Constant-temperature PVC sheet heating machine

Abstract

The utility model provides a constant temperature PVC (polyvinyl chloride) sheet heating machine, which relates to the technical field of heating machines and comprises a heating box, two groups of mounting racks are fixedly mounted on the outer surface wall of the heating box, a conveying roller is movably inserted between the inner surface walls of one of the two groups of mounting racks, and two isolation racks are fixedly mounted on the inner surface wall of the heating box. The inner surface walls of the two isolation frames are each fixedly connected with a set of infrared heating pipes, and the tops of the two isolation frames are each provided with a set of first mounting holes. According to the utility model, under the interaction of all the components of the device, heat can be uniformly transferred to all parts of the sheet, the PVC sheet is rapidly heated under the assistance of infrared heating, a uniform thermal field is created by hot air circulation, the temperature of the sheet is stabilized, and the temperature rise rate difference of different areas of the sheet is effectively reduced through the cooperative operation of the two components; and the sheet is heated in a constant-temperature state, so that the quality stability and the performance consistency of a product are powerfully ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating machine technical field especially relates to a constant temperature PVC sheet heating machine. BACKGROUND

[0002] PVC sheet is with polyvinyl chloride resin as main raw material, adds plasticizer, stabilizer and so on auxiliary agent, through mixing, calendering or extrusion process is made sheet plastic product, has the characteristics such as insulation, chemical corrosion resistance, and is widely used.

[0003] PVC sheet is in the process of forming processing, bonding compound and surface treatment, usually needs to use heating machine to enhance its plasticity, improve bonding effect and improve surface performance, PVC sheet heating machine can generate resistance heat through electric heating pipe, and efficiently transfers heat to PVC sheet, thereby precisely controls sheet temperature, ensures that the processing process proceeds smoothly, improves product quality.

[0004] But the existing PVC sheet heating machine has the following shortcomings:

[0005] In the prior art, the PVC sheet heating machine heats through the electric heating element, and the heat cannot be uniformly transmitted to each part of the sheet during the transmission and heating process, so that the temperature rising rate of different regions of the sheet is different, leading to the situation that the sheet is locally overheated or insufficiently heated, and further affecting the quality stability and performance consistency of the product.

[0006] Therefore, we propose a constant temperature PVC sheet heating machine to solve the problems in the above background. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a constant temperature PVC sheet heating machine, which utilizes the heat radiation characteristics of the infrared heating pipe to quickly heat the surface of the PVC sheet, and at the same time, the circulating fan assembly promotes the circulation of heat in the heating space through the effects of blowing and guiding, and implements omnidirectional heating on the sheet, so as to solve the problems in the above background.

[0008] In order to achieve the above object, the utility model discloses the following technical scheme: a constant temperature PVC sheet heating machine, including heating box, the outer wall of heating box is fixedly installed with two groups of mounting bracket, the inner wall between one group of two groups of mounting bracket is movably inserted with conveying roller, the inner wall of heating box is fixedly installed with two isolation frames, the inner wall of two isolation frames is all fixedly connected with a group of infrared heating pipe, the top of two isolation frames all is seted up with a group of first mounting hole, the inner wall of two groups of first mounting hole all is fixedly inserted with first circulating fan, the top of two isolation frames all is seted up with a group of second mounting hole, the inner wall of two groups of second mounting hole all is fixedly inserted with second circulating fan, the inner wall of heating box is fixedly installed with temperature sensor, and the outer wall one side of heating box is fixedly installed with electrical control cabinet.

[0009] Preferably, the inner wall between the other group of two groups of mounting brackets is movably inserted with a cooling roller, and the input end of the cooling roller is fixedly communicated with a water inlet pipe.

[0010] Preferably, the input end of the water inlet pipe is fixedly communicated with a circulating pump, and the input end of the circulating pump is fixedly communicated with a connecting pipe.

[0011] Preferably, the input end of the connecting pipe is fixedly communicated with a water tank, and the output end of the cooling roller is fixedly communicated with a water outlet pipe.

[0012] Preferably, the output end of the water outlet pipe is fixedly communicated with a cooling pipe, and the outer wall one side of the water tank is fixedly communicated with the output end of the cooling pipe.

[0013] Preferably, the outer surface wall of the cooling pipe is fixedly sleeved with a heat dissipation fin, and the outer surface wall of the heat dissipation fin is fixedly connected with a fixing frame.

[0014] Preferably, two heat dissipation fans are fixedly inserted into the outer wall one side of the fixing frame.

