A heating device and heating method for a production line of melamine panels

Abstract

The present invention discloses a heating device and a heating method for a production line of melamine panels. The heating device includes a transmission mechanism, a heat conduction mechanism and a heating mechanism. The transmission mechanism includes a transmission seat and a rotating shaft; the heat conduction mechanism includes a heat conduction adhesive layer and a transmission wheel, and the heating mechanism includes a heating unit and a mounting rack. It can realize rapid heating during the transportation of melamine panels on the production line. The soft heat conduction adhesive layer can be closely attached to the melamine panel, improving the effect of heat conduction, so that the melamine panel can be fully and evenly heated; the heating method includes obtaining the temperatures of the heat conduction adhesive layer, the heating unit and the melamine panel in real time, adjusting the preset value according to the temperature, reducing the influence of the ambient temperature on the heating temperature, and controlling the temperature of the melamine panel within a reasonable range, thereby improving the success rate of the bending process of the melamine panel, reducing the generation of waste products, and lowering the production cost.

Description

Technical Field

[0001] The present invention relates to the field of melamine panel processing equipment, and more specifically, to a heating device and a heating method for a production line of melamine panels. Background Art

[0002] A melamine board is a board made by subjecting a base material and a melamine panel to high temperature and high pressure. The base material is mainly hard boards such as particle boards, medium density fiberboards, and plywoods. The melamine panel is a device panel formed by soaking paper or film with various colors or textures in a melamine resin adhesive and then drying to a certain degree of curing. For a base material with a flat surface, the melamine panel is usually directly covered on the surface of the base material and then pressed. However, for some base materials with right angles or bevel angles, such as uneven boards like door frames and decorative lines, the melamine panel needs to be heated first to make it fully softened and then bent into a shape matching the base material before further pressure bonding can be carried out.

[0003] The existing panel heating methods mainly include heating with a hot air gun, steam heating, or direct contact heating with a heating plate. However, these methods have certain problems. For example, the heating temperature of the hot air gun is unstable; water droplets appear in steam heating, the heating time is short, and the efficiency is not high; the contact between the heating plate and the melamine panel is not sufficient, the heating efficiency is low, and the panel is easily scratched. The above heating methods cannot fully heat the melamine panel to make it fully softened to meet the bending requirements, which results in the melamine panel being prone to bursting during the bending process, and a large number of defective products are thus produced.

[0004] Therefore, in view of the above situation, how to improve the production line of melamine panels so that the panel can be fully heated has become an important technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] The present invention discloses a heating device for a production line of melamine panels, which is used on an operation production line. The heating device includes a transmission mechanism, a heat conduction mechanism, and a heating mechanism.

[0006] A transmission shaft is provided on the operation production line. The transmission mechanism includes a transmission seat and a rotating shaft. The transmission seat is installed on the operation production line, and it includes a power input end and a power output end. The power input end is connected to the transmission shaft, and the power output end is connected to the rotating shaft.

[0007] The heat conduction mechanism includes a heat conduction adhesive layer and a transmission wheel. The transmission wheel is connected to the rotating shaft, and the heat conduction adhesive layer is provided on the outer surface of the transmission wheel.

[0008] The heating mechanism includes a heating unit and a mounting rack. The heating unit is arranged on the mounting rack and is oriented towards the direction of the thermal conductive adhesive layer. The mounting rack is connected to the operation assembly line.

[0009] Preferably, the heating unit is a stainless steel heating plate, which is in an arc structure, and the center of the arc structure coincides with the center of the driving wheel.

[0010] Preferably, multiple groups of heating units are provided, and the multiple groups of heating units are arranged side by side on the mounting rack.

[0011] Preferably, the mounting rack includes a vertical rod, a connecting rod, a cross rod, a telescopic rod, and a mounting plate; a clamping seat one is provided on the vertical rod, a clamping seat two is provided at one end of the cross rod, and a locking bolt is provided at the other end; one end of the connecting rod is connected to the clamping seat one, and the other end is connected to the clamping seat two; the inside of the cross rod is a hollow structure, one end of the telescopic rod is inserted into the inside of the cross rod, and the end of the locking bolt abuts against the telescopic rod; the other end of the telescopic rod is connected to the mounting plate, and the mounting plate is connected to the heating unit.

[0012] Preferably, the material of the thermal conductive adhesive layer is high-temperature resistant silica gel.

