A filter rod hot pressing and forming device and method

Abstract

The present application discloses a filter rod hot pressing and forming device and method, including a filter rod film covering device, a filter rod pre-positioning device, a material pushing device, and a hot pressing and forming device; wherein, the filter rod film covering device is used for covering the surface of the filter rod to be covered with film and outputting the filter rod after film covering; the filter rod pre-positioning device is used for receiving the filter rod and arranging the filter rod in the filter groove of the material plate; the material pushing device pushes the filter rod in the filter rod pre-positioning device into the hot pressing channel of the hot pressing and forming device, and the hot pressing and forming device performs hot pressing and forming on the filter rod located in the hot pressing channel. The filter rod hot pressing and forming device and method provided by the present application, compared with the prior art, have good forming effect and high efficiency, and can meet the requirements of automated production.

Description

Technical Field

[0001] This application relates to the technical field of cigarette production, and more specifically, to a filter rod hot pressing and forming device and method thereof. Background Art

[0002] The filter tip is an important part of modern cigarette products, which plays roles such as filtering flue gas, reducing tar delivery, and reducing harmful gas components. The filter tip uses two-acetate fiber tow as the filling material to filter particulate matter and harmful components in the flue gas, achieving the purpose of reducing harm. With the development of the industry, filter tip products are constantly innovated. The filter rod in the shape of a duckbill has a unique shape, better comfort in use, and more aesthetic feeling. The duckbill rod is generally formed by first forming the filter rod and then forming the duckbill rod on the basis of the filter rod.

[0003] In the prior art, the filter rod is often placed in the fixture manually, and the filter rod is pressed manually to make the filter rod into a special-shaped filter rod. However, the method of forming the filter rod in the prior art not only has low efficiency, but also has a high rejection rate of the filter rod, and cannot meet the production requirements.

[0004] Therefore, there is an urgent need for a filter rod hot pressing and forming device and method thereof, which have good forming effect, high efficiency, and can meet the requirements of automated production. Summary of the Invention

[0005] To solve the above technical problems, this application provides a filter rod hot pressing and forming device and method thereof, which have good forming effect, high efficiency, and can meet the requirements of automated production.

[0006] The technical solutions provided by this application are as follows:

[0007] A filter rod hot pressing and forming device includes a filter rod film covering device, a filter rod pre-positioning device, a pushing device, and a hot pressing and forming device;

[0008] Among them,

[0009] The filter rod film covering device is used to cover the surface of the filter rod to be covered with film and output the filter rod after covering with film;

[0010] The filter rod pre-positioning device is used to receive the filter rod and arrange the filter rod in the material groove of the material plate;

[0011] The pushing device pushes the filter rod in the filter rod pre-positioning device into the hot pressing channel of the hot pressing and forming device, and the hot pressing and forming device performs hot pressing and forming on the filter rod located in the hot pressing channel.

[0012] Preferably, the filter rod film covering device includes:

[0013] A first mounting seat, on which a receiving chamber is provided;

[0014] A film covering seat received in the accommodation chamber, a hollow filter rod chamber is axially provided on the film covering seat, and an annular sealant chamber is formed between the circumferential direction of the film covering seat and the inner wall of the accommodation chamber;

[0015] A glue inlet arranged on the first mounting seat and communicating with the sealant chamber;

[0016] A glue injection assembly communicating the sealant chamber with the filter rod chamber.

[0017] Preferably, the filter rod film covering device further includes:

[0018] A cloth belt conveying mechanism for driving the filter rod to be film covered to move in the filter rod chamber.

[0019] Preferably, it further includes a drying device;

[0020] The drying device is arranged between the filter rod film covering device and the filter rod pre-positioning device, and the drying device is used for drying the filter rod.

[0021] Preferably, the filter rod pre-positioning device includes a material box, a baffle and a power assembly;

[0022] Wherein,

[0023] The material box is arranged above the material plate, and an outlet part communicating with the material groove is arranged at the bottom of the material box;

[0024] The baffle is arranged between the material box and the material plate, and a blocking part and a passing part used in cooperation with the material groove are arranged on the baffle;

[0025] The power assembly drives the baffle to reciprocate radially along the material groove, so that the baffle has a first state and a second state. When the baffle is in the first state, the filter rod passes through the outlet part and the passing part and enters the material groove.

[0026] Preferably, the filter rod pre-positioning device further includes a diversion member;

[0027] The diversion member is arranged at the outlet part, at least two diversion members are provided, and the diversion members are arranged at intervals radially along the material groove, and the distance between adjacent diversion members is not less than the width of the passing part.

[0028] Preferably, the filter rod pre-positioning device further includes a fixing frame, a guide rod and a vibration box assembly;

[0029] Two groups of fixing frames are provided, and the two groups of fixing frames are respectively arranged on both sides of the material box;

[0030] The guiding rod is arranged along the radial direction of the material chute, and both ends of the guiding rod are respectively connected to the fixed frame, and the guiding rod is movably connected to the material box;

[0031] The vibrating box assembly is connected to the material box and drives the material box to reciprocate along the axial direction of the guiding rod.

[0032] Preferably, the pushing device includes a push rod, a push rod seat, a first guiding mechanism and a pushing power component;

[0033] Among them,

[0034] The push rod is arranged at one end of the material chute far away from the hot pressing and forming device, the push rod is connected to the push rod seat, the pushing power component is connected to the push rod seat, the first guiding mechanism is used to limit and constrain the movement of the push rod seat along the axial direction of the material chute, and the pushing power component drives the push rod seat to move so that the push rod pushes the filter rod to move.

[0035] Preferably, the hot pressing and forming device includes a second mounting seat and a hot pressing module;

[0036] Among them,

[0037] The hot pressing channel is arranged in the second mounting seat, and a hollow area communicated with the hot pressing channel is arranged on the second mounting seat;

[0038] The hot pressing module is arranged outside the second mounting seat. The hot pressing module includes a template and a driving component. A forming part protruding towards the hollow area is arranged on the template. The forming part is arranged opposite to the hollow area, and the telescopic end of the driving component is connected to the template to drive the forming part to pass through the hollow area and enter the hot pressing channel.

[0039] Preferably, the hot pressing and forming device further includes a second mounting plate and a positioning rod;

[0040] There are two groups of the second mounting plates, and the two groups of the second mounting plates are respectively arranged on both sides of the second mounting seat. The positioning rod is arranged at one end of the hot pressing channel, and both ends of the positioning rod are respectively movably connected to the second mounting plates.

[0041] Preferably, the hot pressing and forming device further includes a sliding groove, a positioning block and a lifting rod assembly;

[0042] The sliding groove is arranged on the second mounting plate, and the sliding groove is slidably connected to the positioning rod;

[0043] There are two positioning blocks, and the two positioning blocks are respectively arranged outside the sliding groove to limit and constrain the axial displacement of the positioning rod;

[0044] The lifting rod assembly is connected to the positioning block and drives the positioning rod to move along the sliding groove to adjust the height of the positioning rod.

[0045] Preferably, it further includes a collection device and a conveying device;

[0046] Wherein, the collection device is arranged at one end of the hot pressing and forming device away from the pushing device, and the conveying device is used to drive the collection device to move.

[0047] Preferably, the collection device includes an aggregate member and a collection tank;

[0048] The collection tank is arranged on the aggregate member. The collection tank is used for placing filter rods. There are a plurality of collection tanks, and one collection tank is communicated with one hot pressing channel. The pushing device can push the filter rods in the hot pressing channel into the collection tank.

[0049] A method of applying the hot pressing and forming device according to any one of the above, including the following steps:

[0050] S1. The filter rod film covering device covers the outer surface of the filter rod to be film covered and outputs the filter rod after film covering;

[0051] S2. The filter rod pre-positioning device receives the filter rod after film covering and arranges the filter rod in the material groove on the material plate;

[0052] S3. The pushing device is started to push the filter rods in the material groove into the hot pressing channel of the hot pressing and forming device;

[0053] S4. The hot pressing and forming device is started to perform hot pressing and forming on the filter rods in the hot pressing channel.

[0054] Preferably, it further includes a cloth belt feeding device for pulling the filter rods to move in the filter rod film covering device. Wherein, the moving speed of the filter rods in the filter rod film covering device is greater than 20 m / min and less than 40 m / min.

[0055] Preferably, a drying device is further arranged between the filter rod film covering device and the filter rod pre-positioning device;

[0056] The drying device is used to spray cold drying gas on the filter rods to dry the filter rods after film covering. The temperature of the cold drying gas is between 5°C and 10°C.

