A cigarette machine electric iron segmented heating device

Abstract

The application discloses a cigarette machine electric iron segmented heating device and relates to the technical field of cigarette processing. The device comprises an upper seat plate and a lower seat plate. A ceramic heating body is fixedly connected to the lower seat plate. An installation groove is formed in the ceramic heating body. A plurality of ceramic heating pieces are fixedly connected to the inner wall of the installation groove. The ceramic heating pieces are divided into three heating sections. The three heating sections are integrally packaged by ceramic. Each heating section comprises a resistance wire. A thermocouple is fixedly connected to the middle part of each heating section. The device is provided with a plurality of ceramic heating pieces, which are divided into three heating sections. A thermocouple is arranged in the middle part of each heating section. The temperature change of each heating section of the ceramic heating piece is monitored by the thermocouple. The working state of the resistance wire of each heating section is independently controlled. The temperature of the working surface of the heating structure is balanced and stable. The cigarette processing quality is improved.

Description

Technical Field

[0001] This invention relates to the field of cigarette processing technology, specifically a segmented heating device for a cigarette machine soldering iron. Background Technology

[0002] In the cigarette rolling process, the soldering iron plays a crucial role. After the overlap of the cigarette paper rolls is glued and joined, it needs to be dried and ironed flat using a soldering iron. This step is one of the key steps to ensure cigarette quality. The heating element of the soldering iron moves up and down, allowing its working surface to lightly contact the overlap of the cigarette paper rolls, and then uses high temperature to dry the overlap. At the same time, the soldering iron body needs to maintain good contact with the overlap and have a certain amount of compression (such as 0.1mm) to ensure that the heat can be fully transferred to the overlap and dried.

[0003] In the current cigarette rolling and packaging process, the process parameters cannot be compared because the temperature settings of each set of soldering irons in the cigarette rolling machine are different. At the same time, there are problems such as large temperature fluctuations and uneven temperature in different parts of the working surface due to the internal heating rod not being in close contact with the working surface, which in turn affects the quality of cigarettes. Summary of the Invention

[0004] The purpose of this invention is to provide a segmented heating device for a cigarette making soldering iron, in order to solve the problem mentioned in the background art of uneven temperature across the working surface of the heating element, which affects the quality of cigarettes.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A segmented heating structure for a cigarette making soldering iron includes an upper plate and a lower plate arranged in parallel. The upper plate and the lower plate are fixedly connected by mounting bolts. A ceramic heating element is fixedly connected to the lower plate. The ceramic heating element has an internal mounting groove. A plurality of ceramic heating plates are fixedly connected to the inner wall of the mounting groove. The ceramic heating plates are divided into three heating segments. The three heating segments are encapsulated in ceramic as a whole. Each heating segment includes a resistance wire. Power lines are fixedly connected to both ends of the resistance wire. Thermocouples are fixedly connected to the middle of each of the heating segments.

[0007] As a further aspect of the present invention: the bottom of the lower seat plate is provided with a plurality of wire holes, the inner walls of the plurality of wire holes are fixedly connected with wire tubes, and one side of the plurality of wire tubes is provided with a movable groove, the inner wall of the movable groove is engaged with a wire clamp.

[0008] As a further aspect of the present invention: the top surface height of the plurality of ceramic heating elements is higher than the top surface height of the ceramic heating body, and the mounting grooves are all filled with thermally conductive adhesive. The plurality of ceramic heating elements are fixedly connected to each other by thermally conductive adhesive, and thermal insulation adhesive is filled between the lower base plate and the top of the ceramic heating body and the top of the plurality of ceramic heating elements.

[0009] As a further aspect of the present invention, both the upper seat plate and the lower seat plate are made of stainless steel.

