Steel-seal-free paper supply transmission mechanism for printing system of cigarette making and plug assembling machine

Abstract

The utility model relates to the technical field of cigarette making and plug assembling machine printing systems, in particular to a steel seal-free paper supply transmission mechanism for a cigarette making and plug assembling machine printing system, which comprises a tensioning transmission component arranged between a paper receiving device and a second paper supply transmission mechanism, the front portion of the tensioning transmission assembly can be connected to the paper supply roller through a shaft, and the tensioning transmission assembly can convey cigarette paper output by the paper receiving device through the paper supply roller and convey the cigarette paper to the second paper supply transmission mechanism. The rear portion of the tensioning transmission assembly is in transmission connection with a power source of the printing system through a belt chain. The steel-seal-free paper supply transmission mechanism for the printing system of the cigarette making and plug assembling machine can adapt to steel-seal-free cigarette production, due to the fact that the structure is simple, transmission fault hidden dangers of a paper supply roller during steel-seal-free cigarette production are reduced, oil leakage risks are eliminated due to the fact that oil injection lubrication inside the transmission structure is changed into lubricating grease lubrication, the disassembly time is short, and the repair cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette rolling machine printing system, in particular to a steel-print-free paper supply transmission mechanism for a cigarette rolling machine printing system. Background Art

[0002] The paper supply and printing system of the cigarette rolling machine is mainly composed of a cigarette paper tension compensation device, a printing device, a paper supply roller, etc., which is used to complete the cigarette paper supply and trademark printing tasks. The ZJ17 unit has two sets of printing devices, each of which is composed of an ink roller, an ink transfer roller, a steel printing roller, an ink distribution roller, an embossing roller, etc., and each completes the printing of a color trademark online. The paper supply and transmission diagram of the ZJ17 cigarette printing system, refer to Figure 1 As shown, when the paper tray 1 is working, the cigarette paper is pulled by the paper feeder 2 and the first paper feeding transmission mechanism 3, and then passes through the cigarette paper tension compensation device 4, enters the first steel stamp 5 and the second steel stamp 6 for trademark printing, and is then pulled by the second paper feeding transmission mechanism 7 through the paper guide 8 to enter the rolling forming system.

[0003] At present, the first paper feeding transmission mechanism 3 mainly includes: a paper feeding roller 31, a paper pressing roller 32, a differential gear mechanism, a servo motor and a transmission. Figure 2 , Figure 2 The partial three-dimensional structure diagram of the first paper feeding transmission mechanism 3 located at the front of the printing system is shown, wherein the differential gear mechanism, servo motor and transmission are all located at the rear of the printing system, which is an integrated overall structure and is not shown here. The compensation device 4 is mainly composed of a compensation roller and a proximity switch, etc. When the cigarette paper tension changes, the compensation roller swings up and down to open the proximity switch, and the proximity switch sends a signal to the servo motor, which drives the operation of the differential gear, and then adjusts the running speed of the paper feeding roller through the operation of the differential gear, so that the speed of the paper feeding roller is stabilized within the speed required for production and printing, ensuring that the steel stamp can be accurately printed on the cigarette paper printing position.

[0004] Although the first paper feeding transmission mechanism can realize printing with steel stamp, when producing cigarettes without steel stamp, the cigarette paper still needs to be transmitted through the compensation device and differential gear. In conjunction with the compensation device, the differential gear mechanism still needs to continue to work during the production process, which makes the cigarette paper have more and unnecessary stress points, and paper breaks often occur; and the first paper feeding transmission mechanism is integrated by the paper pressing roller, differential gear, servo motor and transmission. In order to realize the differential gear to adjust the speed of the first paper feeding roller, the internal structure is a planetary gear structure, which needs to be lubricated separately, resulting in high equipment maintenance costs and complex internal structure. Mechanical failures such as bearing damage, gear damage, shaft wear, oil leakage, etc. often occur. After each failure, it is necessary to consider both electrical failure and mechanical failure at the same time, which increases the difficulty of maintenance and disassembly, reducing production efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a paper supply transmission mechanism without steel stamp for a cigarette rolling machine printing system in view of the problems that the paper supply transmission mechanism in the prior art has many and unnecessary stress points on the cigarette paper during printing without steel stamp paper supply, and paper breaks often occur and the failure rate is high, comprising: a tensioning transmission assembly and a transition transmission assembly arranged between a paper splicer and a second paper supply transmission mechanism; the front portion of the tensioning transmission assembly can be axially connected to a paper supply roller, and the tensioning transmission assembly can transmit the cigarette paper output from the paper splicer through the paper supply roller, and transmit the cigarette paper to the second paper supply transmission mechanism; the rear portion of the tensioning transmission assembly is connected to the transition transmission assembly through a belt chain transmission, and is transmission-connected to a power source of the printing system.