[0013] Preferably, multiple groups of thermal conductive mechanisms are provided, and the multiple groups of thermal conductive mechanisms are arranged side by side and coaxially arranged on the transmission shaft. The multiple groups of thermal conductive mechanisms are arranged opposite to the heating mechanism.

[0014] Preferably, the heating unit includes an outer cover and multiple infrared heating tubes. The cross section of the outer cover is in an arc structure, and the multiple infrared heating tubes are arranged at intervals on the inner side surface of the outer cover.

[0015] Preferably, the driving wheel is in a barrel-shaped structure, and the center of the bottom of the barrel-shaped structure is fixedly connected to the rotating shaft; an auxiliary heating component is further included, which is matched with the driving wheel. The auxiliary heating component includes a bracket and several heating rods. One end of the bracket is connected to the operation assembly line, and the other end extends into the barrel-shaped structure. The heating rods are connected to the other end of the bracket.

[0016] Preferably, a first temperature sensor for measuring the temperature of the heating unit, a second temperature sensor for measuring the temperature of the thermal conductive adhesive layer, and a third temperature sensor for measuring the temperature of the melamine panel are further included; the first temperature sensor is electrically connected to a temperature controller, and the temperature controller is electrically connected to the heating unit; the second temperature sensor and the third temperature sensor are electrically connected to the temperature controller.

[0017] A working method of a heating device for a melamine panel production assembly line includes the following steps:

[0018] Step S1: Set the heating temperature and heating rate of the heating unit, set the first temperature preset value of the heating unit, set the second temperature preset value, the third temperature preset value and the adjustment amplitude ratio of the thermal conductive adhesive layer, and set the fourth temperature preset value and the fifth temperature preset value of the melamine panel;

[0019] Step S2: The heating unit is started and heated at the set value;

[0020] Step S3: The first temperature sensor measures the real-time temperature of the heating unit to obtain the first real-time temperature value, and transmits the first real-time temperature value to the temperature controller; the second sensor measures the real-time temperature of the thermal conductive adhesive layer and transmits the real-time temperature signal to the temperature controller; the third sensor measures the real-time temperature of the melamine panel and transmits the real-time temperature signal to the temperature controller;

[0021] Step S4: When the real-time temperature of the thermal conductive adhesive layer reaches the set second temperature preset value, the temperature controller controls the heating unit to cut off the power; when the real-time temperature of the thermal conductive adhesive layer is lower than the third temperature preset value, the temperature controller controls the heating unit to be powered on;

[0022] Step S5: When the real-time temperature of the heating unit is lower than the first temperature preset value, the temperature controller controls the heating unit to be powered on;

[0023] Step S6: When the real-time temperature of the melamine panel is higher than the fourth temperature preset value, the temperature controller issues an update instruction, and the value of the second temperature preset value is reduced according to the adjustment amplitude ratio, and the reduced value is used to replace the second preset value in Step S4; when the real-time temperature of the melamine panel is lower than the fifth temperature preset value, the temperature controller issues an update instruction, and the value of the third temperature preset value is increased according to the adjustment amplitude ratio, and the increased value is used to replace the third preset value in Step S4;

[0024] Repeat Steps S3 - S6 until the heating of all melamine panels is completed.

[0025] The heating device for the melamine panel production line provided by the present invention, by setting a heating device on the production line, using a transmission shaft to drive a transmission wheel and a thermal conductive adhesive layer, and at the same time using a heating unit to heat the thermal conductive adhesive layer, so that while the thermal conductive adhesive layer rotates and contacts the melamine panel, it transfers its own heat to the melamine panel to achieve the heating of the melamine panel; the heating device of the present invention can realize the rapid heating of the melamine panel during the transportation on the production line, the soft thermal conductive adhesive layer can be closely attached to the melamine panel, improving the effect of heat conduction, enabling the melamine panel to be fully and evenly heated, improving the panel heating efficiency, thereby increasing the success rate of the bending process of the melamine panel, reducing the generation of waste products, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic diagram of the production line of the melamine panel of the present invention;

[0028] Figure 2 It is a structural diagram of the heating device for the production line of the melamine panel of the present invention;

[0029] Figure 3 It is a top view structural diagram of the mounting frame of the embodiment of the heating device for the production line of the melamine panel of the present invention;

[0030] Figure 4 It is Figure 3 the side structural diagram;

[0031] Figure 5 It is a schematic structural diagram of the driving wheel and the auxiliary heating device of the embodiment of the heating device for the production line of the melamine panel of the present invention;

