CN201008898Y

CN201008898Y - Heat extruder

Info

Publication number: CN201008898Y
Application number: CNU200720035468XU
Authority: CN
Inventors: 张全根
Original assignee: Feida Automobile Maintenance Tool & Equipment Co Ltd Changshu
Current assignee: Feida Automobile Maintenance Tool & Equipment Co Ltd Changshu
Priority date: 2007-03-17
Filing date: 2007-03-17
Publication date: 2008-01-23
Anticipated expiration: 2017-03-17

Abstract

A heat extruder belongs to extrusion machine technical field, comprising a frame with a work table; a workpiece feeding mechanism and a workpiece molding mechanism arranged on the work table correspondingly; a workpiece clamping mechanism arranged on the work table and between the workpiece feeding mechanism and the workpiece molding mechanism; an electrical control box and a dashboard arranged on the work table and electrically connected with the electrical control box, wherein the electrical control box is electrical control connected with the workpiece feeding mechanism, workpiece molding mechanism and the workpiece clamping mechanism; and a transformer electrically connected with the electrical control box. The utility model has the advantages of: machining compensation lug with about 3T pressure at the end of a slender strip-shaped workpiece and avoiding allocation waste in prior art of large machine small usage; simple and economical integral structure; energy saving; and fast workpiece machining rate.

Description

Heat extruder

Technical field

The utility model relates to a kind of heat extruder, is used for the end formed of strip workpiece gone out to establish bead greater than the expansion of workpiece body diameter, belongs to the extrusion machinery technical field.

Background technology

In prior art, for the strip workpiece for example scissors lifting screw, the extension bar (also claiming extension bar) that is used to operate jack, doughnut wrench or the like end formed go out the equipment that the processing equipment of establishing bead greater than the expansion of workpiece body diameter adopts forging press, upsetting pressure machine and so on usually, for example the upsetting pressure machine of producing with forging press factory, Xuzhou, Jiangsu Province, China is an example, though can satisfy the requirement that said workpiece is processed, have following shortcoming.The one, there is the little phenomenon of using of big device (machine), because the tonnage that adapts to upsetting pressure is in the 3-50T scope, and only need about 3 tons, thereby cause the unreasonable of device resource configuration for the tonnage of the strip workpiece of aforementioned applications; The 2nd, equipment investment is big, and common city's price is about 170,000 yuan/platform, and ordinary enterprises is difficult to bear; The 3rd, power consumption is big, because power is more than 100 kilowatts, so cause energy waste, especially this equipment is once devoting oneself to work, and often whole process is in "on" position, thereby has more increased the consumption of electric energy; The 4th, working (machining) efficiency is low, because it adopts is hydraulic mechanism, moves very slow.

Based on said circumstances, if come processing slim bar workpiece, make the end formed of workpiece go out to establish bead greater than the expansion of workpiece body self diameter with this equipment, that is will certainly cause being multiplied of workpiece cost.Based on said circumstances, the manual processing of the many enterprises of China employing at present specifically is with the nut head or claim bead to be welded to the end of the elongate strip body of rod, constitutes a compensatory expansion in the end of workpiece artificially and establishes bead again.Though this way can be saved cost, work efficiency is low, and the conjugation of the bead and the body of rod is very poor, the durability shortcoming of use.

Therefore very in view of present situation can only be selected one in aforesaid similar devices and manual welding, be necessary that the angle of the industry that stands in develops the machinery that is suitable for processing said workpiece.

Summary of the invention

But task of the present utility model is to provide a kind of can avoiding to cause the equipment unreasonable allocation, economic heat extruder energy savings, that working (machining) efficiency is high because of the big little usefulness of machine.

Task of the present utility model is finished like this, a kind of heat extruder, and it comprises the frame of a tool work top; An one workpiece propulsive mechanism and a Workpiece shaping mechanism are located on the work top with corresponding to each other; One workpiece holding structure is located on the work top, and occupy between described workpiece propulsive mechanism and the Workpiece shaping mechanism; One electric control box and an instrument board, instrument board is located on the work top, be electrically connected with electric control box, and electric control box is connected with described workpiece propulsive mechanism, Workpiece shaping mechanism, the electrical control of workpiece holding structure; One transformer is electrically connected with electric control box.

