Novel cutting mechanism with underneath type cutter for paper tube machine

Abstract

The novel cutting mechanism comprises a driving disc, a driven disc and a cutting limiting stopper, the driving disc is driven by an output shaft of a power device to rotate, the rear end of a center shaft of the driven disc is eccentrically fixed at the front end of the output shaft, and the circumferential surfaces of the driven disc and the output shaft are parallel. A plurality of first rotating seats and second rotating seats are respectively arranged around the driving disc and the driven disc, eccentric rods are arranged between adjacent rotating seats, transverse shafts at two ends of the eccentric rods are rotatably connected with the rotating seats, horn seats at the front ends of the lower transverse shafts are positioned on the outer side of the driven wheel, cutting limiters on the lower sides of the horn seats can clamp paper tubes, and round cutters cut on the lower sides of the paper tubes. The device can achieve stable supporting and accurate cutting of the paper tube, and the cutting efficiency and quality of the paper tube are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper tube cutting field, more particularly, a new cutting mechanism of paper tube machine's cutting knife down type. BACKGROUND

[0002] The cutting system of novel high -speed paper tube machine mainly divides into round cutting knife part and paper tube's support part two parts. Round cutting knife part is according to certain inclination angle layout, and inclination angle is related to the specification length of required paper tube. Round cutting knife piece circumambulates around cutter head axle and does circumferential motion while self -rotation, and paper tube is cut in radial. In order to prevent paper tube from being cut and deforming due to stress, resulting in cutting not smooth and affecting cut quality, need to provide support to paper tube when cutting. SUMMARY

[0003] The utility model just based on above technical problem, proposed a new cutting mechanism of paper tube machine's cutting knife down type.

[0004] A new cutting mechanism of paper tube machine's cutting knife down type, include: driving disc, passive disc, cutting limiter, the driving disc is rotated by the output shaft of power device and is driven, the center axle rear end eccentricity of passive disc is fixed in the front end of driving disc center axle, the driving disc with passive disc is parallel and is arranged in circumferential surface, the four around of driving disc is equipped with a plurality of first rotating seat connected with it, the four around of passive disc is equipped with a plurality of second rotating seat connected with it, the first rotating seat with second rotating seat one to one correspondence, the first rotating seat with second rotating seat between adjacent is equipped with eccentric rod, the both ends of eccentric rod are equipped with a horizontal shaft respectively, two horizontal shaftes are rotatably connected with first rotating seat and second rotating seat respectively, the front end of horizontal shaft located below is equipped with horn seat, the horn seat is located outside passive disc, the downside of horn seat is equipped with cutting limiter, cutting limiter can be clamped on paper tube, and round cutting knife is located in the lower side of paper tube and cuts it.

[0005] Preferably, the rear side of the driving disc is provided with a coaxial belt pulley, and the power motor drives the belt pulley to rotate through a belt.

[0006] Preferably, the first rotating seat and the second rotating seat are each provided with a rotating bearing, and the horizontal shaft passes through the inner ring of the bearing and is fixed thereto.

[0007] Preferably, the side surface of the horn seat is provided with a locking bolt, which is locked at the front end of the horizontal shaft through the locking bolt.

[0008] Preferably, the cutting limiter is composed of two horn nozzles, the horn nozzles are horizontally arranged, a gap is left between the two horn nozzles for the round cutting knife to pass through, the lower end of the horn nozzle is a horn opening, and the horn opening can be pressed on the paper tube.

[0009] Preferably, the plurality of said circular knives are installed uniformly in a circle on a cutter head, said cutter head is arranged obliquely, said cutter head is provided with a cutter head shaft in the center of said cutter head, said cutter head shaft is driven to rotate by a driving device, said circular knives are driven to rotate at high speed by a motor.

