Production and processing device and manufacturing method of a one-time formed composite cooling filter rod

Abstract

The present invention relates to the field of cigarette filter rods, and particularly to a production and processing device and a manufacturing method for a one-time formed composite cooling filter rod. To solve the problems of high flue gas temperature of existing cigarette products and high composite cost and complex process in the cooling section and paper tube wall in the existing product technology. It includes a conveying device for conveying the cooling section in the filter rod, a feeding device for feeding the cooling section, a paper tube forming device, and a cutting device. It adopts an intermittent conveying method during the paper tube forming process to intermittently and synchronously compound the cooling section into the hollow paper tube wall at a fixed length, and then uses a cutting device to perform fixed-length cutting to form the composite cooling filter rod at one time, manufacturing a composite cooling filter rod with a fixed-length hollow paper tube as the main body and the cooling section filled in the middle section of the paper tube. The device has a simple structure and low composite cost of the composite cooling filter rod.

Description

Technical Field

[0001] The present invention relates to the field of cigarette filter rods, and particularly to a production and processing device and a manufacturing method for a one - time - formed composite cooling filter rod. Background Art

[0002] During the burning of traditional cigarettes, the burning of tobacco produces a high amount of heat, and the burning temperature of cigarettes can reach 600°C - 900°C, resulting in an increase in the temperature of the mainstream smoke. When sucking, although the unburned tobacco at the rear end and the filter tip have a condensing and cooling effect on the mainstream smoke entering the filter tip, there is still a hot and spicy feeling in the mouth.

[0003] In recent years, many researchers have focused on studying how to reduce the temperature of the smoke. Existing new - type cigarettes that can reduce the temperature of the smoke add a reflux section or a cooling element between the tobacco section and the filter tip section, increasing the flow distance of the smoke in the filter tip, so that the hot air flow exchanges heat, transfers heat or undergoes a phase change with the air flow partition and the inner wall of the smoke reflux section, thereby achieving the purpose of reducing the temperature of the smoke. The cooling filter rods of the above - mentioned reflux section or cooling element that play a cooling role are mostly used in cigarette filter tips in a multi - section composite manner, but the composite cost of the existing technology is high and the process is complex. Summary of the Invention

[0004] The purpose of the present invention is to provide a production and processing device for a one - time - formed composite filter rod, which has a simple device structure, reasonable design and low composite cost.

[0005] Another purpose of the present invention is to provide a manufacturing method for a one - time - formed composite filter rod. By using an intermittent conveying method to synchronously and discontinuously compound the cooling section into a paper tube blank in a fixed - length manner in one - time forming, large - scale continuous production can be achieved.

[0006] The embodiments of the present invention are implemented as follows:

[0007] A production and processing device for a one - time - formed composite cooling filter rod provided by an embodiment of the present invention includes a conveying device for conveying the cooling section in the filter rod, a feeding device for feeding the cooling section, a paper tube forming device, and a cutting device. The feeding device, the paper tube forming device, and the cutting device are sequentially arranged on the conveying line of the conveying device. The outlet of the feeding device is opposite to the inlet of the paper tube forming device. The conveying device can convey the cooling section into the inner wall of the paper tube formed in the paper tube forming device, and perform fixed - length cutting with the cutting device.

[0008] In a preferred embodiment of the present invention, the above - mentioned paper tube forming device includes a mold for forming a paper tube. The mold is a hollow metal tube, and the wall thickness of the hollow metal tube is less than 1 mm.

[0009] In a preferred embodiment of the present invention, an opening is provided on the above-mentioned hollow metal tube, and the blanking device is provided with a blanking outlet, the blanking outlet is opposite to the opening, and the length of the cooling section matches the length of the opening.

[0010] In a preferred embodiment of the present invention, the above-mentioned cooling section is a cylinder, and the diameter of the cylinder is the same as the inner diameter of the hollow metal tube.