[0006] The utility model discloses a paper feeding transmission mechanism without steel stamp for use in a printing system of a cigarette rolling machine, which replaces the integrated structures such as differential gears and servo motor structures of a traditional first paper feeding roller transmission mechanism by setting a tensioning rotating assembly. The rear part of the tensioning transmission assembly is connected to the power source of the printing system through a belt chain and a transition transmission assembly, and can obtain the power transmitted by the driving motor of the printing system or the first belt pulley. The front part of the paper feeding transmission mechanism is connected to the paper feeding roller through a shaft, and can drive the paper feeding roller to rotate, so that the cigarette paper output by the paper splicer is transmitted to the second paper feeding transmission mechanism through the paper feeding roller, so that the cigarette paper transmitted by the paper splicer does not need to be transmitted to the compensation device for adjustment, and does not need the function of the paper pressing roller, so that in the printing production without steel stamp, the stress points of the cigarette paper on the compensation device and the paper pressing roller can be reduced, the risk of paper breakage is reduced, the failure rate is reduced, and the production efficiency is improved.

[0007] Preferably, the steel-stamp-free paper supply transmission mechanism for the printing system of a cigarette rolling machine described in the utility model, the tensioning transmission assembly includes: a first transmission shaft and a first pulley; the first transmission shaft is connected to and supported on a fixed plate of the printing system through a bearing; one end of the first transmission shaft extends to the front of the fixed plate of the printing system and is fixedly connected to the paper supply roller; the other end of the first transmission shaft extends to the rear of the fixed plate and is axially connected to the first pulley; the first pulley is transmission-connected to the power source.

[0008] As a preferred solution of the utility model, the tensioning transmission assembly is configured to include a first transmission shaft and a first pulley, one end of the first transmission shaft extends to the front of the fixed plate of the printing system and is fixedly connected to the paper feed roller, thereby performing axial transmission on the paper feed roller in front of the fixed plate. The belt chain is connected to the belt chain through the first pulley transmission, so as to directly transmit the power carried by the printing system behind the fixed plate. This is different from the integrated structure of the differential gear, servo motor structure and other integrated structures of the traditional first paper feed roller transmission mechanism, thereby reducing mechanical failures such as gear damage, first transmission shaft wear, and oil leakage. The first pulley transmission is then connected to the belt chain, so the internal structure is simple, the maintenance difficulty is reduced, and it is easy to disassemble, thereby improving production efficiency.

[0009] Preferably, in the steel-stamp-free paper supply transmission mechanism for a cigarette rolling machine printing system described in the utility model, a mounting cavity is provided on the outer side of the first transmission shaft, both ends of the first transmission shaft are axially connected to the mounting cavity through bearings, and the outer wall of the mounting cavity is fixed to the fixed plate.

[0010] As a preferred solution of the utility model, a mounting cavity is arranged on the outer side of the first transmission shaft. Since the two ends of the first transmission shaft are respectively located in front of and behind the fixed plate, and in order to meet the transmission of the paper feed roller, the length of the first transmission shaft is relatively long, the two ends of the first transmission shaft are axially connected to the mounting cavity through bearings, so that both ends of the first transmission shaft have two bearing fulcrums, so that the supporting force is released along the outer wall of the mounting cavity, thereby increasing the supporting area of ​​the first transmission shaft and the bearing, improving the rotation stability of the first transmission shaft, and being able to improve the axial alignment of the two bearings at both ends of the first transmission shaft during the rotation of the first transmission shaft, reducing rotation failures caused by poor alignment of the front and rear ends of the first transmission shaft, and further improving the stability of the operation of the transmission mechanism.

