CN216885268U - Pipe sealing machine for welding thermoplastic pipes - Google Patents

Abstract

The utility model relates to a pipe sealing machine for welding thermoplastic pipes, which comprises an upper mounting seat, a lower mounting seat, an upper heating element and a lower heating element, wherein one end of the upper mounting seat is rotatably connected with the lower mounting seat, the upper heating element is arranged on the side surface of the upper mounting seat facing the lower mounting seat, the lower heating element is arranged on the side surface of the lower mounting seat facing the upper mounting seat, and the lower mounting seat is provided with an adjusting component for adjusting the lifting height of the lower heating element. The compression amount and the pressure of the pipe between the upper heating member and the lower heating member are flexibly adjusted through the adjusting assembly, the upper heating member and the lower heating member are heated to heat the pipe, the part of the pipe which is compressed is heated and melted, the pipe with different pipe wall thicknesses can be welded under the suitable pressure, the problems that the melting part is deformed due to splitting after the condensation of the melting part caused by too small pressure or the excessive pressure caused by too large pressure are avoided, and the sealing performance and the reliability of the pipe after welding are effectively improved.

Description

Pipe sealing machine for welding thermoplastic pipes

Technical Field

The utility model relates to the technical field of welding, in particular to a pipe sealing machine for welding thermoplastic pipes.

Background

In the biopharmaceutical manufacturing process, thermoplastic sealers may be used to interconnect thermoplastic hoses on single-use reservoir systems to enable individual disconnection of bags or bag accessories in a non-sterile environment to maintain sterility of the product. The traditional technique extrudes the thermoplastic pipe through upper and lower two ceramic heating sheets, then welds the thermoplastic pipe together through heating, but weld and fuse the part and appear defect such as deformity, broken edge or welding department rupture phenomenon easily, lead to the leakproofness and the reliability of the hose after the welding poor, and the hose that traditional tube sealing machine can be hot-moulded is single moreover, is unsatisfied in the thermoplastic of multiple hose and seals.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a tube sealing machine for welding thermoplastic tubes, which can effectively improve the sealing performance and reliability of the welded thermoplastic tubes.

The utility model provides a pipe sealing machine for welding of thermoplasticity tubular product, includes the mount pad, down the mount pad, goes up heating member and lower heating member, the one end of going up the mount pad with the mount pad rotates down to be connected, it installs to go up the heating member go up the mount pad orientation the side of mount pad down, down the heating member install the mount pad orientation down go up the side of mount pad, the mount pad is equipped with and is used for adjusting down heating member elevating height's adjusting part.

In one embodiment, the adjusting assembly comprises a rotating shaft, a top wheel and a knob, one end of the top wheel and one end of the rotating shaft extend into the lower mounting seat, the top wheel is fixed on the rotating shaft, the knob is arranged outside the lower mounting seat and connected with the other end of the rotating shaft, and the top wheel is located below the lower heating element and has abutting surfaces with different radial heights.

In one embodiment, two sides of the lower mounting seat are provided with mounting grooves for placing pipes.

In one embodiment, the lower mounting seat is further provided with a shock absorption pad, and the shock absorption pad is arranged on the side surface opposite to the side surface of the upper mounting seat in the opened state.

In one embodiment, a locking member is arranged at one end, away from the rotation center of the upper mounting seat, of the lower mounting seat, the locking member comprises a locking cover and a supporting member which are connected in a rotating mode, the supporting member is connected with the lower mounting seat, and the locking cover can lock or unlock the upper mounting seat through rotation relative to the supporting member.

In one embodiment, the lower mounting base is provided with an air duct for blowing air towards the upper heating element and/or the lower heating element and/or the pipe to be welded, and a diaphragm pump for providing air cooling kinetic energy is arranged in the lower mounting base.

In one embodiment, the upper mounting seat is provided with a first detection piece for detecting whether the upper mounting seat is locked in place.

