CN2696739Y - Inner rolling device for moulding bamboo joint shape of metal pipe - Google Patents
Inner rolling device for moulding bamboo joint shape of metal pipe Download PDFInfo
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- CN2696739Y CN2696739Y CN 200420026750 CN200420026750U CN2696739Y CN 2696739 Y CN2696739 Y CN 2696739Y CN 200420026750 CN200420026750 CN 200420026750 CN 200420026750 U CN200420026750 U CN 200420026750U CN 2696739 Y CN2696739 Y CN 2696739Y
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Abstract
The utility model relates to an inner rolling device for molding bamboo joints of metal pipes, which is characterized in that a set of concave moulds imitating bamboo joint shapes are tightly attached to the outer wall of a pipe, and a group of convex rolling wheels imitating bamboo joint shapes are uniformly distributed along the circumference of the inner wall of the pipe. A cam shaft is arranged in the central position in the pipe. When the cam shaft rotates forward, the arc shape of the cam surface is utilized firstly to push a roller chute to move outward to contact the inner wall of the pipe, and then the rolling wheels are forcibly compelled to roll on the inner wall of the pipe, so that the pipe wall is bulged outward and deformed until the pipe wall and the concave mould are matched completely. When the cam shaft rotates backward, the cam surface give place to roller shafts and the rolling wheels to return in a radial direction. The utility model has the advantages that the method of inner rolling with outer profiling is used, no cutting flaw is left on the pipe wall during in the molding process, the machining quality is high, the profile is clear, the roller imitate the bamboo joint shape vividly, the design is ingenious, the machining equipment is simple, the cost is low, a long and thin pipe can be processed in the mode of imitating the bamboo joint shape, the minimal pipe diameter is 20 mm, and the maximum length is more than 6 m, which is an innovation in the field.
Description
Technical field
The utility model relates to a kind of processing unit (plant) of laemodipodiform metal tube, is specifically related to a kind of device that metal straight pipe is processed into ring shape hollow tube by interior roll forming.Described metal tube mainly comprises tubing such as aluminum pipe, copper pipe and steel pipe, especially at aluminum pipe.
Background technology
Return Piao and return really modern's a kind of new pursuit.Bamboo with its very dial, delicate, the simple and tasteful favor that is subjected to personage of all times deeply, people like adopting bamboo to work out various adornments or daily necessities, showing its culture and mastery, bamboo fence is exactly wherein a kind of.But because bursting of natural resources is weary, cuts down bamboo in a large number and not only can destroy the ecological balance, and bring harm for people's living environment.
Along with the development of social progress and technology, at home and abroad in the decoration market, the industrial products of imitative bamboo occur in a large number at present, and wherein the most frequently used is the imitative bamboo products of plastics.This goods are popular in Japan and Southeast Asia one band country.But can bring severe contamination to environment owing to handle the waste and old product of plastics, so in recent years, many countries begin these class plastic products are limited.Thereby the laemodipodiform aluminum pipe has just become the better selection of substituted for plastic bamboo trunk.
In the prior art, the aluminium alloy hollow pipe is processed into the laemodipodiform aluminum pipe two kinds of methods usually, and first kind is the hydraulic expanding type method, promptly utilize the hydraulic buckling principle, to the pipe inward turning hydraulic pressure that adds high pressure, cooperate with model outside the pipe by the extruding of expanding, make tube wall deformation well-thought-out plan nodular.This method seal request height, therefore the production equipment complexity is seldom used in the practice.Second kind is the rubber type method that expands, and is about to block rubber and inserts in the aluminum pipe, and the extruding by two ends makes the block rubber lateral expansion cooperate with pipe model outward, forces tube wall deformation well-thought-out plan nodular.This method must provide enough extruding forces, otherwise distortion may be not in place, and in addition, block rubber is too thick, can cause lateral expansion power deficiency, too thin difficult maintenance accurate positioning.Above-mentioned two kinds of methods all are to utilize interior expansion principle to cooperate with the pipe external model by diffusion to make tube wall deformation well-thought-out plan nodular.But the shortcoming of these class methods is: 1, the imitative ring difficulty of processing for the big aluminium alloy hollow tubing of minor diameter slenderness ratio is bigger; 2, the appearance profile of imitative ring is of low quality, and especially to imitate the fidelity of ring when outer lug is higher relatively poor when ring; 3, equipment and mold complex structure, cost is higher.
