CN217858076U

CN217858076U - Extrusion end cap structure

Info

Publication number: CN217858076U
Application number: CN202222313611.4U
Authority: CN
Inventors: 梁润明
Original assignee: Foshan Nanhai Mingsheng Machine Manufacture Co ltd
Current assignee: Foshan Nanhai Mingsheng Machine Manufacture Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-11-22
Anticipated expiration: 2032-08-31

Abstract

The utility model provides an extrusion end cap structure, include: the movable beam, the bearing seat and the extrusion plug; the supporting seat is fixedly connected to the front side of the movable beam, and the extrusion plug is detachably arranged on the supporting seat; the first limiting part and the second limiting part can limit the extrusion plug to move along the front-back direction; the bearing seat comprises a left limiting part and a right limiting part, the extrusion plug is arranged between the left limiting part and the right limiting part, an opening is formed in the upper side of the bearing seat, the opening is arranged between the left limiting part and the right limiting part, the extrusion plug can enter and exit the bearing seat through the opening, and the left limiting part and the right limiting part can limit the extrusion plug to move along the left and right directions. The utility model discloses the installation of well extrusion end cap is convenient, and the manpower of consumption is less, and the installation is weak point consuming time, is favorable to improving reverse extruder's work efficiency.

Description

Extrusion end cap structure

Technical Field

The utility model relates to an extrusion equipment technical field specifically is an extrusion end cap structure.

Background

In a reverse extruder, there is typically a moving barrel and plug arrangement and an extrusion die shaft with a die disposed thereon. During extrusion, the extrusion plug structure and the ingot containing barrel move towards the extrusion die shaft and the die, the extrusion plug extrudes the metal rod in the ingot containing barrel, and the metal is processed and molded through the die on the extrusion die shaft. The extrusion plug structure comprises an extrusion plug and a movable beam, the extrusion plug is arranged on the movable beam, and on the same reverse extruder, the extrusion plug is worn due to long-time use, or different types of extrusion plugs are needed when different workpieces are produced, and the extrusion plugs are required to be replaced.

The weight of extrusion end cap is generally great, and operating personnel need earlier with manpower or use outside instrument to hold in the palm when the installation of extrusion end cap and extrude the end cap and be close to the mounted position, and the reuse screw will extrude the end cap fixed, will hold in the palm the outside instrument who extrudes the end cap at last and remove, and whole installation consumes physical power and very inconvenient, and the time that leads to the installation extrusion end cap is longer, and then influences the work efficiency of reverse extruder.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an extrusion end cap structure aims at solving the inconvenient technical problem of extrusion end cap installation among the prior art.

In order to achieve the above object, the utility model provides an extrusion end cap structure, include: the movable beam, the bearing seat and the extrusion plug; the supporting seat is fixedly connected to the front side of the movable beam, and the extrusion plug is detachably arranged on the supporting seat; the first limiting part and the second limiting part can limit the extrusion plug to move along the front-back direction; the bearing seat comprises a left limiting part and a right limiting part, the extrusion plug is arranged between the left limiting part and the right limiting part, an opening is formed in the upper side of the bearing seat, the opening is arranged between the left limiting part and the right limiting part, the extrusion plug can enter and exit the bearing seat through the opening, and the left limiting part and the right limiting part can limit the extrusion plug to move along the left and right directions.

The utility model discloses in, when installing the movable beam to the extrusion end cap on, only need to place the extrusion end cap in the bearing seat through the opening, under the cooperation of the first spacing portion of bearing seat and the spacing portion of second of extrusion end cap, the extrusion end cap receives the restriction in the ascending removal in front and back side, under the cooperation of the spacing portion of third and the spacing portion of fourth of bearing seat, the extrusion end cap of placing in the bearing seat receives the restriction in the ascending removal of left and right sides side. The installation process of the extrusion plug is convenient, the consumed manpower is less, the installation is short in time consumption, and the work efficiency of the reverse extruder is improved.

Preferably, the bearing seat is U type seat, and U type seat and extrusion end cap shape match set up, and left spacing portion is the left side part of U type seat, and right spacing portion is the right side part of U type seat. The U-shaped seat is matched with the extrusion plug in shape, the contact area between the extrusion plug and the U-shaped seat is increased, and the improvement of the stability of the U-shaped seat for supporting the extrusion plug is facilitated.

