Cigarette group forming device and cigarette packaging machine

Abstract

The present invention relates to the technical field of tobacco packaging, and in particular to a cigarette group forming device and a cigarette packaging machine. The cigarette group forming device comprises: 11 guide plates, a lower smoke channel is provided between any two adjacent guide plates among the 11 guide plates, the 11 guide plates include two first guide plates, one second guide plate and eight third guide plates, the second guide plate and the eight third guide plates are both arranged between the two first guide plates, and the second guide plate divides the eight third guide plates into two groups; a smoke baffle, located behind the 11 guide plates; a bottom plate, arranged below the lower smoke channel, the height difference between the upper surface of the bottom plate and the bottom ends of the smoke baffle and the eight 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 a cigarette pushing plate, which is arranged to be reciprocatingly movable in the front-rear direction, and is used to push the cigarettes that fall onto the bottom plate backwards. In this way, the pushing and forming of 20 cigarettes, totaling 10 cigarettes in two rows, can be completed at one time, and the cigarette conveying stability is relatively high.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco packaging, in particular to a cigarette forming device and a cigarette packaging machine. Background Art

[0002] The cigarette group forming device is an important part of the cigarette packaging machine. It arranges the cigarettes into groups as required and pushes them out so that they can be formed into qualified small boxes of cigarettes later.

[0003] For a pack of 20 cigarettes, there are different grouping methods such as 7-6-7, 7-7-6 and 10×2 rows. Among them, for products using the 10×2 row grouping method, the cigarette group forming device in the relevant technology generally adopts a two-push forming method. During the two push forming processes, the cigarettes are easy to interfere with each other, affecting the stability of cigarette transportation, increasing the quality risks of cigarette residues, breakage, contact, etc., resulting in the appearance of defective products. Summary of the invention

[0004] A technical problem to be solved by the present invention is to improve the cigarette conveying stability of a cigarette group forming device.

[0005] In order to solve the above problems, the present invention provides a smoke composition forming device, comprising:

[0006] 11 guide plates, a smoke lowering channel is provided between any two adjacent guide plates among the 11 guide plates, the 11 guide plates include two first guide plates, one second guide plate and eight third guide plates, the second guide plate and the eight third guide plates are both provided between the two first guide plates, and the second guide plate divides the eight third guide plates into two groups;

[0007] Smoke shield, set behind 11 guide plates;

[0008] A bottom plate is provided below the smoke lowering channel and is used to catch the cigarettes falling from the smoke lowering channel. The height difference between the upper surface of the bottom plate and the smoke baffle and the bottom ends of the eight 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

[0009] The cigarette pushing plate is arranged to be reciprocatingly movable along the front-back direction and is used for pushing the cigarettes that fall onto the bottom plate backwards.

[0010] In some embodiments, a bottom end of the second guide plate is lower than bottom ends of the eight third guide plates.

[0011] In some embodiments, the bottom end of the second guide plate is lower than or flush with the upper surface of the bottom plate, and a slot is provided on the cigarette pushing plate. When the cigarette pushing plate pushes the cigarette that falls onto the bottom plate backward, the second guide plate passes through the slot.

[0012] In some embodiments, a card slot is provided on the bottom plate, and the second guide plate is inserted into the card slot.

[0013] In some embodiments, the second guide plate includes a first plate portion and a second plate portion, the second plate portion is connected to a bottom end of the first plate portion, and the second plate portion protrudes forward relative to the first plate portion.

[0014] 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 the diameter of the cigarette; and / or the width of the lower cigarette channel is 0.5 mm larger than the diameter of the cigarette.

[0015] In some embodiments, a mounting groove is provided on the lower surface of the cigarette pushing plate, the mounting groove is located in the middle of the cigarette pushing plate in the left-right direction, and the cigarette pushing plate is connected to the support member through the mounting groove; and / or, an oblong hole is provided on the cigarette pushing plate, the long axis of the oblong hole extends along the front-to-back direction, and the cigarette pushing plate is connected to the support member through the oblong hole.

[0016] In some embodiments, a convex portion is provided on the first guide plate, and the convex portion is located on the inner surface of the first guide plate and at the lower part of the first guide plate.

[0017] In some embodiments, the protrusion has a curved surface.

[0018] The present invention further provides a cigarette packaging machine, which includes the cigarette group forming device of each embodiment of the present invention.

