CN116673539A - Pipe axial feeding mechanism - Google Patents

Pipe axial feeding mechanism Download PDF

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Publication number
CN116673539A
CN116673539A CN202310615390.2A CN202310615390A CN116673539A CN 116673539 A CN116673539 A CN 116673539A CN 202310615390 A CN202310615390 A CN 202310615390A CN 116673539 A CN116673539 A CN 116673539A
Authority
CN
China
Prior art keywords
pipe
push rod
pipe fitting
clamping block
plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310615390.2A
Other languages
Chinese (zh)
Inventor
龙晓明
谢湘峰
李永盈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oms Machinery Co Ltd
Original Assignee
Oms Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oms Machinery Co Ltd filed Critical Oms Machinery Co Ltd
Priority to CN202310615390.2A priority Critical patent/CN116673539A/en
Publication of CN116673539A publication Critical patent/CN116673539A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D21/00—Machines or devices for shearing or cutting tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00—Accessories for shearing machines or shearing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00—Accessories for shearing machines or shearing devices
    • B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
    • B23D33/04—Arrangements for holding, guiding, and/or feeding work during the operation for making circular cuts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

The invention discloses a pipe axial feeding mechanism which comprises a machine base, a push rod and a driving device capable of driving the push rod to move forwards and backwards relative to the machine base, wherein the maximum radial dimension of the push rod is smaller than or equal to the outer diameter of the pipe, the front end of the push rod is provided with a plug capable of being inserted into the inner diameter of the pipe, part or all of the outer side wall of the plug is attached to the inner side wall of the pipe, and a step capable of being abutted against the end face of the pipe is formed between the rear end of the plug and the outer side wall of the push rod. The invention can reduce the excess materials as much as possible when being used for feeding the pipe cutting device in the axial direction, and is beneficial to improving the utilization rate of raw materials.

