CN214349073U - Pile up tensile mould of bottom - Google Patents
Pile up tensile mould of bottom Download PDFInfo
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- CN214349073U CN214349073U CN202023156204.4U CN202023156204U CN214349073U CN 214349073 U CN214349073 U CN 214349073U CN 202023156204 U CN202023156204 U CN 202023156204U CN 214349073 U CN214349073 U CN 214349073U
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Abstract
The utility model discloses a stretching die for stacking bottom covers, which comprises a lower die and an upper die, wherein the upper die is arranged right above the lower die; the lower die comprises a lower die base, a lower die and a lower shear die, the lower die and the lower shear die are both arranged on the lower die base, and the lower shear die is positioned outside the circumferential direction of the lower die; the lower die comprises a lower die core, an insert die, a chamfering ring, a lower material pressing ring and an elastic piece, wherein the lower die core is arranged in the middle of the lower die base, the insert die is arranged in the middle of the lower die core, the chamfering ring is positioned outside the insert die in the circumferential direction, and the lower end of the chamfering ring is connected with the lower die core; an annular channel is formed between the inner side wall of the chamfering ring and the outer side wall of the insert die, the lower end of the elastic piece is mounted on the lower die core, and the upper end of the elastic piece is exposed in the annular channel; the lower pressing ring is arranged in the annular channel, and the lower end of the lower pressing ring is in contact fit with the upper end of the elastic piece. The bottom cover can be positioned by the stretching die for stacking the bottom cover, the bottom cover material is effectively prevented from protruding downwards to deform, and the product quality is improved.
Description
Technical Field
The utility model relates to a mould processing technology field of easy-open end especially relates to a pile up tensile mould of bottom.
Background
The traditional easy open can is formed by pressing a top cover, a bottom cover and side wall plates, wherein the top cover and the bottom cover of the easy open can are called as the easy open cover for short. In general, stretch-forming is performed using a stretch-forming die, and cutting is performed directly on the stretch-forming die after the stretch-forming. The existing stretch forming die comprises a lower die and an upper die, wherein the upper die is arranged right above the lower die; the upper die comprises an upper die base, an upper die, an upper shearing die, an upper stripping die and a material returning rod, wherein the upper die, the upper shearing die and the upper stripping die are all arranged on the upper die base, the upper shearing die and the upper stripping die are sequentially arranged outside the circumferential direction of the upper die, and the material returning rod is arranged in the upper die; the lower die comprises a lower die base, a lower die and a lower shear die, the lower die and the lower shear die are both arranged on the lower die base, and the lower shear die is positioned outside the circumferential direction of the lower die; as shown in fig. 4, the lower mold 02 includes a lower core 021, an insert mold 022, and a chamfer ring 023, the lower core 021 is installed in the middle of the lower die holder, the insert mold 022 is installed in the middle of the lower core 021, the chamfer ring 023 is located outside in the circumferential direction of the insert mold 022, and the lower end of the chamfer ring 023 is connected with the lower core 021, and an annular groove 024 is provided between the upper end of the chamfer ring 023 and the upper end of the insert mold 022. Generally, the bottom cover 01 is formed by stamping the upper die and the lower die 02, the annular groove 024 is formed between the upper end of the chamfer ring 023 and the upper end of the insert die 022, part of the material of the bottom cover 01 is located in the annular groove 024, and in the stamping process of the upper die and the lower die 02, the material of the bottom cover 01 in the annular groove 024 has round corners and cannot be fixed, so that part of the material of the bottom cover 01 is prone to bulge and deform towards the gap 025 in the annular groove 024, and defective products are generated.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a pile up tensile mould of bottom, this kind of tensile mould of piling up the bottom can fix a position the bottom, effectively prevents bottom material lower convex deformation, improves the quality of product.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a stretching die for stacking bottom covers comprises a lower die and an upper die, wherein the upper die is arranged right above the lower die; the upper die comprises an upper die base, an upper die, an upper shearing die, an upper stripping die and a material returning rod, wherein the upper die, the upper shearing die and the upper stripping die are all arranged on the upper die base, the upper shearing die and the upper stripping die are sequentially arranged outside the circumferential direction of the upper die, and the material returning rod is arranged in the upper die; the lower die comprises a lower die base, a lower die and a lower shear die, the lower die and the lower shear die are both arranged on the lower die base, and the lower shear die is positioned outside the circumferential direction of the lower die; the bed die includes mold core, insert mould and chamfer ring down, and the middle part at the die holder is installed to the mold core down, and the insert mould is installed in the middle part of mold core down, and the chamfer ring is in the circumference outside of insert mould to the lower extreme and the lower mold core of chamfer ring are connected its characterized in that: the lower die further comprises a lower material pressing ring and an elastic piece; an annular channel is formed between the inner side wall of the chamfering ring and the outer side wall of the insert die, the lower end of the elastic piece is mounted on the lower die core, and the upper end of the elastic piece is exposed in the annular channel; the lower pressing ring is arranged in the annular channel, and the lower end of the lower pressing ring is in contact fit with the upper end of the elastic piece.
