Integrated air cylinder structure of hooke type cutter head

Abstract

The utility model relates to the technical field of cutter feeding of filter tip forming machines, in particular to an integrated air cylinder structure of a hooke type cutter, which is characterized in that a flange is fixedly mounted on the right end surface of a bearing seat, an air cylinder is mounted on the right side of the flange, the output end of the air cylinder extends to the left side of the flange, and a feeding screw is mounted at the output end of the air cylinder in a leftward driving manner; a self-aligning bearing is installed on the left end face of the bearing seat, a cutter head shaft is fixedly connected to the inner wall of an inner ring of the self-aligning bearing, a groove is formed in the cutter head shaft, a spring is arranged in the groove, the hollow portion of the cutter head shaft is sleeved with a cutter feeding screw, a cutter feeding bearing is installed on the right side of the cutter feeding screw in a grooving mode, and a short shaft is fixedly installed on the inner wall of an inner ring of the cutter feeding bearing. According to the utility model, the novel integrated air cylinder mechanism is adopted to replace the split type structure of the Hooke type cutter head, so that the reliable feeding times can reach more than 500,000 times, and the problem of cutter head fault of the filter tip forming machine caused by the defects of the split type structure of the original Hooke type cutter head is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutter disc feed of a filter tip forming machine, in particular to an integrated cylinder structure of a Hooker-type cutter disc. Background Art

[0002] The cutterhead assembly, the core component of a filter rod forming machine, features a complex structure and requires high precision. Its reliability directly impacts product quality and unit performance. During routine maintenance, machines currently using Hooker-type cutterheads frequently experience problems such as feed failure and bearing damage, reducing equipment efficiency and increasing maintenance time and spare parts consumption.

[0003] The HAUNI series filter rod making machines utilize a Hooke-type, bottom-mounted cutter disc mechanism, similar to the cutter disc structure of today's ultra-high-speed cigarette making machines. During routine production, the disc often fails to automatically advance, often accompanied by damage to the 2206-2RS1 self-aligning bearing in the bearing seat due to lack of lubrication. This significantly increases noise and vibration in the disc assembly, from a normal 82 decibels to over 87 decibels. The vibration acceleration generated by bearing depletion can have a devastating impact on the entire high-precision disc and nozzle assembly. This not only disrupts the dynamic balance of the high-speed rotating components, rapidly degrading the equipment's accuracy and performance, but also increases the risk of uneven filter rod cuts. A survey of tobacco industry manufacturers using Hooke-type disc filter rod making machines revealed that the disc experienced a failure to advance the cutter disc approximately every eight months on average. Utility Model Content

[0004] The purpose of the utility model is to replace the split structure of the Hook's cutter disc by adopting a new integrated cylinder, to achieve a reliable feed frequency of more than 500,000 times, and to solve the problem of filter tip forming machine cutter disc failure caused by the defects of the original split structure of the Hook's cutter disc itself, and to propose an integrated cylinder structure of the Hook's cutter disc.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An integrated cylinder structure of a Hooke's cutterhead is designed, comprising a bearing seat, wherein a flange is fixedly mounted on the right end surface of the bearing seat, a cylinder is mounted on the right side of the flange, an output end of the cylinder extends to the left side of the flange, and a feed screw is mounted on the output end of the cylinder to drive the left side;

[0007] The left end face of the bearing seat is equipped with a self-aligning bearing, the inner wall of the inner ring of the self-aligning bearing is fixedly connected to the cutter shaft, the inner groove of the cutter shaft is provided with a groove, a spring is provided in the groove, and the hollow part of the cutter shaft is sleeved with a feed screw.

[0008] A feed bearing is installed in the slot on the right side of the feed screw, and a short shaft is fixedly installed on the inner wall of the inner ring of the feed bearing.

[0009] Preferably, the spring is installed in the cavity between the cutter disc shaft and the feed screw to provide a supporting force for resetting the feed screw.

[0010] Preferably, the feed screw is sleeved in a spring.

[0011] Preferably, the left side of the short shaft is fixedly connected to the inner wall of the inner ring of the bearing, and a gap is provided between the short shaft and the feed screw.

[0012] Preferably, a threaded hole is provided in the left slot of the feed screw.

[0013] Preferably, a temperature vibration sensor is installed at the lower left side of the bearing seat near the cutter head shaft.

[0014] The utility model proposes an integrated cylinder structure for a Hook's cutter disc, which has the beneficial effect that: the utility model replaces the split structure of the Hook's cutter disc with a new integrated cylinder mechanism, thereby achieving a reliable feed frequency of more than 500,000 times, and solving the problem of filter tip forming machine cutter disc failure caused by the defects of the original split structure of the Hook's cutter disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the integrated cylinder structure of a Hooke's cutterhead proposed in the present invention;

[0016] Figure 2 This is a side view schematic diagram of the integrated cylinder structure of a Hooke's cutterhead proposed in the present invention;

[0017] Figure 3 This is a schematic cross-sectional view of an integrated cylinder structure of a Hooke's cutterhead proposed in the present invention;

[0018] Figure 4 This is a left side schematic diagram of an integrated cylinder structure of a Hooker-type cutterhead proposed in the present invention;

[0019] Figure 5 This is a three-dimensional structural schematic diagram of an integrated cylinder structure of a Hooke's cutter disc proposed in the utility model.

