CN2375441Y

CN2375441Y - Chemical welding device for high-molecular material

Info

Publication number: CN2375441Y
Application number: CN 99226921
Authority: CN
Inventors: 宋建祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-11
Filing date: 1999-06-11
Publication date: 2000-04-26
Anticipated expiration: 2009-06-11

Abstract

The utility model relates to a chemical welding device for high-molecular material, which mainly comprises a base, two upright posts, a cross beam, a moveable upper arm, a reciprocating power source, a rotary lower arm, and an upper and a lower two sets of heating sets. The utility model is characterized in that the upper and the lower heating sets which are corresponding are arranged on the movable upper arm and the rotary lower arm; each heating set mainly comprises a heating block and two cooling clamping block of both sides; moreover, liquid medium flowing channels are arranged in the heating block and the cooling clamping block. The utility model can weld polyethylene class thermal shrinking material with high quality in a chemical welding type, particularly the polyethylene class thermal shrinking material is welded into a heat shrinkage tube with a large caliber.

Description

The chemical welder of macromolecular material

The utility model relates to welder, refers to a kind of chemical welder of macromolecular material especially.

For preventing the piling bar in the engineerings such as ocean, basis, city, chemical petroleum, the burn into electric leakage of steel pipe, the appearance that is preferably in piling bar, steel pipe coats one deck anticorrosive coat.Polyethylene kind material in the macromolecular material, with its good processing characteristics, the chemical inertness of acidproof, alkaline-resisting, salt tolerant, good anti-bioerosion performance and high electrical insulation capability, and become generally acknowledged high-quality anti-corrosion material.As everyone knows, the polyethylene kind heat-shrinkage material is made up of crosslinked polyethylene, and combination property is better, has been widely used in electric power, communication, pipeline corrosion protection field.In the prior art, be used to weld macromolecular material, particularly the welder of heavy caliber (generally more than 600 millimeters) macromolecule tubing is also rarely found, from disclosed data as can be known, it mainly includes that a base, two columns, a crossbeam, move upper arm, underarm and upper and lower two groups of heating groups are rotated in a reciprocating power source; Two columns and base and crossbeam constitute the one door type support body, mobile upper arm is nested with below two column entablatures with the sleeve at its two ends, and its end face is connected with reciprocating power source on being fixed on crossbeam, the heating group is housed on the bottom surface, rotate underarm and be articulated on the column, and on its end face, be equipped with and the corresponding heating group down of last heating group with the one end.During this device welding operation, mobile upper arm is promoted to upper limit, the free end that rotates underarm is shelved on the bearing on another column, one end of polymer strip (sheet) material is placed on the welded plate that rotates lower back, the other end is walked around the rotation underarm, make band (sheet) material be rolled into tubulose, and the two ends of band (sheet) material are overlapped, thereafter, mobile upper arm is descended and push down bond end, heating pressurization thereupon is welded into one bond end, make then on the mobile upper arm and move, will rotate underarm at last and come out and take off the pipe that becomes tubulose from the transfer of gate-type support body.The welder of existing this heavy caliber macromolecule tubing is with Electric heating macromolecule tubing to be welded, and comes down to a kind of fusion weld mode.But, the crosslinked polyethylene in the macromolecular material, its characteristic is insoluble also molten, therefore is difficult to adopt plastically welding method welding commonly used, also is difficult to use binding agent bonding firmly, can only manage to carry out " welding " with chemical mode.Above-mentioned existing apparatus is the electrical heating welding because of it, temperature deviation is big, can not satisfy chemical requirement of welding, and the welding pressurized state is also very undesirable, pressure distribution is inhomogeneous, have a strong impact on the quality of the strip weld seam in the chemistry welding, have again to be, can not on device, cool off weld seam immediately, if the pipe that will just weld takes off at heat seam state by force, easily cause the thermal contraction and the mechanical damage of weld seam.

