CN114850362B - One-time forming die for stamping character clips - Google Patents
One-time forming die for stamping character clips Download PDFInfo
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- CN114850362B CN114850362B CN202210673096.2A CN202210673096A CN114850362B CN 114850362 B CN114850362 B CN 114850362B CN 202210673096 A CN202210673096 A CN 202210673096A CN 114850362 B CN114850362 B CN 114850362B
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- piece
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- 238000003825 pressing Methods 0.000 claims abstract description 74
- 238000005452 bending Methods 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- 238000007373 indentation Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 description 13
- 230000010365 information processing Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 238000004806 packaging method and process Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001467 acupuncture Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F45/00—Wire-working in the manufacture of other particular articles
- B21F45/16—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/004—Bending wire other than coiling; Straightening wire by means of press-type tooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F23/00—Feeding wire in wire-working machines or apparatus
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a one-time forming die for stamping a character clip, which comprises: the lower die is sequentially provided with a wire feeding piece, a wire cutting piece and a forming assembly along the feeding direction; the molding assembly comprises an insert, a bending piece and a fork pressing piece; the upper die comprises a first shovel block, a second shovel block and a third shovel block, wherein the heights of the first shovel block, the second shovel block and the third shovel block are gradually decreased; a sliding assembly; when the die is assembled, the first shovel block is matched with the outer end of the first sliding block and pushes the tangent part to achieve tangent, then the second shovel block is matched with the outer end of the second sliding block and pushes the bending part to press wires into U-shaped blanks, and finally the third shovel block is matched with the outer end of the third sliding block and pushes the fork pressing part to press the U-shaped blanks into U-shaped finished products.
Description
Technical Field
The invention relates to the technical field of stamping dies, in particular to a one-time forming die for stamping a character clip.
Background
The fixing clip for shirt packaging is shaped like a Chinese character 'zhi', so that the fixing clip is commonly called a Chinese character 'zhi'; the traditional shirt packaging locating clip is of a pin type, and the defects of the traditional shirt packaging locating clip are as follows: 1. the iron material is not environment-friendly and is not beneficial to recycling; 2. during the packaging and disassembling processes, the human body is easy to be stabbed; the defects of the traditional plastic shirt packaging locating clip are that: 1. is easy to break in a low-temperature environment; 2. the fastening strength is not enough; 3. the volume is larger; i develop a novel fixing clip for the defect, such as that disclosed in China issued patent 201721208617.8. In the prior art, the mode of making the 'double-ended' word clamp is artificial assembly line processing, and in the assembly line, at least 3 working posts are sequentially arranged along the conveying direction of the conveying belt, and cutting, bending and crossing are performed on the wire, so that the defects of high labor cost, low production efficiency and low precision exist, and the production efficiency of the 'double-ended' word clamp is limited.
Disclosure of Invention
The invention aims to provide a one-time forming die for stamping a character clamp, which has a simple structure, and can sequentially perform cutting, bending and forking procedures on wires through die assembly, thereby saving labor cost and improving production efficiency.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a one-time forming die for stamping a character clip, comprising:
the lower die is sequentially provided with a wire feeding piece, a wire cutting piece and a forming assembly along the feeding direction; the molding assembly comprises an insert, a bending piece and a fork pressing piece;
the upper die comprises a first shovel block, a second shovel block and a third shovel block, wherein the heights of the first shovel block, the second shovel block and the third shovel block are gradually decreased;
The sliding assembly comprises a first sliding block, a second sliding block and a third sliding block; the first sliding block is in sliding fit with the lower die, the inner end of the first sliding block is connected with the blanking piece, and the outer end of the first sliding block is matched with the first shovel block; the second sliding block is in sliding fit with the lower die, the inner end of the second sliding block is connected with the press bending piece, and the outer end of the second sliding block is matched with the second shovel block; the third sliding block is in sliding fit with the lower die, the inner end of the third sliding block is connected with the pressing fork piece, and the outer end of the third sliding block is matched with the third shovel block;
When the die is assembled, the first shovel block is matched with the outer end of the first sliding block and pushes the tangent part to achieve tangent, then the second shovel block is matched with the outer end of the second sliding block and pushes the bending part to press wires into U-shaped blanks, and finally the third shovel block is matched with the outer end of the third sliding block and pushes the fork pressing part to press the U-shaped blanks into U-shaped finished products.