[0057] Preferably, the filter rod film covering device includes:

[0058] A first mounting seat, on which a receiving chamber is arranged;

[0059] A film covering seat housed in the accommodation chamber, a hollow filter rod cavity is axially provided in the film covering seat, and an annular sealant cavity is formed between the circumferential direction of the film covering seat and the inner wall of the accommodation chamber;

[0060] A glue inlet arranged on the first mounting seat and communicating with the sealant cavity;

[0061] A glue injection assembly communicating the sealant cavity with the filter rod cavity;

[0062] Wherein, the flow rate of the glue injected into the filter rod cavity by the glue injection assembly is 40 ml / min to 80 ml / min.

[0063] Preferably, the hot pressing and forming device includes a second mounting seat and a hot pressing module;

[0064] Wherein, a hot pressing channel is arranged in the second mounting seat, and a hollow area communicating with the hot pressing channel is arranged on the second mounting seat;

[0065] The hot pressing module is arranged outside the second mounting seat. The hot pressing module includes a template and a driving member. A forming portion protruding towards the hollow area is arranged on the template. The forming portion is arranged opposite to the hollow area. The telescopic end of the driving member is connected to the template to drive the forming portion to pass through the hollow area and enter the hot pressing channel;

[0066] The time when the forming portion acts on the surface of the filter rod is greater than 4 s and less than 6 s.

[0067] Preferably, the hot pressing and forming device further includes a heating member and a temperature sensor;

[0068] The heating member is arranged on the template. The temperature sensor is connected to the heating member, and the temperature sensor is used to obtain the real-time temperature of the template;

[0069] In step S4, before hot pressing and forming the filter rod in the hot pressing channel, the template is preheated by the heating member. The preheating time of the heating member is 4 s to 10 s, so that the temperature of the template is 90 °C to 105 °C.

[0070] Preferably, the hot pressing and forming device further includes a positioning assembly. The positioning assembly is used to limit and constrain the axial position of the filter rod in the hot pressing channel. After hot pressing and forming, the positioning assembly moves away, and the pushing device pushes the filter rod out of the hot pressing and forming device.

[0071] The filter rod hot pressing and forming equipment provided by the present invention, first of all, is provided with a filter rod film covering device, a filter rod pre-positioning device, a material pushing device and a hot pressing and forming device. Among them, the filter rod film covering device is used to coat and cover the filter rod to be covered with film, form a protective film on the surface of the filter rod to shape the filter rod, and the filter rod film covering device outputs the filter rod after film covering. The filter rod pre-positioning device receives the filter rod and arranges the filter rods in the material grooves of the material plate in sequence. The material pushing device is used to push the filter rods in the material grooves into the hot pressing channel of the hot pressing and forming device, and the hot pressing and forming device performs hot pressing and forming on the filter rods. By performing film covering, pre-positioning and sorting, material pushing and hot pressing and forming on the filter rods, the process of automatic production of filter rods is realized, and the efficiency is higher. It can be seen that, compared with the prior art, the filter rod hot pressing and forming equipment in the embodiment of the present invention has good forming effect and high efficiency, and can meet the requirements of automatic production.

[0072] The present invention also provides a method for hot pressing and forming by using the filter rod hot pressing and forming equipment. The outer surface of the filter rod to be covered with film is covered with film by the filter rod film covering device, and the filter rod after film covering is output; the filter rod pre-positioning device receives the filter rod after film covering and arranges the filter rods in the material grooves on the material plate;

[0073] The material pushing device is started to push the filter rods in the material grooves into the hot pressing channel of the hot pressing and forming device; the hot pressing and forming device is started to perform hot pressing and forming on the filter rods in the hot pressing channel. Similarly, the technical effects of good forming effect, high efficiency and meeting the requirements of automatic production can be achieved. Description of the Drawings

[0074] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0075] Figure 1 It is a structural diagram of the filter rod hot pressing and forming equipment provided by the embodiment of the present invention from the first perspective;

[0076] Figure 2 It is a structural diagram of the filter rod hot pressing and forming equipment provided by the embodiment of the present invention from the second perspective;

[0077] Figure 3 It is a structural diagram of the filter rod hot pressing and forming equipment provided by the embodiment of the present invention from the third perspective;

[0078] Figure 4 It is a cross-sectional view of the filter rod hot pressing and forming equipment provided by the embodiment of the present invention;

[0079] Figure 5 It is a schematic structural diagram of a filter rod film covering device provided by an embodiment of the present invention;

[0080] Figure 6 is Figure 5 the external structural diagram of;

[0081] Figure 7 is Figure 5 the exploded view of;

[0082] Figure 8 is Figure 6 the sectional view of;

[0083] Figure 9 is Figure 6 the sectional view from another perspective of;

[0084] Figure 10 It is a schematic structural diagram of a mounting seat provided by an embodiment of the present invention;

[0085] Figure 11 It is a schematic structural diagram of a film covering seat provided by an embodiment of the present invention;

[0086] Figure 12 It is a schematic structural diagram of a feed box provided by an embodiment of the present invention;

[0087] Figure 13 is Figure 12 the partial structural diagram in;

[0088] Figure 14 is Figure 13 the exploded view of;

[0089] Figure 15 It is a schematic structural diagram of a second power member provided by an embodiment of the present invention;

[0090] Figure 16 It is a schematic structural diagram of a feed plate provided by an embodiment of the present invention;

[0091] Figure 17 is Figure 15 the structural decomposition diagram of;

[0092] Figure 18 It is a schematic structural diagram of a baffle provided by an embodiment of the present invention;

[0093] Figure 19 It is a schematic structural diagram of a bottom plate provided by an embodiment of the present invention;

[0094] Figure 20 It is a schematic structural diagram of a material pushing device provided by an embodiment of the present invention;

[0095] Figure 21A cross-sectional view of the filter rod hot pressing and forming device provided by the embodiment of the present invention;

[0096] Figure 22 A schematic structural view of the mounting base provided by the embodiment of the present invention from the first perspective;

[0097] Figure 23 A schematic structural view of the mounting base from the second perspective;

[0098] Figure 24 A cross-sectional view of the mounting base;

[0099] Figure 25 A schematic structural view of the hot pressing module provided by the embodiment of the present invention;

[0100] Figure 26 A schematic structural view of the template provided by the embodiment of the present invention;

[0101] Figure 27 A schematic structural view of the positioning component provided by the embodiment of the present invention;

[0102] Figure 28 A partially enlarged view of the positioning component provided by the embodiment of the present invention;

[0103] Figure 29 A schematic structural view of the formed filter rod provided by the embodiment of the present invention;

[0104] Figure 30 A schematic structural view of the filter tip provided by the embodiment of the present invention;

[0105] Figure 31 A flowchart of the method for applying the filter rod hot pressing and forming equipment provided by the embodiment of the present invention.

[0106] Reference numerals:

[0107] 1. Filter rod film coating device; 2. Filter rod pre-positioning device; 3. Pushing device; 4. Hot pressing and forming device; 5. Collection device; 6. Conveying device; 7. Formed filter rod; 8. Filter tip

[0108] 11. First mounting base; 111. Accommodation chamber; 112. Block; 113. Bottom plate; 12. Film coating base; 13. Filter rod cavity; 14. Sealant cavity; 15. Glue inlet; 16. Glue injection assembly; 17. Exhaust port; 18. Locking structure; 19. Seal ring; 161. Glue inlet part; 162. Glue outlet part; 121. Limiting part; 122. Glue injection part; 123. Fixing part; 124. Ring groove; 125. End cover

[0109] 21. Material box; 22. Baffle; 23. Material plate; 24. Power assembly; 25. Flow guide; 26. Fixed frame; 27. Guide rod; 28. Vibration box assembly; 221. Blocking part; 222. Passing part; 231. Material groove; 241. First power part; 242. Pushing plate; 243. First elastic reset part; 251. Shunt pushing plate; 252. Flow guide rod; 271. Connecting part; 261. First mounting part; 262. Second mounting part; 263. Third mounting part; 281. Second power part; 282. Crankshaft; 283. Driving plate; 284. Driving groove; 2841. First plane; 2842. Second plane; 285. First mounting plate; 291. Bottom plate; 292. Tank body; 293. Limit block; 294. Limit groove;

[0110] 31. Push rod; 32. Push rod seat; 33. First guiding mechanism; 34. Pushing material power part;

[0111] 41. Second mounting seat; 42. Positioning assembly; 43. Hot pressing module; 411. Hot pressing channel; 412. Hollow area; 431. Template; 432. Driving part; 433. Forming part; 434. Second guiding mechanism; 4341. Support seat; 4342. Guide rod; 435. Second elastic reset part; 436. Heating part; 437. Temperature sensor; 421. Second mounting plate; 422. Positioning rod; 423. Sliding groove; 424. Positioning block; 425. Lifting rod assembly;

[0112] 51. Aggregating part; 52. Collection tank. Detailed implementation mode

[0113] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0114] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0115] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.

