CN211261739U

CN211261739U - Device for heating long workpiece through IGBT induction power supply

Info

Publication number: CN211261739U
Application number: CN201921816750.0U
Authority: CN
Inventors: 陈泽贵
Original assignee: Chengdu Duolin Electric Co ltd
Current assignee: Chengdu Duolin Electric Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-08-14
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a device for heating a long workpiece through an IGBT (insulated gate bipolar translator) induction power supply, which solves the problems that the long workpiece is heated through the heat radiation of a natural gas furnace, the whole long workpiece is placed in the furnace, the heating time is long, and oxide skins are more; the inlet end of the feeding conveying device is connected with the material preparing device, and the outlet end of the feeding conveying device is connected with the inlet end of the heating box; the outlet end of the heating box is connected with the inlet end of the hot material conveying device, the outlet end of the hot material conveying device is connected with the inlet end of the heat preservation heating box, the outlet end of the heat preservation heating box is connected with the inlet end of the discharging conveying device, and the outlet end of the discharging conveying device is connected with the storage equipment. The device has the advantages of high heating speed, uniform heating temperature and the like.

Description

Device for heating long workpiece through IGBT induction power supply

Technical Field

The utility model relates to a long work piece heating device field, concretely relates to through device of IGBT induction power heating long work piece.

Background

Along with the advocation of environmental protection, the mode of heating long bar by traditional natural gas stove has gradually lost the market, and the market prospect of induction heating long bar is fine. Because the traditional natural gas furnace heats up the long workpiece to be heated through heat radiation, the whole long workpiece to be heated is placed in the furnace, the heating-up time is long, and the oxide skin is more. The induction heating is to heat the long workpiece to be heated quickly through electromagnetic field exchange, and the long workpiece can be heated quickly and uniformly through heating and temperature equalization in the coil at a constant speed.

Disclosure of Invention

The heating furnace aims at solving the problems that in the prior art, the conventional natural gas furnace heats up a long workpiece through heat radiation, the whole long workpiece is placed in the furnace, the heating time is long, and the oxide skin is more. The utility model provides a device for heating long workpiece through IGBT induction power supply.

A device for heating a long workpiece through an IGBT induction power supply comprises a feeding conveying device, a heating box, a hot material conveying device, a heat preservation heating box and a discharging conveying device;

the inlet end of the feeding conveying device is connected with the material preparing device, and the outlet end of the feeding conveying device is connected with the inlet end of the heating box; the outlet end of the heating box is connected with the inlet end of the hot material conveying device, the outlet end of the hot material conveying device is connected with the inlet end of the heat preservation heating box, the outlet end of the heat preservation heating box is connected with the inlet end of the discharging conveying device, and the outlet end of the discharging conveying device is connected with the storage equipment.

Further, feeding conveyer hot material conveyer with ejection of compact conveyer adopts the pinch roller conveying, feeding conveyer's step speed with hot material conveyer's step speed is the same, ensures to wait that the heating member is in the intensification heating cabinet with the conveying speed of heat preservation heating cabinet is unanimous, feeding conveyer with hot material conveyer's step speed is less than ejection of compact conveyer's step speed ensures to wait that the heating member is leaving fast heat preservation heating cabinet guarantees to wait to add the heat member head and the tail temperature unanimous.

The feeding conveying device comprises a feeding conveying device, a hot material conveying device and a discharging conveying device, and further comprises a low-frequency variable frequency motor and a high-speed variable frequency motor, wherein the low-frequency variable frequency motor adjusts the stepping speeds of the feeding conveying device and the hot material conveying device, and the high-speed variable frequency motor adjusts the stepping speed of the discharging conveying device.

Further, the heating member is treated to the intensification heating cabinet and is heated, the heat preservation heating cabinet keeps warm to the heating member of treating that accomplishes, the intensification heating cabinet with the heat preservation heating cabinet cooperation is accomplished and is treated the heating member samming heating, the intensification heating cabinet adopts IGBT induction heating 600KW power, the heat preservation heating cabinet adopts IGBT induction heating 250KW power.

Further, the heating box comprises a heating box and a temperature equalizing box, and a temperature equalizing space is arranged between the heating box and the temperature equalizing box, so that the large temperature difference between the surface of the to-be-heated member and the center of the to-be-heated member is avoided; the heat preservation heating cabinet size with wait that the heating member size matches, the heat preservation heating cabinet is a whole, ensures that the heating member is whole all to carry out samming, heat preservation in the furnace body for a long time, ensures that the heating member of waiting is head and tail both ends temperature to be close, improves and waits to add the heating member heating effect.

