CN115488253A - Thin material strip material in-mold pulling device - Google Patents
Thin material strip material in-mold pulling device Download PDFInfo
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- CN115488253A CN115488253A CN202211212572.7A CN202211212572A CN115488253A CN 115488253 A CN115488253 A CN 115488253A CN 202211212572 A CN202211212572 A CN 202211212572A CN 115488253 A CN115488253 A CN 115488253A
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- block
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- wedge
- inclined wedge
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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
- B21D43/02—Advancing work in relation to the stroke of the die or tool
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Abstract
The invention discloses a thin material strip material in-mold pulling device which mainly comprises a first hook block, a second hook block, a first lifting mechanism, a second lifting mechanism and a pulling mechanism, wherein the first hook block is connected with the first lifting mechanism; the first lifting mechanism comprises a first inclined wedge, a driving block and a sliding block, the driving block is fixed in the lower die, the two first hook blocks are vertically arranged in the driving block, the first inclined wedge is arranged in the upper die, and the first inclined wedge moves downwards to take the nail and the first hook blocks ascend; the material pulling mechanism comprises a second inclined wedge, a material pulling block and a roller, the material pulling block is connected in the lower template in a sliding mode, the second inclined wedge is fixed in the upper die, and the two second hook blocks are arranged in the material pulling block. The device realizes the pulling action in the process of opening the die, converts the up-and-down motion of the die into the horizontal reciprocating motion of the second hook block, the first hook block is separated from the material belt temporarily in the pulling process, the first hook block is connected with the material belt at any time, and the stepping pulling process becomes more stable due to the cooperation of the two hook blocks.
Description
Technical Field
The invention belongs to the technical field of die cutting, and relates to a thin material strip in-die pulling device.
Background
Thin sheets of thickness below 0.1mm, such as: the material adopts traditional feeder pay-off to the soft aluminum product and copper product partially in cross cutting stamping die, and material area deformation and mould card material phenomenon are comparatively serious, lead to the material often pay-off dislocation of taking, lead to the waste of former material and the damage of mould.
The publication number is: CN 111570654A, the invention discloses an internal pulling and feeding mechanism of a belt mold, which comprises a driving block, a roller and a pulling block, wherein when an upper mold base moves to a lower limit position, the pulling block is pressed against a concave part, at the moment, a protrusion just penetrates into a matching hole of a belt from the lower part, the matching hole matched with the protrusion is arranged on the belt at an interval, when the upper mold base moves upwards, an inclined plane connecting part of the driving block pushes the pulling block to move forwards horizontally, the pulling block drives the belt to move forwards through the protrusion, when the upper mold base moves to the upper limit position, the pulling block is pressed against the convex part, a feeding action is completed, and the belt is conveyed forwards to a station.
Although above-mentioned draw material mechanism can replace to draw the material machine to accomplish the step-by-step material that draws in thin material area, this draws material mechanism only a set of with take the arch of material adaptation, the in-process that the mould was opened, the drive block resets, the arch breaks away from the material area, the material area at this moment is not restricted, in case the material area problem that the fallback appears, then can lead to the dislocation of the often pay-off in subsequent material area.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the in-mold material pulling device for the step feeding of the material belt with the thickness less than or equal to 0.1mm is provided to prevent the phenomenon of dislocation of the feeding of the material belt.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a thin material strip material in-mold pulling device is arranged inside a stamping die and mainly comprises a first hook block, a second hook block, a first lifting mechanism, a second lifting mechanism and a pulling mechanism;
the first hook block and the second hook block are respectively provided with two blocks which are respectively positioned at two sides of the material belt;
the first lifting mechanism comprises a first inclined wedge, a driving block and a sliding block, the driving block is fixed in the lower die, the two first hook blocks are vertically arranged in the driving block, two first connecting blocks are arranged in the driving block, and a first connecting rod fixedly arranged in the first connecting blocks is fixedly connected with the first hook blocks; the side wall of the driving block is provided with a first longitudinal strip hole, and the end part of the first connecting rod is positioned in the first longitudinal strip hole; an equal-height bolt of a back lock in the lower die holder is fixedly connected with the connecting block, and a first spring is sleeved on the equal-height bolt; the bottom of the driving block is provided with a sliding groove corresponding to each first hook block, a sliding block is connected in each sliding groove in a sliding mode, the top of each sliding block is movably connected with the bottom of the first connecting block through an inclined plane structure, the first inclined wedge is installed in the upper die, an elastic block is arranged in the lower die corresponding to the first inclined wedge, and a convex block extending to the outside of the driving block is movably connected with the bottom of the elastic block through an inclined plane structure;
the material pulling mechanism comprises a second inclined wedge, a material pulling block and rollers, the material pulling block is connected in the lower template in a sliding mode, the rollers are arranged on two sides of the material pulling block respectively, the second inclined wedge is fixed in the upper die, an inclined plane arranged at the bottom of the second inclined wedge is in movable contact with the rollers, and the second inclined wedge drives the material pulling block to move towards the direction far away from the first hook block in a downward mode; a transverse reset spring is arranged on one side, opposite to the first hook block, of the material pulling block; a second connecting block is arranged in the pulling block, and a second spring is arranged at the bottom of the second connecting block; the two second hook blocks are arranged in the material pulling block, and a second connecting rod fixedly arranged in the second connecting block is fixedly connected with the second hook blocks; the side wall of the pulling block is provided with a second longitudinal strip hole, and the end part of the second connecting rod is positioned in the second longitudinal strip hole;
the second lifting mechanism comprises a pressing rod, the pressing rod is arranged in the upper die, and the bottom of the pressing rod is movably connected with the second connecting rod.