[0116] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" and "several" mean two or more, unless otherwise specifically defined.

[0117] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present application. Therefore, they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the efficacy that the present application can produce and the purpose that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present application.

[0118] The embodiments of the present invention are written in a progressive manner.

[0119] As shown in the drawings, an embodiment of the present invention provides a filter rod hot pressing and forming device, including a filter rod film covering device 1, a filter rod pre-positioning device 2, a material pushing device 3, and a hot pressing and forming device 4; wherein, the filter rod film covering device 1 is used for covering the surface of the filter rod to be covered with film and outputting the filter rod after covering the film; the filter rod pre-positioning device 2 is used for receiving the filter rod and arranging the filter rod in the material groove 231 of the material plate 23; the material pushing device 3 pushes the filter rod in the filter rod pre-positioning device 2 into the hot pressing channel 411 of the hot pressing and forming device 4, and the hot pressing and forming device 4 performs hot pressing and forming on the filter rod located in the hot pressing channel 411.

[0120] The filter rod hot pressing and forming equipment provided by the present invention, first of all, is provided with a filter rod film covering device, a filter rod pre-positioning device, a material pushing device and a hot pressing and forming device. Among them, the filter rod film covering device is used to apply glue and cover the filter rod to be covered with film, forming a protective film on the surface of the filter rod to shape the filter rod. The filter rod film covering device outputs the filter rod after covering the film. The filter rod pre-positioning device receives the filter rod and arranges the filter rods in the material grooves 231 of the material plate in sequence. The material pushing device is used to push the filter rods in the material grooves 231 into the hot pressing channel of the hot pressing and forming device, and the hot pressing and forming device performs hot pressing and forming on the filter rods. By covering the film, pre-positioning and sorting, pushing the material and hot pressing and forming the filter rods, the process of automatic production of the filter rods is realized, and the efficiency is higher. Thus, compared with the prior art, the filter rod hot pressing and forming equipment in the embodiment of the present invention has good forming effect and high efficiency, and can meet the requirements of automatic production.

[0121] Please as Figures 6 to 11 As shown in the figure, the filter rod film covering device 1 provided by the present invention, first of all, is provided with a first mounting seat 11 and a film covering seat 12. Among them, a receiving cavity 111 is provided on the first mounting seat 11, the film covering seat 12 is received in the receiving cavity 111, a hollow filter rod cavity 13 is arranged on the film covering seat 12 along the axial direction, and the filter rod cavity 13 is used to place the filter rod. The filter rod moves along the axial direction of the filter rod cavity 13 under the action of traction force. A ring-shaped sealant cavity 14 is formed between the outer wall of the film covering seat 12 and the inner wall of the receiving cavity 111. Secondly, a glue inlet 15 and a glue injection assembly 16 are also provided. Among them, the glue inlet 15 is arranged on the first mounting seat 11, and the glue inlet 15 is communicated with the sealant cavity 14 for injecting glue into the sealant cavity 14 so that the glue fills the sealant cavity 14. The glue injection assembly 16 is used to communicate the sealant cavity 14 and the filter rod cavity 13. The glue in the sealant cavity 14 coats the filter rod in the filter rod cavity 13 with glue and covers the film. After drying, the filter rod after covering the film can form a protective film on its outer surface. Thus, compared with the prior art, the filter rod film covering device in the embodiment of the present invention can cover the film on the outer surface of the preformed filter rod, and after drying, the filter rod after covering the film can form a protective film on its outer surface, which is suitable for various filter rods with special shapes for hot pressing and forming.

[0122] The filter rod film covering device 1 in the embodiment of the present invention coats the filter rod with glue on the surface of the filter rod. After drying, the filter rod after coating with glue can form a protective film on the outer surface of the filter rod, so as to perform hot pressing and forming on it in the subsequent process. The protective film has good airtightness and thermoplasticity, and can undergo extension deformation along with the hot pressing of the filter rod. It is suitable for various filter rods with special shapes for hot pressing and forming, thereby reducing the defective rate in hot pressing and forming.

[0123] In the above structure, as a more preferred embodiment, there are at least two glue injection assemblies 16 in the embodiment of the present invention, and the glue injection assemblies 16 are arranged at intervals along the axial direction of the filter rod cavity 13. By arranging multiple groups of glue injection assemblies 16, it is ensured that when the filter rod moves in the filter rod cavity 13, the glue in the sealant cavity 14 can evenly coat the filter rod axially through the glue injection assemblies 16. The number of the glue injection assemblies 16 is selected according to the moving speed of the filter rod and the injection efficiency of the glue injection assemblies 16 during actual use.

[0124] In the above structure, as a more preferred embodiment, the adjacent glue injection assemblies 16 in the embodiment of the present invention are arranged staggeredly. With this arrangement, the glue on the filter rod is coated more evenly.

[0125] In the above structure, in order to ensure that the entire circumference of the filter rod can be coated, as a more preferred embodiment, the glue injection assembly 16 in the embodiment of the present invention includes a glue injection channel, and there are at least three glue injection channels, and the glue injection channels are evenly spaced around the circumference of the filter rod cavity 13. By arranging multiple groups of glue injection channels in the circumferential direction of the filter rod, the glue can be completely coated on the circumference of the filter rod.

[0126] Furthermore, the number of the glue injection channels in the embodiment of the present invention is any one of 8, 12, or 24, and the multiple glue injection channels in a group of glue injection assemblies 16 are evenly spaced around the circumference of the filter rod cavity 13. The filter rod in the filter rod cavity 13 is coated and film-covered through the multiple glue injection channels. Since the glue injection channels are evenly distributed in the circumferential direction of the filter rod cavity 13, the filter rod passing through the filter rod cavity 13 can be evenly coated, and the coating effect is better.

[0127] Furthermore, a group of glue injection channels encloses a complete circle and is evenly arranged circumferentially around the center of the circle. When the number of the glue injection channels is 8, the angle between adjacent glue injection channels in a group and the center of the circle is 45°; when the number of the glue injection channels in a group of glue injection assemblies 16 is 12, the angle between adjacent glue injection channels in a group and the center of the circle is 30°; when the number of the glue injection channels in a group of glue injection assemblies 16 is 24, the angle between adjacent glue injection channels in a group and the center of the circle is 15°.

[0128] In the above structure, as a more preferred embodiment, the glue injection channel in the embodiment of the present invention includes a glue inlet portion 161 and a glue outlet portion. Among them, the glue inlet portion 161 is communicated with the sealant cavity 14, and the glue outlet portion 162 is used to communicate the glue inlet portion 161 with the filter rod cavity 13, and the inlet aperture of the glue inlet portion 161 is larger than the outlet aperture of the glue outlet portion 162. The larger inlet aperture of the glue inlet portion 161 is convenient for introducing the glue material in the sealant cavity 14. The smaller outlet aperture of the glue outlet portion 162 can better act on the filter rod in the filter rod cavity 13 to prevent excessive glue from being discharged and causing blockage of the filter rod cavity 13. The filter rod moves in the filter rod cavity 13 under the action of traction force, and the filter rod is coated with glue simultaneously through the glue injection assembly 16, so that the glue material is evenly coated on the outer surface of the filter rod to form a glue layer, and the glue layer forms a film after drying.

[0129] In the above structure, as a more preferred embodiment, the filter rod film coating device in the embodiment of the present invention further includes an exhaust port 17. Among them, the exhaust port 17 is arranged on the top of the first mounting seat 11, and the exhaust port 17 is communicated with the sealant cavity 14, and is used for exhausting the redundant gas in the sealant cavity 14, so that the filter rod can be coated with glue more evenly.

[0130] In the above structure, as a more preferred embodiment, the glue inlet 15 in the embodiment of the present invention is arranged at the bottom of the first mounting seat 11.

[0131] In the above structure, as a more preferred embodiment, the film coating seat 12 in the embodiment of the present invention includes a limiting portion 121, a glue injection portion 122, and a fixing portion 123 arranged in sequence from front to back along the axial direction of the filter rod cavity 13. On the outer surfaces of the limiting portion 121 and the fixing portion 123, there are annular grooves 124 for installing the sealing ring 19. The film coating seat 12 is placed in the accommodation chamber 111, and a sealant cavity 14 is formed between the outer wall of the glue injection portion 122 and the inner wall of the accommodation chamber 111. The glue injection assembly 16 is arranged on the glue injection portion 122 and communicates the filter rod cavity 13 and the sealant cavity 14. By using the sealing ring 19 on the outer sides of the limiting portion 121 and the fixing portion 123 in cooperation with the first mounting seat 11, the airtightness of the sealant cavity 14 is further strengthened, the situation of glue leakage is avoided, and better glue coating and film coating can be carried out.

