A new hollow filter rod forming device
The integrated design of the hollow filter rod forming device solves the positional deviation problem caused by the independent structure of the feeder, tobacco tongue and core mold, and realizes high-precision forming and stable conveying of filter rods, thereby improving production efficiency and product consistency.
Patent Information
- Application Number
- CN202521493516.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2035-07-17
AI Technical Summary
In existing hollow filter rod forming devices, the high-pressure wire feeder, the cigarette tongue, and the core mold are independent structures, which leads to positional deviations, affecting the forming quality and consistency of the filter rods. The operation is cumbersome and the accuracy is difficult to guarantee.
The new hollow filter rod forming device with integrated design integrates the wire feeder assembly, the tongue assembly and the core mold assembly into a whole structure. It achieves precise position correction through the horizontal guide assembly and the core mold adjustment assembly, and with the help of multi-stage wire feeding chamber and pressing mechanism, it ensures uniform distribution of wire bundle and concentricity of filter rod.
It improves the concentricity and appearance quality of filter rods, enhances the stability and density consistency of fiber conveying, reduces debugging difficulty, and improves production efficiency and process adaptability.
Smart Images
Figure CN224584177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco manufacturing equipment technology, specifically to a novel hollow filter rod forming device. Background Technology
[0002] During the molding process of hollow filter rods, the opened fiber bundles are stably fed into the tobacco tongue by a high-pressure feeder. After being positioned by the core mold, the filter rod is formed into a cylindrical shape through high-temperature softening and low-temperature shaping in the tobacco gun. The relative positional accuracy of the high-pressure feeder, the tobacco tongue, and the core mold directly affects the molding quality of the filter rod: if the position is deviated, it can easily lead to uneven distribution of the fiber bundles and insufficient concentricity of the filter rod, which in turn can cause problems such as unstable draw resistance and appearance defects.
[0003] In existing technologies, the high-pressure feeder, tobacco tongue, and core mold are mostly independent structures, lacking integrated design. Their relative position adjustment relies on the separate debugging of multiple independent components, which is cumbersome and difficult to guarantee accuracy. Specifically, the coaxiality deviation between the core mold and the tobacco tongue will cause the hollow part of the filter rod to become eccentric, and the alignment deviation between the high-pressure feeder and the tobacco tongue will cause the yarn bundle to shift or leak, ultimately affecting the process compliance and product consistency of the filter rod.
[0004] Therefore, a novel hollow filter rod forming device with integrated design is needed to solve the filter rod quality problems caused by independent components and positional deviations in the existing technology by optimizing the structural layout and adjustment mechanism. Utility Model Content
[0005] The purpose of this invention is to provide a novel hollow filter rod forming device, which aims to solve the aforementioned technical problems existing in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A novel hollow filter rod forming device includes a smoke gun assembly and a horizontal guide assembly. Both the smoke gun assembly and the horizontal guide assembly are fixedly installed in the channel of the forming machine. The lateral displacement end of the horizontal guide assembly is fixedly installed to the top of a wire feeder assembly. A tongue assembly is fixedly installed at the output end of the wire feeder assembly. The front end of the tongue assembly is placed at one end of the top of a tongue holder. A secondary wire feeding mechanism is provided above the tongue holder along its length. The secondary wire feeding mechanism is fixedly installed to the lateral displacement end of the horizontal guide assembly. The tongue holder is fixedly installed on the... At the channel of the forming machine, the other end of the feeder assembly is closely attached to the input end of the cigarette gun assembly. The bottom of the feeder assembly is fixedly installed with the longitudinal displacement end of the core mold adjustment assembly. The core mold assembly is movably connected inside the feeder assembly. One end of the core mold assembly extends into the inside of the cigarette tongue assembly, and the other end extends out of the feeder assembly and is fixedly installed with the vertical displacement end of the core mold adjustment assembly. At one side of the cigarette tongue fixing seat, a pressing mechanism is fixedly installed with the channel of the forming machine. The pressing mechanism fixes the lateral position of the feeder assembly by pressing the horizontal guide assembly.
[0008] In a preferred embodiment of the present invention, the wire feeder assembly includes a main wire feeder chamber, one end of which is provided with a wire feeder connector, which is fixedly installed with the tobacco tongue assembly, and the other end of which is fixedly installed with a wire feeder tailstock. The main wire feeder chamber is provided with a positive pressure inlet, which blows the wire bundle out of the wire feeder connector by connecting compressed air.