Description

Pipe axial feeding mechanism
Technical Field
The invention relates to the technical field of straight pipe machining, in particular to a pipe fitting axial feeding mechanism.
Background
In many industrial products, straight pipes are used as raw materials, for example, heat exchange pipes in heat exchangers, and in the production process, long straight pipes are cut into proper lengths, and then the heat exchange pipes can be formed through some processing.
In the prior art, when cutting the pipe fitting, the pipe fitting is clamped by adopting a pipe clamping device in a general axial feeding mode, then one end of the pipe fitting is aligned with a feeding hole of a pipe cutting mechanism, and then the pipe fitting is pushed axially, so that the pipe fitting can be pushed into the pipe cutting mechanism. In the patent with publication number CN115921676a, the raw material straight pipe adopts this feeding mode.
The feeding mode has the following problems that as the pipe clamping device used for clamping the pipe fitting cannot be pushed into the feeding hole of the pipe cutting mechanism, the final residual material of each raw pipe fitting can be long, the length of the residual material is at least the sum of the clamping length of the pipe clamping device and the length of the feeding hole, the waste is quite high, and the raw material utilization rate is not high.
Disclosure of Invention
In view of the above, the present invention aims to provide a pipe axial feeding mechanism which is beneficial to improving the utilization rate of raw materials.
The invention adopts the technical proposal for solving the technical problems that:
the utility model provides a pipe fitting axial feeding mechanism, includes frame, push rod, can drive the drive arrangement of push rod back and forth movement for the frame, the biggest radial dimension of push rod is less than or equal to the outside diameter of pipe fitting, the front end of push rod has the plug that can insert in the internal diameter of pipe fitting, form the step that can with the terminal surface butt of pipe fitting between the lateral wall of the rear end of plug and push rod.
In a preferred scheme of the invention, the push rod is a round rod, the plug is a conical rod with gradually increased diameter from front to back, and the outer side wall of the rear end of the plug is attached to the inner side wall of the pipe fitting.
In a preferred scheme of the invention, the base is movably provided with a mounting seat, the push rod is movably mounted on the mounting seat, and the driving device comprises a first push tube driver capable of driving the mounting seat to move forwards and backwards relative to the base and a second push tube driver capable of driving the push rod to move forwards and backwards relative to the mounting seat.
In a preferred scheme of the invention, a sliding seat is slidably arranged on the mounting seat, a supporting frame is fixedly arranged on the mounting seat, the rear part of the push rod is fixedly arranged on the sliding seat, the front part of the push rod is slidably matched with the supporting frame, and the second push tube driver is in transmission connection with the sliding seat to drive the push rod to move forwards and backwards relative to the mounting seat.
In a preferred scheme of the invention, the first push tube driver is a motor, a cylinder or an oil cylinder, and the second push tube driver is a motor, a cylinder or an oil cylinder.
In a preferred embodiment of the present invention, the support frame is provided with a linear bearing, and the support frame is slidably matched with the push rod through the linear bearing.
In a preferred embodiment of the invention, the mounting base is provided with a pipe clamping device capable of clamping a pipe fitting, and the pipe clamping device is positioned in front of the pipe fitting.
In a preferred scheme of the invention, the pipe clamping device comprises a left clamping block, a right clamping block positioned on the right side of the left clamping block, a first pipe clamping driver capable of driving the left clamping block to move left and right, and a second pipe clamping driver capable of driving the right clamping block to move left and right, wherein a first clamping groove is formed in the right side surface of the left clamping block, a second clamping groove corresponding to the first clamping groove is formed in the left side surface of the right clamping block, and when the left clamping block and the right clamping block are folded, the pipe fitting is clamped through the first clamping groove and the second clamping groove.
In a preferred embodiment of the present invention, the second push tube driver is capable of driving the push rod forward through a space between the first clamping groove and the second clamping groove when the left clamping block and the right clamping block are released.
In a preferred scheme of the invention, the left clamping block or the right clamping block is provided with a positioning guide pin arranged along the left-right direction, and the right clamping block or the left clamping block is provided with a guide hole matched with the positioning guide pin.
In a preferred scheme of the invention, a sliding seat which can be driven by the driving device to move back and forth relative to the machine seat is movably arranged on the machine seat, a push rod mounting plate is fixed on the sliding seat, the push rod is a hollow rod, the rear part of the push rod is fixed with the push rod mounting plate, the front end of the plug is provided with at least 2 expansion slots, the front ends of the expansion slots are open, the rear ends are closed, an elastic sheet is formed between two adjacent expansion slots, a core rod is penetrated in the push rod, the front end of the core rod is provided with an expansion head, the core rod is connected with an expansion driver which can drive the core rod to move back and forth relative to the push rod, and the inner side wall of the elastic sheet is pushed to expand the plug when the expansion head moves back and forth.