More preferably, the outer ends of the first shovel block and the first sliding block can be in slope fit, spherical fit and the like, and the fit mode between the other shovel blocks and the sliding blocks is the same as the above fit mode, and details are not repeated here; further preferably, the end of the first shovel block is provided with a first inclined plane facing the first sliding block, and the first sliding block is provided with a second inclined plane matched with the first inclined plane.
Preferably, the upper die further comprises a fourth shovel block, wherein the height of the fourth shovel block is greater than that of the second shovel block and greater than that of the third shovel block;
the molding assembly further comprises a pressure head piece, wherein the pressure head piece is positioned at the opposite side of the bending piece;
the sliding assembly further comprises a fourth sliding block, the fourth sliding block is in sliding fit with the lower die, the inner end of the fourth sliding block is connected with the pressure head piece, and the outer end of the fourth sliding block is matched with the fourth shovel block;
When the die is assembled, after the U-shaped blank is pressed out by the bending part, the fourth shovel block is matched with the outer end of the fourth sliding block and pushes the pressing head part to press the cutting end of the U-shaped blank into a round head.
More preferably, the pressing head piece is provided with an acupoint at one end close to the bending piece, and the shape of the acupoint can be, but is not limited to, hemispherical and rectangular; further preferably, the shape of the acupoints is hemispherical; when the pressing head is pressed, the hemispherical acupuncture points can press the cutting end of the wire rod into a hemispherical shape, so that the effect of reducing sharp angles is achieved, and a product is prevented from scratching a user.
Preferably, the lower die further comprises a first reset structure, a second reset structure, a third reset structure and a fourth reset structure; the first reset structure acts on the first sliding block, the second reset structure acts on the second sliding block, the third reset structure acts on the third sliding block, and the fourth reset structure acts on the fourth sliding block;
When the die is opened, the first reset structure gives the outward sliding force of the first sliding block, the second reset structure gives the outward sliding force of the second sliding block, the third reset structure gives the outward sliding force of the third sliding block, and the fourth reset structure gives the outward sliding force of the fourth sliding block.
More preferably, the first reset structure comprises a first spring, one end of the first spring is propped against the lower die, the other end of the first spring is propped against the first sliding block, when the die is closed, the first spring is compressed, when the die is opened, the spring is released and gives the elastic force for the first sliding block to slide outwards, and the other reset structures are the same as the first reset structure in working principle, and are not repeated here.
Preferably, the insert is an isosceles triangular prism, the pressing fork piece comprises a left pressing block and a right pressing block, the third sliding block can enable the left pressing block and the right pressing block to slide oppositely, anti-slip structures are respectively arranged at the inner ends of the left pressing block and the right pressing block, and the anti-slip structures are matched with the wire diameter of the wire rod.
The lower bottom of the isosceles triangular prism is straight towards the bending part, the first waist of the isosceles triangular prism is inclined towards the anti-slip structure of the left pressing block, and the second waist of the isosceles triangular prism is inclined towards the anti-slip structure of the right pressing block.
Preferably, the third slider includes left sliding structure, right sliding structure and connecting block, left sliding structure's inner acts on the left briquetting, right slider's inner acts on the right briquetting, left sliding structure's outer tip with right sliding structure's outer tip with the connecting block is connected, the connecting block with the cooperation of third shovel piece.
Preferably, the lower die further includes a crossing member having a crossing slope facing the left press block or the right press block.
More preferably, the left pressing block or the right pressing block is provided with a clearance groove at one end close to the cross piece, so that the effect of increasing the stroke is achieved, and the phenomenon that the U-shaped shape of the product is recovered due to insufficient deformation is avoided.