Therefore, compared with the prior art, the invention has the beneficial effects that: the second hook block is matched with the material pulling mechanism to realize the stepping material pulling of the material belt, the first hook block is temporarily separated from the material belt in the material pulling process, and the first hook block is connected with the material belt at any time, so that the material belt is effectively prevented from retreating, and the feeding precision and the feeding quality of the thin material belt are ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a schematic cross-sectional view of a die cut stamping die according to one embodiment;
FIG. 2 is a schematic view of a first lifting mechanism according to a first embodiment;
FIGS. 3 and 4 are schematic views of a first elevating mechanism (excluding a driving block) in the first embodiment;
FIG. 5 is a schematic view of a second lifting mechanism and a pulling mechanism according to the first embodiment;
FIGS. 6-9 are schematic views illustrating a mold closing state of a die-cut stamping die according to an embodiment;
fig. 10 is a schematic view of a second lifting mechanism and a pulling mechanism in the second embodiment.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more apparent, the present invention is further described in detail below with reference to the embodiments.
Example one
Shown in fig. 1 is a die cutting and stamping die, the upper die comprises an upper die holder 10, an upper backing plate 20, an upper clamping plate 30 and a stripper plate 40 which are arranged in sequence from top to bottom, the stripper plate 40 is fixedly connected with the upper clamping plate 30, and the lower die comprises a lower die plate 50, a lower backing plate 60 and a lower die holder 70 which are arranged in sequence from top to bottom.
The inside material pulling device that is provided with of mould, it mainly includes first hook piece 81, second hook piece 82, first elevating system, second elevating system and material pulling mechanism. The first hook block 81 and the second hook block 82 are provided with two blocks, and are respectively located on two sides of the material belt.
The first lifting mechanism comprises a first wedge 831, a driving block 832 and a sliding block 833, the driving block is fixed in the lower template 50, five mounting holes are formed in the driving block along the width direction of the material belt, a first connecting block 834 is arranged in the mounting hole A and the mounting hole E, the two first hook blocks 81 are respectively arranged in the mounting hole B and the mounting hole D, a third connecting block 835 is arranged in the mounting hole C, and a first connecting rod 837 fixedly arranged in the first connecting block 834 is fixedly connected with the first hook blocks 81 and the third connecting block 835; the side wall of the driving block is provided with a first longitudinal strip hole 838 communicated with the mounting holes on the two sides, and the end part of the first connecting rod is positioned in the first longitudinal strip hole. An equal-height bolt of a back lock in the lower die holder 70 is fixedly connected with a third connecting block 835, a first spring 836 is sleeved on the equal-height bolt, the end part of the first connecting rod is positioned at the lowest end of the first longitudinal strip hole 838, and the first hook block 81 is locked in the mounting hole under the condition that the third connecting block 835 is not pushed upwards.
The bottom of the driving block 832 is provided with a sliding slot 8321 corresponding to each first hook block 81, and the top of the sliding block 833 which is slidably connected in the sliding slot 8321 is movably connected with the first connecting block 834 through a slope structure. The first inclined wedge 831 is installed in the upper die, the rod part of the first inclined wedge 831 penetrates through the stripper plate 40, the end part of the first inclined wedge is located in the upper clamping plate 30, and the elastic mechanism 90 arranged in the upper die holder 10 is connected with the end part; an elastic block 839 is arranged at the position of the lower template 50 corresponding to the first inclined wedge 831, the bottom of the elastic block is elastically connected with the lower cushion plate 60, and a convex block 8331 extending to the outside of the driving block from the sliding block 833 is movably connected with the bottom of the elastic block through an inclined plane structure. The side of the slider opposite the cam is provided with a first return spring 8332 connected to the drive block 832. Preferably, the bottom side of the elastic block 839 is provided with a slot 8391 adapted to the bump, the top wall of the slot corresponding to the slider is provided with a first inclined surface 8392, the top of the bump is provided with a second inclined surface 8332, and the first inclined surface and the second inclined surface form an inclined surface structure. The top of slider 833 is provided with second inclined plane first 8333, and the bottom of first connecting block 834 is provided with second inclined plane second 8341 and passes through inclined plane structure swing joint, and second inclined plane first constitutes the inclined plane structure with second inclined plane second.