In a preferred embodiment of the present invention, a tapered surface for pushing the elastic sheet is provided at the rear portion of the outer sidewall of the expansion head, and the diameter of the tapered surface gradually decreases from front to rear.
The beneficial effects of the invention are as follows: after the plug at the front end of the push rod is inserted into the pipe fitting, the pipe fitting can be pushed forward through the push rod to be fed, when the rest part of the pipe fitting is short, the push rod can be pushed into a feeding hole of the pipe cutting mechanism together with the pipe fitting, and after the last part of the pipe fitting is cut off by the pipe cutting mechanism, the push rod can also push out the last rest material from the front side of the pipe cutting mechanism. Compared with the prior art, the method can reduce the amount of the residual materials as much as possible, improves the utilization rate of the materials, and is also beneficial to ejecting the final residual materials from the pipe cutting mechanism.
Drawings
FIG. 1 is a perspective view of embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of the fitting structure of the push rod and the pipe in the embodiment 1 of the present invention;
FIG. 3 is a schematic view showing a partial structure of a push rod in embodiment 1 of the present invention;
FIG. 4 is a schematic diagram of the connection structure of the left and right clamp blocks;
FIG. 5 is a schematic view showing the installation structure of a push rod in embodiment 2 of the present invention;
fig. 6 is a schematic diagram of a fitting structure of the expansion head and the plug in embodiment 2 of the present invention.
Detailed Description
The technical scheme of the present invention will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear …) in the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the description of "preferred," "less preferred," and the like, herein is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "preferred", "less preferred" may include at least one such feature, either explicitly or implicitly.
Referring to fig. 1 to 6, the present invention proposes an axial feeding mechanism for pipe fittings, comprising a base 1, a push rod 41, and a driving device capable of driving the push rod 41 to move back and forth relative to the base 1, wherein the maximum radial dimension of the push rod 41 is smaller than or equal to the outer diameter of the pipe fitting 32, the front end of the push rod 41 is provided with a plug 411 capable of being inserted into the inner diameter of the pipe fitting 32, a part or all of the outer side wall of the plug 411 is attached to, i.e. is close to or attached to, the inner side wall of the pipe fitting 32, and a step 412 capable of being abutted to the end face of the pipe fitting 32 is formed between the rear end of the plug 411 and the outer side wall of the push rod 41.
The tube 32 is typically a copper tube, and has an outer diameter of 8mm, 9mm, 10mm, 11mm, etc., and the tube 32 having an outer diameter of 10mm is exemplified, and the corresponding push rod 41 may have a diameter of 10mm, 9.9mm, 9.8mm, etc. With such a design, the method of pushing the tube 32 to the tube cutting mechanism for tube cutting is: firstly, the plug 411 at the front end of the push rod 41 is inserted into the pipe fitting 32, the rear end of the pipe fitting 32 is supported, other parts of the pipe fitting 32 are supported in V-shaped or U-shaped grooves, the front end of the pipe fitting 32 is aligned with the feeding hole of the pipe cutting mechanism, then the pipe fitting 32 is pushed forward through the push rod 41, the front end of the pipe fitting 32 is inserted into the feeding hole of the pipe cutting mechanism, the pipe cutting mechanism can cut the pipe fitting 32 a little bit, when the rest of the pipe fitting 32 is short, the push rod 41 can push the pipe fitting 32 into the feeding hole of the pipe cutting mechanism together, and after the pipe cutting mechanism cuts the last part of the pipe fitting 32, the push rod 41 can push the last rest out of the front side of the pipe cutting mechanism. The pipe cutting mechanism can cut the pipe fitting by ring cutting and then stretch breaking, or by ring cutting and then beating. Compared with the prior art, the method can reduce the amount of the residual materials as much as possible, improves the utilization rate of the materials, and is also beneficial to ejecting the final residual materials from the pipe cutting mechanism.
The push rod 41 may be a round rod, or may be a square rod, a hexagonal rod, or a rod of other shapes, with a round rod being preferred. When the push rod 41 is a round rod, the maximum radial dimension of the push rod 41 is the outer diameter of the push rod 41, and when the push rod 41 is a square rod, the maximum radial dimension of the push rod 41 is the diagonal of the cross section of the push rod 41.
In a preferred embodiment of the present invention, the plug 411 is a tapered rod with a gradually increasing diameter from front to rear, the difference between the diameter of the rear end of the plug 411 and the inner diameter of the tube 32 is-0.2 mm to 0.1mm, and only the rear end portion of the outer side wall of the plug 411 is fitted to the inner side wall of the tube 32 after the plug 411 is inserted into the tube 32.
Example 1
Fig. 1 to 4 show an embodiment 1 of the present invention, in which a mounting seat 4 is movably provided on a base 1, a push rod 41 is movably mounted on the mounting seat 4, and a driving device includes a first push tube driver 31 capable of driving the mounting seat 4 to move forward and backward relative to the base 1, and a second push tube driver 42 capable of driving the push rod 41 to move forward and backward relative to the mounting seat 4. The sliding seat 43 is slidably mounted on the mounting seat 4, the supporting frame 44 is fixedly arranged on the mounting seat 4, the rear portion of the push rod 41 is fixed with the sliding seat 43, the front portion of the push rod 41 is slidably matched with the supporting frame 44, and the second push tube driver 42 is in transmission connection with the sliding seat 43 to drive the push rod 41 to move forwards and backwards relative to the mounting seat 4.
