A distribution plate and a cigarette making machine

Abstract

The utility model provides a kind of gas distribution disc and roll joint machine, the gas distribution disc includes gas distribution disc main body, and the end face of gas distribution disc main body in axial direction is equipped with negative pressure groove and positive pressure groove, and the groove bottom of negative pressure groove and the groove bottom of positive pressure groove are equipped with air hole along the axial direction of gas distribution disc main body and penetrate gas distribution disc main body;Fixed disc is set to the opposite other end of the one end of gas distribution disc main body and is equipped with negative pressure groove and positive pressure groove;Elastic assembly is set between gas distribution disc main body and fixed disc, and elastic assembly includes support part and connecting part, and support part is elastically connected with connecting part, and support part is set to gas distribution disc main body, and connecting part is set to fixed disc.The gas distribution disc can limit to reduce the situation of abnormal wear, ensure the air tightness of negative pressure groove and positive pressure groove, avoid adsorption pressure leakage, realize dynamic compensation clearance generated by drum end face runout or gas distribution disc wear, solve the problem of negative pressure leakage caused by one-sided eccentric wear of original fixed gas distribution disc, and ensure production quality.

Description

Technical Field

[0001] This application relates to the field of tobacco cigarette making machine technology, and in particular to a gas distribution plate and a cigarette making machine. Background Technology

[0002] In the tipping paper cutting drum system, the negative pressure adsorption function is achieved by generating suction air through an independent vacuum pump, which is then transported through pipelines to a fixed graphite air distribution plate at the end of the drum body. This air distribution plate is rigidly mounted on the valve seat surface, and its interior has two sets of annular air grooves (alternating between negative pressure grooves and high pressure grooves), which are respectively connected to the vacuum pump's negative pressure source and the compressed air's positive pressure source. The arc length and phase angle of the annular grooves are precisely set according to the timing requirements of tipping paper adsorption, separation, and cleaning within the drum's rotation cycle. When the drum rotates, the suction holes distributed on its end face align sequentially with the negative pressure grooves of the air distribution plate, and the negative pressure air is transmitted to the drum surface through the air holes at the bottom of the grooves, adsorbing the tipping paper for precise positioning and cutting. When the suction holes switch to the high pressure groove area, compressed air is blown in the opposite direction to remove residual paper scraps.

[0003] The existing fixed air distribution plate is subjected to axial runout and eccentric stress on the drum end face for a long time, which causes abnormal preferential wear in the right side area (facing the paper feeding direction), resulting in failure of the negative pressure annular groove seal and leakage of adsorption pressure, which in turn leads to quality problems such as tipping paper conveying deviation, wrinkles or even falling off.

[0004] Therefore, a new type of valve distribution plate needs to be designed to solve the above problems. Utility Model Content

[0005] In view of this, in order to overcome the defects of the prior art, this utility model provides an air distribution plate and a winding machine, which effectively solves the quality problems caused by abnormal preferential wear of the existing air distribution plate, which leads to the failure of the negative pressure annular groove seal, leakage of adsorption pressure, and thus causes the tipping paper to deviate, wrinkle or even fall off.

[0006] According to a first aspect of the present invention, a distribution plate is provided, wherein the distribution plate includes a distribution plate body, a negative pressure groove and a positive pressure groove are formed on one end face of the distribution plate body in the axial direction, and air holes penetrating the distribution plate body along the axial direction of the distribution plate body are formed at the bottom of the negative pressure groove and the bottom of the positive pressure groove; a fixed plate is disposed at the opposite end of the distribution plate body where the negative pressure groove and the positive pressure groove are formed; and an elastic component is disposed between the distribution plate body and the fixed plate, the elastic component including a supporting part and a connecting part, the supporting part being elastically connected to the connecting part, the supporting part being disposed on the distribution plate body, and the connecting part being disposed on the fixed plate.

[0007] Preferably, a support hole extending to the lower surface is provided at the center of the upper surface of the main body of the air distribution plate, and the negative pressure groove and the positive pressure groove surround the support hole.

[0008] Preferably, there are multiple negative pressure grooves and multiple positive pressure grooves, and the multiple negative pressure grooves and multiple positive pressure grooves alternately surround the support hole in a clockwise direction.

[0009] Preferably, a sealing ring is embedded at the end of the vent facing the fixed plate.

[0010] Preferably, there are multiple elastic components, which are spaced apart between the gas distribution plate body and the fixed plate.

[0011] Preferably, the fixing plate includes a plate body, the plate body having a plurality of fixing holes extending in the axial direction, and the fixing plate being connected to the main body of the air distribution plate through the fixing holes.

[0012] Preferably, the support portion includes a spring and a connecting rod, the connecting portion includes a connecting pipe and a flange, the connecting pipe is provided with the flange, the connecting portion is connected to the fixed plate through the flange, the connecting rod is connected to the connecting pipe through the spring, and the support portion is connected to the main body of the air distribution plate through the connecting rod.