[0011] In a preferred embodiment of the present invention, it further includes a pulley and a base paper for the paper tube. The base paper for the paper tube forms a paper tube wall under the action of the pulley and wraps around the outer wall of the hollow metal tube.

[0012] In a preferred embodiment of the present invention, the above-mentioned conveying device is a pneumatic conveying device or a mechanical conveying device.

[0013] In a preferred embodiment of the present invention, the above-mentioned conveying device belongs to an intermittent conveying device, and the above-mentioned blanking device belongs to an intermittent blanking device.

[0014] In a preferred embodiment of the present invention, it includes a PCL control terminal for controlling the speed, which includes a first control point provided on the conveying device, a second control point provided on the blanking device, a third control point provided on the cutting device, and a fourth control point provided on the paper tube forming device. The conveying speed of the first control point matches the blanking speed of the second control point, and the cutting speed of the third control point is controlled by the paper tube forming speed of the fourth control point and the length of the required composite cooling filter rod.

[0015] The embodiment of the present invention also provides a manufacturing method for a one-time formed composite cooling filter rod, which includes the following steps:

[0016] The cooling section enters the paper tube forming device from the blanking outlet;

[0017] The base paper for the paper tube forms a paper tube wall in the paper tube forming device;

[0018] Under the action of the conveying device, the cooling section is transported into the paper tube wall;

[0019] The cutting device provided at the end of the paper tube forming device performs fixed-length cutting on it according to the length of the required composite cooling filter rod to form a one-time formed composite cooling filter rod.

[0020] In a preferred embodiment of the present invention, the formed composite filter rod is composed of the above-mentioned cooling section and a hollow paper tube. The length of the composite filter rod is 30 - 50 mm, the length of the cooling section is 5 - 20 mm, and the high-temperature flue gas enters the cooling section from the hollow paper tube and exchanges heat to achieve a cooling effect.

[0021] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: The production and processing device and manufacturing method of a one-time formed composite filter rod adopted by the present invention use an intermittent conveying method during the paper tube forming process to synchronously and intermittently and fixedly lengthwise compound the filter rod cooling section into the empty paper tube wall in a one-time forming manner, manufacturing a composite cooling filter rod with a fixed-length hollow paper tube as the main body and a cooling section filled in the middle section of the paper tube, which can achieve a good effect of cooling the flue gas, reducing the temperature by 30-80 °C compared with the existing method. Moreover, the device has a simple structure, is ingeniously and reasonably designed, has a lower cost than the traditional composite process, and can realize large-scale continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings to be used. Obviously, the drawings in the following description are only some embodiments of the present invention, so they should not be regarded as limiting the protection scope. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Structural schematic diagram of the production and processing device of the one-time formed composite filter rod provided by the embodiment of the present invention;

[0024] Figure 2 Structural schematic diagram of the one-time formed composite filter rod provided by the embodiment of the present invention;

[0025] Figure 3 Structural schematic diagram of a hollow metal pipe pulley provided by the embodiment of the present invention;

[0026] Figure 4 Structural schematic diagram of a cutting device provided by the embodiment of the present invention.

[0027] Reference numerals: 100 - Production and processing device of the composite cooling filter rod; 110 - Conveying device; 120 - Feeding device; 130 - Paper tube forming device; 140 - Cutting device; 150 - Cooling section; 160 - Composite cooling filter rod; 111 - Extrusion device; 112 - Extrusion part; 113 - Push rod; 121 - Feeding outlet; 131 - Pulley; 132 - Transmission belt; 133 - Paper tube base paper; 134 - Hollow metal pipe; 135 - Opening; 141 - Guide block; 142 - Slide block; 143 - Second cylinder; 144 - Mounting seat; 145 - Driving motor; 146 - Blade; 147 - Adjusting screw; 148 - Handle; 151 - First empty tube; 152 - Second empty tube; 153 - Paper tube wall. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present invention, it should be noted that the terms "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "arrangement" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0034] Embodiment 1

[0035] As Figure 1 shown, the production and processing device 100 of the one-time formed composite cooling filter rod includes a conveying device 110 for conveying the cooling section 150 in the filter rod, a feeding device 120 for feeding the cooling section 150, a paper tube forming device 130, and a cutting device 140. The feeding device 120, the paper tube forming device 130, and the cutting device 140 are sequentially arranged on the conveying line of the conveying device 110.

