Driving plate transmission mechanism with adjustable driving tooth spacing

Abstract

The utility model provides a drive plate transmission mechanism with adjustable drive tooth spacing, which comprises an arc-shaped channel and a drive plate, fixed drive teeth fixedly connected to the drive plate are distributed on the circumference of the drive plate, the arc-shaped channel is arranged around the circumference of the drive plate, swing drive teeth are arranged on the circumference of the drive plate, the swing drive teeth and the fixed drive teeth are all positioned in the arc-shaped channel, and the swing drive teeth and the fixed drive teeth are positioned in the arc-shaped channel. The swinging shifting teeth are arranged in the circumferential direction of the shifting disc in a fixed angle range in a swinging manner; a positioning mechanism is arranged on the driving plate and is used for switching the swinging driving teeth between a first angle position and a second angle position; swinging shifting teeth capable of swinging within a certain angle range are arranged on the shifting disc, and the swinging shifting teeth are controlled to swing and change between the first angle position and the second angle position through the positioning mechanism, so that the swinging shifting teeth control the position of the rod material in the arc-shaped channel, and the distances between the filter sticks on the second transmission line are non-equal.

Description

Technical Field

[0001] The present invention relates to the field of the tobacco industry, and particularly to a dial transmission mechanism with adjustable tooth pitch. Background Art

[0002] The firmware in cigarette filters is mainly used for the filter part of cigarettes. Its structure is diverse and may include a cylindrical shell, an end face, and internal fillers, etc. These firmwares are designed to improve the taste of the smoke and reduce the intake of harmful substances. They can filter out some harmful substances in the smoke, such as tar, nicotine, etc., and may also add spices or other ingredients to improve the taste of the smoke.

[0003] Generally, the firmware is placed between two filter rods. There are also a small number of firmwares combined with a single filter rod. To insert the firmware into the threading of the filter rod, it is necessary to adjust the distance between the equally spaced filter rods. Currently, the first transmission line and the second transmission line are connected through an arc-shaped channel. A dial is arranged at the arc-shaped channel, and fixed teeth are evenly arranged on the circumference of the dial. The fixed teeth are fixedly connected to the dial. After the dial rotates at a constant speed, the fixed teeth transfer the equally spaced filter rods from the first transmission line through the arc-shaped channel to the second transmission line. When the linear speed of the second transmission line is greater than that of the first transmission line, the distance between the filter rods on the second transmission line is thus enlarged compared to the distance between the filter rods on the first transmission line. According to production needs, it is necessary to make the distance between the filter rods on the second transmission line non-equally spaced for subsequent processing. Utility Model Content

[0004] In view of the requirements in the prior art, the present utility model provides a dial transmission mechanism with adjustable tooth pitch, aiming to meet production requirements by setting the teeth of the dial as a structure with adjustable pitch.

[0005] A dial transmission mechanism with adjustable tooth pitch includes an arc-shaped channel and a dial. Fixed teeth fixedly connected to the dial are distributed on the circumference of the dial. The arc-shaped channel is arranged around the circumference of the dial. A swing tooth is arranged on the circumference of the dial. Both the swing tooth and the fixed teeth are located in the arc-shaped channel. The swing tooth is arranged to swing along the circumferential direction of the dial within a fixed angular range; a positioning mechanism is arranged on the dial, and the positioning mechanism is used to switch the swing tooth between a first angular position and a second angular position;

[0006] When the swing tooth is in the first angular position, the swing tooth and the fixed teeth are evenly distributed on the circumference of the dial and rotate synchronously with the dial; when the swing tooth is in the second angular position, the swing tooth is away from the fixed tooth in its previous position.

[0007] Further: The swing teeth and the fixed teeth are alternately distributed on the circumference of the dial.

[0008] Further, the dial is rotatably installed on the base. A sunk groove is formed on the base, and the dial is accommodated in the sunk groove. An arc-shaped channel is formed between the outer circumference of the dial, the side wall of the sunk groove, and the bottom wall of the sunk groove. The inlet of the arc-shaped channel is opened at the side wall and the bottom wall of the sunk groove, and the outlet of the arc-shaped channel is opened at the bottom wall and the side wall of the sunk groove.

[0009] Further, the positioning mechanism includes a swing rod. The swing rod is swingably arranged on the dial. The outer end of the swing rod is fixedly connected to the inner end of the swingable dial tooth, and the swingable dial tooth and the swing rod move synchronously. A limiting groove is formed on the dial at the position corresponding to the swing rod. The two side walls of the limiting groove are respectively located on both sides of the swing rod and are used to block the swing rod to limit its swing limit, thereby limiting the first angular position and the second angular position of the swingable dial tooth.