[0019] The cigarette group forming device provided by the present invention can complete the pushing and forming of 2 rows of 10 cigarettes, a total of 20 cigarettes, at one time, and the cigarette conveying stability is relatively high.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a three-dimensional schematic diagram of a smoke composition forming device in an embodiment of the present invention.

[0023] Figure 2 It is a three-dimensional schematic diagram of the smoke lowering assembly in an embodiment of the present invention.

[0024] Figure 3 It is the front view of the smoke lowering assembly in the embodiment of the present invention.

[0025] Figure 4 It is a rear view of the smoke lowering assembly in the embodiment of the present invention.

[0026] Figure 5 and Figure 6 It is a three-dimensional schematic diagram of two first guide plates in an embodiment of the present invention.

[0027] Figure 7 Schematic diagram of a three-dimensional view of the second guide plate in an embodiment of the present invention.

[0028] Figure 8 Schematic diagram of a three-dimensional diagram of the third guide plate in the embodiment of the present invention.

[0029] Fig. 9 Schematic diagram of a three-dimensional bottom plate in an embodiment of the present invention.

[0030] Fig.10 It is a three-dimensional schematic diagram of the cigarette pushing plate in the embodiment of the present invention.

[0031] Fig.11 It is a longitudinal cross-sectional schematic diagram of the cigarette pushing plate in the embodiment of the present invention.

[0032] Fig.12 It is a bottom view of the cigarette pushing plate in the embodiment of the present invention.

[0033] Fig.13 It is a three-dimensional schematic diagram of a shaping device in an embodiment of the present invention.

[0034] Fig.14 for Fig.13 Schematic diagram after omitting the cover.

[0035] Description of reference numerals:

[0036] 10. Smoke forming device;

[0037] 10a, smoke lowering assembly; 10b, smoke pushing mechanism 10b;

[0038] 1. flue assembly; 11. mounting plate; 12. guide plate; 13. first guide plate; 14. second guide plate; 141. first plate portion; 142. second plate portion; 15. third guide plate; 16. convex portion; 17. down smoke channel;

[0039] 2. Smoke shield;

[0040] 3. Bottom plate; 31. Card slot;

[0041] 4. Cigarette push plate; 41. slot; 42. mounting slot; 43. oblong hole; 44. receiving slot;

[0042] 6. shaping device; 61. first guide member; 62. second guide member; 63. cover plate; 64. shaping cavity; 65. inclined surface;

[0043] 7. Support parts. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without carrying out creative work are within the scope of protection of the present invention.

[0045] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0046] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0047] In the description of the present invention, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0048] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0049] In cigarette packaging machines such as special-shaped cigarette packaging machines (such as full-open cigarette packaging machines), the cigarette group forming device is generally arranged downstream of the cigarette warehouse (not shown in the figure) and arranged below the cigarette stirring device (such as the cigarette stirring roller, not shown in the figure) of the cigarette warehouse. The cigarette stirring device is generally driven by an independent servo motor to rotate forward and reverse to achieve the smooth falling of the cigarettes. During operation, the cigarettes fall to the cigarette group forming device under the action of the cigarette stirring device, and are sorted into groups and pushed out by the cigarette group forming device, so as to complete various packaging actions together with the inner packaging paper to form a small box cigarette package.

[0050] In recent years, with the rapid development of the cigarette market, more diversified requirements have been put forward for the specifications of cigarettes and cigarette packages. For example, cigarettes have different specifications such as regular cigarettes (diameter is about 7.8mm) and medium-thin cigarettes (medium diameter is about 6.36mm). The number of cigarettes in a single package is not only 20, but also 10 and 5. At the same time, for products with 20 cigarettes in a single package, there are different grouping methods such as 7-6-7 rows, 7-7-6 rows and 10×2 rows. "Row" refers to layer. 7-6-7 row means a total of three layers, 7 cigarettes in the first layer, 6 cigarettes in the second layer, and 7 cigarettes in the third layer. 7-7-6 row means a total of three layers, 7 cigarettes in the first layer, 7 cigarettes in the second layer, and 6 cigarettes in the third layer. 10×2 row means a total of two layers, each layer has 10 cigarettes.

