Hot melting welding equipment

Abstract

The utility model belongs to the technical field of pipe welding equipment, and particularly relates to hot melting welding equipment which comprises a working table, a heating assembly and a pair of receiving table assemblies, and the heating assembly is arranged on the working table and comprises a first driver and a pair of heating plates. The first drive can drive the pair of heating plates to move in the radial direction of the pipe, the receiving table assembly comprises a second drive and a pair of jigs, and the second drive can drive the pair of jigs to move in the axial direction of the pipe. A pair of heating plates capable of moving in the radial direction relative to the pipe act on the end face of the pipe, after the hot melting step is completed, the pair of heating plates are pulled out in the radial direction of the pipe, the effect of shortening the pulling-out stroke of the heating plates is achieved, and then the contact duration of the heating plates and the end face of the pipe in the pulling-out process is shortened; and the situation that the end face of the pipe deforms due to inclination of the heating plate is reduced, and the welding machining quality of the pipe is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipe welding equipment technical field, especially, relate to a hot melt welding equipment. BACKGROUND

[0002] PE pipe is a kind of plastic pipe, with corrosion resistance, impact resistance, long service life and other characteristics. In order to meet the demand of on-site construction, generally, PE pipe is extended before construction, in the prior art, heating plate is used to act on the end face of two pipe materials to be welded, after hot melting, the staff needs to pull out the aforementioned heating plate between two pipes, this welding method has the following shortcomings: when hot melting is completed, the whole heating plate needs to be pulled out along the radial direction of pipe material, and the end face of pipe material is easily deformed due to the inclination of the heating surface of heating plate relative to the end face of pipe material in the process, so that the butt joint of two pipe materials is affected, and there is a safety hazard of scalding the staff. UTILITY MODEL CONTENTS

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the first purpose of the utility model is to provide a hot melt welding equipment, which comprises a workbench, a heating assembly and a pair of receiving bench assemblies, the heating assembly is arranged on the workbench, and a pair of the receiving bench assemblies are oppositely arranged on the two sides of the heating assembly, the heating assembly comprises a first drive and a pair of heating plates, the first drive can drive the pair of heating plates to move along the radial direction of the pipe material, the receiving bench assembly comprises a second drive and a jig, the second drive can drive the jig to move along the axial direction of the pipe material, and the jig is provided with a hollow slot matched with the cross section of the pipe material;When the pair of heating plates move inward along the radial direction of the pipe material, a heating plane facing the end face of the pipe material can be spliced;When the pair of heating plates move outward along the radial direction of the pipe material, a gap for the end of the pipe material to pass through can be formed.

[0004] Optionally, the heating assembly further comprises an assembly frame arranged on the workbench, and the first drive is a pneumatic finger arranged on the assembly frame, wherein the pneumatic finger is provided with a pair of air claws parallel to each other, and the heating plate is arranged on the air claw.

[0005] Optionally, it further comprises an L-shaped mounting plate corresponding to the air claw, the L-shaped mounting plate comprises a vertical plate and a horizontal rod connected, the vertical plate is fixedly connected with the air claw, and the heating plate is connected with the horizontal rod at one end away from the axis of the pipe material.

[0006] Optionally, it further comprises a plurality of electric heating pipes, and the heating plate is provided with a plurality of parallel strip-shaped grooves at one end close to the axis of the pipe material, and the electric heating pipes are arranged in the strip-shaped grooves.

[0007] Optionally, the heating plate is made of brass.

[0008] Optionally, the workbench assembly further comprises an assembling seat arranged on the workbench, the second drive is a servo motor arranged on the assembling seat, an output end of the servo motor is drivingly connected with a lead screw, the lead screw is threadedly connected with a lead screw nut, and a bottom of the jig is provided with a sliding table fixedly connected with the lead screw nut.

[0009] Optionally, the workbench assembly further comprises a sliding rail arranged on the assembling seat, the sliding rail is arranged along an axial direction of the pipe, and the sliding table is slidably connected with the assembling seat through the sliding rail.

[0010] Optionally, the workbench assembly further comprises three groups of micro photoelectric switches, the three groups of micro switches are sequentially arranged on the assembling seat from outside to inside, and a sensing sheet is arranged on the side of the sliding table.