[0032] Figure 6 It is a schematic structural diagram of the outer cover and the infrared heating tube of the embodiment of the heating device for the production line of the melamine panel of the present invention;

[0033] Figure 7 It is Figure 6 the partial sectional view;

[0034] Figure 8 It is a schematic flow chart of the working method of a heating device for a production line of a melamine panel of the present invention

[0035] Among them, the marks in each drawing are as follows:

[0036] 1 - working production line, 2 - transmission mechanism, 21 - transmission seat, 22 - rotating shaft, 3 - heat conduction mechanism, 31 - heat conduction adhesive layer, 32 - driving wheel, 4 - heating mechanism, 41 - heating unit, 42 - mounting frame, 421 - vertical rod, 422 - connecting rod, 423 - cross bar, 424 - telescopic rod, 425 - mounting plate, 426 - clamping seat one, 427 - clamping seat two, 5 - transmission shaft, 6 - outer cover, 7 - infrared heating tube, 8 - auxiliary heating component, 81 - bracket, 82 - heating rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The present invention discloses a heating device and a heating method for a production line of melamine panels. A supporting plate and a supporting groove are arranged outside the supporting seat to support the aluminum rod during shearing. The supporting groove moves together with the supporting seat during shearing, so that the aluminum rod is always supported during shearing, discharging and unloading, enabling the aluminum rod to be transported smoothly and avoiding the aluminum rod from falling and injuring personnel and equipment.

[0038] Next, in combination with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and detailedly described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present invention.

[0039] Please refer to Figures 1 to 8 , the present invention provides a heating device for a production line of melamine panels, which is used on the operation line 1. The heating device includes a transmission mechanism 2, a heat conduction mechanism 3 and a heating mechanism 4;

[0040] A transmission shaft 5 is provided on the operation line 1; the transmission mechanism 2 includes a transmission seat 21 and a rotating shaft 22; the transmission seat 21 is installed on the operation line 1, which includes a power input end and a power output end, wherein the power input end is connected to the transmission shaft 5, and the power output end is connected to the rotating shaft 22;

[0041] The heat conduction mechanism 3 includes a heat conduction glue layer 31 and a transmission wheel 32. The transmission wheel 32 is connected to the rotating shaft 22, and the heat conduction glue layer 31 is arranged on the outer surface of the transmission wheel 32;

[0042] The heating mechanism 4 includes a heating unit 41 and a mounting bracket 42. The heating unit 41 is arranged on the mounting bracket 42 and is arranged in the direction towards the heat conduction glue layer 31. The mounting bracket 42 is connected to the operation line 1.

[0043] In the embodiment of the present invention, the heating device is used on the operation line 1 for melamine panel processing. A transmission shaft 5 is arranged on the operation line 1. The function of the transmission shaft 5 is to drive the transmission mechanism 2 in the heating device. When multiple groups of heating devices are arranged on the operation line 1 at the same time, the transmission shaft 5 is in transmission connection with the transmission mechanisms 2 in each heating device to achieve the effect of simultaneously driving each transmission wheel 32 and the heat conduction glue layer 31, so that multiple groups of heating devices can be arranged to heat the melamine panel at the same time, so as to accelerate the conveying speed of the melamine panel and improve the heating effect.

[0044] The heating process of this technical solution is as follows. First, the heating mechanism 4 is activated to generate heat. The heating mechanism 4 transfers the heat to the thermal conductive adhesive layer 31. Utilizing the soft texture of the thermal conductive adhesive layer 31, when the thermal conductive adhesive layer 31 rotates, it is in close contact with one side of the melamine panel and transfers the heat to the melamine panel. In this embodiment, the transmission seat 21 can serve as a power conversion tool to transfer the power of the transmission shaft 5 on the operation pipeline 1 to the rotating shaft 22, and then drive the transmission wheel 32 to rotate. The transmission wheel 32 drives the thermal conductive adhesive layer 31 to rotate together. During the rotation of the thermal conductive adhesive layer 31, each part of it will rotate through the area where the heating unit 41 is located. When the heating unit 41 works, the heat it emits will heat a partial area of the thermal conductive adhesive layer 31 in front of it. The thermal conductive adhesive layer 31 continuously rotates through the heating unit 41, and finally the temperature of the entire thermal conductive adhesive layer 31 rises. When the temperature of the thermal conductive adhesive layer 31 rises and stabilizes within the preset temperature range, the thermal conductive adhesive layer 31 comes into contact with the melamine panel. At this time, due to its soft texture, the thermal conductive adhesive layer 31 can make full contact with the melamine panel. Compared with the direct contact between the heating plate and the panel, the gap between the thermal conductive adhesive layer 31 and the panel is smaller, and the heat transfer effect is better. At the same time, the soft material can also avoid scratching the melamine panel.