[0011] Preferably, in the utility model, the stamp-free paper supply transmission mechanism for the printing system of the cigarette rolling machine is configured such that the outer wall of the installation cavity close to the first pulley side is configured as a thick-walled section, and the outer wall on the other side is configured as a thin-walled section, and the thick-walled section thickens outwardly relative to the thin-walled section; a flange is provided at a position of the thick-walled section adjacent to the thin-walled section; the outer wall between the flange and the thin-walled section is used to embed the fixing plate; and the flange can be bolted to the fixing plate.

[0012] As a preferred solution of the utility model, by setting the installation cavity as a thick-walled section and a thin-walled section, one side of the first pulley is located behind the fixed plate, the thick-walled section can enhance the supporting strength of the transmission force, and the thin-walled section is used to support the force transmitted by the paper feed roller. An adaptive design is performed according to the different load-bearing sizes at both ends of the first transmission shaft, which can better maintain the stability of the force transmission at both ends of the first transmission shaft, further reduce the failure rate of the transmission mechanism, and improve the performance of the transmission mechanism.

[0013] Preferably, in the steel-stamp-free paper supply transmission mechanism for the printing system of a cigarette rolling machine described in the utility model, a large-diameter section is provided at one end of the first transmission shaft close to the first pulley, and a small-diameter section is provided at the other end; the large-diameter section and the small-diameter section are respectively provided with two bearings whose inner ring diameters match them.

[0014] As a preferred solution of the utility model, by setting the first transmission shaft as a large diameter section and a small diameter section, and setting two bearings with different and matching diameters, it is ensured that the first transmission shaft is based on the bearing positioning, and the end close to the first pulley is provided with a large inner ring bearing matching the large diameter section, which can adapt to the force of the printing system under large load power, while the other end close to the paper feed roller is a small diameter section, and the small diameter section is provided with a matching bearing with a smaller inner ring to match the force borne by the paper feed roller, thereby further reducing the impact of load imbalance on the transportation of cigarette paper and improving the stability of the transportation of cigarette paper.

[0015] Preferably, in the steel-stamp-free paper feeding transmission mechanism for the cigarette rolling machine printing system of the utility model, the first belt wheel is configured as a toothed first belt wheel, and the inner ring of the first belt wheel is positioned on the first transmission shaft by a key;

[0016] As a preferred solution of the utility model, by setting the first pulley as a toothed first pulley, the first pulley can be meshed with the belt chain to transmit power to the transmission mechanism. Compared with the chain or belt, the belt chain can not only transmit power, but also cooperate with the first pulley for transmission, which can not only ensure the smooth operation of the transmission mechanism, but also has the effect of extending the service life of the transmission structure.

[0017] Preferably, the utility model described in the steel-print-free paper supply transmission mechanism for the cigarette rolling machine printing system, the transition transmission assembly includes: a second transmission shaft and a second pulley, one end of the second transmission shaft is connected to and supported on a fixed plate of the printing system through a bearing, the other end of the second transmission shaft is connected to the second pulley, the upper half of the second pulley is connected to the power source through a belt chain drive, and the lower half of the second pulley is connected to the tensioning transmission assembly through a belt chain drive.

[0018] As a preferred solution of the utility model, in the scenario where the tensioning transmission assembly and the second paper feeding transmission mechanism are power transmission with a large span or long distance, a transition transmission assembly is provided, and the transition transmission assembly adds a transmission fulcrum to the belt chain between the tensioning transmission assembly and the second paper feeding transmission mechanism, which can, on the one hand, make the power transmission more stable, and on the other hand, reduce the elastic deformation of the belt chain in long-distance transmission; on this basis, the second transmission shaft is connected and supported on the fixed plate through a bearing, the upper part of the second pulley is connected to the power source through a belt chain transmission, which can drive the pulley to rotate, and the lower part of the pulley is connected to the tensioning assembly through a belt chain transmission, which can more smoothly transmit the power transmitted by the second paper feeding transmission mechanism to the tensioning transmission assembly, thereby improving the stability of the operation of the transmission mechanism.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0020] 1. By setting up a transition rotating assembly, the integrated structure of the differential gear, servo motor and other integrated structures of the traditional first paper feeding roller transmission mechanism is replaced, so that the cigarette paper transmitted by the paper feeder does not need to be transmitted to the compensation device for adjustment, and does not need the function of the paper pressing roller, so that the stress points of the cigarette paper in the compensation device and the paper pressing roller can be eliminated in the printing production without steel stamp, reducing the risk of paper breakage, reducing the failure rate, and thus improving production efficiency;