[0009] In a preferred embodiment of the present invention, the pressing mechanism includes a fixed base, which is fixedly installed on the frame of the molding machine. The front and rear sides of the top surface of the fixed base are respectively hinged to the bottom ends of the handle frame and the pressure plate. The handle frame and the pressure plate are respectively hinged to the two ends of the connecting rod near the middle.
[0010] In a preferred embodiment of the present invention, the core mold adjustment assembly includes a slide base fixedly installed on the bottom surface of the wire feeder assembly. The slide base is slidably connected to the top surface of the horizontal slide in the longitudinal direction. A shaft seat is fixedly installed on one side of the slide base. The shaft seat is rotatably connected to one end of the longitudinal handle. The longitudinal handle is threadedly connected to the horizontal slide.
[0011] A vertical slide is slidably connected to the side of the horizontal slide in the vertical direction. A vertical handle is threadedly connected to the vertical slide along its length. A second bearing seat is fixedly installed on the bottom surface of the horizontal slide, and the second bearing seat is rotatably connected to the bottom end of the vertical handle.
[0012] In a preferred embodiment of the present invention, the core mold assembly consists of a shaft and an adjusting handle. The shaft passes through the wire feeder assembly and extends into the inside of the tongue assembly. The end of the adjusting handle is fixed to the side of the vertical slide of the core mold adjusting assembly.
[0013] In a preferred embodiment of the present invention, the horizontal guide assembly includes a mounting base plate fixedly installed on the forming frame, a linear guide rail assembly fixedly installed on the top surface of the mounting base plate along the horizontal direction, the mounting base plate being fixedly installed to a sliding connecting plate through the linear guide rail assembly, and the wire feeder assembly being fixedly installed on the bottom surface of the sliding connecting plate.
[0014] In a preferred embodiment of this utility model, the secondary wire feeding mechanism includes an upper limit plate, which is fixedly installed on the bottom surface of the sliding connecting plate. The bottom surface of the upper limit plate is sequentially and fixedly installed with a secondary wire feeding cavity, a tertiary wire feeding cavity, and a support seat along the wire feeding direction. The bottom surfaces of the secondary wire feeding cavity and the tertiary wire feeding cavity are in close contact with the top surface of the tongue assembly, and compressed air is introduced from the top of both cavities to achieve uniform distribution of the wire bundle within the tongue assembly.
[0015] The beneficial effects of this utility model are:
[0016] This invention integrates the wire feeder assembly, tongue assembly, and core mold assembly into a single structure. A core mold adjustment assembly allows for fine-tuning of the core mold in both horizontal and vertical directions, precisely correcting its relative position to ensure the hollow filter rod is centered, improving filter rod concentricity and appearance quality. A horizontal guide assembly simultaneously adjusts the horizontal position of the wire feeder assembly and tongue assembly, allowing the size of the circular channel formed by the tongue and the filter gun base to be flexibly adjusted according to the tongue's insertion depth. This is then secured by a pressing mechanism (or tongue fixing assembly) to prevent vibration and ensure stable wire feeding. Furthermore, the multi-stage wire feeding chambers of the wire feeder assembly and tongue assembly are connected to compressed air, ensuring uniform wire distribution and improving filter rod density consistency. All adjustment components are easy to operate, reducing debugging difficulty and enhancing process adaptability and production efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0018] Figure 2 This is a three-dimensional structural diagram of the wire feeder assembly and the tobacco tongue assembly.
[0019] Figure 3 This is a three-dimensional structural diagram of the clamping mechanism;
[0020] Figure 4 This is a three-dimensional structural diagram of the core mold adjustment assembly;
[0021] Figure 5This is a three-dimensional structural diagram of the horizontal guide component.
[0022] Figure labels;
[0023] The components include: 1. Silk feeder assembly; 11. Silk feeder connector; 12. Silk feeder tailstock; 13. Positive pressure inlet; 14. Main silk feed chamber; 2. Tongue assembly; 3. Pressing mechanism; 31. Fixed base; 32. Pressure plate; 33. Connecting rod; 34. Handle holder; 4. Tobacco gun assembly; 5. Core mold adjustment assembly; 51. Slide base; 52. Shaft seat one; 53. Longitudinal handle; 54. Horizontal slide; 55. Vertical handle; 56. Shaft seat two; 57. Vertical slide; 6. Core mold assembly; 61. Adjusting handle; 62. Shaft; 7. Horizontal guide assembly; 71. Mounting base plate; 72. Linear guide rail assembly; 73. Sliding connecting plate; 8. Secondary silk feed mechanism; 81. Secondary silk feed chamber; 82. Tertiary silk feed chamber; 83. Upper limit plate; 84. Support seat; 9. Tongue fixing seat. Detailed Implementation
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.
