Three-wheel fan-shaped sheet and soft-box packing machine

Abstract

The utility model relates to the technical field of packaging equipment, and specifically discloses a three-wheel fan-shaped piece and soft box packaging machine. The fan-shaped piece comprises a supporting seat, a plurality of fan teeth and a plurality of connecting blocks. The supporting seat is arc-shaped, and the outer arc surface of the supporting seat is a seat top arc surface. All the fan teeth are uniformly distributed along the circumferential direction of the supporting seat. The fan teeth have a tooth root end and a tooth top end opposite in the length direction. The end surface of the tooth root end away from the tooth top end is a tooth root arc surface, and the tooth root arc surface is in close contact with the seat top arc surface. The connecting blocks are arranged on one side of the supporting seat. The number of connecting blocks is the same as that of fan teeth. One end of each connecting block is detachably connected to the supporting seat, and the other end of each connecting block is detachably connected to the tooth root end of one fan tooth. The separable structure design of the fan-shaped piece reduces the waste of spare parts, and meets the needs of efficient production and cost reduction and efficiency increase.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a three-wheel fan-shaped sheet and soft box packaging machine. Background Technology

[0002] The ZB28 soft pack packaging machine is a key piece of equipment in cigarette packaging production. Its main function is to orient cigarettes into groups of 20 in a 767 arrangement, and then transfer them sequentially to the first, second, third, and fourth conveyor belts to complete processes such as inner lining paper wrapping, folding, label paper packaging, and sealing paper affixing, ultimately forming qualified cigarette packs for downstream equipment to perform transparent paper packaging.

[0003] At station number three, the cigarette pack undergoes label folding and heating / drying of the bottom adhesive area. In this process, the bottom heater directly acts on the adhesive-coated area of ​​the label to promote rapid adhesive curing. A gasket is located on the back of the heater to adjust the distance between the heated surface and the bottom of the cigarette pack; a turret mold is installed in front of it to receive the cigarette packs transferred from station number two. Station number three has 36 stations. During the cigarette pack reception process, each mold has one side folded by the first corner folder. A fan-shaped plate and its pressure strip are placed between the mold and the heater. Their function is to continuously support and position the folded corner of the label at the bottom of the cigarette pack during the rotation of station number three, ensuring a stable fold.

[0004] However, in actual operation, factors such as fluctuations in the quality of incoming label paper, improper equipment operation and maintenance, or insufficient precision in maintenance and adjustment often lead to unstable label paper feeding, resulting in irregular cigarette pack shapes. These cigarette packs are prone to interference with components such as the turret mold box and fan-shaped blades in the No. 3 reel, causing frequent cigarette-clamping failures. Frequent cigarette clamping not only affects production efficiency but also easily causes deformation of the fan-shaped blades' teeth. Slight deformation can cause defects such as broken label paper corners and whitening of the surface; severe deformation may impact or scratch adjacent folding devices and hot-sealing irons, causing more serious equipment damage.

[0005] Currently, the fan-shaped blade has an integral structure, with all fan teeth fixed to the same support base. When a local fan tooth deforms due to smoke trapping, maintenance faces two major challenges: First, the correction work is difficult, requiring precise positioning and fine-tuning of the deformed fan tooth, demanding high experience from maintenance personnel. Furthermore, it's difficult to guarantee the matching accuracy of all fan teeth with their corresponding mold boxes after repair, resulting in insufficient stability. Second, if the deformation is severe, the entire fan-shaped blade assembly usually needs to be replaced. In reality, most faults involve only one or two fan teeth; replacing the entire assembly results in the discarding of a large number of intact fan teeth, leading to high spare parts consumption and costs, which is detrimental to the company's cost reduction and efficiency improvement efforts. Utility Model Content

[0006] The purpose of this utility model is to provide a three-wheeled fan-shaped sheet and soft box packaging machine to reduce spare parts waste and meet the needs of efficient production and cost reduction.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] The three-wheeled fan-shaped blade includes a support base, multiple fan teeth, and multiple connecting blocks. The support base is arc-shaped, and its outer arc surface is the top arc surface. All the fan teeth are evenly distributed circumferentially along the support base. Each fan tooth has a root end and a tooth tip opposite each other in the length direction. The end face of the tooth root end away from the tooth tip is a tooth root arc surface, which fits against the top arc surface. The connecting blocks are located on one side of the support base. The number of connecting blocks is the same as the number of fan teeth. One end of each connecting block is detachably connected to the support base, and the other end of each connecting block is detachably connected to the root end of one of the fan teeth.