[0010] As a further aspect of the present invention: an offset pushing component is provided above the upper seat plate, the offset pushing component includes a mounting frame, a mounting plate is fixedly connected to the bottom of the mounting frame, a limit frame is slidably connected to the middle of the mounting frame, a pushing plate is fixedly connected to the bottom of the limit frame, a driving component for driving the pushing plate to reciprocate is provided above the pushing plate, a docking frame is fixedly connected to the bottom of the pushing plate, and a mounting lug is fixedly connected to the top of the upper seat plate, the docking frame and the mounting lug are fixedly connected.

[0011] As a further aspect of the present invention: the driving component includes two servo motors, and the mounting plate has openings on both sides. The two servo motors are respectively positioned above the two openings. The output ends of the two servo motors are fixedly connected to incomplete gears. The top sides of the push plate have push slots, and the two push slots are respectively positioned corresponding to the positions of the two openings. The two incomplete gears do not mesh with the push slots at the same time.

[0012] As a further aspect of the present invention: an air guide frame is fixedly installed on one side of the lower seat plate, and the bottom of the air guide frame is set as a bent part on the side near the lower seat plate. A plurality of air outlet holes are opened on one side of the bent part. The thickness of the bent part is slightly smaller than the diameter of the cigarette paper tube. A gap is provided between the upper seat plate and the lower seat plate. An air inlet groove is opened on the side of the air guide frame near the gap. A guide fan is fixedly installed on the inner wall of the air guide frame near the air inlet groove. The air delivery direction of the guide fan is towards the inside of the air guide frame.

[0013] As a further aspect of the present invention: a friction pad is fixedly connected to one side of the bottom of the ceramic heating element.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention sets up multiple ceramic heating elements and divides the ceramic heating elements into three heating sections, and then sets thermocouples in the middle of each heating section. The temperature changes of each heating section of the ceramic heating element are monitored by the thermocouples. By independently controlling the working state of the resistance wire of each heating section, the temperature of the working surface of the heating structure is made uniform and stable, thereby improving the quality of cigarette processing.

[0015] This invention uses a pushing component to drive the heating mechanism to reciprocate laterally, and uses pushing friction to drive the cigarette paper tube to rotate, thereby adjusting its posture. This ensures that the paper tube is heated evenly and that the cigarette paper tubes are relatively dispersed, avoiding excessive spacing and deformation caused by mutual compression between the cigarette paper tubes, which would affect the uniformity of heating.

[0016] This invention utilizes a fan to draw air in through the gap between the upper and lower seat plates and then returns it from one side of the bottom surface of the ceramic heating element. This achieves rapid cooling of the bottom surface of the ceramic heating element and the area where the cigarette paper tube is located, improving the flexibility of temperature regulation of the device. The air intake through the gap also enables partial recovery of heat conducted from the upper seat plate to the gap. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the heating structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the ceramic heating plate of the present invention;

[0019] Figure 3 This is a cross-sectional view of the offset pushing component of the present invention;

[0020] Figure 4 This is a schematic diagram of the bottom structure of the heating structure of the present invention;

[0021] Figure 5 This is a cross-sectional schematic diagram of the air guide frame of the present invention;

[0022] Figure 6 This is a schematic diagram of the layout of the heating control system equipment for the heating structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the circuit connection of the heating control system of the heating structure of the present invention.

