阅读说明：本技术 一种钢管双头封口机 (Steel pipe double-end capper ) 是由 杨华杰 王明森 齐嘉卉 卜相涛 高印军 王大勇 杜恒志 于 2019-10-29 设计创作，主要内容包括：本发明公开了一种钢管双头封口机,包括两个封头机构和两个夹紧组件；封头机构包括中空的外主轴,外主轴内固设有带有偏心孔的轴套,轴套的偏心孔内转动连接有内主轴,内主轴自转并绕外主轴的轴心旋转；内主轴的一端固设有封口模；封口模上设有内凹的弧形槽；钢管封口时,封口模的弧形槽内壁对钢管端部进行挤压；本发明可以实现封口模旋转,钢管固定不动,避免钢管窜动现象,提高封头质量,减少残次品,提高生产效益；可实现钢管两端同时封头,避免二次装夹,提高生产效率；可有效避免封口时钢管端部发生氧化而产生氧化皮,提高封头质量；可适用于任意长度的钢管,使用范围广,实用性高；可以自动定位钢管两端的伸出长度,提高定位准确性。(The invention discloses a steel pipe double-end sealing machine which comprises two end enclosure mechanisms and two clamping components; the end socket mechanism comprises a hollow outer main shaft, a shaft sleeve with an eccentric hole is fixedly arranged in the outer main shaft, the inner main shaft is rotatably connected in the eccentric hole of the shaft sleeve, and the inner main shaft rotates around the axis of the outer main shaft; one end of the inner main shaft is fixedly provided with a sealing die; the sealing die is provided with an inwards concave arc-shaped groove; when the steel pipe is sealed, the inner wall of the arc-shaped groove of the sealing die extrudes the end part of the steel pipe; the invention can realize the rotation of the sealing die, fix the steel pipe, avoid the phenomenon of steel pipe movement, improve the quality of the end socket, reduce defective goods and improve the production benefit; the two ends of the steel pipe can be simultaneously sealed, secondary clamping is avoided, and the production efficiency is improved; the end part of the steel pipe can be effectively prevented from being oxidized to generate oxide skin during sealing, and the quality of the end socket is improved; the method is suitable for steel pipes with any length, and has wide application range and high practicability; the extending lengths of the two ends of the steel pipe can be automatically positioned, and the positioning accuracy is improved.)

1. The utility model provides a steel pipe double-end capper which characterized in that: comprises two end enclosure mechanisms (4) and two clamping components which are respectively arranged on a machine body (1) in a sliding way; the two clamping components respectively clamp and fix two ends of the steel pipe, and the two end sealing mechanisms (4) respectively seal the two ends of the steel pipe simultaneously.

2. The steel tube double-end sealing machine as claimed in claim 1, characterized in that: the end socket mechanism (4) comprises a hollow outer main shaft (227), a shaft sleeve (24) with an eccentric hole is fixedly arranged in the outer main shaft (227), an inner main shaft (218) is rotatably connected in the eccentric hole of the shaft sleeve (24), and the inner main shaft (218) rotates around the axial lead of the outer main shaft (227) while rotating; a sealing die (2110) is fixedly arranged at one end of the inner main shaft (218); the sealing die (2110) is provided with an inwards concave arc-shaped groove, and the axial lead of the arc-shaped groove is the same as that of the inner main shaft (218); when the steel pipe is sealed, the inner wall of the arc-shaped groove of the sealing die (2110) extrudes the end part of the steel pipe.

3. The steel tube double-end sealing machine as claimed in claim 1, characterized in that: the clamping assembly comprises a pressing mechanism (16) for pressing and fixing the steel pipe, a steel pipe positioning mechanism (19) for positioning the extending length of the end part of the steel pipe, a support positioning mechanism (18) for determining the initial position of the end sealing mechanism (4) and a locking mechanism for locking and fixing the pressing mechanism (16).

4. The steel tube double-end sealing machine as claimed in claim 2, characterized in that: a protective gas cover (229) is fixedly sleeved on the outer main shaft (227); and the sealing die (2110) is provided with a protective gas outlet (28) which penetrates through the bottom of the concave arc-shaped groove, and the protective gas outlet (28) is communicated with a protective gas inlet (2291) on the protective gas cover (229) through an internal gas channel.

5. The steel tube double-end sealing machine as claimed in claim 3, characterized in that: the pressing mechanism (16) comprises an upper pressing die (167) and a lower pressing die (168), and the upper pressing die (167) is fixed on the bracket (15); the pressing lower die (168) is fixed on the lower die seat plate (1613); the bracket (15) and the lower die base plate (1613) are respectively arranged on the machine body (1) in a sliding manner; the bracket (15) and the lower die base plate (1613) are fixedly connected through a connecting plate (169).