[0009] As an optional technical solution for the three-wheeled fan-shaped blade, the three-wheeled fan-shaped blade further includes a plurality of first locking members. The connecting block has at least one first connecting hole through it. The fan tooth is provided with tooth connecting holes. The number of tooth connecting holes is the same as the number of first connecting holes and they correspond one-to-one. The first locking members connect and fasten the fan tooth and the connecting block through the tooth connecting holes and the first connecting holes.

[0010] As an optional technical solution for the three-wheeled sector blade, the hole wall of the toothed connecting hole is provided with a first internal thread, the first locking member includes a first bolt, the screw of the first bolt is provided with a first external thread, the first internal thread and the first external thread are threadedly engaged, so that the connecting block is clamped between the screw head of the first bolt and the sector tooth.

[0011] As an optional technical solution for the three-wheeled sector blade, the three-wheeled sector blade further includes several second locking components. The connecting block has at least one second connecting hole through it. The support base is provided with a seat connecting hole. The number of seat connecting holes and the number of second connecting holes are the same and correspond one-to-one. The second locking components connect and fasten the support base and the connecting block through the seat connecting hole and the second connecting hole.

[0012] As an optional technical solution for the three-wheeled fan-shaped plate, the wall of the seat connecting hole is provided with a second internal thread, the second locking member includes a second bolt, the screw of the second bolt is provided with a second external thread, the second internal thread and the second external thread are threadedly engaged, so that the connecting block is clamped between the screw head of the second bolt and the support seat.

[0013] As an optional technical solution for the three-wheeled fan-shaped blades, the edges of the connecting block are rounded.

[0014] As an optional technical solution for the three-wheeled fan-shaped plate, the three-wheeled fan-shaped plate also includes a number of third locking elements, and the support base also includes a third connecting hole. The number of third connecting holes is the same as the number of third locking elements, and each third locking element passes through a third connecting hole and is connected to the external environment.

[0015] As an optional technical solution for the three-wheeled fan-shaped blades, the length direction of the third connecting hole is parallel to the thickness direction of the support base, and all the third connecting holes are evenly distributed along the circumferential distance of the support base.

[0016] As an optional technical solution for the three-wheeled fan-shaped blades, the connecting block is made of No. 45 steel.

[0017] A flexible packaging machine includes a mold, a heater, and the aforementioned three-wheeled fan-shaped blades. The mold is used to hold cigarette packs to be folded, the heater is used to promote the solidification of the material in the cigarette pack, and the three-wheeled fan-shaped blades are used to support the cigarette pack as it passes between the mold and the heater.

[0018] The beneficial effects of this utility model are:

[0019] The three-wheeled fan-shaped blades are designed with a detachable structure, including a support base, multiple independent fan teeth, and multiple connecting blocks, allowing for independent assembly and disassembly of individual fan teeth. When a fan tooth deforms due to a smoke-trapping malfunction, it is not necessary to replace the entire three-wheeled fan-shaped blades; only the damaged fan tooth needs to be replaced. The cost of a single fan tooth is low, significantly reducing maintenance difficulty and spare parts costs. Simultaneously, the root arc surface of the fan tooth fits snugly against the top arc surface of the support base, ensuring positioning accuracy after installation, compatibility with the external environment, maintaining normal operating stability, and avoiding compatibility issues caused by localized deformation. This structure fundamentally reduces spare parts waste, meeting the needs of efficient production and cost reduction.

[0020] This flexible box packaging machine uses a three-wheeled fan-shaped blade with independently replaceable fan teeth. This solves the problems of difficulty in repairing and correcting a single deformed fan tooth, and the high cost and time-consuming replacement of the entire fan-shaped blade assembly. It reduces maintenance costs and spare parts consumption, significantly shortens replacement and maintenance time, and improves the operating efficiency of the flexible box packaging machine. This design significantly reduces spare parts procurement costs and enhances overall economic efficiency and sustainability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the three-wheeled fan-shaped blade provided in this embodiment of the utility model;

[0022] Figure 2 This is an exploded view of the three-wheeled fan-shaped blades provided in this embodiment of the utility model;

[0023] Figure 3 This is a front view of the three-wheeled sector-shaped blade provided in this embodiment of the utility model;

[0024] Figure 4 This is a rear view of the three-wheeled fan-shaped blades provided in an embodiment of this utility model.

