CN110899489A - Wedge type adjustable edge rolling die - Google Patents
Wedge type adjustable edge rolling die Download PDFInfo
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- CN110899489A CN110899489A CN201911261747.1A CN201911261747A CN110899489A CN 110899489 A CN110899489 A CN 110899489A CN 201911261747 A CN201911261747 A CN 201911261747A CN 110899489 A CN110899489 A CN 110899489A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000010923 batch production Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
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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
- B21D37/02—Die constructions enabling assembly of the die parts in different ways
-
- 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
-
- 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
- B21D43/003—Positioning devices
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/38—Making other particular articles locksmith's goods, e.g. handles
- B21D53/40—Making other particular articles locksmith's goods, e.g. handles hinges, e.g. door hinge plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention provides a wedge-type adjustable rounding die which comprises a die handle, a wedge-shaped block, a stop block, a sliding block, a Z-shaped fixing plate, an adjustable female die, a positioning clamping block, a base plate, an adjustable supporting plate and a vertical plate. By replacing the adjustable male die and the adjustable supporting plate, the length and the rolling diameter can be adjusted, and hinge products with different diameters can be rolled. The mould is simple in structure and convenient to operate, can meet the edge rolling problem of hinge products with various lengths and diameters, is multipurpose, achieves quick mould change, saves the mould manufacturing cost, improves the production efficiency, and is more suitable for small-batch, multi-variety and multi-batch production modes.
Description
Technical Field
The invention belongs to the technical field of mechanical stamping, and particularly relates to a wedge-type adjustable rolling die suitable for rolling a metal plate hinge.
Background
Hinges, also known as hinges, are mechanical devices used to connect two solids and allow relative rotation between them. The hinge may be constructed of a movable component or may be constructed of a foldable material. The platen is shaped so that one end is a hinge flexure and the other end is a semicircular hook, as shown in figures 1 and 2. The compression object is bound through the hinge connection. The thickness of the pressing plate is 2mm, the pressing plate is made of 08F materials, and the distance between the center of the hinge and the center of the semicircular hook is large and different. The principle of hinge edge rolling adopts a push-round method, a vertical edge rolling die is used, but the length of a hinge product is different according to different purposes of a hinge, when the vertical edge rolling die is used, different requirements can be met on the closing height of a machine tool, the pressure required for edge rolling of the hinge product is very low, but the hinge product is forced to be designed and manufactured into a die with a large closing height due to the fact that the hinge product is very long, the machine tool machining product with a high closing height and a large relative tonnage is selected, the cost for manufacturing the die and the cost for using equipment are increased, and each hinge product needs to be designed and manufactured into one edge rolling die, so that the hinge edge rolling die is not suitable for a small-batch. At present, more than ten hinge products with different material thicknesses, lengths and rolling diameters adopt a traditional vertical rolling die structure, the design and manufacturing cost of each set of die is 1.5 ten thousand yuan, the design and manufacturing cost of the rolling die for the hinge products is 20 ten thousand yuan every year, and the types of devices required to be used are multiple.
Disclosure of Invention
Technical problem to be solved
The invention provides a wedge-type adjustable rounding die, which aims to solve the technical problem of how to meet the requirement of rounding hinge products with various lengths and diameters.