[0036] Specifically, the blanking device 120 includes a blanking bin, buffer baffles, cylinders, and a blanking outlet 121. Two buffer baffles are arranged in the inner cavity of the blanking bin from top to bottom. The buffer baffles are movably connected to the blanking bin. There are two cylinders, which are respectively fixed on the bin wall of the blanking bin, and the positions are adapted to the buffer baffles. The piston rods of the cylinders are connected to the buffer baffles. The arrangement of the buffer baffles and the cylinders forms a sealed space in the blanking bin, buffers the cooling section 150, and realizes sealed and intermittent blanking. The size of the blanking outlet 121 is preferably set to only allow one cooling section 150 to fall out.

[0037] Further, as Figure 3 shown, the paper tube forming device 130 includes a paper tube mold. The paper tube mold is a hollow metal tube 134. The wall of the hollow metal tube 134 should be thin enough, and its material is preferably high-strength steel pipe, which has high strength and is not easy to deform. The wall thickness of the hollow metal tube 134 is less than 1 mm, which reduces the gap between the obtained paper tube wall 153 and the cooling section 150. An opening 135 is provided on the hollow metal tube 134. The position of the opening 135 is opposite to the position of the blanking outlet 121, which ensures that the cooling section 150 can fall into the hollow metal tube 134 from the blanking outlet 121. The inner diameter of the hollow metal tube 134 is the same as the diameter of the cooling section 150, which also reduces the gap between the paper tube wall 153 and the cooling section 150.

[0038] The conveying device 110 can be a mechanical conveying device or a pneumatic conveying device. In this embodiment, it is preferably a mechanical conveying device, which has low operating cost, high efficiency, is easy to control, and is suitable for various automated production line transports. The mechanical conveying device includes an extrusion device 111. The extrusion device 111 is composed of a push rod 113 and an extrusion member 112. The push rod 113 is a spring-type push rod. The push rod 113 and the extrusion member 112 are integrally formed. When the cooling section 150 does not fall into the hollow metal tube 134, the spring-type push rod 113 is in an extrusion state. When the cooling section 150 enters the hollow metal tube 134 from the opening 135, the extrusion member 112 is in direct contact with the cooling section 150, and the push rod 113 conveys the cooling section 150 in the hollow metal tube 134. After being conveyed to a fixed length position, the push rod 113 returns to its original state.

[0039] As Figure 1 and Figure 3As shown, the paper tube forming device 130 is a spiral tube winding machine, which can transfer the workpiece to be processed and has the function of both rotating and moving the workpiece to be processed along the axis, and can realize continuous processing and continuous supply. The paper tube forming device 130 includes a paper rack part, a gluing part and a tube winding device. The paper rack part is used to provide a rewinding device for the base paper of the composite filter rod paper tube wall 153. Each paper rack can hold multiple paper rolls, and the number of paper racks can be determined according to the number of layers of the paper tube base paper 133 required by the customer. The multi-layer paper tube base paper 133 is glued by the gluing part and made uniform by scraping the glue and then reaches the hollow metal tube 134, and then reaches the transmission belt 132 after spiral winding. There are various gluing methods, such as single-sided gluing, double-sided gluing and pouring gluing. In this embodiment, double-sided gluing is preferably used, and the gluing thickness can be adjusted by a scraper.

