Plastic pipe head heater
By designing the workbench, hot melter, base, rotating cover plate, and auxiliary support platform in a coordinated manner, the problem of traditional plastic tube head heaters being unable to guarantee coaxiality is solved, achieving a more efficient and robust plastic tube connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional plastic tube head heaters cannot guarantee the coaxiality of the plastic tube during the heating process, resulting in poor connection quality.
A heater comprising a worktable, a hot melter, a base, a rotating cover plate, and an auxiliary support platform was designed. Through the cooperation of an electric push rod and a motor, the plastic tube is ensured to maintain coaxiality during heating and docking, and docking time is saved by the active retraction of the electric push rod.
It improves the docking effect and connection quality of plastic pipes, reduces the temperature drop of plastic pipes after heating, and enhances the firmness of the connection and the standardization of operation.
Smart Images

Figure CN224060486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic pipe hot melt butt welding technology, specifically a plastic pipe head heater. Background Technology
[0002] Plastic pipes are generally made from synthetic resin, namely polyester, with the addition of stabilizers, lubricants, plasticizers, etc., and are processed by extrusion in a pipe-making machine using the "plastic" method. Plastic pipes are divided into two main categories: thermoplastic plastic pipes and thermosetting plastic pipes. Thermoplastic pipes include polyvinyl chloride pipes, polyethylene pipes, polypropylene pipes, polyoxymethylene pipes, etc. In the process of using plastic pipes, it is sometimes necessary to heat the ends of two plastic pipes to connect them, so plastic pipe end heaters are widely used.
[0003] Traditional plastic tube heaters typically involve the operator holding two plastic tubes by hand and pushing them into the heater for heating. This method cannot guarantee the coaxiality of the plastic tubes and the heating unit, which may cause misalignment. The heated plastic tubes may be crooked, making subsequent connection difficult. After heating, workers manually pick up and connect the tubes. However, the shaking caused by the human hand during the connection process, and the inability to guarantee the coaxiality of the two plastic tubes, all affect the connection quality. Utility Model Content
[0004] To address the aforementioned issues, this application provides a plastic tube head heater, which solves the problem that manual operation cannot guarantee coaxiality during the heating and subsequent docking of plastic tubes, resulting in poor docking performance.
[0005] A plastic tube head heater includes a workbench, a heat melter for heating plastic tubes is movably installed on the top of the workbench, two bases are symmetrically installed on the top of the workbench, and a rotating cover plate is movably installed on the top of the base. The bases and the rotating cover plate are each provided with a semi-circular through hole that slides and engages with the plastic tube at one end close to each other.
[0006] The telescopic end of an electric push rod is fixedly installed on the outside of the hot melt machine, and the output end of a motor is fixedly installed on the outside of the rotating cover plate;
[0007] A foot-operated pressure switch is fixedly installed on the outer side of the workbench near the ground, and the pressure switch is electrically connected to the electric push rod.
[0008] Furthermore, the electric push rod is fixedly installed on the top of the workbench, and an auxiliary slide rod is slidably installed through the outside of the hot melter. Both ends of the auxiliary slide rod are fixedly installed with fixing blocks, which are fixedly installed on the top of the workbench.
[0009] Furthermore, an auxiliary support platform is installed on the outer periphery of the end of the base away from the hot melter, and a semi-circular through hole is opened on the top of the auxiliary support platform to slide with the plastic tube.
[0010] Furthermore, a base plate is fixedly installed at the bottom of the base, and the base plate is fixedly connected to the workbench by bolts. A fixing column is fixedly installed between the bottom of the motor and the top of the base plate, and an auxiliary support platform is fixedly installed on the top of the base plate.
[0011] Furthermore, multiple ball bearings are rotatably installed within the through hole in the center of the base and rotating cover.
[0012] Furthermore, the through holes at the ends of the base, rotating cover plate, and auxiliary support platform are coaxial with the heating ring and heating column of the hot melter.
[0013] The beneficial effects of this utility model are as follows:
[0014] The plastic tube head heater described in this utility model allows for the coaxial completion of both heating and joining of the plastic tube with the assistance of a base, rotating cover plate, and auxiliary support platform. This improves the joining effect of the plastic tube and makes the operation more standardized. In addition, in the prior art, the heated plastic tube needs to be pulled out and then bypassed by the heat melter before joining. In this heater, the heat melter actively retracts, saving joining time and resulting in less temperature drop of the plastic tube during joining, leading to a more secure joint. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 A schematic diagram of the overall structure of a plastic tube head heater provided by this utility model;
[0017] Figure 2 This utility model provides a schematic diagram of the motor connection for a plastic tube head heater.