[0015] Compared with the prior art, the utility model has the advantages and positive effects that,

[0016] 1、In the utility model, through the interaction of each component of the device, the heat radiation characteristics of the infrared heating pipe are utilized to quickly heat the surface of the PVC sheet, at the same time, the circulating fan assembly promotes the circulation of heat in the heating space through the effects of air blowing and air guiding, and the sheet is heated in all directions, so that the heat can be uniformly transmitted to each part of the sheet, the infrared heating helps the PVC sheet to rapidly heat, the hot air circulation creates a uniform heat field, and the temperature of the sheet is stable, and the two work together to effectively reduce the temperature difference of different areas of the sheet, so that the sheet can complete the heating process in a constant temperature state, thereby effectively ensuring the quality stability and performance consistency of the product.

[0017] 2. The utility model discloses, through the interaction of each component of the device, the cooling water circulation flow in the cooling roll, can efficiently carry out heat exchange cooling to the heated PVC sheet, take away the sheet heat and make it cool down and shape, simultaneously, the heat dissipation component can heat dissipation treatment to the cooling water that absorbs heat and temperature rises, make it restore low temperature state, realize recycling, continuously ensure the cooling effect of PVC sheet. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A front structure perspective view of a constant temperature PVC sheet heating machine is provided for the utility model;

[0019] Figure 2 A partial structure section perspective view of the constant temperature PVC sheet heating machine is provided for the utility model;

[0020] Figure 3 A partial structure section perspective split view of the constant temperature PVC sheet heating machine is provided for the utility model;

[0021] Figure 4 A partial structure perspective split view of the constant temperature PVC sheet heating machine is provided for the utility model.

[0022] Legend: 1, heating box, 2, mounting frame, 3, conveying roller, 4, isolation frame, 5, infrared heating pipe, 6, first mounting hole, 7, first circulating fan, 8, second mounting hole, 9, second circulating fan, 10, temperature sensor, 11, electrical control cabinet, 12, cooling roll, 13, water inlet pipe, 14, circulating pump, 15, connecting pipe, 16, water tank, 17, water outlet pipe, 18, cooling pipe, 19, heat dissipation fin, 20, fixing frame, 21, heat dissipation fan. DETAILED DESCRIPTION

[0023] In order to enable the above-mentioned purpose, features and advantages of the utility model to be more clearly understood, the utility model will be further described below in conjunction with the drawings and embodiments. It should be explained that, in the case of no conflict, the embodiments of the application and the features in the embodiments can be combined with each other.

[0024] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiments disclosed in the following disclosure.

[0025] Embodiment 1, as attached Figure 1 - attached Figure 4The utility model provides a technical scheme: a constant temperature PVC sheet heating machine, including heating box 1, the outer surface wall of heating box 1 is fixedly installed with two groups of mounting bracket 2, and the inner surface wall between one group of two groups of mounting bracket 2 is movably inserted with conveying roller 3, and the inner surface wall of heating box 1 is fixedly installed with two isolation racks 4, and the inner surface wall of two isolation racks 4 is all fixedly connected with a group of infrared heating tube 5, and the top of two isolation racks 4 is all set with a group of first mounting hole 6, and the inner surface wall of two groups of first mounting hole 6 is all fixedly inserted with first circulating fan 7, and the top of two isolation racks 4 is all set with a group of second mounting hole 8, and the inner surface wall of two groups of second mounting hole 8 is all fixedly inserted with second circulating fan 9, and the inner surface wall of heating box 1 is fixedly installed with temperature sensor 10, and the outer wall one side of heating box 1 is fixedly installed with electrical control cabinet 11.

[0026] The effect reached by the whole embodiment 1 is that: in the use process, in the equipment operation process, first, start two groups of infrared heating tube 5, and utilize temperature sensor 10 to monitor the temperature change situation inside heating box 1 in real time, accurately control the temperature inside heating box 1 in the set temperature interval, after two groups of infrared heating tube 5 are powered on, a large amount of infrared rays will be generated, these infrared rays heat the front and back of PVC sheet simultaneously through the mode of heat radiation, ensure that the sheet can quickly and preliminarily absorb heat, at this time, start two groups of first circulating fan 7 and two groups of second circulating fan 9, in view of two isolation racks 4, which divide heating box 1 into three areas, after two groups of first circulating fan 7 are started, heat is delivered to the upper and lower isolation areas, then, through the action of two groups of second circulating fan 9, the heat in the isolation area is sent back to the heating area, to form hot air circulation in the heating area, in this way, it can ensure that the PVC sheet receives heat all-round and uniformly in the conveying process, and infrared heating can make the PVC sheet absorb heat rapidly, quickly reach a high temperature, and hot air circulation heating can build a uniform heat environment on the surface of the sheet, further supplement heat, make the sheet temperature more stable, the cooperative operation mode of infrared heating and hot air circulation heating greatly helps to improve the overall heating efficiency, significantly shorten the heating time, and can effectively guarantee the heating quality of the PVC sheet, reduce the problems such as sheet deformation and unstable quality caused by uneven temperature distribution.