[0045] The heating process of this embodiment is divided into two parts: First, the heating unit 41 heats the thermal conductive adhesive layer 31. During this process, the heating unit 41 is arranged beside the heat conduction mechanism 3. The heating unit 41 is not in direct contact with the thermal conductive adhesive layer 31, but there is a certain gap reserved between the heating unit 41 and the thermal conductive adhesive layer 31. Such a design avoids the heating unit 41 affecting the rotation of the thermal conductive adhesive layer 31 and at the same time avoids the local overheating of the thermal conductive adhesive layer 31, resulting in unstable output temperature of the thermal conductive adhesive layer 31.

[0046] Secondly, the thermal conductive adhesive layer 31 heats the melamine panel. During this process, the thermal conductive adhesive layer 31 uses a soft material that can withstand high temperatures, which can not only ensure close fitting with the panel but also avoid scratching the panel. The thermal conductive adhesive layer 31 is used to contact the melamine panel and transfer its own heat to the melamine panel to increase the temperature of the melamine panel.

[0047] The working principle of the present invention is as follows: The heating unit 41 continuously heats the adjacent thermal conductive adhesive layer 31 to raise the temperature of the thermal conductive adhesive layer 31 to an appropriate temperature, such as heating to 200 - 250 degrees. Then, the thermal conductive adhesive layer 31 is used to contact the melamine panel to achieve the effect of heating the melamine panel.

[0048] Further, on the production line 1 of the melamine panel, when multiple heating devices are simultaneously set to continuously heat the panel, in order to conveniently adjust the positions of the heating units 41 in batches to control the distance between the heating units 41 and the thermal conductive adhesive layer 31, multiple adjacent heating units 41 can be arranged on the same mounting rack 42. The mounting rack 42 can be a crossbeam and adjustable connectors with adjustable height. The crossbeam is connected to the production line 1 by the adjustable connectors, and the adjustable connectors can be studs or screws. In this way, when it is necessary to quickly adjust the height positions of multiple heating units, only the height position of the crossbeam needs to be adjusted, that is, by adjusting the adjustable connectors to control the height of the crossbeam, the synchronous adjustment of multiple heating units 41 can be achieved, improving the adjustment efficiency.

[0049] Preferably, the heating unit 41 is a stainless steel heating plate, and the stainless steel heating plate has an arc structure, and the center of the arc structure coincides with the center of the driving wheel 32.

[0050] In this embodiment, the heating unit 41 uses a stainless steel heating plate. After the stainless steel heating plate is energized, it continuously heats up. After raising the temperature of the thermal conductive adhesive layer, by adjusting the heating power of the stainless steel heating plate, the heat loss of the thermal conductive adhesive layer can be effectively supplemented, so that the lost heat and the supplemented heat reach a balanced state, ensuring that the surface temperature of the thermal conductive adhesive layer is stable within a certain range. In addition, the heating power of the stainless steel heating plate can be adjusted according to the production speed to meet the requirements of the automated production line of the melamine board.

[0051] In order to make the shape of the stainless steel heating plate fit better with the wheel-shaped structure of the thermal conductive adhesive layer 31, in this embodiment, the stainless steel heating plate is set to an arc structure, which can well wrap the arc-shaped area on the surface of the thermal conductive adhesive layer 31, and the heating range is larger than that of an ordinary flat heating plate, which helps to improve the heating efficiency.

[0052] Preferably, multiple groups of the heating units 41 are provided, and multiple groups of the heating units 41 are arranged side by side on the mounting rack 42. In the embodiment, the number of the heating units 41 can be adjusted according to the width of the thermal conductive adhesive layer 31. For example, when the width of the thermal conductive adhesive layer 31 is relatively large, a design in which multiple groups of the heating units 41 are connected side by side on the mounting rack 42 can be selected. In this way, the temperature of each heating unit 41 can be independently controlled, and the heating-up speed of each heating unit 41 is relatively fast, which is beneficial to quickly raising the surface temperature of the thermal conductive adhesive layer 31.

