affecting the quality of the filter.

[0004] It should be noted that the statements in this background technology section only provide background technology related to the present invention and do not necessarily constitute prior art. Summary of the invention

[0005] The invention provides a filter rod switching device, a composite filter rod forming machine and a control method thereof, so as to improve the quality of the filter tip.

[0006] A first aspect of the present invention provides a filter rod transfer device for conveying cut filter rod segments to a forming device, comprising:

[0007] The adapter plate comprises a plurality of teeth arranged at intervals on a circumferential edge, a filter rod segment accommodating cavity is formed between two adjacent teeth of the plurality of teeth, and the adapter plate is rotatably arranged around its axis to transport the filter rod segment in the circumferential direction of the adapter plate; and

[0008] The transfer guide rail is arranged downstream in the conveying direction of the transfer disk, and the transfer guide rail includes a receiving surface arranged in the tangential direction of the transfer disk, the receiving surface is used to receive the filter rod segment conveyed by the transfer disk, and negative pressure adsorption holes are constructed on the receiving surface. The negative pressure adsorption holes are configured to continuously generate negative pressure during the transportation process of the transfer disk to continuously adsorb the particles falling onto the receiving surface.

[0009] In some embodiments, the receiving surface is configured as an inclined surface.

[0010] In some embodiments, the transfer guide rail includes a first plane and a second plane, the second plane is inclined relative to the first plane, a groove is provided on the second plane, and the bottom surface of the groove forms a receiving surface.

[0011] In some embodiments, the filter rod transfer device also includes a transition guide rail arranged on the first plane, the transition guide rail is arranged on the radially outer side of the transfer disk and the guide surface of the transition guide rail contacts the shifting teeth of the transfer disk, when the transfer disk transfers the filter rod segment to the transition guide rail, two adjacent shifting teeth contact the two ends of the guide surface of the transition guide rail respectively, and the groove extends to the first plane and smoothly docks with the guide surface of the transition guide rail.

[0012] In some embodiments, the transfer guide rail further includes a vacuum chamber disposed on the lower side of the receiving surface, and the vacuum chamber is connected to the negative pressure adsorption hole to provide negative pressure.

[0013] In some embodiments, the vacuum chamber includes a first chamber and a second chamber, and a flow area of ​​the first chamber is smaller than a flow area of ​​the second chamber.

[0014] In some embodiments, the negative pressure of the vacuum chamber is configured to be adjustably set.

[0015] In some embodiments, the filter rod adapter also includes a controller and a speed detection device connected to the controller signal, the speed detection device is used to detect the moving speed of the filter rod segment on the receiving surface, and the controller is configured to control the negative pressure of the vacuum chamber according to the moving speed.

[0016] In some embodiments, the negative pressure adsorption hole comprises an elongated hole extending along the conveying direction of the filter rod segment, and the width of the elongated hole is smaller than the diameter of the filter rod.

[0017] The second aspect of the present invention provides a composite filter rod forming machine, comprising the above-mentioned filter rod transfer device and a forming device, the filter rod transfer device is configured to sequentially convey at least two different types of filter rod segments to the forming device, and the forming device is used to wrap at least two different types of filter rod segments with forming paper.

[0018] The third aspect of the present invention provides a control method based on the above-mentioned composite filter rod forming machine, comprising the following steps:

[0019] Control the transfer plate of the filter rod transfer device to rotate and simultaneously start the negative pressure device to form negative pressure at the negative pressure adsorption hole;

[0020] Real-time detection of the moving speed of the filter rod segment on the receiving surface; and

[0021] The negative pressure at the negative pressure adsorption hole is adjusted in real time according to the moving speed.

[0022] In some embodiments, adjusting the negative pressure at the negative pressure adsorption hole according to the moving speed includes: when the moving speed is less than the set speed, reducing the negative pressure at the negative pressure adsorption hole; when the moving speed is greater than the set speed, increasing the negative pressure at the negative pressure adsorption hole.