[0025] In the picture:

[0026] 100. Sector tooth; 101. Tooth tip; 102. Tooth root arc surface; 103. Tooth connecting hole;

[0027] 200. Support base; 201. Top arc surface of the base; 202. Third connecting hole; 203. Base connecting hole;

[0028] 300, Connecting block; 301, First connecting hole; 302, Second connecting hole. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] like Figures 1 to 4 As shown, this utility model provides a three-wheeled fan-shaped blade, including a support base 200, multiple fan teeth 100, and multiple connecting blocks 300; the support base 200 is arc-shaped, and the outer arc surface of the support base 200 is the seat top arc surface 201; all the fan teeth 100 are evenly distributed along the circumference of the support base 200, and each fan tooth 100 has a root end and a tooth tip 101 opposite to each other in the length direction, and the end face of the root end away from the tooth tip 101 is the tooth root arc surface 102, which fits against the seat top arc surface 201; the connecting blocks 300 are provided on one side of the support base 200, and the number of connecting blocks 300 is the same as that of the fan teeth 100, one end of each connecting block 300 is detachably connected to the support base 200, and the other end of each connecting block 300 is detachably connected to the tooth root end of one fan tooth 100.

[0034] The three-wheeled fan-shaped blades are designed with a detachable structure, including a support base 200, multiple independent fan teeth 100, and multiple connecting blocks 300, enabling independent assembly and disassembly of each fan tooth 100. When a fan tooth 100 deforms due to a smoke-trapping malfunction, it is not necessary to replace the entire three-wheeled fan-shaped blades; only the damaged fan tooth 100 needs to be replaced. The cost of a single fan tooth 100 is low, significantly reducing maintenance difficulty and spare parts costs. Simultaneously, the root arc surface 102 of the fan tooth 100 fits snugly with the top arc surface 201 of the support base 200, ensuring positioning accuracy after installation, compatibility with the external environment, maintaining normal operating stability, and avoiding the problem of decreased matching due to local deformation. This structure reduces spare parts waste at its source, meeting the needs of efficient production and cost reduction.

[0035] In this embodiment, the outline and dimensional parameters of the sector tooth 100 are completely consistent with those of a single sector tooth 100 in a conventional three-wheeled sector blade, ensuring compatibility with existing mold boxes, sector blade pressure strips, and other components after modification. The dimensions of the support base 200 are the same as those of the base portion of a conventional three-wheeled sector blade, ensuring that it can directly replace the conventional three-wheeled sector blade and be installed in a predetermined position.

[0036] In this embodiment, the three-wheeled fan-shaped blades also include several first locking members. The connecting block 300 has at least one first connecting hole 301. The fan teeth 100 are provided with tooth connecting holes 103. The number of tooth connecting holes 103 and the number of first connecting holes 301 are the same and correspond one-to-one. The first locking members connect and fasten the fan teeth 100 and the connecting block 300 through the tooth connecting holes 103 and the first connecting holes 301. Specifically, the connecting block 300 is provided with two first connecting holes 301. The diameter of the first connecting holes 301 and the diameter of the tooth connecting holes 103 are both 3 mm.

[0037] This connection method makes the disassembly and installation of individual sector teeth 100 more convenient, eliminating the need to disassemble the entire three-wheel sector blade assembly. This simplifies the maintenance process, reduces downtime, eliminates the need for special tools, improves maintenance efficiency, and lowers the skill requirements for operators. Simultaneously, the fixing of the connecting block 300 to the sector teeth 100 ensures the stability of the sector teeth 100 during operation, preventing positioning deviations caused by loosening during work, ensuring the continuity of the cigarette pack folding process, and reducing malfunctions caused by displacement of the sector teeth 100.

[0038] Furthermore, the hole wall of the toothed connection hole 103 is provided with a first internal thread, and the first locking member includes a first bolt. The shank of the first bolt is provided with a first external thread, and the first internal thread and the first external thread are threadedly engaged, so that the connecting block 300 is clamped between the head of the first bolt and the sector tooth 100. Specifically, the first locking member also includes a first nut, which is threadedly engaged with the end of the shank of the first bolt away from the head of the first bolt.

[0039] The connecting block 300 and the sector tooth 100 are tightly fixed by the clamping action of the screw head and the sector tooth 100, ensuring a reliable connection and convenient disassembly. The threaded connection provides a uniform preload, has good self-locking properties and reusability, effectively preventing the sector tooth 100 from loosening during operation, avoiding stress concentration, ensuring long-term structural stability, and extending the service life of the sector tooth 100 and the connecting block 300. This design reduces the experience requirements for maintenance personnel, allowing even inexperienced maintenance personnel to easily complete replacements. Furthermore, the threaded connection structure is simple and easy to assemble and disassemble, further improving maintenance efficiency.