Preferably, the upper die further comprises an upper character pressing piece, and the lower die further comprises a lower character pressing piece corresponding to the upper character pressing piece.
Preferably, the forming assembly further comprises a limiting piece, and the limiting piece is arranged on the opposite side of the wire feeding piece;
when the head end of the wire rod abuts against the limiting piece, the wire feeding piece stops feeding the wire.
More preferably, the wire feeding device further comprises an information processing module, wherein the information processing module can be arranged on an external punching machine tool, the limiting piece is a proximity switch, the proximity switch is electrically connected with the information processing module, the wire feeding piece is electrically connected with an external power supply through the information processing module, when the head of a wire rod is in conflict with the proximity switch, the proximity switch conveys an electric signal to the information processing module, the information processing module sends a stop working instruction to the wire feeding piece, the wire feeding piece stops working, and further, wire feeding is stopped, overlong or too short of the wire rod is avoided, and the wire feeding device is favorable for improving the excellent rate of products.
Preferably, the upper die further comprises an indentation member, wherein the indentation member can press an elastic position on any vertical edge of the U-shaped blank, and the elastic position is in an obtuse angle shape.
Preferably, the lower die further comprises an ejection structure, and the ejection structure acts on the intersection of the 'back' -shaped finished product.
More preferably, the ejection structure comprises a thimble and an air blowing piece, wherein the top end of the thimble acts on the cross part of the product, the air outlet of the air blowing piece faces the product, and the demolding effect of the product is improved.
The invention has the beneficial effects that: the wire feeding piece conveys wires between the upper die and the lower die, then the upper die is pressed down, in the process of pressing down the upper die, the first shovel block is matched with the outer end of the first sliding block and pushes the wire cutting piece to cut the wires, then the second shovel block is matched with the outer end of the second sliding block and pushes the bending piece to press the wires into U-shaped blanks, finally the third shovel block is matched with the outer end of the third sliding block and pushes the fork pressing piece to press the U-shaped blanks into U-shaped finished products, and when the die is opened, the U-shaped blanks can be taken out only.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a lower die structure according to an embodiment of the present invention;
FIG. 3 is one of the schematic longitudinal sectional views of FIG. 2;
FIG. 4 is a second schematic longitudinal section of FIG. 2;
fig. 5 is an exploded view of a lower die according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
FIG. 7 is a partial enlarged view at B in FIG. 5;
Fig. 8 is a schematic diagram of an upper die structure according to an embodiment of the invention.
The figure shows: 1-a lower die;
11-wire feeding piece;
12-cutting line piece;
13-forming components, 131-inserts, 132-bending pieces, 1321-U-shaped notches, 133-fork pressing pieces, 1331-left pressing blocks, 1332-right pressing blocks, 13321-clearance grooves, 134-limiting pieces and 135-pressing pieces;
14-a first cavity;
15-a second cavity;
a 16-L-shaped cavity;
17-a slide block seat;
18-fourth cavity;
19-a cross-piece;
101-pressing down a character piece;
102-an ejection structure;
2-upper die;
21-a first shovel block, which is provided with a first shovel,
22-A second shovel block;
23-pressing up the character piece;
24-indentation member;
3-a sliding assembly;
31-a first slider;
32-a second slider;
33-a third slide block, 331-a left sliding structure, 332-a right sliding structure and 333-a connecting block; 34-fourth slider.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 8, in this embodiment, a one-time forming die for stamping a character clip includes:
The lower die 1 is provided with a wire feeding piece 11, a wire cutting piece 12 and a forming assembly 13 in sequence along the feeding direction; the molding assembly 13 comprises an insert 131, a bending part 132 and a fork pressing part 133;
an upper die 2, wherein the upper die 2 comprises a first shovel block 21, a second shovel block 22 and a third shovel block (not shown in the figure) with the heights decreasing in sequence;
A sliding assembly 3, the sliding assembly 3 comprising a first slider 31, a second slider 32 and a third slider 33; the first sliding block 31 is in sliding fit with the lower die 1, the inner end of the first sliding block 31 is connected with the blanking piece, and the outer end of the first sliding block 31 is matched with the first shovel block 21; the second sliding block 32 is in sliding fit with the lower die 1, the inner end of the second sliding block 32 is connected with the bending piece 132, and the outer end of the second sliding block 32 is matched with the second shovel 22; the third sliding block 33 is in sliding fit with the lower die 1, the inner end of the third sliding block 33 is connected with the fork pressing piece 133, and the outer end of the third sliding block 33 is matched with the third shovel block (not shown in the figure);
When the die is assembled, the first shovel block 21 is first matched with the outer end of the first sliding block 31 and pushes the thread cutting member 12 to cut the thread, then the second shovel block 22 is matched with the outer end of the second sliding block 32 and pushes the bending member 132 to press the wire into a U-shaped blank, and finally the third shovel block (not shown) is matched with the outer end of the third sliding block 33 and pushes the fork pressing member 133 to press the U-shaped blank into a U-shaped finished product.
