CN107186117B - Continuous bending forming equipment for annular objects - Google Patents
Continuous bending forming equipment for annular objects Download PDFInfo
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- CN107186117B CN107186117B CN201710463578.4A CN201710463578A CN107186117B CN 107186117 B CN107186117 B CN 107186117B CN 201710463578 A CN201710463578 A CN 201710463578A CN 107186117 B CN107186117 B CN 107186117B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/60—Continuous furnaces for strip or wire with induction heating
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- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Metal Rolling (AREA)
Abstract
The invention provides a continuous bending and forming device for a ring-shaped object, which comprises a feeding mechanism, and a shaping mechanism, an annealing mechanism, a cutting mechanism and a rolling and forming mechanism which are sequentially arranged along the feeding direction; the feeding mechanism is used for conveying the strip-shaped raw materials, the shaping mechanism is used for continuously processing the cross sections of the continuously passing strip-shaped raw materials into the shape and the size required by a finished product, the annealing mechanism is used for continuously annealing the strip-shaped raw materials to a proper state capable of being processed by roll forming, the cutting mechanism is used for cutting the strip-shaped raw materials according to a required angle, and the roll forming mechanism is used for enabling the strip-shaped raw materials to be formed into a ring-shaped finished product by roll forming; the rolling forming mechanism is provided with a material ejecting mechanism; the material ejecting mechanism is used for conveying the end part of the strip-shaped raw material into the roll forming space of the roll forming mechanism. The invention solves the problems of low processing precision, low processing efficiency and high material waste rate of other methods under the conventional condition.
Description
Technical Field
The invention relates to the field of machining equipment, in particular to machining equipment for a ring part, which is particularly suitable for continuous bending forming machining of a lock ring for a blind rivet.
Background
The mechanically locked bulge type self-plugging rivet is a high-end single-side mounting fastener used in the fields of aerospace and the like, an important part in a locking mechanism is a locking ring, the locking ring is subjected to plastic deformation in the riveting process, and after the riveting is finished, the mechanically locked bulge type self-plugging rivet can play an important role in locking a core rod and preventing the core rod from loosening. The part is in the form of a thin-walled ring with angled slots 15 as shown in figure 1. The existing machining process of the part is groove milling or linear cutting machining after the numerical turning of the round bars, the material removing machining process of the numerical turning causes great waste of raw materials, the cutter is frequently abraded in the machining process, the consistency of the product size is poor, and the efficiency is extremely low because the numerical turning is single-piece machining.
the problems of low machining efficiency, high machining cost and poor product size consistency of the lock ring number turning machine are solved, and the following aspects are considered when the lock ring machining equipment is designed: 1. plastic deformation processing without material removal is adopted; 2. the rapid continuous automatic production can be realized; 3. the consistency of the processing precision and the size of the product can be ensured.
Disclosure of Invention
In view of the above, the invention aims to provide a device for continuously bending and forming a ring-shaped object, which has very high processing precision and automation efficiency and solves the problems of low processing precision, low processing efficiency and high material waste rate of other methods in the conventional situation.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
A continuous bending and forming device for a ring-shaped object comprises a feeding mechanism, and a shaping mechanism, an annealing mechanism, a cutting mechanism and a rolling and forming mechanism which are sequentially arranged along the feeding direction; the feeding mechanism is used for conveying the strip-shaped raw materials, the shaping mechanism is used for continuously processing the cross sections of the continuously passing strip-shaped raw materials into the shape and the size required by a finished product, the annealing mechanism is used for continuously annealing the strip-shaped raw materials to a proper state capable of being processed by roll forming, the cutting mechanism is used for cutting the strip-shaped raw materials according to a required angle, and the roll forming mechanism is used for enabling the strip-shaped raw materials to be formed into a ring-shaped finished product by roll forming; the rolling forming mechanism is provided with a material ejecting mechanism; the material ejecting mechanism is used for conveying the end part of the strip-shaped raw material into the roll forming space of the roll forming mechanism.
The feeding mechanism comprises a feeding roller which is arranged behind the shaping mechanism and the cutting mechanism along the feeding direction; the feed rollers may be arranged individually or preferably in groups. The feeding rollers respectively arranged behind the shaping mechanism and the cutting mechanism can be a plurality of or a plurality of groups.
the feeding mechanism further comprises a power shaft arranged in front of the shaping mechanism along the feeding direction.