[0011] Optionally, the jig comprises a base and a top cover arranged on the top of the sliding table, the hollow groove comprises a first semicircular groove body arranged on the top of the base and a second semicircular groove body arranged on the bottom of the top cover, one side of the base is provided with a hinge shaft, the top cover is pivotally arranged on the base through the hinge shaft, and the base is provided with a locking structure at an end away from the hinge shaft, and the locking structure can limit the top cover from being upwardly flipped relative to the base.

[0012] The second object of the utility model is to provide a pe pipe which is processed by a hot melt welding device.

[0013] The working principle of the utility model is as follows: firstly, two pipes are arranged on the jig, then the first drive controls a pair of heating plates to move inward along the radial direction of the pipe until a heating plane is formed, then the second drive controls the jig to drive the end face of the pipe to move to the end close to the heating plane until the end face is in contact with the heating plane, the heating plane acts on the end face of the pipe to realize hot melting, then the first drive controls the pair of heating plates to move outward along the radial direction of the pipe until a gap is formed for the pipe to pass through, then the second drive controls the jig to drive the pipe to move inward along the axial direction of the pipe until the hot-melted end faces of the two pipes are in contact, and finally the butt joint of the two pipes is realized through cooling.

[0014] Compared with the prior art, the utility model has the beneficial effects that: the end face of the pipe is acted on by a pair of heating plates which can move radially relative to the pipe, after the hot melting step is completed, the pair of heating plates is extracted outward along the radial direction of the pipe, the extraction stroke of the heating plates is reduced, the contact time of the heating plates with the end face of the pipe during the extraction process is shortened, the deformation of the end face of the pipe caused by the inclination of the heating plates is reduced, and the quality of pipe welding processing is improved; the first drive is used to control the heating plates to realize closing or opening, and the safety hidden danger in the operation process is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Figure 1 The structural schematic diagram of the hot melting welding equipment provided by the present application is shown.

[0017] Figure 2 The structural schematic diagram of the hot melting operation provided by the present application is shown.

[0018] Figure 3 The structural schematic diagram of the welding operation provided by the present application is shown.

[0019] Figure 4 The structural schematic diagram of the receiving table assembly provided by the present application is shown.

[0020] Figure 5 The structural schematic diagram of the heating assembly provided by the present application is shown.

[0021] In the drawings, various reference signs represent:

[0022] 10 - workbench 20 - heating assembly 30 - receiving table assembly

[0023] 11 - assembly frame 12 - assembly seat 21 - first drive

[0024] 22 - heating plate 23 - strip-shaped groove body 231 - electric heating pipe

[0025] 24 - L-shaped mounting plate 31 - second drive 32 - jig

[0026] 321 - base 3211 - first semicircular groove body 322 - top cover

[0027] 3221 - second semicircular groove body 323 - locking structure 33 - sliding table

[0028] 331 - induction sheet 34 - micro photoelectric switch 4 - pe pipe. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0030] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0031] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0032] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0033] In one embodiment of the present application, as Figures 1 to 5As shown, a hot melt welding device is provided, which comprises a workbench 10, a heating assembly 20 arranged on the workbench 10, and a pair of receiving bench assemblies 30 arranged on both sides of the heating assembly 20 in opposition, the heating assembly 20 comprises a first drive 21 and a pair of heating plates 22, the first drive 21 can drive the pair of heating plates 22 to move along the radial direction of the pipe, the receiving bench assembly 30 comprises a second drive 31 and a pair of jigs 32, the second drive 31 can drive the pair of jigs 32 to move along the axial direction of the pipe, and the jig 32 is provided with a hollow slot matched with the cross section of the pipe; when the pair of heating plates 22 move inward along the radial direction of the pipe, a heating plane facing the end surface of the pipe can be formed by splicing; when the pair of heating plates 22 move outward along the radial direction of the pipe, a gap for the end of the pipe to pass through can be formed. The specific working principle is: firstly, two pipes are arranged on the jigs 32 respectively, and the end of the pipe to be hot-melted needs to be exposed outside the hollow slot of the jig 32, and the exposed length is at least 10 cm; then the first drive 21 controls the pair of heating plates 22 to move inward along the radial direction of the pipe until the heating plane is formed by splicing; then the second drive 31 controls the jig 32 to move the end surface of the pipe to the end close to the heating plane until the heating plane is contacted; the heating plane acts on the end surface of the pipe to realize hot melting; then the first drive 21 controls the pair of heating plates 22 to move outward along the radial direction of the pipe until the gap for the pipe to pass through is formed; then the second drive 31 controls the jig 32 to move the pipe along the axial direction inward until the hot-melted end surfaces of the two pipes are contacted; finally, the butt joint of the two pipes is realized through cooling, and the pipes are taken out from the jig 32 after cooling is completed, which is beneficial to improve the welding quality.