An annular channel is arranged between the inner side wall of the chamfering ring and the outer side wall of the insert die, an elastic piece is arranged on the lower die core, the lower pressing ring is arranged in the annular channel, the lower end of the lower pressing ring is in contact fit with the upper end of the elastic piece, the upper end of the elastic piece is in contact with the lower end of the lower pressing ring in the stamping process of the upper die and the lower die, and the elastic piece plays a role in supporting the lower pressing ring; the supported lower pressing ring is directly contacted with the bottom cover in the stamping process, always props against the bottom cover material in the annular channel, plays a role in positioning the bottom cover, effectively prevents the bottom cover material from protruding downwards to deform, and improves the quality of products.
As a preferred scheme of the present invention, the elastic member includes at least three expansion springs, the lower mold core is provided with at least three strip-shaped grooves with upward openings, each strip-shaped groove is uniformly distributed on the circumference where the annular channel is located, the number of the strip-shaped grooves is the same as that of the expansion springs and corresponds to that of the expansion springs one by one, each expansion spring is located in the corresponding strip-shaped groove, and the upper end of each expansion spring is exposed in the annular channel; the lower end of the lower material pressing ring is in contact fit with the upper end of each telescopic spring. The elastic piece is set to be an expansion spring, the lower end of the lower material pressing ring is in contact fit with the upper end of each expansion spring in the stamping process of the upper die and the lower die, and each expansion spring plays a role in supporting the lower material pressing ring.
As a preferred scheme of the utility model, the upper end surface of the lower pressing ring comprises a pressing plane and a pressing convex ring, and the pressing convex ring is positioned at the inner side of the pressing plane; the outer side surface of the material pressing convex ring is an inclined surface which gradually inclines upwards from outside to inside, and the upper end surface of the material pressing convex ring is positioned at the highest position of the inclined surface. The upper end face of the lower pressing ring is designed to be in natural transition of gradually inclining upwards between the pressing plane and the pressing convex ring, so that the surface of the punched bottom cover is smooth and has no edges and corners. The upper end surface (namely the highest position of the inclined surface) of the material pressing convex ring can fill the gap between the bottom cover and the annular channel in the stamping process, so that the bottom cover material in the annular channel can be better fixed.
As the utility model discloses an optimal scheme, the inside wall lower extreme of material ring is equipped with the snap ring down, the lateral wall lower extreme of insert mould is equipped with the ring channel, and the snap ring is in the ring channel. The snap ring on the inner side wall of the lower pressing ring is positioned in the annular groove at the lower end of the outer side wall of the insert die, and the snap ring is in snap fit with the groove bottom of the annular groove before stamping to prevent the lower pressing ring from being separated from the annular channel. And in the stamping process of the upper die and the lower die, the telescopic spring is pressed to contract, the lower material pressing ring moves downwards, and the clamping ring moves downwards in the annular groove along with the movement of the lower material pressing ring.
Compared with the prior art, the utility model, have following advantage:
the bottom cover can be positioned by the stretching die for stacking the bottom cover, the bottom cover material is effectively prevented from protruding downwards to deform, and the product quality is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of B in FIG. 2;
fig. 4 is a schematic structural diagram of a lower mold in the background art of the present invention.