Further, the device of prepareeing material includes stock preparation platform and conveying roller, the stock preparation platform will wait to add the heat-insulating material and send into under the effect of liftout cylinder conveying roller waits to add the heat-insulating material and is in conveying roller's drive down to feeding conveyer removes, conveying roller is by conveying roller motor control, conveying roller's speed slightly is greater than low-speed variable frequency motor speed, guarantees the intensification heating cabinet with in the heat preservation heating cabinet it is continuous to wait to heat the work piece.

Further, still be provided with stock preparation device on, the liftout cylinder will wait that heating member pushes up behind the dam device, wait that heating member slides in again the conveying gyro wheel, the dam device will wait that heating member works as on the stock preparation bench, the liftout cylinder jack-up one at every turn wait to heat the work piece and arrive on the dam device, the dam device with wait to heat the work piece contact surface and be the inclined plane, wait to heat the work piece and arrive when the dam device is last, slide in under the action of gravity the conveying gyro wheel, the dam device with the cooperation of liftout cylinder guarantees that it is one and gets into to wait to heat the member conveying gyro wheel.

Further, the pinch roller conveying includes pinch roller, pinch roller and detection switch down, when the detection switch detects treating with the heat-insulating material, go up the pinch roller and descend downwards under the cylinder effect, inject with the heat-insulating material go up the pinch roller with just contact completely between the pinch roller down, last pinch roller with the pinch roller rotates under the effect of motor down, drives through frictional force treat that the heat-insulating material moves forward.

The utility model discloses the principle: adopt IGBT induction power supply's mode to give the length and treat heating member monolithic heating, put the heating member of treating of the same specification on the material preparation bench in order, the ejector material cylinder action is with first treating the heating member up ejecting, will treat that the heating member sends into the conveying gyro wheel, treat that the heating member passes through the gyro wheel and conveys to feeding conveyer, when detection switch detects to treat that the heating member reachs feeding conveyer, feeding conveyer at the uniform velocity of rotation under inverter motor's drive, will treat that the heating member sends into the intensification heating cabinet under the effect of friction power, treat that the heating member accomplishes the heating at the intensification heating cabinet, treat that the heating member passes through the samming, intensification to 1200 ℃, then come out from the intensification heating cabinet. When waiting to add the heat-insulating material between intensification heating cabinet and the heat preservation heating cabinet, hot material conveyer passes through frictional force and waits to add the heat-insulating material at the uniform velocity and conveys to the heat preservation heating cabinet in, when the heat-insulating material of waiting to add that the heating is accomplished comes out from heat preservation heating cabinet discharge gate, ejection of compact conveyer drives through frictional force fast and waits to add the heat-insulating material and leave the heat preservation heating cabinet, and whole heating process is accomplished.

The utility model discloses have following advantage and beneficial effect:

1. the utility model discloses; adopt IGBT induction heating 600KW power through the intensification heating cabinet, the heat preservation heating cabinet adopts IGBT induction heating 250KW power, realizes the quick bulk heating of long work piece and heat retaining effect.

2. The utility model discloses; the feeding conveying device and the hot material conveying device are controlled by the same low-frequency variable frequency motor, so that the feeding conveying device and the hot material conveying device are guaranteed to be consistent in speed, and the heating box for heating and the heat preservation heating box for heating are guaranteed to be consistent in transmission speed.

3. The utility model discloses; the discharging conveying device is adjusted through the high-speed variable frequency motor, so that the speed of the discharging conveying device is higher than the speeds of the feeding conveying device and the hot material conveying device, the long workpiece after heat preservation leaves the heat preservation heating box quickly, and the large head-to-tail temperature difference of the long workpiece can be avoided.

4. The utility model discloses; the heating box is divided into the heating box and the temperature equalizing box, and the temperature equalizing space is arranged between the heating box and the temperature equalizing box, so that the large temperature difference between the surface of the workpiece to be heated and the center of the long workpiece is avoided, and the heating effect is improved.

5. The utility model discloses; through being a whole with the design of heat preservation heating cabinet, guarantee that long work piece is whole all to carry out samming, heat preservation in the furnace body, guarantee that treat that heating member head and the tail both ends temperature is close, improve and treat that heating member heating effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a structural diagram of the long workpiece heating production line of the utility model.

Fig. 2 is a schematic structural view of the warming and heating box of the present invention.

Fig. 3 is a mechanical structure diagram of the material preparing device of the present invention.

Fig. 4 is a vertical view of the feeding device of the present invention.

Reference numbers and corresponding part names in the drawings:

1-material preparation device, 2-feeding conveying device, 3-heating box, 4-heating conveying device, 5-heat preservation heating box, 6-discharging conveying device, 7-low frequency variable frequency motor, 8-high speed variable frequency motor, 9-IGBT induction heating 600KW power supply, 10-IGBT induction heating 250KW power supply, 11-heating box, 12-temperature equalizing box, 13-temperature equalizing interval, 14-material preparation platform, 15-conveying roller, 16-material stopping device, 17-material ejecting cylinder and 18-conveying roller motor.

Detailed Description

Hereinafter, the terms "includes" or "may include" used in various embodiments of the present invention indicate the presence of the invented functions, operations or elements, and do not limit the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to refer only to the particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combination of the foregoing.

In various embodiments of the present invention, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B, or may include both a and B.

Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.

It should be noted that: if it is described that one constituent element is "connected" to another constituent element, the first constituent element may be directly connected to the second constituent element, and a third constituent element may be "connected" between the first constituent element and the second constituent element. In contrast, when one constituent element is "directly connected" to another constituent element, it is understood that there is no third constituent element between the first constituent element and the second constituent element.

The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

A device for heating a long workpiece by an IGBT induction power supply.

As shown in fig. 1 and fig. 2, the material preparation device 1 is connected with the inlet end of the feeding conveying device 2, the outlet end of the feeding conveying device 2 is connected with the heating box 11 of the heating box 3, the temperature equalizing box 12 of the heating box 3 is connected with the inlet end of the hot material conveying device 4, a temperature equalizing space 13 is arranged between the heating box 11 and the temperature equalizing box 12, the outlet end of the hot material conveying device 4 is connected with the inlet end of the heat preservation heating box 5, the outlet end of the heat preservation heating box 5 is connected with the discharging conveying device 6, the low-frequency variable-frequency motor 7 adjusts the speeds of the feeding conveying device 2 and the hot material conveying device 4, the high-speed variable-frequency motor 8 adjusts the speed of the discharging conveying device 6, the IGBT induction heating 600KW power supply 9 provides power for the heating box, and the IGBT induction heating 250KW power supply 10 provides power for the.

As shown in fig. 1, 3 and 4, a workpiece to be heated is placed on a material preparation table 14, a material blocking device 16 blocks the workpiece to be heated on the material preparation table 14, the workpiece to be heated on the material preparation table 14 is nailed to the material blocking device 16 one by one under the action of a material ejecting cylinder 17, then the workpiece to be heated slides into a conveying roller 15 under the action of gravity, the conveying roller 15 conveys the workpiece to be heated to a feeding conveying device 2, and the conveying roller 15 moves under the action of a conveying roller motor 18 at a speed slightly higher than that of a low-speed frequency conversion motor.

Wherein, feeding conveyer 2, hot material conveyer 4 and ejection of compact conveyer 6 adopt the pinch roller conveying, specifically are last pinch roller and push down the cooperation of wheel, will wait that the heating member is injectd between last pinch roller and push down the wheel, wait to heat the member through frictional force conveying.

Specifically, a to-be-heated member is placed on a material preparing table 14, a material blocking device 16 blocks the to-be-heated member on the material preparing table 14, the to-be-heated member is pushed to the material blocking device 16 one by one under the action of a material pushing cylinder 17, the to-be-heated member slides into a conveying device 15 under the action of the slope and gravity of the material preparing table 14, the conveying device 15 conveys the to-be-heated member to a feeding conveying device 2, and when a detection switch of the feeding conveying device 2 detects the to-be-heated member, the last pinch roller of feeding conveyer 2 descends under the cylinder effect, and until waiting to add the heat-insulating material and contact completely between last pinch roller and pinch roller down, go up pinch roller and pinch roller wheel self at the uniform velocity of rotation under low frequency inverter motor's drive, wait to add the heat-insulating material under the frictional force effect of last pinch roller and pinch roller down, at the uniform velocity entering intensification heating cabinet 3, intensification heating cabinet 3 is under the effect of IGBT induction heating 600KW power 9. When waiting to add the heat-insulating material and passing through intensification heating cabinet 3, wait that the heat-insulating material carries out rapid heating up, then accomplish the heat-insulating material of waiting of intensification and reach hot material conveyer 4 department, when hot material conveyer 4's detection switch detected waiting to add the heat-insulating material, hot material conveyer 4's last pinch roller descends under the cylinder effect, until waiting to add the heat-insulating material and contact completely between last pinch roller and the lower pinch roller, go up pinch roller and lower pinch roller self at the uniform velocity of rotation under low frequency inverter motor's drive, wait to add the heat-insulating material under the frictional force effect of last pinch roller and lower pinch roller, at the uniform velocity entering heat preservation heating cabinet 5, intensification heating cabinet 3 keeps warm to the heat-insulating material of waiting to add that accomplishes the intensification under the effect of IGBT induction heating 250KW power 10. When ejection of compact conveyer 6's detection switch detected waiting to add the heat-insulating material, ejection of compact conveyer 6's last pinch roller descends under the cylinder effect, contacts completely between last pinch roller and lower pinch roller until waiting to add the heat-insulating material, goes up pinch roller and lower pinch roller self at the uniform velocity under high frequency inverter motor 8's drive and rotates, waits to add the heat-insulating material under the frictional force effect of last pinch roller and lower pinch roller, leaves heat preservation heating cabinet 5 fast, and whole heating process is accomplished.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A device for heating a long workpiece through an IGBT induction power supply is characterized by comprising a feeding conveying device (2), a heating box (3), a hot material conveying device (4), a heat preservation heating box (5) and a discharging conveying device (6);

the inlet end of the feeding conveying device (2) is connected with the material preparing device (1), and the outlet end of the feeding conveying device (2) is connected with the inlet end of the heating box (3); the exit end of intensification heating cabinet (3) with the entrance connection of hot material conveyer (4), the exit end of hot material conveyer (4) with the entrance connection of heat preservation heating cabinet (5), the exit end of heat preservation heating cabinet (5) with the entrance connection of ejection of compact conveyer (6), the exit end and the storage device of ejection of compact conveyer (6) are connected.

2. The device for heating long workpieces by IGBT induction power supply as claimed in claim 1, characterized in that the feeding conveyor (2), the hot material conveyor (4) and the discharging conveyor (6) are conveyed by press wheels, the stepping speed of the feeding conveyor (2) is the same as that of the hot material conveyor (4), and the stepping speeds of the feeding conveyor (2) and the hot material conveyor (4) are smaller than that of the discharging conveyor (6).

3. The device for heating the long workpiece by the IGBT induction power supply as recited in claim 2, characterized by further comprising a low-frequency variable-frequency motor (7) and a high-speed variable-frequency motor (8), wherein the low-frequency variable-frequency motor (7) adjusts the stepping speed of the feeding conveyor (2) and the hot material conveyor (4), and the high-speed variable-frequency motor (8) adjusts the stepping speed of the discharging conveyor (6).

4. The device of a long work piece of through IGBT induction heating power supply heating according to claim 1, characterized in that, heating member is treated in intensification heating cabinet (3) and is heated, heat preservation heating cabinet (5) keep warm to the heating member of treating that accomplishes of heating, intensification heating cabinet (3) with heat preservation heating cabinet (5) cooperation is accomplished and is treated heating member samming heating, intensification heating cabinet (3) adopt IGBT induction heating 600KW power (9), heat preservation heating cabinet (5) adopt IGBT induction heating 250KW power (10).

5. The device for heating the long workpiece by the IGBT induction power supply is characterized in that the temperature-rising heating box (3) comprises a temperature-rising box (11) and a temperature-equalizing box (12), and a temperature-equalizing space (13) is arranged between the temperature-rising box (11) and the temperature-equalizing box (12); the size of the heat preservation heating box (5) is matched with that of the to-be-heated piece.

6. The device for heating the long workpiece through the IGBT induction power supply is characterized in that the material preparation device (1) comprises a material preparation table (14) and a conveying roller (15), the material preparation table (14) feeds the to-be-heated member into the conveying roller (15) under the action of a material ejecting cylinder (17), the conveying roller (15) moves under the action of a transmission motor, and the to-be-heated member moves towards the feeding conveying device (2) under the action of the conveying roller (15).

7. The device for heating the long workpiece through the IGBT induction power supply according to claim 6, wherein a material blocking device (16) is further arranged on the material preparation device (1), and after the material ejecting cylinder (17) ejects the to-be-heated member into the material blocking device (16), the to-be-heated member slides into the conveying roller (15).

8. The device for heating the long workpiece by the IGBT induction power supply as claimed in claim 2, wherein the pinch roller transmission comprises an upper pinch roller, a lower pinch roller and a detection switch, when the detection switch detects that the heating element is to be heated, the upper pinch roller descends under the action of the air cylinder, and the heating element is limited between the upper pinch roller and the lower pinch roller and is completely contacted.