Preferably, the first limiting part comprises a limiting strip arranged on the inner side of the U-shaped seat, the second limiting part comprises a limiting groove circumferentially arranged on the outer side wall of the extrusion plug, and the limiting strip is arranged in the limiting groove. The extrusion plug is matched with the limiting groove in the extrusion plug through the limiting strip on the U-shaped seat to realize limiting in the front-back direction, and the front-back positions of the extrusion plug and the U-shaped seat are kept stable.

Preferably, the limiting strip is a U-shaped strip. The U-shaped strip extends along the inner side face of the U-shaped seat, so that the length of the limiting strip is longer, the U-shaped strip is arranged in a limiting groove in the extrusion plug, the U-shaped strip is longer in contact with the extrusion plug, and the extrusion plug can be more effectively limited in the front-back direction.

Preferably, a plurality of centering adjusting screw holes are formed in the bearing seat and are circumferentially arranged along the axis of the extrusion plug, centering adjusting screws are connected with centering adjusting screws in the centering adjusting screw holes in an inner threaded mode, the tail ends of the centering adjusting screws are abutted to the outer side wall of the extrusion plug, and the centering adjusting screws are rotated to adjust the center position of the extrusion plug. After the extrusion plug is installed, the subsequent process can be carried out only by accurately aligning the ingot containing cavity of the ingot containing barrel on the reverse extruder. Different extruded plugs may have a slight error in size due to variations in processing. The central point that extrudees the end cap can be adjusted in centering adjusting screw and centering adjusting screw's setting for the flourishing spindle chamber of flourishing spindle drum is aimed at to the extrusion end cap, even different extrusion end caps are installed on bearing seat, also can adjust the central point of extrusion end cap to suitable position through rotating centering adjusting screw, is favorable to expanding bearing seat's application scope.

Preferably, the movable beam is fixedly provided with a connecting seat, the bearing seat is fixedly connected to the front side of the connecting seat, and a heating device is arranged in the connecting seat. The metal rod needs to be heated before entering the ingot containing barrel, the extrusion plug can contact the metal rod in the extrusion process, the heating device arranged on the connecting seat can heat and preserve the temperature of the extrusion plug on the bearing seat, so that the temperature of the extrusion plug, the ingot containing barrel and the metal rod is kept balanced, and the metal rod is prevented from being cooled in the extrusion process.

Preferably, an electric heating tube is circumferentially arranged inside the connecting seat, and the heating device comprises the electric heating tube. The electric heating tube can preserve heat for the extrusion plug.

Preferably, the upside of extrusion end cap is equipped with the hoist and mount screw, and the hoist and mount screw extends along upper and lower direction, and the hoist and mount screw is used for connecting the hoist and mount screw for can reciprocate the extrusion end cap and pass in and out the bearing seat from the opening. Install hoist and mount screw spiral in the hoist and mount screw, then operating personnel upwards or move hoist and mount screw downwards, can follow the opening and will extrude the end cap and move out of the bearing seat or place into in the bearing seat, conveniently remove the extrusion end cap.

Preferably, the extrusion plug is provided with a first through hole, the movable beam is provided with a second through hole, the first through hole and the second through hole both extend in the front-back direction, and the first through hole is opposite to the second through hole. The reverse extruder produces tubular metal parts through a process of piercing the metal rod. The perforating rods for perforating are used for perforating the metal rods from the first through holes and the second through holes into the ingot containing cavities of the ingot containing barrels.

