CN115401111B - Continuous stretching die - Google Patents
Continuous stretching die Download PDFInfo
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- CN115401111B CN115401111B CN202210949374.2A CN202210949374A CN115401111B CN 115401111 B CN115401111 B CN 115401111B CN 202210949374 A CN202210949374 A CN 202210949374A CN 115401111 B CN115401111 B CN 115401111B
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- stretching
- rotary cutting
- shearing
- die holder
- composite
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
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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
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/28—Associations of cutting devices therewith
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Forging (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a continuous stretching die, which belongs to the technical field of electronic cigarette aluminum pipe stretching processes, and comprises the following components: the die comprises an upper die holder, a lower die holder, a plurality of guide post structures, a composite shearing and pulling structure, a hollow structure, a continuous stretching structure, a bottom shaping structure, a mouth rotary cutting structure and a discharging structure. The upper die holder and the lower die holder are arranged in a relatively opening and closing manner; the guide pillar structures are respectively connected with the upper die holder and the lower die holder, and guide the relative opening and closing actions of the upper die holder and the lower die holder; the composite shearing and pulling structure, the hollow structure, the continuous stretching structure, the bottom shaping structure, the mouth rotary cutting structure and the discharging structure are all arranged between the upper die holder and the lower die holder. The continuous stretching die solves the technical problems of small application range and insufficient processing precision of the stretching die in the prior art.
Description
Technical Field
The invention relates to the technical field of electronic cigarette aluminum pipe stretching processes, in particular to a continuous stretching die.
Background
The stretching die is necessary technological equipment for realizing the stretching process, and can be used for punching, blanking, bending, stretching and other forming processing processes. The working principle of the stretching die in the prior art is as follows: the upper die body is fixed on a sliding block of the press, the lower die body is fixed on a workbench, and a rubber pad which plays a role in pressing is fixed on the upper die body. When the die works, a user needs to put a workpiece at a specified position of the lower die body, then, the press is started, the sliding block moves downwards to start to enter the die, at the moment, the rubber pad firstly presses the workpiece to the lower die body, namely, the material is pressed, and finally, the upper die body presses the workpiece into the lower die body to stretch. Specifically, most of the moulds for the stretched products of the aluminum tubes of the electronic cigarettes are in a single-punch structure or a multi-station continuous mould structure; the single-die structure has the defects of low production efficiency, inconvenient product turnover and the like; in addition, the multi-station progressive die structure is a combination of a plurality of groups of single-punch die dies and mechanical equipment, and the mode has high production efficiency, but is only aimed at the production of one aluminum material in die technology and is not suitable for the stretch forming of three aluminum pipe sections. Aiming at the defect of a single die structure, chinese patent CN203417997U discloses a stretch forming progressive die which comprises a stretch male die, a stretch female die, a fine stamping punch, a clamping plate insert, a stripper plate double-layer insert and a lower die plate double-layer insert, wherein the stretch male die and the stretch female die are arranged on the lower die plate double-layer insert, and the fine stamping punch is arranged on the clamping plate insert. The disclosed drawing mold for the continuous drawing molding die can improve the defect of low production efficiency caused by a single-punch mold.
However, the stretch-forming progressive die disclosed above has the technical problems that the hard metal profile cannot be stretched and the processing precision is insufficient. Specifically, the disclosed continuous stretch forming die adopts a coating plate for positioning and introduces a clamping plate insert double-layer structure, so that the work efficiency of the stretching process of the fine punching small hole structure is improved compared with that of the etching hole structure. However, in the requirements of the electronic cigarette aluminum pipe stretching process, the existing electronic cigarette aluminum pipe profile is required to be changed from a first aluminum material to a third aluminum material; the hardness of the first aluminum material is lower than that of the third aluminum material, so that the defects of three injuries in appearance of the electronic smoke tube product are easily caused when the existing stretching die is used for processing the first aluminum material, and the yield of the product is affected; that is, the existing stretching die cannot be applied to continuous stretching processing of a hard metal section, so that the existing stretching die has the technical problem of small application range. In addition, in the existing continuous stretching die, stretching convex and concave dies are directly used for stretching metal profiles, then a fine blanking punch is used for cutting and blanking the profiles, and the defects that the metal profiles with high hardness are easy to stretch and break or rebound and deform after stretching are overcome, so that the processing precision of products is affected.