The shaping mechanism comprises an upper half die and a lower half die, and the upper half die and the lower half die can form a shaping channel with an inlet equal to or larger than the original cross section shape and size of the strip-shaped raw material and an outlet equal to the required cross section shape and size of a finished product. Further, the upper die and/or the lower die can move up and down. Preferably, the upper die and/or the lower die are/is connected with a hydraulic mechanism to realize the functions of up-down movement and positioning, and the upper die and/or the lower die are/is connected with a hydraulic ejector rod of the hydraulic mechanism.
Wherein the annealing mechanism comprises an induction annealing coil.
The cutting mechanism comprises a cutting die for allowing strip-shaped raw materials to pass through and be positioned, and a cutting knife is arranged at the discharge port of the cutting die. For the ring-shaped object (locking ring) with the inclined groove, the discharge hole of the cutting die and the cutting line of the cutting knife form a certain included angle with the moving direction of the strip-shaped raw material.
The rolling forming mechanism comprises a first rolling round die and a plurality of second rolling round dies, the first rolling round die can move relative to the second rolling round die, an arc-shaped clearance space can be formed between the first rolling round die and the second rolling round die, and the arc-shaped clearance space can coincide with one section of arc on a finished product. The number of the second rolling circular dies is preferably 2-5, most preferably 3, and the included angle formed by the connecting line of the axes of the two second rolling circular dies which are farthest away and the axis of the first rolling circular die is preferably 45-180 degrees, more preferably 90-140 degrees, and still more preferably 120 degrees.
And a section of arc-shaped guide baffle is coaxially arranged on the periphery of the first rolling circular die. Preferably, the central angle of the arc on which the guide baffle is located is preferably 90 ° to 140 °, and more preferably 120 °. And a space for the ejection part of the ejection mechanism to enter and exit is formed between the guide baffle and the second rolling round die at the tail end.
The first rolling circular die is further coaxially provided with a material returning sleeve capable of reciprocating along an axis, the material returning sleeve is at least partially overlapped with the cross section, perpendicular to the axial direction, of a finished product, the material returning sleeve and the guide baffle plate can be relatively fixed or integrally formed, and preferably, the material returning sleeve is independently arranged in an annular space (rolling forming space) between the guide baffle plate and the first rolling circular die.
Wherein, the liftout mechanism includes the liftout pole.
Furthermore, the equipment provided by the invention is also provided with a length control mechanism for controlling the cutting mechanism to cut the strip-shaped raw material at the required length position. The length control mechanism can be an existing conventional moving length measuring device such as an infrared distance measuring device, and can also preferably comprise a material baffle plate and a sensor arranged on the material baffle plate, wherein the material baffle plate and the sensor thereof are arranged behind the rolling forming mechanism along the feeding direction and are positioned on a material conveying route of the strip-shaped raw materials. The striker plate and the ejector rod can be jointly fixed on a sliding machine tool seat.
Compared with the prior art, the invention has the following advantages: the continuous bending forming machine can simultaneously realize continuous reforming and annealing processing of strip-shaped raw materials and finally realize continuous bending forming processing of a ring-shaped object (lock ring), has high processing precision, good size consistency and extremely high processing efficiency, and solves the problems of low processing efficiency, poor size consistency and high material waste rate of the conventional multi-car cutting.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
Fig. 1 is a schematic view of the structure of the locking ring.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Fig. 3 is a schematic view of the operation of the roll forming mechanism.
Fig. 4 is a schematic view of the operation of the material returning sleeve part.
Description of reference numerals:
1-feeding roller; 2-a power shaft; 3-a half-mould; 4-hydraulic ejector rod; 5-induction annealing coil; 6-cutting a material die; 7-a cutter; 8-a first rolling round die; 9-a second rolling round die; 10-a guide baffle; 11-a material returning sleeve; 12-a lifter bar; 13-a striker plate; 14-a sliding machine base; 15 chute.
Detailed Description
The invention will be explained in detail below with reference to the drawings.