Workpiece propulsive mechanism described in the utility model comprises pushing tow cylinder, top, nut seat, adjustment screw rod, guide rail, pushing tow cylinder and guide rail cunning are joined, the top is fixed on an end central part of pushing tow cylinder, nut seat is fixed on the described work top, and corresponding to the other end of pushing tow cylinder, adjust screw arrangement on nut seat, be connected with the piston boit of the cylinder piston of pushing tow cylinder, guide rail has a pair of, is fixed on the work top abreast.

Component shaping described in the utility model mechanism comprises the die head cylinder, cylinder block, connect screw rod, die holder, electrode bar, pressing mould sleeve, shaping mould, die head cylinder and cylinder block fix, cylinder block is fixed on the work top, connecting screw rod is contained in the piston boit of die head cylinder, and constitute insulation between the piston boit, connecting screw rod institute is stretched over outside the piston boit and electrode bar connects firmly towards an end of die holder, and with the anodal copper bar electrical coupling of the positive electrode of described transformer, die holder and electrode bar are tightly connected, and and constitute cooling chamber between the electrode bar, end at die sleeve and die holder is fixed, and shaping mould places pressing mould sleeve, and corresponding with electrode bar.

Workpiece holding structure described in the utility model comprises lift cylinder, top die, dip mold, lift cylinder frame, adjusts base, lift cylinder is fixed on the lift cylinder frame, the lift cylinder frame is fixed on to be adjusted on the base, top die is bound up on the piston boit of lift cylinder, and top corresponding to dip mold, dip mold is located to be adjusted on the base, adjusts base and is located on the work top negative pole copper bar electrical coupling of the negative electrode of dip mold and transformer.

Transformer described in the utility model is located at by the described frame.

Transformer described in the utility model is installed in the bottom of described frame.

Electric control box described in the utility model is installed in the bottom of described frame.

Instrument board described in the utility model is provided with the one stroke switch.

Extend on the die holder described in the utility model and be useful on the interface of drawing of introducing the introducing interface of cooling medium and draw cooling medium in cooling chamber, described cooling medium is preferably water.

Be concaved with first, second cavity that is used for matching on the upper and lower pressing mold described in the utility model respectively with workpiece.

One of advantage of heat extruder disclosed in the utility model can be applicable to that the pressure processing about end to the workpiece of elongated strip is with 3T goes out to compensate bead, can avoid causing because of the little usefulness of the big machine of equipment in the prior art phenomenon of configuration property waste again; Two overall structures simple and have an economy; Three power configuration only need 10 kilowatts, reduce ten times than 100 kilowatts in the prior art, especially in working order down do not need the continuation power consumption, and just power consumption when only the both positive and negative polarity copper bar constitutes loop and discharge in to workpiece extrusion process, therefore have the strong point of energy savings; Four, fast to the process velocity of workpiece, split run is can finish the processing of 2000-2500 root workpiece in 8 hours.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structure chart of workpiece propulsive mechanism of the present utility model.

Fig. 3 is the structure chart of Workpiece shaping of the present utility model mechanism, work holding structure.

Fig. 4 is the cutaway view of Workpiece shaping of the present utility model mechanism.

The specific embodiment

In Fig. 1, provided a frame 1 just as the desk shape, the top of this frame 1 constitutes a more smooth work top 11, for use in three great institutions are set, promptly at the Workpiece shaping mechanism 3 of work top 11 left and right ends and workpiece propulsive mechanism 2 and at the more particularly workpiece holding structure 4 between Workpiece shaping mechanism 3 and workpiece propulsive mechanism 2 at middle part.As embodiment, the applicant all has been arranged in the below of work top 11 with transformer 5, electric control box 7, that is to say that this set can embody the globality of complete heat extruder in the bottom cavity volume that has been installed in frame 1.Certainly, install, then be fine equally, but can make complete machine show messy shortcoming if transformer 5, electric control box 7 are warded off a place in addition.Electric control box 7 is electrically connected with transformer 5, and the positive and negative electrode copper bar 511,521 of the positive and

negative electrode

51,52 of transformer 5 is electrically connected with Workpiece shaping mechanism 3, workpiece holding structure 4 respectively.Electric control box 7 is electrically connected with the instrument board 6 that is installed on the work top 11.Because workpiece propulsive mechanism 2, Workpiece shaping mechanism 3, workpiece holding structure 4 all need be by pipeline and compressed air source unit for example air compressor machine, air pump equijoins, and take on by electric control box 7 for the control of air compressor machine, air pump, therefore for example control by solenoid directional control valve, can think that said mechanism and electric control box 7 are electrically connected and are controlled by electric control box 7 by electric control box 7 pairs of air compressor machines, air pumps.