Disclosure of Invention
Accordingly, it is necessary to provide a continuous stretching die for solving the technical problems of small application range and insufficient processing precision of the stretching die in the prior art.
A continuous stretching die, comprising: the die comprises an upper die holder, a lower die holder, a plurality of guide post structures, a composite shearing and pulling structure, a hollow structure, a continuous stretching structure, a bottom shaping structure, a mouth rotary cutting structure and a discharging structure. The upper die holder and the lower die holder are arranged in a relatively opening and closing manner; the guide pillar structures are respectively connected with the upper die holder and the lower die holder, and guide pillar structures guide the relative opening and closing actions of the upper die holder and the lower die holder.
Specifically, the composite shearing and pulling structure comprises a shearing and pulling upper base plate, a shearing and pulling upper part, a composite stretching part, a composite shearing part, a shearing and pulling lower part, a composite shearing matching part, a composite stretching female die, a composite jacking part, a composite shearing spring and a shearing and pulling lower base plate. The shearing and pulling upper base plate is connected below the upper die holder; the shearing upper part is connected below the shearing upper base plate, and the composite stretching part is connected in the shearing upper part; the composite shearing part is movably sleeved outside the composite stretching part; the shearing lower part and the shearing upper part are oppositely arranged; the composite shearing matching part is connected to the shearing lower part and sleeved outside the composite stretching female die; the composite shearing part is movably sleeved in the shearing matching part, and the composite stretching female die and the composite shearing part are oppositely arranged; the composite jacking part is arranged in the composite stretching female die, the composite shearing springs are respectively connected with the composite jacking part and the lower die holder, and the shearing lower base plate is connected to the bottom of the shearing lower part.
Specifically, the air-step structure is provided with an air-step structure upper part, an air-step pressing part and an air-step structure lower part; the upper part of the air-step structure is connected below the shearing upper backing plate; the air-step pressing part is movably sleeved in the upper part of the air-step structure; the lower part of the air-step structure is opposite to the upper part of the air-step structure and is connected to the shearing lower base plate.
Specifically, the continuous stretching structure is provided with a plurality of stretching parts; the stretching parts are adjacently arranged between the air-step structure and the bottom shaping structure, and each stretching part is provided with a stretching connection upper part, a stretching punch, a stretching guide frame, a stretching female die, a stretching jacking block, a stretching jacking spring and a stretching connection lower part. The upper part of the stretching connection is connected below the upper die holder; the stretching punch is connected to the upper part of the stretching connection and movably penetrates through the stretching guide frame; the stretching female die is arranged below the stretching guide frame; the stretching jacking block is movably sleeved on the stretching female die; the stretching jacking spring is connected below the stretching jacking block; the lower part of the stretching connection is opposite to the upper part of the stretching connection and is connected to the lower die holder.
Specifically, the bottom shaping structure is arranged on the side surface of the continuous stretching structure, and the bottom shaping structure is provided with a bottom shaping structure upper part, a bottom shaping punch and a bottom shaping female die. The upper part of the bottom shaping structure is connected below the upper die holder; the bottom shaping punch is connected to the upper part of the shaping structure and is movably connected to the bottom shaping female die; the bottom shaping female die is connected to the lower die holder.
Specifically, the oral area rotary-cut structure set up in between bottom plastic structure with the ejection of compact structure, and, oral area rotary-cut structure has rotary-cut structure upper portion, rotary-cut tool bit, rotary-cut structure guide frame, rotary-cut die, rotary-cut matching tool bit, rotary-cut action portion, rotary-cut guide pin bushing and rotary-cut structure lower part. The upper part of the rotary cutting structure is connected below the upper die holder; the rotary cutting tool bit is connected below the upper part of the rotary cutting structure; the rotary cutting structure guide frame is movably connected with the upper part of the rotary cutting structure; the rotary cutting female die is arranged below the rotary cutting tool bit, and the rotary cutting matching tool bit is movably arranged in the rotary cutting female die and is arranged opposite to the rotary cutting tool bit; the rotary cutting action part is connected to the lower part of the rotary cutting female die, and a plurality of protruding parts are arranged on the side surface of the rotary cutting action part; the rotary cutting guide sleeve is sleeved on the outer side of the rotary cutting action part and is provided with a plurality of continuous undulating parts; the convex part is correspondingly and movably connected with the continuous undulating part. The lower part of the rotary cutting structure is connected to the upper part of the lower die holder. The discharging structure is respectively connected to the side surface of the opening rotary cutting structure and the upper part of the lower die holder.
