Floating ring of cigarette making machine

Abstract

The utility model discloses a cigarette making machine floating ring which comprises an inner ring, an outer ring and a rubber connecting piece, the rubber connecting piece is connected between the inner ring and the outer ring, annular installation grooves are formed in the inner side and the outer side of the rubber connecting piece, and connecting circular rings are arranged on the sides, close to the rubber connecting piece, of the inner ring and the outer ring in a protruding mode. The connecting ring is inserted into the annular mounting groove in a matched mode and adheres to the rubber connecting piece, a groove is formed in the surface of the connecting ring, a notch allowing the connecting ring to be inserted is formed in the annular mounting groove, and an exhaust channel communicated with the external atmosphere is formed in the end, away from the notch, of the annular mounting groove. According to the floating ring of the cigarette making machine, the bonding area between the rubber connecting piece and the inner ring and the bonding area between the rubber connecting piece and the outer ring are increased, the connection strength is high, gas in the annular installation groove can be automatically exhausted in the installation process, it is guaranteed that bonding faces can be tightly attached, and the bonding strength is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette machine parts, in particular to a floating ring of a cigarette making machine. Background Art

[0002] As an important component of the cigarette making machine, the float ring is mainly used to neatly arrange the cigarettes transmitted from upstream to facilitate accurate cutting.

[0003] On June 6, 2008, the applicant filed a patent application for a "cigarette making machine float ring," which was granted on March 11, 2009 (authorization announcement number CN201204924Y). This patent document describes an outer ring and an inner ring bonded together using rubber. This significantly improves the bonding strength compared to previous methods of bonding only on the bonding surface without holes, thereby extending the service life of the cigarette making machine float ring, reducing maintenance costs, and achieving cost savings. However, after long-term actual use, many problems have been exposed. For example, the connecting surface of the inner and outer rings made of metal is relatively flat, the bonding area between the inner and outer rings and the rubber is small, the effective area of ​​the adhesive is limited, and the bonding strength between the inner and outer rings and the rubber needs to be further strengthened; for example, when bonding, one side of the inner ring and one side of the outer ring need to be inserted into the annular groove of the rubber. During the insertion process, the air in the annular groove is difficult to be completely discharged from the open end of the annular groove, resulting in an increase in the air pressure in the annular groove. The excessive air pressure causes the annular groove to expand outward, which makes it impossible for the rubber to fit tightly with the connecting ends of the inner and outer rings, thereby reducing the bonding reliability.

[0004] In view of this, it is necessary to further improve the float ring of the cigarette making machine to overcome the above problems. Utility Model Content

[0005] The technical problem to be solved by the present invention is that in the prior art, the bonding area between the inner and outer rings and the rubber is small, and the bonding strength needs to be improved. At the same time, the high pressure in the annular groove on the rubber will hinder the close fit between the rubber and the inner and outer rings, resulting in poor bonding reliability. Based on this, the present invention provides a cigarette making machine floating ring with high bonding strength.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a cigarette making machine floating ring, comprising an inner ring, an outer ring and a rubber connecting piece, the rubber connecting piece being connected between the inner ring and the outer ring, annular mounting grooves being provided on the inner and outer sides of the rubber connecting piece, a connecting ring being convexly provided on the side of the inner ring and the outer ring close to the rubber connecting piece, the connecting ring being inserted into the annular mounting groove and bonded to the rubber connecting piece, a groove being provided on the surface of the connecting ring, the annular mounting groove being provided with a notch for inserting the connecting ring, and an exhaust passage being provided at one end of the annular mounting groove away from the notch for communicating with the external atmosphere.

[0007] Furthermore, the groove is provided on the upper surface and / or the lower surface of the connecting ring.

[0008] Furthermore, the groove is an annular groove concentric with the inner ring, and the cross section of the annular groove is arc-shaped.

[0009] Furthermore, three annular grooves are provided on the upper surface and the lower surface of the connecting ring, and the three annular grooves are arranged at equal intervals.

[0010] Furthermore, one end of the exhaust channel passes through the groove wall of the annular mounting groove, and the other end of the exhaust channel passes through the outer surface of the rubber connector.

[0011] Furthermore, there are a plurality of exhaust channels, and the plurality of exhaust channels are evenly distributed along the circumference of the rubber connector.

[0012] Furthermore, a through hole is opened on the connecting ring along the axial direction of the connecting ring, and the through hole penetrates the upper surface and the lower surface of the connecting ring at the same time.

[0013] Furthermore, edges at both ends of the through hole are chamfered.

[0014] Furthermore, a mounting hole is provided on the side wall of the inner ring below the connecting ring and along the radial direction of the inner ring.