[0023] Based on the technical solution provided by the present invention, a filter rod transfer device is used to transport the cut filter rod segments to a forming device, and includes a transfer disk and a transfer guide rail. The transfer disk includes a plurality of teeth arranged at intervals on the circumferential edge. A filter rod segment accommodating cavity is formed between two adjacent teeth of the plurality of teeth. The transfer disk is rotatably arranged around its axis to transport the filter rod segments in the circumferential direction of the transfer disk. The transfer guide rail is arranged downstream of the conveying direction of the transfer disk, and the transfer guide rail includes a receiving surface arranged in the tangential direction of the transfer disk. The receiving surface is used to receive the filter rod segments conveyed by the transfer disk, and negative pressure adsorption holes are constructed on the receiving surface, and the negative pressure adsorption holes are configured to continuously generate negative pressure during the transportation process of the transfer disk to form continuous adsorption of particles falling onto the receiving surface. The negative pressure adsorption holes are configured to continuously generate negative pressure during the transfer process of the filter rod transfer device to continuously adsorb the particles that fall onto the transfer guide rail, thereby preventing the particles from adhering to the filter rod segments subsequently transported to the transfer guide rail, avoiding the adverse effects of the adhered particles on the filter rod segments and the subsequent bonding of the forming paper, and improving the quality of the filter tip.

[0024] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the filter rod adapter according to an embodiment of the present invention.

[0027] Figure 2 for Figure 1 The cross-sectional structural schematic diagram of the filter rod adapter is shown.

[0028] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the transfer guide rail of the filter rod transfer device.

[0029] Figure 4 for Figure 3 The cross-sectional structural schematic diagram of the transfer guide rail is shown.

[0030] Figure 5 for Figure 3 A partial top view structural schematic diagram of the transfer guide rail is shown.

[0031] Reference numerals:

[0032] 10. Transfer rail; 11. Supporting surface; 111. Negative pressure adsorption hole; 10a. First plane; 10b. Second plane; 12. Vacuum chamber; 121. First chamber; 122. Second chamber; 13. Pressure regulating valve;

[0033] 20. Adapter plate; 21. Gear shifter;

[0034] 30. Transition rail;

[0035] 40. Guiding structure. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0038] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0039] The particle filter rod is a special type of filter rod, which mainly enhances its filtering performance or increases other performance by adding filter particles to the filter rod. For example, the filter particles include adsorbent materials, aroma materials, or moisture-retaining materials. Filter particles of different materials will have different effects on smoke. For example, adsorbent materials can reduce tar and reduce harm, aroma materials can increase fragrance, and moisture-retaining materials can retain moisture.

[0040] Since particulate matter is distributed inside the particle filter rod, during the production process, when these material segments containing particles are cut into several segments by a cutter, the particles are easy to fall off from the cut end of the material segment. During the transportation process, the fallen particles will remain in the transportation channel. When these residual particles come into contact with the subsequent material segments or forming paper, they will adhere to the bonding point between the filter segment and the forming paper, or be mixed between the forming paper and the material segment, resulting in bulges on the filter surface. These bulges not only affect the appearance quality of the filter, but more importantly, these bulges will reduce the structural strength of the filter. When the filter is twisted or subjected to other external forces, these bulges are easy to become stress concentration points, causing the filter rod to burst. In addition, the presence of particles will also affect the circumference and roundness of the filter, further reducing the qualified rate of the filter.

[0041] In view of the above problems, an embodiment of the present invention proposes a filter rod transfer device for conveying the cut filter rod segments to a forming device. The filter rod transfer device of the embodiment of the present invention is provided with negative pressure adsorption holes on the receiving surface of the transfer guide rail to adsorb particles that fall off the transfer guide rail, so as to prevent the fallen particles from adhering to other filter rod segments conveyed later, thereby improving the quality of the filter tip.

[0042] Reference below Figures 1 to 5 The structure and working process of the filter rod adapter in some embodiments of the present invention are described in detail.

[0043] The filter rod transfer device provided in some embodiments of the present invention is used to transport the cut filter rod segments to the forming device. Figures 1 to 5 The filter rod transfer device of the embodiment of the present invention includes a transfer disk 20 and a transfer guide rail 10. The transfer disk 20 includes a plurality of teeth 21 arranged at intervals on the circumferential edge. A filter rod segment accommodating chamber is formed between two adjacent teeth 21 among the plurality of teeth 21. The transfer disk 20 is rotatably arranged around its axis to transport the filter rod segments in the circumferential direction of the transfer disk 20. The transfer guide rail 10 is arranged downstream in the conveying direction of the transfer disk 20, and the transfer guide rail 10 includes a receiving surface 11 arranged in the tangential direction of the transfer disk 20. The receiving surface 11 is used to receive the filter rod segments transported by the transfer disk 20, and negative pressure adsorption holes 111 are constructed on the receiving surface 11, and the negative pressure adsorption holes 111 are configured to continuously generate negative pressure during the transportation process of the transfer disk to form continuous adsorption of particles falling onto the receiving surface 11.