The purpose of this utility model provides a kind of interior roll forming device of new metal tube laemodipodiform.This device is not only an economy but also suitable machinery processing apparatus, is particularly suitable for processing the big metal hollow tubular product of minor diameter slenderness ratio.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of interior roll forming device of metal tube laemodipodiform comprises:
The matrix mould of one secondary imitative laemodipodiform, this matrix mould has a cylindrical inner mold face, and the matrix die cavity of imitative laemodipodiform is set around circumferencial direction on the barrel of interior die face;
An interior roll extrusion plug, this plug mainly by roller, roller shaft, roll frame, camshaft constitutes, rolling frame is a hollow stent, uniform at least three rollers of the circumferential outer rim of its support body, each roller is by a roller shaft rotating support, the roller shaft two ends are located in and are rolled in the chute set on the frame, and roller is arranged in and rolls the circumferential cavity of frame, and the wheel rim of roller is provided with imitative ring convex tendon; Camshaft is made of cam and axis body two parts, and wherein, cam places in the cavity that rolls frame, and cam pin pair roller axle is provided with cambered surface or inclined-plane, and this cambered surface or inclined-plane act on the roller shaft two ends simultaneously; Cambered surface or inclined-plane relatively rotate the vector size and Orientation at center, and the size of vector increases when satisfying forward rotation, the variation that reduces when oppositely changeing.
Related content in the technique scheme is explained as follows:
1, in the such scheme, two imitative ring convex tendons are arranged on the wheel rim of described roller, wherein, in two imitative ring convex tendons, one big, and another is little, and this design can make the imitative ring of roll extrusion more true to nature.
2,, the matrix mould is designed to be put together by two half modules up and down for the ease of operation.
3, in the such scheme, described to roll chute set on the frame be skewed slot, because the direction and the roller shaft glide direction of roll extrusion are more reasonable, can make the roll extrusion better effects if of roller like this.Certainly, chute adopts radially that straight trough also is fine.
4, in the such scheme, can enough process longer metal tube in order to make the roll extrusion plug, can add a driving shaft at the cam axle head, this driving shaft is fixedlyed connected with the axis body of camshaft.
5, in the such scheme, rotate the roll extrusion plug and can adopt manual and motor-driven dual mode, wherein, can motor be set at the driving shaft other end when motor-driven, this motor is connected with driving shaft through decelerator.
The utility model operation principle is: with metal straight pipe, as aluminum pipe, be enclosed within (this moment, roller should be in the indentation state) on the interior roll extrusion plug, the matrix mould of one secondary imitative laemodipodiform is installed at outside the aluminum pipe, the location compresses, make aluminum pipe, interior roll extrusion plug and matrix mould relative fixed, wherein, interior roll extrusion plug and roller align with the imitative ring matrix chamber on the matrix mould inner mould face.Forward rotation camshaft, cambered surface on the cam outer rim or inclined-plane promote each roller shaft simultaneously and move (roller shaft drives roller and progressively moved to a point by the b point, sees shown in Figure 3) laterally along chute, drive each roller and expand outwardly.When roller is expanded to a certain degree, contact with the aluminum pipe inwall, then camshaft drives roller shaft and rolls the revolution of frame forward, and roller touches the aluminum pipe inwall and promptly begins roll extrusion, makes tube wall outwards heave distortion, until fitting like a glove with the matrix mould.After finishing roll extrusion, the backward rotation camshaft, cam face is made way for roller shaft, (roller shaft drives roller and is resetted to the b point by a point in the space that the related roller of roller shaft is had radially return, see shown in Figure 3), can extract interior roll extrusion plug out this moment, finishes a ring moulding.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, the utility model is with interior rolling structure and outer pattern textural association, and tube wall does not have any cutting scar in the forming process, the crudy height, and appearance profile is clear, the fidelity height of imitative laemodipodiform.Can in process, not scratch and cut pipe material inner wall, make the tube wall attenuation or because of existing smear metal to make ring heave distortion.