[0021] 2. The front part of the tensioning transmission assembly can be axially connected to the paper feed roller, which is different from the integrated structure of the differential gear, servo motor and other integrated structures of the first paper feed roller transmission mechanism, thereby reducing mechanical failures such as gear damage, first transmission shaft wear, oil leakage, etc. The rear part is connected to the power source of the printing system through a belt chain transmission, the internal structure is simple, the maintenance difficulty is reduced, and it is easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 : Schematic diagram of the steel printing paper supply and transmission of the paper supply and printing system of the cigarette making and connecting unit;

[0023] Figure 2 : A three-dimensional structural diagram of the front portion of a conventional first paper feeding transmission mechanism;

[0024] Figure 3 : Schematic diagram of paper supply and transmission of the non-steel printing system of the utility model;

[0025] Figure 4 : A transmission schematic diagram of the rear portion of the non-steel paper feeding transmission mechanism of the utility model;

[0026] Figure 5 : A transmission schematic diagram of the rear portion of the non-steel paper feeding transmission mechanism of the utility model;

[0027] Figure 6: A three-dimensional structural diagram of the tensioning assembly described in the utility model;

[0028] Figure 7 : A cross-sectional view of the tensioning assembly of the utility model;

[0029] Figure 8 : A three-dimensional structural diagram of the installation cavity described in the utility model;

[0030] Fig. 9 : A three-dimensional structural diagram of the first transmission shaft described in the utility model;

[0031] Fig.10 : A schematic diagram of the structure of the transition transmission assembly described in the utility model;

[0032] Icons: 0-power source; 1-paper tray; 2-paper catcher; 3-first paper feeding transmission mechanism; 31-paper feeding roller; 32-paper pressing roller; 4-compensation device; 5-first steel stamp; 6-second steel stamp; 7-second paper feeding transmission mechanism; 8-paper guide; 9-tensioning transmission assembly; 90-belt chain; 91-first transmission shaft; 911-large diameter section; 912-small diameter section; 92-first pulley; 921-keyway; 93-bearing; 94-installation cavity; 941-thick wall section; 942-thin wall section; 95-flange; 10-transition transmission assembly; 101-second transmission shaft; 102-second pulley; fixing plate 11. DETAILED DESCRIPTION

[0033] The utility model is described in detail below in conjunction with the accompanying drawings.

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] Example 1

[0036] like Figure 3 , Figure 4 As shown, the steel-stamp-free paper supply transmission mechanism for the cigarette rolling machine printing system described in the utility model includes: a tensioning transmission assembly 9 and a transition transmission assembly 10 arranged between the paper feeder 2 and the second paper supply transmission mechanism 7; the front part of the tensioning transmission assembly 9 can be axially connected to the paper supply roller 31, and the tensioning transmission assembly 9 can transmit the cigarette paper output from the paper feeder 2 through the paper supply roller 31, and transmit the cigarette paper to the second paper supply transmission mechanism 7; the rear part of the tensioning transmission assembly 9 is transmission-connected to the transition transmission assembly 10 through a belt chain 90, and is transmission-connected to the power source 0 of the printing system.

[0037] It should be noted that if Figure 3As shown, one end of the tensioning transmission assembly 9 located at the front of the cigarette rolling machine printing system can be fixedly connected to the paper supply roller 31, so that cigarette paper can be transported at the front of the cigarette rolling machine printing system through the paper supply tube 31. Figure 4 As shown, the tensioning transmission assembly 9 is located at one end of the rear portion of the winding joint for transmitting power.