The structure of the invention is shown in figure 2, and comprises a feeding mechanism, and a shaping mechanism, an annealing mechanism, a cutting mechanism and a rolling forming mechanism which are sequentially arranged along the feeding direction; the feeding mechanism is used for conveying the strip-shaped raw materials, the shaping mechanism is used for continuously processing the cross sections of the continuously passing strip-shaped raw materials into the shape and the size required by a finished product, the annealing mechanism is used for continuously annealing the strip-shaped raw materials to a proper state capable of being processed by roll forming, the cutting mechanism is used for cutting the strip-shaped raw materials according to a required angle, and the roll forming mechanism is used for enabling the strip-shaped raw materials to be formed into a ring-shaped finished product by roll forming; the rolling forming mechanism is provided with a material ejecting mechanism; the material ejecting mechanism is used for conveying the end part of the strip-shaped raw material into the roll forming space of the roll forming mechanism. The roll forming space is a reasonable space which is occupied by a deformation process of a target ring of a finished product formed by forming an irregular circular arc around a rolling shaft (such as an axis of a first rolling circular die 8) before and after a strip-shaped raw material is rolled, for example, the roll forming space may be an annular space between a guide baffle 10 and the first rolling circular die 8, and an arc-shaped clearance space between the first rolling circular die 8 and a second rolling circular die 9 is a part of the roll forming space.
As a preferred scheme, the feeding mechanism comprises a feeding roller 1 which is respectively arranged behind the shaping mechanism and the cutting mechanism along the feeding direction, and the feeding roller 1 can provide pushing force for conveying the strip-shaped raw materials; the feeding rollers 1 can be independently arranged or preferably arranged in groups, the grouped feeding rollers 1 can position the strip-shaped raw materials in a vertical clamping manner, the shaking of the strip in the feeding process is avoided, and the distance between the grouped feeding rollers 1 can be adjusted in a conventional manner according to the thickness of the strip-shaped raw materials (for example, the height of the feeding rollers above the strip is adjusted). The feeding rollers 1 respectively arranged behind the shaping mechanism and the cutting mechanism can be a plurality of or a plurality of groups.
As a preferred scheme, the feeding mechanism further comprises a power shaft 2 arranged in front of the shaping mechanism in the feeding direction, the power shaft 2 can wind the strip-shaped raw material corrected by the shaping mechanism on one hand, and can also feed the strip-shaped raw material by unwinding the strip-shaped raw material into subsequent mechanisms such as an annealing mechanism, a cutting mechanism, a rolling forming mechanism and the like on the other hand, the strip-shaped raw material can directly enter the next processing procedure (such as annealing) without passing through the power shaft 2 after being shaped by the shaping mechanism, or can preferably be wound by the power shaft 2 and then unwound to enter the next processing procedure, and in the process of winding by the power shaft 2, the power shaft 2 can provide a traction or dragging acting force for the strip-shaped raw material passing through the shaping mechanism, so that the feeding pressure of other parts in the feeding mechanism is reduced, and the feeding stability and reliability of the system are maintained, The requirement for simplifying the specification configuration of the feeding mechanism accessories plays an important role.
As a preferred scheme, the shaping mechanism comprises an upper half die 3 and a lower half die 3 (an upper die and a lower die respectively), the upper half die and the lower half die can form a shaping channel with an inlet equal to or larger than the original cross-sectional shape and size (such as a circle) of the strip-shaped raw material and an outlet equal to the required cross-sectional shape and size (such as a rectangle) of the finished product, and the strip-shaped raw material passes through the shaping channel and then reaches the required cross-sectional shape and size of the finished product through the extrusion effect of. Furthermore, the upper die and/or the lower die can move up and down, so that the purpose of adjusting the shape and the size of the cross section of the finished product is achieved by adjusting the size of the shaping channel, and the preparation requirements of finished products of different specifications are met. Preferably, the upper die and/or the lower die are connected with a hydraulic mechanism to realize the functions of up-down movement and positioning, the upper die and/or the lower die are connected with a hydraulic ejector rod 4 of the hydraulic mechanism, and the upper die and/or the lower die are locked by the hydraulic ejector rod 4 after moving to a target position.
preferably, the annealing means includes an induction annealing coil 5, and the strip-shaped raw material can be continuously annealed by a high-frequency induction heating effect. After the strip-shaped raw material is processed by the shaping mechanism, the hardness of the material is improved, partial stress residue also exists in the material, and the annealing mechanism can eliminate the residual stress and enable the hardness to reach the hardness required by roll forming.