(II) technical scheme
In order to solve the technical problem, the invention provides a wedge-type adjustable rounding die which comprises a die shank, a wedge block, a stop block, a sliding block, a Z-shaped fixing plate, an adjustable female die, a positioning clamping block, a base plate, an adjustable supporting plate and a vertical plate; wherein,
the die handle is of a step shaft structure consisting of an upper cylinder and a lower cylinder, and is connected with a machine tool through the upper cylinder; the bottom surface of the lower cylinder is provided with a through groove, and the lower cylinder is fixedly connected with the top surface of the wedge block through a countersunk head bolt;
the wedge-shaped block is positioned in the through groove on the bottom surface of the lower cylinder of the die shank, the section of the wedge-shaped block is wedge-shaped, and one end of the bottom surface is provided with a 60-degree guide angle; the surface of the wedge block with the angle is attached to the sliding block, and the other side of the wedge block is attached to the stop block;
the stop block is in a wedge-shaped inverted structure, and the bottom surface of the stop block is fixed on the lower die base; threaded blind holes for fixing one end of the tension spring are formed in the two sides of the stop block respectively;
one end of the sliding block is provided with a 60-degree oblique angle and is completely attached to the wedge-shaped block when the distance between the sliding block and the lower die seat is 2-5 mm, and threaded blind holes for fixing the other end of the tension spring are formed in two sides of the end of the sliding block; the center of the other end of the sliding block is provided with a notch; the bottom surface of the sliding block is horizontally placed on the lower die base, one end with a 60-degree oblique angle slides into the Z-shaped fixing plate from the right side, so that the oblique angle is opposite to the 60-degree angle of the wedge-shaped block, and the sliding block can slide on the lower die base left and right smoothly;
the bottom surface of the Z-shaped fixing plate is fixed on the lower die seat, and the two sides of the sliding block are oppositely arranged and used for preventing the sliding block from moving up and down, left and right when the sliding block is pulled by the tension spring to return;
the adjustable female die is of a T-shaped structure, and the protruding part of the adjustable female die is inserted into the notch of the sliding block; a semicircular elongated slot for executing the rolling is formed in the center of the other end of the adjustable female die;
the bottom surface of the positioning material clamping block is fixed on the lower die seat, an elongated slot is formed in the horizontal direction, a plate to be processed is pushed into the elongated slot from the front side to be tightly leaned after being pre-bent, one end which does not need to be pre-bent is tightly jacked by a vertical plate, a base plate is placed on the plate, and the base plate is tightly jacked on the plate through the bolt at the top of the positioning material clamping block;
the adjustable supporting plate is fixed on the lower die base, the part of the plate material which does not need to be pre-bent is supported, and the adjustable supporting plate can be changed into different sizes according to the length of a product, so that the adjusting function is achieved; the vertical plate is fixed on the rear side surface of the adjustable supporting plate.
Furthermore, the centers of the upper cylinder and the lower cylinder are respectively provided with a through hole and a central step hole; the through groove is communicated with the central step hole, a lateral step hole is formed in the position, located on the outer side of the central step hole, of the lower cylinder and located in the through groove, and the central step hole and the lateral step hole are used for tightly connecting the lower cylinder and the wedge block through countersunk bolts.
Furthermore, the distance between the positioning material clamping block and the adjustable female die is more than 5 mm.
Furthermore, the bottom surface of the stop block is connected with the lower die base through a countersunk head bolt.
Further, the sliding block is provided with a bolt for tightly jacking the adjustable female die on the top surface of one end with the notch.
Further, the bottom surface of the Z-shaped fixing plate is fixed on the lower die seat through a bolt.
Furthermore, the protruding part of the adjustable concave die is inserted into the notch of the sliding block to realize over-fit.
Furthermore, the bottom surface of the positioning clamping block is fixed on the lower die seat through a countersunk head bolt.
Furthermore, the adjustable supporting plate is fixed on the lower die base through a bolt.
(III) advantageous effects
The invention provides a wedge-type adjustable rounding die which comprises a die handle, a wedge-shaped block, a stop block, a sliding block, a Z-shaped fixing plate, an adjustable female die, a positioning clamping block, a base plate, an adjustable supporting plate and a vertical plate. By replacing the adjustable male die and the adjustable supporting plate, the length and the rolling diameter can be adjusted, and hinge products with different diameters can be rolled. The mould is simple in structure and convenient to operate, can meet the edge rolling problem of hinge products with various lengths and diameters, is multipurpose, achieves quick mould change, saves the mould manufacturing cost, improves the production efficiency, and is more suitable for small-batch, multi-variety and multi-batch production modes.
Drawings
Fig. 1 is a schematic structural diagram of a conventional platen product: (a) a front view; (b) a top view;
FIG. 2 is a schematic view of another platen product configuration: (a) a front view; (b) a top view;
FIG. 3 is a front cross-sectional view of a wedge-type adjustable rounding die according to an embodiment of the present invention;
FIG. 4 is a top view of a wedge-type adjustable rounding die according to an embodiment of the present invention;
fig. 5 is a partial enlarged view of the wedge-type adjustable rounding die C according to the embodiment of the present invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The embodiment provides a wedge-type adjustable rounding die which is structurally shown in fig. 3-5 and comprises a die shank 1, a wedge block 2, a stop block 3, a Z-shaped fixing plate 4, a sliding block 5, an adjustable female die 6, a positioning clamping block 7, a backing plate 8, an adjustable supporting plate 9, a vertical plate 10, a tension spring 11 and other main components. The rounding die is connected with a machine tool through a die handle 9 and is fixed on a lower die base 14 through M10 multiplied by 40mm countersunk head bolts 12 and M10 multiplied by 40mm bolts 13.