Further, each guide post structure is provided with a guide sleeve and a guide post.
Furthermore, the guide sleeve is connected to the lower part of the upper die holder.
Furthermore, the guide post is connected to the lower die holder, and the guide post is movably connected with the guide sleeve.
Further, the bottom shaping structure is provided with a shaping jacking block, a shaping jacking spring and a shaping jacking spring sleeve.
Further, the shaping jack-up piece set up in the below of bottom plastic die.
Further, the shaping jack-up spring is respectively connected with the shaping jack-up block and the shaping jack-up spring sleeve.
Furthermore, the shaping jacking spring sleeve is connected with the lower die holder, and the shaping jacking block is movably connected with the shaping jacking spring sleeve.
Further, the lower part of the rotary cutting structure is provided with a rotary cutting jacking column and a rotary cutting spring.
Still further, the rotary-cut jack post set up in the rotary-cut below of matching tool bit, and, the bottom of rotary-cut jack post is connected the rotary-cut spring.
In summary, the continuous stretching die is provided with an upper die holder, a lower die holder, a plurality of guide post structures, a composite shearing and pulling structure, a hollow structure, a continuous stretching structure, a bottom shaping structure, a mouth rotary cutting structure and a discharging structure. The upper die holder and the lower die holder are arranged in a relatively opening and closing manner; the guide pillar structures are respectively connected with the upper die holder and the lower die holder, and guide pillar structures guide the relative opening and closing actions of the upper die holder and the lower die holder. In the repeated relative opening and closing operations of the upper die holder and the lower die holder, the separately processed metal material may be subjected to a continuous shearing and belt drawing step, a continuous stretching step, a bottom shaping step, and a mouth rotary cutting step, respectively. Because the continuous stretching die can firstly perform pre-blanking and pre-stretching on the product, and then respectively perform gradient stretching processing for a plurality of times according to the properties of the metal section; the continuous stretching die increases the range of the applicable metal section bar; meanwhile, the processing precision of the metal section is obviously improved. Therefore, the continuous stretching die solves the technical problems of small application range and insufficient processing precision of the stretching die in the prior art.
Drawings
FIG. 1 is a schematic view of a continuous stretching die according to the present invention;
FIG. 2 is a schematic cross-sectional view of a continuous stretching die according to the present invention;
FIG. 3 is a schematic view of a partial cross-sectional structure of a continuous stretching die according to the present invention;
FIG. 4 is a schematic view of a partial cross-sectional structure of a continuous stretching die according to the present invention;
FIG. 5 is a schematic view of a partial cross-sectional structure of a continuous stretching die according to the present invention;
FIG. 6 is a schematic view of a partial cross-sectional structure of a continuous drawing die according to the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1 and 6, a continuous stretching die of the present invention includes: the die comprises an upper die holder 1, a lower die holder 2, a plurality of guide pillar structures 3, a composite shearing and pulling structure 4, a hollow structure 5, a continuous stretching structure 6, a bottom shaping structure 7, a mouth rotary cutting structure 8 and a discharging structure 9. The upper die holder 1 and the lower die holder 2 are arranged in a relatively opening and closing manner; the guide pillar structures 3 are respectively connected with the upper die holder 1 and the lower die holder 2, and the guide pillar structures 3 guide the relative opening and closing actions of the upper die holder 1 and the lower die holder 2.
Further, the composite shear structure 4 includes a shear upper pad 401, a shear upper portion 402, a composite tensile portion 403, a composite shear portion 404, a shear lower portion 405, a composite shear mating portion 406, a composite tensile die 407, a composite jack-up portion 408, a composite shear spring 409, and a shear lower pad 410. The shearing and pulling upper base plate 401 is connected below the upper die holder 1; the upper shearing part 402 is connected below the upper shearing backing plate 401, and the composite stretching part 403 is connected in the upper shearing part 402; the composite shearing part 404 is movably sleeved outside the composite stretching part 403; the lower shear part 405 is disposed opposite to the upper shear part 402; the composite shear matching part 406 is connected to the shear lower part 405, and the composite shear matching part 406 is sleeved outside the composite stretching female die 407; the composite shearing part 404 is movably sleeved in the shearing matching part 406, and the composite stretching female die 407 is arranged opposite to the composite shearing part 404; the composite jack-up portion 408 is disposed in the composite stretching female die 407, and the composite shear spring 409 connects the composite jack-up portion 404 and the lower die holder 2, respectively, and the shear lower pad 410 is connected to the bottom of the shear lower portion 405.