[0010] Further, a return spring is arranged on the dial. One end of the return spring is fixedly connected to the dial, and the other end of the return spring is fixedly connected to the swing rod. The return spring is used to return the swing rod from the second angular position to the first angular position. A damping plate is fixedly arranged above the swing rod and at the position corresponding to the outlet end of the arc-shaped channel. The damping plate is used to apply a damping force to the swing rod and enable the swing rod to swing to the second angular position after overcoming the pulling force of the return spring.

[0011] Further, the dial is of an annular disc structure. The annular disc structure includes an upper disc and a lower disc which are fixedly connected after being butted. The arc-shaped channel is located between the upper disc and the side wall of the sunk groove. The fixing part of the fixed dial tooth extends below the bottom surface of the upper disc and is fixedly connected to the upper disc or the lower disc. The limiting groove is located on the bottom surface of the upper disc. The swing rod is arranged in the limiting groove, and the inner end of the swing rod passes through the inner ring of the dial and is connected to the return spring.

[0012] Further, the inner end of the swing rod is fixedly connected to the outer ring of a bearing. The bearing is horizontally arranged and sleeved on a vertical fixed shaft. The fixed shaft is located at the center of the dial and is fixedly connected to the base.

[0013] Further, the inner end of the swing rod bulges upward to form a friction part. When the friction part moves to the damping plate, friction movement occurs between the top surface of the friction part and the bottom surface of the damping plate.

[0014] Further, the damping plate is fixedly connected to a fixing frame. The fixing frame is fixedly connected to the base. Vertical screws are rotatably installed at both ends of the damping plate. The upper ends of the screws are in threaded cooperation with the fixing frame.

[0015] Further, the dial is rotatably installed on the top surface of the base. A baffle is fixedly installed on the base. An arc-shaped surface is arranged on one side of the baffle. The arc-shaped surface is arranged around the circumference of the dial. An arc-shaped channel is formed between the outer circumference of the dial, the top surface of the base, and the arc-shaped surface of the baffle.

[0016] Advantages of the present utility model: A swinging dial tooth that can swing within a certain angular range is provided on the dial, and the positioning mechanism is used to control the swinging of the swinging dial tooth between the first angular position and the second angular position, so as to enable the swinging dial tooth to control the position of the rod stock in the arc-shaped channel, and further make the distance between the filter rods on the second transmission line non-uniform. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present utility model;

[0018] Figure 2 It is a schematic diagram of the application effect of the present utility model. Detailed Embodiments

[0019] The present utility model will be described in detail below with reference to the drawings. The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model. The orientation terms such as left, middle, right, up, and down in the embodiments of the present utility model are only relative concepts to each other or are referenced based on the normal use state of the product, and should not be considered restrictive.

[0020] First Embodiment:

[0021] A dial transmission mechanism with adjustable dial tooth spacing, as shown in Figure 1 and Figure 2 shown, includes an arc-shaped channel 102 and a dial 1. Fixed dial teeth 7 fixedly connected to the dial 1 are distributed on the circumference of the dial 1. The arc-shaped channel 102 is arranged around the circumference of the dial 1. A swinging dial tooth 2 is arranged on the circumference of the dial 1. Both the swinging dial tooth 2 and the fixed dial teeth 7 are located in the arc-shaped channel 102. The swinging dial tooth 2 is swingably arranged along the circumferential direction of the dial 1 within a fixed angular range. The swinging dial tooth 2 and the fixed dial teeth 7 are preferably alternately distributed on the circumference of the dial 1; A positioning mechanism is arranged on the dial 1, and the positioning mechanism is used to switch the swinging dial tooth 2 between the first angular position and the second angular position;

[0022] During operation, the swing tooth 2 is positioned at the first angular position and rotates synchronously with the dial 1, and the swing tooth 2 and the fixed tooth 7 are evenly distributed on the circumference of the dial 1; the filter rods 104 at equal intervals on the first transmission line 101 are sequentially dialed through the arc-shaped channel 102 to the second transmission line 103 by the swing tooth 2 and the fixed tooth 7; when the swing tooth 2 dials the filter rod 104 into the arc-shaped channel 102, the swing tooth 2 swings relative to the dial 1 in the opposite direction of the rotation of the dial 1. Since the swing tooth 2 lags behind the normal moving position, the filter rod 104 stops moving or its moving speed slows down. At this time, the distance between the filter rod 104 dialed by the swing tooth 2 and its previous filter rod 104 becomes longer, and when the distance between the filter rod 104 and its previous filter rod 104 reaches the set distance, the swing tooth 2 is positioned at the second angular position and rotates synchronously with the dial 1; among them, the previous position means the front in the rotation direction when the dial rotates; after the swing tooth 2 at the second angular position dials the filter rod 104 to the second transmission line 103, the non-uniform spacing adjustment between the filter rods 104 is completed.