[0040] In this embodiment, the three-wheeled fan-shaped blades further include several second locking members. The connecting block 300 has at least one second connecting hole 302 through it, and the support base 200 has a seat connecting hole 203. The number of seat connecting holes 203 and the number of second connecting holes 302 are the same and correspond one-to-one. The second locking members connect and fasten the support base 200 and the connecting block 300 through the seat connecting holes 203 and the second connecting holes 302. Specifically, the connecting block 300 has two second connecting holes 302, and the diameter of both the second connecting hole 302 and the seat connecting hole 203 is 3 mm.

[0041] This connection method ensures the secure fixing of the connecting block 300 to the support base 200, thereby ensuring the overall positioning accuracy of the sector teeth 100 and realizing a detachable connection between the connecting block 300 and the support base 200. It enhances the rigidity of the overall structure of the three-wheel sector teeth, preventing the sector teeth 100 from shifting during high-speed operation, preventing displacement due to vibration or load, improving operational reliability, and ensuring the folding accuracy of the bottom corner of the cigarette pack. Simultaneously, the detachable design allows the support base 200 to be reused, reducing spare parts inventory.

[0042] Furthermore, the wall of the connecting hole 203 is provided with a second internal thread, and the second locking element includes a second bolt. The shank of the second bolt is provided with a second external thread, and the second internal thread and the second external thread are threadedly engaged, so that the connecting block 300 is clamped between the head of the second bolt and the support seat 200. Specifically, the second locking element also includes a second nut, which is threadedly engaged with the end of the shank of the second bolt away from the head of the second bolt.

[0043] The connecting block 300 is clamped between the screw head and the support base 200 via a threaded connection, resulting in high connection strength and easy disassembly. This design distributes the stress, improves the deformation resistance of the connecting block 300 and the support base 200, facilitates adjustment and maintenance, and is particularly suitable for long-term high-frequency vibration conditions. It reduces the frequency of maintenance due to loosening of the sector tooth 100, while also reducing wear on connecting parts and extending their service life. Standard threaded connections are readily available, reducing spare parts management costs.

[0044] In this embodiment, the connecting block 300 is a cuboid, and two first connecting holes 301 and two second connecting holes 302 are respectively disposed at the four corners of the connecting block 300.

[0045] For example, both the first bolt and the second bolt are selected as external hexagonal head bolts.

[0046] In this embodiment, the edges of the connecting block 300 are rounded.

[0047] The rounded corners prevent sharp edges from scratching operators or damaging other components during installation or maintenance, thus improving operational safety. Simultaneously, the rounded corners reduce stress concentration at sharp edges, enhancing the fatigue resistance of the connecting block 300 and preventing cracks or deformation caused by stress concentration during installation and use. This improves the durability of the component, avoids injuries to personnel during maintenance, and meets ergonomic requirements.

[0048] In this embodiment, the three-wheeled fan-shaped blades also include several third locking elements, and the support base 200 also includes third connecting holes 202. The number of third connecting holes 202 is the same as the number of third locking elements, and each third locking element passes through a third connecting hole 202 and is connected to the external environment.

[0049] The support base 200 is fixed to the external environment by the third locking element and the third connecting hole 202, ensuring the stable installation of the entire three-wheel fan-shaped blade. This fixing method prevents the support base 200 from shifting or loosening during operation, improves the convenience of maintenance, and ensures the relative positional accuracy of the three-wheel fan-shaped blade and the mold box, thereby reducing the risk of smoke clamping failure caused by inaccurate positioning.

[0050] Furthermore, the length direction of the third connecting hole 202 is parallel to the thickness direction of the support 200, and all the third connecting holes 202 are evenly distributed along the circumferential distance of the support 200.

[0051] The third connecting holes 202 are evenly distributed around the circumference of the support base 200, ensuring a uniform distribution of the fixing force and preventing deformation caused by localized stress concentration. This layout optimizes the mounting hole positions, improves the compatibility of the support base 200 with the external environment, and ensures the balance of the three-wheeled fan-shaped blades during high-speed rotation. Simultaneously, the length direction of the holes is parallel to the thickness direction, facilitating installation and adjustment, ensuring a reliable connection between the support base 200 and the external environment, and improving the overall structural balance and stability.

[0052] For example, the connecting block 300 is made of 45 steel.

[0053] The connecting block 300 is made of 45# steel, which has high strength, hardness, and wear resistance, enabling it to withstand mechanical stress and impact loads during long-term use and preventing deformation or wear. The good machinability of 45# steel facilitates manufacturing and maintenance, extending the service life of the connecting block 300 and ensuring the connection stability between the sector tooth 100 and the support base 200. This reduces failures caused by material issues, lowers replacement frequency, and further reduces maintenance costs and spare parts consumption.