[0010] Advantages:

[0011] 1. Three pairs of horn nozzles are arranged in parallel, and the motion track is a circular reciprocating motion, which is stable and smooth during the contact with the support of the paper tube strip, and the blade provides more stable support force for the paper tube during cutting;

[0012] 2. During the cutting process, the horn nozzle, the paper tube and the circular knife move in the same direction and at the same speed, realizing dynamic following cutting, the blade does not produce additional interference with the horn nozzle and the paper tube, avoiding the problem of tool breaking, and improving the cutting quality of the paper tube; 3. The support device and the cutting device are distributed on the upper and lower sides of the paper tube strip, and the circular motion of the respective components does not affect each other, which is easier to realize the same speed motion, and the upper and lower distribution is relatively independent in position space, and the installation and debugging are simple;

[0013] 4. The length of the paper tube is determined by the distribution distance of the horn nozzle on the circle, and only by changing the diameter size of the driving disc and the driven disc, the length of the paper tube can be flexibly adapted to various specifications. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The structure schematic view of the utility model is shown;

[0015] Fig. 2 The lateral view of the support device of the utility model is shown. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned purpose, features and advantages of the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0017] As Figs. 1-2 shown in a paper tube machine cutter down type new cutting mechanism, mainly by driving disc 1, driven disc 2 and cutting limiter.

[0018] Driving disc 1 is driven to rotate by the output shaft of power device, driving disc 1 rear side is provided with coaxial pulley 16, the shaft is middle shaft 12, power motor drives pulley 16 to rotate through belt, which is the main power transmission component of the whole device, provides initial power for subsequent action, the rear end of the center shaft 13 of driven disc 2 is eccentrically fixed on the front end of middle shaft 12, and this eccentric arrangement makes the motion track of driven disc 2 different from driving disc 1.

[0019] The three first rotating seats 3 arranged around the main driving disc 1 and the three second rotating seats 4 arranged around the passive disc 2 provide support points for the installation and movement of the eccentric rod 5. The eccentric rod 5 arranged between the adjacent first rotating seat 3 and second rotating seat 4 is rotatably connected with the first rotating seat 3 and second rotating seat 4 through the horizontal shaft 14 at both ends, so as to realize the force transmission and movement conversion. The horn seat 6 arranged at the front end of the lower horizontal shaft 14 is located outside the passive disc 2 and plays a role of connection and support. The cutting limiter arranged below the horn seat 6 can be clamped on the paper tube 8, and its main function is to accurately position and limit the paper tube 8 during cutting, so as to ensure that the paper tube 8 does not displace or shake during cutting, thereby ensuring the accuracy and stability of the circular cutter 10 located below the paper tube 8 during cutting, and improving the cutting precision and quality.

[0020] During the operation of the device, the movement of the eccentric rod 5 drives the connected components to produce specific actions: the main driving disc 1 drives the first rotating seat 3 to transmit rotary power to the passive disc 2 and the cutting limiter. The linear speed and angular speed of the two horizontal shafts 14 on the main driving disc 1 and the passive disc 2 are the same, so the horn seats 6 are parallel to each other and make circular motion.

[0021] As a further improvement, rotating bearings are arranged in the first rotating seat 3 and the second rotating seat 4, and the horizontal shaft 14 penetrates the inner ring of the bearing and is fixed therewith, thereby reducing the friction resistance of the rotation of the horizontal shaft 14.

[0022] As a further improvement, the horn seat 6 is provided with a locking bolt 15 on the side, which is locked at the front end of the horizontal shaft 14, so as to facilitate the installation and adjustment of the angle of the horn seat 6, thereby facilitating the adjustment of the direction of the cutting limiter.

[0023] As a further improvement, the cutting limiter is composed of two horn mouths 7, which are both arranged horizontally. A gap is left between the two horn mouths 7 for the circular cutter 10 to pass through. The lower end of the horn mouth 7 is a horn opening, which can be pressed on the paper tube 8 to effectively limit the paper tube 8.

[0024] As a further improvement, a plurality of circular cutters 10 are evenly arranged on the cutter disc 9 in a circular manner. The cutter disc 9 is arranged obliquely, and the cutter disc 9 is provided with a cutter disc shaft 11 at the center. The cutter disc shaft 11 is driven to rotate by a driving device. The circular cutter 10 is driven to rotate at high speed by a motor, thereby improving the cutting efficiency and quality.