6. The steel tube double-end sealing machine as claimed in claim 3, characterized in that: the steel pipe positioning mechanism (19) comprises a positioning shaft (191), and the positioning shaft (191) is arranged on the pressing mechanism (16) corresponding to the extending position of the steel pipe; when the end part of the steel pipe is positioned, the side part of the positioning shaft (191) is abutted against the end part of the steel pipe; the positioning shaft (191) is vertically arranged in a sliding manner.

7. The steel tube double-end sealing machine as claimed in claim 2, characterized in that: the other end of the inner main shaft (218) is in transmission connection with a connecting shaft (216) through a cross universal coupling (217); the connecting shaft (216) is in transmission connection with the inner spindle motor (211) through a belt and a belt pulley; the outer spindle (227) is in transmission connection with an outer spindle motor (221) through a belt and a belt pulley; the outer main shaft (227) is rotatably connected in the mounting sleeve (225) through a bearing (226).

8. The steel tube double-end sealing machine as claimed in claim 3, characterized in that: the bracket positioning mechanism (18) is arranged on the side part of the bracket (15); the bracket positioning mechanism (18) comprises a positioning inserted rod (181), the positioning inserted rod (181) is transversely arranged in a rod sleeve (182) in a sliding manner, and the rod sleeve (182) transversely penetrates through the bracket (15); the end part of the positioning inserted bar (181) can be inserted and fixed or separated from the positioning seat (185); the positioning seat (185) is fixedly arranged on the main shaft bracket (20).

9. The steel tube double-end sealing machine as claimed in claim 3, characterized in that: the locking device (17) comprises a locking block (171); the locking block (171) is fixedly connected to the side part of the bracket (15); the bottom of the locking block (171) is provided with a long groove; a locking bolt (174) is arranged on one side, perpendicular to the long groove, of the locking block (171); the locking bolt (174) penetrates into the long groove of the locking block (171); the locking block (171) is arranged on the fixing plate (14) in a sliding manner through the long-shaped groove; a locking plate (173) is arranged in the long groove of the locking block (171); when the locking bolt (174) is locked, the end part of the locking bolt tightly pushes the locking plate (173) and the fixing plate (14).

10. The steel tube double-end sealing machine as claimed in claim 2, characterized in that: the end sealing mechanism (4) further comprises a heating system (23), the heating system (23) is fixed on the spindle support (20), the heating system (23) comprises an induction heater (232), an induction coil (234) is arranged on the induction heater (232), and the induction coil (234) is arranged at the front end of the sealing mold (2310); the induction coil (234) is of a circular ring structure.

Technical Field

The invention relates to a steel pipe double-end sealing machine, and belongs to the technical field of sealing machines.

Background

In the production process of some special metal round pipe products, the end part of a hollow round pipe needs to be sealed, so that the end part of the hollow round pipe is a sealing mechanism. Pipe end capper on the existing market generally adopts the frock to press from both sides tight steel pipe to make the steel pipe rotatory, when sealing, at first heat the steel pipe end to the red hot state, then rotate through the swing arm and drive depended wheel or profiling and seal, seal current capper and have following not enough:

1. the steel pipe of the existing sealing machine is rotated, a sealing mould is not moved, the steel pipe can generate a play phenomenon when being rotated, the condition that the end part is extruded unevenly is easily caused when the sealing is carried out, a small gap is easily generated on a sealing head, the working medium leakage can be caused after a long time, the service life of the steel pipe is shortened, the sealing effect is reduced, and the defective rate is high.

2. The existing sealing machine is generally operated in a single-end mode, when two ends of a steel pipe need to be sealed, the sealing head at one end needs to be firstly finished, then the steel pipe is taken down, and the sealing at the other end is carried out after the steel pipe is clamped for the second time, so that the steel pipe sealing head mode needs to be clamped for the second time, the time consumption is high, and the production efficiency is low.

3. The existing sealing machine needs to heat the steel pipe in the sealing process, the red hot steel pipe is exposed in the air and can be oxidized to generate oxide skin, the oxide skin can be extruded into the sealing head in the extruding process, the sealing head effect is influenced, and the reduction is realized.

4. The existing sealing machine can only aim at steel pipes with one length or a plurality of lengths, can not adapt to steel pipes with any length, and has small application range and low practicability.