Be provided with a pedal switch 12 that is electrically connected with electric control box 7 at a corner of frame 1, instrument board 6 is fixing with work top 11 by support 63, set travel switch 61 is used for matching with workpiece propulsive mechanism 2 on the instrument board 6, and on the instrument board 6 except the parts that are provided with indicator lamp and so on, also be provided with the Pressure gauge 62 that is used to show operating pressure, thickness degree and material according to corresponding workpiece are set corresponding pressure, are generally about 3kg.

In Fig. 2, the applicant has provided a kind of detailed example structure of workpiece propulsive mechanism 2, for position shown in Figure 1, in the right-hand member of work top 11 fixing pair of guide rails 25 abreast, pushing tow cylinder 21 and guide rail 25 are constituted the sliding relation of joining, and the turnover gas interface 212,213 of pushing tow cylinder 21 connects by pipeline and aforementioned compressed air source unit beyond doubt.The piston boit 2111 of the cylinder piston 211 of pushing tow cylinder 21 connects firmly with the screw rod footstock 243 of an end end (diagram left end) of adjusting screw rod 24, adjust screw rod 24 and be bearing on the nut seat 23 by nut 242, the other end (diagram right-hand member) of adjusting screw rod 24 is a handwheel 241.By suitable or counterclockwise operation to handwheel 241, can cylinder piston 211 be remained on according to the position that needs by piston boit 2111, because the position of cylinder piston 211 has obtained determining, therefore when intake interface 212 air inlets, pushing tow cylinder 21 is moved right, otherwise when giving vent to anger interface 213 air inlets, pushing tow cylinder 21 is moved to left, the top 22 of the nearly central part of pushing tow cylinder 21 left ends is contacted with workpiece 8 and and then workpiece 8 is advanced, the degree of propelling is the degree that pushing tow cylinder 21 contacts with travel switch 61 just.

In Fig. 3, the applicant has clearly provided the example structure of Workpiece shaping mechanism 3 and workpiece holding structure 4, and existing elder generation is described in detail Workpiece shaping mechanism 3 in conjunction with Fig. 4.One group of bolt of die head cylinder 31 usefulness 312 of Workpiece shaping mechanism 3 is fixing with cylinder block 32, and the piston boit 311 of die head cylinder 31 passes cylinder block 32, and one group of screw of cylinder block 32 usefulness 321 is fixing with work top 11.Piston boit 311 is a hollow, connects the end insertion of screw rod 33 from piston boit 311, and leans out outside the piston boit 311 with the right-hand member of shown position state.Show by Fig. 4 is clear, connect screw rod 33 by constituting sealing between first, second sealed insulation packing ring 331,332 and the piston boit 311 and keeping insulation.Be processed with and connect screw thread connecting 33 ends towards electrode bar 35 of screw rod, electrode bar 35 spiral shells are solid to connect on the screw thread at this, realizes with to connect screw rod 33 fixing.Be respectively equipped with first, second sealing gasket 351,352 at the two ends of electrode bar 35, wherein introduce the anodal copper bar 511 of the positive electrode 51 that transformer 5 is arranged between the second sealed insulation pad 332 and first sealing gasket 351, this positive pole copper bar 511 and connection screw rod 33, electrode bar 35 electrical couplings.Die holder 34 is positioned at outside the electrode bar 35, constitutes cooling chamber 341 between this die holder 34 and the electrode bar 35, by be arranged on introducing on the die holder 34, draw interface 342,343 with cooling medium for example water constitute and circulate, make electrode bar 35 coolings.34 ends corresponding to pressing mould sleeve 36 of die holder constitute a recess, in it cushion block 344 can be set as required, and shaping mould 37 is located in the aforesaid recess place that is formed on the die holder 34, and contacts with cushion block 344.Be fitted on the die holder 34 with pressing mould sleeve 36 spiral shells, just can shaping mould 37 is spacing.Extended a pair of turnover gas interface 313 on the die head cylinder 31, connect by pipeline and source of the gas, source of the gas such as air pump are controlled by electric control box 7.Aforesaid introducing, draw interface 342,343 and connect, and whether the water supply of watering is controlled by electric control box 7 equally by water pipe line and water source.