[0051] For 10×2 row products, some cigarette group forming devices are limited by the structure and need to adopt a two-push forming method to form a 10×2 row cigarette group. During the two-push forming process, cigarettes are prone to interfere with each other, affecting the stability of cigarette conveying, increasing the quality risks of cigarette residues, breakage, and contact, and resulting in the appearance of defective products. This type of cigarette group forming device that adopts a two-push forming method is particularly difficult to adapt to thinner and softer medium-thin cigarettes.

[0052] In view of the above situation, the present invention improves the structure of the cigarette group molding device to achieve a more stable and reliable cigarette pushing and molding process.

[0053] Figure 1-Figure 14 The smoke composition shaping device of the present invention is exemplarily shown.

[0054] See also Figure 1-14 The cigarette assembly molding device 10 provided in the embodiment of the present invention includes a support member 7, a cigarette lowering assembly 10a, a cigarette pushing mechanism 10b and a molding device 6.

[0055] The cigarette lowering 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 member 7 can be a support plate or a support frame. The cigarette lowering assembly 10a is used to guide the cigarettes to fall, and it includes a flue assembly 1, a smoke baffle 2 and a bottom plate 3. The cigarette pushing mechanism 10b is used to push the cigarettes of the required number of layers that have fallen into place from front to back, and it 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 assembly 1 and is located on the cigarette pushing path. It is used to shape the cigarettes in the process of the cigarette pushing mechanism 10b pushing the cigarettes backwards, so that the cigarette group reaches the width required for the subsequent small box packaging.

[0056] It can be understood that "front and back" is defined based on the direction in which the cigarette pushing mechanism 10b pushes the cigarette out, "front" refers to the upstream along the pushing direction, and "rear" refers to the downstream along the pushing direction. The subsequent "left and right" is defined based on "front and back" and "up and down".

[0057] Among them, the flue assembly 1 includes a mounting plate 11 and a plurality of guide plates 12. The mounting plate 11 is installed on the rear plate of the cigarette bin (not shown in the figure) to connect the flue assembly 1 with the cigarette bin. All guide plates 12 are arranged on the mounting plate 11. Specifically, the guide plate 12 is arranged on the front end surface of the mounting plate 11 and is connected to the mounting plate 11 by connectors such as locating pins and bolts. All guide plates 12 are arranged side by side with intervals along the left and right directions, so that there is a gap between any two adjacent guide plates 12. The gap between two adjacent guide plates 12 forms a lower smoke channel 17 connected to the bottom outlet of the cigarette bin to guide the cigarettes to fall. In this way, the flue assembly 1 has a plurality of lower smoke channels 17, which can guide multiple cigarettes to fall. Each channel includes multiple layers of cigarettes stacked along the height direction. As Figure 1-4 As shown, along the direction from top to bottom, the guide plate 12 is inclined toward the middle of the mounting plate 11 in the left-right direction, so that all the guide plates 12 together form a cone shape that is generally wide at the top and narrow at the bottom. In this way, the cigarettes of each group can gradually move closer to each other during the falling process to reduce the gap.

[0058] The bottom plate 3 is arranged below the lower smoke passage 17 and is used to catch the cigarettes falling from the lower smoke passage 17. That is, the cigarettes fall onto the bottom plate 3 after falling along the lower smoke passage 17. The bottom plate 3 is mounted on the support member 7, for example, see Figure 1 The support member 7 is provided with a sinking groove, and the bottom plate 3 is arranged in the sinking groove. The upper surface of the bottom plate 3 is a plane. The cigarette falls along the lower cigarette channel 17 and then falls onto the upper surface of the bottom plate 3.

[0059] The smoke baffle 2 is connected to the flue assembly 1 and is located below the mounting plate 11 and behind the 11 guide plates 12. It is used to block cigarettes above the required number of layers when the cigarette pushing mechanism 10b pushes out cigarettes, so that only the required number of layers of cigarettes are pushed out by the cigarette pushing mechanism 10b. Figure 2 and Figure 4 In some embodiments, the smoke baffle 2 is connected to the guide plate 12. Specifically, the left and right sides of the smoke baffle 2 are respectively connected to the two guide plates 12 located at the outermost sides in the left and right directions among the 11 guide plates 12. In this way, there is almost no gap between the smoke baffle 2 and the rear end of the lower smoke channel 17, and the smoke baffle 2 can block the cigarettes above the required number of layers when the cigarette pushing mechanism 10b just starts to push the cigarettes away from the lower smoke channel 17, thereby more reliably preventing the cigarettes above the required number of layers from being pushed out.