Detailed Description
The following further describes the preferred embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 3, the drawing die for stacking bottom caps in the present embodiment includes a lower die 1 and an upper die 2, the upper die being disposed directly above the lower die 1; the upper die 2 comprises an upper die base 21, an upper die 22, an upper shear die 23, an upper stripping die 24 and a material returning rod 25, wherein the upper die 22, the upper shear die 23 and the upper stripping die 24 are all arranged on the upper die base 21, the upper shear die 23 and the upper stripping die 24 are sequentially arranged outside the circumferential direction of the upper die 22, and the material returning rod 25 is arranged in the upper die 22; the lower die 1 comprises a lower die base 11, a lower die 12 and a lower shear die 13, wherein the lower die 12 and the lower shear die 13 are both arranged on the lower die base 11, and the lower shear die 13 is positioned outside the circumferential direction of the lower die 12; the lower die 12 comprises a lower die core 121, an insert die 122, a chamfer ring 123, a lower blanking ring 124 and an elastic piece 125, wherein the lower die core 121 is arranged in the middle of the lower die holder 11, the insert die 122 is arranged in the middle of the lower die core 121, the chamfer ring 123 is positioned outside the insert die 122 in the circumferential direction, and the lower end of the chamfer ring 123 is connected with the lower die core 121; an annular channel 126 is formed between the inner side wall of the chamfer ring 123 and the outer side wall of the insert die 122, the lower end of an elastic piece 125 is installed on the lower die core 121, and the upper end of the elastic piece 125 is exposed in the annular channel 126; the lower stripper ring 124 is disposed in the annular channel 126 and the lower end of the lower stripper ring 124 is in contact engagement with the upper end of the resilient member 125.
The elastic member 125 comprises three telescopic springs 1251, the lower die core 121 is provided with three strip-shaped grooves 1211 with upward openings, the strip-shaped grooves 1211 are uniformly distributed on the circumference where the annular channel 126 is located, the number of the strip-shaped grooves 1211 is the same as that of the telescopic springs 1251, the strip-shaped grooves 1211 correspond to one another, the telescopic springs 1251 are located in the corresponding strip-shaped grooves 1211, and the upper ends of the telescopic springs 1251 are exposed in the annular channel 126; the lower end of the lower stripper ring 124 is in contact engagement with the upper end of each of the springs 1251. The elastic member 125 is provided as a telescopic spring 1251, so that the lower end of the lower pressing ring 124 is in contact fit with the upper end of each telescopic spring 1251 during the stamping process of the upper die 22 and the lower die 12, and each telescopic spring 1251 plays a role in supporting the lower pressing ring 124.
The upper end face of the lower pressing ring 124 comprises a pressing plane 1241 and a pressing convex ring 1242, and the pressing convex ring 1242 is positioned at the inner side of the pressing plane 1241; the outer side surface of the pressing convex ring 1242 is an inclined surface 1243 which gradually inclines upwards from outside to inside, and the upper end surface of the pressing convex ring 1242 is located at the highest position of the inclined surface 1243. The upper end surface of the lower pressing ring 124 is designed to be a natural transition of the pressing plane 1241 and the pressing convex ring 1242 gradually inclining upwards, so as to make the surface of the punched bottom cover 3 smoother and without edges and corners. The upper end surface (i.e. the highest position of the inclined surface 1243) of the material pressing convex ring 1242 can fill the gap between the bottom cover 3 and the annular channel 126 in the punching process, so as to better fix the material of the bottom cover 3 in the annular channel 126.
The lower end of the inner side wall of the lower pressing ring 124 is provided with a clamping ring 1244, the lower end of the outer side wall of the insert module 122 is provided with an annular groove 1221, and the clamping ring 1244 is positioned in the annular groove 1221. The snap ring 1244 on the inner side wall of the lower blanking ring 124 is positioned in the annular groove 1221 at the lower end of the outer side wall of the insert die 122, and the snap ring 1244 is in snap fit with the groove bottom of the annular groove 1221 before punching to prevent the lower blanking ring 124 from being separated from the annular channel 126. In the stamping process of the upper die and the lower die, the extension spring 1251 is pressed to contract, the lower pressing ring 124 moves downwards, and the snap ring 1244 moves downwards in the annular groove 1221 along with the movement of the lower pressing ring 124.