Preferably, the first through hole includes a third through hole and a fourth through hole that are communicated with each other, the third through hole is located on one side far away from the movable beam, the fourth through hole is located on one side close to the movable beam, the diameter of the fourth through hole gradually decreases in the direction from close to far away from the movable beam, and the diameter of one side far away from the movable beam of the fourth through hole is equal to the diameter of the third through hole. When the piercing member passes through the first through hole, the axis of the piercing member may not be aligned with the axis of the first through hole due to positional deviation. When this kind of condition appeared, the pore wall that can touch the fourth through-hole after the front end entering fourth through-hole of perforating rod, nevertheless because the pore wall of fourth through-hole is the slope setting, can greatly reduced to the harm of perforating rod or extrusion end cap, reduce the maintenance degree of difficulty.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an extrusion plug structure in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a support base according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an extrusion plug according to an embodiment of the present invention;

fig. 4 is a schematic structural view of another extrusion plug according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of an embodiment of the present invention showing an extrusion plug structure;

fig. 6 is a schematic structural view of the movable beam, the connecting seat and the supporting seat according to the embodiment of the present invention.

In the drawings: 1-movable beam, 11-second through hole, 2-bearing seat, 21-first limiting part, 22-left limiting part, 23-right limiting part, 24-opening, 25-centering adjusting screw hole, 3-extrusion plug, 31-first through hole, 311-third through hole, 312-fourth through hole, 33-second limiting part, 34-hoisting screw hole, 35-mounting part, 36-extrusion part, 4-connecting seat and 41-heating device.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indication is referred to in the embodiments of the present invention, the directional indication is only used for explaining a relative position relationship between components, a motion situation, and the like in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 6, an extrusion plug structure includes: the device comprises a movable beam 1, a bearing seat 2 and an extrusion plug 3; the supporting seat 2 is fixedly connected to the front side of the movable beam 1, and the extrusion plug 3 is detachably arranged on the supporting seat 2; the first limiting part 21 is arranged on the bearing seat 2, the second limiting part 33 is arranged on the extrusion plug 3, the first limiting part 21 and the second limiting part 33 are arranged in a matching mode, and the first limiting part 21 and the second limiting part 33 can limit the extrusion plug 3 to move in the front-back direction; the bearing seat 2 comprises a left limiting part 22 and a right limiting part 23, the extrusion plug 3 is arranged between the left limiting part 22 and the right limiting part 23, an opening 24 is formed in the upper side of the bearing seat 2, the opening 24 is arranged between the left limiting part 22 and the right limiting part 23, the extrusion plug 3 can enter and exit the bearing seat 2 through the opening 24, and the left limiting part 22 and the right limiting part 23 can limit the extrusion plug 3 to move in the left-right direction.

The utility model discloses in, install extrusion end cap 3 on walking beam 1, only need will extrude end cap 3 through opening 24 and place in bearing seat 2, under the cooperation of the spacing portion 33 of first spacing portion 21 of bearing seat 2 and the second of extrusion end cap 3, extrusion end cap 3 receives the restriction in the ascending removal of front and back side, under the cooperation of the spacing portion of third and the spacing portion of fourth of bearing seat 2, the extrusion end cap 3 of placing in bearing seat 2 receives the restriction in the ascending removal of left and right sides side. The installation process of the extrusion plug 3 is convenient, the consumed manpower is less, the installation is short in time consumption, and the work efficiency of the reverse extruder is improved.

In some embodiments, referring to fig. 2 and 3, the support base 2 is a U-shaped base, the U-shaped base is configured to match the shape of the extrusion plug 3, the left limiting portion 22 is a left portion of the U-shaped base, and the right limiting portion 23 is a right portion of the U-shaped base. The U-shaped seat is matched with the extrusion plug 3 in shape, the contact area between the extrusion plug 3 and the U-shaped seat is increased, and the stability of the U-shaped seat for supporting the extrusion plug 3 is improved. The lower portion of the U-shaped seat is semicircular and the extrusion plug 3 is cylindrical as a whole, and the shape of the extrusion plug 3 matches the shape of the U-shaped seat, so that the U-shaped seat is suitable for mounting the extrusion plug 3 shown in fig. 3.

In other embodiments, the support base 2 comprises a support plate, and the left limiting portion 22 and the right limiting portion 23 are both limiting plates, and the left limiting portion 22 and the right limiting portion 23 are respectively disposed on the left side and the right side of the support plate. The left limiting part 22 and the right limiting part 23 are both vertical to the bearing plate. In some cases, the portion of the pressing plug 3 mounted on the support base 2 may be cubic, and the support base 2 described herein matches the shape of such a pressing plug 3, suitable for mounting such a pressing plug 3.