2, the utility model is skillfully constructed, and process equipment is simple, and cost is low, and is safe and reliable.
3, the utility model not only can be processed into short tube laemodipodiform tubing, the more important thing is and can imitate laemodipodiform processing to elongated tubular.This is a kind of innovation in the art and breaks through.Calculate according to theory, can process minimum pipe is 20mm, and maximum length surpasses the above aluminium tube of 6m.
4, the utility model also is fit to the higher annular laemodipodiform structure of processing projection.
Description of drawings
Accompanying drawing 1 is a roll forming schematic diagram in the utility model;
Accompanying drawing 2 is a rolling device structure cutaway view in the utility model;
Accompanying drawing 3 is roll extrusion and an oblique chute schematic diagram in the utility model;
Accompanying drawing 4 is the imitative laemodipodiform aluminum pipe outline drawing of the utility model roll forming.
In the above accompanying drawing: 1, roller; 2, roller shaft; 3, camshaft; 4, upper mold section; 5, female die; 6, roll frame; 7, end cap; 8, aluminum pipe; 9, cavity; 10, screw; 11, flange; 12, cambered surface; 13, chute.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: referring to accompanying drawing 1～shown in Figure 3, a kind of interior roll forming device of aluminum pipe laemodipodiform, be made up of the matrix mould of a secondary imitative laemodipodiform, interior roll extrusion plug and driving mechanism.Wherein: the matrix mould is put together by upper mold section 4 and female die 5, and female die 5 is as the fixing mould of piecing together, and upper mold section 4 is as the movable mould of piecing together.Constitute a cylindrical inner mold face after upper mold section 4 and female die 5 amalgamations, the matrix die cavity of imitative laemodipodiform is set around circumferencial direction on the barrel of interior die face.
Interior roll extrusion plug by roller 1, roller shaft 2, roll frame 6, camshaft 3 constitutes.Rolling frame 6 is a hollow stent, is ring support in this example, uniform three rollers 1 of the circumferential outer rim of its support body.Each roller 1 is by roller shaft 2 rotating supports, roller shaft 2 two ends are located in and roll in the chute set on the frame 6 13 that (chute 13 can be oblique chute, sees shown in Figure 3ly, also can be straight trough radially, see Fig. 1, this example adopts oblique chute), roller 1 is arranged in and rolls the circumferential cavity 9 of frame 6, and the wheel rim of roller 1 is provided with two imitative ring convex tendons, wherein, one big slightly, and one slightly little, makes the fidelity of imitative laemodipodiform higher.Camshaft 3 is made of cam and axis body two parts, and wherein, cam places in the cavity that rolls frame 6, and cam pin pair roller axle 2 is provided with cambered surface 12, and this cambered surface 12 acts on roller shaft 2 two ends simultaneously.Cambered surface 12 relatively rotates the vector size and Orientation at center, and the size of vector increases when satisfying forward rotation, the variation that reduces when oppositely changeing.Roll frame 6 one ends with screw 10 mounting flanges 11, one section threaded axle is arranged on the flange 11, this axle is connected with bolster; The other end is fixing with end cap 7, and end cap 7 central authorities establish the hole, and the axis body in the camshaft 3 passes from this hole, to connect driving mechanism.
Driving mechanism is made up of driving shaft, decelerator and motor, and the axis body of this driving shaft and camshaft 3 is by being threaded, and the other end of driving shaft is connected with motor by decelerator.
Add man-hour, the pipe outer wall is provided with a secondary imitative laemodipodiform around circumferencial direction matrix mould is close at the processed position in hollow aluminum pipe 8 outsides.Interior roll extrusion plug is fixed on the hollow aluminum pipe 8 inboard corresponding positions, in camshaft 3 forward rotation processes, utilize cam face to relatively rotate the variation of the size and Orientation of center vector, promoting each roller shaft 2 earlier outwards moves radially, each roller 1 is contacted with inside pipe wall, drive roller shaft 2 revolution then, force roller 1 roll extrusion on inside pipe wall, make tube wall outwards heave distortion, until fitting like a glove with the matrix mould; In the backward rotation process, cam face is made way for roller shaft 2, makes roller shaft 2 related rollers 1 that the space of radially returning be arranged.
