CN216442900U

CN216442900U - Plastic conduit produces heating device

Info

Publication number: CN216442900U
Application number: CN202123122640.4U
Authority: CN
Inventors: 徐良; 王杰军; 徐亦炯; 王成荣
Original assignee: Ad Pipeline Hunan Co ltd
Current assignee: Ad Pipeline Hunan Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-05-06
Anticipated expiration: 2031-12-13

Abstract

The utility model provides a heating device for plastic pipeline production, and belongs to the technical field of plastic pipeline production. The natural gas flame heating device solves the problem that a plurality of defects exist in the heating of a mold by adopting natural gas flame in the prior art. This plastic conduit produces heating device, including the PLC controller and by PLC controller control can follow X to the moving platform that removes, X rolls on to the moving platform and is provided with plastic conduit forming die, one side of plastic conduit forming die is provided with and can follow X to the temperature measuring device who removes by PLC controller control, the last cover of plastic conduit forming die is equipped with the electromagnetic heating circle that is used for its local heating, electromagnetic heating circle and temperature measuring device are connected with the PLC controller electricity respectively. The utility model has the advantages of accurately controlling the local heating temperature of the plastic pipeline forming die and improving the utilization rate of heat energy.

Description

Plastic conduit produces heating device

Technical Field

The utility model belongs to the technical field of plastic pipeline production, and relates to a heating device for plastic pipeline production.

Background

Carat pipe is a High Density Polyethylene (HDPE) winding structure wall pipe formed by hot winding. The wall pipe is a special structure wall pipe with high external pressure resistance, which is made by taking high-density polyethylene resin as a main raw material, adopting a hot winding poplar type process and taking a polypropylene PP single-wall corrugated pipe as a supporting structure. In the manufacturing process of the krah pipe, the die needs to be heated locally, and the film is coated immediately after the heating at the position is finished, the conventional heating method is to heat the die by using natural gas flame, but the method adopting the natural gas flame heating has the following defects: 1. firstly, the heat quantity of flame heating is uneven and unstable, which easily causes uneven heating of a heating part, and secondly, the heating temperature of the flame heating is not easy to control, and waste products are easily produced after the heating temperature is too high and too low and the film is covered; 2. the heat energy utilization rate of flame heating is low, the loss is serious, great resource waste exists, and a plurality of unsafe factors can be generated if fuel gas leakage occurs.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a plastic pipeline production heating device. The utility model solves the technical problem of how to accurately control the local heating temperature of the plastic pipeline forming die and simultaneously improve the heat energy utilization rate.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a plastic conduit produces heating device, a serial communication port, including the PLC controller and by PLC controller control can follow X to the moving platform that removes, X rolls to being provided with plastic conduit forming die on the moving platform, one side of plastic conduit forming die is provided with can follow X to the temperature measuring device who removes by PLC controller control, the last cover of plastic conduit forming die is equipped with the electromagnetic heating circle that is used for its local heating, electromagnetic heating circle and temperature measuring device are connected with the PLC controller electricity respectively.

When in use, the electromagnetic heating ring is fixed, firstly the PLC controls the X-direction moving platform to move to the original point along the X direction and controls the electromagnetic heating ring to heat, after the electromagnetic heating ring is heated to reach the set temperature, the PLC controls the X-direction moving platform to move along the X direction, slowly pass through the electromagnetic heating ring and roll on the plastic pipeline forming mould on the X-direction moving platform to synchronously rotate (the PLC controls the rotation), so that the surface of the plastic pipeline forming mould covered by the electromagnetic heating ring is uniformly heated, meanwhile, the temperature measuring device is controlled by the PLC to synchronously move with the X-direction moving platform and measure the temperature in real time, then the PLC adjusts the heating power of the electromagnetic heating ring in real time according to the moving speed of the X-direction moving platform, the initially set heating temperature and the real-time temperature measuring data of the temperature measuring device until the electromagnetic heating ring finishes heating the whole plastic pipeline forming mould, therefore, the heating device for plastic pipeline production can accurately control the local heating temperature of the plastic pipeline forming die, and meanwhile, the electromagnetic heating ring is sleeved on the plastic pipeline forming die to heat the plastic pipeline forming die, so that the heat energy utilization rate can be improved, and the heating mode of the electromagnetic heating ring is free of open fire, has little influence on the environment and is safer.