The die handle 1 is a step shaft structure consisting of an upper cylinder with phi 50mm multiplied by 70mm and a lower cylinder with phi 130mm multiplied by 40mm and a bottom surface with a through groove with 80mm multiplied by 10 mm. Step holes with the diameter of 20mm and the diameter of 15mm are respectively formed in an upper cylinder and a lower cylinder at the center of the die handle 1, and a step hole with the large diameter of 20mm and the small diameter of 15mm is also formed at a position 42mm away from the center step hole (positioned in the lower cylinder and positioned in the through groove); a through groove of 80mm multiplied by 10mm is arranged at the position 8mm away from the horizontal side of the bottom surface. The die shank 1 is connected with a machine tool through an upper cylinder with the diameter of 50mm multiplied by 70mm at the upper part of the die shank and moves up and down through the machine tool. The two stepped holes on the die shank 1 are used for tightly connecting the die shank 1 and the wedge block 2 through two M12 multiplied by 50mm countersunk head bolts 15.
The wedge block 2 is positioned in a through groove of 80mm multiplied by 10mm on the bottom surface of the die shank 1 and can move up and down along with the die shank 1. The section of the wedge block 2 is wedge-shaped, one end of the bottom surface of the wedge block is provided with a 60-degree guide angle, and the top surface of the wedge block is provided with two M12 blind holes for connecting with the die shank 1 through M12 multiplied by 50mm countersunk head bolts 15. The surface of wedge 8 area angle is laminated with sliding block 5, and the opposite side is laminated with dog 3.
The stop block 3 is of a wedge-shaped inverted structure, two M10 threaded blind holes with the hole pitch of 50mm and the depth of more than 25mm are symmetrically distributed on the bottom surface in the length direction, and the stop block is fastened on the lower die holder 14 through two M10 x 40mm countersunk head bolts 12. And M10 threaded blind holes with the depth of 20mm are respectively formed in the center positions of the two sides of the stop block 3 with the height of 90mm and the horizontal distance of 18mm from the right side, and are used for fixing one end of the tension spring 11.
The size 200mm of sliding block 5 is 90mm by 90mm width, and the one end of sliding block 5 has 60 oblique angles, and with 2 ~ 5mm under the wedge 2 apart from die holder 14 when laminating completely, this end both sides apart from 22mm departments of limit respectively have a degree of depth 20 mm's M10 screw thread blind hole for the other end of fixed extension spring 11. The center of the other end of the sliding block 5 is provided with a notch with the length of 35mm multiplied by 20mm and 90mm, and the top surface is provided with two M10 multiplied by 35mm threaded through holes with the centrosymmetric distribution pitch of 50mm and the distance of 20mm from the edge, and the through holes are used for installing M10 multiplied by 40mm bolts 13 with the function of jacking. The bottom surface of the sliding block 5 is horizontally placed on the lower die holder 14, one end with a 60-degree oblique angle slides into the Z-shaped fixing plate 4 from the right side, so that the oblique angle is opposite to the 60-degree angle of the wedge-shaped block 2, and the sliding block 5 can slide on the lower die holder 14 left and right smoothly.
The bottom surface of the Z-shaped fixing plate 4 is fixed on the lower die holder 14 through two M10 multiplied by 40mm bolts 13 and is oppositely arranged at two sides of the sliding block 5. When the tension spring 11 pulls the sliding block 5 to return, the sliding block 5 is prevented from moving up and down, left and right.
The adjustable female die 6 is of a T-shaped structure, the protruding part of the adjustable female die 6 is inserted into the notch of the sliding block 5 to be excessively matched, and the upper part of the protruding part is fixed and tightly propped through two bolts 13 with the size of M10 multiplied by 40 mm. The center position of the other end of the adjustable concave die 6 is provided with a semicircular long groove with the center distance of 5.5mm and R4.25mm, and the two ends of the semicircular long groove are chamfered by 2.5mm multiplied by 4.8 degrees. The structure can select the length of the adjustable concave die 6 and the radius of the semicircle according to the diameter of the hinge and the length of the hinge product.