[0025] Example:
[0026] Please refer to the example below. Figure 1-5As shown, this embodiment provides a novel hollow filter rod forming device, including a smoke gun assembly 4 and a horizontal guide assembly 7. Both the smoke gun assembly 4 and the horizontal guide assembly 7 are fixedly installed in the channel of the forming machine. The lateral displacement end of the horizontal guide assembly 7 is fixedly installed to the top of the feeder assembly 1. A tongue assembly 2 is fixedly installed at the output end of the feeder assembly 1. The front end of the tongue assembly 2 is placed at one end of the top of the tongue fixing seat 9. A secondary feeding mechanism 8 is provided above the tongue fixing seat 9 along its length. The secondary feeding mechanism 8 is fixedly installed to the lateral displacement end of the horizontal guide assembly 7. The fixed seat 9 is fixedly installed in the channel of the forming machine, and its other end is close to the input end of the cigarette gun assembly 4. The bottom of the feeder assembly 1 is fixedly installed with the longitudinal displacement end of the core mold adjustment assembly 5. The core mold assembly 6 is movably connected inside the feeder assembly 1. One end of the core mold assembly 6 extends into the inside of the tongue assembly 2, and the other end extends out of the feeder assembly 1 and is fixedly installed with the vertical displacement end of the core mold adjustment assembly 5. On one side of the tongue fixing seat 9, a pressing mechanism 3 is fixedly installed in the channel of the forming machine. The pressing mechanism 3 fixes the lateral position of the feeder assembly 1 by pressing the horizontal guide assembly 7.
[0027] Specifically, such as Figure 1-2 As shown, the horizontal guide component 7 is used to adjust the lateral direction of the feeder component 1, the tongue component 2, and the secondary feeder mechanism 8 in a synchronous manner along the channel extension direction (i.e., lateral) of the forming machine. After the positions of the above components are adjusted, the horizontal guide component 7 is pressed down and fixed by the clamping mechanism 3. The tongue component 2 is pressed down by a downward force so that it and the tongue fixing seat 9 together form a circular channel for conveying the filament bundle. The size of the circular channel formed by the tongue component 2 and the bottom plate of the cigarette gun component 4 is adjusted according to the depth of the tongue component 2 extending into the bottom plate of the cigarette gun component 4. The horizontal guide component 7 and the tongue are clamped and fixed by the clamping mechanism 3. The longitudinal and vertical positional relationship between the core mold component 6, the tongue component 2, and the feeder component 1 is adjusted by manually adjusting the core mold component 5, so that the shaft 62 of the core mold component 6 and the tongue component 2 can be precisely coaxial, ensuring that the appearance quality of the filter rod meets the process requirements.
[0028] In a preferred embodiment of the present invention, the wire feeder assembly 1 includes a main wire feeding chamber 14, one end of which is provided with a wire feeding connector 11, which is fixedly installed with the tobacco tongue assembly 2, and the other end of the main wire feeding chamber 14 is fixedly installed with a wire feeder tail seat 12. The main wire feeding chamber 14 is provided with a positive pressure inlet 13, which blows the wire bundle out of the wire feeding connector 11 by connecting compressed air.
[0029] In a preferred embodiment of this utility model, the pressing mechanism 3 includes a fixed base 31, which is fixedly installed on the frame of the molding machine. The front and rear ends of the top surface of the fixed base 31 are respectively hinged to the bottom ends of the handle frame 34 and the pressure plate 32. The handle frame 34 and the pressure plate 32 are respectively hinged to the two ends of the connecting rod 33 near their middle parts. Figure 3 As shown, through the structural characteristics of the linkage mechanism, the operator can achieve the actions of raising and lowering the pressure plate 32 by moving the handle frame 34.
[0030] In a preferred embodiment of the present invention, the core mold adjustment assembly 5 includes a slide base 51 fixedly installed on the bottom surface of the wire feeder assembly 1. The slide base 51 is slidably connected to the top surface of the horizontal slide 54 in the longitudinal direction. A shaft seat 52 is fixedly installed on one side of the slide base 51. The shaft seat 52 is rotatably connected to one end of the longitudinal handle 53. The longitudinal handle 53 is threadedly connected to the horizontal slide 54.