In some embodiments, the first position-limiting portion 21 includes a position-limiting strip disposed inside the U-shaped seat, and the second position-limiting portion 33 includes a position-limiting groove circumferentially disposed on the outer sidewall of the extrusion plug 3, and the position-limiting strip is disposed in the position-limiting groove. The extrusion plug 3 realizes the spacing in the front-back direction through the cooperation of the spacing strip on the U-shaped seat and the spacing groove on the extrusion plug 3, and keeps the front-back positions of the extrusion plug 3 and the U-shaped seat stable.

In other embodiments, the first position-limiting portion 21 is a position-limiting plate disposed at the front side of the U-shaped seat, the first position-limiting portion 21 is disposed near the bottom end of the U-shaped seat, and the upper side of the first position-limiting portion 21 protrudes out of the bottom of the inner side of the U-shaped seat. The second stopper 33 is a lower portion of the pressing plug 3. After the extrusion plug 3 is placed in the bearing seat 2, under the cooperation of the first limiting portion 21 and the movable beam 1, the extrusion plug 3 is restricted from moving in the front-rear direction.

In some embodiments, the stop strip is a U-shaped strip. The U-shaped strip extends along the inner side face of the U-shaped seat, so that the length of the limiting strip is longer, the U-shaped strip is arranged in a limiting groove in the extrusion plug 3, the part of the U-shaped strip, which is in contact with the extrusion plug 3, is longer, and the extrusion plug 3 can be more effectively limited in the front-back direction.

Further, the U-shaped strip extends along the U-shaped inner side face of the U-shaped seat, and the U-shaped strip extends from the upper end of the left side part of the U-shaped seat to the upper end of the right side part of the U-shaped seat.

In some embodiments, the support base 2 is provided with a plurality of centering adjustment screw holes 25, the plurality of centering adjustment screw holes 25 are circumferentially arranged along the axis of the extrusion plug 3, a centering adjustment screw is screwed into the centering adjustment screw hole 25, the tail end of the centering adjustment screw abuts against the outer side wall of the extrusion plug 3, and the centering adjustment screw is rotated to adjust the center position of the extrusion plug 3. After the extrusion plug 3 is installed, the subsequent process can be carried out only by accurately aligning the ingot containing cavity of the ingot containing barrel on the reverse extruder. The dimensions of the different extruded plugs 3 may be subject to slight tolerances due to tolerances in the machining. The central point that extrusion end cap 3 can be adjusted in setting up of centering adjusting screw 25 and centering adjusting screw puts for the flourishing spindle chamber of flourishing spindle barrel is aimed at to extrusion end cap 3, even different extrusion end caps 3 are installed on bearing seat 2, also can adjust the central point that extrudes end cap 3 to suitable position through rotating centering adjusting screw, is favorable to expanding the application scope of bearing seat 2.

Furthermore, the bearing seat 2 is a U-shaped seat, the centering adjusting screw hole 25 is communicated with the inner side surface and the outer side surface of the U-shaped seat, and a centering adjusting screw penetrates into the centering adjusting screw hole 25 from the outer side surface of the U-shaped seat until the tail end of the centering adjusting screw protrudes out of the inner side surface of the U-shaped seat. After the extrusion plug 3 is placed in the U-shaped seat, the tail end of the centering adjusting screw is abutted to the outer side wall of the extrusion plug 3. At the moment, the center position of the extrusion plug 3 can be adjusted by rotating the centering adjusting screw.

The extrusion plug 3 comprises an installation part 35 installed on the bearing seat 2 and an extrusion part 36 which can extend into an ingot containing cavity of an ingot containing barrel to participate in metal bar extrusion, the extrusion part 36 is fixedly connected to the front side of the installation part 35, the ingot containing barrel is located on the front side of the extrusion part 36, and the second limiting part 33 is arranged on the installation part 35. Because the ingot containing cavity of the ingot containing barrel is generally a cylindrical cavity, the extrusion part 36 is generally cylindrical, the axis of the extrusion plug 3 refers to the axis of the extrusion part 36, the axis of the extrusion plug 3 extends in the front-back direction, and the central position of the extrusion plug 3 refers to the position of the axis of the extrusion plug 3. The overall profile of the extruded plug 3 is generally as shown in fig. 3, and the mounting portion 35 of the extruded plug 3 is cylindrical, and the mounting portion 35 and the extruded portion 36 are coaxially arranged, so that the axis of the extruded plug 3 can also be understood as the axis of the overall structure of the extruded plug 3. In a few cases, if the mounting portion 35 has a shape other than a cylindrical shape, such as a cubic shape, the axis of the pressing plug 3 should be understood as the axis of the pressing portion 36.