[0015] The beneficial effects of the present invention are as follows: the floating ring of the cigarette making machine of the present invention increases the bonding area between the connecting ring and the rubber connecting piece by providing the groove, thereby improving the connection strength between the connecting ring and the annular mounting groove, and preventing the connecting ring from easily detaching; at the same time, by providing the exhaust channel, when the connecting ring is installed, the gas in the annular mounting groove will flow into the external atmosphere through the exhaust channel, preventing the annular mounting groove from expanding outward, ensuring that the groove wall of the annular mounting groove is tightly fitted with the connecting ring, and further enhancing the bonding strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a cross-sectional view of the floating ring of the cigarette making machine of the present invention;

[0018] Figure 2 yes Figure 1 A top view of the inner ring of the floating ring of the cigarette making machine shown;

[0019] Figure 3 yes Figure 1 A top view of the outer ring of the floating ring of the cigarette making machine shown;

[0020] Figure 4 yes Figure 3 The outer ring is shown in a cross-sectional view along BB;

[0021] Figure 5 yes Figure 1 A partial enlarged view of point A in the floating ring of the cigarette making machine is shown.

[0022] In the figure: 1, inner ring, 120, connecting ring, 1201, groove, 1202, through hole, 11, mounting hole, 2, outer ring, 3, rubber connector, 31, annular mounting groove, 311, notch, 32, exhaust channel. DETAILED DESCRIPTION

[0023] The present invention will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.

[0024] See also Figure 1-Figure 5 The utility model provides a floating ring for a cigarette making machine, comprising an inner ring 1, an outer ring 2 and a rubber connecting piece 3 arranged coaxially. The inner ring 1, the outer ring 2 and the rubber connecting piece 3 are all annular structures. The rubber connecting piece 3 is connected between the inner ring 1 and the outer ring 2. An annular mounting groove 31 is provided on the inner and outer sides of the rubber connecting piece 3. A connecting ring 120 is convexly provided on one side of the inner ring 1 and the outer ring 2 close to the rubber connecting piece 3. The connecting ring 120 is inserted into the annular mounting groove 31 and adhered to the rubber connecting piece 3. A groove 1201 is provided on the surface of the connecting ring 120. The annular mounting groove 31 has a notch 311 for inserting the connecting ring 120. An exhaust passage 32 connected to the external atmosphere is provided at one end of the annular mounting groove 31 away from the notch 311.

[0025] When assembling the floating ring of the cigarette making machine of the present invention, first fix the inner ring 1 and the outer ring 2 on the mold, then place the rubber connecting piece 3 between the inner ring 1 and the outer ring 2, and then apply adhesive on the connecting ring 120. Then, the annular mounting groove 31 on the outer side of the rubber connecting piece 3 is fitted onto the connecting ring 120 of the outer ring 2, and the annular mounting groove 31 on the inner side of the rubber connecting piece 3 is fitted onto the connecting ring 120 of the inner ring 1. After the adhesive dries, the rubber connecting piece 3 can be firmly bonded and fixed between the inner ring 1 and the outer ring 2.

[0026] Because the surface of the connecting ring 120 includes the groove 1201, the contact area between the connecting ring 120 and the wall of the annular mounting groove 31 is increased, thereby increasing the effective area of ​​the adhesive and improving the connection strength between the connecting ring 120 and the annular mounting groove 31, thereby preventing the connecting ring 120 from easily separating from the annular mounting groove 31. In addition, when the rubber connector 3 is inserted into the connecting ring 120 through the annular mounting groove 31, the gas in the annular mounting groove 31 is compressed. The compressed gas can promptly flow into the external atmosphere through the exhaust channel 32, preventing the annular mounting groove 31 from expanding outward, ensuring that the wall of the annular mounting groove 31 and the connecting ring 120 are tightly fitted, and further enhancing the bonding strength.

[0027] The groove 1201 is provided on the upper surface and / or lower surface of the connecting ring 120 . In this embodiment, the groove 1201 is provided on both the upper surface and the lower surface of the connecting ring 120 to increase the bonding area between the connecting ring 120 and the rubber connector 3 .

[0028] In a preferred embodiment, groove 1201 is an annular groove concentric with the inner ring 1 and has an arcuate cross-section. Compared to strip-shaped grooves extending radially along the connecting ring 120, the annular groove better locks the adhesive when the connecting ring 120 is inserted into the annular mounting groove 31, effectively reducing leakage from the notch 31. Furthermore, three annular grooves are provided on both the upper and lower surfaces of the connecting ring 120, and are arranged at equal intervals. It is understood that the number of grooves 1201 can be customized as needed and is not limited here.

