CN211386302U

CN211386302U - Multi-roller surrounding type high-precision seamless taper pipe forming roller die

Info

Publication number: CN211386302U
Application number: CN201922194681.0U
Authority: CN
Inventors: 周爱民
Original assignee: Hangzhou Chuntong New Material Technology Co ltd
Current assignee: Hangzhou Chuntong New Material Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-01
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a multiple roll centers on seamless taper pipe shaping roller mould of formula high precision, including a plurality of groups along waiting to process shaping module (1) that tubular product axis direction arranged in proper order, every group shaping module (1) all includes that three axis is radial around roller mould body (11) that distribute, roller mould body (11) are fixed on die carrier (2), be equipped with the shaping groove on roller mould body (11) circumference, form a whole circular shape die orifice of colding pressing behind the shaping groove cooperation of three roller mould body (11), and along with the synchronous revolution of three roller mould body (11), the die orifice diameter of colding pressing of formation increases gradually or reduces. The utility model has the advantages of can be used for processing the seamless taper pipe of the flexible seamless taper pipe of capillary of millimeter rank, make the seamless taper pipe of the flexible seamless taper pipe of capillary all satisfy the industrial production requirement on processing qualification rate and machining precision.

Description

Multi-roller surrounding type high-precision seamless taper pipe forming roller die

Technical Field

The utility model relates to a taper pipe shaping technical field, especially a seamless taper pipe shaping roller mould of multiple roll center on formula high precision.

Background

Petroleum, chemical industry, medical treatment, fire control, electric power, mechanical equipment, logistics equipment, shipbuilding, building, instruments and meters, hot-water heating household electrical appliances, fields such as military affairs all need use the taper pipe, because the taper pipe main raw materials uses the carbon steel to be given first place to, also can use stainless steel, various materials such as alloy steel obtain the taper pipe of different performance, the fashioned mode of traditional hot push can cause irreversible internal part substructure's change to the processing material, make the taper pipe that processing obtained lose the performance of material itself, therefore, to some service environment that require high to the material, cold-pressing shaping has become the mainstream of taper pipe processing.

For the cold press molding of the taper pipe, the extrusion type processing is gradually replaced by the rolling type processing because the advantages of adding pipes with various sizes, small pipe burst probability and the like in the processing process to become the mainstream of the modern taper pipe cold press molding, for the rolling processing, the design of the die is a big difficulty in the processing, in the patent application CN 110303064A applied and published by the department of China, the tapered pipe continuous cold press molding roller die is disclosed, the roller die comprises a pair of roller die bodies with the same structure and tangentially arranged excircle, an effective cold press area of a full-circle die opening is formed at a tangent point after the two roller die bodies are matched, and the diameter of the formed full-circle die opening is gradually increased or reduced along with the reverse synchronous rotation of the pair of roller die bodies.

The mold in the patent is mainly used for processing the taper pipe with larger size in practical application, but relates to more precise capillary flexible seamless taper pipes under specific requirements such as medical instruments, instruments and meters, the outer diameter of the capillary flexible seamless taper pipe is commonly 2.5-6.5mm, the mold in the patent cannot process the taper pipe with the millimeter grade, even if the mold is scaled in an equal proportion, the precision and the success rate of processing the taper pipe cannot meet the production requirements, and the processing cost of a single capillary flexible seamless taper pipe is very high.

Therefore, the existing taper pipe forming die cannot be well used for processing the capillary flexible seamless taper pipe at the millimeter level, the production requirements of the capillary flexible seamless taper pipe cannot be met no matter on the processing qualified rate and the processing precision, and a new high-precision seamless taper pipe forming roller die is urgently needed to meet the requirements of the market on the capillary flexible seamless taper pipe.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multiple roll centers on seamless taper pipe forming roller mould of formula high precision. The method has the advantages that the method can be used for processing the capillary flexible seamless taper pipe in millimeter level, and the capillary flexible seamless taper pipe can meet the requirements of industrial production in processing qualification rate and processing precision.

The technical scheme of the utility model: the utility model provides a multi-roll centers on seamless taper pipe shaping roller mould of formula high precision, include a plurality of groups along the shaping module of waiting to process tubular product axis direction and arranging in proper order, every group shaping module all includes that three axis is radial around the roller mould body that distributes, and the roller mould body is fixed on the die carrier, is equipped with the shaping groove on the roller mould body circumference, forms a whole circular shape cold pressing die orifice behind the shaping groove cooperation of three roller mould body, and along with the synchronous revolution of three roller mould body, the cold pressing die orifice diameter crescent or the reduction of formation.

In the multi-roller surrounding type high-precision seamless taper pipe forming roller die, in two adjacent forming modules in the taper pipe linear motion direction, the minimum cold pressing die orifice diameter of the front forming module is larger than that of the rear forming module and is smaller than that of the rear forming module.

In the foregoing multi-roller surrounding type high-precision seamless taper pipe forming roller die, the center of the roller die body is provided with the shaft hole, and the roller die body is mounted through the shaft.

