CN112810875A - Cigarette group forming device and cigarette packaging machine - Google Patents

Abstract

The invention relates to the technical field of tobacco packaging, in particular to a cigarette group forming device and a cigarette packaging machine. The cigarette group forming device includes: the cigarette discharging device comprises 11 guide plates, wherein a cigarette discharging channel is arranged between any two adjacent guide plates in the 11 guide plates, the 11 guide plates comprise two first guide plates, 1 second guide plate and 8 third guide plates, the second guide plates and the 8 third guide plates are arranged between the two first guide plates, and the 8 third guide plates are divided into two groups by the second guide plates; the smoke baffle is positioned behind the 11 guide plates; the bottom plate is arranged below the cigarette discharging channel, and the height difference between the upper surface of the bottom plate and the bottom ends of the cigarette blocking plate and the 8 third guide plates is greater than or equal to the height of two layers of cigarettes and less than the height of three layers of cigarettes; and the cigarette pushing plate is arranged in a reciprocating manner along the front-back direction and is used for pushing the cigarettes falling onto the bottom plate backwards. Therefore, the pushing and forming of 20 cigarettes in 2 rows and 10 cigarettes can be completed at one time, and the cigarette conveying stability is high.

Description

Cigarette group forming device and cigarette packaging machine

Technical Field

The invention relates to the technical field of tobacco packaging, in particular to a cigarette group forming device and a cigarette packaging machine.

Background

The cigarette group forming device is an important component of a cigarette packaging machine, and is used for arranging cigarettes into groups according to requirements and pushing out the groups so as to form qualified small cigarette packets in the following.

For a pack of 20 cigarettes there are different groupings of 7-6-7, 7-7-6 and 10 x 2 rows. Wherein, to the product that adopts 10X 2 row group mode, cigarette group forming device in the correlation technique generally adopts twice propelling movement shaping mode, and at twice propelling movement shaping in-process, the easy mutual interference of cigarette influences a cigarette and carries stability, increases quality risks such as a cigarette incomplete branch, damage, contact, leads to the appearance of defective products.

Disclosure of Invention

The invention aims to solve the technical problems that: improve the cigarette conveying stability of the cigarette group forming device.

In order to solve the above problems, the present invention provides a cigarette group forming device comprising:

the cigarette discharging device comprises 11 guide plates, wherein a cigarette discharging channel is arranged between any two adjacent guide plates in the 11 guide plates, the 11 guide plates comprise two first guide plates, 1 second guide plate and 8 third guide plates, the second guide plates and the 8 third guide plates are arranged between the two first guide plates, and the 8 third guide plates are divided into two groups by the second guide plates;

the smoke baffle is arranged behind the 11 guide plates;

the bottom plate is arranged below the cigarette discharging channel and used for receiving cigarettes falling from the cigarette discharging channel, and the height difference between the upper surface of the bottom plate and the bottom ends of the cigarette blocking plate and the 8 third guide plates is greater than or equal to the height of two layers of cigarettes and smaller than the height of three layers of cigarettes; and

the cigarette pushing plate is arranged in a reciprocating manner along the front-back direction and used for pushing the cigarettes falling on the bottom plate backwards.

In some embodiments, the bottom end of the second guide plate is lower than the bottom ends of the 8 third guide plates.

In some embodiments, the bottom end of the second guide plate is lower than or flush with the upper surface of the bottom plate, the cigarette pushing plate is provided with a slot, and the second guide plate penetrates through the slot in the process that the cigarette falling onto the bottom plate is pushed out backwards by the cigarette pushing plate.

In some embodiments, a slot is provided on the bottom plate, and the second guide plate is inserted into the slot.

In some embodiments, the second guide plate includes a first plate portion and a second plate portion, the second plate portion being connected to a bottom end of the first plate portion, the second plate portion projecting forward relative to the first plate portion.

In some embodiments, the height difference between the upper surface of the bottom plate and the bottom end of the third guide plate is 2.5 times of the diameter of the cigarette; and/or the width of the lower cigarette channel is 0.5mm larger than the diameter of the cigarette.

In some embodiments, the lower surface of the cigarette pushing plate is provided with a mounting groove, the mounting groove is positioned in the middle of the left and right directions of the cigarette pushing plate, and the cigarette pushing plate is connected with the supporting piece through the mounting groove; and/or the cigarette pushing plate is provided with a long round hole, the long shaft of the long round hole extends along the front-back direction, and the cigarette pushing plate is connected with the supporting piece through the long round hole.

In some embodiments, the first guide plate is provided with a protrusion, and the protrusion is located on an inner surface of the first guide plate and is located at a lower portion of the first guide plate.