Wherein, as an optimal scheme, the cutting mechanism is including supplying banding raw and other materials to pass through and the blank mould 6 of location, the discharge gate department of blank mould 6 is equipped with blank sword 7, blank sword 7 is through carrying out die-cut shearing to banding raw and other drive arrangement or under the effect of drive power, and banding raw and other materials can not take place offset when the blank mould 6 guarantees the blank, guarantees the cutting accuracy. For the ring-shaped object (locking ring) with the chute, the discharge hole of the cutting die 6 and the cutting line of the cutting knife 7 form a certain included angle with the moving direction of the strip-shaped raw material, so that the end face of the cut strip-shaped raw material is a wedge-shaped surface with a target angle, and the chute with a target size can be formed after roll forming.
As an optimal scheme, the roll forming mechanism includes a first roll forming circular mold 8 and a plurality of second roll forming circular molds 9, the first roll forming circular mold 8 can move relative to the second roll forming circular mold 9, an arc gap space can be formed between the first roll forming circular mold 8 and the second roll forming circular mold 9, the arc gap space can coincide with a section of arc on a finished product, a belt-shaped raw material enters the gap space under the driving of the first roll forming circular mold 8 and the second roll forming circular mold 9, and bears the extrusion deformation effect in the gap space, so as to form a target circular ring structure of the finished product. In order to ensure the rolling forming precision and the forming efficiency, the number of the second rolling circular dies 9 is preferably 2-5, most preferably 3, and the angle formed by the axes of the two second rolling circular dies 9 which are farthest away and the connecting line of the axes of the first rolling circular dies 8 is preferably 45-180 degrees, more preferably 90-140 degrees, and still more preferably 120 degrees.
As a preferable scheme, a section of arc-shaped guide baffle 10 is coaxially arranged on the periphery of the first circular rolling die 8, and is used for guiding bending deformation of the strip-shaped raw material in the rolling forming process, so that the strip-shaped raw material can smoothly enter a gap space between the first circular rolling die 8 and the second circular rolling die 9 for deformation. Preferably, the central angle of the arc on which the guiding baffle 10 is located is preferably 90 ° to 140 °, and more preferably 120 °. The guide baffle 10 and the endmost second rolling round die 9 are spaced apart from each other so that an ejection member (hereinafter, an ejection rod 12) of the ejection mechanism can enter and exit.
As a preferred scheme, the first rolling round die 8 is further coaxially provided with a material returning sleeve 11 capable of reciprocating along an axis, the material returning sleeve 11 is at least partially overlapped with a cross section, perpendicular to the axial direction, of a finished product, the finished product can fall off from the first rolling round die 8 under the pushing action of the material returning sleeve 11 after the finished product is formed, the material returning sleeve 11 can be relatively fixed to or integrally formed with the guide baffle 10 (during rolling, the material returning sleeve 11 is retreated to a proper position along the axis so that the guide baffle 10 can smoothly exert the guiding action, and the material returning sleeve 11 exerts the material returning action through a barrel of the material returning sleeve 11 after rolling), and preferably, the material returning sleeve 11 is independently arranged in an annular space between the guide baffle 10 and the first rolling round die 8.
Wherein, as a preferred scheme, the ejection mechanism comprises an ejection rod 12, and the ejection rod 12 can be contacted with the tail part of the strip-shaped raw material in the ejection process.
Further, the apparatus of the present invention is further provided with a length control mechanism for controlling the cutting mechanism to cut the strip-shaped raw material at a desired length position, and the length control mechanism can also be regarded as a part of the cutting mechanism. The length control mechanism can be an existing conventional moving length measuring device such as an infrared distance measuring device, and can also preferably comprise a material baffle plate 13 and a sensor (not shown, and can be a conventional sensor such as a pressure sensor or a trigger sensor) arranged on the material baffle plate 13, wherein the material baffle plate 13 and the sensor thereof are arranged behind the rolling forming mechanism along the feeding direction and are positioned on a material conveying route of the strip-shaped raw materials. When the strip-shaped raw materials move to the end part of the strip-shaped raw materials along the conveying route to be in contact with the material baffle 13 and the sensor thereof, the sensor can send out a sensing signal, and the sensor receives the sensing signal through the external control device to control the feeding mechanism to stop feeding, so that the cutting mechanism can cut the strip-shaped raw materials at a required position. Wherein, the striker plate 13 and the ejector rod 12 can be jointly fixed on a sliding machine tool seat 14.