Further, the air-step structure 5 has an air-step structure upper portion 501, an air-step pressing portion 502, and an air-step structure lower portion 503; the upper part 501 of the air-step structure is connected below the shearing upper base plate 401; the hollow pressing part 502 is movably sleeved in the upper part 501 of the hollow structure; the lower portion of the air-step structure is disposed opposite the upper portion 501 of the air-step structure and is attached to the shear lower pad 410.
Further, the continuous stretching structure 6 has a plurality of stretching portions 601; the stretching portions 601 are adjacently disposed between the air-step structure 5 and the bottom shaping structure 7, and each of the stretching portions 601 has a stretching connection upper portion 601a, a stretching punch 601b, a stretching guide frame 601c, a stretching female die 601d, a stretching jack-up block 601e, a stretching jack-up spring 601f, and a stretching connection lower portion 601g. The stretching connection upper part 601a is connected below the upper die holder 1; the stretching punch 601b is connected to the upper part of the stretching connection and moves through the stretching guide frame 601c; the stretching female die 601d is disposed below the stretching guide frame 601c; the stretching jacking block 601e is movably sleeved on the stretching female die 601d; the stretching jack-up spring 601f is connected below the stretching jack-up block 601 e; the lower tensile connecting portion 601g is disposed opposite to the upper tensile connecting portion 601a and connected to the lower die holder 2.
Further, the bottom shaping structure 7 is disposed on a side surface of the continuous stretching structure 6, and the bottom shaping structure 7 has a bottom shaping structure upper portion 701, a bottom shaping punch 702, and a bottom shaping die 703. The upper part 701 of the bottom shaping structure is connected below the upper die holder 1; the bottom shaping punch 702 is connected to the shaping structure upper part 701 and is movably connected to the bottom shaping die 703; the bottom shaping die 703 is connected to the lower die holder 2.
Further, the mouth rotary cutting structure 8 is disposed between the bottom shaping structure 7 and the discharging structure 9, and the mouth rotary cutting structure 8 includes a rotary cutting structure upper portion 801, a rotary cutting bit 802, a rotary cutting structure guide 803, a rotary cutting female die 804, a rotary cutting matching bit 805, a rotary cutting action portion 806, a rotary cutting guide sleeve 807, and a rotary cutting structure lower portion 808. The upper part 801 of the rotary cutting structure is connected below the upper die holder 1; the rotary cutting bit 802 is connected below the upper part 801 of the rotary cutting structure; the rotary cutting structure guide 803 is movably connected with the upper part 801 of the rotary cutting structure; the rotary cutting female die 804 is arranged below the rotary cutting tool bit 802, and the rotary cutting matching tool bit 805 is movably arranged in the rotary cutting female die 804 and is opposite to the rotary cutting tool bit 802; the rotary cutting operation part 806 is connected to the lower part of the rotary cutting female die 804, and a plurality of protruding parts 806a are arranged on the side surface of the rotary cutting operation part 806; the rotary cutting guide sleeve 807 is sleeved outside the rotary cutting action part 806, and the rotary cutting guide sleeve 807 is provided with a plurality of continuous undulating parts 807a; the convex portion 806a is movably connected with the continuous undulating portion 807a correspondingly. The lower portion 808 of the rotary cutting structure is connected to the lower die holder 2. The discharging structure 9 is respectively connected with the side surface of the opening rotary cutting structure 8 and the upper side of the lower die holder 2.