[0023] Among them, the dial 1 is rotatably installed on the base 6 and is driven by a driving mechanism to rotate clockwise. A sink 61 is provided on the base 6, and the dial 1 is received in the sink 61. An arc-shaped channel 102 is formed between the outer circumference of the dial 1, the side wall of the sink 61, and the bottom wall of the sink 61. The inlet of the arc-shaped channel 102 is opened at the side wall and the bottom wall of the sink 61, and the outlet of the arc-shaped channel 102 is opened at the bottom wall and the side wall of the sink 61.

[0024] The positioning mechanism includes a swing rod 3, which is swingably arranged on the dial 1. The outer end of the swing rod 3 is fixedly connected to the inner end of the swingable dial tooth 2, and the swingable dial tooth 2 and the swing rod 3 move synchronously. At the position corresponding to the swing rod 3 on the dial 1, a limit groove 12 is provided. The two side walls of the limit groove 12 are respectively located on both sides of the swing rod 3 and are used to block the swing rod 3 to limit its swing limit, thereby limiting the first angular position and the second angular position of the swingable dial tooth 2. A return spring 4 is arranged on the dial 1. One end of the return spring 4 is fixedly connected to the dial 1, and the other end of the return spring 4 is fixedly connected to the swing rod 3. The return spring 4 is used to return the swing rod 3 from the second angular position to the first angular position. Above the swing rod 3 and at the position corresponding to the outlet end of the arc-shaped channel 102, a damping plate 5 is fixedly arranged. The damping plate 5 is used to apply a damping force to the swing rod 3 and make the swing rod 3 swing to the second angular position after overcoming the pulling force of the return spring 4. The damping plate 5 is fixedly connected to a fixing frame 52, and the fixing frame 52 is fixedly connected to the base 6. Vertically arranged screw rods 51 are rotatably installed at both ends of the damping plate 5, and the upper ends of the screw rods 51 are in threaded cooperation with the fixing frame 52. Among them, the dial 1 is of an annular disc structure. The annular disc structure includes an upper disc 11 and a lower disc 13 which are fixedly connected after being butted. The upper disc 11 and the lower disc 13 are concentrically arranged, but the diameter of the upper disc 11 is smaller than that of the lower disc 13. The arc-shaped channel 102 is located between the side wall of the upper disc 1 and the sink 61. The fixing part 71 of the fixed dial tooth 7 extends below the bottom surface of the upper disc 11 and is fixedly connected to the upper disc 11 or the lower disc 13. The limit groove 12 is located on the bottom surface of the upper disc 11. The swing rod 3 is arranged in the limit groove 12, and the inner end of the swing rod 3 passes through the inner circle of the dial 1 and is connected to the return spring 4. The end of the inner end of the swing rod 3 is fixedly connected to the outer ring of a bearing 32. The bearing 32 is horizontally arranged and sleeved on a vertical fixed shaft 33. The fixed shaft 33 is located at the center of the dial 1 and is fixedly connected to the base 6. The end of the inner end of the swing rod 3 bulges upward to form a friction part 31. When the friction part 31 moves to the damping plate 5, its top surface rubs against the bottom surface of the damping plate 5 and moves, and the swing rod 3 is limited by one side wall of the limit groove 12, so that the swingable dial tooth 2 is positioned at the second angular position. After the friction part 31 is separated from the damping plate 5, the return spring 4 pulls the swing rod 3 to the other side wall of the limit groove 12, so that the swingable dial tooth 2 is reset and positioned at the first angular position.

[0025] Second embodiment:

[0026] Under the condition that other technical features are the same as those in the first embodiment, the dial 1 is rotatably installed on the top surface of the base 6. A baffle 8 is fixedly installed on the base 6. An arc surface is provided on one side of the baffle 8, and the arc surface is arranged around the circumference of the dial 1. An arc-shaped channel 102 is formed among the outer circumference of the dial 1, the top surface of the base 6, and the arc surface of the baffle 8.