[0060] The cigarette pushing mechanism 10b realizes the cigarette pushing function through the cigarette pushing plate 4. The cigarette pushing plate 4 is arranged to be reciprocatingly movable in the front-back direction, and is used to push the cigarettes that fall onto the bottom plate 3 backward. Figure 1In some embodiments, the cigarette pushing plate 4 is disposed on the support member 7, and the lower surface is located above the upper surface of the bottom plate 3, so that the cigarette pushing plate 4 reciprocates in the front-to-back direction relative to the bottom plate 3 to push out the cigarette. The reciprocating movement of the cigarette pushing plate 4 in the front-to-back direction is driven by the cigarette pushing driving mechanism. In some embodiments, the cigarette pushing driving mechanism includes a cam mechanism.

[0061] The shaping device 6 is arranged on the supporting member 7 and is located at the rear side of the smoke lowering channel 17 and opposite to the smoke pushing plate 4. Fig.13 The shaping device 6 has a shaping cavity 64, the entrance section of which gradually narrows along the pushing direction. When the cigarette pushing mechanism 10b pushes the cigarette out, the cigarette passes through the shaping cavity 64. Since the entrance section of the shaping cavity 64 gradually narrows along the pushing direction, the cigarettes can be brought closer to each other to form a more closely arranged cigarette group, so that a cigarette group with a width that meets the packaging requirements is obtained, and the shaping of the cigarette group is completed. For details, see Figure 13-14 In some embodiments, the shaping device 6 includes a first guide member 61, a second guide member 62 and a cover plate 63. The first guide member 61 and the second guide member 62 are arranged at intervals in the left-right direction and are opposite to each other. The cover plate 63 is overlapped on the first guide member 61 and the second guide member 62. In this way, a shaping cavity 64 is formed between the first guide member 61, the second guide member 62 and the cover plate 63. In addition, inclined surfaces 65 are provided on the opposite sides of the first guide member 61 and the second guide member 62. The inclined surface 65 extends backward from one end of the first guide member 61 and the second guide member 62 close to the lower smoke channel 17, and gradually tilts toward the inside of the shaping cavity 64 in the direction from front to back. In this way, the entrance section of the shaping cavity 64 is gradually narrowed along the ejection direction, so that the shaping device 6 can achieve the shaping function.

[0062] During operation, the cigarette stirring device located above the lower cigarette channel 17 rotates, so that the cigarettes in the cigarette storehouse are divided into several paths and fall into each lower cigarette channel 17, and continue to fall along the lower cigarette channel 17 under the action of gravity, and finally fall on the bottom plate 3. After the cigarettes fall on the bottom plate 3, the cigarette pushing plate 4 moves backward, pushes out the cigarettes of the bottom several layers (i.e. the required number of layers) on the bottom plate 3, and in the process of pushing out, the cigarette group passes through the shaping cavity 64, realizing the process of pushing and molding. After completing one push, the cigarette pushing plate 4 moves in the opposite direction, i.e. moves forward, and finally resets to wait for the next push. In the process of pushing the cigarette backward, as the cigarettes of the required number of layers are pushed out by the cigarette pushing plate 4, the cigarettes of the other layers above the required number of layers fall downward and fall on the cigarette pushing plate 4. When the cigarette pusher 4 completes pushing cigarettes once and returns to its original position, the cigarettes that originally fell on the cigarette pusher 4 gradually separate from the cigarette pusher 4 and fall onto the bottom plate 3, becoming cigarettes on the lower layer, waiting to be pushed out. After that, the cigarette pusher 4 can move backward again to push cigarettes again. This process is repeated until the production task is completed.

[0063] See also Figure 1-3 In some embodiments, the number of guide plates 12 in the flue assembly 1 is 11, and a smoke lowering channel 17 is provided between any two adjacent guide plates 12. In this way, the flue assembly 1 has a total of 10 smoke lowering channels 17, which can guide 10 cigarettes to fall at the same time.

[0064] The 11 guide plates 12 include two first guide plates 13, one second guide plate 14, and eight third guide plates 15. The two first guide plates 13 are the two guide plates 12 located at the outermost sides in the left-right direction among the 11 guide plates 12. The second guide plate 14 and the eight third guide plates 15 are both disposed between the two first guide plates 13. The second guide plate 14 is located between the eight third guide plates 15, dividing the eight third guide plates 15 into two groups.