[0038] refer to Figure 1-Figure 4 As shown, the steel-stamp-free paper supply transmission mechanism for the cigarette rolling machine printing system described in the utility model replaces the integrated structures such as the differential gear and servo motor structure of the traditional first paper supply roller 31 transmission mechanism. The rear part of the tensioning transmission component 9 can be connected to the power source 0 of the printing system through the belt chain 90 and the transition transmission component 10, and can obtain the power transmitted by the driving motor or other transmission mechanisms. The front part is connected to the paper supply roller 31 through the shaft, and can drive the paper supply roller 31 to rotate, so as to realize the transmission of the cigarette paper output by the paper splicer 2 to the second paper supply transmission mechanism 7 through the paper supply roller 31.

[0039] The purpose of improvement of the present utility model is to solve the problem of a high failure rate in the process of printing without steel stamp in the currently used printing system with steel stamp due to the design of cigarette paper transmission and compensation design during steel stamp printing. The present utility model should not be understood as an improvement of omitting the printing roller and the compensation device 4, but should be understood as an improvement of the overall structure of the original first paper feeding transmission mechanism 3, as well as an improvement of the cigarette paper transmission structure and the power transmission structure. By improving part of the transmission mechanism of the original printing system with steel stamp, the failure rate of the cigarette rolling machine is reduced when it is used for printing without steel stamp.

[0040] The utility model can adapt to the production of cigarettes without steel stamps, and the transmission direction of cigarette paper is as follows Figure 3 As shown, the paper tray 1, the paper receiving device 2, the paper feeding transmission mechanism, and the second paper feeding transmission mechanism 7 are sequentially passed through. Figure 1 Compared with the transmission and transmission direction of the traditional steel-printed printing system with the first paper supply conveyor 3, the utility model has a simple structure, reduces the hidden danger of transmission failure of the paper supply roller 31 when producing cigarettes without steel stamps, and changes the internal lubrication of the transmission structure from oil injection to grease lubrication, eliminating the risk of oil leakage. The transmission mechanism has a simple structure, and the disassembly time is reduced from an average of 15 minutes to 5 minutes, reducing the repair time. In addition, the internal transmission structure of the utility model only includes the first transmission shaft 91, the bearing 93 and the first pulley 92, and the repair cost is low.

[0041] It should be noted that the transition transmission assembly 10 may be a component capable of transmitting power between the tension transmission assembly 9 and the second paper feeding transmission mechanism 7, such as a pulley. Fig.10As shown, the transition transmission assembly 10 includes: a second transmission shaft 101 and a second pulley 102, one end of the second transmission shaft 101 is connected to and supported on a fixed plate 11 of the printing system through a bearing, the other end of the second transmission shaft 101 is connected to the second pulley 102, the upper half of the second pulley 102 is connected to the power source 0 through a belt chain 90, and the lower half of the second pulley 102 is connected to the tensioning transmission assembly 9 through a belt chain 90.

[0042] It should be noted that the "power source 0" is understood to be the driving motor of the cigarette rolling machine printing system or other transmission mechanism that carries the power transmitted by the driving motor. It can be the driving motor or other power transmission mechanism in the cigarette rolling machine printing system, such as the first pulley 92 that is connected to the driving motor.

[0043] It should be noted that the "transmission" is understood as the work of the front part of the tensioning transmission assembly 9 for transmitting cigarette paper, which can be referred to Figure 1 and Figure 3 The arrow direction is the direction of the cigarette paper being transported. The "belt chain 90" is understood to be the tensioning transmission assembly 9 or the transmission component arranged at the rear of the tensioning transmission assembly 9, which is used to transmit the operating power of the rear of the printing system of the cigarette making machine to the next transmission component.

[0044] It should be noted that the "front" and "rear" described in the present invention are respectively understood as the two sides of the fixed plate of the printing paper supply system equipment. The first pulley 92 can be connected to the power source 0 through the belt chain 90, and the power source 0 comes from the drive motor located at the position of the second paper supply roller 31. The drive motor is driven to the rear of the second paper supply roller 31. The transmission mechanism at the rear of the second paper supply roller 31 is further driven to the tensioning transmission assembly 9 through the belt chain 90 to realize the transmission of the tensioning transmission assembly 9. Figure 3 and Figure 4 As shown, Figure 3 The front part of the printing paper feeding system, that is, the front view of the fixing plate 11, Figure 4 It is a view of the rear part of the printing paper feeding system equipment, that is, the rear side of the fixing plate 11.