[0053] Preferably, the mounting bracket 42 includes a vertical rod 421, a connecting rod 422, a cross rod 423, a telescopic rod 424 and a mounting plate 425; a clamping seat one 426 is provided on the vertical rod 421, a clamping seat two 427 is provided at one end of the cross rod 423, and a locking bolt is provided at the other end; one end of the connecting rod 422 is connected to the clamping seat one 426, and the other end is connected to the clamping seat two 427; the inside of the cross rod 423 is a hollow structure, one end of the telescopic rod 424 is inserted into the inside of the cross rod 423, and the end of the locking bolt abuts against the telescopic rod 424; the other end of the telescopic rod 424 is connected to the mounting plate 425, and the mounting plate 425 is connected to the heating unit 41.

[0054] The mounting bracket 42 can be used to adjust the position of the heating unit 41 so as to adjust the position of the heating unit 41, achieve the adjustment of the gap between the heating unit 41 and the thermal conductive adhesive layer 31, and thus control the heating effect. In this embodiment, the vertical rod 421 is used to support the entire mounting bracket 42, and the bottom of the vertical rod 421 is connected to the frame on the production line 1; a clamping seat one 426 is provided on the rod body of the vertical rod 421, and one end of the connecting rod 422 is clamped by the clamping seat one 426, and the other end of the connecting rod 422 is connected to the clamping seat two 427 on the cross rod 423, and then a telescopic telescopic rod 424 is provided on the cross rod 423. Through the above structural design, by raising or lowering the clamping seat one 426, the height position of the heating unit 41 in the vertical direction can be controlled; by extending or retracting the telescopic rod 424, the front and back position adjustment of the heating unit 41 in the horizontal direction can be controlled; through the rotational cooperation between the clamping seat two 427 and the connecting rod 422, the inclination angle of the heating unit 41 can also be adjusted to meet the heating requirements of the thermal conductive adhesive layer 31 with different shapes and sizes.

[0055] Preferably, the material of the thermal conductive adhesive layer 31 is high-temperature resistant silica gel. In this embodiment, the thermal conductive adhesive layer 31 is made of high-temperature resistant silica gel. High-temperature resistant silica gel refers to a silica gel material with better heat resistance than ordinary silica gel. The operating range of ordinary silica gel is between 150 degrees and 200 degrees, while the operating temperature of high-temperature resistant silica gel is between 200 and 300 degrees Celsius, and it has the advantages of high tensile strength, tear resistance, and good resilience, and can well meet the requirements of the present technical solution for heat conduction and full contact with the panel.

[0056] Preferably, multiple groups of the heat conduction mechanisms 3 are provided, and the multiple groups of heat conduction mechanisms 3 are arranged in parallel and coaxially arranged on the transmission shaft 5. The multiple groups of heat conduction mechanisms 3 are arranged opposite to the heating mechanism 4. In this technical solution, the number of the heat conduction mechanisms 3 can be set according to the size of the melamine panel, and the multiple groups are arranged in parallel and then coaxially installed on the transmission shaft 5.

[0057] Preferably, the heating unit 41 includes a housing 6 and a plurality of infrared heating tubes 7. The cross-section of the housing 6 is in an arc structure, and the plurality of infrared heating tubes 7 are arranged at intervals on the inner side surface of the housing 6.

[0058] For the heat conduction mechanism 3 with a relatively large size, in this embodiment, a housing 6 is arranged on the outer side of the heat conduction mechanism 3. The housing 6 adopts an arc structure to match the shape of the heat conduction adhesive layer 31, and infrared heating tubes 7 are arranged on the inner side of the housing 6 to heat the heat conduction adhesive layer 31 by using the infrared heating tubes 7. Please refer to Figure 6 , Figure 6 which is a structural schematic diagram of the technical solution. The housing is supported and fixed by the mounting bracket below. Flaps bent inward are respectively arranged at both ends of the housing, and protective sheets for blocking the ends of the infrared heating tubes are respectively arranged on both sides. The flaps and the protective sheets play a role in reducing heat loss and protection.

[0059] Through the above structural design, when the plurality of infrared heating tubes 7 work simultaneously, the inner part of the housing 6 can be kept uniformly heated, and the heating effect on the heat conduction adhesive layer 31 is better. Even for a large-sized heat conduction adhesive layer 31, the heating requirement can be met by increasing the number of infrared heating tubes 7.