[0044] refer to Figure 1 and Figure 2 The composite filter rod forming machine provided in an embodiment of the present invention includes a filter rod cutting device, a filter rod switching device and a forming device. The filter rod cutting device is used to cut the filter rod into a plurality of filter rod segments. The filter rod switching device is used to convey the filter rod segments to the forming device in sequence. The filter rod switching device includes at least two transfer disks 20 arranged in the conveying direction. The plurality of transfer disks are meshed and connected in sequence, that is, the shifting teeth at the joint of two adjacent transfer disks in the plurality of transfer disks abut against each other so as to convey the filter rod segment between the two shifting teeth to another connected transfer disk, and finally the filter rod segment is conveyed to the transfer guide rail 10 through the last transfer disk 20 and then reaches the forming device for forming.

[0045] refer to Figure 1 The transfer plate 20 of this embodiment is a disc-shaped structure, and a plurality of shifting teeth 21 are evenly distributed on its circumferential edge. The transfer guide rail 10 of this embodiment is arranged downstream of the transfer plate 20 in the conveying direction, and the receiving surface 11 of the transfer guide rail 10 is arranged in the tangential direction of the transfer plate 20, so that the filter rod segments transported by the transfer plate 20 can reach the receiving surface 11 of the transfer guide rail 10 under the movement of the shifting teeth. And because the receiving surface 11 of the transfer guide rail 10 is located downstream of the conveying direction of the transfer plate 20 and is located on the lower side of the transfer plate 20, if the particles at the cut end of the filter rod segment fall off during the conveying process, they are easily gathered on the receiving surface of the transfer guide rail.

[0046] refer to Figures 3 to 5The receiving surface 11 of the transfer guide rail 10 of the embodiment of the present invention is provided with negative pressure adsorption holes 111, and the negative pressure adsorption holes 111 are configured to continuously generate negative pressure during the transportation process of the filter rod transfer device to continuously adsorb the particles that fall onto the transfer guide rail 10, thereby preventing the particles from adhering to the filter rod segments subsequently transported to the transfer guide rail 10, avoiding the adverse effects of the adhered particles on the filter rod segments and the subsequent bonding of the forming paper, and improving the quality of the filter tip.

[0047] In some embodiments, the receiving surface 11 is configured as an inclined surface. The receiving surface 11 is configured as an inclined surface so that the filter rod segment moves downward along the inclined surface under the movement of the shifting teeth. The setting of the inclined surface makes the conveyance of the filter rod segment smoother.

[0048] refer to Figure 3 In some embodiments, the transfer rail 10 includes a first plane 10a and a second plane 10b. The second plane 10b is tilted relative to the first plane 10a. A groove is formed on the second plane 10b. The bottom surface of the groove forms a receiving surface.

[0049] The upper surface of the transfer guide rail 10 is formed as a bent surface, which includes a first plane 10a arranged horizontally and a second plane 10b arranged obliquely relative to the first plane 10a. The second plane 10b forms a slope to receive the filter rod segment conveyed by the transfer plate 20. The first plane 10a and the second plane 10b are smoothly connected by rounded corners. A groove is provided on the second plane 10b, and the bottom surface of the groove forms a receiving surface. The length direction of the groove extends along the conveying direction of the filter rod. The groove is provided in the middle of the second plane 10b, and the bottom surface of the groove forms a receiving surface, so the negative pressure adsorption hole 111 is provided on the bottom surface of the groove.

[0050] The transfer guide 10 of the embodiment of the present invention is grooved on the second plane 10b, and the bottom surface of the groove is formed as a receiving surface, so that when the filter rod segment slides downward along the receiving surface for transportation, the side wall of the groove forms a limiting and blocking effect on the filter rod segment, preventing the filter rod segment from falling from the side of the transfer guide 10 during transportation. In addition, the side wall of the groove also forms a guiding effect on the transportation of the filter rod segment.

[0051] In some embodiments, the filter rod transfer device further includes a transition guide 30 disposed on the first plane 10a. The transition guide 30 is disposed radially outside the transfer plate 20. When the transfer plate 20 transfers the filter rod segment to the transition guide 30, two adjacent shifting teeth are respectively disposed at both ends of the guide surface of the transition guide 30. The groove 110 extends to the first plane 10a and smoothly docks with the guide surface of the transition guide 30.