Please continue to see Fig. 3, one group of set bolt 414 of lift cylinder 41 usefulness as workpiece holding structure 4 is fixed on the lift cylinder frame 44, top die 42 is fixed on the piston boit 411 of lift cylinder 41, the a pair of turnover gas interface 412,413 of lift cylinder 41 is linked into compressed air source unit such as air pump etc. by pipeline, whether the work of compressed air source unit is controlled by electric control box 7, promptly opens or close magnetic valve.42 sides of top die towards dip mold 43 be processed with one be used for for processed elongated strip and mostly be first cavity 421 that cylindrical workpiece 8 probes into greatly, same on dip mold 43, also be formed with one and be made into the second right cavity 431, when top die 42 is descending, can act synergistically workpiece 8 is reliably seized on both sides by the arms with dip mold 43 with first cavity 421.Negative pole copper bar 521 electrical couplings of the negative electrode 52 of dip mold 43 and transformer 5.The material of workpiece 8 is generally the 35# steel.Lift cylinder frame 44 is adjusted base 45 and is placed on the work top 11 by one group of adjustment screw 451 by welding or be screwed in adjusting on the base 45, and by schematic structure as can be known, the height of this adjustment base 45 can be according to regulating.

The applicant narrates operation principle of the present utility model in conjunction with Fig. 1 to Fig. 4, by the workpiece of a certain specification of hot extrusion for example scissors jack extension bar be example, that is to say bead is established to squeeze out an expansion compensatoryly in one of them end of scissors jack extension bar blank, so that bead is established in expansion further process, form complete such as outer-hexagonal nut, interior four jiaos or hexagonal socket nut or the like finished form for other technology.

At first, according to certain batch or claim the specification of every batch of workpiece 8 to adjust the effect stroke of pushing tow cylinder 21, workpiece holding structure 4 is adjusted to the 3 corresponding degree with Workpiece shaping mechanism.The power supply of transformer 5 can be 380 volts, also can be 220 volts.As the operative employee workpiece 8 is placed on second cavity 431 of dip mold 43, and an end that needs expansion to establish bead is presented in the Workpiece shaping mechanism 3, moving pedal switch 12 then tramps with one's feet, first source of the gas such as the gas storage pump work that lift cylinder 41 gas circuits with workpiece holding structure 4 is connect by electric control box 7, compressed air enters from turnover gas interface 412, it is descending to make piston boit 411 take top die 42, until arriving at dip mold 43, workpiece 8 is firmly seized on both sides by the arms; Then, Workpiece shaping mechanism 3 is under the effect of electric control box 7, make the gas storage pump that connects with die head cylinder 31 gas circuits of Workpiece shaping mechanism 3 through turnover gas interface 313 (interface on the left side) air feed of tracheae pipeline to die head cylinder 31, make piston boit 311 to the right (is example with the current icon location status) move, connect screw rod 33 with moving, move to right through connecting screw rod 33 promotion electrode bars 35, meanwhile, pushing tow cylinder 21 left lateral of workpiece top-pushing mechanism 2, by 22 ends that head on workpiece 8, top workpiece 8 is sent in shaping mould 37, when the electric contact pressure of setting reaches setting value (being generally 3kg) (pressure is shown by the table on the instrument board 6), just make transformer 5 by electric control box 7,

negative electrode

51,52 conductings, transformer 5 discharge generation are about the low-voltage of 3.5-4 volt, electric current then is big electric current, under this state, make the end heating of the workpiece 8 that is arranged in shaping mould 37, bead is established in the similar expansion of the die cavity of formation and shaping mould 37, whole process only is the several seconds, and in this process, when pushing tow cylinder 21 touches travel switch 61, just stop to advance.After hot extrusion was finished, by aforesaid opposite action process, i.e. piston boit 411 rollbacks of the lift cylinder 41 of workpiece holding structure 4 were specifically by 413 air inlets of turnover gas interface; The pushing tow cylinder 21 of top-pushing mechanism 2 is rollback to the right, specifically by intake interface 212 air inlets; Workpiece shaping mechanism 3 is rollback left, specifically by turnover gas interface 313 (Fig. 4 shows) air inlet on the right, will be formed by the operative employee at last and expand the workpiece 8 of establishing bead and take away from dip mold 43, and next workpiece is placed on it, repeats above-mentioned action.