[0132] Furthermore, the limiting portion 121, the glue injection portion 122, and the fixing portion 123 in the embodiment of the present invention are integrally formed structures.

[0133] Furthermore, the shape of the film covering seat 12 in the embodiment of the present invention is adapted to the shape of the accommodating chamber 111. The limiting portion 121 and the fixing portion 123 are hermetically connected to both ends of the accommodating chamber 111 through a sealing ring 19, and a sealing glue cavity 14 is formed between the glue injection portion 122 and the inner wall of the accommodating chamber 111. Further, the accommodating chamber 111 in the embodiment of the present invention is a cylindrical chamber. Correspondingly, the axial cross-sectional dimension of the film covering in the embodiment of the present invention is an annular shape. The outer diameters of the limiting portion 121 and the fixing portion 123 are the same and are adapted to the inner diameter of the accommodating chamber 111. The outer diameter of the glue injection portion 122 is smaller than the outer diameter of the limiting portion 121.

[0134] In the above structure, as a more preferable implementation manner, a stopper 112 for cooperating with the limiting portion 121 is further provided in the accommodating chamber 111 of the embodiment of the present invention. The film covering seat 12 is placed in the accommodating chamber 111, and the front end of the limiting portion 121 abuts against the stopper 112 to limit and constrain the position of the limiting portion 121.

[0135] In the above structure, as a more preferable implementation manner, the filter rod film covering device in the embodiment of the present invention further includes an end cover 125 and a locking structure 18. Among them, the end cover 125 is connected to the rear end of the fixing portion 123. The end cover 125 is disposed outside the accommodating chamber 111, and the end cover 125 and the first mounting seat 11 are fixed through the locking structure 18.

[0136] In the above structure, as a more preferable implementation manner, the bottom surface of the end cover 125 in the embodiment of the present invention is a plane, and a bottom plate 113 for supporting the end cover 125 is provided on the first mounting seat 11.

[0137] In this embodiment, the end cover 125 and the first mounting seat 11 are fixedly connected by threads, and mounting holes for installing bolts are provided on the end cover 125 and the first mounting seat 11.

[0138] In the above structure, as a more preferable implementation manner, the limiting portion 121, the glue injection portion 122, the fixing portion 123, and the end cover 125 in the embodiment of the present invention are an integrally formed structure.

[0139] In the above structure, as a more preferable implementation manner, the filter rod film covering device in the embodiment of the present invention further includes a cloth belt conveying device (not shown in the figure). The cloth belt conveying device is used to drive the filter rod to move in the filter rod cavity, input the filter rod to be film covered into the filter rod cavity through the cloth belt conveying device, drive the filter rod to move in the film covering cavity, and output the filter rod from the filter rod cavity through the cloth belt conveying device after the film covering is completed.

[0140] In the above structure, as a more preferred embodiment, the filter rod hot pressing and forming device in the embodiments of the present invention further includes a drying device, which is arranged between the filter rod film covering device 1 and the filter rod pre-positioning device 2. The drying device is used to dry the filter rod, facilitating the faster drying and film formation of the adhesive on the outer surface of the filter rod.

[0141] Please refer to Figure 12 Figure 19 As shown, the filter rod pre-positioning device 2 provided by the present invention is first provided with a material box 21, a baffle 22 and a material plate 23. Among them, a material groove 231 is arranged on the material plate 23, and the material groove 231 is used to place the filter rod. The material groove 231 extends along the axial direction of the filter rod. The filter rod is pre-positioned through the material groove 231. The material box 21 is arranged above the material plate 23, and an outlet part communicated with the material groove 231 is arranged at the bottom of the material box 21. The baffle 22 is arranged between the material box 21 and the material groove 231, and a passing part 222 is arranged on the baffle 22. The passing part 222 is used in cooperation with the material groove 231. When the passing part 222 is located directly above the material groove 231, the filter rod in the material box 21 can enter the material groove 231 through the outlet part and the passing part 222, realizing the pre-positioning of the filter rod. In order to prevent the filter rod from accumulating in the material groove 231, a blocking part 221 and a power assembly 24 are also arranged. Among them, the blocking part 221 is used in cooperation with the material groove 231, and the power assembly 24 is connected to the baffle 22, driving the baffle 22 to reciprocate in the radial direction of the material groove 231, so that the baffle 22 has a first state and a second state. When the baffle 22 moves to the first state, the filter rod in the material box 21 can enter the material groove 231 through the outlet part and the passing part 222, realizing the pre-positioning of the filter rod. When the baffle 22 moves to the second state, the filter rod is located above the blocking part 221 and cannot enter the material groove 231, preventing the accumulation of the filter rod. Thus, compared with the prior art, the filter rod pre-positioning device in the embodiments of the present invention is simple to operate and can realize the pre-positioning of the filter rod without manual cooperation, with higher efficiency.

[0142] More specifically, in order to ensure that the filter rod can enter the material groove 231 from the passing part 222, the size of the passing part 222 in the embodiments of the present invention is larger than the diameter of the filter rod. Further, when the baffle 22 moves to the first state, at the same position, the projected width of the overlapping area of the passing part 222 of the baffle 22 and the material groove 231 on the material plate 23 is larger than the diameter of the filter rod, that is, the filter rod in the material box 21 can pass through the outlet part and the passing part 222 and enter the material groove 231. When the baffle 22 moves to the second state, at the same position, the projected width of the area where the blocking part 221 of the baffle 22 does not cover the material groove 231 on the material plate 23 is smaller than the diameter of the filter rod, and the filter rod is located above the blocking part 221 and will not enter the material groove 231, thereby preventing the accumulation of the filter rod.

[0143] Furthermore, multiple groups of material troughs 231 are provided in the embodiments of the present invention, and the material troughs 231 are uniformly arranged along the radial direction thereof on the material plate 23. Correspondingly, multiple groups of passing parts 222 and blocking parts 221 on the baffle 22 are also correspondingly provided, and the passing parts 222 and the blocking parts 221 are arranged adjacent to each other in sequence to achieve simultaneous positioning of multiple groups of filter rods.

[0144] Furthermore, the power assembly 24 in the embodiments of the present invention includes a first power member 241 and a push plate 242; wherein, the push plate 242 is arranged on the baffle 22; the telescopic end of the first power member 241 cooperates with the push plate 242 to drive the push plate 242 to move in the first direction, so that the baffle 22 is switched from the first state to the second state. When the baffle 22 is in the first state, the filter rods in the material box 21 can enter the material trough 231 through the outlet part and the passing part 222 for pre-positioning. When the telescopic rod of the first power member 241 is pushed out and acts on the push plate 242, the baffle 22 is pushed to move in the first direction so that the baffle 22 is switched from the first state to the second state. When the baffle 22 is in the second state, it prevents the filter rods from entering the material trough 231 and prevents the filter rods from accumulating in the material trough 231.

[0145] In the above structure, the telescopic end of the first power member 241 in the embodiments of the present invention is connected to the push plate 242, and the baffle 22 is driven to reciprocate by the telescopic end of the first power member 241.

[0146] In another implementation manner, the telescopic end of the first power member 241 in the embodiments of the present invention abuts against the push plate 242, and the push plate 242 is driven to move in the first direction by the first power member 241. To facilitate the reset of the baffle 22, the power assembly 24 in the embodiments of the present invention further includes a first elastic reset member 243; the first elastic reset member 243 is connected to the baffle 22 and is used to provide a first restoring force for the baffle 22 through its own elastic force, so that the baffle 22 is restored to the first state along the second direction; wherein, the second direction is opposite to the first direction. When the telescopic end of the first power member 241 retracts, the first elastic reset member 243 provides a first restoring force for the baffle through its own elastic force, so that the baffle 22 is restored to the first state along the second direction. More specifically, the first elastic reset member 243 in the embodiments of the present invention is specifically a reset spring.

[0147] In the above structure, the filter rod pre-positioning device in the embodiment of the present invention further includes a flow guiding member 25. Among them, the flow guiding member 25 is arranged at the outlet portion, at least one group of flow guiding members 25 is provided, and one group of flow guiding members 25 is arranged at intervals in the radial direction of the material trough 231, and the distance between adjacent flow guiding members 25 is not less than the width of the passing portion 222. If N groups of flow guiding members 25 are provided (N is greater than or equal to 1 and N is a natural number), and the N groups of flow guiding members 25 are distributed in the radial direction of the material trough 231, the outlet portion is divided into N + 1 outlet areas, and the filter rods are shunted by the flow guiding member 25 to prevent uneven distribution of the filter rods at the outlet portion.