[0018] Figure 3 for Figure 1 Enlarged view of point A.
[0019] In the picture:
[0020] 1. Workbench; 2. Hot melt machine; 3. Auxiliary slide bar; 4. Fixing block; 5. Electric push rod; 6. Base plate; 7. Pressure switch; 8. Base; 9. Rotating cover plate; 10. Motor; 11. Auxiliary support platform; 12. Fixing column. Detailed Implementation
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.
[0022] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model embodiment provides a plastic tube head heater, including a workbench 1. A heat melter 2 for heating plastic tubes is movably installed on the top of the workbench 1. Two bases 8 are symmetrically installed on the top of the workbench 1. A rotating cover plate 9 is movably installed on the top of the bases 8. Both the bases 8 and the rotating cover plate 9 have semi-circular through holes that slide and engage with the plastic tube at one end close to each other. These holes are used to calibrate the plastic tube so that it is coaxial with the heating component of the heat melter 2 and is not easily tilted.
[0023] In this embodiment, during heating, the heat melter 2 is powered on and heated. The operator simultaneously pushes the two plastic tubes horizontally through the base 8 and the rotating cover 9 to straighten the plastic tubes so that they are coaxial with the heating component of the heat melter 2. The process continues to push the plastic tubes and heat them. After heating is complete, the two plastic tubes are moved away from the heating component of the heat melter 2. During this process, the heating and connection of the plastic tubes are completed coaxially with the assistance of the base 8 and the rotating cover 9, which improves the connection effect of the plastic tubes and makes the operation more standardized.
[0024] Specifically, the telescopic end of the electric push rod 5 is fixedly installed on the outside of the hot melter 2, which is used to move the hot melter 2, replace the required heating components, or make way for the docking of the heated plastic tube, saving docking time. The output end of the motor 10 is fixedly installed on the outside of the rotating cover plate 9. After docking, the rotating cover plate 9 is flipped under the drive of the motor 10, making it convenient for the staff to take out the docked plastic tube.
[0025] A foot-operated pressure switch 7 is fixedly installed on the outer side of the workbench 1 near the ground, which is convenient for workers holding plastic tubes to press. The pressure switch 7 is electrically connected to the electric push rod 5.
[0026] In this embodiment, after heating is complete, the two plastic tubes are moved away from the heating assembly of the heat melter 2. The pressure switch 7 is stepped on, and the pressure switch 7 controls the electric push rod 5 through the data processor. The telescopic end of the electric push rod 5 is shortened, causing the heat melter 2 to move backward away from the plastic tubes. The operator continues to push the two plastic tubes so that the two plastic tubes are coaxially connected. After the connection is completed, the motor 10 rotates, causing the rotating cover plate 9 to flip away from the base 8. The operator removes the plastic tubes. In the prior art, the heated plastic tubes need to be pulled out and then bypassed by the heat melter 2 for connection. In this heater, the heat melter 2 actively moves away, saving connection time and resulting in less temperature drop of the plastic tubes during connection, making the connection more secure.
[0027] Specifically, the electric push rod 5 is fixedly installed on the top of the workbench 1, and an auxiliary slide rod 3 is slidably installed through the outside of the hot melter 2 to facilitate the movement of the hot melter 2. Fixing blocks 4 are fixedly installed at both ends of the auxiliary slide rod 3, and the fixing blocks 4 are fixedly installed on the top of the workbench 1.
[0028] Specifically, an auxiliary support platform 11 is installed on the outer periphery of the end of the base 8 away from the hot melter 2. The through holes opened at the ends of the base 8, the rotating cover plate 9, and the auxiliary support platform 11 are coaxial with the heating ring and heating column of the hot melter 2. A semi-circular through hole is opened through the top of the auxiliary support platform 11 to slide with the plastic tube, which serves as a pre-aiming function, making it convenient for the staff to pass the plastic tube through the base 8 and the rotating cover plate 9.