[0052] like Figure 1As shown, when the transfer plate 20 rotates to transfer the filter rod segment, when the shifting teeth 21 of the transfer plate 20 rotate to the transition guide rail 30, the two adjacent shifting teeth 21 will be respectively arranged at the two ends of the guide surface of the transition guide rail 30, so that the filter rod segment moves downward along the guide surface of the transition guide rail 30 under the shifting of the rear shifting teeth 21 and moves to the groove 110 which is smoothly docked with the guide surface of the transition guide rail 30.

[0053] The embodiment of the present invention sets a transition guide rail 30 between the transfer plate 20 and the transfer guide rail 10, so that the transferred filter rod segments can be supported by the guide surface of the transition guide rail 30 on the path from the transfer plate 20 to the transfer guide rail 10, thereby making the transportation of the filter rod segments smoother.

[0054] refer to Figure 2 and Figure 4 In some embodiments, the transfer guide rail 10 further includes a vacuum chamber 12 disposed at the lower side of the receiving surface 11. The vacuum chamber 12 is connected to the negative pressure adsorption hole 111 to provide negative pressure.

[0055] like Figure 2 and Figure 4 In order to form negative pressure at the negative pressure adsorption hole 111, the filter rod transfer device of the embodiment of the present invention is provided with a side plate on the lower side of the transfer guide rail 10 to form a closed space under the receiving surface 11, and the closed space is connected to the negative pressure adsorption hole gas so that the particles can enter the closed space under the action of negative pressure.

[0056] In some embodiments, the vacuum chamber 12 includes a first chamber 121 and a second chamber 122 . The flow area of ​​the first chamber 121 is smaller than the flow area of ​​the second chamber 122 .

[0057] The second cavity 122 is closer to the negative pressure adsorption hole, and the first cavity 121 is connected to the negative pressure adsorption hole through the second cavity 122. The flow area of ​​the first cavity 121 is set to be smaller than the flow area of ​​the second cavity 122, so that the flow rate of the gas in the first cavity 121 is faster, which is more conducive to the adsorption of particles. The flow area mentioned here refers to the area of ​​the cross section perpendicular to the flow direction of the gas.

[0058] In some embodiments, the negative pressure of the vacuum chamber 12 is configured to be adjustably set.

[0059] refer to Figure 2The transfer rail 10 of the embodiment of the present invention further includes a pressure regulating valve 13 disposed at the through hole of the vacuum chamber 12. The through hole is connected to the negative pressure fan through an air pipe to form a negative pressure environment, so that the space below the receiving surface of the transfer rail 10 becomes a negative pressure air duct, which can generate a strong suction force to suck the accumulated and residual particles into the negative pressure air duct. In addition, by arranging the pressure regulating valve 13 at the through hole to adjust the negative pressure of the vacuum chamber 12, the negative pressure can be adjusted according to the actual use environment, thereby improving the application scope of the filter rod transfer device of the embodiment of the present invention.

[0060] In some embodiments, the filter rod adapter further comprises a controller and a speed detection device connected to the controller signal. The speed detection device is used to detect the moving speed of the filter rod segment on the receiving surface, and the controller is configured to control the negative pressure of the vacuum chamber 12 according to the moving speed.

[0061] When the filter rod segment of the embodiment of the present invention passes through the receiving surface, it moves on the receiving surface under the action of inertia and its own gravity, without any other driving force. Therefore, if the negative pressure at the negative pressure adsorption hole is too large, it will bring too much resistance to the movement of the filter rod segment, thereby affecting the normal transportation of the filter rod segment; if the negative pressure at the negative pressure adsorption hole is too small, it will not be able to play the role of adsorbing the detached particles or the effect of adsorbing the particles is not good, so it is very important to adjust the negative pressure at the negative pressure adsorption hole.

[0062] On the other hand, the filter rod transfer device of the embodiment of the present invention is used to transfer a variety of different types of filter rod segments, and the density and weight of different filter rod segments may be different. Therefore, the conveying speed for different types of filter rod segments during the conveying process may also be different. Therefore, it is necessary to detect the moving speed of the filter rod segment in real time, and adjust the negative pressure of the vacuum chamber 12 in real time according to the moving speed of the filter rod segment, so as to better adsorb the detached particles while ensuring the normal conveyance of the filter rod segment.

[0063] In some embodiments, adjusting the negative pressure at the negative pressure adsorption hole according to the moving speed includes: when the moving speed is less than the set speed, reducing the negative pressure at the negative pressure adsorption hole; when the moving speed is greater than the set speed, increasing the negative pressure at the negative pressure adsorption hole.