[0013] Preferably, the connecting rod can pass through the connecting tube, the inner wall of the connecting tube is provided with a limiting strip, the outer wall of the connecting rod is provided with a limiting groove, and the connecting rod is slidably disposed in the connecting tube through the cooperation of the limiting strip and the limiting groove.

[0014] Preferably, there are multiple limiting strips and multiple limiting slots, and the multiple limiting strips are arranged in a one-to-one correspondence with the multiple limiting slots.

[0015] According to a second aspect of the present invention, a winding machine is provided, wherein the winding machine includes a gas distribution plate as described above.

[0016] According to this utility model, the air distribution plate, through the cooperation of the air distribution plate body, fixed plate, and elastic component, can ensure the airtightness of the negative pressure groove and positive pressure groove while minimizing abnormal wear, thus preventing adsorption pressure leakage. By using the elastic component to connect the air distribution plate body and the fixed plate, the air distribution plate body is kept in close contact with the end face of the rotating paper cutting drum under the action of continuous elastic force, realizing dynamic compensation for the gap caused by drum end face runout or air distribution plate wear. This effectively solves the negative pressure leakage problem caused by unilateral wear of the original fixed air distribution plate, and can solve production quality problems such as tipping paper conveying deviation, wrinkles, or falling off. The overall structure of this air distribution plate is simple and compact, which can significantly improve the negative pressure holding capacity and system sealing reliability, thereby ensuring the adsorption stability and cleaning effect of tipping paper, and extending the service life of the air distribution plate.

[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the valve plate according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the lower part of the valve plate according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the structure of an elastic component according to an embodiment of the present invention is shown.

[0020] Reference numerals in the attached drawings: 1-Vacuum distribution plate body; 2-Support hole; 3-First negative pressure annular groove; 4-First positive pressure annular groove; 5-Second negative pressure annular groove; 6-Second positive pressure annular groove; 7-Air hole; 8-Sealing ring; 9-Fixing plate; 10-Plate body; 11-Fixing hole; 12-Elastic component; 13-Connecting pipe; 14-Flange; 15-Limiting strip; 16-Spring component; 17-Connecting rod; 18-Limiting groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] According to a first aspect of this utility model, a valve plate is provided, such as... Figures 1 to 3 As shown, this air distribution plate is used in the cork paper cutting drum system, and can dynamically compensate for the gaps caused by drum end face runout or air distribution plate wear, ensuring airtightness during operation. The air distribution plate includes an air distribution plate body 1, a fixed plate 9, and an elastic component 12.

[0026] In the following description, reference will be made to Figures 1 to 3 The detailed structure of the valve plate body 1, the fixed plate 9, and the elastic component 12 is described in detail.

[0027] like Figures 1 to 3 As shown, in this embodiment, the elastic component 12 is disposed between the air distribution plate body 1 and the fixed plate 9. The elastic component 12 can dynamically compensate for the gap caused by the runout of the drum end face or the wear of the air distribution plate.

[0028] Specifically, the main body 1 of the air distribution plate can be formed into a disc-shaped structure. One end face of the disc-shaped structure in the axial direction has a negative pressure groove and a positive pressure groove (i.e., the high-pressure groove mentioned in the background art). Negative pressure suction is transmitted to the drum surface through the air holes at the bottom of the negative pressure groove, adsorbing the cork paper for precise positioning and cutting. The suction holes, through the positive pressure groove, allow compressed air to blow in the opposite direction, removing residual paper scraps. The circumferential dimensions of the negative pressure groove and the positive pressure groove in the air distribution plate main body 1 can be different; that is, the lengths of the negative pressure groove and the positive pressure groove can be reasonably opened according to usage requirements. To achieve the functions of gas adsorption and purging, the bottom of the negative pressure groove and the bottom of the positive pressure groove have air holes 7 penetrating the air distribution plate main body 1 along the axial direction.

[0029] Furthermore, the fixed plate 9 is located at the opposite end of the valve distribution plate body 1, where the negative pressure groove and the positive pressure groove are located. Figure 1 In the middle, the negative pressure groove and the positive pressure groove are opened on the top surface of the air distribution plate body 1, and the fixed plate 9 is set at the bottom of the air distribution plate body 1; Furthermore, the elastic component 12 is disposed between the valve body 1 and the fixed plate 9. The elastic component 12 may include a support part and a connecting part. The support part and the connecting part are elastically connected to achieve dynamic compensation. The support part is disposed on the valve body 1, and the connecting part is disposed on the fixed plate 9.