[0060] Preferably, the transmission wheel 32 is in a barrel structure, and the center of the bottom of the barrel structure is fixedly connected to the rotating shaft 22; an auxiliary heating component 8 that cooperates with the transmission wheel 32 is further included. The auxiliary heating component 8 includes a bracket 81 and a plurality of heating rods 82. One end of the bracket 81 is connected to the operation assembly line 1, and the other end extends into the barrel structure. The heating rods 82 are connected to the other end of the bracket 81. Through the above structural design, the heating rods heat the inner side of the transmission wheel 32, avoid the heat of the heat conduction adhesive layer 31 from flowing out from the transmission wheel 32, keep the temperature of the heat conduction adhesive layer 31 within a stable range, and reduce temperature fluctuations.

[0061] Preferably, a first temperature sensor for measuring the temperature of the heating unit 41, a second temperature sensor for measuring the temperature of the heat conduction adhesive layer 31, and a third temperature sensor for measuring the temperature of the melamine panel are further included; the first temperature sensor is electrically connected to a temperature controller, and the temperature controller is electrically connected to the heating unit 41; the second temperature sensor and the third temperature sensor are electrically connected to the temperature controller. Through the above structural design, the temperatures of the heating unit 41, the heat conduction adhesive layer 31, and the melamine panel can be detected in real time. The temperature controller collects temperature data and adjusts temperature parameters in a timely manner according to the settings, so that the entire heating device can maintain a stable temperature output, avoid excessive temperature fluctuations of the melamine panel, and affect the subsequent processing quality.

[0062] A working method of a heating device for a production line of melamine panels, comprising the following steps:

[0063] Step S1: Set the heating temperature and heating rate of the heating unit 41, set the first temperature preset value of the heating unit 41, set the second temperature preset value, the third temperature preset value and the adjustment amplitude ratio of the thermal conductive adhesive layer 31, and set the fourth temperature preset value and the fifth temperature preset value of the melamine panel;

[0064] Step S2: The heating unit 41 is started and heated at the set value;

[0065] Step S3: The first temperature sensor measures the real-time temperature of the heating unit 41 and obtains the first real-time temperature value, and transmits the first real-time temperature value to the temperature controller; the second sensor measures the real-time temperature of the thermal conductive adhesive layer 31 and transmits the real-time temperature signal to the temperature controller; the third sensor measures the real-time temperature of the melamine panel and transmits the real-time temperature signal to the temperature controller;

[0066] Step S4: When the real-time temperature of the thermal conductive adhesive layer 31 reaches the set second temperature preset value, the temperature controller controls the heating unit 41 to cut off the power. When the real-time temperature of the thermal conductive adhesive layer 31 is lower than the third temperature preset value, the temperature controller controls the heating unit 41 to energize;

[0067] Step S5: When the real-time temperature of the heating unit 41 is lower than the first temperature preset value, the temperature controller controls the heating unit 41 to energize;

[0068] Step S6: When the real-time temperature of the melamine panel is higher than the fourth temperature preset value, the temperature controller issues an update instruction, and the value of the second temperature preset value is reduced according to the adjustment amplitude ratio, and the reduced value is used to replace the second preset value in Step S4; when the real-time temperature of the melamine panel is lower than the fifth temperature preset value, the temperature controller issues an update instruction, and the value of the third temperature preset value is increased according to the adjustment amplitude ratio, and the increased value is used to replace the third preset value in Step S4;

[0069] Repeat steps S3 - S6 until the heating of all melamine panels is completed.

[0070] The following is an explanation in combination with the working method of the heating device:

[0071] Set the working parameters of each component according to production needs, and the heating unit 41 is started and begins to heat the thermal conductive adhesive layer 31.

[0072] Then, the real-time temperature information of the heating unit 41 is obtained through the first temperature sensor, the real-time temperature information of the thermal conductive adhesive layer 31 is obtained through the second sensor, and the real-time temperature information of the melamine panel is obtained through the third sensor. The temperature controller receives this temperature information and performs control according to a preset program.

[0073] When the real-time temperature of the thermal conductive adhesive layer 31 reaches the set second temperature preset value, at this time, the temperature of the thermal conductive adhesive layer 31 is too high and needs to be controlled. The temperature controller issues an instruction to cut off the power supply of the heating unit 41 and stop heating. When the temperature of the thermal conductive adhesive layer 31 drops and reaches the third temperature preset value, at this time, the thermal conductive adhesive layer 31 needs to increase the temperature in time. The temperature controller controls the heating unit 41 to be powered on, and the heating unit 41 starts and begins to heat the thermal conductive adhesive layer 31, so that the temperature of the thermal conductive adhesive layer 31 starts to gradually increase. By controlling the on / off of the heating unit 41, the real-time temperature of the thermal conductive adhesive layer 31 is maintained within the set range.