Claims (7)
1, a kind of interior roll forming device of metal tube laemodipodiform is characterized in that comprising:
The matrix mould of one secondary imitative laemodipodiform, this matrix mould has a cylindrical inner mold face, and the matrix die cavity of imitative laemodipodiform is set around circumferencial direction on the barrel of interior die face;
An interior roll extrusion plug, this plug mainly by roller, roller shaft, roll frame, camshaft constitutes, rolling frame is a hollow stent, uniform at least three rollers of the circumferential outer rim of its support body, each roller is by a roller shaft rotating support, the roller shaft two ends are located in and are rolled in the chute set on the frame, and roller is arranged in and rolls the circumferential cavity of frame, and the wheel rim of roller is provided with imitative ring convex tendon; Camshaft is made of cam and axis body two parts, and wherein, cam places in the cavity that rolls frame, and cam pin pair roller axle is provided with cambered surface or inclined-plane, and this cambered surface or inclined-plane act on the roller shaft two ends simultaneously; Cambered surface or inclined-plane relatively rotate the vector size and Orientation at center, and the size of vector increases when satisfying forward rotation, the variation that reduces when oppositely changeing.
2, interior roll forming device according to claim 1 is characterized in that: two imitative ring convex tendons are arranged on the wheel rim of described roller.
3, interior roll forming device according to claim 2 is characterized in that: in described two imitative ring convex tendons, one big, and another is little.
4, roll forming device in according to claim 1 is characterized in that: described matrix mould is put together by two half modules up and down.
5, roll forming device in according to claim 1 is characterized in that: described to roll chute set on the frame be skewed slot.
6, interior roll forming device according to claim 1, it is characterized in that: also comprise a driving shaft, this driving shaft is fixedlyed connected with the axis body of camshaft.
7, interior roll forming device according to claim 6, it is characterized in that: this driving shaft is connected with motor with decelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026750 CN2696739Y (en) | 2004-04-26 | 2004-04-26 | Inner rolling device for moulding bamboo joint shape of metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026750 CN2696739Y (en) | 2004-04-26 | 2004-04-26 | Inner rolling device for moulding bamboo joint shape of metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2696739Y true CN2696739Y (en) | 2005-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420026750 Expired - Lifetime CN2696739Y (en) | 2004-04-26 | 2004-04-26 | Inner rolling device for moulding bamboo joint shape of metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2696739Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240699A (en) * | 2010-05-16 | 2011-11-16 | 李荣华 | Method and device for forming bamboo-imitative metal tube |
| CN108526342A (en) * | 2017-03-05 | 2018-09-14 | 曹炳鑫 | A kind of full-automatic rotary beading machine |
| CN110480258A (en) * | 2019-07-18 | 2019-11-22 | 安徽润盈建材有限公司 | A kind of metal bamboo continuous mould molding expanding and shaping technique |
| CN111571139A (en) * | 2020-05-23 | 2020-08-25 | 山东泰通精锻科技有限公司 | Production process of half-shaft sleeve |
-
2004
- 2004-04-26 CN CN 200420026750 patent/CN2696739Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240699A (en) * | 2010-05-16 | 2011-11-16 | 李荣华 | Method and device for forming bamboo-imitative metal tube |
| CN108526342A (en) * | 2017-03-05 | 2018-09-14 | 曹炳鑫 | A kind of full-automatic rotary beading machine |
| CN110480258A (en) * | 2019-07-18 | 2019-11-22 | 安徽润盈建材有限公司 | A kind of metal bamboo continuous mould molding expanding and shaping technique |
| CN111571139A (en) * | 2020-05-23 | 2020-08-25 | 山东泰通精锻科技有限公司 | Production process of half-shaft sleeve |
| CN111571139B (en) * | 2020-05-23 | 2021-10-08 | 山东泰通精锻科技有限公司 | Production process of half-shaft sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040426 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |