A thermal oil circulation arc oven device for plastic wire drawing machine

Abstract

The invention discloses an arc oven device for a heat-conducting oil circulating plastic wire drawing machine in the technical field of plastic wire drawing drying, comprising an inner box body and a heating box, wherein an internal wind hood is fixedly installed in the inner box body, the internal wind hood is located inside the inner box body, a plurality of guide rollers are evenly distributed in an annular manner on the side wall of the inner box body, the guide rollers are located outside the internal wind hood, an air duct is connected to the rear end of the inner box body, a hot air box is fixedly connected to one end of the air duct, a circulating heating pipe is fixedly installed in the hot air box, the output end and the input end of the circulating heating pipe are both connected to the heating box below the hot air box, and the heating box outputs constant-temperature heat-conducting oil for the circulating heating pipe; the heat-conducting oil required for heating of the invention is relatively low, the low-temperature operation of the heat-conducting oil is safer and energy-saving, and the wire drawing production temperature can be adjusted to reach the optimal production temperature for wire drawing and shaping; the arc oven extends the drying route of the plastic wire material in a limited space, so that the drying speed can be improved, which is conducive to fast and efficient production.

Description

Technical Field

[0001] The invention relates to the technical field of plastic wire drawing and drying, in particular to an arc-shaped drying oven device for a heat-conducting oil circulating plastic wire drawing machine. Background Art

[0002] At present, various energy-saving and consumption-reducing equipment for plastic wire drawing machines in China are constantly invented and applied to the wire drawing production of polyethylene and polypropylene of plastic machines, and good energy-saving and consumption-reducing results have been achieved. The main achievements are as follows: electromagnetic heating and quartz tube heating for wire drawing machines; variable frequency speed regulation of wire drawing machine winding machines; and DC motor speed regulation of wire drawing machine winding machines that has emerged in recent years.

[0003] In China, both the stretching oven and the shaping oven use electric heating temperature control to heat the arc drying plate to reach the appropriate temperature for the drawing machine stretching device and shaping device for polyethylene and polypropylene drawing production. The three-phase power of the electric heating of the stretching device and the shaping device of the drawing machine is 100KW-140KW, and the current is about 150A-180A when starting. In summer, the two electric heating devices of stretching and shaping are temporarily stopped and heated by temperature control. In winter, especially in the cold north, the monthly electricity consumption of 24-hour electric heating is about 50,000 degrees. The electric heating arc drying plate consumes a lot of energy, and it is difficult to accurately control the drying temperature. The heating temperature is not uniform, which easily leads to unsatisfactory drying effect.

[0004] Based on this, the present invention designs a heat transfer oil circulation arc oven device for plastic wire drawing machine to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a heat transfer oil circulation arc oven device for plastic wire drawing machines to solve the problems proposed in the above background technology that the electric heating arc drying plate has high energy consumption, it is difficult to accurately control the drying temperature, the heating temperature is not uniform, and it is easy to cause unsatisfactory drying effect.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A heat transfer oil circulation arc oven device for a plastic wire drawing machine comprises an inner box body and a heating box, an inner hood is fixedly installed in the inner box body, the inner hood is located inside the inner box body, a plurality of guide rollers are evenly distributed in an annular manner on the side wall of the inner box body, the guide rollers are located outside the inner hood, an air duct is connected to the rear end of the inner box body, a hot air box is fixedly connected to one end of the air duct, a circulating heating pipe is fixedly installed in the hot air box, the output end and the input end of the circulating heating pipe are both connected to the heating box below the hot air box, and the heating box outputs constant temperature heat transfer oil for the circulating heating pipe.

[0008] Preferably, the heating box is an electric heating box or a gas boiler, and the heating box is equipped with a constant temperature control module.

[0009] Preferably, an entrance and exit is opened on one side of the inner box body, and support plates are fixedly connected to the positions of the entrance and exit on both sides of the outer end of the inner box body, and a plurality of feed rollers are rotatably connected between the support plates. The feed rollers are vertically distributed up and down and are used for feeding in and out the wire material.