[0027] Embodiment 2, as Figures 2-4As shown, the inner wall between the other group of two groups of mounting frame 2 movably inserted with cooling roller 12, the input end of cooling roller 12 fixedly connected with the water inlet pipe 13, the input end of water inlet pipe 13 fixedly connected with the circulating pump 14, the input end of circulating pump 14 fixedly connected with the connecting pipe 15, the input end of connecting pipe 15 fixedly connected with the water tank 16, the output end of cooling roller 12 fixedly connected with the water outlet pipe 17, the output end of water outlet pipe 17 fixedly connected with the cooling pipe 18, and the outer wall of water tank 16 is fixedly connected with the output end of cooling pipe 18, the outer wall of cooling pipe 18 is fixedly sleeved with the heat dissipation fin 19, the outer wall of heat dissipation fin 19 is fixedly connected with the fixed frame 20, and the outer wall of fixed frame 20 is fixedly inserted with two heat dissipation fans 21.

[0028] The effect of the whole embodiment 2 is that: the heated sheet is in contact with the surface of cooling roller 12 subsequently, heat exchange is carried out in the process of contact, at this time, circulating pump 14 is started, and the cooling water in water tank 16 is extracted and pressurized after the start of circulating pump 14, so that the cooling water enters the inside of cooling roller 12 through water inlet pipe 13, and the inside of the roller is cooled and circulated, the heat of the sheet transmitted to cooling roller 12 is absorbed, the cooling water after absorbing heat is warmed up, and flows into cooling pipe 18 through water outlet pipe 17, at this time, two heat dissipation fans 21 are started, because cooling pipe 18 is made of copper material with good heat conductivity, and the outer wall of cooling pipe 18 is fixedly sleeved with heat dissipation fin 19, heat dissipation fin 19 can increase the heat dissipation area of cooling pipe 18 and strengthen the heat transfer effect, and at this time, two heat dissipation fans 21 blow air, accelerate air flow, so that the cooling water in the inside of cooling pipe 18 is rapidly cooled and cooled, and then the cooled water flows back to water tank 16 by relying on its own gravity and the pressure difference generated by circulating pump 14, under the continuous driving of circulating pump 14, the cooling water can be continuously transported to the inside of cooling roller 12, and the heated sheet is continuously cooled, so that the PVC sheet is efficiently and stably cooled, the sheet is quickly shaped, the requirements of the subsequent processing process on the temperature of the sheet are met, and the product quality is ensured.

