Constraining and heating device for composite film paper for filter stick

Abstract

The bundling and heating device comprises a conical barrel, a conical forming cavity and first electric heating parts, the conical barrel and the conical forming cavity are coaxially arranged together in a sleeved mode to form a double-layer structure, the first electric heating parts are evenly distributed in the double-layer structure, and the composite film paper for the filter stick enters from the large end of the conical forming cavity and is arranged in the conical forming cavity. And outputting from the small end. After being compressed by the two-stage forming wheel, the composite film paper for the filter stick enters the bundling heating device to be preheated and bundled, the composite film paper is softened by heating, the hardness and irregular stress of the composite film paper are reduced, and the plasticity of the composite film paper is improved, so that the composite film paper is more regular and more uniform in pore distribution when entering a subsequent forming link; and the circumference and roundness indexes of the filter stick meet the process standard.

Description

Technical Field

[0001] The present application relates to the technical field of low-temperature non-combustible cigarettes, and more specifically, to a bundling and heating device for composite membrane paper for filter rods. Background Art

[0002] Low-temperature, non-combustible cigarettes are gaining popularity. They have a cooling section at the mouthpiece to lower the temperature of the smoke. This cooling section is typically made of a bundled paper material. The paper material is bundled into a rod-like shape, creating numerous pores within the rod for smoke to pass through, which cools the smoke.

[0003] At present, a composite membrane paper covered with a multi-stage phase change membrane has appeared on the market. However, the hardness of the composite membrane paper combined with the multi-stage phase change membrane will increase. After it is converged using the original convergence method, the pores inside it for the flue gas to pass through will become uneven, resulting in a poor cooling effect on the flue gas temperature. The isotropy of the composite membrane paper cannot be guaranteed during the convergence and pulling process, resulting in the circumference and roundness indicators of the filter rod with the finished composite membrane paper not meeting the process standards. Utility Model Content

[0004] The present application provides a bundling and heating device for composite membrane paper for filter rods. After being compressed by two-stage forming wheels, the composite membrane paper for filter rods enters the bundling and heating device for preheating and bundling. The composite membrane paper is softened by heating, its hardness and irregular stress are reduced, and its plasticity is improved, so that the composite membrane paper is more regular when entering the subsequent forming link, and the pore distribution is more uniform. The filter rod circumference and roundness indicators meet the process standards.

[0005] The present application provides a converging and heating device for composite membrane paper for filter rods, comprising a conical cylinder, a conical forming cavity and a first electric heating component. The conical cylinder and the conical forming cavity are coaxially sleeved together to form a double-layer structure. The first electric heating component is evenly arranged in the double-layer structure. The composite membrane paper for the filter rod enters from the large end of the conical forming cavity and is output from the small end.

[0006] Preferably, at least one pore group is provided along the conical surface of the conical cylinder, and each pore group includes a plurality of pores that are evenly arranged along the circumference of the conical cylinder and pass through the inside and outside;

[0007] The air hole is connected to the high-pressure gas generating component through an air pipe, and a valve is provided on the air pipe.

[0008] Preferably, the high-pressure gas generating components of different gas hole groups independently control the gas pressure and temperature levels.

[0009] Preferably, an independent first electric heating component is formed between the end of the conical cylinder and the pore group, and between the pore groups.

[0010] Preferably, different first electric heating components independently adjust the temperature levels.

[0011] Preferably, a tubular electric heating inner core extending along the central axis is provided in the conical forming cavity, and a second electric heating component is provided in the electric heating inner core;

[0012] A connecting piece is provided between the middle part of the electric heating inner core and the inner wall of the tapered forming cavity.

[0013] Preferably, the connecting member is plate-shaped.

[0014] Preferably, the cross section of the electric heating core is circular, polygonal or five-pointed star-shaped.

[0015] Preferably, the electric heating core and the connecting piece are modular components.

[0016] Preferably, the first electric heating component is a ring-shaped electric heating coil.

[0017] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0019] Figure 1 This is a cross-sectional view of the bundling and heating device for the composite membrane paper for filter rods provided in this application;

[0020] Figure 2 for Figure 1 A cross-sectional view of the gas heating component near the large end;

[0021] Figure 3-5 Structural diagrams of different embodiments of the modular components provided in this application. DETAILED DESCRIPTION

[0022] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0023] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0024] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0025] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0026] The present application provides a bundling and heating device for composite membrane paper for filter rods. After being compressed by two-stage forming wheels, the composite membrane paper covered with a multi-stage phase change membrane enters the bundling and heating device for preheating and bundling. The composite membrane paper is softened by heating, and its hardness and irregular stress are reduced without reaching its first-stage phase change temperature point, thereby improving its plasticity. This makes the composite membrane paper more regular when entering the subsequent forming link, and its pore distribution more uniform, making the filter rod circumference and roundness easier to control, and the filter rod circumference and roundness indicators meet the process standards. In addition, the dual application of gas heating and electric heating can ensure the stability of the temperature in the cavity of the conical cylinder, so that the composite membrane paper can be heated evenly under high-speed operation. Moreover, the segmented first electric heating component can realize independent gradient temperature control, and the heating temperature and method can be selected according to the type of fragrance applied to meet more production needs.

[0027] like Figure 1 As shown, the converging and heating device for the composite membrane paper for filter rods provided in the present application includes a conical cylinder 1, a conical forming cavity 2 and a first electric heating component. The conical cylinder 1 and the conical forming cavity 2 are coaxially sleeved together to form a double-layer structure. The first electric heating component is evenly arranged in the double-layer structure. The composite membrane paper for filter rods (including composite membrane paper covered with a multi-stage phase change membrane) compressed and converged by two-stage forming wheels enters from the large end of the conical forming cavity 2 and is output from the small end. The composite membrane paper is preheated and converged. The composite membrane paper material is softened by heating, and its hardness and irregular stress are reduced, thereby creating better mechanical properties of the membrane paper material for the next step of cigarette tongue compression and cigarette gun channel forming.

