CN104493285B - Expansion bolt sleeve cut-off machine - Google Patents
Expansion bolt sleeve cut-off machine Download PDFInfo
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- CN104493285B CN104493285B CN201410808227.9A CN201410808227A CN104493285B CN 104493285 B CN104493285 B CN 104493285B CN 201410808227 A CN201410808227 A CN 201410808227A CN 104493285 B CN104493285 B CN 104493285B
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Abstract
The invention discloses an expansion bolt sleeve cut-off machine. The expansion bolt sleeve cut-off machine is mainly composed of a frame, a motor, a gearbox driven by the motor, a sleeve cut-off device, a feeding device and a sizing device. The frame is a rectangular rigid support welded by use of profile steels; during machining, a raw material is enabled to move towards the sizing device under the combined action of the feeding device and a feeding hold-down device; after the feeding process of the raw material is completed, the highest point of an untightening cam on a timing cam shaft is upward and the feeding hold-down device is lifted up by the untightening cam; meanwhile, a pipe cutting control cam enables the cut-off tool of the sleeve cut-off device to move towards a steel pipe and complete the cut-off action; in the process that the cut steel pipe slides out of the machine via a sleeve discharging sliding chute, the pipe cutting control cam controls the cut-off tool to be lifted up and then returned, and the untightening cam enables the feeding hold-down device to return to complete the cut-off action. The expansion bolt sleeve cut-off machine is simple in overall machine structure, low in production cost, convenient to operate and repair, and capable of meeting the industrial, universal and standardized production requirements.
Description
Technical field
The present invention relates to a kind of metal pipe material cuts off equipment, be a kind of expansion bolt expansion sleeve production process in, will
Elongated raw material metal pipe automatic gauging cuts into the equipment of expansion sleeve.
Background technology
At present, in the Length-fixing cutting of the expansion sleeve production process middle sleeve of expansion bolt, some employing original methods, with
Manpower cuts off by hand, this method not only low production efficiency, poor product quality, and percent defective is high, and cost of labor is high, Gong Renlao
Fatigue resistance is big, and particularly current human resources are nervous, in the case of recruitment famine, are more not suitable with the need of modern production
Will；Although have is also adopted by mechanization cutting, the mechanized equipment being adopted mostly is existing miscellaneous equipment or instrument transformation
Simple machine afterwards, production efficiency is still very low, and these equipment are not special equipments, and sleeve pipe incision burr is big, its product
Quality is uneven, is far not suitable with the demand of industrialization, generalization, standardized production.
Content of the invention
The invention aims to overcoming the deficiencies in the prior art, provide one kind can cut automatic gauging, production efficiency
Height, and product quality is stable, adapts to industrialization, generalization, a kind of expansion bolt sleeve tube cut-off machine of standardized production.
The technical measures that the present invention solves that its technical problem adopted are:
A kind of expansion bolt sleeve tube cut-off machine, mainly by frame, motor, the change speed gear box by motor-driven, transmission belt,
Drive, sprocket wheel, chain composition.In the bottom of frame front end, motor and the change speed gear box by motor-driven are installed, in machine
The top of frame front end is provided with casing pipe cutter, described casing pipe cutter by the hinged fixed seat of shearing device, be arranged on
Cutter shaft in hinged fixed seat, install on cutter shaft fixing disc amputation knife composition, hinged fixed seat be the shape of a saddle, hinge
The middle part of connection fixed seat is hingedly fixed in frame by longitudinal hinged fixing axle, and cutter shaft is longitudinally mounted to hinged fixing axle
In the hinged fixed seat of side, it is provided with the bottom of the hinged fixed seat of hinged fixing axle opposite side and is hingedly fixed in frame front
The amputation knife control lever of lower end, and the bottom of the hinged fixed seat of this side is provided with returning pull-spring, one end of returning pull-spring with
Hinged fixed seat is connected, and the other end of returning pull-spring is fastened in frame, in the frame at casing pipe cutter rear portion
On pay-off is installed, described pay-off is by being transversely mounted fixing timing camshaft and power transmission shaft from front to back successively
Composition, timing camshaft described here refers to that the releasing cam installed on camshaft and Pipe Cutting control cam can be exactly
(timing) drives the device being linked with it or mechanism's work, and that is, releasing cam lifts feeding hold down gag, meanwhile cuts