[0034] In an embodiment of the present application, as shown in Figure 5 The heating assembly 20 further comprises an assembly frame 11 arranged on the workbench 10, and the first drive 21 is a pneumatic finger arranged on the assembly frame 11, the pneumatic finger is provided with a pair of parallel air claws, and the heating plate 22 is arranged on the air claw. Specifically, the pneumatic finger is a parallel claw pneumatic finger, and the model thereof is MHF2-20D2 produced by SMC, which has a simple structure and is convenient to install.

[0035] In an embodiment of the present application, as shown in Figure 5 Further comprising an L-shaped mounting plate 24 corresponding to the air claw, the L-shaped mounting plate 24 comprises a vertical plate and a horizontal rod connected, the vertical plate is fixedly connected with the air claw, and the heating plate 22 is connected with the horizontal rod at an end away from the axis of the pipe. Specifically, the vertical plate is fixedly connected with the air claw through a screw, and the heating plate 22 is fixedly connected with the horizontal rod through a screw, and further, the L-shaped mounting plate 24 is made of heat insulation material.

[0036] In an embodiment of the present application, as shown in Figure 5 It further comprises several electric heating pipes 231, the heating plate 22 is provided with several parallel arranged strip-shaped grooves 23 at one end near the axis of the pipe, and the electric heating pipe 231 is arranged in the strip-shaped groove 23. Specifically, four parallel strip-shaped grooves 23 are arranged on the heating plate 22, which is beneficial to increase the heating area.

[0037] In an embodiment of the present application, the heating plate 22 is made of brass. Specifically, the electric heating pipe 231 heats the heating plate 22 after being electrified, and the heating plate 22 is applied to the end of the pipe through heat conduction to achieve the purpose of hot melting.

[0038] In an embodiment of the present application, as shown in Figure 4 The receiving table assembly 30 further comprises an assembly seat 12 arranged on the workbench 10, the second drive 31 is a servo motor arranged on the assembly seat 12, the output end of the servo motor is drivingly connected with a lead screw, the lead screw is threadedly connected with a lead screw nut, and the bottom of the jig 32 is provided with a sliding table 33 fixedly connected with the lead screw nut.

[0039] In an embodiment of the present application, as shown in Figure 4 It further comprises a slide rail arranged on the assembly seat 12, the slide rail is arranged along the axial direction of the pipe, and the sliding table 33 is slidably connected with the assembly seat 12 through the slide rail. The structure is simple and convenient to install.

[0040] In an embodiment of the present application, it further comprises three groups of micro photoelectric switches 34, the three groups of micro switches are sequentially arranged on the assembly seat 12 from outside to inside, and the side of the sliding table 33 is outwardly provided with a sensing sheet 331. Specifically, it further comprises an information processor and a driver, the three groups of micro photoelectric switches 34 are electrically connected with the information processor, the driver is electrically connected with the information processor, the servo motor is electrically connected with an external power supply through the driver, the stroke of the jig 32 sliding is controlled by the three groups of micro photoelectric switches 34, and the positions monitored from outside to inside are: a pipe to be hot melted (as shown in Figure 1 ), an end surface of the pipe to be hot melted (as shown in Figure 2 ), and two pipes to be pressed and connected (as shown in Figure 3 ).

[0041] In an embodiment of the present application, as shown in Figure 4As shown, the jig 32 comprises a base 321 and a top cover 322 arranged on the top of the sliding table 33, the hollow groove comprises a first semicircular groove body 3211 arranged on the top of the base 321 and a second semicircular groove body 3221 arranged on the bottom of the top cover 322, one side of the base 321 is provided with a hinge shaft, the top cover 322 is arranged on the base 321 through the hinge shaft and can be turned, one end of the base 321 away from the hinge shaft is provided with a locking structure 323, and the locking structure 323 can limit the top cover 322 from being turned upward relative to the base 321. Specifically, the inner walls of the first semicircular groove body 3211 and the second semicircular groove body 3221 are respectively provided with a plurality of arc-shaped grooves, and the arc-shaped grooves are provided with anti-skid rubber strips, the inner sides of the anti-skid rubber strips are fixed in the arc-shaped grooves through glue, the friction between the pipes and the inner walls of the hollow groove is increased by using the anti-skid rubber strips, axial deviation of the two pipes relative to the hollow groove during butt joint of the two pipes is reduced, and the welding quality is improved; the locking structure 323 comprises a hexagonal flat head screw and a gasket, the top cover 322 is provided with a tab outwardly away from the hinge shaft, the tab is provided with a screw through hole, the gasket is coaxial with the screw through hole and is stacked on the top plate of the tab, the base 321 is provided with a screw tooth hole corresponding to the screw through hole, during feeding, the pipes are first placed in the first semicircular groove body 3211, then the top cover 322 is turned downward, and finally the pipes are fixed by tightening the hexagonal flat head screw.