[0031] A vertical slide 57 is slidably connected to the side of the horizontal slide 54 along the vertical direction. A vertical handle 55 is threadedly connected to the vertical slide 57 along its length. A bearing seat 56 is fixedly installed on the bottom surface of the horizontal slide 54. The bearing seat 56 is rotatably connected to the bottom end of the vertical handle 55.
[0032] Specifically, such as Figure 4 As shown, by manually rotating the vertical handle 55, the vertical slide table 57 is driven to slide vertically along the horizontal slide table 54, thereby causing the adjusting handle 61 of the core mold assembly 6, which is fixedly installed thereto, to move up and down to adjust its vertical position relationship with the wire feeder assembly 1 and the tobacco tongue assembly 2.
[0033] By manually rotating the longitudinal handle 53, the slide base 51 is driven to move longitudinally on the top surface of the horizontal slide 54, thereby changing the longitudinal positional relationship between the adjusting handle 61 of the core mold assembly 6 and the shaft 62 and the feeder assembly 1 and the tongue assembly 2. Through the adjustment in these two directions, the position of the shaft 62 and the feeder assembly 1 and the tongue assembly 2 is kept concentric, improving the roundness of the filter rod and increasing its aesthetics.
[0034] In a preferred embodiment of the present invention, the core mold assembly 6 consists of a shaft 62 and an adjusting handle 61. The shaft 62 passes through the wire feeder assembly 1 and extends into the inside of the tobacco tongue assembly 2. The end of the adjusting handle 61 is fixed to the side of the vertical slide 57 of the core mold adjusting assembly 5.
[0035] In a preferred embodiment of the present invention, the horizontal guide assembly 7 includes a mounting base plate 71 fixedly mounted on the forming frame, a linear guide rail assembly 72 fixedly mounted on the top surface of the mounting base plate 71 in the horizontal direction, the mounting base plate 71 being fixedly mounted to the sliding connecting plate 73 via the linear guide rail assembly 72, and the wire feeder assembly 1 being fixedly mounted on the bottom surface of the sliding connecting plate 73.
[0036] In a preferred embodiment of this utility model, the secondary wire feeding mechanism 8 includes an upper limit plate 83, which is fixedly installed on the bottom surface of the sliding connecting plate 73. The bottom surface of the upper limit plate 83 is sequentially and fixedly installed with a secondary wire feeding cavity 81, a tertiary wire feeding cavity 82 and a support base 84 along the wire feeding direction. The bottom surfaces of the secondary wire feeding cavity 81 and the tertiary wire feeding cavity 82 are in close contact with the top surface of the tongue assembly 2, and compressed air is introduced from the top to achieve uniform distribution of the wire bundle in the tongue assembly 2.
[0037] Specifically, such as Figure 2 As shown, the third-stage feeding chamber 82 and the second-stage feeding chamber 81 are respectively provided with air pipe channels connected to compressed air, so that positive pressure enters the tobacco tongue according to the set flow rate, and the tobacco bundle is evenly distributed in the tobacco tongue.
[0038] The working principle of this novel hollow filter rod forming device is as follows: the wire feeder assembly 1 and the tongue assembly 2 move synchronously left and right by sliding the sliding connecting plate 73 on the horizontal guide assembly 7. After moving to the appropriate position, the handle frame 34 of the pressing mechanism 3 is pressed down, and the pressure plate 32 presses down so that the sliding connecting plate 73 cannot move. At the same time, the pressed tongue assembly 2 and the tongue fixing seat 9 form a channel for feeding the wire bundle.
[0039] On the other hand, by turning the longitudinal handle 53 and the vertical handle 55 respectively, the core mold assembly 6 can be finely adjusted in the front, back, up and down positions within the feeder and tongue assembly 2, so that the shaft 62 of the core mold assembly 6 is coaxial with the feeder assembly 1 and the tongue assembly 2.
[0040] After the equipment is started, the filament bundle is pulled into the circular conveying channel formed by the inlet of the filament feeder assembly 1 and the tongue assembly 2 and the tongue fixing seat 9. Under the action of the filament bundle, it is further compressed and tightened and then enters the heat-setting cigarette gun assembly for high-temperature forming. After entering the cold-setting cigarette gun assembly, it is quickly cooled and shaped to form a hollow paperless filter rod.