The bottom surface of the positioning clamp block 7 is fixed on a lower die base 14 through four M10 multiplied by 40mm countersunk head bolts 12, a long groove with the depth of 85mm multiplied by 10mm is horizontally arranged, the groove depth is 45mm, and the center of the long groove is 45mm away from the bottom surface. The plate 16(85mm multiplied by 45mm multiplied by 4mm) is pre-bent and then pushed into the long groove from the front to be tightly leaned, one end which does not need to be pre-bent is tightly propped by the vertical plate 10, then the backing plate 8 is placed on the plate 16, and then the plate 16 is tightly propped on the plate 16 by two M10 mm multiplied by 40mm bolts 13 at the top of the positioning clamping block 7. The distance between the positioning clamping block 15 and the adjustable female die 6 is more than 5mm, and the positioning clamping block 7 plays a role in positioning and clamping a product material.
The adjustable supporting plate 9 is fixed on the lower die base 14 through two M10 multiplied by 40mm bolts 13, different sizes can be replaced according to the length of a hinge product, the adjusting function is achieved, and the adjustable supporting plate is fixed on the lower die base 14 through two M10 multiplied by 40mm countersunk head bolts 12. The riser 10 is fastened to the rear side of the adjustable support plate 9 by two M10 × 40 bolts 13.
The wedge-type adjustable edge rolling die is simple in structure, convenient to operate, more suitable for small-batch, multi-variety and multi-batch production modes, and low in die manufacturing cost. The sizes of the length and the rolling diameter are adjusted by replacing the adjustable female die 6 and the adjustable supporting plate 9, so that the rolling problem of hinge products with various lengths and diameters can be solved.
The use method of the wedge-type adjustable rounding die of the embodiment comprises the following steps:
1. four hoisting bolts 17 at two sides of the lower die holder 14 are hoisted and installed, the rounding die is placed on the table top of a machine tool, the cylinder phi 50mm of the die shank 1 is connected with the machine tool, the lower die holder 14 is tightly pressed on the table top of the machine tool by using a universal tool, namely a pressing plate, the wedge block 2 is fastened in a through groove 80mm x 10mm at the bottom of the die shank 1 through two countersunk head bolts 15M 12 x 50mm, and after the machine tool is started, the machine tool reciprocates up and down to drive the wedge block 2 to move up and down;
2. when the machine tool runs to the bottom dead center of the machine tool, the wedge block 2 moves downwards to a position 2-5 mm away from the upper part of the lower die seat 14, the stop dog 3 plays a guiding role, the 60-degree inclined surface of the wedge block 2 is attached to the sliding block 5, the sliding block 5 slides along with the downward movement of the wedge block 2 to drive the adjustable female die 6 screwed on the sliding block to move, and the pre-bent plate 16 clamped through the M10 x 40mm bolt 13, the positioning clamping block 7 and the backing plate 8 is pushed to be round by adopting a hinge principle to complete the rounding. The adjustable supporting plate 9 and the vertical plate 10 respectively play roles in supporting and ejecting materials;
3. when the machine tool returns to the top dead center, the wedge block 2 moves upwards, the two tension springs 11 pull the sliding block 5 and the adjustable female die 6 back to the original positions, the sliding block 5 and the adjustable female die 6 are always pulled in the reciprocating motion of the machine tool and the wedge block 2, and the force balance is kept. When the tension spring 11 pulls the sliding block 5 to move back and forth, the Z-shaped fixing plate 4 plays a role in preventing the sliding block 5 from moving up, down, left and right;
4. and taking out the product to finish processing.