Management and control cam controls and amputation knife move to steel pipe and complete cut-out action, and both replace the time occurring accurately and reliably, and one
Individual while complete a action set in advance, another has to enter into b action set in advance.In timing camshaft and transmission
Drawing-inroller and drive sprocket are mounted on axle, corresponding before and after two drive sprockets and two drawing-inrollers, drawing-inroller is arranged
There is spill annular groove, the vertical tangent plane weight of the vertical tangent plane at spill annular groove center on former and later two drawing-inrollers and cutter shaft longitudinal center
Close, the annular groove bottom of the anterior spill annular groove of drawing-inroller is less than the foot of cutter shaft front end, is provided with timing camshaft
Releasing cam and Pipe Cutting control cam, and the other end of amputation knife control lever is positioned at the lower section of Pipe Cutting control cam and right with it
Should, the amputation knife control lever between Pipe Cutting control cam and amputation knife control lever is provided with and Pipe Cutting controls cam rolling
The roller of dynamic contact, releasing cam and Pipe Cutting control the peak of two cams of cam mutually vertical with the line of its centre of gyration
Directly, feeding pressing device is provided with frame, described feeding pressing device is by compressor arm, feeding contact roller, feeding compression
Wheel wheel shaft, compressor arm jointed shaft, compressor arm drop-down extension spring composition, hinged fix one the top of timing camshaft and power transmission shaft is each
Individual compressor arm, one end of each compressor arm and the hinged fixation of frame, are provided with compressor arm between the other end of compressor arm and frame
Drop-down extension spring, respectively installs a feeding contact roller, two feeding contact rollers are respectively positioned in front and back two on former and later two compressor arms
The top of individual drawing-inroller, two feeding contact rollers are arranged on former and later two compressor arms by respective feeding contact roller wheel shaft respectively
On, wheel shaft drive sprocket is mounted on the wheel shaft of two feeding contact rollers, power transmission shaft is provided with and wheel shaft driving-chain
Take turns the wheel shaft drive sprocket matching, wheel shaft drive sprocket and wheel shaft drive sprocket form driving-chain by driving chain, front
The bottom of the compressor arm in portion is also equipped with the roller being in rolling contact with releasing cam, the top of frame rear end be fixed with longitudinally and
Horizontally disposed feed pipe, the centrage of feed pipe can be passed through by the spill on top on two drawing-inrollers from back to front and with cutter shaft
Centerline parallel, in the bottom of cutter shaft and be located at and be provided with length measuring device, in scale in the anterior frame of the front portion of drawing-inroller
Amputation knife are mounted with the cutter shaft at device rear portion, change speed gear box has two power output shafts, a power output shaft passes through to pass
Cutter shaft drive composition driving-chain on dynamic band, drive and cutter shaft, another power output shaft of change speed gear box passes through sprocket wheel, chain
Bar forms driving-chain with drive sprocket and compression axis drive sprocket.
The present invention solve technical measures that its technical problem adopted it may also is that
Casing pipe cutter of the present invention, pay-off, length measuring device and feeding pressing device are the left side in frame
The expansion bolt casing pipe cutter of the symmetrically arranged two groups of multiple operations in right both sides, the expansion bolt sleeve pipe of two groups of multiple operations
The public timing camshaft of shearing device and a power transmission shaft, the drive sprocket that timing camshaft and power transmission shaft are installed is located at
In the middle of the expansion bolt casing pipe cutter of two groups of multiple operations.
The present invention is fixed with sleeve pipe cut-out bracket in the frame of amputation knife bottom, and sleeve pipe cuts off top and the feeding of bracket
The bottom of pipe inner tubal wall, in same horizontal plane, is provided with the feed pipe being fixed in frame between former and later two drawing-inrollers
Bracket.
The present invention is provided with the up-downgoing of amputation knife control lever in the hinged fixed seat on amputation knife control lever top
Journey regulating bolt, this regulating bolt spinning in the tapped through hole of hinged fixed seat, the lower end of upper and lower stroke regulating bolt with cut
The upper end of breaking control lever is corresponding, and sleeve pipe cuts off the rigid pedestal that bracket is provided with longitudinal fluting for top, cuts in sleeve pipe
On disconnected bracket, vertical is provided with a plurality of amputation knife and makes a concession groove, and front and back position in frame for the length measuring device is adjustable, under amputation knife
Sleeve pipe downslide chute is provided with the frame in portion.
