Top opening system for tow package

Abstract

The invention discloses a tow package top opening system, which comprises an opening mechanism, which comprises a beating plate for beating a tow package to open the tow package; the walking mechanism is connected with the opening mechanism and used for driving the opening mechanism to move; the driving mechanism is connected with the beating plate and used for driving the beating plate to repeatedly beat the tow bag in the traveling process of the traveling mechanism. The device can continuously slap and loosen the area where the tow wrapping corners sink to generate tying marks, the pressure borne by the tow wrapping is reduced, and the influence of uneven stress of tows on the production process is reduced.

Description

Technical Field

[0001] The invention relates to the field of cigarette equipment, and in particular to a tow package top opening system. Background Art

[0002] Cigarette filter rods are an important part of cigarettes. Their main function is to intercept and filter smoke particles during smoking, which plays a role in reducing tar and harm. The pressure drop in the physical indicators of the filter rod has a great influence on the stability of the cigarette draw resistance. Therefore, the cigarette draw resistance (the resistance when smoking a cigarette) has a great influence on the sensory experience of consumers when smoking. The stability of the filter rod pressure drop largely determines the stability of the cigarette draw resistance.

[0003] At present, the filter rod forming process is to pull the tow in the tow package into the machine, wrap it into a strip filter rod of a certain diameter using forming paper through the forming equipment, and then cut it into filter rods of a certain length.

[0004] Generally, a tow package is a compacted stack of tows. The tow package needs to meet transportation requirements and needs to be tied up with cable ties during packaging. This causes the top of the tow package to curl due to stress, causing the cable ties to sink at the corners of the tow package and produce marks. The pulling force between the tows at the marks is relatively large. When making filter rods, the feed amount of the tows at the marks will decrease, resulting in the filter rod made with the tow having a lower suction resistance than the filter rod made with normal tow, which has an adverse effect on the suction resistance stability of the filter rod and ultimately causes pressure drop and circumferential fluctuation of the filter rod. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing tow packages need to be wrapped during transportation, which causes the corners of the tow packages to sink and produce marks, resulting in the filter rod made of the tow having lower suction resistance than the filter rod made of normal tow. The present invention provides a tow package top loosening system, which can continuously tap and loosen the area where the corners of the tow package sink and produce marks, reduce the pressure on the tow package, and reduce the impact of uneven force on the tow on the production process.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a tow package top opening system, comprising:

[0007] An opening mechanism, comprising a clapper for clapping the tow package to open the tow package;

[0008] The walking mechanism is connected with the opening mechanism and is used to drive the opening mechanism to move;

[0009] The driving mechanism is connected with the clapper and is used for driving the clapper to repeatedly clap the tow package during the running process of the walking mechanism.

[0010] Optionally, the walking mechanism includes three driving wheels, and the driving wheels are evenly arranged around the clapper board;

[0011] The tow package top loosening system also includes: a control device, which is used to determine the rotation speed of each driving wheel based on the set parameters and the position of each driving wheel relative to a reference point, so that the walking mechanism moves along a set path, wherein the set path is a pre-set travel path of the walking mechanism, and the reference point is the intersection of the axes of the three driving wheels; the set parameters include a set speed of the walking mechanism, and the set speed corresponds to the set path.

[0012] Optionally, the control device determines the rotation speed of each driving wheel based on the following formula:

[0013]

[0014] Among them, v 1 、v 2 、v 3 are the rotation speeds of the three driving wheels, a is the distance between the axis of the driving wheel and the reference point, θ is the angle between the axis of the driving wheel and the reference point, and v x is the moving speed of the walking mechanism in the lateral direction, v y is the moving speed of the walking mechanism in the vertical direction, and ω is the set rotation angle of the walking mechanism.

[0015] Optionally, each driving wheel is connected to a driving motor, and the driving motor is used to drive the driving wheel to rotate.

