A kind of plastics pipe welding device
Technical field
The present invention relates to plastic tube technical field more particularly to a kind of plastics pipe welding devices.
Background technique
Plastics welding refers to and makes the contact surface of two plastic parts with heating means while melting, so that them be made to be combined into
A whole connection method.
The plastic welding technology of the prior art includes hot plate welding, hot air welding, hot pin and pulse welding etc..
Hot plate welding is will to remove rapidly electric hot plate after two flat fusions that need to be welded softening by plane electric hot plate to merge
Two planes are simultaneously reinforced to cooling.Hot air welding refers to when hot-air flow directly blows to seaming zone, causes seaming zone same with base material
The filler wire of material melts.Hot pin and pulse welding this two technologies are used primarily in the weldering of the connection smaller plastic film of thickness
It connects.
Plastic tube socket weld welder disclosed in Chinese patent application CN105150523A, by two plastics
Interface it is inside and outside be respectively set heating element, when work, by connecting heating element, realize that two plastics its interfaces are inside and outside same
Step welding.The technical solution is using integral solder, i.e. contact between heating element and interface is face contact, and heating unit
Part often remains static at work, in this way, the tube body after melting can adhere on the heating element, and is not easily cleaned, when
Between long formation impurity effect adhesive strength.
House ornamentation plastic pipe sweating welder disclosed in Chinese patent application CN207128280U, although the technical solution exists
It is provided on heat melting device provided with temperature sensor and reminding alarm device, temperature sensor is aobvious by red and green luminous diode
Show and heating or heating completion, timing means is set, remind weld time to terminate by alarm, so that reminding will melt in real time
Tube body after melting mutually is separated with heat melting device, reduces the appearance of adhesion.But it still cannot thoroughly solve face contact and be brought
The problem of, and it is harsh to realize that operation requires.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides the medial and lateral for being able to achieve its interface of two plastic tubes to be welded
It is synchronous to use campaign-styled circulation spot welding, guarantee weld strength, reduce continuously contacting between heating element after plastic tube softening
The plastics pipe welding device of area.
The present invention is realized by following technological means solves a kind of above-mentioned technical problem: plastics pipe welding device, including
Welding bench, thermofusion device, two plastic tubes to be welded are on the welding bench after pairing, by the thermofusion device to described
The interface of two plastic tubes to be welded is welded;The thermofusion device includes external fixed guide ring, telescopic device, interior
Set fixed guide ring, external heating rod, built-in heating rod, the telescopic end company of the built-in fixed guide ring and the telescopic device
It connects, the telescopic end stretching motion of the telescopic device can drive the built-in fixed guide ring from a wherein plastics to be welded
The end of the internal cavity of pipe is moved to the inner cavity of the interface and guarantees the built-in fixed guide ring and the interface
With one heart;
The built-in heating rod is slidably matched with the built-in fixed guide ring, and described built-in its end of heating rod can be with institute
State the inseam contact of interface;The periphery of the interface and same with the interface is arranged in the external fixed guide ring
The heart;
The external heating rod is slidably matched with the external fixed guide ring, and described its end of external heating rod can be with institute
State the external seam contact of interface.
Preferably, the welding bench includes the first Hough bearing platform being oppositely arranged, the second Hough bearing platform, each Kazakhstan
The opening of husband's bearing platform is upward.
Preferably, the trapezoidal structure in its end of the one end contacted in all heating rods with the interface.
Preferably, the built-in fixed guide ring is fixed on its telescopic end of the telescopic device by reinforcing rib;In described
The in-between region invagination of fixed guide ring is set, described built-in its section of fixed guide ring is caused to form U-shaped or v-shaped structure;?
Described built-in its two sides for invaginating region of fixed guide ring offer annular through groove;The two sides point of built-in its inner end of heating rod
It is not slidably matched and is placed in corresponding annular through groove, described built-in its outer end of heating rod can be sewed up with the inscribed of the interface
Touching;Also be rotatably connected to first gear on its telescopic end of the telescopic device, the edge of the first gear with it is described built-in
It is connected between heating rod by connecting rod, the first gear drives its rotation by driving mechanism.
Preferably, the driving mechanism includes second gear, driving motor, and the second gear is nibbled with the first gear
It closes, and its rotation is driven by the driving motor.
Preferably, circular orbit is offered on the external fixed guide ring, the external heating rod passes through electrically driven treadmill
It is slidably matched with the external fixed guide ring;The idler wheel of the electrically driven treadmill limits in the circular orbit.