Present configuration feature and operation principle are as follows:
The rectangle rigid support that the frame of the present invention is welded into for shaped steel, the job step in processing is: 1, enters
Expect raw material steel pipe elongated first along the inner chamber access arrangement from the front to the back of feed pipe, in pay-off and charging compression dress
Under the collective effect put, raw material steel pipe moves to length measuring device, when raw material steel pipe front end face withstands the rear end face of length measuring device
Complete fill process, not only front and back position can adjust length measuring device here, reach the sleeve pipe producing different length, and
Length measuring device be one can around the disk of its longitudinal fixing axle rotation, the front end face of disk be length measuring device rear end face and
This end face is vertical guide；
2nd, cut off during material is cut off bracket and reaches length measuring device by sleeve pipe, putting on timing camshaft
The peak of loose cam upwards, releasing cam by feed hold down gag lift, meanwhile Pipe Cutting control cam peak to
Front and rotate gradually downward, control cam to pass through the leverage of amputation knife control lever rotating Pipe Cutting simultaneously gradually downward,
The hinged fixed seat of shearing device of casing pipe cutter is made to be lifted up in the pedestal of same one end with amputation knife control lever, another
End be provided with cutter shaft pedestal move downward drive cutting knife also move downward, amputation knife move to steel pipe and complete cut-out action；3、
Reset at cut steel pipe and skid off in device procedures along going out sleeve pipe downslide chute, Pipe Cutting controls cam to control amputation knife to lift
And reset, releasing cam will feed hold down gag and reset, and complete cut-out action.The power drive of whole work process is by electronic
The change speed gear box (1) of machine driving, transmission belt, drive, sprocket wheel, drive sprocket, driving chain are realized.
The invention has the beneficial effects as follows: anodontia high-speed steel cutter blades are installed and cut off steel pipe, the sleeve pipe impulse- free robustness produced,
Production efficiency is high, low cost, conforming product rate more than 98%, and complete machine structure is simple, and operation is easy to maintenance.Adapt to industrialization, lead to
Demand with change, standardized production.
Brief description
Fig. 1 is the structural representation (axle side schematic diagram) of the present invention；
Fig. 2 is the timing camshaft of the present invention and installs cam, the structural representation after sprocket wheel thereon.
Specific embodiment
Shown in Fig. 1-Fig. 2, a kind of expansion bolt sleeve tube cut-off machine, mainly by frame, motor, by motor-driven change
Fast case 1, transmission belt 7, drive, sprocket wheel, chain composition.The rectangle rigid support that frame is welded into for shaped steel, before frame
The bottom at end is provided with motor and the change speed gear box 1 by motor-driven, is provided with sleeve pipe cut-out dress on the top of frame front end
Put 5, cutter shaft that described casing pipe cutter 5 by the hinged fixed seat of shearing device, is arranged in hinged fixed seat, on cutter shaft
The amputation knife composition of fixing disc is installed, hinged fixed seat is the shape of a saddle, and longitudinal hinge is passed through at the middle part of hinged fixed seat
Connect fixing axle to be hingedly fixed in frame, cutter shaft is longitudinally mounted in the hinged fixed seat of hinged fixing axle side, hinged solid
The bottom of the hinged fixed seat of dead axle opposite side is provided with the amputation knife control lever 6 being hingedly fixed in frame front lower end, and
The bottom of the hinged fixed seat of this side is provided with returning pull-spring, and one end of returning pull-spring is connected with hinged fixed seat, return
The other end of extension spring is fastened in frame, is provided with pay-off 12 in the frame at casing pipe cutter 5 rear portion, described
Pay-off 12 by being transversely mounted fixing timing camshaft 10 from front to back successively and power transmission shaft forms, in timing camshaft
With drawing-inroller 14 and drive sprocket 17 be mounted on power transmission shaft, corresponding before and after two drive sprockets 17 and two drawing-inrollers 14,
Spill annular groove is provided with drawing-inroller 14, the vertical tangent plane at spill annular groove center on former and later two drawing-inrollers 14 is indulged with cutter shaft