Specifically, a linear bearing 45 is provided on the support frame 44, and the support frame 44 is slidably engaged with the push rod 41 through the linear bearing 45.
The first push tube driver 31 is a motor, a cylinder or an oil cylinder, and the second push tube driver 42 is a motor, a cylinder or an oil cylinder. When the first push tube driver 31 and the second push tube driver 42 use motors, a screw pair or a rack-and-pinion pair is used in combination to drive the slider 43 and the push rod 41 to move back and forth together.
Further, the mounting base 4 is provided with a pipe clamping device capable of clamping the pipe fitting 32, and the pipe clamping device is positioned in front of the pipe fitting 32. Specifically, the pipe clamping device comprises a left clamping block 81, a right clamping block 82 positioned on the right side of the left clamping block 81, a first pipe clamping driver 83 capable of driving the left clamping block 81 to move left and right, and a second pipe clamping driver 84 capable of driving the right clamping block 82 to move left and right, wherein a first clamping groove 811 is formed in the right side surface of the left clamping block 81, a second clamping groove 821 corresponding to the first clamping groove 811 is formed in the left side surface of the right clamping block 82, and when the left clamping block 81 and the right clamping block 82 are folded, the pipe fitting 32 is clamped through the first clamping groove 811 and the second clamping groove 821.
When the pipe cutting is started, the rear end of the pipe fitting 32 is far away from the pipe cutting mechanism, the pipe fitting 32 can be clamped by adopting the pipe clamping device, then the pipe fitting is pushed forward by the installation seat 4 together with the pipe clamping device and the push rod 41, when the pipe clamping device is close to the pipe cutting mechanism, the installation seat 4 stops, then the left clamping block 81 and the right clamping block 82 are loosened, then the push rod 41 and the pipe fitting 32 are continuously pushed forward by the second pipe pushing driver 42, and the push rod 41 passes through the space between the first clamping groove 811 and the second clamping groove 821 forward until the pipe fitting 32 is cut.
Preferably, the first clamping groove 811 and the second clamping groove 821 are semicircular grooves, and the first clamping groove 811 and the second clamping groove 821 together form a circular hole when the left clamping block 81 and the right clamping block 82 are folded.
The first and second crimp drivers 83 and 84 may be cylinders, motors or cylinders, with the cylinders being optimal.
In order to avoid dislocation of the left clamping block 81 and the right clamping block 82, a positioning guide pin 85 arranged along the left-right direction is arranged on the left clamping block 81 or the right clamping block 82, and a guide hole 86 matched with the positioning guide pin 85 is arranged on the right clamping block 82 or the left clamping block 81.
In order to improve the motion smoothness of each action part, a first guide rail capable of guiding the installation seat 4 is arranged on the machine base 1, and a sliding block matched with the first guide rail is arranged on the installation seat 4; the mounting seat 4 is provided with a second guide rail for guiding the sliding seat 43; the mounting seat 4 is provided with a third guide rail for guiding the left clamping block 81 and the right clamping block 82, and the left clamping block 81 and the right clamping block 82 are respectively provided with a sliding block matched with the third guide rail.
This embodiment is suitable for pushing the tube forward.
Example 2
In this embodiment, a sliding seat 43 capable of being driven by a driving device to move back and forth relative to the base 1 is movably disposed on the base 1, a push rod mounting plate 21 is fixed on the sliding seat 43, the push rod 41 is a hollow rod, the rear portion of the push rod 41 is fixed with the push rod mounting plate 21, at least 2 expansion slots 413, such as 3, 4, 5 and 6 expansion slots 413 are disposed at the front end of the plug 411, and all expansion slots 413 are disposed along the axial direction. The front end of the expansion groove 413 is opened, the rear end is closed, a spring piece 414 is formed between any two adjacent expansion grooves 413, a core rod 5 is arranged in the push rod 41 in a penetrating mode, an expansion head 51 is arranged at the front end of the core rod 5, and the core rod 5 is connected with an expansion driver 6 capable of driving the expansion driver to move forwards and backwards relative to the push rod 41. The expansion driver 6 may be a power device such as a cylinder, an oil cylinder, or a motor, and pushes the inner side wall of the elastic sheet 414 to expand the plug 411 when the expansion head 51 moves back and forth.
The outer side wall of the expansion head 51 is provided with a conical surface 511 for pushing against the elastic sheet 414, and the diameter of the conical surface 511 may be gradually reduced from front to back, or may be gradually increased from front to back. Taking the scheme that the diameter of the conical surface 511 gradually decreases from front to back as an example, when the expansion head 51 moves backward, the elastic sheet 414 is pushed to expand the plug 411, and at this time, the plug 411 can clamp the pipe 32, and the pipe 32 can be pulled to move forward or backward by the push rod 41. When the expansion head 51 moves forward, the elastic piece 414 returns to the original shape, and at this time, the elastic piece on the plug 41 no longer clamps the inner wall of the pipe fitting 32, and the pipe fitting 32 can be pushed forward by the push rod 41, or the plug 411 can be pulled out from the pipe fitting 32.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (10)