In some embodiments, the projections have arcuate surfaces.

The invention additionally provides a cigarette packaging machine which comprises the cigarette group forming device in each embodiment of the invention.

The cigarette group forming device provided by the invention can complete the pushing and forming of 20 cigarettes in 2 rows and 10 cigarettes at one time, and the cigarette conveying stability is higher.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Figure 1 is a perspective view of a cigarette group forming device in an embodiment of the invention.

Fig. 2 is a perspective view of a smoke evacuation assembly in an embodiment of the present invention.

Figure 3 is a front view of a lower smoke assembly in an embodiment of the present invention.

Figure 4 is a rear view of a lower smoke assembly in an embodiment of the present invention.

Fig. 5 and 6 are schematic perspective views of two first guide plates in the embodiment of the invention.

FIG. 7 is a perspective view of a second guide plate according to an embodiment of the present invention.

FIG. 8 is a perspective view of a third guide plate according to an embodiment of the present invention.

Fig. 9 is a perspective view of a bottom plate in an embodiment of the invention.

Fig. 10 is a perspective view of a smoke pushing plate in the embodiment of the invention.

Fig. 11 is a longitudinal sectional schematic view of a cigarette pushing plate in the embodiment of the invention.

Figure 12 is a bottom view of a smoke pusher plate in an embodiment of the present invention.

FIG. 13 is a perspective view of an exemplary reforming device according to the present invention.

Fig. 14 is a schematic view of fig. 13 with the cover plate omitted.

Description of reference numerals:

10. a cigarette group forming device;

10a, a smoke discharging component; 10b, a cigarette pushing mechanism 10 b;

1. a flue assembly; 11. mounting a plate; 12. a guide plate; 13. a first guide plate; 14. a second guide plate; 141. a first plate portion; 142. a second plate portion; 15. a third guide plate; 16. a convex portion; 17. a smoke discharge channel;

2. a smoke baffle;

3. a base plate; 31. a card slot;

4. a smoke pushing plate; 41. a slot; 42. mounting grooves; 43. a long round hole; 44. a containing groove;

6. a shaping device; 61. a first guide member; 62. a second guide member; 63. a cover plate; 64. a whole die cavity; 65. a bevel;

7. and a support member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

In the description of the present invention, it should be understood that the terms "first", "second", etc. are used to define the components, and are used only for the convenience of distinguishing the corresponding components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In cigarette packing machines such as contour cigarette packing machines (e.g., full opening cigarette packing machines), the group forming device is generally disposed downstream of a cigarette magazine (not shown) and below a cigarette agitating device (e.g., a cigarette agitating roller, not shown) of the cigarette magazine. The cigarette stirring device is driven by an independent servo motor to rotate in a positive and negative rotation mode, so that cigarettes fall smoothly. When the cigarette group forming device works, cigarettes fall to the cigarette group forming device under the action of the cigarette stirring device and are arranged into groups by the cigarette group forming device to be pushed out, so that various packaging actions can be completed together with inner wrapping paper subsequently, and a small cigarette packet is formed.

In recent years, along with the rapid development of the cigarette market, more diversified requirements are put forward on the cigarette specifications and the cigarette packet specifications, for example, the cigarettes have different specifications such as conventional cigarettes (the diameter is about 7.8mm) and medium-fine cigarettes (the diameter of the medium-fine cigarettes is about 6.36mm), the number of cigarettes in a single packet is not only 20, but also 10, 5 and other cases, meanwhile, the number of cigarettes in a single packet is 20, and the grouping mode also has different modes such as 7-6-7 rows, 7-7-6 rows and 10 × 2 rows. "Row" refers to a layer. The 7-6-7 rows refer to three layers, the first layer is 7, the second layer is 6, and the third layer is 7. The 7-7-6 rows refer to three layers, the first layer is 7, the second layer is 7 and the third layer is 6. The 10 x 2 rows refer to a total of two layers, each layer having 10 branches.

For 10 x 2 rows of products, some cigarette group forming devices are limited by structures, and can be arranged to form 10 x 2 rows of cigarette groups only by adopting a twice pushing and forming mode. In the two-time pushing and forming process, cigarettes are easy to interfere with each other, the cigarette conveying stability is affected, the quality risks of cigarette residue, damage, contacts and the like are increased, and defective products are caused. The cigarette group forming device adopting the twice pushing and forming mode is particularly difficult to adapt to thin and soft medium and thin cigarettes.

In view of the above situation, the structure of the cigarette group forming device is improved, so that a more stable and reliable cigarette pushing and forming process is realized.

