CN113751586A - One-step forming automatic production line for double-bead elastic sheet - Google Patents
One-step forming automatic production line for double-bead elastic sheet Download PDFInfo
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- CN113751586A CN113751586A CN202111129623.5A CN202111129623A CN113751586A CN 113751586 A CN113751586 A CN 113751586A CN 202111129623 A CN202111129623 A CN 202111129623A CN 113751586 A CN113751586 A CN 113751586A
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- 239000011324 bead Substances 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000004579 marble Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000000750 progressive effect Effects 0.000 claims abstract description 17
- 238000007667 floating Methods 0.000 claims description 60
- 230000007246 mechanism Effects 0.000 claims description 48
- 238000005452 bending Methods 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 33
- 238000003825 pressing Methods 0.000 claims description 29
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims 2
- 239000012634 fragment Substances 0.000 abstract description 6
- 238000007493 shaping process Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
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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
- B21D37/08—Dies with different parts for several steps in a process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- Engineering & Computer Science (AREA)
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to an automatic production line for one-step forming of a double-bead elastic sheet. The front drawing station and the rear drawing station arranged on the progressive die are utilized to form the front marble and the rear marble of the double-marble elastic sheet in the same progressive die, so that different dies do not need to be replaced, clamping of different dies is not needed, the processing time is saved, the processing efficiency is improved, and the processing precision can be ensured. In addition, through making the back stretch terrace die and the back stretch die of back stretch forming die unit do the motion that is close to the preceding stretch forming die unit that has accomplished tensile work in step at the in-process of tensile belting, in order to avoid back stretch forming die unit to pull the belting between back stretch forming die unit and the preceding stretch forming die unit in the tensile work process, and cause the belting fracture, its reasonable in design, be convenient for realize preceding marble and the back marble of same mould shaping double-bead shell fragment that upgrades.
Description
Technical Field
The invention relates to an automatic production line for one-step forming of a double-bead elastic sheet.
Background
The double-bead elastic sheet is mainly used for positioning the pipe fitting. The double-bead shrapnel comprises a shrapnel body which is approximately V-shaped and is provided with two elastic arms and two positioning beads arranged on one elastic arm. The existing processing of the double-bead elastic sheet generally needs to be provided with a plurality of sets of mutually independent dies, and after the two sets of independent dies are processed, the two positioning beads are moved to a bending die for bending and forming. The machining process is carried out by clamping in a plurality of sets of different dies, so that the machining efficiency is relatively low, and the machining precision is difficult to guarantee due to the influence of clamping operation.
Disclosure of Invention
The invention aims to provide an automatic one-step forming production line for a double-bead elastic sheet, which comprises a progressive die, wherein the progressive die is provided with a front stretching station and a rear stretching station, the front stretching station is used for forming front beads of the double-bead elastic sheet on a strip material, the rear stretching station is used for forming rear beads of the double-bead elastic sheet on the strip material, and the rear stretching station and the front stretching station are distributed at intervals along the conveying direction of the strip material; the progressive die includes an upper die portion and a lower die portion; the upper die part comprises a front stretching male die, a rear stretching male die and an upper die frame driven by a press machine to move downwards, wherein the front stretching male die and the rear stretching male die are both arranged in the upper die frame to move downwards along with the upper die frame, the front stretching male die is positioned on a front stretching station, and the rear stretching male die is positioned on a rear stretching station; the lower die part comprises a front stretching female die, a rear stretching female die and a lower die frame, wherein the front stretching female die and the rear stretching female die are arranged in the lower die frame, the front stretching female die is positioned on a front stretching station and forms a front stretching forming die unit of a front marble for forming the double-bead elastic sheet on the belt material with a front stretching male die, and the rear stretching female die is positioned on a rear stretching station and forms a rear stretching forming die unit of a rear marble for forming the double-bead elastic sheet on the belt material with the rear stretching male die; the rear stretching male die can be arranged in the upper die frame in a translation manner along the conveying direction of the strip; the rear stretching female die can be installed in the lower die frame in a translation mode along the conveying direction of the strip; an upper driving mechanism for driving the rear stretching male die to move close to the front stretching male die along the conveying direction of the strip is arranged in the upper die frame; the lower die carrier is internally provided with a lower driving mechanism which is used for driving the rear stretching female die to synchronously move close to the front stretching female die with the rear stretching male die along the conveying direction of the strip.