In the multi-roller surrounding type high-precision seamless taper pipe forming roller die, the effective working length of the forming groove is 1/2-3/4 of the circumference of the forming groove.

In the seamless taper pipe shaping roller mould of multiple-roller surrounding type high precision, the die carrier includes a plurality of end to end's triangular prism shape inner core, be equipped with on the inner core central line with the supporting through-hole of the seamless taper pipe of production, correspond on the three side of inner core and be equipped with the closing cap, the side of inner core is formed with the accommodation space that can supply roller mould body embedding with the closing cap cooperation back that corresponds is inside, and the cooperation external cover of a plurality of inner core and all closing caps has the cylindricality shell.

In the above-mentioned multiple roll surrounding type high-precision seamless taper pipe forming roll mould, two ends of the cylindrical shell are provided with limit stoppers.

Compared with the prior art, the taper pipe forming roller die comprises a plurality of groups of forming modules which are sequentially arranged along the axial direction of a pipe to be processed, each group of forming modules comprises three roller die bodies which are radially distributed around the axial line, the pipe to be processed is moved by rotating and linearly feeding, the annular distribution design of the roller die bodies around one circle is compared with the existing mode design, when the pipe contacts the roller die bodies, the acting force is dispersed on three different roller die bodies, the three different roller die bodies can simultaneously give the pipe reaction force to carry out rolling type forming processing on the pipe, the reaction force is more dispersed and uniform, the taper pipe with higher processing precision is obtained, and the taper pipe can be used for processing millimeter-level capillary flexible seamless taper pipes, because the utility model discloses each group of forming modules comprises three roller die bodies which are annularly distributed around the axial line, the increase of roller die body figure also makes the fault-tolerant rate of self higher, makes the seamless taper pipe of capillary flexibility homoenergetic satisfy the industrial production requirement on processing qualification rate and machining precision, adopts the utility model discloses a mould carries out the manufacturing cost of the seamless taper pipe of capillary flexibility processing that also greatly reduced the seamless taper pipe of capillary flexibility.

Further, in two sets of adjacent forming module along the taper pipe linear motion direction, preceding forming module's minimum cold pressing die orifice diameter is greater than back forming module's minimum cold pressing die orifice diameter and is less than back forming module's the biggest cold pressing die orifice diameter, and this kind of size design makes the utility model discloses under the ideal condition, only need adjust forming module group number, can accomplish the continuous forming processing of the taper pipe of required length.

Furthermore, the effective working length of the forming groove of the roller die body is 1/2-3/4 of the circumference perimeter where the forming groove is located, so that the working area on the roller die body is reasonably utilized, and the conditions of interference between the roller die body and the pipe and the like during rolling processing can be effectively prevented; the utility model discloses a roller mould body is installed on the die carrier, and the die carrier includes a plurality of end to end's triangular prism form inner core, be equipped with on the inner core central line with the supporting through-hole of the seamless taper pipe of production, correspond on the three side of inner core and be equipped with the closing cap, the inside accommodation space that can supply roller mould body embedding that is formed with in the side of inner core and the closing cap cooperation back that corresponds, the die carrier is roller mould body customization for one-tenth, makes three roller mould body can keep relative position's stability each other, provides basic guarantee for taper pipe shaping processing.

To sum up, the utility model has the advantages of can be used for processing the seamless taper pipe of the flexible seamless taper pipe of capillary of millimeter rank, make the seamless taper pipe of the flexible seamless taper pipe of capillary all satisfy the industrial production requirement on processing qualification rate and machining precision.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of a forming module;

FIG. 3 is a schematic structural view of the inner core;

FIG. 4 is a schematic view of the closure;

FIG. 5 is a schematic three-dimensional structure of a cylindrical housing;

FIG. 6 is a schematic cross-sectional view of a cylindrical housing;

fig. 7 is a schematic view showing a state where the molding module is mounted in the mold frame.

Reference numerals: 1-forming module, 2-die carrier, 11-roller die body, 21-inner core, 22-sealing cover, 23-cylindrical shell, 24-limit stop and 25-through hole.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Example (b): the utility model provides a multiple roll centers on processing of seamless taper pipe shaping roller die of high precision of formula, mainly used external diameter size is the seamless taper pipe of the flexible capillary between 2.5-6.5mm, the structure is shown in figure 1 to 7, including a plurality of groups along the shaping module 1 of waiting to process tubular product axis direction and arranging in proper order, every group shaping module 1 all includes three around the radial roller mould body 11 that distributes of axis, roller mould body 11 is fixed on die carrier 2, be equipped with the round shaping groove on the roller mould body 11 circumference, form a complete circular shape cold pressing die orifice behind the shaping groove cooperation of three roller mould body 11, and along with the synchronous rotation of three roller mould body 11, the cold pressing die orifice diameter of formation increases gradually or reduces.