[0027] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A dial transmission mechanism with adjustable tooth spacing, comprising an arc-shaped channel and a dial, wherein fixed teeth fixedly connected to the dial are distributed on the circumference of the dial, and the arc-shaped channel is arranged around the circumference of the dial, characterized in that: A swinging tooth is arranged on the circumference of the dial, the swinging tooth and the fixed tooth are both located in an arc-shaped channel, and the swinging tooth is swingably arranged along the circumferential direction of the dial within a fixed angle range; a positioning mechanism is arranged on the dial, and the positioning mechanism is used to switch the swinging tooth between a first angle position and a second angle position; when the swinging tooth is located at the first angle position, the swinging tooth and the fixed tooth are evenly distributed on the circumference of the dial and rotate synchronously with the dial; when the swinging tooth is located at the second angle position, the swinging tooth is away from the fixed tooth in its front position.

2. The dial transmission mechanism with adjustable tooth spacing according to claim 1, characterized in that: The swinging teeth and the fixed teeth are alternately distributed on the circumference of the dial.

3. The dial transmission mechanism with adjustable tooth spacing according to claim 1, characterized in that: The dial is rotatably mounted on a base, a sink groove is provided on the base, the dial is accommodated in the sink groove, an arc channel is formed between the outer circumference of the dial, the side wall of the sink groove, and the bottom wall of the sink groove, the inlet of the arc channel is provided at the side wall and the bottom wall of the sink groove, and the outlet of the arc channel is provided at the bottom wall and the side wall of the sink groove.

4. The dial transmission mechanism with adjustable tooth spacing according to claim 1, characterized in that: The positioning mechanism includes a rocker arm, which is swingably arranged on a dial, and the outer end of the rocker arm is fixedly connected to the inner end of a swinging tooth, and the swinging tooth and the rocker arm move synchronously; a limit groove is provided on the dial at a position corresponding to the rocker arm, and the side walls of the limit groove are respectively located on both sides of the rocker arm and are used to stop on the rocker arm to limit its swing limit, thereby limiting the first angular position and the second angular position of the swinging tooth.

5. The dial transmission mechanism with adjustable tooth spacing according to claim 4, characterized in that: A return spring is arranged on the dial, one end of the return spring is fixedly connected to the dial, and the other end of the return spring is fixedly connected to the rocker arm, and the return spring is used to return the rocker arm from the second angle position to the first angle position; a damping plate is fixedly arranged above the rocker arm and at a position corresponding to the outlet end of the arc channel, and the damping plate is used to apply a damping force to the rocker arm and make the rocker arm swing to the second angle position after overcoming the pulling force of the return spring.

6. The dial transmission mechanism with adjustable tooth spacing according to claim 5, characterized in that: The dial is an annular disc structure, which includes an upper disc and a lower disc that are fixedly connected after docking, and the arc channel is located between the side walls of the upper disc and the sink groove; the fixed part of the fixed shift tooth extends to below the bottom surface of the upper disc and is fixedly connected to the upper disc or the lower disc, the limit groove is located on the bottom surface of the upper disc, the rocker rod is penetrated in the limit groove, and the inner end of the rocker rod passes through the inner ring of the dial and is connected to the return spring.

7. The dial transmission mechanism with adjustable tooth spacing according to claim 6, characterized in that: The inner end of the swing rod is fixedly connected to the outer ring of the bearing. The bearing is horizontally arranged and sleeved on a vertical fixed shaft. The fixed shaft is located at the center of the dial and is fixedly connected to the base.

8. The dial transmission mechanism with adjustable tooth spacing according to claim 6, characterized in that: The inner end of the swing rod protrudes upward to form a friction portion. When the friction portion moves to the damping plate, the top surface thereof moves by friction with the bottom surface of the damping plate.

9. The dial transmission mechanism with adjustable tooth spacing according to claim 5, characterized in that: The damping plate is fixedly connected to the fixing frame, the fixing frame is fixedly connected to the base, vertical screw rods are rotatably installed at both ends of the damping plate, and the upper end of the screw rod is threadably matched with the fixing frame.

10. The dial transmission mechanism with adjustable tooth spacing according to claim 1, characterized in that: The dial is rotatably mounted on the top surface of the base, a baffle is fixedly mounted on the base, an arc surface is arranged on one side of the baffle, the arc surface is arranged around the circumference of the dial, and an arc channel is formed between the outer circumference of the dial, the top surface of the base, and the arc surface of the baffle.

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