Overlap to the vertical tangent plane at center, the annular groove bottom of the anterior spill annular groove of drawing-inroller 14 is less than the foot of cutter shaft front end,
Releasing cam 15 is provided with timing camshaft and Pipe Cutting controls cam 16, the other end of amputation knife control lever 6 is located to be cut
The lower section of management and control cam 16 and corresponding, controls the amputation knife control between cam 16 and amputation knife control lever 6 in Pipe Cutting
The roller being in rolling contact with Pipe Cutting control cam 16 is provided with lever 6 processed, releasing cam 15 controls 16 two, cam with Pipe Cutting
The peak of cam is mutually perpendicular to the line of its centre of gyration, is provided with feeding pressing device 11 in frame, and described send
Material hold down gag 11 is by compressor arm, feeding contact roller, feeding contact roller wheel shaft, compressor arm jointed shaft, compressor arm drop-down extension spring group
Become, the top of timing camshaft 10 and power transmission shaft each hinged fix a compressor arm, one end of each compressor arm is cut with scissors with frame
Connect fixation, be provided with the drop-down extension spring of compressor arm between the other end of compressor arm and frame, former and later two compressor arms are respectively installed
One feeding contact roller, two feeding contact rollers are located at the top of former and later two drawing-inrollers 14 respectively, and two feeding contact rollers divide
It is not arranged on former and later two compressor arms by respective feeding contact roller wheel shaft, the wheel shaft of two feeding contact rollers is all pacified
Equipped with wheel shaft drive sprocket, the wheel shaft drive sprocket being matched with wheel shaft drive sprocket is provided with power transmission shaft, takes turns through-drive
Sprocket wheel and wheel shaft drive sprocket form driving-chain by driving chain, the bottom of fore compressor arm be also equipped with loosen convex
The roller that wheel 15 is in rolling contact, is fixed with longitudinal and horizontally disposed feed pipe 13 on the top of frame rear end, feed pipe 13
Centrage can be passed through and the centerline parallel with cutter shaft by the spill on top on two drawing-inrollers 14 from back to front, in the bottom of cutter shaft
And it is provided with length measuring device 4 in the anterior frame of the front portion of drawing-inroller 14, the cutter shaft at length measuring device 4 rear portion is installed
It is fixed with amputation knife, change speed gear box 1 has two power output shafts, a power output shaft passes through on transmission belt 7, drive and cutter shaft
Cutter shaft drive composition driving-chain, another power output shaft of change speed gear box 1 pass through sprocket wheel, chain and drive sprocket 17 and
Compression axis drive sprocket forms driving-chain.Casing pipe cutter 5 described in the present embodiment, pay-off 12, length measuring device 4 and send
Material hold down gag 11 is the expansion bolt casing pipe cutter in the symmetrically arranged two groups of multiple operations in the left and right sides of frame, two
The public timing camshaft 10 of expansion bolt casing pipe cutter of group multiple operation and a power transmission shaft, timing camshaft 10
It is located in the middle of the expansion bolt casing pipe cutter of two groups of multiple operations with the drive sprocket 17 installed on power transmission shaft.The present embodiment
Sleeve pipe cut-out bracket 3 is fixed with the frame of amputation knife bottom, sleeve pipe cuts off top and feed pipe 13 inner tubal wall of bracket 3
Bottom, in same horizontal plane, is provided with the feed pipe bracket being fixed in frame between former and later two drawing-inrollers 14.This
Embodiment is provided with the stroke adjustment up and down of amputation knife control lever 6 in the hinged fixed seat on amputation knife control lever 6 top
Bolt, upper and lower stroke regulating bolt spinning in the tapped through hole of hinged fixed seat, the lower end of upper and lower stroke regulating bolt with cut
The upper end of breaking control lever 6 is corresponding, and sleeve pipe cuts off the rigid pedestal that bracket 3 is provided with longitudinal fluting for top, in sleeve pipe
On cut-out bracket 3, vertical is provided with a plurality of amputation knife and makes a concession groove, and front and back position in frame for the length measuring device 4 is adjustable, in cut-out
Sleeve pipe downslide chute 2 is provided with the frame of knife bottom.