An annular channel 126 is arranged between the inner side wall of the chamfer ring 123 and the outer side wall of the insert die 122, an elastic piece 125 is arranged on the lower die core 121, the lower pressing ring 124 is arranged in the annular channel 126, the lower end of the lower pressing ring 124 is in contact fit with the upper end of the elastic piece 125, the upper end of the elastic piece 125 is in contact with the lower end of the lower pressing ring 124 in the stamping process of the upper die 22 and the lower die 12, and the elastic piece 125 plays a role in supporting the lower pressing ring 124; the supported lower pressing ring 124 is directly contacted with the bottom cover 3 in the stamping process, and always props against the bottom cover 3 material in the annular channel 126, so that the bottom cover 3 is positioned, the bottom cover 3 material is effectively prevented from protruding downwards and deforming, and the product quality is improved.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. A stretching die for stacking bottom covers comprises a lower die and an upper die, wherein the upper die is arranged right above the lower die; the upper die comprises an upper die base, an upper die, an upper shearing die, an upper stripping die and a material returning rod, wherein the upper die, the upper shearing die and the upper stripping die are all arranged on the upper die base, the upper shearing die and the upper stripping die are sequentially arranged outside the circumferential direction of the upper die, and the material returning rod is arranged in the upper die; the lower die comprises a lower die base, a lower die and a lower shear die, the lower die and the lower shear die are both arranged on the lower die base, and the lower shear die is positioned outside the circumferential direction of the lower die; the bed die includes mold core, insert mould and chamfer ring down, and the middle part at the die holder is installed to the mold core down, and the insert mould is installed in the middle part of mold core down, and the chamfer ring is in the circumference outside of insert mould to the lower extreme and the lower mold core of chamfer ring are connected its characterized in that: the lower die further comprises a lower material pressing ring and an elastic piece; an annular channel is formed between the inner side wall of the chamfering ring and the outer side wall of the insert die, the lower end of the elastic piece is mounted on the lower die core, and the upper end of the elastic piece is exposed in the annular channel; the lower pressing ring is arranged in the annular channel, and the lower end of the lower pressing ring is in contact fit with the upper end of the elastic piece.
2. The drawing die for stacking bottom covers as claimed in claim 1, wherein: the elastic part comprises at least three telescopic springs, the lower mold core is provided with at least three strip-shaped grooves with upward openings, the strip-shaped grooves are uniformly distributed on the circumference where the annular channel is located, the number of the strip-shaped grooves is the same as that of the telescopic springs and corresponds to that of the telescopic springs one by one, the telescopic springs are located in the corresponding strip-shaped grooves, and the upper ends of the telescopic springs are exposed out of the annular channel; the lower end of the lower material pressing ring is in contact fit with the upper end of each telescopic spring.
3. The drawing die for stacking bottom covers as claimed in claim 1, wherein: the upper end face of the lower pressing ring comprises a pressing plane and a pressing convex ring, and the pressing convex ring is positioned on the inner side of the pressing plane; the outer side surface of the material pressing convex ring is an inclined surface which gradually inclines upwards from outside to inside, and the upper end surface of the material pressing convex ring is positioned at the highest position of the inclined surface.
4. The drawing die for stacking bottom covers as claimed in claim 1, wherein: the lower end of the inner side wall of the lower pressing ring is provided with a clamping ring, the lower end of the outer side wall of the insert die is provided with an annular groove, and the clamping ring is located in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023156204.4U CN214349073U (en) | 2020-12-24 | 2020-12-24 | Pile up tensile mould of bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023156204.4U CN214349073U (en) | 2020-12-24 | 2020-12-24 | Pile up tensile mould of bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214349073U true CN214349073U (en) | 2021-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023156204.4U Active CN214349073U (en) | 2020-12-24 | 2020-12-24 | Pile up tensile mould of bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214349073U (en) |
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2020
- 2020-12-24 CN CN202023156204.4U patent/CN214349073U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230714 Address after: 515000 No.6 Nanqiang Road, nanshanwan Industrial Park, Haojiang District, Shantou City, Guangdong Province Patentee after: British Union Metal Technology (Shantou) Co.,Ltd. Address before: 515000 middle section of Danan Road, Haojiang District, Shantou City, Guangdong Province Patentee before: GUANGDONG ENPACK PACKAGING Co.,Ltd. |
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| TR01 | Transfer of patent right |