[0029] The working principle of the whole device is: before use, the signal output end of the temperature sensor 10 is reliably connected with the signal acquisition end of the electrical control cabinet 11, the electrical control cabinet 11 adopts existing mature technology and has stable data acquisition and processing capability, then, a proper amount of cooling water is injected into the water tank 16 to provide cooling medium reserve for the subsequent sheet cooling process, when the PVC sheet enters the heating box 1 through the conveying roller 3, two groups of infrared heating pipes 5 are started, at the same time, the temperature sensor 10 starts to work, real-time monitors the temperature change of the heating box 1, through the accurate regulation and control of the electrical control cabinet 11, the temperature in the heating box 1 is stably controlled in the preset temperature range, after the two groups of infrared heating pipes 5 are powered on, a large amount of infrared rays is generated according to the blackbody radiation principle, the infrared rays irradiate and heat the PVC sheet from both sides in the form of heat radiation, ensuring that the sheet can quickly and uniformly absorb the initial heat and preliminarily realize temperature rise, at this time, two groups of first circulating fans 7 and two groups of second circulating fans 9 are started, due to the two isolation frames 4, the heating box 1 is divided into three relatively independent areas, after the two groups of first circulating fans 7 are started, the heat is forced to be transported into the upper and lower isolation areas by the wind pressure generated by the first circulating fans 7, then, the heat in the isolation area which has participated in heat exchange is guided back to the heating area by the suction and pushing action of the two groups of second circulating fans 9, thereby forming an efficient hot air circulation system in the heating area, which can ensure that the PVC sheet receives heat from all directions in a full range and uniformly during continuous conveying, effectively avoiding the quality problem of the sheet caused by uneven local heating, the infrared heating can quickly make the PVC sheet absorb a large amount of heat and quickly reach a high temperature, laying a good foundation for the subsequent forming and processing of the sheet, the heated sheet then enters the cooling process and closely contacts the surface of the cooling roller 12, during the contact process, strong heat conduction occurs between the sheet and the cooling roller 12, the heat of the sheet is quickly transferred to the cooling roller 12, at this time, the circulating pump 14 is started, after the circulating pump 14 is started, the cooling water in the water tank 16 is pumped and pressurized by the strong pumping capacity of the circulating pump 14, so that the cooling water enters the cooling roller 12 through the water inlet pipe 13 at a certain flow rate and pressure, in the cooling roller 12, the cooling water constantly absorbs the heat conducted from the sheet to the cooling roller 12 by forced convection, realizing efficient cooling circulation of the cooling roller 12 and indirectly cooling and temperature reduction of the sheet, after absorbing heat, the cooling water with increased temperature flows into the cooling pipe 18 through the water outlet pipe 17 under the pressure difference generated by the circulating pump 14 and the hydraulic circulation of the system, and the heat dissipation fins 19 can increase the heat dissipation surface area of the cooling pipe 18, significantly strengthening the heat exchange efficiency between the cooling pipe 18 and the surrounding air, at this time, two heat dissipation fans 21 are started, the high-speed airflow generated by the operation of the two heat dissipation fans 21 accelerates the airflow around the cooling pipe 18,The cooling water inside the cooling pipe 18 can quickly dissipate heat to the surrounding environment, achieving efficient heat dissipation and cooling, and then the cooled cooling water flows back to the water tank 16 by relying on its own gravity and the continuous pressure difference generated by the circulating pump 14, and under the continuous driving of the circulating pump 14, the cooled water in the water tank 16 can be continuously transported to the inside of the cooling roller 12 to continuously cool the heated PVC sheet, so as to realize the efficient, stable and continuous cooling operation of the PVC sheet, and ensure that the sheet is quickly cooled and shaped.

[0030] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technology content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A constant-temperature PVC sheet heating machine, characterized in that: The heating box (1) includes a heating box (1), on which two sets of mounting brackets (2) are fixedly installed on the outer wall. A conveying roller (3) is movably inserted between the inner walls of one of the two sets of mounting brackets (2). Two isolation brackets (4) are fixedly installed on the inner wall of the heating box (1). An infrared heating tube (5) is fixedly connected to the inner wall of each of the two isolation brackets (4). A first mounting hole (6) is opened on the top of each of the two isolation brackets (4). A first circulating fan (7) is fixedly inserted into the inner wall of each of the two sets of first mounting holes (6). A second mounting hole (8) is opened on the top of each of the two isolation brackets (4). A second circulating fan (9) is fixedly inserted into the inner wall of each of the two sets of second mounting holes (8). A temperature sensor (10) is fixedly installed on the inner wall of the heating box (1). An electrical control cabinet (11) is fixedly installed on one side of the outer wall of the heating box (1).

2. The constant temperature PVC sheet heating machine according to claim 1, characterized in that: A cooling roller (12) is movably inserted between the inner walls of the other of the two sets of mounting brackets (2), and the input end of the cooling roller (12) is fixedly connected to a water inlet pipe (13).

3. A constant temperature PVC sheet heating machine according to claim 2, characterized in that: The inlet pipe (13) is fixedly connected to a circulation pump (14), and the inlet pipe (14) is fixedly connected to a connecting pipe (15).

4. A constant temperature PVC sheet heating machine according to claim 3, characterized in that: The input end of the connecting pipe (15) is fixedly connected to the water tank (16), and the output end of the cooling roller (12) is fixedly connected to the water outlet pipe (17).

5. A constant temperature PVC sheet heating machine according to claim 4, characterized in that: The outlet pipe (17) is fixedly connected to the cooling pipe (18) at its output end, and one side of the outer wall of the water tank (16) is fixedly connected to the output end of the cooling pipe (18).

6. A constant temperature PVC sheet heating machine according to claim 5, characterized in that: The outer wall of the cooling pipe (18) is fixedly fitted with heat dissipation fins (19), and the outer wall of the heat dissipation fins (19) is fixedly connected with a fixing bracket (20).

7. A constant temperature PVC sheet heating machine according to claim 6, characterized in that: Two cooling fans (21) are fixedly inserted into one side of the outer wall of the fixed frame (20).

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