The material pulling mechanism comprises a second inclined wedge 841, a material pulling block 842 and a roller 843, the material pulling block 842 is connected in the lower template 50 in a sliding manner, two sides of the material pulling block 842 are respectively provided with the roller 843, the second inclined wedge 841 is fixed in an upper die, the rod part of the second inclined wedge 841 penetrates through the upper clamping plate and the stripper plate, and the top part of the second inclined wedge 841 is connected with an equal-height sleeve 100 arranged in the upper die holder; the bottom insertion end of the second wedge 841 is provided with a straight surface 8411 and an inclined surface 8412 positioned above the straight surface, the straight surface is connected with the inclined surface through an arc surface 8413, after the second wedge 841 descends in a slanting manner, the straight surface is firstly contacted with the roller 843, the material pulling block 842 at the moment is not horizontally moved, and after the inclined surface is contacted with the roller 843, the material pulling block 842 moves towards the direction far away from the first hook block 81. The side of the pulling block 842 opposite to the first hook block 81 is provided with a transverse return spring 845, and after the second slanting wedge 841 ascends, the return spring drives the pulling block 842 to return.
A second connecting block 846 is arranged in the pulling block 842, the two second hook blocks 82 are arranged in the pulling block, and a second connecting rod fixedly arranged in the second connecting block is fixedly connected with the second hook blocks 82; the side wall of the pulling block is provided with a second longitudinal bar hole 848, and the end part of the second connecting rod is positioned in the second longitudinal bar hole. The bottom of the second connecting block 846 is provided with a second spring 849, when the second connecting block 846 is not subjected to an external force, the second connecting rod is located at the highest point of the second longitudinal strip hole 848, and the second hook block protrudes out of the pulling block 842.
The second lifting mechanism includes a pressure lever 851 installed in the upper mold, and the installation manner of the pressure lever in the upper mold is consistent with that of the first wedge 831, and elastic mechanisms 90 are provided, which are not described herein. The pressing rod moves downwards, the bottom of the pressing rod is movably connected with the second connecting rod 847, and the second hook block 82 is pressed into the pulling block 842 and separated from the material belt.
The working principle of the device is described below with reference to fig. 6-9:
1. in the mold opening state, the material belt has finished one-step feeding, the second hook block 82 extends into the positioning hole of the material belt under the spring force of the second spring, and the first hook block 81 retracts into the driving block 832 under the spring force of the first spring 836;
2. the upper die moves downwards to close the die, the second inclined wedge 841 contacts the roller 843, the pressure rod contacts the second connecting rod 847 downwards, the first inclined wedge 831 contacts the elastic block downwards, and the second hook block 82 is separated from the material belt before the inclined plane of the second inclined wedge 841 contacts the roller 843; when the second hook block 82 is separated from the material belt, the first hook block 81 is pushed by the sliding block 833 to ascend and insert into the material belt;
3. the upper die continues to descend to close the die, the inclined surface of the second inclined wedge 841 is contacted with the roller 843 to drive the pulling block 842 to move leftwards, and after the second connecting rod 847 is separated from the pressing rod, the second hook block 82 extends out to be inserted into the other group of positioning holes of the material belt under the spring force of the spring II;
4. the upper die and the lower die are completely closed, and the first hook block 81 and the second hook block 82 are inserted into the positioning holes of the material belt;
5. the upper die moves upwards, the die is opened, the first inclined wedge 831 is separated from the elastic block firstly, and the first hook block 81 is separated from the material belt before the material pulling block 842 is reset;
6. with the continuous upward movement of the upper die, the inclined surface of the second inclined wedge 841 is separated from the roller 843, the material pulling block 842 is displaced rightwards under the spring force of the return spring, and the second hook block 82 drives the material belt to move rightwards to complete one material pulling action.
In conclusion, the device realizes the material pulling action in the mold opening process, converts the up-and-down motion of the mold into the horizontal reciprocating motion of the second hook block 82, and ensures that the stepping material pulling process becomes more stable through the matching of the two hook blocks.
Example two
The present embodiment is based on the first embodiment.
Referring to fig. 10, two sides of the material pulling block 842 in the lower mold are respectively provided with a locking mechanism.