[0074] After the heating unit 41 is turned off, after a period of heat dissipation, its own temperature drops. In order to avoid the situation that the temperature of the heating unit 41 cannot rise in time when it starts, once the real-time temperature of the heating unit 41 is lower than the first temperature preset value, the temperature controller controls the heating unit 41 to be powered on, and the temperature of the heating unit 41 rises and is disconnected again after triggering other temperature preset values. Through the above design, the situation that the subsequent heating time is too long due to the temperature drop after the heating unit 41 is powered off is avoided.

[0075] When the real-time temperature of the melamine panel is higher than the fourth temperature preset value, the temperature controller issues an update instruction, and the value of the second temperature preset value is reduced according to the adjustment amplitude ratio, and the reduced value is used to replace the second preset value in step S4; when the real-time temperature of the melamine panel is lower than the fifth temperature preset value, the temperature controller issues an update instruction, and the value of the third temperature preset value is increased according to the adjustment amplitude ratio, and the increased value is used to replace the third preset value in step S4.

[0076] When affected by the environment, the temperature of the melamine panel is prone to fluctuate. Therefore, this technical solution sets the temperature range of the melamine panel between the fourth temperature preset value and the fifth temperature preset value. When the temperature exceeds the fourth temperature preset value, the value of the second temperature preset value is reduced, so that the highest temperature of the thermal conductive adhesive wheel is reduced, and the heating unit 41 is disconnected earlier to prevent the temperature of the thermal conductive adhesive wheel from rising further. In this way, the highest temperature of the melamine panel is automatically controlled.

[0077] Conversely, when the temperature of the melamine panel is lower than the fifth temperature preset value, the value of the third temperature preset value is increased, so that the heating unit 41 is started in time to prevent the temperature of the heat-conducting rubber wheel from further dropping. In this way, the minimum temperature of the melamine panel is automatically controlled.

[0078] After multiple rounds of repeated operation, the temperature of the melamine panel is finally controlled within a reasonable range.

[0079] The heating device for the melamine panel production line provided by the present invention sets a heating device on the production line, uses a transmission shaft to drive a transmission wheel and a heat-conducting rubber layer, and at the same time uses a heating unit to heat the heat-conducting rubber layer. In this way, while the heat-conducting rubber layer rotates and contacts the melamine panel, it transfers its own heat to the melamine panel to achieve heating of the melamine panel. The heating device of the present invention can realize rapid heating of the melamine panel during the transportation on the production line. The soft heat-conducting rubber layer can be closely attached to the melamine panel, improving the heat conduction effect, enabling the melamine panel to be fully and evenly heated, enhancing the panel heating efficiency, thereby increasing the success rate of the bending process of the melamine panel, reducing the generation of waste products, and lowering the production cost.

[0080] The above has introduced in detail the heating device for the melamine panel production line provided by the present invention. For those of ordinary skill in the art, according to the idea of the embodiments of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A heating device for a production line of melamine panels, which is used on an operating production line (1), and is characterized in that, The heating device includes a transmission mechanism (2), a heat conduction mechanism (3) and a heating mechanism (4); A transmission shaft (5) is provided on the operation assembly line; the transmission mechanism includes a transmission seat (21) and a rotating shaft (22); the transmission seat is installed on the operation assembly line, which includes a power input end and a power output end, wherein the power input end is connected to the transmission shaft, and the power output end is connected to the rotating shaft; The heat conduction mechanism includes a heat conduction glue layer (31) and a transmission wheel (32), the transmission wheel is connected to the rotating shaft, and the heat conduction glue layer is arranged on the outer surface of the transmission wheel; The heating mechanism includes a heating unit (41) and a mounting bracket (42), the heating unit is arranged on the mounting bracket and is arranged towards the direction of the heat conduction glue layer, and the mounting bracket is connected to the operation assembly line; The mounting bracket includes a vertical rod (421), a connecting rod (422), a cross rod (423), a telescopic rod (424) and a mounting plate (425); a clamping seat one (426) is arranged on the vertical rod, a clamping seat two (427) is arranged at one end of the cross rod, and a locking bolt is arranged at the other end; one end of the connecting rod is connected to the clamping seat one, and the other end is connected to the clamping seat two; the inside of the cross rod is a hollow structure, one end of the telescopic rod is inserted into the inside of the cross rod, and the end of the locking bolt abuts against the telescopic rod; The other end of the telescopic rod is connected to the mounting plate, and the mounting plate is connected to the heating unit.