In the above heating device for plastic pipeline production, a plastic extruder whose discharge is controlled by a PLC controller is arranged beside the plastic pipeline forming mold, and a rubber material discharge port of the plastic extruder is arranged adjacent to the electromagnetic heating ring.

Above-mentioned structure makes and accomplishes the part of heating and carry out the tectorial membrane operation in step (by the ejection of compact of PLC controller control plastic extruder, on the plastic pipeline forming die is wrapped to the sizing material discharge gate behind the ejection of compact) at the electromagnetic heating circle, also accomplishes the tectorial membrane operation in step when the electromagnetic heating circle is accomplished to whole plastic pipeline forming die heating, has guaranteed the utilization ratio of tectorial membrane quality and heat energy.

In foretell plastic conduit production heating device, electromagnetic heating circle side is provided with the high frequency power supply, and the input of high frequency power supply is connected with the commercial power, the output of high frequency power supply with electromagnetic heating circle electricity is connected. Compared with a common power supply, the high-frequency power supply can enable the electromagnetic heating ring to heat more quickly, and the heating device for plastic pipeline production can accurately control the local heating temperature of the plastic pipeline forming die and improve the heat energy utilization rate.

In the above heating device for plastic pipeline production, rolling devices are respectively arranged at two end portions of the X-direction moving platform, each rolling device comprises two rollers which are adjacently arranged, and two end portions of the plastic pipeline forming mold are respectively placed between the two rollers of the same rolling device. The rollers of the two rolling devices synchronously roll in the same direction, so that the plastic pipeline forming die is driven to roll, and the PLC can control the plastic pipeline forming die to roll by adopting a mode that the PLC controls the rollers to roll through a motor.

In the heating device for plastic pipeline production, the temperature measuring device is a short wave infrared temperature measuring probe.

Because the surface of the mould is a metal reflecting surface, the temperature of the mould can not be accurately obtained by using a common infrared measurement method, and the accurate temperature of the mould can be measured after the proper reflection rate is set by using a short wave mode, so that the heating device for plastic pipeline production can accurately control the local heating temperature of the plastic pipeline forming mould.

Compared with the prior art, this plastic conduit produces heating device's advantage lies in: this plastic conduit production heating device adopts PLC controller control X to moving platform's removal, electromagnetic heating circle's heating power, temperature measuring device and X glue to moving platform's synchronous motion and plastics extruder's play, can carry out accurate control to the local heating temperature of plastic conduit forming die, and carry out the tectorial membrane in step after the heating, the tectorial membrane is effectual, also can improve heat utilization simultaneously, and the heating method who adopts electromagnetic heating circle does not have naked light, little to the environmental impact, it is safer.

Drawings

Fig. 1 is a schematic perspective view of the heating device for plastic pipeline production.

In the figure, the platform moves in the 1 and X directions; 2. a plastic pipeline forming die; 3. a high frequency power supply; 4. an electromagnetic heating coil; 5. a sizing material outlet; 6. a roller; 7. a temperature measuring device; 8. a PLC controller.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

A plastic pipeline production heating device, refer to FIG. 1, including PLC controller 8 and X that can be controlled by PLC controller 8 to move along X to moving platform 1, X rolls to moving platform 1 and is provided with plastic pipeline forming die 2, one side of plastic pipeline forming die 2 is provided with can be controlled by PLC controller 8 along X to the temperature measuring device 7 that moves, the plastic pipeline forming die 2 is fitted with the electromagnetic heating ring 4 used for its local heating, electromagnetic heating ring 4 and temperature measuring device 7 are connected with PLC controller 8 electricity respectively, further, there is a high-frequency power supply 3 by the side of electromagnetic heating ring 4, the input end of the high-frequency power supply 3 is connected with commercial power, the output end of the high-frequency power supply 3 is connected with said electromagnetic heating ring 4 electricity, the temperature measuring device 7 is the infrared temperature probe of shortwave; a plastic extruder with the discharge controlled by a PLC (programmable logic controller) 8 is arranged beside the plastic pipeline forming die 2, and a sizing material discharge port 5 of the plastic extruder is arranged adjacent to the electromagnetic heating ring 4; the two end parts of the X-direction moving platform 1 are respectively provided with a rolling device, the rolling devices comprise two rollers 6 which are adjacently arranged, and the two end parts of the plastic pipeline forming die 2 are respectively placed between the two rollers 6 of the same rolling device.