Figures 1-14 schematically illustrate a cigarette group forming device of the present invention.

Referring to fig. 1-14, a cigarette group forming device 10 according to an embodiment of the present invention includes a support member 7, a lower cigarette assembly 10a, a cigarette pushing mechanism 10b, and a shaping device 6.

The lower cigarette assembly 10a, the cigarette pushing mechanism 10b and the shaping device 6 are all arranged on the support member 7 and supported by the support member 7. The support 7 may be a support plate or a support frame. The lower cigarette assembly 10a is used for guiding the falling of cigarettes and comprises a flue assembly 1, a cigarette baffle 2 and a bottom plate 3. The cigarette pushing mechanism 10b is used for pushing out the desired number of cigarette rods falling into place from front to back, and includes a cigarette pushing plate 4 and a cigarette pushing driving mechanism (not shown in the figure). The shaping device 6 is arranged at the rear side of the flue component 1 and positioned on the cigarette pushing path and used for shaping the cigarettes in the process of pushing the cigarettes backwards by the cigarette pushing mechanism 10b so as to enable the cigarette groups to reach the width required by the subsequent small box packaging.

It will be understood that "front-back" is defined based on the direction in which the cigarette is pushed by the cigarette pushing mechanism 10b, "front" refers to upstream in the direction of pushing, and "back" refers to downstream in the direction of pushing. The "left and right" referred to later is based on the definition of "front and back" and "up and down".

Wherein the flue assembly 1 comprises a mounting plate 11 and a plurality of guide plates 12. The mounting plate 11 is mounted on a rear plate (not shown) of the smoke warehouse to realize connection of the smoke stack assembly 1 and the smoke warehouse. All the guide plates 12 are disposed on the mounting plate 11, and specifically, the guide plates 12 are disposed on the front end surface of the mounting plate 11 and connected to the mounting plate 11 by connecting members such as positioning pins and bolts. All the guide plates 12 are arranged side by side at intervals in the left-right direction so that any adjacent two guide plates 12 have a space therebetween. The interval between two adjacent guide plates 12 forms a cigarette discharging channel 17 communicated with the outlet at the bottom of the cigarette warehouse to guide the cigarette to fall. In this way, the flue assembly 1 has a plurality of lower smoke channels 17, which guide the falling of multiple cigarettes. Each path comprises a plurality of layers of cigarettes stacked along the height direction. As shown in fig. 1-4, the guide plates 12 are inclined toward the middle of the mounting plate 11 in the left-right direction from the top to the bottom, so that all the guide plates 12 form a substantially wide and narrow cone shape together, and thus, the cigarettes gradually get close to each other and the gap is reduced during the falling process.

The bottom plate 3 is disposed below the cigarette dropping channel 17 and is used for receiving cigarettes falling from the cigarette dropping channel 17, that is, the cigarettes fall onto the bottom plate 3 after falling along the cigarette dropping channel 17. The base plate 3 is mounted on a support 7, for example, see fig. 1, the support 7 is provided with a sink in which the base plate 3 is disposed. The upper surface of the bottom plate 3 is a plane. The cigarettes fall onto the upper surface of the base plate 3 after falling along the lower cigarette passage 17.

The cigarette blocking plate 2 is connected with the flue component 1, is positioned below the mounting plate 11 and behind the 11 guide plates 12, and is used for blocking cigarettes with more than required layers in the process of pushing out the cigarettes by the cigarette pushing mechanism 10b, so that only the cigarettes with the required layers are pushed out by the cigarette pushing mechanism 10 b. Referring to fig. 2 and 4, in some embodiments, the smoke barrier 2 is attached to the guide plate 12. Specifically, the left and right sides of the smoke barrier 2 are respectively connected to two guide plates 12 located on the outermost sides in the left-right direction among the 11 guide plates 12. Therefore, the cigarette blocking plate 2 and the rear end of the cigarette discharging channel 17 have almost no gap, so that the cigarette pushing mechanism 10b can play a role in blocking cigarettes with more than the required number of layers when just starting to push the cigarettes out of the cigarette discharging channel 17, and the cigarettes with more than the required number of layers can be more reliably prevented from being pushed out.

The cigarette pushing mechanism 10b realizes a cigarette pushing function through the cigarette pushing plate 4. Wherein, the cigarette pushing plate 4 is arranged along the front and back direction in a reciprocating way and is used for pushing the cigarettes falling on the bottom plate 3 backwards. Referring to fig. 1, in some embodiments, the cigarette pushing plate 4 is disposed on the supporting member 7, and the lower surface of the cigarette pushing plate is located above the upper surface of the bottom plate 3, so that the cigarette pushing plate 4 reciprocates in the front-back direction relative to the bottom plate 3 to push out the cigarettes. The reciprocating movement of the cigarette pushing plate 4 in the front-back direction is completed under the driving of the cigarette pushing driving mechanism. In some embodiments, the smoke ejection drive mechanism comprises a cam mechanism.