Specifically, the locking mechanism includes a fixing block 1101 and a locking block 1102, the fixing block is fixed in the lower template 50, the locking block is transversely disposed between the second wedge 841 and the fixing block, and a spring four is installed between the locking block and the fixing block. One surface of the insertion end of the second wedge 841, which corresponds to the locking block, is a connecting surface, the side surface of the second wedge 841 is provided with a locking groove 8414, a convex block 8415 is arranged between the connecting surface and the locking groove, and the upper and lower end surfaces of the convex block are provided with guide inclined surfaces. After the second wedge 841 is descended, the convex block is inserted into the locking groove, so that the pulling block 842 is prevented from moving.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A thin material strip material in-mold pulling device is characterized by being installed inside a stamping die and mainly comprising a first hook block, a second hook block, a first lifting mechanism, a second lifting mechanism and a pulling mechanism;
the first hook block and the second hook block are respectively provided with two blocks which are respectively positioned at two sides of the material belt;
the first lifting mechanism comprises a first inclined wedge, a driving block and a sliding block, the driving block is fixed in the lower die, the two first hook blocks are vertically arranged in the driving block, two first connecting blocks are arranged in the driving block, and a first connecting rod fixedly arranged in the first connecting blocks is fixedly connected with the first hook blocks; the side wall of the driving block is provided with a first longitudinal strip hole, and the end part of the first connecting rod is positioned in the first longitudinal strip hole; the bottom of the driving block is provided with a sliding chute corresponding to each first connecting block, the top of a sliding block which is in sliding connection in the sliding chute is movably connected with the bottom of the first connecting block through an inclined plane structure, the first inclined wedge is arranged in the upper die, an elastic block is arranged in the lower die corresponding to the first inclined wedge, and a convex block extending to the outside of the driving block is movably connected with the bottom of the elastic block through an inclined plane structure;
the material pulling mechanism comprises a second inclined wedge, a material pulling block and rollers, the material pulling block is connected in the lower template in a sliding mode, the rollers are arranged on two sides of the material pulling block respectively, the second inclined wedge is fixed in the upper die, an inclined plane arranged at the bottom of the second inclined wedge is in movable contact with the rollers, and the second inclined wedge drives the material pulling block to move towards the direction far away from the first hook block in a downward mode; a transverse reset spring is arranged on one side, opposite to the first hook block, of the material pulling block; a second connecting block is arranged in the pulling block, and a second spring is arranged at the bottom of the second connecting block; the two second hook blocks are arranged in the material pulling block, and a second connecting rod fixedly arranged in the second connecting block is fixedly connected with the second hook blocks; the side wall of the pulling block is provided with a second longitudinal strip hole, and the end part of the second connecting rod is positioned in the second longitudinal strip hole;
the second lifting mechanism comprises a pressing rod, the pressing rod is installed in the upper die, and the bottom of the pressing rod is movably connected with the second connecting rod.
2. The thin material strip material in-mold pulling device as claimed in claim 1, wherein a third connecting block fixedly connected with the first connecting rod is installed in the driving block, an equal-height bolt of an inverted lock in the lower die holder is fixedly connected with the third connecting block, and a first spring is sleeved on the equal-height bolt.
3. The thin material strip in-mold pulling device according to claim 1, wherein a slot adapted to the protrusion is formed in a bottom side of the elastic block, a first inclined plane i is formed in a position of a top wall of the slot corresponding to the sliding block, a first inclined plane ii is formed in a top of the protrusion, and the first inclined plane i and the first inclined plane ii form the inclined plane structure.
4. A thin material strip in-mold pulling apparatus as claimed in claim 3, wherein a side of the slider opposite to the protrusion is provided with a return spring connected to the driving block.
5. The in-mold pulling apparatus for thin material strip as claimed in claim 1, wherein a locking mechanism is provided in each of two sides of the pulling block in the lower mold; the locking mechanism comprises a fixed block and a locking block, the fixed block is fixed in the lower die, the locking block is transversely arranged between the second inclined wedge and the fixed block, and a spring IV is arranged between one side of the locking block, which is opposite to the material pulling block, and the fixed block; the side of the second wedge is provided with a locking groove, one side of the second wedge, which corresponds to the locking block in the insertion end, is a connecting surface, the side of the second wedge is provided with a locking groove, a convex block is arranged between the connecting surface and the locking groove, and the upper end surface and the lower end surface of the convex block are provided with guide inclined surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211212572.7A CN115488253A (en) | 2022-09-29 | 2022-09-29 | Thin material strip material in-mold pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211212572.7A CN115488253A (en) | 2022-09-29 | 2022-09-29 | Thin material strip material in-mold pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115488253A true CN115488253A (en) | 2022-12-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211212572.7A Pending CN115488253A (en) | 2022-09-29 | 2022-09-29 | Thin material strip material in-mold pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115488253A (en) |
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2022
- 2022-09-29 CN CN202211212572.7A patent/CN115488253A/en active Pending
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