[0040] Further, the tube winding device mainly includes a frame and a machine head. The machine head part is installed on the pallet of the frame bed. Two belt pulleys 131 symmetrically arranged with respect to the hollow metal tube 134 are installed on the pallet and connected to the pallet by a dovetail groove. A lead screw, a nut and a hand wheel for moving the belt pulley 131 are installed in the pallet to adjust the forward and backward movement of the belt pulley 131. The tightness of the transmission belt 132 can be adjusted by the lead screw and the hand wheel. It is more convenient to replace the transmission belt 132 and the hollow metal tube 134, and the belt winding condition can be adjusted according to different pipe diameters. The belt pulleys 131 are symmetrically installed on both sides of the hollow metal tube 134, and a transmission belt 132 is wound thereon. The winding method of the transmission belt 132 preferably adopts a complete belt, which is wound around the belt pulleys 131 on both sides and adopts a double-lead winding method on the hollow metal tube 134, and the joint of the belt is twisted in space. After the transmission belt 132 is adjusted, the two belt pulleys 131 apply force symmetrically to the hollow metal tube 134, and the force is uniform, so that the hollow metal tube 134 will not be deformed.

[0041] Further, a speed-regulating motor is included in the paper tube forming device 130. As a power source, it transmits power to the two belt pulleys 131, so that the two belt pulleys 131 rotate in opposite directions. Under the action of the transmission belt 132, the power generated by the friction between the belt pulley 131 and the transmission belt 132 drives the paper tube base paper 133 to rotate and move forward on the hollow metal tube 134, forming a hollow paper tube wall 153. It runs smoothly, has low noise, small vibration, simple structure and is convenient for maintenance.

[0042] As Figure 4As shown in the figure, the cutting device 140 is provided at the end of the paper tube forming device 130. When the conveying device 110 conveys the cooling section 150 into the hollow paper tube wall 153, it is used to complete the fixed-length cutting of the composite cooling filter rod 160. The cutting device 140 includes a guiding block 141. A slider 142 is slidably arranged on the guiding block 141 perpendicular to the transmission direction of the hollow paper tube wall 153. A supporting seat is fixedly arranged on the slider 142. The slider 142 and the supporting seat form a guiding seat. A second cylinder 143 is arranged on the supporting seat through a mounting seat 144 whose length direction is perpendicular to the conveying direction of the paper tube wall 153. The piston of the second cylinder 143 is connected with a driving motor 145. A blade 146 is fixedly arranged on the output shaft of the driving motor 145. The guiding block 141 is also provided with an adjusting mechanism, including an adjusting screw rod 147 penetrating through the guiding block 141 along the sliding direction of the guiding seat. The adjusting screw rod 147 is threadedly connected with the guiding seat. A handle 148 is rotatably arranged at one end of the adjusting screw rod 147. Therefore, the working principle of the cutting device 140 is as follows: The hollow paper tube wall 153 is conveyed forward by the conveying device 110. The driving device drives the cutting device 140 to move forward synchronously therewith for fixed-length cutting. After cutting is completed, the cutting device 140 stops working. The driving device makes the cutting device 140 return to the initial position and move forward synchronously with the hollow paper tube wall 153 again, and repeats the above process.

[0043] Furthermore, the production and processing device 100 of a one-time formed composite cooling filter rod of the present invention further includes a PCL control end for controlling the speed. The blanking device 120, the conveying device 110, and the cutting device 140 are all intermittent devices. It includes a first control point provided on the conveying device 110, a second control point provided on the blanking device 120, a third control point provided on the cutting device 140, and a fourth control point provided on the paper tube forming device 130. The conveying speed of the first control point matches the blanking speed of the second control point. The cutting speed of the third control point is controlled by the paper tube forming speed of the fourth control point and the length of the required composite cooling filter rod 160. The cutting device 140 has an automatic shutdown function when there is no paper. The fourth control point can well control the driving device and the cutting device 140 to ensure that the lengths of the cut composite cooling filter rods 160 are equal and the cut ends are flush. During cutting, it can be automatically variable-speed and automatically restored under the control of the PCL control end. The entire production and processing device of the one-time formed composite filter rod is linked and adjusted to increase its safety and operability.