The shaping device 6 is arranged on the support 7 and is positioned at the rear side of the lower smoke channel 17 and is opposite to the smoke pushing plate 4. Referring to fig. 13, the shaping device 6 has a shaping cavity 64, the inlet section of which shaping cavity 64 narrows in the push-out direction. During the process of pushing out the cigarette by the cigarette pushing mechanism 10b, the cigarette passes through the shaping cavity 64. Because the inlet section of the shaping cavity 64 is gradually narrowed along the pushing-out direction, cigarettes can be mutually close to form a cigarette group which is more closely arranged, the cigarette group with the width meeting the packaging requirement is obtained, and the shaping of the cigarette group is completed. Referring specifically to fig. 13-14, in some embodiments, the shaping device 6 includes a first guide 61, a second guide 62, and a cover plate 63. The first guide 61 and the second guide 62 are arranged at an interval in the left-right direction and are opposite to each other. The cover 63 is overlapped on the first guide 61 and the second guide 62. Thus, a molding cavity 64 is formed between the first guide 61, the second guide 62 and the cover plate 63. Also, the first guide 61 and the second guide 62 are provided with inclined surfaces 65 on sides thereof opposite to each other. The inclined surface 65 extends rearward from the end of the first guide 61 and the second guide 62 near the lower smoke passage 17, and is gradually inclined toward the inside of the shaping chamber 64 in the front-to-rear direction. In this way, the inlet section of the shaping cavity 64 is gradually narrowed in the push-out direction, so that the shaping device 6 can perform the shaping function.

During operation, the cigarette stirring device above the cigarette discharging channel 17 rotates, so that cigarettes in the cigarette warehouse fall into the cigarette discharging channels 17 in several ways, and continuously fall down along the cigarette discharging channels 17 under the action of gravity, and finally fall onto the bottom plate 3. After the cigarettes fall on the bottom plate 3, the cigarette pushing plate 4 moves backwards to push out the cigarettes (i.e., the required number of layers) on the bottom plate 3, and in the pushing-out process, the cigarette groups pass through the shaping cavity 64, so that the process of pushing and shaping the cigarettes simultaneously is realized. After the pushing is finished for one time, the cigarette pushing plate 4 moves reversely, namely moves forwards, finally resets and waits for the next cigarette pushing. In the process of pushing cigarettes backwards, along with the cigarettes with the required number of layers being pushed out by the cigarette pushing plate 4, the cigarettes with other number of layers above the required number of layers drop downwards and fall onto the cigarette pushing plate 4. When the cigarette pushing plate 4 finishes pushing cigarettes once, and returns to the original position, the cigarettes originally falling on the cigarette pushing plate 4 are gradually separated from the cigarette pushing plate 4 and fall onto the bottom plate 3 to become lower-layer cigarettes to wait for being pushed out. Thereafter, the smoke pusher 4 may be moved backward again to push smoke again. Repeating the steps until the production task is finished.

Referring to fig. 1-3, in some embodiments, the number of guide plates 12 in the flue assembly 1 is 11, and a smoke discharge channel 17 is disposed between any two adjacent guide plates 12. In this way, the flue assembly 1 has a total of 10 lower smoke channels 17, which can simultaneously guide 10 cigarettes to fall.

The 11 runners 12 comprise two first runners 13, 1 second runner 14 and 8 third runners 15. The two first runners 13 are two runners 12 located outermost in the left-right direction among the 11 runners 12. The second guiding plate 14 and the 8 third guiding plates 15 are each arranged between two first guiding plates 13. The second runners 14 are located between the 8 third runners 15, dividing the 8 third runners 15 into two groups.

The height difference between the upper surface of the bottom plate 3 and the bottom end of the cigarette blocking plate 2 is greater than or equal to the height of two layers of cigarettes and less than the height of three layers of cigarettes, for example, in some embodiments, the height difference between the upper surface of the bottom plate 3 and the bottom end of the cigarette blocking plate 2 is greater than 2.5 times of the diameter of the cigarettes and less than 3 times of the diameter of the cigarettes. At this time, the bottom plate 3 can not only reliably block the cigarettes on the 3 rd layer (or called 3 rd row), but also does not obstruct the pushing of the cigarettes on the two lowest layers (or called two lowest rows).