5. When the existing sealing machine clamps and fixes a steel pipe, the length of the steel pipe extending out of the clamping mechanism is generally determined manually, so that the extending lengths of two ends of the steel pipe are different when the steel pipe is clamped, the positioning is inaccurate, and the sealing effect is influenced.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

The invention aims to solve the technical problem that the defects are overcome, and provides a steel pipe double-end sealing machine which can achieve the following purposes:

1. the sealing die can rotate, the steel pipe is fixed, the steel pipe moving phenomenon is avoided, the end socket quality is improved, defective products are reduced, and the production benefit is improved.

2. Can realize the steel pipe both ends head simultaneously, avoid the secondary clamping, improve production efficiency.

3. The end part of the steel pipe can be effectively prevented from being oxidized to generate oxide skin during sealing, and the quality of the end socket is improved.

4. Can be applicable to the steel pipe of arbitrary length, application range is wide, and the practicality is high.

5. The extending lengths of the two ends of the steel pipe can be automatically positioned, and the positioning accuracy is improved.

In order to solve the technical problems, the invention adopts the following technical scheme: a steel pipe double-end sealing machine comprises two sealing head mechanisms and two clamping components which are respectively arranged on a machine body in a sliding mode; the two clamping components respectively clamp and fix two ends of the steel pipe, and the two end sealing mechanisms respectively seal the two ends of the steel pipe simultaneously.

Further, the end sealing mechanism comprises a hollow outer main shaft, a shaft sleeve with an eccentric hole is fixedly arranged in the outer main shaft, an inner main shaft is rotatably connected in the eccentric hole of the shaft sleeve, and the inner main shaft rotates around the axis line of the outer main shaft while rotating; a sealing die is fixedly arranged at one end of the inner main shaft; the sealing die is provided with an inwards concave arc-shaped groove, and the axial lead of the arc-shaped groove is the same as that of the inner main shaft; when the steel pipe is sealed, the inner wall of the arc-shaped groove of the sealing die extrudes the end part of the steel pipe.

Furthermore, the clamping assembly comprises a pressing mechanism for pressing and fixing the steel pipe, a steel pipe positioning mechanism for positioning the extending length of the end part of the steel pipe, a support positioning mechanism for determining the initial position of the end sealing mechanism and a locking mechanism for locking and fixing the pressing mechanism.

Furthermore, a protective gas cover is fixedly sleeved on the outer main shaft; and the sealing die is provided with a protective gas outlet which is communicated to the bottom of the concave arc-shaped groove, and the protective gas outlet is communicated with a protective gas inlet on the protective gas cover through an internal gas channel.

Furthermore, the pressing mechanism comprises an upper pressing die and a lower pressing die, and the upper pressing die is fixed on the support; the pressing lower die is fixed on the lower die base plate; the bracket and the lower die base plate are respectively arranged on the machine body in a sliding manner; the support and the lower die seat plate are fixedly connected through a connecting plate.

Furthermore, the steel pipe positioning mechanism comprises a positioning shaft, and the positioning shaft is arranged on the pressing mechanism at a position corresponding to the extending position of the steel pipe; when the end part of the steel pipe is positioned, the side part of the positioning shaft is abutted against the end part of the steel pipe; the positioning shaft is vertically arranged in a sliding mode.

Furthermore, the other end of the inner main shaft is in transmission connection with the connecting shaft through a cross universal coupling; the connecting shaft is in transmission connection with the inner spindle motor through a belt and a belt pulley; the outer spindle is in transmission connection with an outer spindle motor through a belt and a belt pulley; the outer main shaft is rotatably connected in the mounting sleeve through a bearing.

Further, the bracket positioning mechanism is arranged on the side part of the bracket; the support positioning mechanism comprises a positioning inserted rod, the positioning inserted rod is transversely arranged in a rod sleeve in a sliding mode, and the rod sleeve transversely penetrates through the support; the end part of the positioning inserted bar can be fixedly inserted into or separated from the positioning seat; the positioning seat is fixedly arranged on the main shaft bracket.

Further, the locking device comprises a locking block; the locking block is fixedly connected to the side part of the bracket; the bottom of the locking block is provided with a long slot; a locking bolt is arranged on one side, perpendicular to the long groove, of the locking block; the locking bolt penetrates into the long groove of the locking block; the locking block is arranged on the fixing plate in a sliding manner through the long-shaped groove; a locking plate is arranged in the long groove of the locking block; when locking, the end part of the locking bolt tightly pushes the locking plate and the fixing plate.