[0010] Preferably, there are three feed rollers, and the upper and lower feed rollers are connected to the middle feed roller through gear transmission. The upper and middle feed rollers are used to feed in the wire material, and the lower and middle feed rollers are used to output the wire material.

[0011] Preferably, a reversing roller is rotatably connected in the inner box body, and the reversing roller is located at the entrance and exit.

[0012] Preferably, the inner box body is fixedly connected to an insulation box on the outside, the inner box body inlet and outlet are larger than the outlet of the insulation box, the heating box is fixedly connected to a preheating box on the outside, a circulating fan is installed on one side of the insulation box, and an insulation pipe is connected between the insulation box and the preheating box.

[0013] Preferably, a filter basket is installed between the inner box and the heat preservation box, and the filter basket is L-shaped and has a cover fixedly connected to the front end.

[0014] Preferably, the front ends of the support plates on both sides of the outer end of the inner box body are respectively fixedly connected and bolted with extension plates, and dispersion rollers are rotatably connected between the extension plates.

[0015] Preferably, a roller shaft is sleeved inside the dispersion roller, and the roller shaft is rotatably connected to the extension plate. One of the extension plates and one of the sides of the support plate are respectively provided with a clamping groove and a clamping plate, and the clamping plate is located in the clamping groove and is fixed by bolts.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention generates constant temperature heat transfer oil through a heating box and conveys it to a circulating heating pipe. The heat released by the circulating heating pipe is evenly and quickly dispersed into the inner box through an internal fan, achieving the effect of rapid heating and uniform drying. A heat transfer oil pump is used for closed-loop circulation. The heat transfer oil requires less heating, and low-temperature operation of the heat transfer oil is safer and energy-saving. The wire drawing production temperature can be adjusted to achieve the optimal production temperature for wire drawing and shaping. The arc-shaped oven extends the drying route of the plastic wire material in a limited space, so that the drying speed can be increased, which is conducive to fast and efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0020] Figure 2 This is a schematic diagram of a half-section structure of the present invention from a front perspective;

[0021] Figure 3 This is a schematic diagram of a half-section structure of the present invention from a side perspective;

[0022] Figure 4 It is a half-section schematic diagram of the present invention from a front top view;

[0023] Figure 5 It is a schematic diagram of the enlarged structure of part A of the present invention;

[0024] Figure 6 It is a schematic diagram of the half-section structure of the heating box of the present invention from a top view.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Inner box; 2. Heating box; 3. Internal wind hood; 4. Guide roller; 5. Air duct; 6. Hot air box; 7. Circulating heating pipe; 8. Inlet and outlet; 9. Support plate; 10. Feeding roller; 11. Reversing roller; 12. Insulation box; 13. Preheating box; 14. Circulating fan; 15. Insulation pipe; 16. Filter basket; 17. Cover; 18. Extension plate; 19. Dispersion roller; 20. Roller shaft; 21. Snap-in plate; 22. Bolts. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-6 , the present invention provides a technical solution:

[0029] A heat transfer oil circulation arc oven device for a plastic wire drawing machine comprises an inner box body 1 and a heating box 2. An internal wind hood 3 is fixedly installed in the inner box body 1, and the internal wind hood 3 is located inside the inner box body 1. A plurality of guide rollers 4 are evenly distributed in an annular manner on the side wall of the inner box body 1, and the guide rollers 4 are located outside the internal wind hood 3. An air duct 5 is connected to the rear end of the inner box body 1, and a hot air box 6 is fixedly connected to one end of the air duct 5. A circulating heating pipe 7 is fixedly installed in the hot air box 6. The output end and the input end of the circulating heating pipe 7 are both connected to the heating box 2 below the hot air box 6, and the heating box 2 outputs constant temperature heat transfer oil for the circulating heating pipe 7.