The front drawing station and the rear drawing station arranged on the progressive die are utilized to form the front marble and the rear marble of the double-marble elastic sheet in the same progressive die, so that different dies do not need to be replaced, clamping of different dies is not needed, the processing time is saved, the processing efficiency is improved, and the processing precision can be ensured. In addition, through making the back stretch terrace die and the back stretch die of back stretch forming die unit do the motion that is close to the preceding stretch forming die unit that has accomplished tensile work in step at the in-process of tensile belting, in order to avoid back stretch forming die unit to pull the belting between back stretch forming die unit and the preceding stretch forming die unit in the tensile work process, and cause the belting fracture, its reasonable in design, be convenient for realize preceding marble and the back marble of same mould shaping double-bead shell fragment that upgrades.
Drawings
FIG. 1 shows a front view of a machined double-bead shrapnel of the present invention;
FIG. 2 shows a perspective view of a machined double bead shrapnel of the present invention;
FIG. 3 shows a schematic structural diagram of the present invention;
FIG. 4 shows a schematic structural view of the progressive die of the present invention;
FIG. 5 is a schematic view of the parts of FIG. 4 after they have been exploded;
fig. 6 shows a schematic diagram after the upper die carrier is driven to move downwards to complete a front section stroke on the basis of fig. 4;
FIG. 7 is a schematic view showing the upper mold frame being driven further in the depressing movement to complete the latter stroke on the basis of FIG. 6;
fig. 8 shows a schematic drawing of a web section between a rear stretch-forming die unit and a front stretch-forming die unit being pulled.
Reference numerals:
10 double-ball shrapnel, 101 front marble and 102 rear marble;
20, an upper die part, a 201 front stretching male die, a 202 rear stretching male die, a 203 upper die frame, a 204 floating plate, a 205 through hole, a 206 upper driving wedge, a 207 floating elastic resetting mechanism, a 208 male die elastic mechanism, a 209 cutter, a 210 bending male die, 211 a floating plate inclined plane and 212 upper driving wedge inclined plane;
30 lower die parts, 301 front stretching female die, 302 rear stretching female die, 303 lower die frame, 304 sliding plate, 305 lower driving wedge, 306 inclined plane of sliding plate, 307 lower driving wedge inclined plane, 308 wedge elastic reset mechanism and 309 bending female die;
40 feeding mechanism.
Detailed Description
The present application is further described below with reference to the accompanying drawings.
An automatic one-step forming production line for a double-bead shrapnel is used for processing a double-bead shrapnel 10 shown in figures 1 and 2, and the double-bead shrapnel comprises a front marble 101 and a rear marble 102.
As shown in fig. 4 and 5, the automatic production line for one-step forming of the double-bead elastic sheet comprises a progressive die, wherein the progressive die is provided with a front stretching station for forming a front bead 101 of the double-bead elastic sheet on the strip material and a rear stretching station for forming a rear bead 102 of the double-bead elastic sheet on the strip material, the rear stretching station and the front stretching station 1 are distributed at intervals along the conveying direction a of the strip material, and in the embodiment, the front stretching station is positioned in front of the rear stretching station along the conveying direction of the strip material;
the progressive die includes an upper die portion 20 and a lower die portion 30;
the upper die part 20 comprises a front stretching male die 201, a rear stretching male die 202 and an upper die frame 203 driven by a press (not shown in the figure) to move downwards, the front stretching male die 201 and the rear stretching male die 202 are both arranged in the upper die frame 203 to move downwards along with the upper die frame 203, the front stretching male die 201 is positioned on a front stretching station, and the rear stretching male die 202 is positioned on a rear stretching station;
the lower die part 30 comprises a front stretching female die 301, a rear stretching female die 302 and a lower die frame 303, wherein the front stretching female die 301 and the rear stretching female die 302 are both arranged in the lower die frame 303, the front stretching female die 301 is positioned on a front stretching station and forms a front stretching forming die unit of a front marble 101 for forming a double-bead elastic sheet on a strip material with a front stretching male die 201, the rear stretching female die 302 is positioned on a rear stretching station and forms a rear stretching forming die unit of a rear marble 102 for forming the double-bead elastic sheet on the strip material with a rear stretching male die 202;
the rear stretching male die 202 can be installed in the upper die frame 203 in a translation manner along the conveying direction A of the strip;
the rear stretching female die 302 can be installed in the lower die frame 303 in a translation manner along the conveying direction A of the strip;
an upper driving mechanism for driving the rear stretching male die 202 to move close to the front stretching male die 201 along the conveying direction A of the strip is arranged in the upper die frame 203;
the lower die frame 303 is provided with a lower driving mechanism for driving the rear stretching female die 302 to move closer to the front stretching female die 301 in the belt conveying direction a in synchronization with the rear stretching male die 202.