Preferably, it is provided with gripper cylinder in the two sides of the welding bench, not ipsilateral gripper cylinder moves toward one another use
To clamp two plastic tubes to be welded.
Preferably, the first conductor being electrically connected with the built-in heating rod is in contact with the first carbon brush, and described built-in
The second conductor that heating rod is electrically connected is in contact with the second carbon brush.
Preferably, described built-in its quantity of heating rod is multiple, is distributed structure in a ring.
Invention first by by two plastic tubes to be welded relatively after so that its ending connection, ending join domain be
Interface, and guarantee external fixed guide ring housing in the periphery of interface, and external heating rod and the external of interface are sewed up
Touching.Then start telescopic device of the invention, the telescopic end stretching motion of telescopic device drives built-in fixed guide ring to stretch to
Until the inner cavity of interface, built-in heating rod is contacted with the inseam of interface at this time.Start simultaneously built-in heating rod, it is external plus
Hot pin, built-in heating rod, external heating rod respectively around built-in fixed guide ring, external fixed guide ring rotate, and it is built-in plus
Hot pin, the continuous heat production of external heating rod are respectively acting on the inseam of interface, external seam, gradually realize the softening of interface, make
Two plastic tube hot synthetic types are obtained, after cooling, complete welding procedure.
The present invention has the advantages that first, being realized using built-in fixed guide ring, external fixed guide ring as track
The circulatory motion of built-in heating rod, external heating rod greatly subtracts under the premise of guaranteeing sufficiently to heat interface medial and lateral
The contact area between heating element and interface is lacked, after avoiding hot melt, the phenomenon that large area adherency occurs in heating element;Its
Two, using the positioning action of built-in fixed guide ring, external fixed guide ring, guarantee built-in heating rod, the rotation of external heating rod
In the process to the accuracy of target position active position, and then it is effectively prevent the offset of heating rod, influences the accuracy of welding;Third,
The present invention is able to achieve interface medial and lateral synchronous welding, and cooperates built-in fixed guide ring to solve in interface by telescopic device
The technical issues of side welding hardly possible positioning.Telescopic device of the invention is preferably one kind of cylinder, oil cylinder or electric pushrod.
Further, built-in heating rod is slidably matched with built-in fixed guide ring, its end of built-in heating rod energy and interface
Inseam contact.The periphery of interface and concentric with interface is arranged in external fixed guide ring.
Further, two plastic tubes to be welded can be put into respectively to corresponding Hough load-bearing by the present invention from top to bottom
In platform, and using the cavity structure of its circular arc of Hough bearing platform, certain position-limiting action is played.
Further, the two tubes connected for socket joint, the first tube body, the second tube body, inside, the outside of interface are equal
For step structure, trapezoidal structure is arranged in the end of the one end contacted in heating rod with interface by the present invention, is convenient for and interface
Corresponding step structure matches in place, improves the stability, accuracy and high efficiency of joint weld.
Further, the present invention is rotated by driving motor, driving second gear rotation, so that driving is engaged with second gear
First gear rotation, and then realize the rotation of connecting rod, and then realize that built-in heating rod is rotated around built-in fixed guide ring.
The present invention drives the mode of built-in heating rod rotation to have the advantages that easy to operate, cooperation is with high accuracy.Compared to directly built-in solid
Determine that electrically driven treadmill is arranged on guide ring, mechanical stability of the present invention is more stronger, and since built-in structure is inconvenient at work
In directly observing, can not be monitored online using built-in electrically driven treadmill.
Further, the present invention at work, by start gripper cylinder so that not ipsilateral gripper cylinder extends in opposite directions
Movement clamps two plastic tubes to be welded, improves the stability of plastic tube positioning, effectively prevent in the welding process, plastics
By external force the offset of position is occurred for pipe.
Further, the present invention realizes the heating of each heating rod by the way of external power supply, the side cooperated using carbon brush
Formula solves the problems, such as that heating rod rotation causes conductor to be entwined.Compared to using the heating rod for having electrical storage device, the present invention can expire
Welding between the various power consumption load tube bodies of foot, is not restricted by charge capacity.
Further, the present invention is preferably to forcing weld strength on the inside of tube body.Its quantity of built-in heating rod is multiple, distribution
Structure in a ring.And then welding point is improved, improve welding efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the plastics pipe welding device of the present invention in the case where overlooking visual angle.