[0148] In the above structure, the flow guiding member 25 in the embodiment of the present invention includes a shunting cone plate 251 and a flow guiding rod 252. The shunting cone plate 251 is arranged in the middle of the outlet portion, and multiple flow guiding rods 252 are provided. The multiple flow guiding rods 252 are respectively arranged on both sides of the shunting cone plate 251. Specifically, the shunting cone plate 251 is a conical structure, and the filter rods in the material box 21 are shunted to both sides through the conical structure. The flow guiding rods 252 are arranged on both sides of the shunting cone plate 251, and the flow guiding rods 252 are evenly arranged between the shunting cone plate 251 and the material box 21, so that the filter rods can be evenly distributed in the material box 21. More specifically, the flow guiding rod 252 in the embodiment of the present invention is a cylindrical flow guiding rod, and the flow guiding rod 252 is arranged along the axis direction of the filter rod.

[0149] In the above structure, as a more preferred embodiment, the filter rod pre-positioning device in the embodiment of the present invention further includes a fixing frame 26, a guiding rod 27 and a vibrating box assembly 28. Two groups of fixing frames 26 are provided, and the two groups of fixing frames 26 are respectively arranged on both sides of the material box 21. The guiding rod 27 is arranged in the radial direction of the material trough 231, and both ends of the guiding rod 27 are connected to the fixing frame 26 respectively. The guiding rod 27 is movably connected to the material box 21. The vibrating box assembly is connected to the material box 21 and drives the material box 21 to reciprocate along the axis direction of the guiding rod 27.

[0150] More specifically, a first mounting portion 261 for mounting the guiding rod 27 is arranged on the fixing frame 26 in the embodiment of the present invention. The first mounting portion 261 and the guiding rod 27 are connected through a connecting member 271. Two groups of guiding rods 27 are provided, and the two groups of guiding rods 27 are symmetrically arranged on both sides of the material trough 231. The vibrating box assembly 28 drives the material box 21 to reciprocate in the radial direction of the material trough 231, playing a role in vibrating and distributing materials.

[0151] In the above structure, as a more preferred embodiment, the vibration box assembly 28 in the embodiment of the present invention includes a second power member 281, a crankshaft 282, a drive plate 283, and a drive groove 284; the drive plate 283 is fixedly connected to the material box 21, the drive groove 284 is arranged on the drive plate 283, the output shaft of the second power member 281 is connected to the crankshaft 282, the eccentric end of the crankshaft 282 is movably connected to the drive groove 284, the second power member 281 drives the crankshaft 282 to rotate around the output shaft, when the eccentric end of the crankshaft 282 rotates to contact the first plane 2841 of the drive groove 284, it drives the material box 21 to move along the first direction on the guide rod 27, when the eccentric end of the crankshaft 282 rotates to contact the second plane 2842 of the drive groove 284, it drives the material box 21 to move along the second direction on the guide rod 27; wherein, the first direction and the second direction are opposite directions.

[0152] Furthermore, the vibration box assembly in the embodiment of the present invention further includes a first mounting plate 285; the first mounting plate 285 is connected to the fixed end of the second power member 281, and the first mounting plate 285 is connected to the fixed frame 26 for fixing the fixed end of the second power member 281 to the fixed frame 26. A second mounting portion 262 is provided on the fixed frame 26, and the second mounting portion 262 and the first mounting plate 285 are connected by bolts. More specifically, a third mounting portion 263 is provided on the fixed frame 26, and the third mounting portion 263 is used to mount the first power member 241, and the overall structure is more compact and reasonable.

[0153] As a more preferred embodiment, the present invention embodiment further includes a bottom plate 291, a groove body 292, a limiting block 293, and a limiting groove 294; the bottom plate 291 is arranged at the bottom of the material box, and a groove body 292 for receiving the baffle plate 22 is provided at the bottom of the bottom plate 291; the limiting block 293 is arranged in the groove body 292 and extends from the bottom plate 291 towards the material plate 23; the limiting groove 294 is arranged on the baffle plate 22 and is used in cooperation with the limiting block 293 to limit and constrain the movement of the baffle plate 22 in the groove body 292. When the baffle plate 22 slides in the groove body 292, the cooperation of the limiting groove 294 and the limiting block 293 can prevent the baffle plate 22 from sliding out of the outside of the bottom plate 291.

[0154] Please as Figure 20As shown, the pusher device 3 in the embodiment of the present invention includes a push rod 31, a push rod seat 32, a first guide mechanism 33 and a pusher power member 34; wherein, the push rod 31 is arranged at one end of the material trough 231 away from the hot pressing molding device 4, the push rod 31 is connected to the push rod seat 32, the pusher power member 34 is connected to the push rod seat 32, the first guide mechanism 33 is used to limit and constrain the push rod seat 32 to move along the axial direction of the material trough 231, and the pusher power member 34 drives the push rod seat 32 to move, so that the pusher 31 pushes the filter rod to move. More specifically, the pusher 31 is arranged in the material trough 231, and the filter rod is arranged in the material trough through the filter rod and the positioning device 2. The pusher power member 34 acts on the pusher seat 32, driving the push rods 31 in multiple material troughs to work together, and pushing the filter rod to be pushed synchronously in the direction of the hot pressing channel, which is more efficient.

[0155] Please Figures 21 to 28 As shown, the hot pressing molding device 44 provided by the present invention is firstly provided with a second mounting seat 41, a positioning component 42 and a hot pressing module 43, wherein a hot pressing channel 411 is provided in the second mounting seat 41, and the hot pressing channel 411 is used to place a filter rod, and a hollow area 412 is provided on the second mounting seat 41, and the hollow area 412 is connected to the hot pressing channel 411, and the positioning component 42 is used to position the filter rod and limit the axial position of the filter rod in the hot pressing channel 411, and the hot pressing module 43 is arranged on the outer side of the second mounting seat 41, and the filter rod enters the hot pressing channel 411, and is positioned by the positioning component 42, and the hot pressing module 43 enters the hot pressing channel 411 through the hot pressing area, and the filter rod is hot pressed and molded, which is simple to operate, high in efficiency, and good in molding effect. Secondly, the hot pressing module 43 includes a template 431 and a driving member 432, wherein the template 431 is provided with a forming portion 433 protruding toward the hollow area 412, the forming portion 433 is arranged corresponding to the hollow area 412, and the telescopic end of the driving member 432 is connected to the template 431, driving the forming portion 433 to pass through the hot pressing area into the hot pressing channel 411, and hot pressing the aluminum rod filter rod. It can be seen that compared with the prior art, the hot pressing forming device 4 in the embodiment of the present invention is simple to operate, high in efficiency, good in effect, and can meet the needs of mass production.

[0156] Furthermore, the driving member 432 in the embodiment of the present invention is preferably a hot-pressed cylinder.

[0157] Furthermore, in the embodiment of the present invention, at least two hollow areas 412 are provided, and the hollow areas 412 are symmetrically arranged on both sides of the second mounting seat 41 , and the hot pressing module 43 is arranged corresponding to the hollow areas 412 .

[0158] More specifically, four hollow areas 412 are provided in the embodiment of the present invention, and two hollow areas 412 are respectively provided on both sides of the hot pressing channel 411. The hollow areas 412 on the same side are arranged at intervals along the axial direction of the hot pressing channel 411. Since four hollow areas 412 and four hot pressing modules 43 are provided, hot pressing is performed on two places of the same filter rod, thereby completing the hot pressing forming process of the duckbill filter rod.

[0159] Furthermore, in the embodiment of the present invention, multiple groups of hot pressing channels 411 are arranged at intervals along their radial directions in the second mounting seat 41. The forming parts 433 correspond to the hollow areas 412 one by one, and the forming parts 433 are arranged at intervals on the template 431. Since multiple groups of hot pressing channels 411 are provided, when the telescopic end of the driving part 432 drives the template 431 to move towards the direction of the hot pressing channel 411, the forming parts 433 pass through the hollow areas 412 and act on the filter rod in the hot pressing channel 411 to perform hot pressing on the filter rod. Since multiple groups of hot pressing channels 411 are provided, multiple filter rods can be formed at one time, further increasing the efficiency of hot pressing forming.

[0160] Furthermore, the hot pressing module 43 in the embodiment of the present invention further includes a second guiding mechanism 434. The second guiding mechanism 434 is used to limit and constrain the moving direction of the template 431 so that the forming part 433 can pass through the hollow area 412 and enter the hot pressing channel 411. Under the limiting and constraining of the second guiding mechanism 434, it is possible to avoid the deviation of the moving direction of the template 431 and prevent the forming part 433 from accidentally touching the second mounting seat 41.