In some embodiments, the movable beam 1 is fixedly provided with a connecting seat 4, the supporting seat 2 is fixedly connected to the front side of the connecting seat 4, and the heating device 41 is arranged in the connecting seat 4. The metal rod needs to be heated before entering the ingot containing barrel, the extrusion plug 3 can contact the metal rod in the extrusion process, the heating device 41 arranged on the connecting seat 4 can heat and preserve the temperature of the extrusion plug 3 on the bearing seat 2, so that the temperatures of the extrusion plug, the ingot containing barrel and the metal rod are kept balanced, and the metal rod is prevented from being cooled in the extrusion process.

In some embodiments, the connecting socket 4 is circumferentially provided with an electric heating tube inside, and the heating device 41 includes an electric heating tube electrically connected to an external power source. The electric heating tube can preserve heat for the extrusion plug 3.

In other embodiments, the heating device comprises an electromagnetic induction heating coil and a thermocouple temperature control device. The electromagnetic induction heating coil is thermally connected with the thermocouple temperature control device and is circumferentially arranged around the axis of the connecting seat 4. The temperature control precision of the connecting seat 4 is high, and better guarantee can be provided for the heat preservation of the extrusion plug 3.

In some embodiments, the upper side of the extrusion plug 3 is provided with a lifting screw hole 34, the lifting screw hole 34 extends in the up-down direction, and the lifting screw hole 34 is used for connecting a lifting screw, so that the extrusion plug 3 can move up and down to enter and exit the bearing seat 2 from the opening 24. The hoisting screws are spirally arranged in the hoisting screw holes 34, and then the hoisting screws are moved upwards or downwards by an operator, so that the extrusion plug 3 can be moved out of the bearing seat 2 or placed in the bearing seat 2 from the opening 24.

Furthermore, a handle is arranged at the upper end of the hoisting screw, and after the hoisting screw is spirally installed in the punctiform screw hole by an operator, the hoisting screw and the extrusion plug 3 are fixed up and down. After an operator grips the handle, the lifting screw and the extrusion plug 3 are convenient to move up and down.

In some embodiments, referring to fig. 3, a first through hole 31 is formed in the extrusion plug 3, a second through hole 11 is formed in the movable beam 1, the first through hole 31 and the second through hole 11 both extend in the front-back direction, and the first through hole 31 is opposite to the second through hole 11. The reverse extruder, when producing tubular metal parts, requires a process of piercing the metal rod. The perforating rods for perforating the metal rods pass through the first through holes 31 and the second through holes 11 and enter the ingot containing cavities of the ingot containing barrels.

In some embodiments, referring to fig. 5, the first through hole 31 includes a third through hole 311 and a fourth through hole 312 that are communicated with each other, the third through hole 311 is located on a side away from the movable beam 1, the fourth through hole 312 is located on a side close to the movable beam 1, a diameter of the fourth through hole 312 gradually decreases in a direction from the side close to the movable beam 1, and a diameter of the fourth through hole 312 on the side away from the movable beam 1 is equal to a diameter of the third through hole 311. When the piercing post passes through first through hole 31, the axis of the piercing post may not be aligned with the axis of first through hole 31 due to the positional deviation. When the situation occurs, the front end of the piercing post can touch the hole wall of the fourth through hole 312 after entering the fourth through hole 312, but the hole wall of the fourth through hole 312 is obliquely arranged, so that the damage to the piercing post or the extrusion plug 3 can be greatly reduced, and the maintenance difficulty is reduced.