As seen in entire work process, whole heat extruder also is not in all the time uses electricity condition, therefore has excellent energy-saving effect.Through the applicant contrast of the upsetting pressure machine in the prior art and the utility model structure heat extruder is used, the result shows, the utility model structure every day can processing work 2300 in 8 hours, and the upsetting pressure machine only is 1000, and saves energy is more than ten times.

Claims

1. a heat extruder is characterized in that it comprises the frame (1) of a tool work top (11); An one workpiece propulsive mechanism (2) and a Workpiece shaping mechanism (3) are located on the work top (11) with corresponding to each other; One workpiece holding structure (4) is located on the work top (11), and occupy between described workpiece propulsive mechanism (2) and the Workpiece shaping mechanism (3); One electric control box (7) and an instrument board (6), instrument board (6) is located on the work top (11), be electrically connected with electric control box (7), and electric control box (7) is connected with described workpiece propulsive mechanism (2), Workpiece shaping mechanism (3), workpiece holding structure (4) electrical control; One transformer (5) is electrically connected with electric control box (7).

2. heat extruder according to claim 1, it is characterized in that described workpiece propulsive mechanism (2) comprises pushing tow cylinder (21), top (22), nut seat (23), adjust screw rod (24), guide rail (25), pushing tow cylinder (21) is joined with guide rail (25) is sliding, top (22) is fixed on an end central part of pushing tow cylinder (21), nut seat (23) is fixed on the described work top (11), and the other end corresponding to pushing tow cylinder (21), adjusting screw rod (24) is configured on the nut seat (23), be connected with the piston boit (2111) of the cylinder piston (211) of pushing tow cylinder (21), guide rail (25) has a pair of, is fixed on abreast on the work top (11).

3. heat extruder according to claim 1, it is characterized in that described component shaping mechanism (3) comprises die head cylinder (31), cylinder block (32), connect screw rod (33), die holder (34), electrode bar (35), pressing mould sleeve (36), shaping mould (37), die head cylinder (31) fixes with cylinder block (32), cylinder block (32) is fixed on the work top (11), connecting screw rod (33) is contained in the piston boit (311) of die head cylinder (31), and constitute insulation between the piston boit (311), connecting screw rod (33) institute is stretched over outside the piston boit (311) and electrode bar (35) connects firmly towards an end of die holder (34), and with anodal copper bar (511) electrical coupling of the positive electrode (51) of described transformer (5), die holder (34) is tightly connected with electrode bar (35), and and constitute cooling chamber (341) between the electrode bar (35), fix in the die sleeve (36) and the end of die holder (34), shaping mould (37) places pressing mould sleeve (36), and corresponding with electrode bar (35).

4. heat extruder according to claim 1, it is characterized in that described workpiece holding structure (4) comprises lift cylinder (41), top die (42), dip mold (43), lift cylinder frame (44), adjust base (45), lift cylinder (41) is fixed on the lift cylinder frame (44), lift cylinder frame (44) is fixed on to be adjusted on the base (45), top die (42) is bound up on the piston boit (411) of lift cylinder (41), and top corresponding to dip mold (43), dip mold (43) is located to be adjusted on the base (45), adjust base (45) and be located on the work top (11), negative pole copper bar (521) electrical coupling of the negative electrode (52) of dip mold (43) and transformer (5).

5. heat extruder according to claim 1 is characterized in that described transformer (5) is located at described frame (1) side.

6. heat extruder according to claim 1 is characterized in that described transformer (5) is installed in the bottom of described frame (1).

7. heat extruder according to claim 1 is characterized in that described electric control box (7) is installed in the bottom of described frame (1).

8. heat extruder according to claim 1 is characterized in that described instrument board (6) is provided with one stroke switch (61).

9. heat extruder according to claim 3, it is characterized in that extending on the described die holder (34) be useful in cooling chamber (341) the introducing interface (342) of introducing cooling medium and draw cooling medium draw interface (343), described cooling medium is preferably water.

10. heat extruder according to claim 4 is characterized in that being concaved with respectively on the described upper and lower pressing mold (42,43) first, second cavity (421,431) that is used for matching with workpiece.