In one embodiment, a second detection piece is arranged on the lower mounting seat and used for detecting a gear of the adjusting assembly in rotation.

In one embodiment, the pipe sealing machine further includes a controller, and the controller is electrically connected to the upper heating member, the lower heating member, the first detecting member of the diaphragm pump, and the second detecting member, respectively.

In one embodiment, the pipe sealing machine further comprises a shell, the controller is arranged in the shell, a display screen is arranged on the shell, and the display screen is electrically connected with the controller; the lower mounting seat is mounted on the shell;

and/or the shell or the lower mounting seat is provided with a buzzer, and the buzzer is electrically connected with the controller.

The pipe sealing machine for welding the thermoplastic pipes has at least the following advantages:

the thermoplastic pipe to be welded is arranged on the lower heating element of the lower mounting seat, the upper mounting seat is rotated to enable the upper mounting seat to be covered on the lower mounting seat tightly, the pipe between the upper heating element and the lower heating element is pressed tightly, the lifting height of the lower heating element is adjusted through the adjusting component, and then adjust down the interval between heating member and the last heating member, thereby can be in a flexible way the regulating part is located the compression capacity and the pressure of the tubular product between heating member and the lower heating member, go up heating member and lower heating member heating realization to tubular product from top to bottom, make the partial heating melting of tubular product compressed, guarantee that the tubular product of different tube wall thickness can weld under the pressure that is fit for, avoid the pressure undersize to lead to appearing splitting after the melting partial condensation or the too big molten partial deformity scheduling problem that leads to of pressure, effectively improve the leakproofness and the reliability of welding back tubular product, satisfy the heat plastic sealing demand of multiple hose.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a pipe sealing machine in one embodiment;

FIG. 2 is a schematic flow chart of a thermoplastic pipe welding process in one embodiment.

Description of reference numerals:

10. an upper mounting seat; 110. an upper heating member; 20. a lower mounting seat; 210. a lower heating member; 220. mounting grooves; 230. a first detecting member; 30. an adjustment assembly; 310. a knob; 40. a locking member; 410. a locking cover; 420. a support member; 50. a housing; 510. a display screen.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1, an embodiment of the present application provides a pipe sealing machine for welding thermoplastic pipes, including an upper mounting base 10, a lower mounting base 20, an upper heating element 110 and a lower heating element 210, wherein one end of the upper mounting base 10 is rotatably connected to the lower mounting base 20, the upper heating element 110 is mounted on a side surface of the upper mounting base 10 facing the lower mounting base 20, the lower heating element 210 is mounted on a side surface of the lower mounting base 20 facing the upper mounting base 10, and the lower mounting base 20 is provided with an adjusting assembly 30 for adjusting a lifting height of the lower heating element 210.

When the pipe sealing machine in the above embodiment is used, a thermoplastic pipe to be welded is placed on the lower heating element 210 of the lower mounting base 20, the upper mounting base 10 is rotated to enable the upper mounting base 10 to cover the lower mounting base 20, the pipe located between the upper heating element 110 and the lower heating element 210 is compressed, the lifting height of the lower heating element 210 is adjusted through the adjusting assembly 30, and further the distance between the lower heating element 210 and the upper heating element 110 is adjusted, so that the compression amount and pressure of the pipe located between the upper heating element 110 and the lower heating element 210 by the adjusting assembly 30 can be flexibly adjusted, the upper heating element 110 and the lower heating element 210 heat the pipe up and down, the compressed part of the pipe is heated and melted, the pipe with different pipe thicknesses can be welded under appropriate pressure, and the problems that the pipe is split after the melted part is condensed due to too small pressure or the melted part is deformed due to too large pressure are avoided, effectively improve the sealing performance and the reliability of the welded pipe.

Further, the upper mounting seat 10 is rotatably connected to the lower mounting seat 20 by an elastic member such as a torsion spring and a rotation shaft, and the upper mounting seat 10 is automatically opened by the elastic member.