[0030] When the device is used, the stretched plastic wire material is fed into the inner box body 1 and is dried in the inner box body 1 in a ring shape by the guide rollers 4; the constant temperature heat transfer oil is generated by the heating box 2 and transported to the circulating heating pipe 7, and the heat released by the circulating heating pipe 7 is evenly and quickly dispersed into the inner box body 1 by the internal fan, so as to achieve the effect of rapid heating and uniform drying. The heat transfer oil pump is used for closed-loop circulation. The heating required for the heat transfer oil is relatively low, and the temperature range of 100 degrees to 145 degrees can be used. The low-temperature operation of the heat transfer oil is safer and energy-saving, and the wire drawing production temperature can be adjusted to achieve the optimal production temperature for wire drawing and shaping; the arc oven extends the drying route of the plastic wire material in a limited space, so that the drying speed can be increased, which is conducive to fast and efficient production.

[0031] Wherein, the heating box 2 is an electric heating box or a gas boiler, and the heating box 2 is equipped with a constant temperature control module. It is best to use a natural gas thermal oil boiler to heat the thermal oil, and using natural gas saves 55% of funds compared to using electricity. The heating temperature of the thermal oil can be controlled by the constant temperature control module.

[0032] Among them, an entrance and exit 8 is opened on one side of the inner box body 1, and support plates 9 are fixedly connected to the positions of the entrance and exit 8 on both sides of the outer end of the inner box body 1. A plurality of feeding rollers 10 are rotatably connected between the support plates 9. The feeding rollers 10 are vertically distributed up and down and are used for feeding in and out the wire material.

[0033] Among them, there are three feeding rollers 10, and the feeding rollers 10 located at the top and bottom are connected to the feeding roller 10 in the middle through gear transmission. The feeding rollers 10 at the top and the middle are used to feed in the wire material, and the feeding rollers at the bottom and the middle are used to output the wire material.

[0034] Using feed rollers 10 of the same diameter and vertical distribution can ensure that the speed of the plastic wire entering and exiting is the same, avoiding the speed difference causing the wire to be loose around the roller or the wire to be tensioned transition, uneven thickness or breakage.

[0035] A reversing roller 11 is rotatably connected inside the inner box body 1 , and the reversing roller 11 is located at the entrance and exit 8 .

[0036] The in-and-out direction of the plastic filaments is changed by the reversing roller 11, thereby avoiding the scraping of the filaments against the side wall of the box, etc., so that the circulation drying is smooth and the filaments are smooth.

[0037] Among them, the inner box body 1 is fixedly connected to the outside with an insulation box 12, the inlet and outlet 8 of the inner box body 1 is larger than the outlet of the insulation box 12, the heating box 2 is fixedly connected to the outside with a preheating box 13, a circulating fan 14 is installed on one side of the insulation box 12, and an insulation pipe 15 is connected between the insulation box 12 and the preheating box 13.

[0038] Most of the hot air after drying the silk material is sucked into the insulation box 12 from the outlet by the circulating fan 14, and the hot air sucked into the insulation box 12 is sent to the preheating box 13, so that there is always hot air in the insulation box 12, avoiding a large amount of temperature leakage in the inner box 1, and also playing a role in controlling temperature fluctuations, so that it is easier to keep the drying temperature in the inner box 1 constant. At the same time, the hot air enters the preheating box 13 to preheat and keep the heat transfer oil to be heated in the heating box 2 to a certain extent, and also reduces the energy input for heating the heat transfer oil to the required temperature, which saves energy and is conducive to quickly heating the heat transfer oil to the specified temperature, and is conducive to maintaining a stable heat transfer oil stability.

[0039] A filter basket 16 is installed between the inner box 1 and the heat preservation box 12 . The filter basket 16 is L-shaped and a cover 17 is fixedly connected to the front end.

[0040] When the hot air after drying is collected, the hot air is filtered by the filter basket 16 and then transported out through the insulation pipe 15 to collect debris and dust, which is beneficial to the hot air circulation and the service life of the machine.

[0041] The front ends of the support plates 9 on both sides of the outer end of the inner box body 1 are respectively fixedly connected and bolted 22 to the extension plates 18 , and the dispersion rollers 19 are rotatably connected between the extension plates 18 .