And, referring to fig. 1 to 4, the upper surface of the base plate 3 is not in contact with the bottom ends of the 8 third guide plates 15, but has a space therebetween. Specifically, the height difference between the upper surface of the bottom plate 3 and the bottom ends of the 8 third guide plates 15 is greater than or equal to the height of two layers of cigarettes and less than the height of three layers of cigarettes. For example, in some embodiments, the height difference between the upper surface of the bottom plate 3 and the bottom end of the cigarette retaining plate 2 is equal to 2.5 times the diameter of the cigarette.

Based on the arrangement, when pushing cigarettes, the rear end surfaces of the cigarette pushing plates 4 contact the two rows of the cigarettes at the bottom, push the two rows of the cigarettes at the bottom backwards, and enter the next station after the whole cavity 64 is contracted. In the process of pushing cigarettes, the 3 rd row cigarettes are blocked by the cigarette blocking plate 2, and the 3 rd row cigarettes are prevented from being pushed out.

Therefore, the cigarette pushing plate 4 can push 20 cigarettes in 10 × 2 rows at a time, so that the cigarette group forming device 10 can form 10 × 2 cigarette groups only by pushing once, and the packaging requirement of small cigarette packets in 10 × 2 rows in the cigarette groups in the cigarette box is met. This kind of propelling movement shaping mode compares with twice propelling movement shaping mode, and the propelling movement number of times reduces, can reduce the risk that the cigarette was interfered because the motion produces in the group, consequently, be favorable to improving a cigarette and carry stability, reduce the risk that quality problems such as a cigarette incomplete branch, damage or contact appear, improve the product percent of pass, this makes cigarette group forming device 10 not only can satisfy the demand in groups of conventional cigarette, can also satisfy the demand in groups of well ramuscule, especially well ramuscule cigarette.

Aiming at cigarettes with different specifications, the production requirements of the cigarettes with different specifications can be met only by changing the size of the cigarette discharging channel 17. In some embodiments, the width of lower smoke channel 17 is greater than the diameter of the tobacco rod to facilitate a smoother descent of the tobacco rod. Specifically, in some embodiments, the width of the lower cigarette passage 17 is 0.5mm larger than the diameter of the cigarettes, so that the cigarettes can smoothly fall, and the gaps between the cigarettes on the same layer can be smaller to prevent scattering. For example, for a conventional cigarette, the width of lower smoke channel 17 may be the sum of conventional cigarette diameters of 7.8mm and 0.5mm, i.e. 8.3mm, while for a medium cigarette, the width of lower smoke channel 17 may be the sum of medium cigarette diameters of 6.36mm and 0.5mm, i.e. 6.86 mm.

In addition, based on the cigarette group forming device 10, one-time pushing forming is completed, only one set of lower cigarette component 10a is needed, and other structures do not need to be additionally arranged in the lower cigarette component 10a, so that the structure of the cigarette group forming device 10 is simpler.

And, third baffle 15 does not extend to and contacts with bottom plate 3, but rather has the interval that is greater than or equal to two-layer cigarette height between 3 with the bottom plate, like this, is favorable to increasing to push away cigarette board 4 and pushing away the area of contact of cigarette in-process and cigarette, realizes more steadily reliable cigarette pushing away process, simultaneously, is favorable to reducing the clearance between the cigarette that falls onto bottom plate 3, makes the cigarette in the cigarette group arrange inseparabler.

Because, under the condition that third baffle 15 extends to bottom plate 3, if realize pushing away the cigarette smoothly, need set up the gap that corresponds with each third baffle 15 on pushing away cigarette board 4 for push away cigarette in-process, each third baffle 15 can pass from each gap, in order to avoid third baffle 15 to obstruct the reciprocating motion who pushes away cigarette board 4, but under this condition, push away cigarette board 4 and cut apart by the gap, can't wholly contact with a cigarette, the area of contact with a cigarette reduces, probably causes to push away askew and a cigarette warp scheduling problem, especially is difficult to satisfy a cigarette and pushes away the demand backward. And have more than or equal to under the condition that two-layer cigarette highly spaced between third baffle 15 and bottom plate 3, third baffle 15 can not lead to the fact the interference to reciprocating motion's cigarette pushing plate 4, it need not to set up the gap that supplies third baffle 15 to pass at the cigarette pushing plate in-process on 4 to push away cigarette, therefore, cigarette pushing plate 4 can wholly and a cigarette contact pushing plate 4, make cigarette pushing plate 4 push away cigarette in-process and a cigarette between bigger area of contact, conveniently push away cigarette plate 4 more reliable and more stable with a cigarette release, reduce and push away askew and a cigarette deformation risk, make and can satisfy a cigarette reverse push demand betterly. The cigarette reverse pushing refers to a cigarette pushing mode that the cigarette pushing plate 4 is contacted with a cigarette body. The cigarette forward pushing mode is opposite to the cigarette backward pushing mode, namely the situation that the cigarette pushing plate 4 is in contact with the filter stick of the cigarette. Because the cigarette body is softer, therefore, the reverse thrust mode requires higher to the area of contact, if the area of contact is less, the cigarette props up the deformation easily.