[0161] Furthermore, in the above structure, the second guiding mechanism 434 in the embodiment of the present invention includes a support seat 4341 and a guiding rod 4342; the support seat 4341 is connected to the fixed end of the driving part 432; one end of the guiding rod 4342 is connected to the support seat 4341, the axis of the guiding rod 4342 is perpendicular to the second mounting seat 41, and the template 431 is provided with a guiding groove for cooperating with the guiding rod 4342. The fixed end of the driving part 432 is connected to the support seat 4341, the telescopic end of the driving part 432 is connected to the template 431, and the template 431 is provided with a guiding groove, and the guiding groove cooperates with the guiding rod 4342 to limit and constrain the template 431 to move along the direction perpendicular to the support seat 4341. Furthermore, multiple groups of guiding rods 4342 are provided in the embodiment of the present invention, which has a better guiding effect.

[0162] Further, in the above structure, the hot pressing module 43 in the embodiment of the present invention further includes a second elastic reset member 435; the second elastic reset member 435 is connected to the template 431 and is used to provide a restoring force for the template 431 through its own elastic force, so that the template 431 is reset in a direction away from the second mounting seat 41 until the forming portion 433 is separated from the hot pressing channel 411. Specifically, when the telescopic end of the driving member 432 drives the template 431 to move towards the hot pressing channel 411, the elastic member is compressed. After the hot pressing is completed, the telescopic end of the driving member 432 retracts, and the elastic member provides a restoring force through its own elastic force, so that the template 431 is reset in a direction away from the second mounting seat 41 under the constraint of the guide rod 4342 until the forming portion 433 is separated from the hot pressing channel 411, facilitating the removal of the filter rod from the hot pressing channel 411. The second elastic reset member 435 in the embodiment of the present invention is specifically an elastic member.

[0163] Further, the hot pressing module 43 further includes a heating member 436 and a temperature sensor 437; the heating member 436 is disposed on the template 431 to heat the template 431, and the temperature sensor 437 is connected to the heating member 436, and the temperature sensor 437 is used to detect the temperature of the template 431. During the hot pressing forming process, the forming portion 433 of the filter rod requires sufficient temperature and pressure holding time. Since the heating member 436 is provided, before the filter rod is hot pressed and formed, the heating member 436 heats the template 431 and the forming portion 433. Since the temperature sensor 437 is provided, the temperature sensor 437 is used to obtain the temperature of the template 431, and the temperature sensor 437 is connected to the heating member 436, and the power of the heating member 436 can be controlled, so as to more precisely control the temperature of the template 431 and the forming portion 433.

[0164] Further, as a more preferred implementation manner, the positioning assembly 42 in the embodiment of the present invention further includes a second mounting plate 421 and a positioning rod 422. There are two groups of the second mounting plates 421, and the two groups of the second mounting plates 421 are respectively disposed on both sides of one end of the second mounting seat 41. The positioning rod 422 is disposed at one end of the hot pressing channel 411, and both ends of the positioning rod 422 are movably connected to the second mounting plate 421.

[0165] Furthermore, the positioning component 42 in the embodiment of the present invention further includes a sliding groove 423, a positioning block 424, and a lifting rod assembly 425; the sliding groove 423 is arranged on the second mounting plate 421, and the sliding groove 423 is slidably connected with the positioning rod 422; there are two positioning blocks 424, and the two positioning blocks 424 are respectively arranged on the outer side of the sliding groove 423, and the positioning block 424 is connected with the positioning rod 422 for limiting and restraining the axial displacement of the positioning rod 422; the lifting rod assembly 425 is connected with the positioning block 424 to drive the positioning rod 422 to move along the sliding groove 423. The positioning rod 422 is installed in the sliding groove 423, and the positioning block 424 is installed on the outer side of the sliding groove 423 to prevent the axial movement of the positioning rod 422. When the filter rod is fed into the hot pressing channel 411, the axial position of the filter rod is positioned by the positioning rod 422. When the front end of the filter rod contacts the positioning rod 422, the filter rod stops moving, and the filter rod is hot-pressed and formed by the hot pressing module 43. After the hot pressing and forming is completed, the lifting rod assembly 425 drives the positioning rod 422 to move in the sliding groove 423 to adjust the height of the positioning rod 422 so that the filter rod can be pushed out of the hot pressing channel 411.

[0166] As a more preferred embodiment, the hot pressing and forming device 4 in the embodiment of the present invention further includes forming lines, wherein the forming lines are arranged on the surface of the forming part 433 in contact with the filter rod.

[0167] As a more preferred embodiment, the filter rod hot pressing and forming equipment in the embodiment of the present invention further includes a collecting device 5 and a conveying device 6, wherein the collecting device 5 is arranged at one end of the hot pressing and forming device 4 away from the pushing device 3, and the conveying device 6 is used to drive the collecting device 5 to move. The hot-pressed and formed filter rods are collected by the collecting device 5, and the filter rods collected by the collecting device are transported by the conveying device 6.

[0168] Specifically, the collecting device 5 in the embodiment of the present invention includes an aggregating member 51 and a collecting groove 52; the collecting groove 52 is arranged on the aggregating member 51, and the collecting groove 52 is used for placing filter rods. There are multiple collecting grooves 52, and one collecting groove 52 is communicated with one hot pressing channel 411, and the pushing device 3 can push the filter rods in the hot pressing channel 411 into the collecting groove 52. After the hot pressing and forming is completed, the lifting rod assembly 425 drives the positioning rod 422 to move in the sliding groove 423 to adjust the height of the positioning rod 422, and the push rod continues to push the filter rod forward so that the filter rod can be pushed out of the hot pressing channel 411 into the collecting groove 52 for collection.

[0169] More specifically, the conveying device in the embodiment of the present invention is specifically a belt conveying mechanism.

[0170] Please as Figures 29 to 31As shown, in the embodiments of the present invention, a method of applying the above hot pressing forming device is further provided, including the following steps: S1. The filter rod film covering device 1 covers the outer surface of the filter rod to be covered with film and outputs the filter rod after the film covering is completed; S2. The filter rod pre-positioning device 2 receives the filter rod after the film covering and arranges the filter rods in the material grooves on the material plate; S3. The material pushing device 3 is started to push the filter rods in the material grooves into the hot pressing channel of the hot pressing forming device; S4. The hot pressing forming device 4 is started to perform hot pressing forming on the filter rods in the hot pressing channel. The present invention also provides a method of performing hot pressing forming by using the filter rod hot pressing forming device. The outer surface of the filter rod to be covered with film is covered with film by the filter rod film covering device and the filter rod after the film covering is completed is output; the filter rod after the film covering is received by the filter rod pre-positioning device and the filter rods are arranged in the material grooves on the material plate; the material pushing device is started to push the filter rods in the material grooves into the hot pressing channel of the hot pressing forming device; the hot pressing forming device is started to perform hot pressing forming on the filter rods in the hot pressing channel. Similarly, the technical effects of good forming effect, high efficiency and meeting the requirements of automated production can be achieved.

[0171] Among them, in the method provided in the embodiments of the present invention, the forming of the filter rod is further included before step S1. The forming of the filter rod includes the following steps: The wire drawing machine supplies wire to the forming die, and then through hot forming and cold setting, a filter rod with a hollow structure is formed. During cold setting, cold and dry gas is introduced into the setting cavity, and the temperature of the cold and dry gas is between 5°C and 10°C.

[0172] Furthermore, the method in the embodiments of the present invention further includes a cloth belt feeding device for pulling the filter rod to move in the filter rod film covering device 1. The moving speed of the filter rod in the filter rod film covering device 1 is greater than 20 m / min and less than 40 m / min. More specifically, step S1 provided in the embodiments of the present invention includes the following steps: The film covering liquid is prepared in advance, and the components of the film covering liquid are roughly the same as those of the filter rod, so that it can adhere well to the filter rod to form an integral structure and can play a filtering role; the cloth belt feeding device is used to pull the filter rod to move in the filter rod film covering device and control the moving speed of the filter rod in the filter rod film covering device 1 to be greater than 20 m / min and less than 40 m / min, so that the filter rod is more evenly coated with glue and covered with film.