[0042] The arc grooves on the dispersion rollers 19 are used to guide the silk material entering and exiting the inner box 1 for drying, thereby limiting its swinging and deviation, and avoiding uneven stretching or drying caused by uneven dispersion.

[0043] Among them, a roller shaft 20 is sleeved inside the dispersion roller 19, and the roller shaft 20 is rotatably connected to the extension plate 18. One of the extension plates 18 and one of the sides of the support plate 9 are respectively provided with a clamping groove and a clamping plate 21. The clamping plate 21 is located in the clamping groove and is fixed by a bolt 22.

[0044] For drying silk materials of different densities, the extension plate 18 at one end can be removed by unscrewing the bolt 22, and the dispersion roller 19 outside the roller shaft 20 can be replaced, so that silk threads of different densities can be guided, which is more flexible and convenient to use.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A heat transfer oil circulation arc oven device for plastic wire drawing machine, characterized in that: The invention comprises an inner box (1) and a heating box (2), wherein an internal wind hood (3) is fixedly installed in the inner box (1), wherein the internal wind hood (3) is located inside the inner box (1), and a plurality of guide rollers (4) are evenly distributed in an annular shape on the side wall of the inner box (1), wherein the guide rollers (4) are located outside the internal wind hood (3), and an air duct (5) is connected to the rear end of the inner box (1), wherein one end of the air duct (5) is fixedly connected to a hot air box (6), and a circulating heating pipe (7) is fixedly installed in the hot air box (6), wherein both the output end and the input end of the circulating heating pipe (7) are connected to the heating box (2) below the hot air box (6), and the heating box (2) outputs constant temperature heat transfer oil to the circulating heating pipe (7); An inlet and outlet (8) is provided on one side of the inner box body (1), and support plates (9) are fixedly connected to the positions of the inlet and outlet (8) on both sides of the outer end of the inner box body (1), and a plurality of feeding rollers (10) are rotatably connected between the support plates (9), and the feeding rollers (10) are vertically distributed up and down and are used for feeding in and out the wire material; The inner box (1) is fixedly connected to an insulation box (12) on the outside, the inlet and outlet (8) of the inner box (1) is larger than the outlet of the insulation box (12), the heating box (2) is fixedly connected to a preheating box (13) on the outside, a circulating fan (14) is installed on one side of the insulation box (12), and an insulation pipe (15) is connected between the insulation box (12) and the preheating box (13); A filter basket (16) is installed between the inner box (1) and the heat preservation box (12); the filter basket (16) is L-shaped and has a sealing cover (17) fixedly connected to the front end.

2. A heat transfer oil circulation arc oven device for plastic wire drawing machine according to claim 1, characterized in that: The heating box (2) is an electric heating box or a gas boiler, and the heating box (2) is equipped with a constant temperature control module.

3. A heat transfer oil circulation arc oven device for plastic wire drawing machine according to claim 1, characterized in that: The feeding rollers (10) are provided with three, the upper and lower feeding rollers (10) are both connected to the middle feeding roller (10) through gear transmission, the upper and middle feeding rollers (10) are used to feed in the wire material, and the lower and middle feeding rollers (10) are used to output the wire material.

4. A heat transfer oil circulation arc oven device for plastic wire drawing machine according to claim 1, characterized in that: A reversing roller (11) is rotatably connected inside the inner box body (1), and the reversing roller (11) is located at the entrance and exit (8).

5. A heat transfer oil circulation arc oven device for plastic wire drawing machine according to claim 1, characterized in that: The front ends of the support plates (9) on both sides of the outer end of the inner box body (1) are respectively fixedly connected and bolted (22) to extension plates (18), and a dispersion roller (19) is rotatably connected between the extension plates (18).

6. A heat transfer oil circulation arc oven device for plastic wire drawing machine according to claim 5, characterized in that: A roller shaft (20) is sleeved inside the dispersion roller (19), and the roller shaft (20) is rotatably connected to the extension plate (18). One of the extension plates (18) and one of the side edges of the support plate (9) are respectively provided with a clamping groove and a clamping plate (21), and the clamping plate (21) is located in the clamping groove and is fixed by a bolt (22) passing through it.

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