Further, the pipe sealing machine includes a controller, the upper heating element 110 and the lower heating element are electrically connected with the controller, and the control of the heating temperature is realized.

Optionally, in one embodiment, the adjusting assembly 30 includes a rotating shaft, a top wheel and a knob 310, one end of the top wheel and the rotating shaft extends into the lower mounting seat 20, the top wheel is fixed on the rotating shaft, the knob 310 is disposed outside the lower mounting seat 20 and connected to the other end of the rotating shaft, the top wheel is located below the lower heating element 210, and the top wheel has abutting surfaces with different radial heights. Through rotating knob 310, drive the pivot and rotate, and then drive the top wheel and rotate, when the tubular product pipe wall was thick, rotated the lower butt face of radial height with the top wheel, made the lower heating member 210 with this butt face butt descend to make the interval increase between lower heating member 210 and the last heating member 110, avoid tubular product compression capacity and the too big deformity that appears after leading to the cooling of melting part. When the pipe wall of the pipe is thin, the top wheel is rotated to the abutting surface with the higher radial height, so that the lower heating element 210 abutted to the abutting surface is lifted, the distance between the lower heating element 210 and the upper heating element 110 is reduced, and the phenomenon that the pipe is broken after the molten part is cooled due to the over-low compression amount and pressure of the pipe is avoided. In other embodiments, the adjusting assembly 30 may also use a telescopic cylinder or a rack and pinion to adjust the position of the lower heating element 210. The adjustment assembly 30 may be manually adjustable; in other embodiments, the adjustment may be automatically performed by the controller of the pipe sealing machine.

Further, in one embodiment, the lower mounting seat 20 is provided with mounting grooves 220 for placing pipes on two sides. The pipe to be welded is arranged in the mounting groove 220, so that the pipe to be welded is quickly limited between the upper heating element 110 and the lower heating element 210, the welding reliability is ensured, and the welding efficiency is improved.

Optionally, a shock pad is further disposed on the lower mounting seat 20, and the shock pad is disposed on a side surface opposite to the side surface of the upper mounting seat 10 in the opened state, so that damage to the device due to impact when the upper mounting seat 10 is opened is avoided.

Optionally, one end of the lower mounting seat 20, which is far away from the rotation center of the upper mounting seat 10, is provided with a locking member 40, the locking member 40 includes a locking cover 410 and a supporting member 420 which are rotatably connected, the supporting member 420 is connected with the lower mounting seat 20, the locking cover 410 is opposite to the supporting member 420, and can be locked or opened by rotation of the upper mounting seat 10, so that reliable closing between the upper mounting seat 10 and the lower mounting seat 20 is realized, and safety accidents are avoided. An elastic element such as a torsion spring is disposed between the locking cover 410 and the support 420 to achieve reliable closing of the locking cover 410 and self-recovery of the opening.

In one embodiment, the tube sealing machine further includes a housing 50, the controller is disposed in the housing 50, a display screen 510 is disposed on the housing 50, and the display screen 510 is electrically connected to the controller. The lower mount 20 is mounted to the housing 50. The welding process is visually displayed through the full-flow monitoring of the display screen 510, and welding technology statistics can be carried out.

Optionally, a first detecting element 230 is disposed on the upper mounting base 10, and the first detecting element 230 is electrically connected to the controller, and is configured to detect whether the upper mounting base 10 is locked in place; the method can effectively avoid accidental injury caused by starting the process in a non-cover-closing state. The first detecting member 230 may use a hall sensor for position detection and signal transmission.

Optionally, a second detecting element is disposed on the lower mounting base 20, and the second detecting element is electrically connected to the controller and is configured to detect a gear position of the knob 310 of the adjusting assembly 30; can require according to different wall thickness pipelines, through knob 310 adjustment gear, with the accurate gear signal of gathering of second detection piece, transmit for the controller, show in real time on display screen 510, mechanical knob 310 gear and display screen 510 control gear can carry out the gear of reinspecting, prevent to make mistakes. The second detection piece can adopt a Hall sensor to carry out position detection and signal transmission.