[0173] Furthermore, in the method provided by the embodiment of the present invention, the filter rod film covering device 1 in the embodiment of the present invention includes: a first mounting seat 11, on which a receiving chamber 111 is provided; a film covering seat 12 received in the receiving chamber 111, the axial direction of the film covering seat 12 is provided with a hollow filter rod cavity 13, and an annular sealant cavity 14 is formed between the circumferential direction of the film covering seat 12 and the inner wall of the receiving chamber 111; a glue inlet 15 provided on the first mounting seat 11 and communicating with the sealant cavity 14; a glue injection assembly 16 communicating the sealant cavity 14 with the filter rod cavity 13; wherein, the flow rate of the glue injection assembly 16 injecting glue into the filter rod cavity 13 is 40 ml / min to 80 ml / min. The film covering liquid enters the sealant cavity of the filter rod film covering device 1 through the glue inlet, and enters the filter rod cavity through the glue injection assembly 16 to cover the filter rod in the filter rod cavity. Among them, the coating flow rate of the film covering liquid in the filter rod film covering device 1 is between 40 ml / min and 80 ml / min.

[0174] Furthermore, in the method provided by the embodiment of the present invention, a drying device is further provided between the filter rod film covering device 1 and the filter rod pre-positioning device 2; the drying device is used to spray cold dry gas on the filter rod to dry the filter rod after film covering, and the temperature of the cold dry gas is between 5°C and 10°C. After the glue layer is dried, an outer film can be formed on the outer surface of the filter rod, so as to perform hot pressing forming on the filter rod in the subsequent process. The outer film has good airtightness and thermoplasticity, and can undergo extension deformation along with the hot pressing of the filter rod, and is suitable for various specially shaped filter rods formed by hot pressing.

[0175] Furthermore, in S2 provided by the embodiment of the present invention, the filter rod pre-positioning device includes a material box 21, a baffle 22 and a material plate 23. Among them, a material groove 231 is provided on the material plate 23 for placing filter rods. The material groove 231 extends along the axial direction of the filter rod, and the filter rod is pre-positioned through the material groove 231. The material box 21 is arranged above the material plate 23, and an outlet part communicating with the material groove 231 is provided at the bottom of the material box 21. The baffle 22 is arranged between the material box 21 and the material groove 231, and a passing part 222 is provided on the baffle 22. The passing part 222 is used in cooperation with the material groove 231. When the passing part 222 is located directly above the material groove 231, the filter rods in the material box 21 can enter the material groove 231 through the outlet part and the passing part 222, realizing the pre-positioning of the filter rods. In order to prevent the filter rods from accumulating in the material groove 231, a blocking part 221 and a power assembly 24 are also provided. Among them, the blocking part 221 is used in cooperation with the material groove 231, and the power assembly 24 is connected to the baffle 22 to drive the baffle 22 to reciprocate radially along the material groove 231, so that the baffle 22 has a first state and a second state. When the baffle 22 moves to the first state, the filter rods in the material box 21 can enter the material groove 231 through the outlet part and the passing part 222, realizing the pre-positioning of the filter rods. When the baffle 22 moves to the second state, the filter rods are located above the blocking part 221 and cannot enter the material groove 231, preventing the accumulation of filter rods.

[0176] The filter rod pre-positioning device in the embodiment of the present invention further includes a fixing frame 26, a guide rod 27 and a vibration box assembly 28; there are two groups of fixing frames 26, and the two groups of fixing frames 26 are respectively arranged on both sides of the material box 21; the guide rod 27 is arranged along the radial direction of the material groove 231, and both ends of the guide rod 27 are connected to the fixing frame 26, and the guide rod 27 is movably connected to the material box 21; the vibration box assembly is connected to the material box 21 to drive the material box 21 to reciprocate along the axial direction of the guide rod 27. After the filter rods are dried, they are sent into the material box. The vibration box assembly 28 drives the material box to reciprocate along the axial direction of the guide rod 27, so that the filter rods are evenly distributed at the bottom of the material box. Among them, the reciprocating frequency of the material box 21 is greater than or equal to one cycle per second, that is, the material box 21 swings back and forth at least once within one second.

[0177] Further, the hot pressing forming device 4 in the embodiment of the present invention includes a second mounting base 41 and a hot pressing module 43; wherein, a hot pressing channel 411 is arranged in the second mounting base 41, and a hollow area 412 communicating with the hot pressing channel 411 is arranged on the second mounting base; the hot pressing module 43 is arranged outside the second mounting base 41, the hot pressing module 43 includes a template 431 and a driving member 432, a forming portion 433 protruding towards the hollow area 412 is arranged on the template 431, the forming portion 433 is arranged opposite to the hollow area 412, and the telescopic end of the driving member 432 is connected to the template 431 to drive the forming portion 433 to pass through the hollow area 412 and enter the hot pressing channel 411; the time when the forming portion 433 acts on the surface of the filter rod is greater than 4 s and less than 6 s. S4 in the embodiment of the present invention is specifically: start the driving member, the telescopic end of the driving member drives the forming portion on the template to pass through the hollow area and act on the filter rod, the time when the forming portion 433 acts on the surface of the filter rod is greater than 4 s and less than 6 s, after the forming is completed, the template retracts to the initial position, and before the second working cycle, the template stays at the initial position for about 6.5 s to make the temperature on the surface of the template more balanced.

[0178] As a more preferred embodiment, the hot pressing forming device 4 in the embodiment of the present invention further includes a heating member 436 and a temperature sensor 437; the heating member 436 is arranged on the template 431, the temperature sensor 437 is connected to the heating member 436, and the temperature sensor 437 is used to obtain the real-time temperature of the template 431; in step S4, before hot pressing and forming the filter rod in the hot pressing channel, preheat the template through the heating member 436, and the preheating time of the heating member 436 is 4 s to 10 s so that the temperature of the template is 90 °C to 105 °C.

[0179] As a more preferred embodiment, the hot pressing forming device 4 in the embodiment of the present invention further includes a positioning assembly 42, the positioning assembly 42 is used to limit and constrain the axial position of the filter rod in the hot pressing channel 411, after the hot pressing forming is completed, the positioning assembly moves away, and the pushing device pushes the filter rod out of the hot pressing forming device. So that the mouthpiece rod enters into the [device] under the push of the push rod and falls into the collection groove of the collection device, and the collection device is conveyed through the conveying device. The conveying device moves at a constant linear speed of 0.5 m / s to convey the mouthpiece rod to the corresponding position, and then it is manually boxed and placed in the mouthpiece rod transfer paper box.

[0180] After the filter rod is hot pressed and formed, it is automatically aligned and cut by a cutting device so that the formed rod 7 is divided into single filter tips 8 that can be connected to cigarettes, and the filter tips 8 are bonded to the cigarettes.

[0181] The method of applying a hot pressing forming device in the present invention pre - forms a filter rod, then laminates and dries the filter rod, and then automatically feeds the dried filter rod into the hot pressing forming device. Subsequently, the hot pressing forming device performs hot pressing on the laminated filter rod. After drying, the laminated filter rod can be automatically or manually placed into the feed bin of the filter rod pre - positioning device for pre - positioning the filter rod. The filter rod is pushed into the hot pressing channel of the hot pressing forming device through a pushing device; the hot pressing forming device operates for forming. The hot pressing forming device can hot - press multiple filter rods into beak - shaped rods at one time, with good forming effect, high automation degree and high efficiency. By adopting the method of applying the hot pressing forming device in the present invention, the entire cycle from the filter rod pre - positioning device to hot pressing and discharging of the filter rod is controlled within 12 s, and the production capacity can reach 15,000 pieces per hour. It has high efficiency and can meet the requirements of automated production.

[0182] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A filter rod hot pressing and forming device, characterized in that It includes a filter rod film laminating device (1), a filter rod pre-positioning device (2), a feeding device (3), and a hot pressing and forming device (4); Among them, the filter rod film laminating device (1) is used for laminating the surface of the filter rod to be laminated and outputting the laminated filter rod; the filter rod pre-positioning device (2) is used for receiving the filter rod and arranging the filter rod in the material groove (231) of the material plate (23). The filter rod pre-positioning device (2) includes a material box (21), a baffle (22), and a power assembly (24); the material box (21) is arranged above the material plate (23), and an outlet part communicating with the material groove (231) is arranged at the bottom of the material box (21); the baffle (22) is arranged between the material box (21) and the material plate (23), and a blocking part (221) and a passing part (222) used in cooperation with the material groove (231) are arranged on the baffle (22); the power assembly (24) drives the baffle (22) to reciprocate radially along the material groove (231) so that the baffle (22) has a first state and a second state. When the baffle (22) is in the first state, the filter rod passes through the outlet part and the passing part (222) and enters the material groove (231); the feeding device (3) pushes the filter rod in the filter rod pre-positioning device (2) into the hot pressing channel (411) of the hot pressing and forming device (4), and the hot pressing and forming device (4) performs hot pressing and forming on the filter rod located in the hot pressing channel (411); the filter rod pre-positioning device (2) further includes a flow guiding member (25); the flow guiding member (25) is arranged at the outlet part, at least two flow guiding members (25) are arranged, and the flow guiding members (25) are arranged at intervals radially along the material groove (231), and the distance between adjacent flow guiding members (25) is not less than the width of the passing part (222).