[0065] The height difference between the upper surface of the bottom plate 3 and the bottom end of the smoke baffle 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 smoke baffle 2 is greater than 2.5 times the diameter of the cigarette and less than 3 times the diameter of the cigarette. In this case, the bottom plate 3 can reliably block the third layer (or the third row) of cigarettes while not hindering the pushing of the bottom two layers (or the bottom two rows) of cigarettes.

[0066] Also, see Figure 1-4 , the upper surface of the bottom plate 3 and the bottom ends of the eight third guide plates 15 are not in contact, but are spaced apart. Specifically, the height difference between the upper surface of the bottom plate 3 and the bottom ends of the eight 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 smoke baffle 2 is equal to 2.5 times the diameter of the cigarette.

[0067] Based on the above arrangement, when pushing cigarettes, the rear end surface of the cigarette pushing plate 4 contacts the two lowest rows of cigarettes and pushes the two lowest rows of cigarettes backwards, and enters the next station after the shaping cavity 64 shrinks. During the cigarette pushing process, the smoke blocking plate 2 blocks the third row of cigarettes to prevent the third row of cigarettes from being pushed out.

[0068] It can be seen that the cigarette pusher plate 4 can push out 10×2 rows of 20 cigarettes at one time, so that the cigarette group forming device 10 only needs one push to realize the forming of 10×2 rows of cigarette groups, meeting the packaging requirements of small boxes of cigarette packs with 10×2 rows of cigarette groups in the box. Compared with the two-push forming method, this one-push forming method reduces the number of pushes and can reduce the risk of interference between cigarettes in the group due to movement. Therefore, it is beneficial to improve the stability of cigarette transportation, reduce the risk of quality problems such as residual cigarettes, breakage or contact, and improve the product qualification rate. This allows the cigarette group forming device 10 to not only meet the grouping requirements of conventional cigarettes, but also meet the grouping requirements of medium and thin cigarettes, especially medium cigarettes.

[0069] For cigarettes of different specifications, the production requirements of cigarettes of different specifications can be met by simply changing the size of the lower cigarette channel 17. In some embodiments, the width of the lower cigarette channel 17 is greater than the diameter of the cigarette, so that the cigarettes can fall more smoothly. Specifically, in some embodiments, the width of the lower cigarette channel 17 is 0.5mm larger than the diameter of the cigarette, so that the cigarettes can fall smoothly and the gaps between cigarettes on the same layer can be smaller to prevent them from scattering. For example, for conventional cigarettes, the width of the lower cigarette channel 17 can be the sum of the diameter of the conventional cigarette 7.8mm and 0.5mm, that is, 8.3mm, and for medium cigarettes, the width of the lower cigarette channel 17 can be the sum of the diameter of the medium cigarette 6.36mm and 0.5mm, that is, 6.86mm.

[0070] In addition, based on the provided cigarette composition molding device 10, only one set of cigarette lowering assembly 10a is needed to complete one push molding, and no other structures need to be added to the cigarette lowering assembly 10a. Therefore, the structure of the cigarette composition molding device 10 is relatively simple.

[0071] Furthermore, the third guide plate 15 does not extend to contact the bottom plate 3, but has a gap with the bottom plate 3 that is greater than or equal to the height of two layers of cigarettes. This helps to increase the contact area between the cigarette pushing plate 4 and the cigarettes during the cigarette pushing process, thereby achieving a smoother and more reliable cigarette pushing process. At the same time, it helps to reduce the gaps between the cigarettes that fall onto the bottom plate 3, thereby making the cigarettes in the cigarette group more densely arranged.