In this embodiment, the wire is a copper wire.
More preferably, the outer ends of the first shovel 21 and the first slider 31 may be, but not limited to, slope fit, spherical fit, etc., and the fit manner between the other shovel and the slider is the same as the foregoing fit manner, which is not repeated here; further preferably, the end of the first shovel 21 is provided with a first inclined surface facing the first slider 31, and the first slider 31 is provided with a second inclined surface matching the first inclined surface.
In this embodiment, referring to fig. 3 and 8, the tangential member 12 is a blade, the inner end of the first slider 31 is connected with the blade by a screw, the lower die 1 is provided with a first cavity 14, the first slider 31 is slidably matched with the first cavity 14, the outer end of the first slider 31 is exposed out of the first cavity 14 and is provided with a second inclined surface facing the first shovel 21 at the tail end, the first reset structure comprises a first penetrating rod and a first spring penetrating the first penetrating rod, the inner end of the first spring is propped against the cavity wall of the first cavity 14, and the outer end of the first spring is propped against the first slider 31.
In this embodiment, referring to fig. 4 and 8, a U-shaped notch 1321 is formed at one end of the bending part 132 near the insert 131, the lower die 1 is provided with a second cavity 15, the second slider 32 is slidably matched with the second cavity 15, the longitudinal section of the second slider 32 is in an L shape, the bending part 132 and the inner end of the second slider 32 are integrally formed, the outer end of the second slider 32 is exposed out of the second cavity 15 and is provided with a fourth inclined plane facing the second shovel 22 at the end, the bottom end of the second shovel 22 is provided with a third inclined plane facing the fourth inclined plane, the second reset structure comprises a second penetrating rod and a second spring penetrating the second penetrating rod, the inner end of the second spring is propped against the inner wall of the second cavity 15, and the outer end of the second spring is propped against the vertical section of the second slider 32.
Preferably, the third slider 33 includes a left sliding structure 331, a right sliding structure 332, and a connection block 333, wherein an inner end of the left sliding structure 331 acts on the left pressing block 1331, an inner end of the right sliding structure acts on the right pressing block 1332, an outer end of the left sliding structure 331 and an outer end of the right sliding structure 332 are connected to the connection block 333, and the connection block 333 is engaged with the third shovel block (not shown).
In this embodiment, referring to fig. 2 and 6, the left sliding structure 331 includes a left horizontal section and a left vertical section, the left vertical section is connected with the left pressing block 1331 through a screw, the lower die 1 is provided with an L-shaped cavity 16, the left horizontal section is slidably matched with the horizontal section of the L-shaped cavity 16, the left vertical section is slidably matched with the vertical section of the L-shaped cavity 16, the third resetting structure includes a third penetrating rod, and a third spring penetrating through the third penetrating rod, one end of the third spring abuts against the inner wall of the vertical section of the L-shaped cavity 16, the other end abuts against the left vertical section, so that the left pressing block 1331 has a resetting effect, the third resetting structure also includes a fourth penetrating rod, and a fourth spring penetrating through the fourth penetrating rod, one end of the fourth spring abuts against the inner wall of the horizontal section of the L-shaped cavity 16, and the other end of the fourth spring abuts against the left horizontal section, so that the left horizontal section has a resetting effect; the right sliding structure 332 includes a right transverse section portion and a right vertical section portion, the centers of the right sliding structure 332 and the left sliding structure 331 in the lower die 1 are in mirror image distribution, the working principle is the same, and details are not described here, wherein the outer ends of the left transverse section portion and the right transverse section are respectively exposed out of the lower die 1, the connecting block 333 is connected with the left transverse section portion and the right transverse section and is provided with a fifth inclined plane facing a third shovel block (not shown in the figure), and the bottom of the third shovel block (not shown in the figure) is provided with a sixth inclined plane facing the fifth inclined plane.