[0054] This utility model also provides a soft box packaging machine, including a mold box, a heater and the aforementioned three-wheeled fan-shaped blades. The mold box is used to place the cigarette pack to be folded, the heater is used to promote the solidification of the material in the cigarette pack, and the three-wheeled fan-shaped blades are used to support the cigarette pack passing between the mold box and the heater.

[0055] This flexible box packaging machine uses a three-wheeled fan-shaped blade with independently replaceable fan teeth 100. This solves the problem of difficulty in repairing and correcting a single deformed fan tooth 100, and the high cost and time-consuming replacement of the entire fan-shaped blade assembly. It reduces maintenance costs and spare parts consumption, significantly shortens replacement and maintenance time, and improves the operating efficiency of the flexible box packaging machine. This design significantly reduces spare parts procurement costs and enhances overall economic efficiency and sustainability.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A three-wheeled fan-shaped blade, characterized in that, include: The support base (200) is arc-shaped, and the outer arc surface of the support base (200) is the top arc surface (201). Multiple sector teeth (100) are evenly distributed around the circumference of the support base (200). Each sector tooth (100) has a root end and a tip end (101) opposite each other in the length direction. The end face of the root end away from the tip end (101) is a root arc surface (102), which is in contact with the top arc surface (201) of the support base. A connecting block (300) is provided on one side of the support base (200). The number of connecting blocks (300) is the same as the number of sector teeth (100). One end of each connecting block (300) is detachably connected to the support base (200), and the other end of each connecting block (300) is detachably connected to the root end of one of the sector teeth (100).

2. The three-wheeled fan-shaped blade according to claim 1, characterized in that, The three-wheeled fan-shaped blade also includes a plurality of first locking components. The connecting block (300) has at least one first connecting hole (301) through it. The fan tooth (100) is provided with tooth connecting holes (103). The number of tooth connecting holes (103) is the same as that of the first connecting holes (301) and they correspond one-to-one. The first locking components connect and fasten the fan tooth (100) and the connecting block (300) through the tooth connecting holes (103) and the first connecting holes (301).

3. The three-wheeled fan-shaped blade according to claim 2, characterized in that, The hole wall of the toothed connecting hole (103) is provided with a first internal thread, the first locking member includes a first bolt, the screw of the first bolt is provided with a first external thread, the first internal thread and the first external thread are threadedly engaged, so that the connecting block (300) is clamped between the screw head of the first bolt and the sector tooth (100).

4. The three-wheeled fan-shaped blade according to claim 1, characterized in that, The three-wheeled fan-shaped plate also includes several second locking components. The connecting block (300) has at least one second connecting hole (302) through it. The support base (200) is provided with a seat connecting hole (203). The number of seat connecting holes (203) and the number of second connecting holes (302) are the same and correspond one-to-one. The second locking components connect and fasten the support base (200) and the connecting block (300) through the seat connecting hole (203) and the second connecting hole (302).

5. The three-wheeled fan-shaped blade according to claim 4, characterized in that, The hole wall of the seat connection hole (203) is provided with a second internal thread, the second locking member includes a second bolt, the screw of the second bolt is provided with a second external thread, the second internal thread and the second external thread are threadedly engaged, so that the connecting block (300) is clamped between the screw head of the second bolt and the support seat (200).

6. The three-wheeled fan-shaped blade according to claim 1, characterized in that, The edges of the connecting block (300) are rounded.

7. The three-wheeled fan-shaped blade according to claim 1, characterized in that, The three-wheeled fan-shaped plate also includes a number of third locking elements, and the support base (200) also includes a third connecting hole (202). The number of third connecting holes (202) is the same as the number of third locking elements. Each third locking element passes through a third connecting hole (202) and is connected to the external environment.

8. The three-wheeled fan-shaped blade according to claim 7, characterized in that, The length direction of the third connecting hole (202) is parallel to the thickness direction of the support (200), and all the third connecting holes (202) are evenly distributed along the circumferential distance of the support (200).

9. The three-wheeled sector blade according to any one of claims 1-8, characterized in that, The connecting block (300) is made of No. 45 steel.

10. A flexible box packaging machine, characterized in that, The device includes a mold, a heater, and a three-wheeled fan-shaped blade as described in any one of claims 1-9, wherein the mold is used to hold a cigarette pack to be folded, the heater is used to promote the solidification of the material in the cigarette pack, and the three-wheeled fan-shaped blade is used to support the cigarette pack passing between the mold and the heater.

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