Specifically, the upper die holder 1 is connected with the lower die holder 2 and an external press, and the upper die holder 1 can be driven by the external press to perform reciprocating die closing and die opening actions with the quick search lower die holder 2; the guide pillar structures 3 are respectively arranged around the upper die holder 1 and the lower die holder 2, and play a role in guiding and correcting the opening and closing actions of the upper die holder 1 and the lower die holder 2. Therefore, when the continuous stretching die is in a working flow, the metal section to be processed firstly enters the composite shearing and stretching structure 4 to cut redundant materials of the metal section, and the metal section after cutting the materials is subjected to preliminary stretching processing. In this step, the upper shearing portion 402 is driven by the upper shearing pad 401 to respectively lower the composite stretching portion 403 and the composite shearing portion 404 to abut against the metal profile, and the redundant portion of the metal profile placed on the composite stretching die 407 is matched and cut off by the composite shearing portion 404 and the composite shearing matching portion 406. When the composite stretching portion 403 descends, the composite shearing portion 404 may slide upwards along the outer wall of the composite stretching portion 403, and cut the material and enter the inner wall of the composite shearing mating portion 406 when the composite stretching portion ascends to the upper dead point, so as to cut the preset portion of the metal profile. In this process, the composite stretching part 403 continuously descends and stretches the metal profile until the inner wall of the composite stretching female die 407 is filled; at this time, the metal profile is preliminarily molded. At this time, the composite jack-up portion 408 is pressed down to compress the composite shear spring 409 below the composite jack-up portion 408, and when the shear pull upper portion 402 moves upward to drive the quick-search composite stretch portion 403 to move upward, the composite shear spring 409 is decompressed and pushes the composite jack-up portion 408 to push the preliminarily molded product to reset.
Further, the primarily stretched product is processed by the air-step structure 5 before entering the continuous stretching structure 6. Specifically, the upper portion 501 of the air-step structure reciprocates under the drive of the upper shearing and pulling plate 401 to perform a relative opening and closing action with the lower portion 503 of the air-step structure, and the air-step pressing portion 502 disposed below the upper portion is made to perform air-step pressing on a product located on the lower portion 503 of the air-step structure; and then transferred into the continuous stretch structure 6. The connecting stretching structure 6 may be provided with a plurality of groups of the stretching parts 601 to perform gradient stretching on the product; thereby avoiding the bad conditions of tearing and the like caused by excessively stretching the product at one time. More specifically, each of the stretching portions 601 is provided with the stretching punch 601b and the stretching die 601d which can sequentially stretch the product. The stretching connection upper part 601a is connected with the upper die holder 1 and is used as a power transmission structure of the stretching punch 601 b; the stretching guide frames 601c are provided at both sides of the stretching punch 601b, and the stretching punch 601b is movably sleeved therein, thereby guiding and correcting the upward or downward movement of the stretching punch 601 b. The stretching and jacking block 601e can jack up and discharge a product which is subjected to the current stretching processing under the cooperation of the stretching and jacking spring 601 f. The continuously drawn product is then subjected to a bottom shaping process by the bottom shaping structure 7 to correct the bottom dimension of the product deviating from a preset value in the continuous drawing operation. The bottom shaping punch 702 is driven by the upper part 701 of the bottom shaping structure to be in contact with the bottom of the product, and is matched with the bottom shaping die 703 to correct the bottom dimension of the product. Thereby improving the processing precision of the continuous stretching process.
Further, the product is transferred to the mouth rotary cutting structure 8 after the bottom shaping, so as to rotationally cut off the redundant part of the mouth of the product. Specifically, the rotary cutting head 802 is driven by the upper part 801 of the rotary cutting structure to move along the guide of the guide frame 803 of the rotary cutting structure to abut against the mouth of the product; a rotary cutting matching tool bit 805 opposite to the rotary cutting tool bit 802 is arranged in the rotary cutting female die 804; the parting surfaces of the rotary cutting bit 802 and the rotary cutting matching bit 805 are the parting surfaces of the product opening. More specifically, when the rotary cutting tool bit 802 pushes the rotary cutting matching tool bit 805 to move downward, the rotary cutting female die 804 is synchronously pressed to move downward, a plurality of protruding portions 806a are arranged on the outer side of the rotary cutting action portion 806 connected below the rotary cutting female die 804, and a plurality of continuous undulating portions 807a are arranged on the inner wall of the rotary cutting guide sleeve 807; the protruding portion 806a is movably connected with the continuous undulating portion 807a in a matching manner, so that when the rotary cutting operation portion 806 descends, the protruding portion 806 provided on the outer side of the rotary cutting operation portion 806 slides over a low point or a high point of the continuous undulating portion 807a in sequence, thereby the rotary cutting operation portion 806 itself forms a side-to-side movement, and drives the rotary cutting female die 804 to swing side-to-side at the same time, further, the rotary cutting tool bit 802 and the rotary cutting matching tool bit 805 are staggered or overlapped with each other, and the mouth of a product is cut off in the process of staggering the rotary cutting tool bit 802 and the rotary cutting matching tool bit 805 with each other. Because the product opening is rotationally cut off by the rotary cutter head 802 and the rotary cutter head 805, the breaking position of the product has a smooth transition notch, and the cutting machining precision of the product is further enhanced. The product after the rotary cutting is guided to a preset turnover position by the discharging structure 9, and the continuous stretching and punching process of the metal section are finished. The product is firstly subjected to pre-blanking and pre-stretching, and then is respectively subjected to gradient stretching processing for a plurality of times according to the properties of the metal section; the continuous stretching die increases the range of the applicable metal section bar; meanwhile, the processing precision of the metal section is obviously improved.