[0041] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A novel hollow filter rod forming device, comprising a smoke gun assembly (4) and a horizontal guide assembly (7), wherein the smoke gun assembly (4) and the horizontal guide assembly (7) are both fixedly installed in the channel of the forming machine, characterized in that, The horizontal guide assembly (7) is fixedly installed at the top of the feeder assembly (1) at its lateral displacement end. A tongue assembly (2) is fixedly installed at the output end of the feeder assembly (1). The front end of the tongue assembly (2) is placed at one end of the top of the tongue holder (9). A secondary feeding mechanism (8) is provided above the tongue holder (9) along its length. The secondary feeding mechanism (8) is fixedly installed at the lateral displacement end of the horizontal guide assembly (7). The tongue holder (9) is fixedly installed at the channel of the forming machine, and its other end is close to the input end of the cigarette gun assembly (4). The bottom of the feeder assembly (1) is fixedly installed with the longitudinal displacement end of the core mold adjustment assembly (5). The core mold assembly (6) is movably connected inside the feeder assembly (1). One end of the core mold assembly (6) extends into the inside of the tongue assembly (2), and the other end extends out of the feeder assembly (1) and is fixedly installed with the vertical displacement end of the core mold adjustment assembly (5). A pressing mechanism (3) is fixedly installed on one side of the tongue fixing seat (9) and at the channel of the forming machine. The pressing mechanism (3) fixes the lateral position of the feeder assembly (1) by pressing the horizontal guide assembly (7).
2. The novel hollow filter rod forming device according to claim 1, characterized in that, The wire feeder assembly (1) includes a main wire feeder chamber (14), one end of which is provided with a wire feeder connector (11), which is fixedly installed with the tobacco tongue assembly (2), and the other end of the main wire feeder chamber (14) is fixedly installed with a wire feeder tailstock (12). The main wire feeder chamber (14) is provided with a positive pressure inlet (13), which blows the wire bundle out of the wire feeder connector (11) by connecting compressed air.
3. The novel hollow filter rod forming device according to claim 1, characterized in that, The pressing mechanism (3) includes a fixed base (31), which is fixedly installed on the frame of the molding machine. The front and rear sides of the top surface of the fixed base (31) are respectively hinged to the bottom ends of the handle frame (34) and the pressure plate (32). The handle frame (34) and the pressure plate (32) are respectively hinged to the two ends of the connecting rod (33) near the middle.
4. The novel hollow filter rod forming device according to claim 1, characterized in that, The core mold adjustment assembly (5) includes a slide base (51) fixedly installed on the bottom surface of the wire feeder assembly (1). The slide base (51) is slidably connected to the top surface of the horizontal slide (54) along the longitudinal direction. A shaft seat (52) is fixedly installed on one side of the slide base (51). The shaft seat (52) is rotatably connected to one end of the longitudinal handle (53). The longitudinal handle (53) is threadedly connected to the horizontal slide (54). The horizontal slide (54) has a vertical slide (57) slidably connected to its side along the vertical direction. The vertical slide (57) has a vertical handle (55) threadedly connected along its length. The bottom surface of the horizontal slide (54) has a bearing seat (56) fixedly installed. The bearing seat (56) is rotatably connected to the bottom end of the vertical handle (55).
5. The novel hollow filter rod forming device according to claim 4, characterized in that, The core mold assembly (6) consists of a shaft (62) and an adjusting handle (61). The shaft (62) passes through the wire feeder assembly (1) and extends into the inside of the tongue assembly (2). The end of the adjusting handle (61) is fixed to the side of the vertical slide (57) of the core mold adjusting assembly (5).
6. The novel hollow filter rod forming device according to claim 1, characterized in that, The horizontal guide assembly (7) includes a mounting base plate (71) fixedly installed on the forming frame. A linear guide rail assembly (72) is fixedly installed on the top surface of the mounting base plate (71) in the horizontal direction. The mounting base plate (71) is fixedly installed to the sliding connecting plate (73) through the linear guide rail assembly (72). The wire feeder assembly (1) is fixedly installed on the bottom surface of the sliding connecting plate (73).
7. The novel hollow filter rod forming device according to claim 6, characterized in that, The secondary wire feeding mechanism (8) includes an upper limit plate (83), which is fixedly installed on the bottom surface of the sliding connecting plate (73). The bottom surface of the upper limit plate (83) is sequentially and fixedly installed with a secondary wire feeding chamber (81), a tertiary wire feeding chamber (82) and a support base (84) along the wire feeding direction. The bottom surfaces of the secondary wire feeding chamber (81) and the tertiary wire feeding chamber (82) are closely attached to the top surface of the tongue assembly (2), and compressed air is introduced from the top to achieve uniform distribution of the wire bundle in the tongue assembly (2).