1. The pipe fitting axial feeding mechanism is characterized by comprising a machine base (1), a push rod (41) and a driving device capable of driving the push rod (41) to move forwards and backwards relative to the machine base (1), wherein the maximum radial dimension of the push rod (41) is smaller than or equal to the outer diameter of a pipe fitting (32), the front end of the push rod (41) is provided with a plug (411) capable of being inserted into the inner diameter of the pipe fitting (32), and a step (412) capable of being abutted with the end face of the pipe fitting (32) is formed between the rear end of the plug (411) and the outer side wall of the push rod (41);
the method for pushing the pipe fitting (32) to the pipe cutting mechanism for cutting the pipe comprises the following steps: firstly, a plug (411) at the front end of a push rod (41) is inserted into a pipe fitting (32), the rear end of the pipe fitting (32) is supported, other parts of the pipe fitting (32) are supported in a V-shaped or U-shaped trough, the front end of the pipe fitting (32) is aligned with a feeding hole of a pipe cutting mechanism, then the pipe fitting (32) is pushed forward through the push rod (41), the front end of the pipe fitting (32) is inserted into the feeding hole of the pipe cutting mechanism, the pipe cutting mechanism can cut the pipe fitting (32) slightly, when the rest part of the pipe fitting (32) is short, the push rod (41) can push the rest part of the pipe fitting (32) into the feeding hole of the pipe cutting mechanism together, and after the last part of the pipe fitting (32) is cut by the pipe cutting mechanism, the push rod (41) ejects the last rest material from the front side of the pipe cutting mechanism.
2. The pipe axial feeding mechanism according to claim 1, wherein the push rod (41) is a round rod, the plug (411) is a conical rod with gradually increased diameter from front to back, and the outer side wall of the rear end of the plug (411) is attached to the inner side wall of the pipe (32).
3. A pipe fitting axial feeding mechanism according to claim 1, characterized in that the base (1) is movably provided with a mounting seat (4), the push rod (41) is movably mounted on the mounting seat (4), and the driving device comprises a first push pipe driver (31) capable of driving the mounting seat (4) to move forwards and backwards relative to the base (1) and a second push pipe driver (42) capable of driving the push rod (41) to move forwards and backwards relative to the mounting seat (4).
4. A pipe fitting axial feeding mechanism according to claim 3, wherein a sliding seat (43) is slidably mounted on the mounting seat (4), a supporting frame (44) is fixedly arranged on the mounting seat (4), the rear portion of the push rod (41) is fixed with the sliding seat (43), the front portion of the push rod (41) is slidably matched with the supporting frame (44), and the second push tube driver (42) is in transmission connection with the sliding seat (43) to drive the push rod (41) to move back and forth relative to the mounting seat (4).
5. A pipe axial feed mechanism according to claim 3, characterized in that the mounting base (4) is provided with a pipe clamping device capable of clamping a pipe (32), the pipe clamping device being located in front of the pipe (32).
6. The pipe fitting axial feeding mechanism according to claim 5, wherein the pipe clamping device comprises a left clamping block (81), a right clamping block (82) positioned on the right side of the left clamping block (81), a first pipe clamping driver (83) capable of driving the left clamping block (81) to move left and right, and a second pipe clamping driver (84) capable of driving the right clamping block (82) to move left and right, a first clamping groove (811) is formed in the right side surface of the left clamping block (81), a second clamping groove (821) corresponding to the first clamping groove (811) is formed in the left side surface of the right clamping block (82), and the pipe fitting (32) is clamped through the first clamping groove (811) and the second clamping groove (821) when the left clamping block (81) and the right clamping block (82) are folded.
7. A pipe axial feed mechanism according to claim 6, wherein the second push tube driver (42) is adapted to drive the push rod (41) forward through the space between the first clamping groove (811) and the second clamping groove (821) when the left clamping block (81) and the right clamping block (82) are released.
8. A pipe axial feeding mechanism according to claim 7, wherein a positioning guide pin (85) arranged along the left-right direction is arranged on the left clamping block (81) or the right clamping block (82), and a guide hole (86) matched with the positioning guide pin (85) is arranged on the right clamping block (82) or the left clamping block (81).
9. A pipe fitting axial feeding mechanism according to claim 1, characterized in that a sliding seat (43) capable of being driven by the driving device to move back and forth relative to the base (1) is movably arranged on the base (1), a push rod mounting plate (21) is fixed on the sliding seat (43), the push rod (41) is a hollow rod, the rear part of the push rod (41) is fixed with the push rod mounting plate (21), at least 2 expansion slots (413) are arranged at the front end of the plug (411), the front end of the expansion slots (413) is opened, the rear end is closed, a spring piece (414) is formed between two adjacent expansion slots (413), a core rod (5) is penetrated in the push rod (41), the front end of the core rod (5) is provided with an expansion head (51), the core rod (5) is connected with an expansion driver (6) capable of driving the expansion head (51) to move back and forth relative to the push rod (41), and the inner side wall of the spring piece (414) is pushed to expand when the expansion head (51) moves back and forth so as to open the plug (411).
10. A pipe axial feeding mechanism according to claim 9, wherein a conical surface (511) for pushing against the elastic sheet (414) is provided at the rear part of the outer side wall of the expansion head (51), and the diameter of the conical surface (511) gradually decreases from front to back.
CN202310615390.2A 2023-05-26 2023-05-26 Pipe axial feeding mechanism Pending CN116673539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310615390.2A CN116673539A (en) 2023-05-26 2023-05-26 Pipe axial feeding mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310615390.2A CN116673539A (en) 2023-05-26 2023-05-26 Pipe axial feeding mechanism

Publications (1)

Publication Number Publication Date
CN116673539A true CN116673539A (en) 2023-09-01

Family

ID=87790163

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310615390.2A Pending CN116673539A (en) 2023-05-26 2023-05-26 Pipe axial feeding mechanism

Country Status (1)

Country Link
CN (1) CN116673539A (en)

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