[0028] As an embodiment, the first electric heating component is a wound heating wire.

[0029] Preferably, if Figure 1 As shown, the conical cylinder 1 is provided with at least one pore group along its conical surface. Each pore group comprises a plurality of pores that extend through the interior and exterior of the conical cylinder 1 and are evenly spaced along its circumference. Each pore is connected to a high-pressure gas generating component (e.g., a combination of a heating chamber and an air pump) via an air pipe. A valve is provided on the air pipe to control the flow of high-pressure heated gas. The high-pressure heated gas flows from the outside of the conical cylinder 1 into the conical forming cavity 2. Specifically, the purified air filtered through the filter chamber is heated in the heating chamber. The heated air then flows through the air pump to the conical forming cavity 2, helping to rapidly heat the conical forming cavity.

[0030] As an embodiment, the temperature of the heated gas ranges from 40°C to 120°C.

[0031] Preferably, the high-pressure gas generating components of different pore groups independently control the gas pressure and temperature levels to adapt to different processing requirements.

[0032] Based on the above, due to the obstruction of the pore group, an independent first electric heating component is formed between the end of the conical cylinder 1 and the pore group, and between the pore groups.

[0033] exist Figure 1 In the embodiment shown, two air hole groups are provided on the conical surface of the conical cylinder 1, a first air hole group 6 and a second air hole group 7. Figure 2 The structure of the second pore group 7 is shown, which includes eight pores evenly distributed around the circumference: 71, 72, 73, 74, 75, 76, 77, 78. Due to the obstruction of the first pore group 6 and the second pore group 7, three first electric heating components: 3, 4, 5 are formed on the conical cylinder 1.

[0034] As an embodiment, the first electric heating component is a ring-shaped electric heating coil that wraps around the conical cylinder 1.

[0035] Preferably, different first electric heating components independently adjust the temperature levels so that the entire conical cylinder can be heated in sections and grades to meet different processing requirements.

[0036] As an embodiment, the temperature of the first electric heating component ranges from 40°C to 120°C.

[0037] Preferably, if Figure 1 and 2 As shown, a tubular electric heating core 9 extending along the central axis is provided in the conical forming cavity 2, and a second electric heating component is provided in the electric heating core 9. A connector 8 is provided between the middle of the electric heating core 9 and the inner wall of the conical forming cavity 2, so that the electric heating core 9 is connected to the conical cylinder 1.

[0038] As an embodiment, the cross section of the electric heating core 9 is circular (eg Figure 3 shown), polygons ( Figure 4 pentagonal) or pentagram (as shown in Figure 5 shown).

[0039] Preferably, the connecting member 8 is in the shape of a plate, which can minimize the impact on the bundling of the composite film paper while playing a connecting role.

[0040] Preferably, the electric heating core 9 and the connector 8 are modular components, and the modular components of the electric heating core 9 with different shapes can be replaced according to product design requirements.

[0041] In the convergence heating device of the present application, the electric heating component plays the main role of temperature control, and the gas heating component plays an auxiliary role of rapid temperature increase and maintaining temperature uniformity in the cavity.

[0042] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A bundling and heating device for composite membrane paper for filter rods, characterized in that: It includes a conical cylinder, a conical forming cavity and a first electric heating component. The conical cylinder and the conical forming cavity are coaxially sleeved together to form a double-layer structure. The first electric heating component is evenly distributed in the double-layer structure. The composite membrane paper for the filter rod enters from the large end of the conical forming cavity and exits from the small end.

2. The device for heating and converging composite membrane paper for filter rods according to claim 1, characterized in that: At least one air hole group is provided along the conical surface of the conical cylinder, and each air hole group includes a plurality of air holes that are evenly arranged along the circumference of the conical cylinder and pass through the inside and outside; The air hole is connected to the high-pressure gas generating component through an air pipe, and a valve is provided on the air pipe.

3. The device for heating and converging composite membrane paper for filter rods according to claim 2, characterized in that: The high-pressure gas generating components of different air hole groups independently control the air pressure and temperature levels.

4. The device for heating and converging composite membrane paper for filter rods according to claim 2, characterized in that: An independent first electric heating component is formed between the end of the conical cylinder and the air hole group, and between the air hole groups.

5. The device for heating and converging composite membrane paper for filter rods according to claim 4, characterized in that: Different first electric heating components independently adjust the temperature levels.

6. The bundling and heating device for composite membrane paper for filter rod according to claim 1 or 2, characterized in that: A tubular electric heating inner core extending along the central axis is provided in the conical forming cavity, and a second electric heating component is provided in the electric heating inner core; A connecting piece is provided between the middle portion of the electric heating inner core and the inner wall of the tapered forming cavity.

7. The device for heating and converging composite membrane paper for filter rods according to claim 6, characterized in that: The connecting piece is in a plate shape.

8. The device for heating and converging composite membrane paper for filter rods according to claim 6, characterized in that: The cross section of the electric heating core is circular, polygonal or five-pointed star.

9. The device for heating and converging composite membrane paper for filter rods according to claim 8, characterized in that: The electric heating core and the connecting piece are modular components.

10. The device for heating and converging composite membrane paper for filter rods according to claim 4, characterized in that: The first electric heating component is a ring-shaped electric heating coil.

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