[0072] Because, in the case where the third guide plate 15 extends to the bottom plate 3, if cigarette pushing is to be achieved smoothly, gaps corresponding to each third guide plate 15 need to be set on the cigarette pushing plate 4, so that during the cigarette pushing process, each third guide plate 15 can pass through the gaps to prevent the third guide plate 15 from hindering the reciprocating movement of the cigarette pushing plate 4. However, in this case, the cigarette pushing plate 4 is divided by the gap and cannot contact the cigarette as a whole. The contact area with the cigarette is reduced, which may cause problems such as tilting and deformation of the cigarette, and it is especially difficult to meet the demand for cigarette reverse pushing. When there is a height interval greater than or equal to two layers of cigarettes between the third guide plate 15 and the bottom plate 3, the third guide plate 15 will not interfere with the reciprocating cigarette pushing plate 4, and there is no need to set a gap on the cigarette pushing plate 4 for the third guide plate 15 to pass through during the cigarette pushing process. Therefore, the cigarette pushing plate 4 can contact the cigarette as a whole during the cigarette pushing process, so that the cigarette pushing plate 4 has a larger contact area with the cigarette during the cigarette pushing process, which is convenient for the cigarette pushing plate 4 to push the cigarette out more stably and reliably, reducing the risk of pushing crooked and cigarette deformation, so that the demand for cigarette reverse pushing can be better met. Cigarette reverse pushing refers to a cigarette pushing method in which the cigarette pushing plate 4 contacts the cigarette body. In contrast to the cigarette reverse pushing method, there is a cigarette forward pushing method, that is, the cigarette pushing plate 4 contacts the filter rod of the cigarette. Since the cigarette body is relatively soft, the reverse pushing method has a higher requirement for the contact area. If the contact area is small, the cigarette is easily deformed.

[0073] At the same time, when 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. In the two layers of cigarettes that need to be pushed out, the thickness of the third guide plate 15 is added between the two adjacent cigarettes in the same layer, and the gap is relatively large, which causes the cigarettes to be relatively loose when being pushed out of the lower cigarette channel 17, and then a longer shrinking entrance section of the shaping cavity 64 is required to make the width of the cigarette group meet the subsequent packaging requirements. In the case where the distance between the third guide plate 15 and the bottom plate 3 is greater than or equal to the height of the two layers of cigarettes, the two layers of cigarettes that need to be pushed out are no longer separated by the third guide plate 15, and the gap between the two adjacent cigarettes in the same layer can be reduced. Therefore, it is conducive to making the cigarettes in the cigarette group more closely arranged, so that only a shorter shrinking entrance section is required to shape the cigarette group in place, and the cigarette group can be adjusted to the required width for packaging more efficiently and reliably.

[0074] See also Figure 2-3 In some embodiments, the bottom end of the second guide plate 14 is lower than the bottom ends of the eight third guide plates 15. In this way, after the two rows of cigarettes at the bottom are separated from the third guide plates 15, they can still be separated by the second guide plates 14 and separated into two groups of cigarettes located on the left and right sides of the second guide plates 14, thereby reducing the interference between the two groups of cigarettes and making the bottom two rows of cigarettes loose but not scattered after falling, thereby reducing the risk of disordered cigarettes. This effect is more obvious when the second guide plate 14 divides the eight third guide plates 15 into two symmetrical groups. When the second guide plate 14 divides the eight third guide plates 15 into two symmetrical groups, the second guide plate 14 is located in the middle of the eight third guide plates 15, that is, the second guide plate 14 is the guide plate 12 located in the middle, and four third guide plates 15 (corresponding to five smoke lowering channels 17) are respectively provided on both sides of the second guide plate 14, and the two groups of third guide plates 15 (corresponding to two groups of smoke lowering channels 17) on both sides of the second guide plate 14 are symmetrically arranged with respect to the second guide plate 14, and the second guide plate 14 separates the ten smoke lowering channels 17 symmetrically.

[0075] The bottom end of the second guide plate 14 may be higher than the upper surface of the bottom plate 3, that is, the bottom end of the second guide plate 14 is located between the bottom end of the third guide plate 15 and the upper surface of the bottom plate 3, or, see Figure 2 The bottom end of the second guide plate 14 may also be lower than or flush with the upper surface of the bottom plate 3 .

[0076] 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 the two groups of cigarettes located on both sides of the second guide plate 14 in the two rows of cigarettes at the bottom, and more reliably reduce the risk of disorderly cigarettes. Figure 1 , and combined with Figure 10-11, a slot 41 may be provided on the cigarette pushing plate 4. The slot 41 is provided corresponding to the second guide plate 14, and penetrates the cigarette pushing plate 4 along the thickness direction of the cigarette pushing plate 4 (or in the up-down direction). When the second guide plate 14 is the guide plate 12 located in the middle, the slot 41 is located in the middle of the cigarette pushing plate 4. In this way, when the cigarette pushing plate 4 pushes the cigarette that has fallen onto the bottom plate 3 backward, the second guide plate 14 can pass through the slot 41 without hindering the reciprocating movement of the cigarette pushing plate 4, so that the second guide plate 14 can reciprocate smoothly. At the same time, the second guide plate 14 passing through the slot 41 can also guide the reciprocating movement of the cigarette pushing plate 4, so that the cigarette pushing plate 4 can reciprocate more accurately along the desired path.