[0044] As Figure 2The formed composite cooling filter rod 160 consists of the cooling section 150 and a hollow paper tube. There are a first hollow tube 151 and a second hollow tube 152 at both ends of the cooling section 150 respectively. The length of the composite filter rod is 30 - 50 mm, and the length of the cooling section 150 is 5 - 20 mm. High-temperature flue gas enters the cooling section 150 from the hollow paper tube and exchanges heat to achieve the cooling effect. When the length of the cooling section 150 is 10 mm and the cutting length is 40 mm, that is, the total length of the composite cooling filter rod 160 is 40 mm, the lengths of both the first hollow tube 151 and the second hollow tube 152 are 15 mm on average. The composite cooling filter rod 160 is loaded into a cigarette, and tested on a cigarette-filter rod comprehensive filter material test bench. The measured draw resistance is 280 mmWG. The filter tip temperature is detected on a cigarette temperature detection device, and the flue gas temperature at the filter tip is measured to be 45 °C. When the length of the cooling section 150 is 8 mm and the cutting length is 40 mm, and the lengths of both the first hollow tube 151 and the second hollow tube 152 are 16 mm on average. The composite cooling filter rod 160 is loaded into a cigarette, and tested on a cigarette-filter rod comprehensive filter material test bench. The measured draw resistance is 300 mmWG. The filter tip temperature is detected on a cigarette temperature detection device, and the flue gas temperature at the filter tip is measured to be 50 °C.

[0045] In this embodiment, the operation method and principle of a production and processing device 100 for a one-piece composite cooling filter rod are as described below:

[0046] The base paper of the paper tube is placed on the paper rack part. The base paper of the paper tube is coated with glue by the gluing part and made uniform by scraping the glue, and then reaches the hollow metal tube. After spiral winding, it reaches the driving belt. Driven by the driving belt, the base paper of the paper tube rotates and moves forward and detaches from the hollow metal tube to form a hollow paper tube wall. The cooling section falls from the blanking outlet into the opening of the hollow metal tube of the paper tube forming device. The push rod of the conveying device acts on the cooling section. The blanking speed matches the conveying speed, and it is intermittently conveyed into the hollow paper tube wall formed by the paper tube forming device. The cutting device is arranged at the end of the paper tube forming device, and the composite cooling filter rod is cut to a fixed length according to the paper tube forming speed, and is formed into a composite cooling filter rod with hollow paper tubes at both ends and a cooling section in the middle at one time.

[0047] Embodiment 2

[0048] The production and processing device of a one - time - formed composite cooling filter rod provided in this embodiment is basically similar in structure to the production and processing device of the one - time - formed composite cooling filter rod in the first embodiment. The difference is that the conveying device is a pneumatic conveying device, and the pneumatic conveying device can be further divided into an aspirating pneumatic conveying device and a pressure - type pneumatic conveying device. This embodiment preferably adopts a pressure - type pneumatic conveying device, which has a large conveying pressure and is suitable for long - distance conveying. The pressure - type pneumatic conveying device includes a ventilator and a ventilation duct, and the ventilation duct is connected to the hollow metal tube. Since the diameter of the cooling section is the same as the inner diameter of the hollow metal tube, when the cooling section is located at the opening of the hollow metal tube, the hollow metal tube is in a closed state. After the ventilator is started, the cooling section can be conveyed into the hollow paper tube wall made by the paper tube forming device.

[0049] In summary, during the production and processing of the one - time - formed composite cooling filter rod in the present invention, the cooling section is placed in the feeding device and intermittently falls into the hollow metal tube of the paper tube forming device in coordination with the conveying speed. The conveying device sends the cooling section in the hollow metal tube into the hollow paper tube wall synchronously prepared by the paper tube forming device, and then, in coordination with the paper tube speed, the composite cooling filter rod is cut to a fixed length and formed into a composite cooling filter rod with hollow paper tubes at both ends and a cooling section in the middle at one time. At the same time, the production and processing device of the one - time - formed composite cooling filter rod is simple and easy to obtain, and the operation is convenient.