[0064] That is to say, when the moving speed is too slow, it proves that the negative pressure at this time is too high and has hindered the movement of the filter rod segment, so the negative pressure at the negative pressure adsorption hole should be reduced; and when the moving speed is too fast, it indicates that the negative pressure at the negative pressure adsorption hole is too small and cannot effectively adsorb the particles.

[0065] In some embodiments, the set speed is configured to vary according to different filter rod segments, and the set speed is an empirical value obtained through multiple experiments in advance.

[0066] In some embodiments, the negative pressure adsorption hole 111 comprises an elongated hole extending along the conveying direction of the filter rod segment, wherein the width of the elongated hole is smaller than the diameter of the filter rod, and the length of the elongated hole is smaller than the length of the filter rod.

[0067] A long and thin hole is cut on the bottom surface of the groove of the transfer guide rail 10, and the width of the long hole is about 2 mm. The long hole should be designed to be long and thin enough to cover the length of the entire conveying channel, but the length is larger than the particle size and smaller than the filter rod size to ensure that the particles can be effectively sucked in and do not affect the normal conveying of the material section.

[0068] In some embodiments, the negative pressure adsorption hole 111 includes a plurality of holes spaced apart in the conveying direction of the filter rod segment. The plurality of holes are spaced apart to increase the negative pressure adsorption area and prevent a single hole from being too large to cause the filter rod to fall in.

[0069] The embodiment of the present invention also provides a composite filter rod forming machine, comprising the filter rod transfer device and a forming device. The filter rod transfer device is configured to sequentially convey at least two different types of filter rod segments to the forming device, and the forming device is used to wrap at least two different types of filter rod segments with forming paper.

[0070] like Figure 1 and Figure 2 As shown, a guide structure 40 is provided between the filter rod adapter and the forming device. The guide structure 40 has a guide groove, and the filter rod segments are transported by the filter rod adapter and sequentially reach the guide structure 40 and enter the inside of the forming device under the guidance of the guide structure 40.

[0071] In some embodiments, the plurality of filter rod segments may also include a cavity segment, so the filter rod adapter can add a gap between two adjacent filter rod segments to form a cavity segment during transportation. This requires effective control of the conveying rhythm of the filter rod adapter.

[0072] The embodiment of the present invention further provides a control method based on the composite filter rod forming machine, comprising the following steps:

[0073] Control the transfer plate of the filter rod transfer device to rotate and simultaneously start the negative pressure device to continuously form negative pressure at the negative pressure adsorption hole;

[0074] Real-time detection of the moving speed of the filter rod segment on the receiving surface; and

[0075] The negative pressure at the negative pressure adsorption hole is adjusted in real time according to the moving speed.

[0076] The control method of the composite filter rod forming machine of the embodiment of the present invention detects the moving speed of the filter rod segment in real time, and adjusts the negative pressure of the vacuum chamber 12 in real time according to the moving speed of the filter rod segment, so as to better absorb the detached particles while ensuring the normal transportation of the filter rod segment.

[0077] In some embodiments, adjusting the negative pressure at the negative pressure adsorption hole according to the moving speed includes: when the moving speed is less than the set speed, reducing the negative pressure at the negative pressure adsorption hole; when the moving speed is greater than the set speed, increasing the negative pressure at the negative pressure adsorption hole.

[0078] like Figures 1 to 5 A filter rod transfer device of a specific embodiment includes a transfer plate 20, a transfer guide 10 and a transition guide 30. A negative pressure adsorption hole 111 is provided on the transfer guide 10. When the cut filter rod segments move into the channel of the transfer guide 10, the accumulated and residual particles will be affected by the suction force of the negative pressure air duct, and these particles will be sucked into the negative pressure air duct from the negative pressure adsorption hole 111, thereby solving the problem of particle accumulation and residue before molding.

[0079] Specifically, the negative pressure adsorption hole 111 is a strip hole. The width of the strip hole is 2 mm. The minimum circumference of the filter rod segment is 16 mm and the diameter is 5.1 mm, so that the part that sinks into the negative pressure adsorption hole 111 is 0.2 mm, which does not affect the movement of the filter rod. In addition, the size of the particles is generally between 20 and 40 meshes, so the size of the negative pressure adsorption hole 111 is sufficient for the particles to be sucked in.

[0080] The filter rod adapter of this embodiment has at least the following advantages:

[0081] Reduce blockage: effectively reduce particle accumulation and blockage at the transfer guide rail and improve the smoothness of the conveying channel.