[0029] One end of the exhaust passage 32 extends through the wall of the annular mounting groove 31, and the other end extends through the outer surface of the rubber connector 3. This allows the high-pressure gas to push the exhaust passage 32 open when the gas pressure within the annular mounting groove 31 increases, allowing the gas to flow into the outside atmosphere. It should be noted that the exhaust passage 32 is designed to be narrow. Under normal conditions, the elastic force of the rubber connector 3 closes the exhaust passage 32. Only when the connecting ring 120 is installed and the air pressure within the annular mounting groove 31 increases can the exhaust passage 32 be pushed open. While achieving the exhaust function, the narrow exhaust passage 32 also ensures the structural strength of the rubber connector 3, avoiding the situation where the structural strength of the rubber connector 3 is poor due to an oversized exhaust passage 32.

[0030] As a preferred embodiment, there are multiple exhaust channels 32, and the multiple exhaust channels 32 are evenly distributed along the circumference of the rubber connector 3. In this way, when the connecting ring 120 is installed, the gas in the annular mounting groove 31 can flow out from multiple locations of the rubber connector 3, which facilitates rapid exhaust of the gas.

[0031] A through hole 1202 is formed in the connecting ring 120 along its axial direction. The through hole 1202 extends through both the upper and lower surfaces of the connecting ring 120. In this embodiment, there are four through holes 1202. Due to the provision of through holes 1202, when the connecting ring 120 extends the annular mounting groove 31 outward and is installed within the annular mounting groove 31, the portion of the groove wall of the annular mounting groove 31 corresponding to the through hole 1202 will elastically extend into the through hole 1202. The portion of the rubber connector 3 that extends into the through hole 1202 further enhances the locking effect on the connecting ring 120 and further prevents the connecting ring 120 from easily falling out of the annular mounting groove 31. Furthermore, the edges of the through holes 1202 at both ends are rounded to prevent damage to the rubber connector 3 during installation.

[0032] In addition, a mounting hole 11 is provided on the side wall of the inner ring 1 below the connecting ring 120 along the radial direction of the inner ring 1. When in use, the mounting hole 11 is used to install bolts, thereby fixing the inner ring 1 to the cigarette making machine by bolts.

[0033] The floating ring of the cigarette making machine of the present invention increases the bonding area between the connecting ring 120 and the rubber connecting member 3 by providing the groove 1201, thereby improving the connection strength between the connecting ring 120 and the annular mounting groove 31 and preventing the connecting ring 120 from being easily detached. At the same time, by providing the exhaust channel 32, when the connecting ring 120 is installed, the gas in the annular mounting groove 31 will flow into the external atmosphere through the exhaust channel 32, preventing the annular mounting groove 31 from expanding outward, ensuring that the groove wall of the annular mounting groove 31 is tightly fitted with the connecting ring 120, and further enhancing the bonding strength.

[0034] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the scope of the present invention. The technical scope of this utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cigarette making machine float ring, comprising an inner ring, an outer ring, and a rubber connector, wherein the rubber connector is connected between the inner ring and the outer ring, characterized in that: Annular mounting grooves are provided on the inner and outer sides of the rubber connector, and a connecting ring is protruded on the side of the inner ring and the outer ring close to the rubber connector. The connecting ring is inserted into the annular mounting groove and adhered to the rubber connector. A groove is provided on the surface of the connecting ring, and the annular mounting groove has a notch for inserting the connecting ring. An exhaust channel connected to the external atmosphere is provided on the end of the annular mounting groove away from the notch.

2. The cigarette making machine float ring according to claim 1, characterized in that: The groove is arranged on the upper surface and / or the lower surface of the connecting ring.

3. The cigarette making machine float ring according to claim 2, characterized in that: The groove is an annular groove concentric with the inner ring, and the cross section of the annular groove is arc-shaped.

4. The cigarette making machine float ring according to claim 3, characterized in that: Three annular grooves are provided on the upper surface and the lower surface of the connecting ring, and the three annular grooves are arranged at equal intervals.

5. The cigarette making machine float ring according to claim 1, characterized in that: One end of the exhaust channel passes through the groove wall of the annular mounting groove, and the other end of the exhaust channel passes through the outer surface of the rubber connecting piece.

6. The floating ring of a cigarette making machine according to claim 5, characterized in that: There are a plurality of exhaust channels, and the plurality of exhaust channels are evenly distributed along the circumference of the rubber connector.

7. The cigarette making machine float ring according to claim 1, characterized in that: A through hole is opened on the connecting ring along the axial direction of the connecting ring, and the through hole passes through the upper surface and the lower surface of the connecting ring at the same time.

8. The floating ring of a cigarette making machine according to claim 7, characterized in that: The edges of both ends of the through hole are chamfered.

9. The floating ring of a cigarette making machine according to claim 7, characterized in that: A mounting hole is provided on the side wall of the inner ring below the connecting ring and along the radial direction of the inner ring.

Images