The wedge-type adjustable edge rolling die can greatly save the cost for die design, manufacture, materials and die storage, has multiple functions, can quickly change the die, can reduce the labor intensity of workers for die installation, improves the production efficiency and ensures the product quality.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A wedge-type adjustable rounding die is characterized by comprising a die shank, a wedge block, a stop block, a sliding block, a Z-shaped fixing plate, an adjustable female die, a positioning clamping block, a base plate, an adjustable supporting plate and a vertical plate; wherein,
the die handle is of a step shaft structure consisting of an upper cylinder and a lower cylinder, and is connected with a machine tool through the upper cylinder; the bottom surface of the lower cylinder is provided with a through groove, and the lower cylinder is fixedly connected with the top surface of the wedge block through a countersunk head bolt;
the wedge-shaped block is positioned in the through groove on the bottom surface of the lower cylinder of the die shank, the section of the wedge-shaped block is wedge-shaped, and one end of the bottom surface is provided with a 60-degree guide angle; the surface of the wedge block with the angle is attached to the sliding block, and the other side of the wedge block is attached to the stop block;
the stop block is of a wedge-shaped inverted structure, and the bottom surface of the stop block is fixed on the lower die base; threaded blind holes for fixing one end of the tension spring are formed in the two sides of the stop block respectively;
one end of the sliding block is provided with a 60-degree oblique angle and is completely attached to the wedge-shaped block at a distance of 2-5 mm from the lower die holder, and threaded blind holes for fixing the other end of the tension spring are formed in two sides of the end of the sliding block; the center of the other end of the sliding block is provided with a notch; the bottom surface of the sliding block is horizontally placed on the lower die base, one end with a 60-degree oblique angle slides into the Z-shaped fixing plate from the right side, so that the oblique angle is opposite to the 60-degree angle of the wedge-shaped block, and the sliding block can slide on the lower die base left and right smoothly;
the bottom surface of the Z-shaped fixing plate is fixed on the lower die seat, and the two sides of the sliding block are oppositely arranged and used for preventing the sliding block from moving up and down, left and right when the sliding block is pulled by the tension spring to return;
the adjustable female die is of a T-shaped structure, and the protruding part of the adjustable female die is inserted into the notch of the sliding block; a semicircular elongated slot for executing the rolling is formed in the center of the other end of the adjustable female die;
the bottom surface of the positioning material clamping block is fixed on the lower die seat, an elongated slot is formed in the horizontal direction, a plate to be processed is pushed into the elongated slot from the front side to be tightly leaned after being pre-bent, one end which does not need pre-bending is tightly jacked by a vertical plate, a backing plate is placed on the plate, and the backing plate is tightly jacked on the plate through the bolt at the top of the positioning material clamping block;
the adjustable supporting plate is fixed on the lower die base, the part of the plate which does not need to be pre-bent is supported, and the adjustable supporting plate can be changed into different sizes according to the length of a product, so that the adjusting function is achieved; the vertical plate is fixed on the rear side face of the adjustable supporting plate.
2. The edge rolling die of claim 1, wherein the centers of the upper cylinder and the lower cylinder are respectively provided with a through hole and a central stepped hole; the through groove is communicated with the central step hole, a lateral step hole is formed in the position, located on the outer side of the central step hole, of the lower cylinder and located in the through groove, and the central step hole and the lateral step hole are used for tightly connecting the lower cylinder and the wedge block through countersunk bolts.
3. The edge rolling die of claim 1, wherein the distance between the positioning clamp block and the adjustable female die is more than 5 mm.
4. The rounding die of claim 1, wherein the bottom surface of the stop is connected to the lower die holder by a countersunk bolt.
5. The rounding die of claim 1, wherein said slide block has a bolt mounted on a top surface of the notched end thereof for tightening the adjustable die.
6. The edge rolling die of claim 1, wherein the bottom surface of the Z-shaped fixing plate is fixed on the lower die holder through a bolt.
7. The rounding die of claim 1, wherein the protrusions of said adjustable female die are inserted into the notches of the slide blocks to achieve over-fit.
8. The rounding die of claim 1, wherein the bottom surface of said positioning clamping block is secured to the lower die base by means of countersunk bolts.
9. The edge rolling die of claim 1, wherein the adjustable supporting plate is fixed on the lower die holder through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911261747.1A CN110899489A (en) | 2019-12-10 | 2019-12-10 | Wedge type adjustable edge rolling die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911261747.1A CN110899489A (en) | 2019-12-10 | 2019-12-10 | Wedge type adjustable edge rolling die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110899489A true CN110899489A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911261747.1A Withdrawn CN110899489A (en) | 2019-12-10 | 2019-12-10 | Wedge type adjustable edge rolling die |
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| Country | Link |
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| CN (1) | CN110899489A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113319213A (en) * | 2021-06-07 | 2021-08-31 | 东阳市创意箱包有限公司 | Rapid forming and manufacturing device for creative support hinge of upper turnover door of draw-bar box |
-
2019
- 2019-12-10 CN CN201911261747.1A patent/CN110899489A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113319213A (en) * | 2021-06-07 | 2021-08-31 | 东阳市创意箱包有限公司 | Rapid forming and manufacturing device for creative support hinge of upper turnover door of draw-bar box |
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Application publication date: 20200324 |