This embodiment utilizes the preceding stretching station and the back stretching station that the mould set up upgrades in order to realize in the same mould that upgrades the preceding marble and the back marble of the two pearl shell fragments of shaping, need not to change different moulds, need not to carry out the clamping of different moulds, not only saves process time, improves machining efficiency, can guarantee the machining precision moreover.
In addition, through making the back stretch terrace die and the back stretch die of back stretch forming die unit do the motion that is close to the preceding stretch forming die unit that has accomplished tensile work in step at the in-process of tensile belting, in order to avoid back stretch forming die unit to pull the belting between back stretch forming die unit and the preceding stretch forming die unit in the tensile work process, and cause the belting fracture, its reasonable in design, be convenient for realize preceding marble and the back marble of same mould shaping double-bead shell fragment that upgrades.
The front stretch forming die unit and the rear stretch forming die unit sequentially stretch the belt material in one-time pressing movement stroke of the upper die frame 203;
the one-time pressing movement stroke of the upper mold frame 203 comprises a front section stroke and a rear section stroke;
the front stretching forming die unit stretches the strip material in the process of pressing down and moving the upper die frame 203 in the front section stroke;
the rear stretching forming die unit stretches the strip material in the process of pressing down the tail section stroke of the upper die frame 203;
the upper driving mechanism is set to drive the rear stretching male die 202 to move close to the front stretching male die 201 along the conveying direction A of the strip in the downward pressing movement of the tail section stroke of the upper die frame 203;
the lower driving mechanism is configured to drive the rear stretching female die 302 to move closer to the front stretching female die 301 in the conveying direction a of the strip in synchronization with the rear stretching male die 202 in the downward movement of the rear stroke of the upper die frame 203.
This technical scheme can realize can the shaping preceding marble and the back marble of two pearl shell fragments in the one-time pushing down of last die carrier moving stroke. Meanwhile, the upper driving mechanism and the lower driving mechanism are started to work when the upper die carrier performs downward pressing movement of the tail section stroke, so that the upper die carrier and the lower die carrier work synchronously with the rear stretching forming die unit, and the design is reasonable.
The upper die frame 203 is internally provided with a floating plate 204 which moves obliquely between a position far away from the far end of the male die of the front stretching male die and a position close to the near end of the male die of the front stretching male die, and the oblique movement direction of the floating plate is oblique to the conveying direction A of the strip;
the floating plate 204 is provided with a through hole 205 through which the rear stretching punch 202 passes, the axis of the through hole 205 is perpendicular to the conveying direction a of the strip, the rear stretching punch 202 passes through the through hole 205, the tilting motion of the floating plate 204 is decomposed into a partial up-and-down motion perpendicular to the conveying direction a of the strip and a partial translational motion parallel to the conveying direction a of the strip, the rear stretching punch 202 slides relative to the floating plate 204 in the partial up-and-down motion direction of the floating plate 204, and the rear stretching punch 202 is fixed relative to the floating plate 204 in the partial translational motion direction of the floating plate, so that the rear stretching punch 202 moves with the floating plate 204 in the partial translational motion direction of the floating plate 204, and the partial translational motion direction of the floating plate 204 in which the tilting motion of the floating plate 204 from the distal end position to the proximal end position of the punch is the same direction as the direction in which the rear stretching punch moves closer to the front stretching punch in the conveying direction of the strip, so that the floating plate 204 drives the rear stretching punch 202 to move close to the front stretching punch 201 along the conveying direction A of the strip when moving obliquely from the punch distal end position to the punch proximal end position;
the upper driving mechanism includes an upper driving wedge 206, the upper driving wedge 206 is fixedly installed in the upper mold frame 203, the upper driving wedge 206 and the floating plate 204 constitute a wedge mechanism, so that the upper driving wedge 206 guides the floating plate 204 to tilt;
the floating plate 204 is always abutted against the lower mold frame 303 during the downward movement of the tail section stroke of the upper mold frame 203, so that the lower mold frame 303 pushes the upper mold frame 203 during the downward movement of the tail section stroke, and the floating plate 204 is obliquely moved from the distal position of the punch to the proximal position of the punch under the guidance of the upper driving wedge 206.