[0045] It should be noted that the belt chain 90 is understood to be the two sides of an ordinary transmission belt, one side is provided with a chain that can engage with the first pulley 92, and the other side is a belt, thereby realizing transmission to the first pulley 92.

[0046] In this embodiment, reference Figure 6As shown, the tensioning transmission assembly 9 includes: a first transmission shaft 91 and a first pulley 92; the first transmission shaft 91 is connected to and supported on the fixed plate 11 of the printing system through a bearing 93, which can be understood as: the middle part of the first transmission shaft 91 passes through the fixed plate 11, and is connected to the fixed plate 11 through a bearing 93, so that it can be supported by the fixed plate 11 and rotate at both ends under the support and fixing action of the fixed plate 11, one end of the first transmission shaft 91 extends to the front of the fixed plate 11 of the printing system, and is fixedly connected to the paper supply roller 31, the other end of the first transmission shaft 91 extends to the rear of the fixed plate 11, and is axially connected to the first pulley 92, and the first pulley 92 is transmission-connected to the belt chain 90.

[0047] It should be noted that the fixed plate 11 is understood to be a fixed panel of the printing system of this type of cigarette rolling machine, so that various components can be fixed on the fixed plate 11 by bolts, etc., so that a paper supply transmission or printing operation system is formed in front of the fixed plate 11, and the rear of the fixed plate 11 can fix and provide drive and other components required for the operation of the equipment itself.

[0048] In this embodiment, reference Figure 6-Figure 8 As shown, a mounting cavity 94 is provided on the outer side of the first transmission shaft 91 , and both ends of the first transmission shaft 91 are axially connected to the mounting cavity 94 through bearings 93 , and the outer wall of the mounting cavity 94 is fixed to the fixing plate 11 ; the outer diameter of the mounting cavity 94 is equal to the outer diameter of the first pulley 92 .

[0049] In this embodiment, Figure 6 and Figure 8 As shown, a large diameter section 911 is provided at one end of the first transmission shaft 91 close to the first pulley 92, and a small diameter section 912 is provided at the other end; the large diameter section 911 and the small diameter section 912 are respectively provided with two bearings 93 with inner ring diameters matching them.

[0050] It should be noted that the "large" and "small" are understood as the relative sizes of the two sections with different diameters in the first transmission shaft 91. Specifically, the large diameter section 911 may be set to a diameter of about 25 mm, and the small diameter section 912 may be set to a diameter of about 20 mm.

[0051] Another example Figure 6-Figure 7 As shown, the designed installation cavity 94 is considered based on the size of the first transmission shaft 91 and the size of the installation space of the fixing plate 11. To ensure the positioning of the bearing 93 of the first transmission shaft 91, the outer diameter of the bearing 93 installed in the corresponding small diameter section 912 is considered to be approximately equal to 49 mm. The diameter of the bearing 93 installed in the corresponding large diameter section 911 is considered to be approximately equal to 52 mm. Considering that the installation cavity 94 needs to be installed on the printing system fixing plate 11, it can be realized by processing screw holes of matching sizes at appropriate positions of the installation cavity 94.

[0052] In this embodiment, Figure 6 and Figure 7 The outer wall of the installation cavity 94 shown in the figure close to the first pulley 92 is set as a thick-walled section 941, and the outer wall on the other side is set as a thin-walled section 942, and the thick-walled section 941 is thickened outward relative to the thin-walled section 942; a flange 95 is provided at a position of the thick-walled section 941 adjacent to the thin-walled section 942; the outer wall between the flange 95 and the thin-walled section 942 is used to embed the fixing plate 11; the flange 95 can be bolted to the fixing plate 11.

[0053] It should be noted that the "thick" and "thin" are understood as the relative "thickness" or "thinness" of the two sections of the installation cavity 94 itself, and are understood as relatively thick and thin. Specifically, the wall thickness of the thick-walled section 941 can be set to be approximately 10.5mm, and the wall thickness of the thin-walled section 942 can be set to be 5.5mm-6.5mm.