Further, each guide post structure 3 has a guide sleeve 301 and a guide post 302; the guide sleeve 301 is connected to the lower part of the upper die holder 1; the guide post 302 is connected to the lower die holder 2, and the guide post 302 is movably connected to the guide sleeve 301. Specifically, when the upper die holder 1 and the lower die holder 2 perform the opening and closing actions, each guide post 302 may be movably connected with one guide sleeve 301 correspondingly, so as to guide and correct the actions of the upper die holder 1 and the lower die holder 2.
Further, the bottom shaping structure 7 is further provided with a shaping jacking block 704, a shaping jacking spring 705 and a shaping jacking spring housing 706. The shaping jacking block 704 is arranged below the bottom shaping female die 703; the shaping jack-up spring 705 is respectively connected with the shaping jack-up block 704 and the shaping jack-up spring sleeve 706; the shaping jacking spring sleeve 706 is connected with the lower die holder 2, and the shaping jacking block 704 is movably connected with the shaping jacking spring sleeve 706. Specifically, when the bottom shaping punch 702 descends to abut against the product, the shaping jack-up block 704 is triggered to be pressed, and at this time, the shaping jack-up spring 705 is compressed; when the bottom shaping punch 702 is up, the shaping jack-up spring 705 resumes its deformation and jacks up the shaping jack-up block 704, so that the shaped product is jacked up to flow into the subsequent processing steps.
Further, the lower portion 808 of the rotary cutting structure has rotary cutting top posts 808a and rotary cutting springs 808b; the rotary cutting top column 808a is disposed below the rotary cutting matching cutter head 805, and the bottom of the rotary cutting top column 808a is connected with the rotary cutting spring 808b. Specifically, when the product needs to be subjected to the procedure of rotary cutting the mouth, a user turns the product to be rotary cut to the mouth rotary cutting structure 8 in advance, and enables the product to be sleeved outside the rotary cutting matching cutter head 805, the mouth structure of the product to be rotary cut is exposed outside the rotary cutting matching cutter head 805, and when the rotary cutting cutter head 802 descends to abut against the rotary cutting matching cutter head 805, a plane attached by the rotary cutting cutter head 802 and the rotary cutting matching cutter head 805 is a parting surface of the product to be rotary cut. When the rotary cutting tool bit 802 continues to press down the rotary cutting matching tool bit 805, the rotary cutting matching tool bit 805 carries a product to press down the rotary cutting top column 808a and make the rotary cutting spring 808b in a compressed state, meanwhile, when the rotary cutting matching tool bit 805 descends, the rotary cutting action part 806 carries the rotary cutting matching tool bit 805 to rotate in the rotary cutting guide sleeve 807, and in this process, the rotary cutting matching tool bit 805 and the rotary cutting tool bit 802 are repeatedly staggered, so that the mouth structure of the product is cut. The rotary cutting jacking leg 808a and the rotary cutting spring 808b provide supporting force for rotary cutting action at the descending stage of the rotary cutting matching cutter head 805, and the rotary cutting jacking leg 808a and the rotary cutting spring 808b provide pushing force for product ejection and ascending of the rotary cutting matching cutter head 805 at the rebound ascending stage of the rotary cutting matching cutter head 805.