2. The heating device for the production line of melamine panels according to claim 1, characterized in that, The heating unit is a stainless steel heating plate, the stainless steel heating plate is in an arc structure, and the center of the arc structure coincides with the center of the transmission wheel.

3. The heating device for the production line of melamine panels according to claim 2, characterized in that, A plurality of groups of heating units are provided, and the plurality of groups of heating units are arranged in parallel on the mounting bracket.

4. The heating device for the production line of melamine panels according to claim 1, characterized in that, The material of the heat conduction glue layer is high-temperature resistant silica gel.

5. The heating device for the production line of melamine panels according to claim 1, characterized in that, A plurality of groups of heat conduction mechanisms are provided, the plurality of groups of heat conduction mechanisms are arranged in parallel and coaxially arranged on the transmission shaft, and the plurality of groups of heat conduction mechanisms are arranged opposite to the heating mechanism.

6. The heating device for the production line of melamine panels according to claim 1, characterized in that, The heating unit includes an outer cover (6) and a plurality of infrared heating tubes (7), the cross section of the outer cover is in an arc structure, and the plurality of infrared heating tubes are arranged at intervals on the inner side surface of the outer cover.

7. The heating device for the production line of melamine panels according to claim 1, characterized in that, The transmission wheel is in a barrel-shaped structure, and the center of the barrel bottom of the barrel-shaped structure is fixedly connected to the rotating shaft; an auxiliary heating assembly (8) matched with the transmission wheel is further included, the auxiliary heating assembly includes a bracket (81) and a plurality of heating rods (82), one end of the bracket is connected to the operation assembly line, the other end extends into the barrel-shaped structure, and the heating rod is connected to the other end of the bracket.

8. The heating device for the production line of melamine panels according to any one of claims 1 to 7, characterized in that, A first temperature sensor for measuring the temperature of the heating unit, a second temperature sensor for measuring the temperature of the heat conduction glue layer and a third temperature sensor for measuring the temperature of the melamine panel are further included; the first temperature sensor is electrically connected to a temperature controller, and the temperature controller is electrically connected to the heating unit; the second temperature sensor and the third temperature sensor are electrically connected to the temperature controller.

9. A working method of a heating device for a production line of melamine panels, which is realized by using the heating device for a production line of melamine panels described in claim 8 above, characterized in that, Including the following steps: Step S1: Set the heating temperature and heating rate of the heating unit, set the first temperature preset value of the heating unit, set the second temperature preset value, the third temperature preset value and the adjustment amplitude ratio of the thermal conductive adhesive layer, and set the fourth temperature preset value and the fifth temperature preset value of the melamine panel; Step S2: The heating unit is started and heated at the set value; Step S3: The first temperature sensor measures the real-time temperature of the heating unit and obtains the first real-time temperature value, and transmits the first real-time temperature value to the temperature controller; the second sensor measures the real-time temperature of the thermal conductive adhesive layer and transmits the real-time temperature signal to the temperature controller; the third sensor measures the real-time temperature of the melamine panel and transmits the real-time temperature signal to the temperature controller; Step S4: When the real-time temperature of the thermal conductive adhesive layer reaches the set second temperature preset value, the temperature controller controls the heating unit to power off. When the real-time temperature of the thermal conductive adhesive layer is lower than the third temperature preset value, the temperature controller controls the heating unit to power on; Step S5: When the real-time temperature of the heating unit is lower than the first temperature preset value, the temperature controller controls the heating unit to power on; Step S6: When the real-time temperature of the melamine panel is higher than the fourth temperature preset value, the temperature controller issues an update instruction, and the value of the second temperature preset value is reduced according to the adjustment amplitude ratio, and the reduced value is used to replace the second preset value in Step S4; when the real-time temperature of the melamine panel is lower than the fifth temperature preset value, the temperature controller issues an update instruction, and the value of the third temperature preset value is increased according to the adjustment amplitude ratio, and the increased value is used to replace the third preset value in Step S4; Repeat Steps S3 - S6 until all melamine panels are heated.

Images