[0054] In this embodiment, Fig. 9 As shown, the first pulley 92 is configured as a toothed first pulley 92 , and a keyway 921 is provided on the inner ring of the first pulley 92 . The first pulley 92 can be positioned on the first transmission shaft 91 through the cooperation between the keyway 921 and the key.

[0055] Specifically, Fig. 9 As shown, after the first transmission shaft 91 and the mounting cavity 94 are designed, the first pulley 92 needs to consider the transmission of the power source 0 of the printing system, design the toothed first pulley 92, and set the keyway 921. The circumferential positioning of the first pulley 92 is achieved through the cooperation between the key and the keyway 921.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A paper feeding transmission mechanism without steel stamp for a cigarette making machine printing system, characterized in that: include: A tensioning transmission assembly (9) and a transition transmission assembly (10) are arranged between a paper splicer (2) and a second paper feeding transmission mechanism (7); the front portion of the tensioning transmission assembly (9) can be axially connected to a paper feeding roller (31), and the tensioning transmission assembly (9) can transmit cigarette paper output from the paper splicer (2) through the paper feeding roller (31), and transmit the cigarette paper to the second paper feeding transmission mechanism (7); the rear portion of the tensioning transmission assembly (9) is transmission-connected to the transition transmission assembly (10) through a belt chain (90), and is transmission-connected to a power source (0) of a printing system.

2. The steel-free paper feeding transmission mechanism for the cigarette making machine printing system according to claim 1 is characterized in that: The tensioning transmission assembly (9) comprises: a first transmission shaft (91) and a first pulley (92); the first transmission shaft (91) is connected to and supported on a fixed plate (11) of the printing system through a bearing (93); one end of the first transmission shaft (91) extends to the front of the fixed plate (11) of the printing system and is axially connected to the paper supply roller (31); the other end of the first transmission shaft (91) extends to the rear of the fixed plate (11) and is axially connected to the first pulley (92); the first pulley (92) is transmission-connected to the belt chain (90).

3. The steel-free paper feeding transmission mechanism for the cigarette making machine printing system according to claim 2 is characterized in that: An installation cavity (94) is provided on the outer side of the first transmission shaft (91), and both ends of the first transmission shaft (91) are axially connected to the installation cavity (94) through bearings (93), and the outer wall of the installation cavity (94) is fixed to the fixing plate (11).

4. The steel-free paper feeding transmission mechanism for a cigarette making machine printing system according to claim 3 is characterized in that: The outer wall of the installation cavity (94) on one side close to the first pulley (92) is set as a thick-walled section (941), and the outer wall on the other side is set as a thin-walled section (942), and the thick-walled section (941) is thickened outward relative to the thin-walled section (942); a flange (95) is provided at a position of the thick-walled section (941) adjacent to the thin-walled section (942); the outer wall between the flange (95) and the thin-walled section (942) is used to be embedded in the fixing plate (11); and the flange (95) can be bolted to the fixing plate (11).

5. The steel-stamp-free paper feeding transmission mechanism for a cigarette making machine printing system according to any one of claims 2 to 4, characterized in that: A large diameter section (911) is provided at one end of the first transmission shaft (91) close to the first pulley (92), and a small diameter section (912) is provided at the other end; the large diameter section (911) and the small diameter section (912) are respectively provided with two bearings (93) whose inner ring diameters match theirs.

6. The steel-free paper feeding transmission mechanism for a cigarette making machine printing system according to any one of claims 2 to 4, characterized in that: The first pulley (92) is configured as a toothed first pulley (92), and the inner ring of the first pulley (92) is positioned on the first transmission shaft (91) by a key.

7. The steel-stamp-free paper feeding transmission mechanism for a cigarette making machine printing system according to any one of claims 1 to 4, characterized in that: The transition transmission assembly (10) comprises: a second transmission shaft (101) and a second pulley (102), one end of the second transmission shaft (101) is connected to and supported on a fixed plate (11) of a printing system via a bearing, the other end of the second transmission shaft (101) is axially connected to the second pulley (102), the upper part of the second pulley (102) is connected to the power source (0) via a belt chain transmission, and the lower part of the second pulley (102) is connected to the tensioning transmission assembly (9) via a belt chain transmission.

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