[0016] Optionally, the driving mechanism includes a circular ring, an eccentric wheel and a driving shaft, the driving shaft is connected to the eccentric wheel, and the driving shaft and the axis of the eccentric wheel have a certain distance, the eccentric wheel is located in the circular ring, and the outer edge of the eccentric wheel abuts against the inner circle of the circular ring, a first pestle rod is arranged at the bottom of the circular ring, and the clapper is arranged at the bottom of the pestle rod;

[0017] Among them, the driving shaft drives the eccentric wheel to rotate so that the eccentric wheel drives the ring to reciprocate between the first position and the second position in the vertical direction. When the ring is in the first position, the beater is separated from the top of the yarn package; when the ring is in the second position, the beater is in contact with the top of the yarn package.

[0018] Optionally, it also includes a bottom plate, the bottom plate is provided with a through hole, the ring is arranged above the bottom plate, and the first pestle rod passes through the through hole and is connected to the clapper board;

[0019] The driving mechanism is arranged on the bottom plate and close to the circular ring.

[0020] Optionally, a second pestle rod is provided at the top of the ring, and a fixing frame is also included. The fixing frame is arranged on the bottom plate, and a guide portion is provided at the top of the fixing frame toward the ring. The guide portion has a guide hole, and the second pestle rod passes through and extends out of the guide hole.

[0021] Optionally, the base plate is a disc-shaped structure, and the walking mechanism is installed at the bottom of the base plate.

[0022] Optionally, it also includes a position detector connected to the control device, which is used to detect the distance between the current position detector and the obstacle in front, and send a signal to the control device when the distance between the position detector and the obstacle in front is less than a preset value, so that the control device controls the three driving wheels to rotate a preset angle according to preset rules.

[0023] Optionally, it also includes a baffle, which forms a cavity with an open top along the top edge of the yarn bundle. The opening mechanism is arranged in the cavity, and the position detector is used to detect the distance from the baffle to send a signal to the control device.

[0024] The beneficial effects of the present application are: providing a top loosening system for a yarn bundle, which can continuously tap and loosen the areas at the corners of the yarn bundle where sunken marks are produced, thereby reducing the pressure on the yarn bundle and reducing the impact of uneven force on the yarn bundle on the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram showing the structure of a top opening system for a tow package according to an embodiment of the present invention;

[0026] Figure 2 A coordinate system diagram with the reference point as the origin is shown;

[0027] Figure 3 A diagram showing a scene when the tow package top opening system according to an embodiment of the present invention is used for a tow package. DETAILED DESCRIPTION

[0028] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0029] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0032] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Reference Figure 1 An embodiment of the present invention provides a top opening system for a tow package, including: an opening mechanism 1, including a clapper 11 for slapping a tow package 7 to loosen the tow package 7; a walking mechanism 3, connected to the opening mechanism 1, for driving the opening mechanism 1 to move; a driving mechanism 2, connected to the clapper 11, for driving the clapper 11 to repeatedly slap the tow package 7 during the movement of the walking mechanism 3.

[0035] The opening mechanism 1 is arranged on the top of the tow package 7, and is used to slap the top of the tow package 7. By continuously slapping the top of the tow package 7, the tow package 7 is loosened where it is tied with a tie, and the stress at the strangulation mark is released, thereby loosening the tow package 7 as a whole. When making a filter rod, the silk making equipment can smoothly pull the tow at the strangulation mark, so that when making the filter rod, the wire feeding amount of each filter rod is consistent, and the suction resistance between each filter rod can be consistent, thereby improving the stability of the suction resistance of the filter rod. The walking mechanism 3 is used to drive the opening mechanism 1 to move on the top of the tow package 7, so that the opening mechanism 1 can loosen all the strangulation marks on the tow package 7, and the driving mechanism 2 is used to drive the clapper 11 to repeatedly slap the tow package 7.

[0036] In an implementable embodiment, the walking mechanism 3 includes three driving wheels, and the driving wheels are evenly arranged around the clapper 11.

[0037] The top opening system of the tow package 7 also includes: a control device for determining the rotation speed of each driving wheel based on the set parameters and the position of each driving wheel relative to the reference point, so that the walking mechanism 3 moves along the set path, wherein the set path is the pre-set travel path of the walking mechanism 3, the reference point is the intersection of the axes of the three driving wheels, and the distance from the axis of each driving wheel to the reference point is equal; the set parameters include the set speed of the walking mechanism 3, and the set speed corresponds to the set path. The control device determines the rotation speed of each driving wheel based on the following formula:

[0038]

[0039] Among them, v 1 、v 2 、v 3 are the rotation speeds of the three driving wheels, a is the distance between the axis of the driving wheel and the reference point, and θ is the speed expressed in v 3 The angle between the axis and the reference point, v x is the moving speed of the walking mechanism 3 in the lateral direction, v y is the moving speed of the walking mechanism 3 in the vertical direction, and ω is the set rotation angle of the walking mechanism 3.