Fig. 2 is the partial enlarged view of Fig. 1 in the present invention.
Fig. 3 is the structural schematic diagram under a kind of end face visual angle of plastics pipe welding device of the present invention.
Fig. 4 is the structural schematic diagram under a kind of side visual angle of plastics pipe welding device of the present invention.
Fig. 5 is the structural schematic diagram of built-in fixed guide ring in a kind of plastics pipe welding device of the present invention.
Fig. 6 is the knot of the first tube body, the second tube body under socket weld state in a kind of plastics pipe welding device of the present invention
Structure schematic diagram.
Fig. 7 is the structural representation of each fixed guide ring in the operating condition in a kind of plastics pipe welding device of the present invention
Figure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Embodiment 1
As shown in Figure 1, 2, the present embodiment discloses a kind of plastics pipe welding device, including welding bench 1, thermofusion device, to be welded
Two plastic tubes connect after pairing, are carried out on welding bench 1 by interface of the thermofusion device to two plastic tubes to be welded
Welding.Thermofusion device includes external fixed guide ring 21, telescopic device 22, built-in fixed guide ring 23, external heating rod 24, interior
Heating rod 25 is set, built-in fixed guide ring 23 is connect with the telescopic end of telescopic device 22, and the telescopic end of telescopic device 22 extends fortune
Kinetic energy drives built-in fixed guide ring 23 to be moved to interface from the end of the wherein internal cavity of a plastic tube to be welded
Inner cavity and guarantee that built-in fixed guide ring 23 is concentric with interface.
Built-in heating rod 25 is slidably matched with built-in fixed guide ring 23, and built-in its end of heating rod 25 can be with interface
Inseam contact.
As shown in Figure 3,4, the periphery of interface and concentric with interface is arranged in external fixed guide ring 21.External heating
Stick 24 is slidably matched with external fixed guide ring 21, and external its end of heating rod 24 can be contacted with the external seam of interface.
The present invention first by by two plastic tubes to be welded relatively after so that its ending connection, finish up join domain
For interface, and guarantee external 21 housing of fixed guide ring in the periphery of interface, and external heating rod 24 and interface is outer
Seam contact.Then start telescopic device 22 of the invention, the telescopic end stretching motion of telescopic device 22 drives built-in fixation to lead
Until the inner cavity for stretching to interface to ring 23, built-in heating rod 25 is contacted with the inseam of interface at this time.Simultaneously in starting
Set heating rod 25, external heating rod 24, built-in heating rod 25, external heating rod 24 are respectively around built-in fixed guide ring 23, outer
The rotation of fixed guide ring 21 is set, and built-in heating rod 25, the continuous heat production of external heating rod 24 are respectively acting on the inscribed of interface
Seam, external seam gradually realize the softening of interface, so that two plastic tube hot synthetic types, after cooling, complete welding procedure.
The present invention has the advantages that first, using built-in fixed guide ring 23, external fixed guide ring 21 as track,
The circulatory motion for realizing built-in heating rod 25, external heating rod 24, under the premise of guaranteeing sufficiently to heat interface medial and lateral,
The contact area between heating element and interface is considerably reduced, after avoiding hot melt, large area adherency occurs in heating element
Phenomenon;Second, using the positioning action of built-in fixed guide ring 23, external fixed guide ring 21, guarantee built-in heating rod 25, outer
The accuracy in 24 rotation process of heating rod to target position active position is set, and then effectively prevent the offset of heating rod, influences to weld
Accuracy;Third, the present invention is able to achieve interface medial and lateral synchronous welding, and built-in fixation is cooperated to lead by telescopic device 22
Solves the difficult the technical issues of positioning of welding on the inside of interface to ring 23.Telescopic device 22 of the invention be preferably cylinder, oil cylinder or
One kind of person's electric pushrod.
Embodiment 2
As shown in Figure 1, 2, the present embodiment discloses a kind of plastics pipe welding device, including welding bench 1, thermofusion device, to be welded
Two plastic tubes connect after pairing, are carried out on welding bench 1 by interface of the thermofusion device to two plastic tubes to be welded
Welding.Thermofusion device includes external fixed guide ring 21, telescopic device 22, built-in fixed guide ring 23, external heating rod 24, interior
Heating rod 25 is set, built-in fixed guide ring 23 is connect with the telescopic end of telescopic device 22, and the telescopic end of telescopic device 22 extends fortune
Kinetic energy drives built-in fixed guide ring 23 to be moved to interface from the end of the wherein internal cavity of a plastic tube to be welded
Inner cavity and guarantee that built-in fixed guide ring 23 is concentric with interface.