Furthermore, the end sealing mechanism further comprises a heating system, the heating system is fixed on the main shaft support, the heating system comprises an induction heater, an induction coil is arranged on the induction heater, and the induction coil is arranged at the front end of the sealing die; the induction coil is of a circular ring structure.

After the technical scheme is adopted, compared with the prior art, the invention has the following advantages:

1. the sealing die can rotate, the steel pipe is fixed, the steel pipe moving phenomenon is avoided, the end socket quality is improved, defective products are reduced, and the production benefit is improved.

2. Can realize the steel pipe both ends head simultaneously, avoid the secondary clamping, improve production efficiency.

3. The end part of the steel pipe can be effectively prevented from being oxidized to generate oxide skin during sealing, and the quality of the end socket is improved.

4. Can be applicable to the steel pipe of arbitrary length, application range is wide, and the practicality is high.

5. The extending lengths of the two ends of the steel pipe can be automatically positioned, and the positioning accuracy is improved.

6. The upper and lower compression dies can be synchronously adjusted, the alignment of the two compression dies is ensured, the time for replacing different steel pipes is less, and the efficiency is high; and the initial position of the sealing mechanism is automatically adjusted after the steel pipe is replaced.

7. The invention can also seal the single end of the steel pipe, and has strong practicability.

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic of the feed system;

FIG. 3 is a schematic structural view of a clamping system;

FIG. 4 is a schematic view of the hold-down mechanism;

FIG. 5 is a top view of the hold-down mechanism;

FIG. 6 is a schematic structural view of the locking mechanism;

FIG. 7 is a schematic structural view of a stent positioning mechanism;

FIG. 8 is a schematic structural view of a steel pipe positioning mechanism;

FIG. 9 is a schematic structural view of the capping mechanism;

FIG. 10 is a cross-sectional view of the capping mechanism;

FIG. 11 is a schematic structural view of a heating system;

FIG. 12 is an enlarged view at A of FIG. 10;

in the figure, the position of the upper end of the main shaft,

1-machine body, 2-feeding system, 3-clamping system, 4-end sealing mechanism, 5-control box, 6-control cabinet, 7-feeding motor, 8-motor flange, 9-lead screw front support, 10-ball screw, 11-nut, 12-lead screw rear support, 13-linear guide rail, 131-slide block, 14-fixing plate, 15-support, 151-bottom beam, 16-pressing mechanism, 161-pressing oil cylinder, 162-oil cylinder flange, 163-connecting nut, 164-linear bearing, 165-fixing piece, 166-connecting block, 167-pressing upper die, 168-pressing lower die, 169-connecting plate, 1610-limiting support plate, 1611-limiting shaft seat plate, 1612-limiting shaft, 1613-lower die seat plate, 1614-sliding shaft, 17-locking mechanism, 171-locking block, 172-adjusting backing plate, 173-locking plate, 174-locking bolt, 18-bracket positioning mechanism, 181-positioning inserted rod, 182-rod sleeve, 183-sensor, 184-sensor bracket, 185-positioning seat, 19-steel tube positioning mechanism, 191-positioning shaft, 192-dust ring, 193-sliding sleeve, 194-connecting plate, 195-fixing sleeve, 196-cylinder, 20-spindle bracket, 201-bottom plate, 202-vertical supporting plate, 21-inner spindle assembly, 211-inner spindle motor, 212-inner spindle motor mounting plate, 213-inner spindle driving pulley, 214-inner spindle synchronous belt, 215-inner spindle driven pulley, 216-connecting shaft, 217-cross universal coupling, 218-inner spindle, 2181-third protection air hole, 2182-central air hole, 219-die connecting disc, 2110-sealing die, 2111-bearing seat, 22-outer spindle assembly, 221-outer spindle motor, 222-outer spindle driving pulley, 223-outer spindle synchronous belt, 224-outer spindle driven pulley, 225-mounting sleeve, 2251-annular water tank, 2252-sealing groove, 226-bearing, 227-outer spindle, 2271-first protection air hole, 228-bearing gland, 229-protection air cover, 2291-protection air inlet, 2292-first groove, 2210-heat sink, 2211-dust cover, 2212-fixing plate, 23-heating system, 231-mounting bracket, 232-induction heater, 233-hoop, 24-shaft sleeve, 241-second groove, 242-second protection air hole, 25-support riser, 251-cooling water channel, 252-water inlet, 253-water outlet, 26-first air transmission channel, 27-second air transmission channel and 28-protection air outlet.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.