Preferably, the upper die 2 further includes a fourth shovel (not shown) having a height greater than the height of the second shovel 22 and greater than the height of the third shovel (not shown);
the forming assembly 13 further includes a ram member 135, the ram member 135 being located on the opposite side of the press bending member 132;
The sliding assembly 3 further comprises a fourth sliding block 34, the fourth sliding block 34 is in sliding fit with the lower die 1, the inner end of the fourth sliding block 34 is connected with the pressure head member 135, and the outer end of the fourth sliding block 34 is in fit with the fourth shovel block (not shown in the figure);
When the mold is closed, after the bending member 132 presses out the "U" shaped blank, the fourth shovel block (not shown) cooperates with the outer end of the fourth slider 34 and pushes the pressing member 135 to press the cut end of the "U" shaped blank into a round head.
In this embodiment, the first shovel 21, the second shovel 22, the third shovel (not illustrated in the figure) and the fourth shovel (not illustrated in the figure) may be but not limited to be disposed on the upper die 2 and the external punching device, in this embodiment, the first shovel 21 and the second shovel 22 are disposed on the upper die 2, and the third shovel (not illustrated in the figure) and the fourth shovel (not illustrated in the figure) are disposed on the external punching device, so that in the die assembly process, the corresponding sliding blocks are sequentially contacted according to the first shovel 21, the second shovel 22, the fourth shovel (not illustrated in the figure) and the third shovel (not illustrated in the figure).
In this embodiment, referring to fig. 7, the mold further includes a slide block seat 17 disposed outside the lower mold 1, a fourth slide block 34 slidably engaged with the slide block seat 17, the lower mold 1 is provided with a fourth cavity 18, and the fourth reset structure includes a fifth through rod and a fifth spring disposed on the fifth through rod in a penetrating manner, wherein one end of the fifth spring abuts against an inner wall of the fourth cavity 18, and the other end abuts against the fourth slide block 34.
More preferably, the presser 135 has an acupoint at one end near the press brake 132, and the acupoint may be, but is not limited to, hemispherical, rectangular; further preferably, the shape of the acupoints is hemispherical; when the pressing head is pressed, the hemispherical acupuncture points can press the cutting end of the wire rod into a hemispherical shape, so that the effect of reducing sharp angles is achieved, and a product is prevented from scratching a user.
Preferably, the lower die 1 further comprises a first reset structure, a second reset structure, a third reset structure and a fourth reset structure; the first reset structure acts on the first slider 31, the second reset structure acts on the second slider 32, the third reset structure acts on the third slider 33, and the fourth reset structure acts on the fourth slider 34;
Wherein, during the mold opening, the first reset structure gives the outward sliding force to the first slide block 31, the second reset structure gives the outward sliding force to the second slide block 32, the third reset structure gives the outward sliding force to the third slide block 33, and the fourth reset structure gives the outward sliding force to the fourth slide block 34.
More preferably, the first reset structure includes a first spring, one end of the first spring is propped against the lower die 1, the other end is propped against the first slider 31, when the die is closed, the first spring is compressed, when the die is opened, the spring is released and gives the elastic force for the first slider 31 to slide outwards, and the rest reset structures have the same working principle as the first reset structure, and are not repeated here.