A brief working process of the invention is as follows: one end of a strip-shaped raw material is firstly fed into a shaping channel in the shaping mechanism through a feeding roller 1 of the feeding mechanism, penetrates out of an outlet of the shaping channel, and is wound and fixed on a power shaft 2, so that sufficient traction or dragging force can be provided when the strip-shaped raw material rotates. Then adjusting the relative position of the upper die and/or the lower die through the hydraulic ejector rod 4 to enable the outlet end of the shaping channel to reach the required size, locking and fixing the hydraulic ejector rod 4, starting the feeding mechanism (a feeding roller 1 behind the shaping mechanism) and the power shaft 2 to enable the strip-shaped raw material to be continuously reformed into a strip material with the required cross section shape and size through the friction and extrusion effects of the shaping channel, continuously winding the reformed strip-shaped raw material on the power shaft 2, and stopping the machine after finishing. Before the next process is started, the previous section of unmodified strip-shaped raw material (if any) on the power shaft 2 is removed. The modified strip-shaped raw material sequentially passes through the annealing mechanism and the cutting mechanism until reaching the rolling forming mechanism (figure 3), and the first rolling round die 8 and the second rolling round die 9 are respectively positioned above and below the strip-shaped raw material at the initial position in the rolling forming mechanism. When the end of the strip-shaped raw material contacts the striker plate 13 and the sensor thereof, the feeding mechanism (the feeding roller 1 in front of the annealing mechanism) stops feeding, the first rolling circular die 8 moves downwards, the strip-shaped raw material is compressed on the second rolling circular die 9, the cutting knife 7 of the cutting mechanism cuts the strip-shaped raw material at the moment, the ejector rod 12 of the ejector mechanism moves simultaneously, one end of the bent strip-shaped raw material is ejected into the rolling forming space in the guide baffle plate 10, and then the first rolling circular die 8 and the second rolling circular die 9 start to rotate, so that the cut strip-shaped raw material is rolled and bent, and finally, the ring-shaped raw material is formed into a ring-shaped finished product. And then the first rolling round die 8 and the second rolling round die 9 stop rotating, the first rolling round die 8 returns to the initial position, the material returning sleeve 11 starts to act (figure 4), the processed finished product is pushed out of the first rolling round die 8 and is transferred into a finished product box, and the material returning sleeve 11 resets. Then the feeding mechanism (the feeding roller 1 in front of the annealing mechanism) continues feeding, and the strip raw material is continuously fed into the rolling forming mechanism to start the next processing cycle.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (10)
1. a continuous bending and forming device for a ring-shaped object comprises a feeding mechanism, and a shaping mechanism, an annealing mechanism, a cutting mechanism and a rolling and forming mechanism which are sequentially arranged along the feeding direction; the feeding mechanism is used for conveying the strip-shaped raw materials, the shaping mechanism is used for continuously processing the cross sections of the continuously passing strip-shaped raw materials into the shape and the size required by a finished product, the annealing mechanism is used for continuously annealing the strip-shaped raw materials to a proper state capable of being processed by roll forming, the cutting mechanism is used for cutting the strip-shaped raw materials according to a required angle, and the roll forming mechanism is used for enabling the strip-shaped raw materials to be formed into a ring-shaped finished product by roll forming; the rolling forming mechanism is provided with a material ejecting mechanism; the material ejecting mechanism is used for conveying the end part of the strip-shaped raw material into a roll forming space of the roll forming mechanism;
The feeding mechanism also comprises a power shaft which is arranged in front of the shaping mechanism along the feeding direction;
The annealing mechanism comprises an induction annealing coil, and the material ejecting mechanism comprises an ejecting rod;
The rolling forming mechanism comprises a first rolling round die and a plurality of second rolling round dies, the first rolling round die is also coaxially provided with a material returning sleeve capable of reciprocating along an axis, and the material returning sleeve is at least partially overlapped with the cross section, perpendicular to the axial direction, of a finished product;
The length control mechanism comprises a material baffle plate and a sensor arranged on the material baffle plate, the material baffle plate and the sensor are arranged behind the rolling forming mechanism along the feeding direction and are positioned on a material conveying route of the strip-shaped raw materials.