When the device is used, the electromagnetic heating ring 4 is fixed, firstly, the PLC 8 controls the X-direction moving platform 1 to move to the original point along the X-direction (the X-direction moving platform 1 is driven by a screw rod in transmission connection with the motor, the PLC 8 controls the starting, stopping and rotating directions of the motor through a travel switch, so that the PLC 8 controls the X-direction moving platform 1 to move along the X-direction) and controls the electromagnetic heating ring 4 to heat, after the electromagnetic heating ring 4 is heated to a set temperature, the PLC 8 controls the X-direction moving platform 1 to move along the X-direction, slowly pass through the electromagnetic heating ring 4 and roll the plastic pipeline forming die 2 arranged on the X-direction moving platform 1 to synchronously rotate (the PLC 8 controls the rotation), so that the surface of the plastic pipeline forming die 2 covered by the electromagnetic heating ring 4 is uniformly heated, meanwhile, the temperature measuring device 7 is controlled by the PLC 8 to synchronously move with the X-direction moving platform 1 and measure the temperature in real time (the temperature measuring device 7 is arranged on the rack and is arranged on the rack (the rack) and is arranged on the rack), and the rack On the machine frame, the machine frame is driven by a screw rod in transmission connection with the motor, the PLC 8 controls the starting, stopping and rotating direction of the motor through a travel switch, thereby realizing the synchronous movement of the temperature measuring device 7 and the X-direction moving platform 1 controlled by the PLC 8), then the PLC 8 adjusts the heating power of the electromagnetic heating ring 4 in real time according to the moving speed of the X-direction moving platform 1, the initially set heating temperature and the real-time temperature measuring data of the temperature measuring device 7 until the electromagnetic heating ring 4 finishes the heating of the whole plastic pipeline forming die 2, therefore, the plastic pipeline production heating device can accurately control the local heating temperature of the plastic pipeline forming die 2, meanwhile, the electromagnetic heating ring 4 is sleeved on the plastic pipeline forming die 3 to heat the plastic pipeline forming die, the heat energy utilization rate can be improved, and the heating mode of the electromagnetic heating ring 4 is adopted without open fire, the environmental impact is small, and the safety is higher.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides a plastic conduit produces heating device, a serial communication port, including PLC controller (8) and by PLC controller (8) control can follow X to moving platform (1), X rolls on to moving platform (1) and is provided with plastic conduit forming die (2), one side of plastic conduit forming die (2) is provided with and can follow X to the temperature measuring device (7) that remove by PLC controller (8) control, the cover is equipped with electromagnetic heating circle (4) that are used for its local heating on plastic conduit forming die (2), electromagnetic heating circle (4) and temperature measuring device (7) are connected with PLC controller (8) electricity respectively.

2. The plastic pipeline production heating device as claimed in claim 1, wherein a plastic extruder with the discharge controlled by a PLC (8) is arranged beside the plastic pipeline forming die (2), and a sizing material discharge port (5) of the plastic extruder is arranged adjacent to the electromagnetic heating ring (4).

3. The plastic pipeline production heating device as claimed in claim 2, wherein a high-frequency power supply (3) is arranged beside the electromagnetic heating ring (4), an input end of the high-frequency power supply (3) is connected with a mains supply, and an output end of the high-frequency power supply (3) is electrically connected with the electromagnetic heating ring (4).

4. A plastic pipeline production heating device according to claim 1, 2 or 3, wherein rolling devices are respectively arranged on two end portions of the X-direction moving platform (1), each rolling device comprises two rollers (6) which are adjacently arranged, and two end portions of the plastic pipeline forming mold (2) are respectively placed between the two rollers (6) of the same rolling device.

5. A plastic pipeline production heating device according to claim 4, wherein the temperature measuring device (7) is a short wave infrared temperature measuring probe.