[0024] In the diagram: 1. Upper base plate; 2. Lower base plate; 3. Ceramic heating element; 301. Power cord; 302. Resistance wire; 303. Thermocouple; 4. Ceramic heating element; 5. Conduit; 6. Wire clamp; 7. Gap; 8. Mounting lug; 901. Mounting bracket; 902. Push plate; 903. Connecting bracket; 904. Limiting bracket; 905. Incomplete gear; 906. Push groove; 907. Adjusting cylinder; 10. Friction pad; 11. Air guide frame; 12. Air guide fan; 13. Air inlet slot; 14. Air outlet; 15. Air guide plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1 In this embodiment of the invention, a segmented heating structure for a cigarette making soldering iron includes an upper plate 1 and a lower plate 2 arranged in parallel. Both the upper plate 1 and the lower plate 2 are made of stainless steel, making the machine body smooth, beautiful, and durable. The upper plate 11 and the lower plate 22 are fixedly connected by mounting bolts. A ceramic heating element 4 is fixedly connected to the lower plate 2. The ceramic heating element 4 has an internal mounting groove, and a plurality of ceramic heating plates 3 are fixedly connected to the inner wall of the mounting groove. Please refer to [link to relevant documentation]. Figure 2 The ceramic heating element 3 is divided into three heating sections, which are encapsulated in ceramic as a whole. Each heating section includes a resistance wire 302, and power lines 301 are fixedly connected to both ends of the resistance wire 302. Thermocouples 303 are fixedly connected to the middle of several heating sections. Thermocouples 303 monitor the temperature changes of each heating section of the ceramic heating element 3 and provide real-time feedback to the temperature control module. This application uses a ceramic heating body 4 as the heating element, and adopts multi-point heating and multi-point temperature measurement, which makes the temperature of the working surface of the heating body more uniform and facilitates the adjustment of the temperature of each unit to make the settings consistent. At the same time, the independent setting of the soldering iron also makes it easier to install and maintain.

[0027] The ceramic heating element 3 is 305mm long, 12.5mm high, and 4mm wide. Each heating section is 100mm long. A groove with a length of 305mm, a height of 10mm, and a width of 4mm is machined inside the ceramic heating body 4 for embedding and installing the ceramic heating element 3. The groove is filled with thermally conductive adhesive. Several ceramic heating elements 3 are fixedly connected by thermally conductive adhesive. Thermal insulation adhesive is filled between the lower base plate 2 and the top of the ceramic heating body 4, as well as between the tops of several ceramic heating elements 3. This reduces the heat conduction to the base and thus reduces heat loss.

[0028] Please see Figure 1 The bottom of the lower plate 2 has several wire holes, and the inner walls of the wire holes are fixedly connected with wire tubes 5. Each side of the wire tubes 5 has a movable groove, and the inner wall of the movable groove is engaged with a wire clamping buckle 6. The wire clamping buckle 6 is used to press and limit the power cord 301 during the wire threading process to prevent the wire from being pulled and broken during the wire threading process.

[0029] Please see Figure 3An offset pushing assembly is provided above the upper seat plate 1. The offset pushing assembly includes a mounting frame 901. An adjusting cylinder 907 is provided on the top of the mounting frame 901. The adjusting cylinder 907 drives the mounting frame 901 to move up and down, thereby driving the heating structure to move up and down as a whole to ensure that it can fit in contact with the joint of the tobacco strip to be heated, so that the heat can be fully transferred to the joint and dry it. A mounting plate is fixedly connected to the bottom of the mounting frame 901. A limit frame 904 is slidably connected to the middle of the mounting frame 901. A pushing plate 902 is fixedly connected to the bottom of the limit frame 904. A driving assembly for driving the pushing plate 902 to reciprocate is provided above the pushing plate 902. A docking frame 903 is fixedly connected to the bottom of the 02, and a mounting lug 8 is fixedly connected to the top of the upper seat plate 1. The docking frame 903 and the mounting lug 8 are fixedly connected. By setting the pushing component, the heating mechanism is driven to reciprocate laterally. The pushing friction drives the cigarette paper tube to rotate, thereby adjusting its posture and making the paper tube heat evenly. At the same time, it can make the cigarette paper tubes relatively dispersed, avoiding the gaps being too close and the cigarette paper tubes squeezing each other, which would cause deformation and affect the uniformity of heating. In order to make the pushing operation of the push plate stably drive the cigarette paper tube to rotate, a friction pad 10 is fixedly connected to one side of the bottom of the ceramic heating body 4, thereby increasing the resistance between the friction pad 10 and the cigarette paper tube.