2. The filter rod hot pressing and forming equipment according to claim 1, characterized in that the filter rod film laminating device (1) includes: a first mounting seat (11) with an accommodation chamber (111) arranged thereon; a film laminating seat (12) accommodated in the accommodation chamber (111), a hollow filter rod cavity (13) is axially arranged on the film laminating seat (12), and an annular sealant cavity (14) is formed between the circumferential direction of the film laminating seat (12) and the inner wall of the accommodation chamber (111); a glue inlet (15) arranged on the first mounting seat (11) and communicating with the sealant cavity (14); a glue injection assembly (16) communicating the sealant cavity (14) with the filter rod cavity (13).

3. The filter rod hot pressing and forming equipment according to claim 2, characterized in that the filter rod film laminating device (1) further includes: a cloth belt conveying mechanism for driving the filter rod to be laminated to move in the filter rod cavity.

4. The filter rod hot pressing and forming equipment according to claim 3, characterized in that it further includes a drying device; The drying device is arranged between the filter rod film covering device (1) and the filter rod pre-positioning device (2), and the drying device is used for drying the filter rod.

5. The filter rod hot pressing and forming equipment according to claim 1, characterized in that The filter rod pre-positioning device (2) further includes a fixing frame (26), a guiding rod (27) and a vibrating box assembly (28); There are two groups of the fixing frames (26), and the two groups of the fixing frames (26) are respectively arranged on both sides of the material box (21); The guiding rod (27) is arranged along the radial direction of the material groove (231), and both ends of the guiding rod (27) are connected to the fixing frame (26), and the guiding rod (27) is movably connected to the material box (21); The vibrating box assembly (28) is connected to the material box (21) and drives the material box (21) to reciprocate along the axial direction of the guiding rod (27).

6. The filter rod hot pressing and forming equipment according to any one of claims 1 to 5, characterized in that The pushing device (3) includes a push rod (31), a push rod seat (32), a first guiding mechanism (33) and a pushing power member (34); Wherein, The push rod (31) is arranged at one end of the material groove (231) away from the hot pressing and forming device (4), the push rod (31) is connected to the push rod seat (32), the pushing power member (34) is connected to the push rod seat (32), the first guiding mechanism (33) is used for limiting and constraining the movement of the push rod seat (32) along the axial direction of the material groove (231), and the pushing power member (34) drives the push rod seat (32) to move so that the push rod (31) pushes the filter rod to move.

7. The filter rod hot pressing and forming equipment according to claim 6, characterized in that The hot pressing and forming device (4) includes a second mounting seat (41) and a hot pressing module (43); Wherein, The hot pressing channel (411) is arranged in the second mounting seat (41), and a hollow area (412) communicated with the hot pressing channel (411) is arranged on the second mounting seat; The hot pressing module (43) is arranged outside the second mounting seat (41), the hot pressing module (43) includes a template (431) and a driving member (432), a forming portion (433) protruding towards the hollow area (412) is arranged on the template (431), the forming portion (433) is arranged opposite to the hollow area (412), and the telescopic end of the driving member (432) is connected to the template (431) to drive the forming portion (433) to pass through the hollow area (412) and enter the hot pressing channel (411).

8. The filter rod hot pressing and forming equipment according to claim 7, characterized in that The hot pressing and forming device (4) further includes a second mounting plate (421) and a positioning rod (422); The second mounting plate (421) is provided with two groups, and the two groups of the second mounting plates (421) are respectively arranged on both sides of the second mounting seat (41). The positioning rod (422) is arranged at one end of the hot pressing channel (411), and both ends of the positioning rod (422) are movably connected to the second mounting plate (421).

9. The filter rod hot pressing and forming device according to claim 8, wherein the hot pressing and forming device (4) further comprises a sliding groove (423), a positioning block (424) and a lifting rod assembly (425); the sliding groove (423) is arranged on the second mounting plate (421), and the sliding groove (423) is slidably connected with the positioning rod (422); There are two positioning blocks (424), and the two positioning blocks (424) are respectively arranged outside the sliding groove (423) for limiting and restricting the axial displacement of the positioning rod (422); The lifting rod assembly (425) is connected to the positioning block (424) to drive the positioning rod (422) to move along the sliding groove (423) for adjusting the height of the positioning rod (422).

10. The filter rod hot pressing and forming device according to claim 8, wherein it further comprises a collecting device (5) and a conveying device (6); wherein, the collecting device (5) is arranged at one end of the hot pressing and forming device (4) away from the pushing device (3), and the conveying device (6) is used for driving the collecting device (5) to move.

11. The filter rod hot pressing and forming device according to claim 10, wherein the collecting device (5) comprises an aggregating member (51) and a collecting groove (52); The collecting groove (52) is arranged on the aggregating member (51). The collecting groove (52) is used for placing filter rods. There are multiple collecting grooves (52), and one collecting groove (52) is communicated with one hot pressing channel (411). The pushing device (3) can push the filter rods in the hot pressing channel (411) into the collecting groove (52).

12. A method of applying the hot pressing forming device according to any one of claims 1 to 11, characterized in that, including the following steps: S1. The filter rod film covering device (1) covers the outer surface of the filter rod to be covered with film and outputs the filter rod after film covering; S2. The filter rod pre-positioning device (2) receives the filter rod after film covering and arranges the filter rod in the material grooves on the material plate; S3. The pushing device (3) is started to push the filter rods in the material grooves into the hot pressing channels of the hot pressing and forming device; S4. The hot pressing and forming device (4) is started to hot press and form the filter rods in the hot pressing channels.

13. The method according to claim 12, wherein it further comprises a cloth belt feeding device for pulling the filter rods to move in the filter rod film covering device (1). Wherein, the moving speed of the filter rods in the filter rod film covering device (1) is greater than 20 m / min and less than 40 m / min.

14. The method according to claim 13, wherein A drying device is further provided between the filter rod film coating device (1) and the filter rod pre-positioning device (2); The drying device is used to spray cold drying gas onto the filter rod for drying the filter rod after film coating, and the temperature of the cold drying gas is between 5°C and 10°C.

15. The method according to claim 14, wherein The filter rod film coating device (1) includes: A first mounting seat (11) provided with an accommodation chamber (111) thereon; A film coating seat (12) housed in the accommodation chamber (111), the film coating seat (12) having a hollow filter rod cavity (13) axially, and a ring-shaped sealant cavity (14) formed between the circumferential direction of the film coating seat (12) and the inner wall of the accommodation chamber (111); A glue inlet (15) provided on the first mounting seat (11) and communicating with the sealant cavity (14); A glue injection assembly (16) communicating the sealant cavity (14) with the filter rod cavity (13); Wherein, the flow rate of the glue injection assembly (16) injecting glue into the filter rod cavity (13) is 40 ml / min to 80 ml / min.

16. The method according to claim 12, wherein The hot pressing and forming device (4) includes a second mounting seat (41) and a hot pressing module (43); Wherein, a hot pressing channel (411) is provided in the second mounting seat (41), and a hollow area (412) communicating with the hot pressing channel (411) is provided on the second mounting seat; The hot pressing module (43) is provided outside the second mounting seat (41), the hot pressing module (43) includes a template (431) and a driving member (432), a forming portion (433) protruding towards the hollow area (412) is provided on the template (431), the forming portion (433) is arranged opposite to the hollow area (412), and the telescopic end of the driving member (432) is connected to the template (431) to drive the forming portion (433) to pass through the hollow area (412) and enter the hot pressing channel (411); The time for the forming portion (433) to act on the surface of the filter rod is greater than 4 s and less than 6 s.

17. The method according to claim 16, wherein The hot pressing and forming device (4) further includes a heating member (436) and a temperature sensor (437); The heating member (436) is provided on the template (431), the temperature sensor (437) is connected to the heating member (436), and the temperature sensor (437) is used to obtain the real-time temperature of the template (431); In step S4, before hot pressing and forming the filter rod in the hot pressing channel, the template is preheated by the heating member (436), and the preheating time of the heating member (436) is 4 s to 10 s so that the temperature of the template is 90°C to 105°C.

18. The method according to claim 16, wherein The hot pressing and forming device (4) further includes a positioning component (42), and the positioning component (42) is used for limiting and constraining the axial position of the filter rod in the hot pressing channel (411). After the hot pressing and forming is completed, the positioning component is moved away, and the pushing device (3) pushes the filter rod out of the hot pressing and forming device.

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