[0050] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A production and processing device for a one-piece composite cooling filter rod, characterized in that, It includes a conveying device for conveying the temperature reduction section in the filter rod, a blanking device for discharging the temperature reduction section, a paper tube forming device, and a cutting device. The blanking device, the paper tube forming device, and the cutting device are sequentially arranged on the conveying line of the conveying device. The outlet of the blanking device faces the inlet of the paper tube forming device. The conveying device can convey the temperature reduction section into the inner wall of the paper tube formed in the paper tube forming device and perform fixed-length cutting with the cutting device; The paper tube forming device includes a mold for paper tube forming. The mold is a hollow metal tube, and the wall thickness of the hollow metal tube is less than 1 mm; An opening is provided on the hollow metal tube. The blanking device is provided with a blanking outlet. The blanking outlet faces the opening, and the length of the temperature reduction section matches the length of the opening; The blanking device includes: a blanking bin, two buffer baffles, two cylinders, and a blanking outlet. Two buffer baffles are arranged from bottom to top in the inner cavity of the blanking bin. The two cylinders are respectively fixed on the bin wall of the blanking bin. The cylinders are adapted to the positions of the buffer baffles, and the piston rods of the cylinders are connected to the buffer baffles; The diameter of the temperature reduction section is the same as the inner diameter of the hollow metal tube; The production and processing device further includes two belt pulleys and base paper for the paper tube. The belt pulleys are symmetrically installed on both sides of the hollow metal tube. The paper tube forming device further includes a speed regulating motor. By the speed regulating motor, the two belt pulleys rotate in opposite directions. Under the action of the transmission belt, the power generated by the friction between the belt pulley and the transmission belt drives the base paper for the paper tube to rotate and move forward on the hollow metal tube to form a hollow paper tube wall; The production and processing device includes a PCL control terminal for controlling the speed, which includes a first control point provided on the conveying device, a second control point provided on the blanking device, a third control point provided on the cutting device, and a fourth control point provided on the paper tube forming device. The conveying speed of the first control point matches the blanking speed of the second control point. The cutting speed of the third control point is controlled by the paper tube forming speed of the fourth control point and the length of the required composite temperature reduction filter rod.

2. The production and processing device of a one - time - formed composite cooling filter rod according to claim 1, characterized in that, The temperature reduction section is a cylinder.

3. The production and processing device of a one-time formed composite cooling filter rod according to claim 1, characterized in that, The conveying device is a pneumatic conveying device or a mechanical conveying device.

4. The production and processing device of a one-time formed composite cooling filter rod according to claim 1, characterized in that, The conveying device belongs to an intermittent conveying device, and the blanking device belongs to an intermittent blanking device.

5. A manufacturing method of a one-piece composite cooling filter rod, characterized in that, The method is applied to the production and processing device according to any one of claims 1-4. The method includes the following steps: The temperature reduction section enters the paper tube forming device from the blanking outlet; The base paper for the paper tube forms a paper tube wall in the paper tube forming device; Under the action of the conveying device, the temperature reduction section is transported into the paper tube wall; The cutting device provided at the tail end of the paper tube forming device performs fixed-length cutting on it according to the length of the required composite temperature reduction filter rod to form a one-time formed composite temperature reduction filter rod.

6. The manufacturing method of a one-piece composite cooling filter rod according to claim 5, characterized in that, The processed composite filter rod is composed of the temperature reduction section and the hollow paper tube. The length of the composite filter rod is 30-50 mm, and the length of the temperature reduction section is 5-20 mm. High-temperature flue gas enters the temperature reduction section from the hollow paper tube and exchanges heat to achieve the temperature reduction effect.

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