Preferably, the insert 131 is an isosceles triangular prism, the fork pressing piece 133 includes a left pressing block 1331 and a right pressing block 1332, the third sliding block 33 can enable the left pressing block 1331 and the right pressing block 1332 to slide in opposite directions, and anti-slip structures are respectively arranged at inner ends of the left pressing block 1331 and the right pressing block 1332 and are matched with wire diameters of wires.
Wherein, the bottom of the isosceles triangular prism is straight towards the bending part 132, the first waist of the isosceles triangular prism is inclined towards the anti-slip structure of the left pressing block 1331, and the second waist of the isosceles triangular prism is inclined towards the anti-slip structure of the right pressing block 1332.
Preferably, the lower die 1 further includes a cross member 19, and the cross member 19 has a cross slope facing the left pressing piece 1331 or the right pressing piece 1332.
More preferably, the left pressing block 1331 or the right pressing block 1332 is provided with a clearance groove 13321 at one end close to the cross piece 19, so that the effect of increasing the stroke is achieved, and the U-shaped shape of the product is prevented from being restored due to insufficient deformation. In the embodiment, a space-avoiding groove 13321 is arranged on the right pressing block 1332
Preferably, the upper die 2 further includes an upper pressing character 23, and the lower die 1 further includes a lower pressing character 101 corresponding to the upper pressing character 23.
Preferably, the forming assembly 13 further includes a limiting member 134, and the limiting member 134 is disposed at an opposite side of the wire feeding member 11;
When the head end of the wire abuts against the limiting piece 134, the wire feeding piece 11 stops feeding.
More preferably, the wire feeding device further comprises an information processing module, the information processing module can be arranged on an external punching machine tool, the limiting piece 134 is a proximity switch, the proximity switch is electrically connected with the information processing module, the wire feeding piece 11 is electrically connected with an external power supply through the information processing module, when the head of a wire rod is in conflict with the proximity switch, the proximity switch transmits an electrical signal to the information processing module, the information processing module sends a stop working instruction to the wire feeding piece 11, the wire feeding piece 11 stops working, further, wire feeding is stopped, overlong or too short of the wire rod is avoided, and improvement of the product yield is facilitated.
Preferably, the upper die 2 further comprises an indentation member 24, and the indentation member 24 can press elastic positions on any vertical edge of the U-shaped blank, and the elastic positions are in an obtuse angle shape.
Preferably, the lower die 1 further comprises an ejection structure 102, and the ejection structure 102 acts on the intersection of the "still" shaped finished product.
More preferably, the ejection structure 102 comprises a thimble and an air blowing piece, wherein the top end of the thimble acts on the cross part of the product, and the air outlet of the air blowing piece faces to the product, so that the demolding effect of the product is improved.
In the embodiment, the lower die 1 is also provided with four guide posts, and the upper die 2 is also provided with guide posts matched with the guide posts; the assembly is convenient, and the guiding function is realized when the die is opened and closed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A one-time forming die for stamping a character clip, comprising:
the lower die is sequentially provided with a wire feeding piece, a wire cutting piece and a forming assembly along the feeding direction; the molding assembly comprises an insert, a bending piece and a fork pressing piece;
the upper die comprises a first shovel block, a second shovel block and a third shovel block, wherein the heights of the first shovel block, the second shovel block and the third shovel block are gradually decreased;
the sliding assembly comprises a first sliding block, a second sliding block and a third sliding block; the first sliding block is in sliding fit with the lower die, the inner end of the first sliding block is connected with the tangent piece, and the outer end of the first sliding block is matched with the first shovel block; the second sliding block is in sliding fit with the lower die, the inner end of the second sliding block is connected with the press bending piece, and the outer end of the second sliding block is matched with the second shovel block; the third sliding block is in sliding fit with the lower die, the inner end of the third sliding block is connected with the pressing fork piece, and the outer end of the third sliding block is matched with the third shovel block;
When the die is assembled, the first shovel block is matched with the outer end of the first sliding block and pushes the tangent part to achieve tangent, then the second shovel block is matched with the outer end of the second sliding block and pushes the bending part to press wires into U-shaped blanks, and finally the third shovel block is matched with the outer end of the third sliding block and pushes the fork pressing part to press the U-shaped blanks into U-shaped finished products;
the insert is an isosceles triangular prism, the fork pressing piece comprises a left pressing block and a right pressing block, the third sliding block can enable the left pressing block and the right pressing block to slide oppositely, anti-slip structures are respectively arranged at the inner ends of the left pressing block and the right pressing block, and the anti-slip structures are matched with the wire diameter of a wire rod;
The lower bottom of the isosceles triangular prism is straight towards the bending part, the first waist of the isosceles triangular prism is inclined towards the anti-skid structure of the left pressing block, and the second waist of the isosceles triangular prism is inclined towards the anti-skid structure of the right pressing block;
The lower die further comprises a cross piece, wherein the cross piece is provided with a cross inclined surface, and the cross inclined surface faces the left pressing block or the right pressing block; the left pressing block or the right pressing block is provided with a clearance groove at one end close to the cross piece.