Built-in heating rod 25 is slidably matched with built-in fixed guide ring 23, and built-in its end of heating rod 25 can be with interface
Inseam contact.
As shown in Figure 3,4, the periphery of interface and concentric with interface is arranged in external fixed guide ring 21.External heating
Stick 24 is slidably matched with external fixed guide ring 21, and external its end of heating rod 24 can be contacted with the external seam of interface.
As shown in Figure 1, welding bench 1 includes the first Hough bearing platform 11, the second Hough bearing platform 12 being oppositely arranged, it is each
The opening of a Hough bearing platform is upward.
In this way, two plastic tubes to be welded can be put into respectively to corresponding Hough bearing platform by the present invention from top to bottom
In, and using the cavity structure of its circular arc of Hough bearing platform, play certain position-limiting action.
Embodiment 3
As shown in Figure 1, 2, the present embodiment discloses a kind of plastics pipe welding device, including welding bench 1, thermofusion device, to be welded
Two plastic tubes connect after pairing, are carried out on welding bench 1 by interface of the thermofusion device to two plastic tubes to be welded
Welding.Thermofusion device includes external fixed guide ring 21, telescopic device 22, built-in fixed guide ring 23, external heating rod 24, interior
Heating rod 25 is set, built-in fixed guide ring 23 is connect with the telescopic end of telescopic device 22, and the telescopic end of telescopic device 22 extends fortune
Kinetic energy drives built-in fixed guide ring 23 to be moved to interface from the end of the wherein internal cavity of a plastic tube to be welded
Inner cavity and guarantee that built-in fixed guide ring 23 is concentric with interface.
Built-in heating rod 25 is slidably matched with built-in fixed guide ring 23, and built-in its end of heating rod 25 can be with interface
Inseam contact.
As shown in Figure 3,4, the periphery of interface and concentric with interface is arranged in external fixed guide ring 21.External heating
Stick 24 is slidably matched with external fixed guide ring 21, and external its end of heating rod 24 can be contacted with the external seam of interface.
As shown in fig. 6, the trapezoidal structure in its end of the one end contacted in all heating rods with interface.
For the two tubes of socket joint connection, the first tube body 31, the second tube body 32, inside, the outside of interface are
Trapezoidal structure is arranged in the end of the one end contacted in heating rod with interface by step structure, the present invention, is convenient for and interface
In corresponding step structure match, improve the stability, accuracy and high efficiency of joint weld.
Embodiment 4
As shown in Figure 1, 2, the present embodiment discloses a kind of plastics pipe welding device, including welding bench 1, thermofusion device, to be welded
Two plastic tubes connect after pairing, are carried out on welding bench 1 by interface of the thermofusion device to two plastic tubes to be welded
Welding.Thermofusion device includes external fixed guide ring 21, telescopic device 22, built-in fixed guide ring 23, external heating rod 24, interior
Heating rod 25 is set, built-in fixed guide ring 23 is connect with the telescopic end of telescopic device 22, and the telescopic end of telescopic device 22 extends fortune
Kinetic energy drives built-in fixed guide ring 23 to be moved to interface from the end of the wherein internal cavity of a plastic tube to be welded
Inner cavity and guarantee that built-in fixed guide ring 23 is concentric with interface.
Built-in heating rod 25 is slidably matched with built-in fixed guide ring 23, and built-in its end of heating rod 25 can be with interface
Inseam contact.
As shown in Figure 3,4, the periphery of interface and concentric with interface is arranged in external fixed guide ring 21.External heating
Stick 24 is slidably matched with external fixed guide ring 21, and external its end of heating rod 24 can be contacted with the external seam of interface.
Built-in fixed guide ring 23 is fixed on its telescopic end of telescopic device 22 by reinforcing rib.
As shown in figure 5, the in-between region of built-in fixed guide ring 23 is invaginated, cause built-in 23 its section shape of fixed guide ring
At U-shaped or v-shaped structure.In built-in fixed guide ring 23, its two sides for invaginating region offers annular through groove 231.Built-in heating
The two sides of 25 its inner end of stick are slidably matched respectively to be placed in corresponding annular through groove 231, built-in its outer end of heating rod 25 can with connect
It is contacted at mouthful.First gear 25, the side of first gear 25 are also rotatably connected to by bearing on its telescopic end of telescopic device 22
It is connected between edge and built-in heating rod 25 by connecting rod 26, first gear 25 drives its rotation by driving mechanism.