[0030] This air distribution plate, through the cooperation of the air distribution plate body 1, the fixed plate 9, and the elastic component 12, can ensure the airtightness of the negative pressure groove and the positive pressure groove while minimizing abnormal wear, thus preventing adsorption pressure leakage. By using the elastic component 12 to connect the air distribution plate body 1 and the fixed plate 9, the air distribution plate body 1 is kept in close contact with the end face of the rotating paper cutting drum under the action of continuous elastic force. This dynamically compensates for the gaps caused by drum end face runout or air distribution plate wear, effectively solving the negative pressure leakage problem caused by unilateral wear of the original fixed air distribution plate. It can also solve production quality problems such as tipping paper conveying deviation, wrinkles, or detachment. The overall structure of this air distribution plate is simple and compact, which can significantly improve the negative pressure holding capacity and system sealing reliability, thereby ensuring the adsorption stability and cleaning effect of tipping paper and extending the service life of the air distribution plate.

[0031] Preferably, such as Figure 1 and Figure 2As shown, in this embodiment, a support hole 2 extending through to the lower surface is provided at the center of the upper surface of the air distribution plate body 1, and negative pressure grooves and positive pressure grooves surround the support hole 2. The air distribution plate body 1 is installed on the tipping paper cutting drum system through the support hole 2.

[0032] Preferably, such as Figure 1 and Figure 2 As shown, in this embodiment, there are multiple negative pressure grooves and multiple positive pressure grooves, which alternately surround the support hole 2 in a clockwise direction. In this embodiment, the air distribution plate body 1 is provided with a first negative pressure annular groove 3, a first positive pressure annular groove 4, a second negative pressure annular groove 5, and a second positive pressure annular groove 6 alternately in a clockwise direction.

[0033] Preferably, such as Figure 1 and Figure 2 As shown, in this embodiment, a sealing ring 8 is embedded at the end of the vent 7 facing the fixed disk 9. The sealing ring 8 is directly opposite the vent 7, and the inner diameters of the sealing ring 8 and the vent 7 are the same. The sealing ring 8 can improve the sealing performance and, together with the elastic component 12, the negative pressure groove, and the positive pressure groove, forms a double sealing structure, which significantly improves the negative pressure retention capacity and the system sealing reliability. There are multiple vents 7, which are evenly arranged on the air distribution plate body 1, and the sealing rings 8 are arranged in a one-to-one correspondence with the vents 7.

[0034] Preferably, such as Figure 1 and Figure 2 As shown in the embodiment, since both the air distribution plate body 1 and the fixed plate 9 are formed into a disc-shaped structure, in order to ensure stable connection and uniform elastic support force, there are multiple elastic components 12, which are spaced apart between the air distribution plate body 1 and the fixed plate 9.

[0035] Preferably, such as Figure 1 and Figure 2 As shown, in this embodiment, the fixed plate 9 includes a plate body 10, which has multiple axially penetrating fixing holes 11. The fixed plate 9 is connected to the air distribution plate body 1 through the fixing holes 11. The fixed plate 9 can be connected to the air distribution plate body 1 by using fastening bolts, which pass through the fixing holes 11. To ensure a stable connection, there are multiple fixing holes 11.

[0036] Preferably, such as Figures 1 to 3As shown, in this embodiment, the support portion may include a spring member 16 and a connecting rod 17, and the connecting portion may include a connecting pipe 13 and a flange member 14. The connecting pipe 13 is provided with the flange member 14, and the connecting portion is connected to the fixed plate 9 through the flange member 14. Multiple bolt connection holes are provided on the outer periphery of the flange member 14, and the flange member 14 is connected to the fixed plate 9 by fastening bolts. The connecting rod 17 is connected to the connecting pipe 13 through the spring member 16, and the support portion is connected to the air distribution plate body 1 through the connecting rod 17. The connecting rod 17 can be welded to the air distribution plate body 1.

[0037] Preferably, such as Figures 1 to 3 As shown, in this embodiment, the connecting rod 17 can pass through the connecting pipe 13. The inner wall of the connecting pipe 13 is provided with a limiting strip 15, and the outer wall of the connecting rod 17 is provided with a limiting groove 18. The connecting rod 17 is slidably disposed on the connecting pipe 13 through the cooperation of the limiting strip 15 and the limiting groove 18.

[0038] Preferably, such as Figures 1 to 3 As shown, in the embodiment, there are multiple limiting bars 15 and multiple limiting grooves 18, and the multiple limiting bars 15 are set in a one-to-one correspondence with the multiple limiting grooves 18.