Claims (4)
1. a kind of expansion bolt sleeve tube cut-off machine, mainly by frame, motor, the change speed gear box (1) by motor-driven, transmission belt
(7), drive, sprocket wheel, chain composition it is characterised in that: in the bottom of frame front end, motor is installed and is driven by motor
Dynamic change speed gear box (1), is provided with casing pipe cutter (5) on the top of frame front end, and described casing pipe cutter (5) is by cutting
The hinged fixed seat of disconnected device, the cutter shaft being arranged in hinged fixed seat, the amputation knife group that fixing disc is installed on cutter shaft
Become, hinged fixed seat is the shape of a saddle, the middle part of hinged fixed seat is hingedly fixed in frame by longitudinal hinged fixing axle, knife
Axle is longitudinally mounted in the hinged fixed seat of hinged fixing axle side, in the bottom of the hinged fixed seat of hinged fixing axle opposite side
It is provided with the amputation knife control lever (6) being hingedly fixed in frame front lower end, and the bottom setting of the hinged fixed seat of this side
There is returning pull-spring, one end of returning pull-spring is connected with hinged fixed seat, and the other end of returning pull-spring is fastened on frame
On, pay-off (12) is provided with the frame at casing pipe cutter (5) rear portion, described pay-off (12) is by from forward direction
It is transversely mounted fixing timing camshaft (10) and power transmission shaft composition afterwards successively, timing camshaft and power transmission shaft are mounted on
Corresponding, in drawing-inroller before and after drawing-inroller (14) and drive sprocket (17), two drive sprockets (17) and two drawing-inrollers (14)
(14) it is provided with spill annular groove on, in the vertical tangent plane at spill annular groove center on former and later two drawing-inrollers (14) and cutter shaft longitudinal direction
The vertical tangent plane of the heart overlaps, and the annular groove bottom of the anterior spill annular groove of drawing-inroller (14) is less than the foot of cutter shaft front end,
Releasing cam (15) is provided with timing camshaft and Pipe Cutting controls cam (16), the other end position of amputation knife control lever (6)
Control the cam lower section of (16) and corresponding in Pipe Cutting, control between cam (16) and amputation knife control lever (6) in Pipe Cutting
Amputation knife control lever (6) on be provided with and control cam (16) roller that is in rolling contact with Pipe Cutting, releasing cam (15) with cut
(16) two peaks of cam of management and control cam are mutually perpendicular to the line of its centre of gyration, are provided with feeding pressure in frame
Tight device (11), described feeding pressing device (11) is by compressor arm, feeding contact roller, feeding contact roller wheel shaft, compressor arm hinge
The drop-down extension spring of spindle, compressor arm form, the top of timing camshaft (10) and power transmission shaft each hinged fix a compressor arm, often
One end of individual compressor arm and the hinged fixation of frame, are provided with the drop-down extension spring of compressor arm between the other end of compressor arm and frame,
One feeding contact roller is respectively installed on former and later two compressor arms, two feeding contact rollers are located at former and later two drawing-inrollers (14) respectively
Top, two feeding contact rollers are arranged on former and later two compressor arms by respective feeding contact roller wheel shaft, respectively two
It is mounted on wheel shaft drive sprocket on the wheel shaft of individual feeding contact roller, power transmission shaft is provided with and matches with wheel shaft drive sprocket
Wheel shaft drive sprocket, wheel shaft drive sprocket and wheel shaft drive sprocket form driving-chain, fore compression by driving chain
The bottom of bar is also equipped with the roller being in rolling contact with releasing cam (15), is fixed with longitudinal direction and level on the top of frame rear end
The feed pipe (13) of setting, the centrage of feed pipe (13) can be passed through simultaneously by the spill on the upper top of two drawing-inrollers (14) from back to front
With the centerline parallel of cutter shaft, in the bottom of cutter shaft and be located at and be provided with scale in the anterior frame of front portion of drawing-inroller (14)
Device (4), is mounted with amputation knife on the cutter shaft at length measuring device (4) rear portion, and change speed gear box (1) has two power output shafts,
A piece power output shaft forms driving-chain by the cutter shaft drive on transmission belt (7), drive and cutter shaft, change speed gear box (1)
Another power output shaft passes through sprocket wheel, chain and two drive sprockets (17) and forms driving-chain.
2. a kind of expansion bolt sleeve tube cut-off machine according to claim 1 it is characterised in that: described casing pipe cutter
(5), length measuring device (4) and feeding pressing device (11) are swollen in the symmetrically arranged two groups of multiple operations in the left and right sides of frame
Swollen bolt sleeve shearing device, the public timing camshaft (10) of expansion bolt casing pipe cutter of two groups of multiple operations and
A piece power transmission shaft, the drive sprocket (17) that timing camshaft (10) and power transmission shaft are installed is located at the expanding screw of two groups of multiple operations
In the middle of bolt casing pipe cutter.