[0040] In this embodiment, the opening mechanism 1 is placed in the direction of the mark on the yarn package 7 in advance, and the walking path of the opening mechanism 1 is set. The control device is used to control the walking mechanism 3 to move along the set path according to the set path. The setting parameters and reference points of the walking mechanism 3 control the walking mechanism 3 to travel at the set speed.

[0041] The walking mechanism 3 includes three driving wheels, namely the first driving wheel 31, the second driving wheel 32, and the third driving wheel 33. Each driving wheel is connected to a driving motor 34, and the driving motor 34 is used to drive the driving wheel to rotate. The walking mechanism 3 also includes a steering mechanism, which is connected to the third driving wheel 33 to drive the third driving wheel 33 to rotate. When the walking mechanism 3 moves along the set path to the edge of the tow package 7, the opening mechanism 1 needs to turn around according to the preset path of the opening mechanism 1. At this time, the control device obtains the position of the reference point in real time. When the control device detects that the current position of the opening mechanism 1 is at the position to be turned around, the control device controls the steering mechanism to drive the third driving wheel 33 to rotate by a set angle, and at the same time controls each driving wheel to move on the walking mechanism 3 at a corresponding speed to complete the turning of the opening mechanism 1, thereby completing the opening of the tow package 7.

[0042] The rotation speeds of the first driving wheel 31, the second driving wheel 32 and the third driving wheel 33 are expressed in the coordinate system as v 1 、v 2 、v 3 Specifically, the above formula is obtained as follows:

[0043] Reference Figure 2 , establish a coordinate system with the reference point as the origin, take the path of the walking mechanism 3 moving in the lateral direction as the X-axis of the coordinate system, and the path of the walking mechanism 3 moving in the vertical direction as the Y-axis of the coordinate system, v 1 v 2 v 3 are the rotation speeds of the three driving wheels respectively, a is the distance between the axis of the first driving wheel 31 and the reference point, θ is the angle between the axis of the first driving wheel 31 and the reference point, and v x is the moving speed of the walking mechanism 3 in the lateral direction, v y is the moving speed of the walking mechanism 3 in the vertical direction, and ω is the set rotation angle of the walking mechanism 3. Thus,

[0044] v 1 =(-1)*v x +(0)*v y +a*ω

[0045] v 2 = sinθ*v x +(-cosθ)*v y +a*ω

[0046] v 3 = sinθ*v x +cosθ*v y +a*ω

[0047] Convert it to a matrix, that is:

[0048]

[0049] Then take the inverse:

[0050]

[0051] Thus, the rotation speeds of the three driving wheels of the walking mechanism 3 are obtained when the walking mechanism 3 moves to the corresponding position on the set path. In an implementable embodiment, the driving mechanism 2 includes a ring 23, an eccentric wheel 24 and a driving shaft 22, the driving shaft 22 is connected to the eccentric wheel 24, and the driving shaft 22 and the axis of the eccentric wheel 24 have a certain distance, the eccentric wheel 24 is located in the ring 23 and the outer edge of the eccentric wheel 24 abuts against the inner circle of the ring 23, a first pestle rod 25 is arranged at the bottom of the ring 23, and the clapper 11 is arranged at the bottom of the pestle rod.

[0052] Among them, the driving shaft 22 drives the eccentric wheel 24 to rotate so that the eccentric wheel 24 drives the ring 23 to reciprocate between the first position and the second position in the vertical direction. When the ring 23 is in the first position, the clapper 11 is separated from the top of the yarn package 7; when the ring 23 is in the second position, the clapper 11 is in contact with the top of the yarn package 7.