In summary, the continuous stretching die of the present invention is provided with an upper die holder 1, a lower die holder 2, a plurality of guide post structures 3, a composite shearing and pulling structure 4, a hollow structure 5, a continuous stretching structure 6, a bottom shaping structure 7, a mouth rotary cutting structure 8 and a discharging structure 9. The upper die holder 1 and the lower die holder 2 are arranged in a relatively opening and closing manner; the guide pillar structures 3 are respectively connected with the upper die holder 1 and the lower die holder 2, and the guide pillar structures 3 guide the relative opening and closing actions of the upper die holder 1 and the lower die holder 2. In the repeated relative opening and closing operations of the upper die holder 1 and the lower die holder 2, the separately processed metal material may be subjected to a continuous shearing and drawing step, a continuous stretching step, a bottom shaping step, and a mouth rotary cutting step, respectively. Because the continuous stretching die can firstly perform pre-blanking and pre-stretching on the product, and then respectively perform gradient stretching processing for a plurality of times according to the properties of the metal section; the continuous stretching die increases the range of the applicable metal section bar; meanwhile, the processing precision of the metal section is obviously improved. Therefore, the continuous stretching die solves the technical problems of small application range and insufficient processing precision of the stretching die in the prior art.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1.A continuous stretching die, comprising: the device comprises an upper die holder (1), a lower die holder (2), a plurality of guide pillar structures (3), a composite shearing and pulling structure (4), a hollow structure (5), a continuous stretching structure (6), a bottom shaping structure (7), a mouth rotary cutting structure (8) and a discharging structure (9); the upper die holder (1) and the lower die holder (2) are arranged in a relatively opening and closing manner; the guide pillar structures (3) are respectively connected with the upper die holder (1) and the lower die holder (2), and the guide pillar structures (3) guide the relative opening and closing actions of the upper die holder (1) and the lower die holder (2);
The composite shearing and pulling structure (4) is provided with a shearing and pulling upper backing plate (401), a shearing and pulling upper part (402), a composite pulling part (403), a composite shearing part (404), a shearing and pulling lower part (405), a composite shearing and matching part (406), a composite pulling female die (407), a composite jacking part (408), a composite shearing spring (409) and a shearing and pulling lower backing plate (410); the shearing and pulling upper base plate (401) is connected below the upper die holder (1); the shearing upper part (402) is connected below the shearing upper base plate (401), and the composite stretching part (403) is connected in the shearing upper part (402); the composite shearing part (404) is movably sleeved outside the composite stretching part (403); the lower shearing part (405) is arranged opposite to the upper shearing part (402); the composite shear matching part (406) is connected to the shear lower part (405), and the composite shear matching part (406) is sleeved outside the composite stretching female die (407); the composite shearing part (404) is movably sleeved in the shearing matching part (406), and the composite stretching female die (407) is arranged opposite to the composite shearing part (404); the composite jacking part (408) is arranged in the composite stretching female die (407), the composite shearing springs (409) are respectively connected with the composite jacking part (408) and the lower die holder (2), and the shearing lower base plate (410) is connected to the bottom of the shearing lower part (405);
The air-step structure (5) is provided with an air-step structure upper part (501), an air-step pressing part (502) and an air-step structure lower part (503); the upper part (501) of the air-step structure is connected below the shearing upper base plate (401); the air-step pressing part (502) is movably sleeved in the upper part (501) of the air-step structure; the lower part of the air-step structure is opposite to the upper part (501) of the air-step structure and is connected to the shearing lower base plate (410);
The continuous stretching structure (6) has a plurality of stretching sections (601); the stretching parts (601) are adjacently arranged between the air-step structure (5) and the bottom shaping structure (7), and each stretching part (601) is provided with a stretching connection upper part (601 a), a stretching punch (601 b), a stretching guide frame (601 c), a stretching female die (601 d), a stretching jacking block (601 e), a stretching jacking spring (601 f) and a stretching connection lower part (601 g); the stretching connection upper part (601 a) is connected below the upper die holder (1); the stretching punch head (601 b) is connected to the upper part of the stretching connection and movably penetrates through the stretching guide frame (601 c); the stretching female die (601 d) is arranged below the stretching guide frame (601 c); the stretching jacking block (601 e) is movably sleeved on the stretching female die (601 d); the stretching jacking spring (601 f) is connected below the stretching jacking block (601 e); the lower stretching connection part (601 g) is arranged opposite to the upper stretching connection part (601 a) and is connected to the lower die holder (2);