Meanwhile, under the condition that the third guide plate 15 extends to the bottom plate 3, the cigarettes are still separated by the third guide plate 15 after falling onto the bottom plate 3, the thickness of the third guide plate 15 is increased between two adjacent cigarettes on the same layer in the two layers of cigarettes to be pushed out, the gap is relatively large, the cigarettes are loosened when being pushed out of the cigarette discharging channel 17, and then the cigarette group width can meet the subsequent packaging requirement by the long contracted inlet section of the shaping cavity 64. Under the condition that the height interval between the third guide plate 15 and the bottom plate 3 is larger than or equal to the height interval between two layers of cigarettes, the two layers of cigarettes needing to be pushed are not separated by the third guide plate 15 any more, and the gap between two adjacent cigarettes on the same layer can be reduced, so that the arrangement of the cigarettes in the cigarette group is more compact, the cigarette group can be integrated in place only by a short contracted inlet section, and the width required by packaging can be adjusted to be more efficiently and reliably.

Referring to fig. 2-3, in some embodiments, the bottom end of the second guide plate 14 is lower than the bottom ends of the 8 third guide plates 15. Like this, two rows of cigarettes in bottom still can receive the separation effect of second baffle 14 after breaking away from third baffle 15, are separated into two sets of cigarettes that are located the second baffle 14 left and right sides by second baffle 14, reduce the interference between two sets of cigarettes, make two rows of cigarettes at the bottom arrange loose and not scattered after the whereabouts, reduce the messy cigarette risk, and this effect is more obvious when second baffle 14 falls into two sets of symmetries with 8 third baffles 15. When the second guide plate 14 divides the 8 third guide plates 15 into two symmetrical groups, the second guide plate 14 is located at the middle of the 8 third guide plates 15, that is, the second guide plate 14 is the middle one 12, the two sides of the second guide plate 14 are respectively provided with 4 third guide plates 15 (corresponding to 5 smoke discharge channels 17), the two groups of third guide plates 15 (corresponding to two groups of smoke discharge channels 17) at the two sides of the second guide plate 14 are symmetrically arranged around the second guide plate 14, and the second guide plate 14 symmetrically separates the 10 smoke discharge channels 17.

Wherein the bottom end of the second guiding plate 14 may be higher than the upper surface of the bottom plate 3, i.e. the bottom end of the second guiding plate 14 is located between the bottom end of the third guiding plate 15 and the upper surface of the bottom plate 3, or, referring to fig. 2, the bottom end of the second guiding plate 14 may also be lower than or flush with the upper surface of the bottom plate 3.

When the bottom end of the second guide plate 14 is lower than or flush with the upper surface of the bottom plate 3, the second guide plate 14 can more fully separate two groups of cigarettes positioned at two sides of the second guide plate 14 in the two rows of cigarettes at the bottom, and the cigarette messing risk is more reliably reduced. At this time, referring to fig. 1 in conjunction with fig. 10-11, the smoke pusher plate 4 may be provided with a slot 41. The insertion groove 41 is provided corresponding to the second guide plate 14 and penetrates the smoke pushing plate 4 in the thickness direction (or in the up-down direction) of the smoke pushing plate 4. When the second guide plate 14 is the guide plate 12 located at the center, the slot 41 is located at the center of the smoke pusher 4. In this way, during the process that the cigarette pushing plate 4 pushes the cigarettes falling on the bottom plate 3 backwards, the second guide plate 14 can pass through the slot 41 without obstructing the reciprocating movement of the cigarette pushing plate 4, so that the second guide plate 14 can smoothly reciprocate. Meanwhile, the second guide plate 14 penetrating through the slot 41 can also play a role in guiding the reciprocating movement of the cigarette pushing plate 4, so that the cigarette pushing plate 4 can move back and forth along a desired path more accurately.