In other embodiments, referring to fig. 4, there is another extruded plug 3, and the extruded plug 3 has a solid structure. If the reverse extruder is not required to produce tubular workpieces, it is not necessary to perforate the metal at the time of production. For example, in the production of a solid rod, the extrusion plug 3 shown in fig. 4 may be used, and the extrusion plug 3 has a solid structure and is suitable for the production of a solid rod.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An extruded plug structure, comprising: the device comprises a movable beam (1), a bearing seat (2) and an extrusion plug (3);

the bearing seat (2) is fixedly connected to the front side of the movable beam (1), and the extrusion choke plug (3) is detachably arranged on the bearing seat (2);

a first limiting part (21) is arranged on the bearing seat (2), a second limiting part (33) is arranged on the extrusion plug (3), the first limiting part (21) and the second limiting part (33) are arranged in a matching mode, and the first limiting part (21) and the second limiting part (33) can limit the extrusion plug (3) to move in the front-back direction;

support seat (2) are including spacing portion (22) in a left side and right spacing portion (23), extrusion end cap (3) are located spacing portion (22) in a left side with between spacing portion (23) in the right side, the upside of support seat (2) is equipped with opening (24), opening (24) are located spacing portion (22) in a left side with between spacing portion (23) in the right side, extrusion end cap (3) can warp opening (24) business turn over support seat (2), spacing portion (22) in a left side with spacing portion (23) in the right side can restrict extrusion end cap (3) are followed left right direction and are removed.

2. The extruded plug structure of claim 1, wherein: the bearing seat (2) is a U-shaped seat, the U-shaped seat is matched with the shape of the extrusion plug (3), the left limiting part (22) is the left part of the U-shaped seat, and the right limiting part (23) is the right part of the U-shaped seat.

3. The extruded plug structure of claim 2, wherein: the first limiting part (21) comprises a limiting strip arranged on the inner side of the U-shaped seat, the second limiting part (33) comprises a limiting groove circumferentially arranged on the outer side wall of the extrusion plug (3), and the limiting strip is arranged in the limiting groove.

4. The extruded plug structure of claim 3, wherein: the limiting strips are U-shaped strips.

5. The extruded plug structure of claim 1, wherein: be equipped with a plurality of centering on bearing seat (2) and adjust screw (25), it is a plurality of screw (25) are adjusted in the centering are followed the axis circumference of extrusion end cap (3) arranges, screw (25) female connection is adjusted in the centering has centering adjusting screw, centering adjusting screw's tail end with the lateral wall butt of extrusion end cap (3), rotate centering adjusting screw is adjustable the central point of extrusion end cap (3) puts.

6. The extruded plug structure of claim 1, wherein: the movable beam (1) is fixedly provided with a connecting seat (4), the bearing seat (2) is fixedly connected to the front side of the connecting seat (4), and a heating device (41) is arranged in the connecting seat (4).

7. The extruded plug structure of claim 6, wherein: an electric heating tube is circumferentially arranged in the connecting seat (4), and the heating device (41) comprises the electric heating tube.

8. The extruded plug structure of claim 1, wherein: the upside of extrusion end cap (3) is equipped with hoist and mount screw (34), hoist and mount screw (34) extend along upper and lower direction, hoist and mount screw (34) are used for connecting the hoist and mount screw for can reciprocate extrusion end cap (3) are followed opening (24) business turn over bearing seat (2).

9. The extruded plug structure of claim 1, wherein: be equipped with first through-hole (31) on extrusion end cap (3), be equipped with second through-hole (11) on walking beam (1), first through-hole (31) with second through-hole (11) all extend along the fore-and-aft direction, first through-hole (31) with second through-hole (11) position is just right.

10. The extruded plug structure of claim 9, wherein: first through-hole (31) are including third through-hole (311) and fourth through-hole (312) that communicate each other, third through-hole (311) are located and keep away from one side of walking beam (1), fourth through-hole (312) are located and are close to one side of walking beam (1), the diameter of fourth through-hole (312) is being close to keeping away from diminish gradually in the direction of walking beam (1), keeping away from of fourth through-hole (312) the diameter of one side of walking beam (1) with the diameter of third through-hole (311) equals.