[0030] The drive assembly includes two servo motors. Openings are provided on both sides of the mounting plate, with the two servo motors corresponding to the top of each opening. Incomplete gears 905 are fixedly connected to the output ends of the two servo motors. Pushing slots 906 are provided on both sides of the top of the push plate 902, corresponding to the positions of the two openings. The two servo motors rotate in opposite directions, and the two incomplete gears 905 do not simultaneously mesh with the pushing slots 906. This allows the two servo motors to alternately drive the push plate 902 to move in different directions, achieving the reciprocating motion of the push plate 902 and thus reciprocating the pushing of the heating structure.

[0031] Please see Figure 4 and Figure 5A guide frame 11 is fixedly installed on one side of the lower seat plate 2. The bottom of the guide frame 11, near the lower seat plate 2, is set as a bent section. Several air outlets 14 are opened on one side of the bent section. The thickness of the bent section is slightly smaller than the diameter of the cigarette paper tube. A gap 7 is provided between the upper seat plate 1 and the lower seat plate 2. An air inlet groove 13 is opened on the side of the guide frame 11 near the gap 7. A guide fan 12 is fixedly installed on the inner wall of the guide frame 11 near the air inlet groove 13. The air delivery direction of the guide fan 12 is towards the inside of the guide frame 11. When the device is started, air is drawn in through the gap 7 between the upper seat plate 1 and the lower seat plate 2, and then returned through the bottom side of the ceramic heating element 4. This achieves rapid cooling of the bottom surface of the ceramic heating element 4 and the area where the cigarette paper tube is located, improving the flexibility of temperature regulation of the device. The air intake through the gap 7 also achieves partial recovery of the heat conducted from the upper seat plate 1 to the gap 7. A guide plate 15 is fixedly connected to the bottom of the inner wall of the air guide frame 11. The top surface of the guide plate 15 is inclined to facilitate the airflow to be blown out to the air outlet 14.

[0032] In use, this invention controls the heating control system to raise the temperature of the resistance wire 302, thereby heating the ceramic heating element 3 and the ceramic heating body 4. The regulating cylinder 907 lowers the entire heating mechanism, causing the bottom surface of the ceramic heating body 4 to contact the tobacco strip joint. Heat conduction quickly dries the joint. Then, the offset pushing component is activated, using two servo motors to drive two incomplete gears 905. When one incomplete gear 905 engages with the pushing groove 906, it pushes the pushing plate to move laterally. Then, as the incomplete gear... After the fully engaged gear 905 rotates until it disengages from the pusher plate 902, the other partially engaged gear 905 meshes with the pusher groove 906 on the other side, thereby pushing the pusher plate 902 to the other side. This cyclical action achieves the reciprocating pushing of the pusher plate 902, which in turn achieves the reciprocating pushing of the heating structure. Through pushing friction, the cigarette paper tube is driven to rotate as a whole, thereby adjusting its posture and ensuring that the entire paper tube is heated evenly. At the same time, it can disperse the individual cigarette paper tubes, avoiding mutual compression between the cigarette paper tubes that could cause deformation and affect the uniformity of heating.

[0033] This application also provides a heating control system for a segmented heating structure of a soldering iron in a cigarette making machine. Please refer to [link to relevant documentation]. Figure 6 and Figure 7 This soldering iron heating system uses solid-state relays (SSRs), Omron's latest modular high-precision temperature control unit EJ1N-TC4A-QQ and EJ1C-EDUA-NFLK terminal units, and forms a control system through 485 communication, Siemens S7-200 SMART and Kunlun Tongtai touch screen to achieve precise PID control.