In addition, in the case that the bottom end of the second guide plate 14 is lower than the upper surface of the bottom plate 3, referring to fig. 2 in combination with fig. 9, the bottom plate 3 is provided with a catching groove 31. The catch 31 is arranged in correspondence with the second guide plate 14. When the second guide plate 14 is located at the middle, the clamping groove 31 is located at the middle of the cigarette pushing plate 4. The card slot 31 may or may not extend along the bottom plate 3 in the up-down direction. The second guide plate 14 is inserted into the card slot 31. Because the bottom end of the second guide plate 14 is restrained by the clamping groove 31, the second guide plate 14 has higher structural stability and is less prone to deflection or deformation, so that the separation effect can be reliably achieved, and under the condition that the slot 41 is formed in the cigarette pushing plate 4, the second guide plate 14 can conveniently and smoothly pass through the slot 41, and a smoother and efficient cigarette pushing process is achieved.

Fig. 7 exemplarily shows the structure of the second guide plate 14, and as can be seen from fig. 7, in some embodiments, the second guide plate 14 includes a first plate portion 141 and a second plate portion 142, the second plate portion 142 is connected to a bottom end of the first plate portion 141, and the second plate portion 142 protrudes forward relative to the first plate portion 141. At this time, the lower surface of the second plate portion 142 constitutes the bottom end of the second guide plate 14. When the bottom end of the second guide plate 14 is inserted into the slot 31 and the slot 41, the second guide plate 14 is inserted into the slot 31 and the slot 41 through the second plate portion 142. The second plate portion 142 protrudes forward relative to the first plate portion 141, so that on one hand, the contact area between the second guide plate 14 and the clamping groove 31 can be increased, the structural stability of the second guide plate 14 is further improved, and on the other hand, the second guide plate 14 can be embedded into the slot 41 before the cigarette pushing plate 4 reaches the position right below the cigarette dropping channel 17, so that the cigarette pushing plate 4 is guided to push out the cigarettes more stably and reliably.

Fig. 8 exemplarily shows the structure of the third guide plate 15. Referring to FIG. 8, in some embodiments, the inner surface of the third guide plate 15 is planar.

Fig. 5-6 exemplarily show the structure of the first guide plate 13. Referring to fig. 5-6, in some embodiments, the first guide plate 13 is provided with a protrusion 16, and the protrusion 16 is located on an inner surface of the first guide plate 13 and is located at a lower portion of the first guide plate 13. The convex part 16 can reduce the width of the outlet section of the corresponding cigarette discharging channel 17, plays a role in furling when the cigarettes are separated from the cigarette discharging channel 17, reduces the clearance between the cigarettes and prevents the cigarettes from being mixed. And, through setting up convex part 16, be favorable to carrying the transport mode of cigarette in lower cigarette passageway 17 to become vertical transport by the slope for two rows of cigarette in the bottommost are in vertical state, and the cigarette pushing plate 4 of being convenient for carries out the propelling movement.

Wherein the projections 16 may have an arcuate surface to more reliably guide the vertical drop of the tobacco rod and prevent the projections 16 from damaging the tobacco rod by having a sharp portion.

In addition, returning to fig. 1-4, in some embodiments, the bottom end of the first guide plate 13 is lower than the bottom end of the third guide plate 15 and contacts the bottom plate 3. At this time, the bottom plate 3 may support the first guide plate 13, enhancing structural stability. Moreover, the first guide plate 13 can play a role in restraining and guiding cigarettes after the cigarettes are separated from the bottom end of the third guide plate 15, so that the cigarettes are prevented from being scattered.

Figures 10-12 illustrate the structure of the smoke push plate 4 by way of example.

Referring to fig. 10-12, in some embodiments, the lower surface of the cigarette pushing plate 4 is provided with a mounting groove 42, the mounting groove 42 is located at the right middle of the cigarette pushing plate 4 in the left-right direction, and the cigarette pushing plate 4 is connected with the supporting member 7 through the mounting groove 42. By arranging the mounting groove 42, the cigarette pushing plate 4 can be centered, so that the cigarette pushing plate 4 can push out the cigarettes more smoothly.

As shown in fig. 10 and 12, in some embodiments, the cigarette pushing plate 4 is provided with an elongated hole 43, a long axis of the elongated hole 43 extends in the front-rear direction, and the cigarette pushing plate 4 is connected to the support member 7 through the elongated hole 43. Like this, can realize pushing away the adjustment of cigarette board 4 mounted position in front and back direction, increase the installation flexibility, be convenient for adjust according to actual conditions and push away the mounted position of cigarette board 4 in front and back direction.

In addition, referring to fig. 11, in some embodiments, the receiving groove 44 is formed on the upper surface of the cigarette pushing plate 4. The accommodating grooves 44 correspond to the smoke discharging passages 17 one by one. In some embodiments, the accommodating groove 44 is an arc-shaped groove. The outermost two receiving grooves 44 are 1/4 circular grooves, and the other receiving grooves 44 are semicircular grooves.