[0077] In addition, when the bottom end of the second guide plate 14 is lower than the upper surface of the bottom plate 3, see Figure 2 , and combined with Fig. 9 , a card slot 31 is provided on the bottom plate 3. The card slot 31 is arranged corresponding to the second guide plate 14. When the second guide plate 14 is located in the middle, the card slot 31 is located in the middle of the cigarette pushing plate 4. In the up and down directions, the card slot 31 may or may not pass through the bottom plate 3. The second guide plate 14 is inserted into the card slot 31. Since the bottom end of the second guide plate 14 is constrained by the card slot 31, the structural stability of the second guide plate 14 is higher and it is less likely to deflect or deform. It can not only play a more reliable separation role, but also when the slot 41 is provided on the cigarette pushing plate 4, it is convenient for the second guide plate 14 to pass through the slot 41 more smoothly, thereby achieving a smoother and more efficient cigarette pushing process.

[0078] Figure 7 The structure of the second guide plate 14 is shown as an example. Figure 7 It can be seen that 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 the 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 card slot 31 and the slot 41, the second guide plate 14 is inserted into the card 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, which can increase the contact area between the second guide plate 14 and the card slot 31, further improve the structural stability of the second guide plate 14, and on the other hand, the second guide plate 14 can be embedded in the slot 41 before the cigarette pushing plate 4 reaches the lower part of the lower cigarette channel 17, so as to guide the cigarette pushing plate 4 to push the cigarette out more steadily and reliably.

[0079] Figure 8 The structure of the third guide plate 15 is exemplarily shown. Figure 8 In some embodiments, the inner surface of the third guide plate 15 is a plane.

[0080] Figure 5-6The structure of the first guide plate 13 is shown as an example. Figure 5-6 In some embodiments, a convex portion 16 is provided on the first guide plate 13, and the convex portion 16 is located on the inner surface of the first guide plate 13 and at the lower part of the first guide plate 13. The convex portion 16 provided can reduce the width of the outlet section of the corresponding lower smoke channel 17, play a role of gathering cigarettes in the process of leaving the lower smoke channel 17, reduce the gap between cigarettes, and prevent disorderly cigarettes. In addition, by providing the convex portion 16, it is helpful to change the conveying mode of cigarettes in the lower smoke channel 17 from inclined conveying to vertical conveying, so that the bottom two rows of cigarettes are in a vertical state, which is convenient for the cigarette pushing plate 4 to push.

[0081] The protrusion 16 may have an arc-shaped surface to more reliably guide the cigarette to fall vertically and prevent the protrusion 16 from damaging the cigarette due to its sharp portion.

[0082] In addition, back to Figure 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 can support the first guide plate 13 and enhance the structural stability. In addition, the first guide plate 13 can restrain and guide the cigarette after the cigarette leaves the bottom end of the third guide plate 15 to prevent the cigarette from being scattered.

[0083] Figure 10-12 The structure of the cigarette pushing plate 4 is shown as an example.

[0084] See also Figure 10-12 In some embodiments, a mounting groove 42 is provided on the lower surface of the cigarette pushing plate 4, and the mounting groove 42 is located in the middle of the left and right direction of the cigarette pushing plate 4, and the cigarette pushing plate 4 is connected to the support member 7 through the mounting groove 42. By providing the mounting groove 42, the position of the cigarette pushing plate 4 can be ensured to be centered, so that the cigarette pushing plate 4 can push the cigarette out more smoothly.

[0085] like Fig.10 and Fig.12 As shown, in some embodiments, the cigarette pushing plate 4 is provided with an oblong hole 43, the major axis of the oblong hole 43 extends along the front-to-back direction, and the cigarette pushing plate 4 is connected to the support member 7 through the oblong hole 43. In this way, the installation position of the cigarette pushing plate 4 can be adjusted in the front-to-back direction, the installation flexibility is increased, and the installation position of the cigarette pushing plate 4 in the front-to-back direction can be adjusted according to actual conditions.