[0025] The horn nozzles 7 are arranged in up-down direction with the cutter device, the horn nozzles 7 are on the upper side of the paper tube 8, the circular cutter 10 is on the lower side of the paper tube 8, during the working process, the two horn nozzles 7 move forward following the paper tube 8, the cutter disc 9 is arranged in an inclined manner, the cutter blade has a certain horizontal speed during cutting, the speed matches the moving speed of the paper tube 8, in this way, the horn nozzles 7, the circular cutter 10 and the paper tube 8 move forward synchronously, the circular cutter 10 cuts the paper tube 8 from the gap between the two horn nozzles 7, in this way, the paper tube 8 with a specified length is obtained.

[0026] After the cutting of the circular cutter 10 is completed, the circular cutter 10 moves out from the gap between the two horn nozzles 7 following the rotation of the cutter disc 9, the driving disc 1 continuously rotates, the horn nozzles 7 move forward following the paper tube 8, enter the next process, the next group of horn nozzles 7 will repeat the limiting and cutting steps of the previous step under the driving of the driving disc 1, therefore, the length of the paper tube 8 is determined by the distribution distance of the horn nozzles 7 on the circumference, only by changing the diameter size of the driving disc 1 and the driven disc 2, the multiple length specifications of the paper tube 8 can be flexibly adapted.

[0027] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for the person skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A new cutting mechanism of a paper tube machine with down-set cutter, characterized in that, The utility model relates to a cutting device for paper tube, which comprises: A driving disc is driven to rotate by an output shaft of a power device, a center shaft of a driven disc is eccentrically fixed at a front end of a central shaft of the driving disc, the driving disc and the driven disc are arranged in parallel with their circumferential surfaces, a plurality of first rotating seats are arranged around the driving disc and connected with the driving disc, a plurality of second rotating seats are arranged around the driven disc and connected with the driven disc, the first rotating seats and the second rotating seats correspond to each other, an eccentric rod is arranged between adjacent first rotating seats and second rotating seats, a horizontal shaft is arranged at each end of the eccentric rod, the horizontal shafts are rotatably connected with the first rotating seats and the second rotating seats, a horn seat is arranged at a front end of the lower horizontal shaft, the horn seat is located outside the driven disc, a cutting limiter is arranged at a lower side of the horn seat, the cutting limiter can be clamped on a paper tube, and a circular cutter is arranged below the paper tube to cut the paper tube.

2. The new cutting mechanism of the paper tube machine cutter down type according to claim 1, characterized in that, A pulley coaxial with the driving disc is arranged at a rear side of the driving disc, and a power motor drives the pulley to rotate through a belt.

3. The new cutting mechanism of the paper tube machine cutter down type according to claim 1, characterized in that, Rotating bearings are arranged in the first rotating seats and the second rotating seats, and the horizontal shafts pass through inner rings of the bearings and are fixed with the bearings.

4. The new cutting mechanism of the paper tube machine cutter down type according to claim 1, characterized in that, Locking bolts are arranged at side surfaces of the horn seats and locked at front ends of the horizontal shafts.

5. The new cutting mechanism of the paper tube machine cutter down type according to claim 1, characterized in that, The cutting limiter comprises two horn nozzles arranged horizontally, a gap is arranged between the two horn nozzles for the circular cutter to pass through, the horn nozzles are open at lower ends, and the horn nozzles can be pressed on the paper tube.

6. The new cutting mechanism of the paper tube machine cutter down type according to claim 1 characterized in that, A plurality of circular cutters are uniformly arranged on a cutter disc in a circumferential direction, the cutter disc is arranged obliquely, a cutter disc shaft is arranged at a center of the cutter disc, the cutter disc shaft is driven to rotate by a driving device, and the circular cutters are driven to rotate at high speed by a motor.

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