[0020] In the figure: 10, bearing seat; 11, flange; 20, cylinder; 21, feed screw; 30, self-aligning bearing; 40, cutter shaft; 41, spring; 50, feed screw; 60, feed bearing; 61, short shaft; 70, temperature vibration sensor; 71, threaded hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-5 An integrated cylinder 20 structure of a Hooke's cutterhead includes a bearing seat 10, wherein a flange 11 is fixedly mounted on the right end surface of the bearing seat 10, a cylinder 20 is mounted on the right side of the flange 11, an output end of the cylinder 20 extends to the left side of the flange 11, and a feed screw 21 is mounted on the output end of the cylinder 20 to drive the feed screw 21 to the left side;

[0023] The left end face of the bearing seat 10 is mounted with a self-aligning bearing 30. The inner wall of the inner ring of the self-aligning bearing 30 is fixedly connected with a cutter shaft 40. The inner groove of the cutter shaft 40 is provided with a groove. A spring 41 is provided in the groove. The hollow part of the cutter shaft 40 is sleeved with a feed screw 50.

[0024] A feed bearing 60 is installed in the slot on the right side of the feed screw 50 , and a short shaft 61 is fixedly installed on the inner wall of the inner ring of the feed bearing 60 .

[0025] As an optimization solution of the present invention, the spring 41 is installed in the cavity between the cutter shaft 40 and the feed screw 50 to provide a supporting force for resetting the feed screw 50.

[0026] As an optimized solution of the present invention, the feed screw 50 is sleeved in the spring 41 .

[0027] As an optimization solution of the present invention, the left side of the short shaft 61 is fixedly connected to the inner wall of the inner ring of the feed bearing 60 , and a gap is provided between the short shaft 61 and the feed screw 50 .

[0028] As an optimization solution of the present invention, a threaded hole 71 is provided in the left slot of the feed screw 50 .

[0029] As an optimization solution of the present invention, a temperature vibration sensor 70 is installed at the lower left side of the bearing seat 10 near the cutter head shaft 40.

[0030] As an optimization solution of the present invention, the temperature vibration sensor 70 communicates with an external monitoring system via a cable to monitor relevant data in real time.

[0031] The overall workflow of this utility model is as follows:

[0032] First, there is a gap between the feed screw 50 and the cutter shaft 40. The feed screw 50 can move left and right inside the cutter shaft 40 through the cylinder 20 and spring 41. Because the cutter shaft 40 rotates at high speed during operation, while the bearing seat 10, feed cylinder 20, and flange 11 are stationary, at the moment when the cylinder 20 drives the feed screw 21 to push the short shaft 61, the left side is rotating at high speed while the right side is not rotating. To avoid high-speed collision between the two relatively moving parts, which would cause severe wear and vibration noise, the short shaft 61 is connected to the feed screw 50 through a bearing.

[0033] The leftward movement of the feed screw 21 pushes the short shaft 61 to the left at the same time. The short shaft 61, through the isolation of the feed bearing 60, drives the feed bearing 60 and the feed screw 50 to the left, completing the feed of the blade in the cutter head. After the feed is completed, the feed screw 50 returns to the rightmost end under the action of the return spring 41, waiting for the next feed cycle.

[0034] Because the cutter shaft 40 is adjusted according to the specifications of the filter rods produced, there is a certain angle between the cutter shaft 40 and the bearing seat 10. In order to avoid the coaxiality difference between the cutter shaft 40 and the bearing seat 10, the original structure is designed with a self-aligning bearing 30.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An integrated cylinder structure of a Hooke's cutterhead, including a bearing seat, characterized in that: A flange is fixedly mounted on the right end surface of the bearing seat, a cylinder is mounted on the right side of the flange, an output end of the cylinder extends to the left side of the flange, and a feed screw is driven to the left by the output end of the cylinder; The left end face of the bearing seat is equipped with a self-aligning bearing, the inner wall of the inner ring of the self-aligning bearing is fixedly connected to the cutter shaft, the inner groove of the cutter shaft is provided with a groove, a spring is provided in the groove, and the hollow part of the cutter shaft is sleeved with a feed screw. A feed bearing is installed in the slot on the right side of the feed screw, and a short shaft is fixedly installed on the inner wall of the inner ring of the feed bearing.

2. The integrated cylinder structure of the Hooker cutter disc according to claim 1, characterized in that: The spring is installed in the cavity between the cutter disc shaft and the feed screw, and is used to provide a supporting force for resetting the feed screw.

3. The integrated cylinder structure of the Hooker cutterhead according to claim 2, characterized in that: The feed screw is sleeved in the spring.

4. The integrated cylinder structure of the Hooker cutterhead according to claim 1, characterized in that: The left side of the short shaft is fixedly connected to the inner wall of the inner ring of the bearing, and a gap is provided between the short shaft and the feed screw.

5. The integrated cylinder structure of the Hooker cutterhead according to claim 1, characterized in that: The left side of the feed screw is slotted with a threaded hole.

6. The integrated cylinder structure of the Hooker cutterhead according to claim 1, characterized in that: A temperature vibration sensor is installed at the lower left side of the bearing seat near the cutter head shaft.

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