The bottom shaping structure (7) is arranged on the side surface of the continuous stretching structure (6), and the bottom shaping structure (7) is provided with a bottom shaping structure upper part (701), a bottom shaping punch (702) and a bottom shaping female die (703); the upper part (701) of the bottom shaping structure is connected below the upper die holder (1); the bottom shaping punch (702) is connected to the upper part (701) of the shaping structure and is movably connected to the bottom shaping female die (703); the bottom shaping female die (703) is connected to the lower die holder (2);
The mouth rotary cutting structure (8) is arranged between the bottom shaping structure (7) and the discharging structure (9), and the mouth rotary cutting structure (8) is provided with a rotary cutting structure upper part (801), a rotary cutting tool bit (802), a rotary cutting structure guide frame (803), a rotary cutting female die (804), a rotary cutting matching tool bit (805), a rotary cutting action part (806), a rotary cutting guide sleeve (807) and a rotary cutting structure lower part (808); the upper part (801) of the rotary cutting structure is connected to the lower part of the upper die holder (1); the rotary cutting tool bit (802) is connected below the upper part (801) of the rotary cutting structure; the rotary cutting structure guide frame (803) is movably connected with the upper part (801) of the rotary cutting structure; the rotary cutting female die (804) is arranged below the rotary cutting tool bit (802), and the rotary cutting matching tool bit (805) is movably arranged in the rotary cutting female die (804) and is arranged opposite to the rotary cutting tool bit (802); the rotary cutting action part (806) is connected to the lower part of the rotary cutting female die (804), and a plurality of protruding parts (806 a) are arranged on the side surface of the rotary cutting action part (806); the rotary cutting guide sleeve (807) is sleeved on the outer side of the rotary cutting action part (806), and the rotary cutting guide sleeve (807) is provided with a plurality of continuous undulating parts (807 a); the convex part (806 a) is correspondingly and movably connected with the continuous undulating part (807 a); the lower part (808) of the rotary cutting structure is connected to the lower die holder (2); the discharging structure (9) is respectively connected with the side surface of the opening rotary cutting structure (8) and the upper part of the lower die holder (2).
2. A continuous stretching die as in claim 1, wherein: each guide post structure (3) is provided with a guide sleeve (301) and a guide post (302).
3. A continuous stretching die as in claim 2, wherein: the guide sleeve (301) is connected to the lower portion of the upper die holder (1).
4. A continuous stretching die as in claim 3, wherein: the guide pillar (302) is connected to the lower die holder (2), and the guide pillar (302) is movably connected with the guide sleeve (301).
5. A continuous stretching die as in claim 1, wherein: the bottom shaping structure (7) is provided with a shaping jacking block (704), a shaping jacking spring (705) and a shaping jacking spring sleeve (706).
6. A continuous stretching die as in claim 5, wherein: the shaping jacking block (704) is arranged below the bottom shaping female die (703).
7. A continuous stretching die as in claim 6, wherein: the shaping jacking spring (705) is respectively connected with the shaping jacking block (704) and the shaping jacking spring sleeve (706).
8. A continuous stretching die as in claim 7, wherein: the shaping jacking spring sleeve (706) is connected with the lower die holder (2), and the shaping jacking block (704) is movably connected with the shaping jacking spring sleeve (706).
9. A continuous stretching die as in claim 1, wherein: the lower portion (808) of the rotary cutting structure is provided with a rotary cutting jacking column (808 a) and a rotary cutting spring (808 b).
10. A continuous stretching die as in claim 9, wherein: the rotary cutting jacking column (808 a) is arranged below the rotary cutting matching tool bit (805), and the bottom of the rotary cutting jacking column (808 a) is connected with the rotary cutting spring (808 b).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210949374.2A CN115401111B (en) | 2022-08-09 | 2022-08-09 | Continuous stretching die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210949374.2A CN115401111B (en) | 2022-08-09 | 2022-08-09 | Continuous stretching die |
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| CN115401111A CN115401111A (en) | 2022-11-29 |
| CN115401111B true CN115401111B (en) | 2024-05-14 |
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| KR102295915B1 (en) * | 2020-09-01 | 2021-08-31 | 김홍덕 | Shell fuse outer support and device for continuous manufacturing thereof and method thereof |
| CN216461091U (en) * | 2021-11-04 | 2022-05-10 | 惠州至精精密技术有限公司 | Hardware stretching die |
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| CN103465024A (en) * | 2013-09-13 | 2013-12-25 | 茂森精艺金属(苏州)有限公司 | Multi-step extrusion molding method |
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| CN206716836U (en) * | 2017-04-14 | 2017-12-08 | 台光五金制品（东莞）有限公司 | A kind of continuously elongated mould of automobile motor lid |
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| CN115401111A (en) | 2022-11-29 |
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