Optionally, the controller of the pipe sealing machine is provided with a hall failure operation mechanism, and once the hall failure operation mechanism occurs or the hall sensor fails, the detection function can be closed, so that the normal operation of the equipment can be ensured.

In one embodiment, the lower mounting base 20 is provided with an air duct for blowing air to the upper heating element 110 and/or the lower heating element 210 and/or the pipe to be welded, and a diaphragm pump for providing air-cooling kinetic energy is arranged in the lower mounting base 20. The diaphragm pump is electrically connected with the controller. The air duct design enlarges the direct contact area of the air flow with the upper heating element 110, the lower heating element 210 and the pipe, and improves the cooling rate.

Optionally, the controller of the tube sealing machine has a protection mechanism, and in case of failure, if the temperature of the upper heating element 110 and/or the lower heating element 210 is higher than the safety temperature of human body contact, the diaphragm pump is started and an alarm and a risk prompt of uncapping appear on the display screen 510, and the uncapping cannot be performed until the temperature is lower than the safety temperature.

Optionally, the shell 50 or the lower mounting seat 20 is provided with a buzzer, the buzzer is electrically connected with the controller, and when the pipe sealing machine is abnormal, a sound prompt is given.

Referring to fig. 2, an embodiment of the present application provides a method for welding thermoplastic pipes, which may use the pipe sealing machine of any of the above embodiments, and the method includes the following steps:

s00: adjusting the distance between the upper heating element 110 and the lower heating element 210 according to the thickness of the pipe wall of the pipe to be welded so that the pipe to be welded is under a preset pressure;

after the pipe materials with different wall thicknesses are clamped by the upper heating element 110 and the lower heating element 210, different heights are formed between the upper heating element 110 and the lower heating element 210, and for the pipe materials with thinner pipe walls, the distance between the upper heating element 110 and the lower heating element 210 is reduced, so that the pipe materials are under proper pressure, and the phenomenon that the fused part is cracked after being cooled due to insufficient pressure is avoided; for the pipe with thicker pipe wall, the distance between the upper heating element 110 and the lower heating element 210 is adjusted to be larger, so that the pipe is under proper pressure, and the defect that the molten part is cooled due to overlarge pressure is avoided. The rationalized compression amount is confirmed for different pipe diameters, and the welding reliability is ensured.

Optionally, the pipe wall thickness of the pipe to be welded can be manually judged, so as to adjust the distance between the upper heating element 110 and the lower heating element 210 of the pipe sealing machine; or the wall thickness of the welded pipe is manually input, the controller automatically calls the parameters corresponding to the wall thickness of the pipe and stored in the system in advance, and the distance between the upper heating element 110 and the lower heating element 210 is automatically adjusted. In other embodiments, the wall thickness of the welded pipe may be automatically determined by a probe, such as a CCD, and transmitted to the controller, and the controller may retrieve a parameter corresponding to the wall thickness of the welded pipe, which is pre-stored in the system, according to the obtained wall thickness of the welded pipe, and automatically adjust the distance between the upper heating element 110 and the lower heating element 210.

S100: according to the characteristics of the pipe to be welded, the temperature of the upper heating element 110 and the lower heating element 210 of the pipe sealing machine is controlled to be increased, so that the pipe to be welded, which is arranged between the upper heating element 110 and the lower heating element 210, is preheated at a first temperature for T1 time.

In one embodiment, the characteristics of the pipe to be welded include the material of the pipe. In one embodiment, the properties of the pipe to be welded include the medium inside the pipe, such as oil, water or air inside the pipe (empty pipe). In other embodiments, the characteristics of the pipe to be welded include the material of the pipe and the medium inside the pipe.