Under the condition that is equipped with storage tank 44, when pushing away cigarette board 4 and releasing two rows of cigarette in the bottom, 3 rd smoke exhausting cigarette can fall to pushing away the storage tank 44 of cigarette board 4, storage tank 44 is spacing to 3 rd smoke exhausting cigarette, make 3 rd smoke exhausting cigarette location accurate, effectively prevent the messy cigarette, and, when pushing away cigarette board 4 and returning after pushing away two rows of cigarette in the bottom, the third smoke exhausting cigarette that originally is located on pushing away cigarette board 4 begins to fall from storage tank 44 tank bottoms, compare in the circumstances that pushing away cigarette board 4 upper surface is planar, the height that third row cigarette drops from pushing away cigarette board 4 to bottom plate 3 reduces, this is favorable to further improving a cigarette and carries stability, reduces the messy cigarette risk.

In summary, the cigarette group forming device 10 provided by the embodiment of the invention can meet the production requirements of medium-sized cigarettes, has the advantages of simple structure, reliable operation and convenient use, can realize one-time pushing and forming of cigarette groups, and can effectively improve the cigarette conveying stability.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A cigarette group forming device (10), comprising:

the cigarette discharging device comprises 11 guide plates (12), a cigarette discharging channel (17) is arranged between any two adjacent guide plates (12) in the 11 guide plates (12), the 11 guide plates (12) comprise two first guide plates (13), 1 second guide plate (14) and 8 third guide plates (15), the second guide plates (14) and the 8 third guide plates (15) are arranged between the two first guide plates (13), and the 8 third guide plates (15) are divided into two groups by the second guide plates (14);

the smoke baffle plate (2) is arranged behind the 11 guide plates (12);

the bottom plate (3) is arranged below the cigarette discharging channel (17) and is used for receiving cigarettes falling from the cigarette discharging channel (17), and the height difference between the upper surface of the bottom plate (3) and the bottom ends of the cigarette blocking plate (2) and the 8 third guide plates (15) is greater than or equal to the height of two layers of cigarettes and smaller than the height of three layers of cigarettes; and

the cigarette pushing plate (4) is arranged in a reciprocating manner along the front-back direction and used for pushing the cigarettes falling on the bottom plate (3) backwards.

2. Group forming device (10) according to claim 1, characterized in that the bottom end of the second guide plate (14) is lower than the bottom ends of the 8 third guide plates (15).

3. The cigarette group forming device (10) according to claim 2, characterized in that the bottom end of the second guide plate (14) is lower than or flush with the upper surface of the bottom plate (3), and the cigarette pushing plate (4) is provided with a slot (41), and the second guide plate (14) passes through the slot (41) in the process that the cigarette dropped on the bottom plate (3) is pushed out backwards by the cigarette pushing plate (4).

4. Group forming device (10) according to claim 2, characterized in that said bottom plate (3) is provided with a slot (31), said second guide plate (14) being inserted in said slot (31).

5. A cigarette pack forming device (10) according to claim 1 wherein the second guide plate (14) comprises a first plate portion (141) and a second plate portion (142), the second plate portion (142) being connected to a bottom end of the first plate portion (141), the second plate portion (142) projecting forwardly relative to the first plate portion (141).

6. The group forming device (10) according to claim 1, characterized in that the difference in height between the upper surface of the bottom plate (3) and the bottom end of the third guide plate (15) is 2.5 times the diameter of a cigarette; and/or the width of the cigarette falling channel (17) is 0.5mm larger than the diameter of the cigarette.

7. The cigarette group forming device (10) according to claim 1, wherein the lower surface of the cigarette pushing plate (4) is provided with a mounting groove (42), the mounting groove (42) is positioned at the right middle of the cigarette pushing plate (4) in the left-right direction, and the cigarette pushing plate (4) is connected with the support member (7) through the mounting groove (42); and/or the cigarette pushing plate (4) is provided with a long round hole (43), the long axis of the long round hole (43) extends along the front-back direction, and the cigarette pushing plate (4) is connected with the support piece (7) through the long round hole (43).

8. Group forming device (10) according to any one of claims 1 to 7, characterized in that said first guide plate (13) is provided with protrusions (16), said protrusions (16) being located on the inner surface of said first guide plate (13) and being located at the lower part of said first guide plate (13).

9. The group forming device (10) of claim 8, wherein the projections (16) have arcuate surfaces.

10. A cigarette packaging machine, characterized by comprising a group forming device (10) according to any one of claims 1 to 9.

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