In the practical application process, as the using length of the capillary flexible seamless taper pipe is not required to be too long in the application process, the number of the forming modules 1 in the embodiment is only 4, and the production requirement can be met; in adjacent two sets of forming module 1 along the pipe taper linear motion direction, preceding forming module 1's the minimum die orifice diameter of colding pressing is greater than back forming module 1's the minimum die orifice diameter of colding pressing and is less than back forming module 1's the biggest die orifice diameter of colding pressing, also promptly the utility model discloses an every roller die body 11 all is through the design on the size for there is a part of mutual overlapping in the circular die orifice diameter of colding pressing that two sets of forming module 1 formed around for carry out the continuous cold briquetting of multistage alternate seamless pipe taper.

The center of the roller die body 11 is provided with a shaft hole, and the roller die body 11 is installed through the shaft; the effective working length of the forming groove is 1/2-3/4 of the circumference of the forming groove, the working area on the roller die body 11 is reasonably utilized, and the conditions of interference between the roller die body 11 and the pipe and the like in the rolling process can be effectively prevented.

The die carrier 2 of the utility model comprises a plurality of triangular prism-shaped inner cores 21 which are connected end to end, a through hole 25 matched with the produced seamless taper pipe is arranged on the central line of the inner core 21, sealing covers 22 are correspondingly arranged on three sides of the inner core 21, an accommodating space for embedding the roller die body 11 is formed inside after the side of the inner core 21 is matched with the corresponding sealing cover 22, the accommodating space is slightly larger than the size of the roller die body 11, make roll die body 11 radially have certain adjustment space after packing into, the outside cover of the cooperation body of a plurality of inner core 21 and all closing caps 22 has cylindricality shell 23, seal all closing caps 22 and the cooperation body of inner core 21 and fix, carry out radial spacing, the both ends of cylindricality shell 23 are equipped with limit stop 24, it is spacing to carry out the axial, die carrier 2 is the customization of roll die body 11 size, make three roll die body 11 can keep the stability of relative position each other, provide basic guarantee for taper pipe shaping processing.

The utility model discloses a theory of operation: the utility model discloses straight reciprocating motion need be by the power supply drive to the during operation, the utility model discloses a shaping module 1 is arranged according to the biggest die orifice diameter of colding pressing from big to small in proper order, treats that processing equal diameter straight tube is inside inserts a plug as the centre form, and equal diameter straight tube and plug synchronous feed enter into each roller mould body 11 of shaping module 1 internal drive rotatory, and rotatory roller mould body 11 gives equal diameter straight tube reaction force simultaneously and carries out the contour machining of roll extrusion formula in succession to it, processes into seamless taper pipe with it.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Claims

1. The utility model provides a seamless taper pipe forming roller mould of multiple roll surrounding type high precision which characterized in that: the forming die comprises a plurality of groups of forming modules (1) which are sequentially arranged along the axial direction of a pipe to be processed, each group of forming modules (1) comprises three roller die bodies (11) which are radially distributed around the axis, the roller die bodies (11) are fixed on a die frame (2), forming grooves are formed in the circumferences of the roller die bodies (11), a cold pressing die orifice of a whole circle is formed after the forming grooves of the three roller die bodies (11) are matched, and the diameter of the formed cold pressing die orifice is gradually increased or reduced along with the synchronous rotation of the three roller die bodies (11).

2. The multi-roller surrounding type high-precision seamless taper pipe forming roller mold according to claim 1, wherein: in two adjacent groups of forming modules (1) along the linear movement direction of the taper pipe, the minimum cold pressing die orifice diameter of the front forming module (1) is larger than that of the rear forming module (1) and is smaller than that of the rear forming module (1).

3. The multi-roller surrounding type high-precision seamless taper pipe forming roller mold according to claim 2, wherein: the center of the roller die body (11) is provided with a shaft hole, and the roller die body (11) is installed through the shaft.

4. A multi-roll surrounding type high precision seamless taper pipe forming roll mold according to claim 1, 2 or 3, wherein: the effective working length of the forming groove is 1/2-3/4 of the circumference of the forming groove.

5. A multi-roll surrounding type high precision seamless taper pipe forming roll mold according to claim 1, 2 or 3, wherein: the roll forming die is characterized in that the die holder (2) comprises a plurality of triangular prism-shaped inner cores (21) connected end to end, through holes (25) matched with the produced seamless taper pipes are formed in the center lines of the inner cores (21), sealing covers (22) are correspondingly arranged on three side faces of the inner cores (21), an accommodating space capable of being used for embedding the roll die body (11) is formed in the side faces of the inner cores (21) and the corresponding sealing covers (22) in a matched mode, and a cylindrical shell (23) is sleeved on the outer portion of a matched body of the inner cores (21) and all the sealing covers (22).

6. The multi-roller surrounding type high-precision seamless taper pipe forming roller mold according to claim 5, wherein: and two ends of the cylindrical shell (23) are provided with limit stoppers (24).