2. The one-shot forming die for stamping a character clip according to claim 1, wherein the upper die further comprises a fourth spade block having a height less than a height of the second spade block and greater than a height of the third spade block;
the molding assembly further comprises a pressure head piece, wherein the pressure head piece is positioned at the opposite side of the bending piece;
the sliding assembly further comprises a fourth sliding block, the fourth sliding block is in sliding fit with the lower die, the inner end of the fourth sliding block is connected with the pressure head piece, and the outer end of the fourth sliding block is matched with the fourth shovel block;
when the die is assembled, after the U-shaped blank is pressed out by the bending part, the fourth shovel block is matched with the outer end of the fourth sliding block, and the pressing head part is pushed to press the cutting end of the U-shaped blank into a round head.
3. The one-shot forming die for stamping a character clip as recited in claim 2, wherein the lower die further comprises a first reset structure, a second reset structure, a third reset structure, and a fourth reset structure; the first reset structure acts on the first sliding block, the second reset structure acts on the second sliding block, the third reset structure acts on the third sliding block, and the fourth reset structure acts on the fourth sliding block;
When the die is opened, the first reset structure gives the outward sliding force of the first sliding block, the second reset structure gives the outward sliding force of the second sliding block, the third reset structure gives the outward sliding force of the third sliding block, and the fourth reset structure gives the outward sliding force of the fourth sliding block.
4. The one-shot forming die for stamping a character-clip according to claim 1, wherein the third slider includes a left slide structure, a right slide structure, and a connection block, an inner end of the left slide structure acts on the left press block, an inner end of the right slide structure acts on the right press block, an outer end of the left slide structure and an outer end of the right slide structure are connected with the connection block, and the connection block is engaged with the third shovel block.
5. The one-shot forming die for stamping a character carrier as defined in claim 1, wherein said upper die further comprises an upper punch and said lower die further comprises a lower punch corresponding to said upper punch.
6. The one-shot forming die for stamping a character clip as defined in claim 1, wherein said forming assembly further comprises a stop member disposed on opposite sides of said wire feed;
when the head end of the wire rod abuts against the limiting piece, the wire feeding piece stops feeding the wire.
7. A one-time forming die for stamping a character holder as defined in claim 1, wherein the upper die further comprises an indentation member capable of pressing out a spring point on either vertical side of the U-shaped blank, the spring point being in an obtuse angle.
8. A one-shot forming die for stamping a doubleword clip as defined in claim 1, wherein said lower die further includes an ejector structure, said ejector structure acting at the intersection of the doubleword shaped finished products.
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| CN202210673096.2A CN114850362B (en) | 2022-06-14 | 2022-06-14 | One-time forming die for stamping character clips |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210673096.2A CN114850362B (en) | 2022-06-14 | 2022-06-14 | One-time forming die for stamping character clips |
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| CN114850362B true CN114850362B (en) | 2024-04-16 |
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| CN114850362A (en) | 2022-08-05 |
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