The purpose of this utility model provides the chemical welder of a kind of macromolecular material, particularly a kind of macromolecule tubing, makes it accurately to provide the process conditions of chemistry welding, to realize the firm welding of polyethylene kind heat-shrink tube (sheet, band or plate) material.

Realize the utility model of above-mentioned purpose, mainly include a base, two columns, one crossbeam, one moves upper arm, one reciprocating power source, one rotates underarm reaches, following two groups of heating groups, two columns and base and crossbeam constitute the one door type support body, mobile upper arm is nested with below two column entablatures with its two ends, and its end face is connected with the elevating lever in reciprocating power source on being fixed on crossbeam, the heating group is housed on the bottom surface, rotating underarm is articulated on the column with the one end, and on its end face, be equipped with and the corresponding heating group down of last heating group, main feature of the present utility model is, change the structure of heating group, make it to have the condition that to implement chemistry " welding ".In concrete structure scheme of the present utility model, be connected on the mobile upper arm bottom surface and be connected the upper and lower heating group of rotating on the underarm end face and respectively consist predominantly of a heat block and two cooling fixture blocks, two cooling fixture blocks are clamped in the both sides of heat block, and respectively be provided with the runner of media flow for liquid in heat block and the cooling fixture block, this runner is connected with hot and cold media slot by pipeline.See that thus the heat block to using as weld heating in the utility model, its mode of heating are not electrical heating, but a kind of usefulness can accurately control the liquid medium of temperature and heat, therefore the welding temperature for the chemistry welding can definitely be guaranteed; And the heat block in the utility model is designed to feed hot liquid medium or cold liquid medium by turns, makes it to realize feeding hot liquid medium and carries out hot weld, feeds cold liquid medium butt welded seam and carries out cooling and shaping.The cooling fixture block that is clamped in the heat block both sides in the utility model is for forcing the non-weld zone of cooling.

For making the utility model that more uniform welding pressure be arranged and guaranteeing welding quality, the utility model has two to the elevating lever design of being controlled mobile upper arm lifting by drive power source, being the utility model is connected with mobile upper arm with two elevating levers of synchronization lifting, and is provided with a pressure-equalizing device between each elevating lever and mobile upper arm; This pressure-equalizing device consists predominantly of an equal pressing plate, a spring, reaches a minute hand system, and the upper end of spring can contact with elevating lever, and the lower end is connected on the equal pressing plate, and the pointer of minute hand system links to each other with spring.Equal pressing plate in the utility model is preferably in its bottom surface and is provided with pressure point for four jiaos.

Therefore major advantage of the present utility model is: 1, and the liquid medium that employing can accurately be controlled removes to heat heat block, can accurately, accurately control welding temperature, adapts to the basic demand that utilizes chemical reaction to weld.2, utilize same heat block butt welded seam to carry out at the machine cooling and shaping, can guarantee chemical welding quality.3, by the heating group that heat block and cooling fixture block are formed, can accurately separate welding and non-welding region, then can make it to have higher pipe integral welding quality.4, the utility model will make welding pressure and weld seam more even after adopting pressure-equalizing device.The utility model makes weldering system bore, and size, length below 1000 millimeters, the heavy caliber of wall thickness 0.4-4.0 millimeter, super large caliber heat-shrinkable tube become a reality arbitrarily more than 100 millimeters, also can with wide below 1000 millimeters, thickness 0.4-4.0 millimeter, length arbitrarily the head and the tail of two volume heat shrinkage belts link together, to eliminate heat shrinkage belt at the fracture that coats in using.

Description of drawings:

Fig. 1 is a vertical structure schematic diagram of the present utility model.

Fig. 2 be of the present utility model on.The cross sectional representation of following heating group.

Fig. 3 is the schematic cross-section of the pressure-equalizing device in the utility model.

Fig. 4 is the forward schematic diagram of Fig. 3.

Embodiment of the present utility model as shown in drawings.Below in conjunction with accompanying drawing the utility model is described specifically.