3. a kind of expansion bolt sleeve tube cut-off machine according to claim 1 and 2 it is characterised in that: in amputation knife bottom
Sleeve pipe cut-out bracket (3) is fixed with frame, sleeve pipe cuts off the top of bracket (3) with the bottom of feed pipe (13) inner tubal wall same
In one horizontal plane, it is provided with the feed pipe bracket being fixed in frame between former and later two drawing-inrollers (14).
4. a kind of expansion bolt sleeve tube cut-off machine according to claim 3 it is characterised in that；In amputation knife control lever
(6) the stroke regulating bolt up and down of amputation knife control lever (6), upper and lower stroke adjustment spiral shell are provided with the hinged fixed seat on top
, in the tapped through hole of hinged fixed seat, the lower end of upper and lower stroke regulating bolt is upper with amputation knife control lever (6) for bolt spinning
End is corresponding, and sleeve pipe cuts off the rigid pedestal that bracket (3) is provided with longitudinal fluting for top, in the upper lead of sleeve pipe cut-out bracket (3)
Hang down and be provided with a plurality of amputation knife yielding groove, front and back position in frame for the length measuring device (4) is adjustable, in the frame of amputation knife bottom
On sleeve pipe downslide chute (2) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410808227.9A CN104493285B (en) | 2014-12-15 | 2014-12-15 | Expansion bolt sleeve cut-off machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410808227.9A CN104493285B (en) | 2014-12-15 | 2014-12-15 | Expansion bolt sleeve cut-off machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104493285A CN104493285A (en) | 2015-04-08 |
| CN104493285B true CN104493285B (en) | 2017-02-01 |
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ID=52934785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410808227.9A Active CN104493285B (en) | 2014-12-15 | 2014-12-15 | Expansion bolt sleeve cut-off machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104493285B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735708B (en) * | 2017-01-19 | 2022-08-23 | 东莞市神州视觉科技有限公司 | Tin bar granulator |
| CN107363327A (en) * | 2017-07-22 | 2017-11-21 | 佛山市正略信息科技有限公司 | Steel plate continuous cutting device is used in a kind of electric oven production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268137A (en) * | 1965-05-03 | 1966-08-23 | Calumet & Hecla | Method and apparatus for cutting tubes |
| US4257293A (en) * | 1979-07-16 | 1981-03-24 | National Manufacturing Company Inc. | Machine for trimming the edges of metal containers |
| CN2892343Y (en) * | 2005-03-02 | 2007-04-25 | 霍天明 | Expanding pipe opening cutting machine |
| CN201102263Y (en) * | 2007-05-16 | 2008-08-20 | 任献国 | Automatic grooving machine for plug bolt expansion tube |
| CN204339010U (en) * | 2014-12-15 | 2015-05-20 | 王士刚 | A kind of expansion bolt sleeve tube cut-off machine |
-
2014
- 2014-12-15 CN CN201410808227.9A patent/CN104493285B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268137A (en) * | 1965-05-03 | 1966-08-23 | Calumet & Hecla | Method and apparatus for cutting tubes |
| US4257293A (en) * | 1979-07-16 | 1981-03-24 | National Manufacturing Company Inc. | Machine for trimming the edges of metal containers |
| CN2892343Y (en) * | 2005-03-02 | 2007-04-25 | 霍天明 | Expanding pipe opening cutting machine |
| CN201102263Y (en) * | 2007-05-16 | 2008-08-20 | 任献国 | Automatic grooving machine for plug bolt expansion tube |
| CN204339010U (en) * | 2014-12-15 | 2015-05-20 | 王士刚 | A kind of expansion bolt sleeve tube cut-off machine |
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| Publication number | Publication date |
|---|---|
| CN104493285A (en) | 2015-04-08 |
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Effective date of registration: 20190517 Address after: 057150 Zhouying Village, Dongyangzhuang Township, Yongnian District, Handan City, Hebei Province Patentee after: Handan Huaou Machinery Manufacturing Co., Ltd. Address before: 057150 No. 21, Zhouying Village, Dongyangzhuang Township, Yongnian County, Hebei Province Patentee before: Wang Shigang |