[0082] Improve production efficiency: Since particles are removed in time, the risk of blockage in the transfer rail area is greatly reduced, ensuring smooth conveying of material sections. This helps reduce equipment downtime and improves the stability and reliability of the overall production line.

[0083] Improve product quality: reduce the impact of particle residue on filter rod quality and improve the overall quality and consistency of the product.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A filter rod transfer device, used to transport the cut filter rod segments to a forming device, characterized in that: include: An adapter plate (20) comprising a plurality of teeth (21) arranged at intervals on a circumferential edge, a filter rod segment accommodating cavity being formed between two adjacent teeth (21) of the plurality of teeth (21), the adapter plate (20) being rotatably arranged around its axis to transport the filter rod segment in the circumferential direction of the adapter plate (20); and A transfer guide rail (10) is arranged downstream in the conveying direction of the transfer plate (20), and the transfer guide rail (10) comprises a receiving surface (11) arranged in the tangential direction of the transfer plate (20), the receiving surface (11) being used to receive the filter rod segments conveyed by the transfer plate (20), and negative pressure adsorption holes (111) are constructed on the receiving surface (11), and the negative pressure adsorption holes (111) are configured to continuously generate negative pressure during the transportation process of the transfer plate (20) so as to continuously adsorb particles that fall onto the receiving surface (11).

2. The filter rod adapter according to claim 1, characterized in that: The receiving surface (11) is configured as an inclined surface.

3. The filter rod adapter according to claim 2, characterized in that: The transfer guide rail (10) comprises a first plane (10a) and a second plane (10b); the second plane (10b) is arranged obliquely relative to the first plane (10a); a groove is provided on the second plane (10b); and the bottom surface of the groove forms the receiving surface.

4. The filter rod adapter according to claim 3, characterized in that: The filter rod transfer device further comprises a transition guide rail (30) arranged on the first plane (10a); the transition guide rail (30) is arranged radially outside the transfer plate (20) and the guide rail surface of the transition guide rail (30) contacts the shifting teeth (21) of the transfer plate (20); when the transfer plate (20) transfers the filter rod segment to the transition guide rail (30), two adjacent shifting teeth contact the two ends of the guide rail surface of the transition guide rail (30) respectively; the groove extends to the first plane (10a) and smoothly butts against the guide rail surface of the transition guide rail (30).

5. The filter rod adapter according to any one of claims 1 to 4, characterized in that: The transfer guide rail (10) further comprises a vacuum chamber (12) arranged on the lower side of the receiving surface (11), wherein the vacuum chamber (12) is connected to the negative pressure adsorption hole (111) to provide negative pressure.

6. The filter rod adapter according to claim 5, characterized in that: The vacuum chamber (12) comprises a first chamber (121) and a second chamber (122); the flow area of ​​the first chamber (121) is smaller than the flow area of ​​the second chamber (122).

7. The filter rod adapter according to claim 5, characterized in that: The negative pressure of the vacuum chamber (12) is configured to be adjustably set.

8. The filter rod adapter according to claim 7, characterized in that: The filter rod adapter further comprises a controller and a speed detection device connected to the controller by signal, the speed detection device being used to detect the moving speed of the filter rod segment on the receiving surface, and the controller being configured to control the negative pressure of the vacuum chamber (12) according to the moving speed.

9. The filter rod adapter according to claim 1, characterized in that: The negative pressure adsorption hole (111) comprises an elongated hole extending along the conveying direction of the filter rod segment, and the width of the elongated hole is smaller than the diameter of the filter rod.

10. A composite filter rod forming machine, characterized in that: It comprises a filter rod transfer device and a forming device as described in any one of claims 1 to 9, wherein the filter rod transfer device is configured to sequentially convey at least two different types of filter rod segments to the forming device, and the forming device is used to wrap the at least two different types of filter rod segments with forming paper.

11. A control method based on the composite filter rod forming machine according to claim 10, characterized in that: The steps include: Controlling the transfer plate of the filter rod transfer device to rotate and simultaneously turning on the negative pressure device to form negative pressure at the negative pressure adsorption hole; Real-time detection of the moving speed of the filter rod segment on the receiving surface; and The negative pressure at the negative pressure adsorption hole is adjusted in real time according to the moving speed.

12. The control method of the composite filter rod forming machine according to claim 11, characterized in that: Adjusting the negative pressure at the negative pressure adsorption hole according to the moving speed includes: when the moving speed is less than the set speed, reducing the negative pressure at the negative pressure adsorption hole; when the moving speed is greater than the set speed, increasing the negative pressure at the negative pressure adsorption hole.

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