At first see also Fig. 1.See by Fig. 1, the utility model mainly includes a base 1, two

columns

3,14, one crossbeam 8, one moves upper arm 7, one reciprocating power source 11, one rotates underarm 4 reaches, following two groups of

heating groups

6,5, two

columns

2,14 constitute the one door type support bodys with base 1 and crossbeam 8, mobile upper arm 7 is nested with at two columns 2 with its two ends, the below of 14 entablatures 8, and its end face is connected with reciprocating power source 11 on being fixed on crossbeam 8, heating group 6 is housed on the bottom surface, rotating underarm 4 is articulated on the column 14 with the one end, and on its end face, be equipped with last heating and organize 6 corresponding down heating groups 5, the column 2 intrinsic bearing 3 of locking, rotate underarm 4 when column 14 turns in the door frame, the head of this rotation underarm 4 reliably is sitting on the bearing 3.Please consult Fig. 2 simultaneously, characteristics of the present utility model are: be connected on mobile upper arm 7 bottom surfaces and be connected that the upper and

lower heating group

6,5 of rotating on underarm 4 end faces respectively consists predominantly of a heat block 15 (23) and two cooling fixture blocks 17 (21), two cool off the both sides that fixture blocks 17 (21) are clamped in heat block 15 (23); And heat block 15 (23) and cooling respectively are provided with the runner 16 (22), 18 (20) of media flow for liquid in the fixture block 17 (21), and this runner 16 (22), 18 (20) is connected with hot and cold media slot by pipeline.Number in the figure 19 is the macromolecular material weldment.The utility model can be welded into tubing to macromolecule plate (sheet, band) material, also can fuse the weldering of two (or many) parts plate (sheet, band) material certainly.

Please consult Fig. 3, Fig. 4 simultaneously, in the present embodiment, reciprocating power source 11 is connected with mobile upper arm 7 with two

elevating levers

10,12 of synchronization lifting, and is provided with a pressure-equalizing device 9 (13) at each elevating lever 10 (12) and 7 on mobile upper arm; This pressure-equalizing device 9 (13) consists predominantly of an equal pressing plate 27, a spring 26, an and minute hand system that comprises pointer 24, case 25, pointer groove and graduation mark 29, the upper end of spring 26 can contact with elevating lever 10 (12), the lower end is connected on the equal pressing plate 27, and the pointer 24 of minute hand system links to each other with spring 26.All the bottom surface of pressing plate 27 is provided with pressure point 28 for four jiaos.

Claims

1, a kind of chemical welder of macromolecular material, mainly include that a base, two columns, a crossbeam, move upper arm, underarm and upper and lower two groups of heating groups are rotated in a reciprocating power source,, two columns and base and crossbeam constitute the one door type support body, mobile upper arm is nested with below two column entablatures with its two ends, and its end face is connected with reciprocating power source on being fixed on crossbeam, the heating group is housed on the bottom surface, rotating underarm is articulated on the column with the one end, and on its end face, be equipped with and the corresponding heating group down of last heating group, it is characterized in that:

A is connected on the mobile upper arm bottom surface and is connected the upper and lower heating group of rotating on the underarm end face and respectively consists predominantly of a heat block and two cooling fixture blocks, and two cooling fixture blocks are clamped in the both sides of heat block;

B respectively is provided with the runner of media flow for liquid in heat block and the cooling fixture block, and this runner is connected with hot and cold media slot by pipeline.

2, the chemical welder according to the described macromolecular material of claim 1 is characterized in that: the reciprocating power source is connected with mobile upper arm with two elevating levers of synchronization lifting, and is provided with a pressure-equalizing device between each elevating lever and mobile upper arm; This pressure-equalizing device consists predominantly of an equal pressing plate, a spring, reaches a minute hand system, and the upper end of spring can contact with elevating lever, and the lower end is connected on the equal pressing plate, and the pointer of minute hand system links to each other with spring.

3, according to the chemical welder of the described macromolecular material of claim 2.It is characterized in that: all the bottom surface of pressing plate is provided with pressure point for four jiaos.