2. The apparatus according to claim 1, wherein the feeding mechanism includes feeding rollers disposed respectively behind the shaping mechanism and the cutting mechanism in a feeding direction.
3. the apparatus for continuous loop forming according to claim 1, wherein the shaping mechanism comprises an upper mold half and a lower mold half, which are capable of forming a shaping channel having an inlet equal to or larger than the original cross-sectional shape and size of the raw material in a band shape and an outlet equal to the desired cross-sectional shape and size of the final product.
4. The apparatus according to claim 1, wherein the cutting means includes a cutting die for passing and positioning the raw material in a belt shape, and a cutting blade is provided at a discharge port of the cutting die.
5. The apparatus according to claim 1, wherein the first circular rolling die is capable of moving relative to the second circular rolling die, an arc-shaped clearance space is formed between the first circular rolling die and the second circular rolling die, the arc-shaped clearance space is capable of coinciding with a section of arc on a finished product, the number of the second circular rolling dies is 2-5, and an included angle formed by connecting axes of two second circular rolling dies which are farthest away from each other with an axis of the first circular rolling die is 45-180 °.
6. The apparatus according to claim 5, wherein the number of the second rolling round dies is 3.
7. the apparatus for continuously bending and forming a ring according to claim 5, wherein the axes of the two second rolling dies which are farthest away form the connecting line of the axes of the first rolling dies at an angle of 90 ° to 140 °.
8. The apparatus for continuously bending a ring according to claim 7, wherein the axes of the two second round rolling dies farthest from each other are respectively at an angle of 120 ° with respect to a line connecting the axes of the first round rolling dies.
9. the continuous bending and forming device for the ring-shaped object according to claim 1, wherein a section of arc-shaped guide baffle is coaxially arranged on the periphery of the first circular rolling die, the central angle corresponding to the arc where the guide baffle is located is 90-140 degrees, and a space for the ejector rod of the ejector mechanism to enter and exit is formed between the guide baffle and the endmost second circular rolling die.
10. The apparatus according to claim 9, wherein the circular arc on which the guide fence is located has a central angle of 120 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463578.4A CN107186117B (en) | 2017-06-16 | 2017-06-16 | Continuous bending forming equipment for annular objects |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710463578.4A CN107186117B (en) | 2017-06-16 | 2017-06-16 | Continuous bending forming equipment for annular objects |
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| CN107186117A CN107186117A (en) | 2017-09-22 |
| CN107186117B true CN107186117B (en) | 2019-12-17 |
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| CN108838254B (en) * | 2018-06-15 | 2023-10-20 | 宁波市创捷自动化有限公司 | Automobile skylight guide rail end roll bending tool |
| CN110054012A (en) * | 2019-04-19 | 2019-07-26 | 昆山兴宝塑料制品有限公司 | A kind of coiled material shaping cutting machine |
| CN110654920B (en) * | 2019-09-27 | 2020-11-06 | 重庆红旗杰勋车轮有限公司 | Steel winding and conveying equipment |
| CN113798395B (en) * | 2020-06-11 | 2022-11-08 | 福立旺精密机电（中国）股份有限公司 | Manufacturing method of U-shaped part |
| CN118143520A (en) * | 2024-05-09 | 2024-06-07 | 山东一立动力科技股份有限公司 | Forming welding device for manufacturing combustion chamber of turbojet engine |
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| JP2003010937A (en) * | 2001-07-02 | 2003-01-15 | Nippon Piston Ring Co Ltd | Manufacturing apparatus for piston ring |
| CN201154374Y (en) * | 2007-11-15 | 2008-11-26 | 陈卓平 | Hole-punching and circle-rolling machine |
| CN202155448U (en) * | 2011-06-04 | 2012-03-07 | 王革 | Steel ring roll forming device |
| CN102397938B (en) * | 2011-09-10 | 2014-04-23 | 蚌埠银丰滤清器科技有限公司 | Cutting and reeling machine for protecting wire net of full-automatic filter |
| KR101298064B1 (en) * | 2013-04-26 | 2013-08-20 | 주식회사 이래시에스 | Apparatus for automatically producing ring-dusts for automobile |
| JP2016129890A (en) * | 2015-01-12 | 2016-07-21 | 株式会社タイガーサッシュ製作所 | Manufacturing method for ring-shaped member |
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| CN107186117A (en) | 2017-09-22 |
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