[0039] The working principle of the air distribution plate is as follows: the air distribution plate body 1 is fixed to the fixed plate 9 with bolts through the fixing holes 11 of the fixed plate 9. The air distribution plate body 1 is suspended above the fixed plate 9 through the elastic component 12. Under the continuous elastic force of the spring component 16, the upper surface of the air distribution plate body 1 is always in close contact with the end face of the rotating paper cutting drum. During operation, the rotation of the paper cutting drum causes the suction holes on its end face to sweep across the first negative pressure annular groove 3, the first positive pressure annular groove 4, the second negative pressure annular groove 5, and the second positive pressure annular groove 6 opened on the air distribution plate body 1 in sequence. When the suction hole is connected to the first negative pressure annular groove 3 or the second negative pressure annular groove 5, the negative pressure suction air provided by the vacuum pump is transmitted to the suction hole of the drum through the air hole 7 of the air distribution plate body 1 to realize the function of adsorbing water-laden paper. When the suction hole is connected to the first positive pressure annular groove 4 or the second positive pressure annular groove 6, the high pressure gas is blown into the suction hole of the drum through the corresponding air hole 7 to complete the cleaning. During this process, the elastic component 12 dynamically compensates for wear or vibration gaps through the spring component 16, and the cooperation between the limiting strip 15 and the limiting groove 18 prevents the connecting rod 17 and the connecting pipe 13 from rotating relative to each other, ensuring stable sealing contact between the air distribution plate body 1 and the drum end face, thereby eliminating negative pressure leakage.

[0040] This air distribution plate, through the cooperation of its main body, fixed plate, and elastic components, can ensure the airtightness of the negative and positive pressure grooves and prevent adsorption pressure leakage while minimizing abnormal wear. By using elastic components to connect the air distribution plate main body to the fixed plate, the air distribution plate main body maintains a tight fit against the rotating paper-cutting drum end face under continuous elastic force. This dynamically compensates for gaps caused by drum end face runout or air distribution plate wear, effectively solving the negative pressure leakage problem caused by unilateral wear of the original fixed air distribution plate. It can also resolve production quality issues such as tipping paper conveying deviation, wrinkles, or detachment. The overall structure of this air distribution plate is simple and compact, significantly improving negative pressure retention capacity and system sealing reliability, thereby ensuring the stability and cleaning effect of tipping paper adsorption and extending the service life of the air distribution plate.

[0041] Furthermore, according to a second aspect of this utility model, a winding and splicing machine is provided, which includes the air distribution plate as described above. During use, the air distribution plate described above can prevent production quality problems such as tipping paper feed deviation, wrinkles, or even detachment, thereby improving production quality and efficiency.

[0042] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A valve distribution plate, characterized in that, The valve distribution plate includes: The main body of the air distribution plate has a negative pressure groove and a positive pressure groove on one end face in the axial direction. The bottom of the negative pressure groove and the bottom of the positive pressure groove have air holes that penetrate the main body of the air distribution plate along the axial direction of the main body. A fixed plate is disposed at the opposite end of the main body of the air distribution plate where the negative pressure groove and the positive pressure groove are located; An elastic component is disposed between the valve plate body and the fixed plate. The elastic component includes a support portion and a connecting portion. The support portion and the connecting portion are elastically connected. The support portion is disposed on the valve plate body, and the connecting portion is disposed on the fixed plate.

2. The valve plate according to claim 1, characterized in that, A support hole extending to the lower surface is provided at the center of the upper surface of the main body of the air distribution plate, and the negative pressure groove and the positive pressure groove surround the support hole.

3. The valve plate according to claim 2, characterized in that, The number of negative pressure grooves and the number of positive pressure grooves are multiple, and the multiple negative pressure grooves and the multiple positive pressure grooves alternately surround the support hole in a clockwise direction.

4. The valve plate according to claim 1, characterized in that, A sealing ring is embedded at the end of the air hole facing the fixed plate.

5. The valve plate according to claim 2, characterized in that, The number of elastic components is multiple, and the multiple elastic components are spaced apart between the gas distribution plate body and the fixed plate.

6. The valve plate according to claim 1, characterized in that, The fixed plate includes a plate body, which has a plurality of fixing holes extending along the axial direction. The fixed plate is connected to the main body of the air distribution plate through the fixing holes.

7. The valve plate according to claim 6, characterized in that, The support portion includes a spring and a connecting rod, the connecting portion includes a connecting pipe and a flange, the connecting pipe is provided with the flange, the connecting portion is connected to the fixed plate through the flange, the connecting rod is connected to the connecting pipe through the spring, and the support portion is connected to the main body of the air distribution plate through the connecting rod.

8. The valve plate according to claim 7, characterized in that, The connecting rod can pass through the connecting tube. The inner wall of the connecting tube is provided with a limiting strip, and the outer wall of the connecting rod is provided with a limiting groove. The connecting rod is slidably disposed in the connecting tube through the cooperation of the limiting strip and the limiting groove.

9. The valve plate according to claim 8, characterized in that, The number of the limiting strips and the number of the limiting slots are both multiple, and the multiple limiting strips are set one-to-one with the multiple limiting slots.

10. A winding and splicing machine, characterized in that, The winding machine includes the air distribution plate according to any one of claims 1 to 9.

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