[0053] In this embodiment, the clapper 11 is used to slap the mark of the tow package 7, and continuously slap the mark to loosen it, thereby reducing the pressure on the tow package 7 and reducing the stress at the mark. The driving mechanism 2 includes a driving motor 21, which is connected to a driving shaft 22 and is used to provide power to the driving shaft 22. The driving shaft 22 drives the eccentric wheel 24 to rotate so that the eccentric wheel 24 drives the ring 23 to reciprocate between the first position and the second position in the vertical direction. The first pestle rod 25 at the bottom of the ring 23 rises and falls with the ring 23, thereby continuously slapping the tow package 7 to loosen the mark of the tow package 7 and eliminate the stress at the mark.

[0054] In an implementable embodiment, the bottom plate 4 is further comprised, the bottom plate 4 is provided with a through hole, the circular ring 23 is arranged above the bottom plate 4, the first pestle rod 25 is connected to the clapper 11 after passing through the through hole; the driving mechanism 2 is arranged on the bottom plate 4 and is arranged near the circular ring 23. In an implementable embodiment, the bottom plate 4 is used to install and fix the driving mechanism 2 so that the driving mechanism 2 is arranged near the circular ring 23; the first pestle rod 25 is connected to the clapper 11 after passing through the through hole, which can effectively correct the horizontal deviation of the circular ring 23 when the eccentric wheel 24 drives the circular ring 23 to reciprocate between the first position and the second position, so that the through hole plays a guiding role for the circular ring 23, and avoids the clapping position of the clapper 11 from being too much deviated, resulting in poor opening effect of the tow package 7.

[0055] In an implementable embodiment, a second pestle rod 26 is further provided at the top of the ring 23, and also includes a fixing frame 5, which is arranged on the bottom plate 4, and a guide portion 51 is provided at the top of the fixing frame 5 facing the ring 23, and the guide portion 51 has a guide hole, and the second pestle rod 26 passes through and extends out of the guide hole.

[0056] In this embodiment, the guide hole is arranged opposite to the through hole. By respectively arranging the first pestle rod 25 and the second pestle rod 26 at the top and the bottom of the ring 23, the first pestle rod 25 is guided through the through hole on the bottom plate 4, and the second pestle rod 26 is guided by the guide portion 51. This enables the ring 23 to reciprocate between the first position and the second position without horizontal displacement, and enables the striking position of the clapper 11 to be accurately controlled so that the clapper 11 can accurately strike the mark of the tow package 7.

[0057] In an implementable embodiment, the base plate 4 is a disc-shaped structure, and the walking mechanism 3 is installed at the bottom of the base plate 4. The three driving wheels of the walking mechanism 3 are evenly surrounded at the bottom of the base plate 4, and the driving motor 34 is arranged on the base plate 4 to provide power to the driving wheels.

[0058] In an implementable embodiment, it also includes a position detector connected to the control device, which is used to detect the distance between the current position detector and the obstacle in front, and send a signal to the control device when the distance between the position detector and the obstacle in front is less than a preset value, so that the control device controls the three driving wheels to rotate a preset angle according to a preset rule.

[0059] In this embodiment, the control device can also judge whether the current walking mechanism 3 needs to make a U-turn based on the signal of the position detector. When the walking mechanism 3 moves along the set path, the position detector is set on the bottom plate 4 to detect the distance between the walking mechanism 3 and the obstacles on the set path when the walking mechanism 3 moves along the set path. When the walking mechanism 3 moves to a distance less than the preset value from the obstacle, the position detector will send a signal to the control device. After receiving the signal from the position detector, the control device controls the steering mechanism to drive the first drive wheel 31 to rotate the set angle, and at the same time controls each drive wheel to move on the walking mechanism 3 at a corresponding speed to complete the U-turn of the loosening mechanism 1. The setting of the position detector can avoid deviation when the control device receives the real-time position of the reference point, causing the walking mechanism 3 to deviate from the preset path.

[0060] Reference Figure 2 In an implementable embodiment, it also includes a baffle 6, which forms a cavity with an open top along the top edge of the filament package 7. The opening mechanism is arranged in the cavity, and the position detector is used to detect the distance from the baffle to send a signal to the control device.