As shown in Figure 1, 2, it is preferable that driving mechanism includes second gear 271, driving motor 272, second gear 271 with
First gear 25 engages, and drives its rotation by driving motor 272.
As shown in Figure 1, 2, the present invention is rotated by driving motor 272, and driving second gear 271 rotates, thus driving with
The first gear 25 that second gear 271 engages rotates, and then realizes the rotation of connecting rod 26, so realize built-in heating rod 25 around
Built-in fixed guide ring 23 rotate.The mode that the present invention drives built-in heating rod 25 to rotate has easy to operate, cooperation precision
High advantage.Compared to electrically driven treadmill directly is arranged on built-in fixed guide ring 23, mechanical stability of the present invention is more stronger, and
Since built-in structure is not easy to directly observe at work, can not be monitored online using built-in electrically driven treadmill.
In some embodiments, circular orbit (being not drawn into figure), external heating are offered on external fixed guide ring 21
Stick 24 is slidably matched by electrically driven treadmill with external fixed guide ring 21.The idler wheel of electrically driven treadmill limits in circular orbit.
As shown in Figure 1, in some embodiments, being provided with gripper cylinder 5, not ipsilateral folder in the two sides of welding bench 1
Cylinder 5 is held to move toward one another to clamp two plastic tubes to be welded.
The present invention at work, by starting gripper cylinder 5 so that the not ipsilateral opposite stretching motion of gripper cylinder 5,
Clamp two plastic tubes to be welded, improve the stability of plastic tube positioning, effectively prevent in the welding process, plastic tube by
The offset of position occurs for external force.
Embodiment 5
As shown in Figure 1, 2, the present embodiment discloses a kind of plastics pipe welding device, including welding bench 1, thermofusion device, to be welded
Two plastic tubes connect after pairing, are carried out on welding bench 1 by interface of the thermofusion device to two plastic tubes to be welded
Welding.Thermofusion device includes external fixed guide ring 21, telescopic device 22, built-in fixed guide ring 23, external heating rod 24, interior
Heating rod 25 is set, built-in fixed guide ring 23 is connect with the telescopic end of telescopic device 22, and the telescopic end of telescopic device 22 extends fortune
Kinetic energy drives built-in fixed guide ring 23 to be moved to interface from the end of the wherein internal cavity of a plastic tube to be welded
Inner cavity and guarantee that built-in fixed guide ring 23 is concentric with interface.
Built-in heating rod 25 is slidably matched with built-in fixed guide ring 23, and built-in its end of heating rod 25 can be with interface
Inseam contact.
As shown in Figure 3,4, the periphery of interface and concentric with interface is arranged in external fixed guide ring 21.External heating
Stick 24 is slidably matched with external fixed guide ring 21, and external its end of heating rod 24 can be contacted with the external seam of interface.
As shown in fig. 7, the first conductor 61 being electrically connected with built-in heating rod 25 is in contact with the first carbon brush 62, and it is built-in
The second conductor 63 that heating rod 25 is electrically connected is in contact with the second carbon brush 64.
First conductor 61 of the invention can be cable, after Stranded cable runs through first gear teeth after mutually entwining, with first
Carbon brush 62 is in contact, 62 external power supply of the first carbon brush.Second conductor 63 can be bending structure, and the end face of bending part is close to outer
Set the center line of fixed guide ring 21.
The present invention realizes the heating of each heating rod by the way of external power supply, by the way of carbon brush cooperation, solves
The problem of heating rod rotation causes the conductor to entwine.Compared to using the heating rod for having electrical storage device, the present invention is able to satisfy various
Welding between power consumption load tube body, is not restricted by charge capacity.
In some embodiments, since inside welding does not influence external globality, the slickness of tube body, in order to guarantee to weld
Its outer surface of tube body afterwards is smooth as far as possible, can more assign tube body overall effect, and the present invention on the inside of tube body preferably to forcing
Weld strength.Built-in its quantity of heating rod 25 is multiple, distribution structure in a ring.And then welding point is improved, improve welding effect
Rate.
It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features;And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.