[0042] The embodiment also provides a PE pipe 4 processed by the hot melting welding device. When the hot melting is completed, the pneumatic fingers are used to drive the pair of heating plates 22 to move outward along the radial direction of the pipe at the same time, so that the heating plates 22 are separated from the pipe, the deformation of the end surface of the pipe caused by the inclination of the heating plates 22 is reduced, and the quality of the pipe welding process is improved.

[0043] The above merely shows a preferred embodiment of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hot melt welding apparatus characterized by: The utility model provides a heating device for pipe end face, including workbench, heating assembly and a pair of table assembly, heating assembly sets up in workbench, a pair of table assembly opposite sets up in both sides of heating assembly, heating assembly includes first drive and a pair of heating plate, first drive can drive a pair of heating plate moves along the radial of pipe material, table assembly includes second drive and a pair of jig, second drive can drive a pair of jig moves along the axial of pipe material, and the jig is seted with hollow slot with the cross section of pipe material matches, when a pair of heating plate moves along the radial of pipe material and inwards, can splice and form the heating plane towards the end face of pipe material, when a pair of heating plate moves along the radial of pipe material and outwards, can form the clearance for the end of pipe material to pass through.

2. A hot melt welding apparatus as claimed in claim 1, wherein: The heating assembly further includes an assembly frame arranged on the workbench, the first drive is a pneumatic finger arranged on the assembly frame, the pneumatic finger is provided with a pair of parallel air claws, and the heating plate is arranged on the air claw.

3. A hot melt welding apparatus as claimed in claim 2, wherein: Further comprising an L-shaped mounting plate corresponding to the air claw, the L-shaped mounting plate comprises a vertical plate and a horizontal rod connected, the vertical plate is fixedly connected with the air claw, and the heating plate is connected with the horizontal rod at one end away from the axis of the pipe.

4. A hot melt welding apparatus as claimed in claim 3, wherein: Further comprising a plurality of electric heating pipes, the heating plate is provided with a plurality of parallel strip-shaped grooves at one end close to the axis of the pipe, and the electric heating pipes are arranged in the strip-shaped grooves.

5. A hot melt welding apparatus as claimed in claim 4, wherein: The heating plate is made of brass.

6. A hot melt welding apparatus as claimed in claim 1, wherein: The table assembly further includes an assembly seat arranged on the workbench, the second drive is a servo motor arranged on the assembly seat, the output end of the servo motor is drivingly connected with a lead screw, the lead screw is threadedly connected with a lead screw nut, and the bottom of the jig is provided with a sliding table fixedly connected with the lead screw nut.

7. A hot melt welding apparatus as claimed in claim 6, wherein: Further comprising a slide rail arranged on the assembly seat, the slide rail is arranged along the axial direction of the pipe, and the sliding table is slidingly connected with the assembly seat through the slide rail.

8. A hot melt welding apparatus as claimed in claim 7, wherein: Further comprising three groups of micro photoelectric switches, the three groups of micro photoelectric switches are sequentially arranged on the assembly seat from outside to inside, and the side of the sliding table is outwardly provided with a sensing sheet.

9. A hot melt welding apparatus as claimed in claim 6, wherein: The jig comprises a base arranged on the top of the sliding table and a top cover, the hollow slot comprises a first semicircular groove arranged on the top of the base and a second semicircular groove arranged on the bottom of the top cover, one side of the base is provided with a hinge shaft, the top cover is pivotally arranged on the base through the hinge shaft, and the base is provided with a locking structure at one end away from the hinge shaft, and the locking structure can limit the top cover to be upwardly flipped relative to the base.

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