[0061] In this embodiment, the baffle 6 encloses the top edge of the tow package 7 to form a cavity with an open top, so as to prevent the opening mechanism from sliding off the edge when it moves to the edge of the tow package 7 along the preset path. The baffle 6 can also act as an obstacle, so that the position detector can detect the distance between the current walking mechanism 3 and the edge of the tow package 7 to control the walking mechanism 3 to turn around. In order to prevent the small tow from being entangled on the driving wheel, a plastic diaphragm is also laid on the top of the tow package 7. The diaphragm is connected to the bottom of the baffle.

[0062] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A tow package top opening system, It is characterized in that include: An opening mechanism, comprising a clapper for clapping the tow package to open the tow package; A walking mechanism, connected to the opening mechanism, and used to drive the opening mechanism to move; The driving mechanism is connected to the clapper and is used for driving the clapper to repeatedly clap the yarn bundle during the running process of the walking mechanism.

2. The tow package top opening system according to claim 1, It is characterized in that The walking mechanism comprises three driving wheels, and the three driving wheels are evenly arranged around the clapper board; The tow package top loosening system also includes: a control device, which is used to determine the rotation speed of each driving wheel based on set parameters and the position of each driving wheel relative to a reference point, so that the walking mechanism moves along a set path, wherein the set path is a pre-set travel path of the walking mechanism, the reference point is the intersection of the axes of the three driving wheels, and the distance from the axis of each driving wheel to the reference point is equal; the set parameters include a set speed of the walking mechanism, and the set speed corresponds to the set path.

3. The tow package top opening system according to claim 2, It is characterized in that The control device determines the rotation speed of each driving wheel based on the following formula: Among them, v 1 、v 2 、v 3 are the rotation speeds of the three driving wheels, a is the distance between the axis of the driving wheel and the reference point, θ is the angle between the axis represented by the speed v3 and the reference point, and v x is the moving speed of the walking mechanism in the lateral direction, v y is the moving speed of the walking mechanism in the vertical direction, and ω is the set rotation angle of the walking mechanism.

4. The tow package top opening system according to claim 2, It is characterized in that Each of the driving wheels is connected to a driving motor, and the driving motor is used to drive the driving wheel to rotate.

5. The tow package top opening system according to claim 4, It is characterized in that The driving mechanism comprises a circular ring, an eccentric wheel and a driving shaft, wherein the driving shaft is connected to the eccentric wheel, and the driving shaft is at a certain distance from the axis of the eccentric wheel, the eccentric wheel is located in the circular ring, and the outer edge of the eccentric wheel abuts against the inner circle of the circular ring, a first pestle rod is arranged at the bottom of the circular ring, and the clapper is arranged at the bottom of the pestle rod; Among them, the driving shaft drives the eccentric wheel to rotate so that the eccentric wheel drives the ring to reciprocate between a first position and a second position in a vertical direction, and when the ring is located at the first position, the beater is disengaged from the top end of the yarn package; when the ring is located at the second position, the beater is abutted against the top end of the yarn package.

6. The tow package top opening system according to claim 5, It is characterized in that It also includes a bottom plate, the bottom plate is provided with a through hole, the ring is arranged above the bottom plate, and the first pestle rod is connected to the clapper after passing through the through hole; The driving mechanism is arranged on the bottom plate and close to the circular ring.

7. The tow package top opening system according to claim 6, It is characterized in that A second pestle rod is also provided at the top of the circular ring, and also includes a fixing frame, which is arranged on the bottom plate, and a guide portion is provided at the top of the fixing frame toward the circular ring, and a guide hole is opened in the guide portion, and the second pestle rod passes through and extends out of the guide hole.

8. The tow package top opening system according to claim 6, It is characterized in that The base plate is a disc-shaped structure, and the walking mechanism is installed at the bottom of the base plate.

9. The tow package top opening system according to claim 2, It is characterized in that It also includes a position detector connected to the control device, which is used to detect the current distance between the position detector and the obstacle in front, and send a signal to the control device when the distance between the position detector and the obstacle in front is less than a preset value, so that the control device controls the three driving wheels to rotate at a preset angle according to a preset rule.

10. The tow package top opening system according to claim 9, It is characterized in that It also includes a baffle, which forms a cavity with an open top along the top edge of the filament package. The opening mechanism is arranged in the cavity. The position detector is used to detect the distance from the baffle to send a signal to the control device.

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