Optionally, the characteristics of the pipe to be welded can be judged manually, and then the pipe sealing machine is configured with relevant parameters; or the characteristics of the pipe to be welded are manually input, and the controller automatically calls the parameters which are stored in the system in advance and correspond to the characteristics. In other embodiments, the characteristics of the pipes to be welded can be automatically judged through a probe such as a CCD and the like and transmitted to the controller, and the controller invokes parameters corresponding to the characteristics, which are pre-stored in the system, according to the acquired characteristics of the pipes to be welded, and performs specific welding temperature and time duration control on the pipes to be welded with different characteristics.

Specifically, if the pipe to be welded is an empty pipe, the first temperature is 80-110 ℃; t1 is 10s-20 s.

If the pipe to be welded is a water-carrying matrix solution pipe, the first temperature is 80-95 ℃; t1 is 10s-20 s. If the pipe to be welded is a solution pipe with an oily matrix, the first temperature is 80-100 ℃; t1 is 2s-5 s.

S200: and controlling the upper heating elements 110 and the lower heating elements 210 to continue to be heated, so that the pipes to be welded, which are arranged between the upper heating elements 110 and the lower heating elements 210, are heated and melted at a second temperature for T2 time.

Specifically, if the pipe to be welded is an empty pipe, the second temperature is 110-130 ℃; t2 is 10s-25 s. If the pipe to be welded is a water-carrying matrix solution pipe, the second temperature is 110-130 ℃; t2 is 10s-20 s.

If the pipe to be welded is a solution pipe with an oily matrix, the second temperature is 135-150 ℃; t2 is 2s-3 s.

S300: and cooling the pipe to be welded to finish welding.

Specifically, the air duct in the tube sealing machine is controlled to blow air to the upper heating element 110 and/or the lower heating element 210 and/or the tube to be welded, so that the cooling rate of the tube to be welded is increased, the molten part is rapidly solidified and formed, and the molten part is bonded together to achieve the purpose of sealing.

Optionally, in one embodiment, before controlling the upper heating element 110 and the lower heating element 210 of the pipe sealing machine to increase the temperature, the method further includes the following steps:

it is detected whether the upper heating member 110 and/or the lower heating member 210 are normally closed. Specifically, the detection may be performed by a detection element provided between the upper heating member 110 and the lower heating member 210, and the detection result may be transmitted to the controller.

And if the cover is not normally closed, controlling the prompting piece to send a prompting signal. Specifically, if the controller receives a detection result that the cover is not normally closed, the buzzer is controlled to give an alarm sound, the indicator lamp is controlled to give an alarm light, the display screen 510 is controlled to display alarm information, and the like, so that accidental injury caused by starting a process in a non-cover-closing state is avoided.

Optionally, in one embodiment, the welding method of the thermoplastic pipe further includes the following steps:

the temperature values of the upper heating member 110 and/or the lower heating member 210 are detected. Specifically, the temperature value may be detected by a temperature sensor provided on the upper heating member 110 and/or the lower heating member 210, and the detection result may be transmitted to the controller.

And if the temperature value exceeds the preset temperature, controlling the prompting piece to send a prompting signal. Specifically, if the controller receives a detection result that the temperature value exceeds the preset temperature, the buzzer is controlled to send an alarm sound and/or the indicator lamp is controlled to send an alarm light and/or the display screen 510 is controlled to display alarm information and the like, so that the welding effect is prevented from being influenced due to abnormal heating temperature.

In one embodiment, the controller comprises a memory and a processor, the memory stores a computer program, and the computer program is executed by the processor to implement all or part of the steps of the thermoplastic pipe welding method of any one of the above embodiments.