[0029] Specifically, a base plate 6 is fixedly installed at the bottom of the base 8, which facilitates the replacement of the base 8 and the rotation of the cover plate 9 by the staff to accommodate plastic tubes with different apertures. The base plate 6 is fixedly connected to the workbench 1 by bolts. A fixing column 12 is fixedly installed between the bottom of the motor 10 and the top of the base plate 6. An auxiliary support platform 11 is fixedly installed on the top of the base plate 6.
[0030] In this embodiment, the heating column and heating ring on the outside of the hot melter 2 are selected according to the diameter of the plastic tube to be heated. The telescopic end of the electric push rod 5 is extended or moved so that its end is coaxial with the base 8. The required base 8, rotating cover plate 9, and auxiliary support platform 11 are replaced.
[0031] Specifically, multiple ball bearings are rotatably installed in the through hole in the middle of the base 8 and the rotating cover plate 9 to reduce the moving resistance of the plastic tube and reduce frictional damage to the plastic tube.
[0032] Specific working methods:
[0033] Select the required heating column and heating ring on the outside of the heat melter 2 according to the diameter of the plastic tube to be heated. Extend or move the telescopic end of the electric push rod 5 so that its end is coaxial with the base 8. Replace the required base 8, rotating cover plate 9, and auxiliary support platform 11.
[0034] During heating, the heat melter 2 is powered on and heated. The operator places two plastic tubes simultaneously on top of the two auxiliary support platforms 11, horizontally pushing them through the base 8 and rotating cover 9 to align the plastic tubes so that they are coaxial with the heating element of the heat melter 2. The operator continues pushing, heating the plastic tubes. After heating is complete, the two plastic tubes are moved away from the heating element of the heat melter 2. The operator then steps on the pressure switch 7, which, via a data processor, controls the electric push rod 5. The extension end of the electric push rod 5 shortens, causing the heat melter 2 to retract away from the plastic tubes. The operator continues pushing the two plastic tubes, causing them to... The plastic tubes are coaxially connected. After the connection is completed, the motor 10 rotates, causing the rotating cover plate 9 to flip away from the base 8. The operator then removes the plastic tubes. During this process, the heating and connection of the plastic tubes are completed coaxially with the assistance of the base 8, the rotating cover plate 9, and the auxiliary support platform 11, which improves the connection effect of the plastic tubes and makes the operation more standardized. Moreover, in the existing technology, the heated plastic tubes need to be pulled out and then bypassed by the heat melter 2 before connection. In this heater, the heat melter 2 actively retracts, saving connection time and resulting in less temperature drop of the plastic tubes during connection, leading to a stronger connection.
[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A plastic pipe head heater comprising a workbench (1), a hot melter (2) for heating plastic pipe is movably mounted on the top of the workbench (1), characterized in that: The workbench (1) top symmetry is equipped with two base (8), base (8) top movable installation has rotating cover plate (9), base (8), rotating cover plate (9) are close to each other one end are all through the opening has with the plastic pipe sliding joint cooperation semicircle through hole; The hot melt device (2) is fixedly installed with the extension end of the electric push rod (5) outside, and the output end of the motor (10) is fixedly installed outside the rotating cover plate (9); The workbench (1) is fixedly installed with the pressure switch (7) of stepping on outside near ground, and the pressure switch (7) is electrically connected with the electric push rod (5).
2. A plastic pipe end heater according to claim 1, characterised in that: The electric push rod (5) is fixedly installed on the top of the workbench (1), the hot melt device (2) is slidably installed outside, and the auxiliary slide rod (3) is fixedly installed at both ends of the auxiliary slide rod (3).
3. A plastic pipe end heater according to claim 1, wherein: The base (8) is fixedly installed with the auxiliary support table (11) outside away from the hot melt device (2), and the auxiliary support table (11) is fixedly installed with the semicircle through hole on the top of the base (8).
4. A plastic pipe end heater as claimed in claim 3, characterised in that: The bottom plate (6) is fixedly connected with the workbench (1) through bolts, and the fixed column (12) is fixedly installed between the bottom of the motor (10) and the top of the bottom plate (6).
5. A plastic pipe end heater as defined in claim 1, wherein: The through hole in the middle of the base (8) and the rotating cover plate (9) is embedded with a plurality of ball bearings.
6. A plastic pipe end heater as claimed in claim 3, characterised in that: The through hole of the base (8), the rotating cover plate (9) and the auxiliary support table (11) is coaxial with the heating ring and the heating column of the hot melt device (2).