[0034] The advantages of this control system are: the temperature can be adjusted at any time according to the working conditions, the real-time heating temperature can keep up with the set value within 10 seconds, and the stable temperature error is within 1 degree Celsius; the heating time of each heating segment from 0 to 250 degrees Celsius is no more than 30 seconds, the temperature rise is rapid, the temperature compensation is fast, the heating temperature is high, the heat uniformity is good, the resistance-temperature change is linear, and the temperature can be easily controlled by controlling the resistance or voltage; the thermal efficiency is high and energy saving (the unit heat power consumption is 20% to 30% lower than that of PTC); the insulation performance is good, the surface is safe and non-conductive, it can withstand a withstand voltage test of 4500V / 1S without breakdown, and the leakage current is <0.5MA; the lifespan is long, there is no power decay after long-term use, and the heating element is resistant to acids, alkalis and other corrosive substances.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A segmented heating device for a cigarette rolling machine soldering iron, characterized in that, The device includes an upper seat plate (1) and a lower seat plate (2) arranged in parallel. A ceramic heating element (4) is fixedly connected to the lower seat plate (2). A friction pad (10) is fixedly connected to one side of the bottom of the ceramic heating element (4). An installation groove is provided inside the ceramic heating element (4). Several ceramic heating plates (3) are fixedly connected to the inner wall of the installation groove. The ceramic heating plates (3) are divided into three heating sections. Each heating section includes a resistance wire (302). Power lines (301) are fixedly connected to both ends of the resistance wire (302). A thermocouple (303) is fixedly connected to the middle of each of the three heating sections. An offset pushing component is provided above the upper seat plate (1). The offset pushing component includes a mounting frame (901). A mounting plate is fixedly connected to the bottom of the mounting frame (901). A limit frame (904) is slidably connected to the middle of the mounting frame (901). A push plate (902) is fixedly connected to the bottom of the limit frame (904). A driving component for driving the push plate (902) to reciprocate is provided above the push plate (902). A docking frame (903) is fixedly connected to the bottom of the push plate (902). An installation lug (8) is fixedly connected to the top of the upper seat plate (1). The docking frame (903) is fixedly connected to the installation lug (8). The drive assembly includes two servo motors. The mounting plate has openings on both sides. The two servo motors are respectively positioned above the two openings. The output ends of the two servo motors are fixedly connected to incomplete gears (905). The push plate (902) has push slots (906) on both sides of its top. The two incomplete gears (905) do not mesh with the push slots (906) at the same time.

2. The segmented heating device for a cigarette rolling machine soldering iron according to claim 1, characterized in that, The bottom of the lower seat plate (2) is provided with several wire holes, and the inner walls of the several wire holes are fixedly connected with wire tubes (5).

3. The segmented heating device for a cigarette rolling machine soldering iron according to claim 2, characterized in that, Each of the several conduits (5) has a movable groove on one side, and the inner wall of the movable groove is engaged with a wire clamp (6).

4. The segmented heating device for a cigarette rolling machine soldering iron according to claim 1, characterized in that, The mounting groove is filled with thermally conductive adhesive, and several ceramic heating elements (3) are fixedly connected by thermally conductive adhesive. The space between the lower base plate (2) and the top of the ceramic heating element (4) is filled with thermally insulating adhesive.

5. The segmented heating device for a cigarette rolling machine soldering iron according to claim 1, characterized in that, The ceramic heating element (3) is 305mm long, 12.5mm high, and 4mm wide; each heating segment is 100mm long.

6. The segmented heating device for a cigarette rolling machine soldering iron according to claim 1, characterized in that, Both the upper seat plate (1) and the lower seat plate (2) are made of stainless steel.

7. The segmented heating device for a cigarette rolling machine soldering iron according to claim 1, characterized in that, A guide frame (11) is fixedly installed on one side of the lower seat plate (2). The bottom of the guide frame (11) is set as a bent part on the side near the lower seat plate (2). Several air outlets (14) are opened on one side of the bent part. A gap (7) is provided between the upper seat plate (1) and the lower seat plate (2). An air inlet groove (13) is opened on the side of the guide frame (11) near the gap (7). A guide fan (12) is fixedly installed on the inner wall of the guide frame (11) near the air inlet groove (13).

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