[0086] Also, see Fig.11 In some embodiments, the upper surface of the cigarette pusher plate 4 is provided with a receiving groove 44. The receiving groove 44 corresponds to the lower smoke channel 17 one by one. In some embodiments, the receiving groove 44 is an arc groove. The two outermost receiving grooves 44 are 1 / 4 circular grooves, and the other receiving grooves 44 are semicircular grooves.

[0087] When the accommodating groove 44 is provided, when the cigarette pushing plate 4 pushes out the two bottom rows of cigarettes, the cigarettes in the third row can fall into the accommodating groove 44 of the cigarette pushing plate 4. The accommodating groove 44 limits the cigarettes in the third row, so that the cigarettes in the third row are accurately positioned, effectively preventing random cigarettes. In addition, when the cigarette pushing plate 4 returns after pushing out the two bottom rows of cigarettes, the cigarettes in the third row originally located on the cigarette pushing plate 4 start to fall from the bottom of the accommodating groove 44. Compared with the case where the upper surface of the cigarette pushing plate 4 is flat, the height of the third row of cigarettes falling from the cigarette pushing plate 4 to the bottom plate 3 is reduced, which is conducive to further improving the stability of cigarette transportation and reducing the risk of random cigarettes.

[0088] In summary, the cigarette group molding device 10 provided in the embodiment of the present invention can meet the production requirements of medium-sized cigarettes, and has a simple structure, reliable operation, and is easy to use. It can realize one-time pushing and molding of the cigarette group and can effectively improve the stability of cigarette transportation.

[0089] The above description is only an exemplary embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A smoke forming device (10), characterized in that: include: 11 guide plates (12), a smoke lowering channel (17) is provided between any two adjacent guide plates (12) of the 11 guide plates (12), the 11 guide plates (12) include two first guide plates (13), one second guide plate (14) and eight third guide plates (15), the second guide plate (14) and the eight third guide plates (15) are both provided between the two first guide plates (13), and the second guide plate (14) divides the eight third guide plates (15) into two groups; A smoke baffle (2) disposed behind the 11 guide plates (12); a bottom plate (3) disposed below the lower smoke passage (17) and used for catching cigarettes dropped from the lower smoke passage (17); the height difference between the upper surface of the bottom plate (3) and the bottom ends of the smoke baffle (2) and the eight third guide plates (15) being 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 (4) is arranged to be reciprocatingly movable in the front-rear direction and is used to push the cigarettes that fall onto the bottom plate (3) backwards.

2. The smoke composition 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 eight third guide plates (15).

3. The smoke composition 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 a slot (41) is provided on the cigarette pushing plate (4). When the cigarette pushing plate (4) pushes the cigarette that has fallen onto the bottom plate (3) backward, the second guide plate (14) passes through the slot (41).

4. The smoke composition forming device (10) according to claim 2, characterized in that: The bottom plate (3) is provided with a slot (31), and the second guide plate (14) is inserted into the slot (31).

5. The smoke composition forming device (10) according to claim 1, characterized in that: The second guide plate (14) comprises a first plate portion (141) and a second plate portion (142), wherein the second plate portion (142) is connected to the bottom end of the first plate portion (141), and the second plate portion (142) protrudes forward relative to the first plate portion (141).

6. The smoke composition forming device (10) according to claim 1, characterized in that: The height difference 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 the cigarette; and / or the width of the lower cigarette channel (17) is 0.5 mm greater than the diameter of the cigarette.

7. The smoke composition forming device (10) according to claim 1, characterized in that: The lower surface of the cigarette pushing plate (4) is provided with a mounting groove (42), the mounting groove (42) is located in the middle of the left-right direction of the cigarette pushing plate (4), and the cigarette pushing plate (4) is connected to the support member (7) through the mounting groove (42); and / or, the cigarette pushing plate (4) is provided with an oblong hole (43), the major axis of the oblong hole (43) extends along the front-back direction, and the cigarette pushing plate (4) is connected to the support member (7) through the oblong hole (43).

8. The smoke composition forming device (10) according to any one of claims 1 to 7, characterized in that: The first guide plate (13) is provided with a convex portion (16), and the convex portion (16) is located on the inner surface of the first guide plate (13) and at the lower part of the first guide plate (13).

9. The smoke composition forming device (10) according to claim 8, characterized in that: The convex portion (16) has an arc-shaped surface.

10. A cigarette packaging machine, characterized in that: It comprises a smoke forming device (10) as claimed in any one of claims 1 to 9.

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