In the tube sealing machine for welding the thermoplastic tube and the welding method for the thermoplastic tube in the embodiment, the pressure of the tube to be welded can be correspondingly adjusted according to the diameter of the tube, and specific temperature control treatment can be performed according to the characteristics of the tube to be welded, so that the tube to be welded is firstly heated to a first temperature and is kept at the first temperature for T1 preheating time, the temperature of each part of the tube to be welded reaches a preset temperature, and the influence on the welding effect caused by the heat and the cold of the outer surface and the inner surface of the tube is avoided; then, continuously heating the pipe to be welded to the second temperature, and keeping the pipe at the second temperature for heating and melting T2, so that the pipe between the upper heating element 110 and the lower heating element 210 is uniformly heated to be in a molten state; and finally, cooling the pipe to be welded to bond the molten parts of the pipe together to finish welding. The whole welding process is controlled in stages, the temperature control range of each stage is reduced, the temperature of each stage can be effectively and accurately controlled in time, the first temperature, the T1 time, the second temperature and the T2 time are flexibly adjusted for pipes with different characteristics, the temperature control stability is improved, and the sealing performance and the reliability of the welded pipes are further effectively improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. The utility model provides a be used for thermoplasticity tubular product welded tube sealing machine, its characterized in that, tube sealing machine includes the mount pad, down the mount pad, goes up heating member and lower heating member, the one end of going up the mount pad with the mount pad rotates down to be connected, it installs to go up the heating member go up the mount pad orientation the side of mount pad down, down the heating member install the mount pad orientation down go up the side of mount pad, the mount pad is equipped with and is used for adjusting down heating member height-adjusting part.

2. The tube sealing machine for welding the thermoplastic tubes as claimed in claim 1, wherein the adjusting assembly comprises a rotating shaft, a top wheel and a knob, one end of the top wheel and one end of the rotating shaft extend into the lower mounting seat, the top wheel is fixed on the rotating shaft, the knob is arranged outside the lower mounting seat and connected with the other end of the rotating shaft, the top wheel is located below the lower heating element, and the top wheel has abutting surfaces with different radial heights.

3. The pipe sealing machine for welding the thermoplastic pipes as claimed in claim 1, wherein mounting grooves for placing the pipes are formed on two sides of the lower mounting seat.

4. The tube sealing machine for welding thermoplastic tubes according to claim 1, wherein a shock absorbing pad is further disposed on the lower mounting seat, and the shock absorbing pad is disposed on a side surface opposite to the opened state of the upper mounting seat.

5. The tube sealing machine for welding the thermoplastic tubes as claimed in claim 1, wherein a locking member is disposed at an end of the lower mounting seat away from the rotation center of the upper mounting seat, the locking member includes a locking cover and a supporting member, the supporting member is rotatably connected to the lower mounting seat, and the locking cover is rotatable relative to the supporting member to lock or unlock the upper mounting seat.

6. The pipe sealing machine for welding the thermoplastic pipes according to any one of claims 1 to 5, wherein the lower mounting seat is provided with an air duct for blowing air towards the upper heating element and/or the lower heating element and/or the pipe to be welded, and a diaphragm pump for providing air-cooling kinetic energy is arranged in the lower mounting seat.

7. The tube sealing machine for welding the thermoplastic tubes as claimed in claim 6, wherein the upper mounting seat is provided with a first detecting member for detecting whether the upper mounting seat is locked in place.

8. The pipe sealing machine for welding thermoplastic pipes according to claim 7, wherein a second detecting member is disposed on the lower mounting seat for detecting a gear position of the rotation of the adjusting assembly.

9. The tube sealing machine for welding the thermoplastic tubes according to claim 8, further comprising a controller electrically connected to the upper heating element, the lower heating element, the first detecting element of the diaphragm pump and the second detecting element, respectively.

10. The pipe sealing machine for welding thermoplastic pipes according to claim 9, further comprising a housing, wherein the controller is disposed in the housing, a display screen is disposed on the housing, and the display screen is electrically connected to the controller; the lower mounting seat is mounted on the shell;

and/or the shell or the lower mounting seat is provided with a buzzer, and the buzzer is electrically connected with the controller.

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