The upper driving mechanism disclosed by the technical scheme uses the downward pressing movement of the upper die frame as a power source, does not need to be additionally provided with the power source, can enable the rear stretching male die to move gradually close to the front stretching male die in the downward pressing movement along with the upper die frame, and is reasonable in design.
The lower die frame 303 is provided with a sliding plate 304 which can translate between a die far end position far away from the front stretching die and a die near end position near the front stretching die, wherein the translation direction of the sliding plate 304 is parallel to the conveying direction A of the strip material, and the rear stretching die 302 is fixedly arranged on the sliding plate 304 relative to the sliding plate 304, so that the rear stretching die 302 can translate along with the sliding plate 304;
the lower driving mechanism includes a lower driving wedge 305, and the lower driving wedge 305 is installed in the lower mold frame 303 to slide up and down between a wedge upper-most position and a wedge lower-most position;
the lower driving cam 305 and the sliding plate 304 form a cam mechanism, so that the sliding plate 304 is driven to translate when the lower driving cam 305 slides up and down, wherein the sliding plate 304 is located at the distal end of the female die when the lower driving cam 305 is located at the uppermost position of the upper driving cam, and the sliding plate 304 is located at the proximal end of the female die when the lower driving cam 305 is located at the lowermost position of the lower driving cam;
the lower driving cam 305 is always abutted against the upper driving cam 206 in the downward pressing movement of the tail section stroke of the upper die carrier 203, so that the upper driving cam 206 pushes the lower driving cam 305 to slide downwards from the highest position of the upward movement of the cam to the lowest position of the downward movement of the cam in the downward pressing movement of the tail section stroke of the upper die carrier 203.
The lower driving mechanism disclosed by the technical scheme uses the downward pressing movement of the upper driving wedge (namely the upper die frame) as a power source, does not need to be additionally provided with the power source, and can enable the rear stretching female die to move gradually close to the forward stretching female die in the downward pressing movement along with the upper die frame, so that the design is reasonable.
The sliding plate 304 is provided with a sliding plate inclined surface 306, and the inclined surface 307 of the lower driving wedge is always abutted against the sliding plate inclined surface 306;
the floating plate 204 is provided with a floating plate inclined surface 211, and the inclined surface 212 of the upper driving wedge is always abutted against the floating plate inclined surface 211;
a wedge elastic reset mechanism 308 which enables the lower driving wedge 305 to always have the trend of returning to the highest upward moving position is arranged between the lower driving wedge 305 and the lower die frame 303;
a floating elastic reset mechanism 207 which enables the floating plate 204 to always have the tendency of returning to the far end position of the punch is arranged between the floating plate 204 and the upper mold frame 203;
in this embodiment, the wedge elastic resetting mechanism and the floating elastic resetting mechanism may be the existing elastic resetting mechanisms, and the wedge elastic resetting mechanism and the floating elastic resetting mechanism may be mechanisms including compression springs, for example, and are not described herein again.
The floating plate 204 is always separated from the lower die frame 303 in the downward movement of the front section stroke of the upper die frame 203, so that the floating plate 204 is always positioned at the far end position of the male die;
the lower driving cam 305 is always separated from the upper driving cam 206 in the downward movement of the front stroke of the upper mold frame, so that the lower driving cam 305 is always at the highest position on the cam.
According to the technical scheme, the resetting of the rear stretching male die and the rear stretching female die after the rear stretching work is finished can be realized by arranging the tapered wedge elastic resetting mechanism and the floating elastic resetting mechanism.
The front stretching male die 201 is gradually inserted into the front stretching female die 301 in the downward movement of the front section stroke of the upper die frame 203 to stretch the belt material to form a front marble of a double-bead elastic sheet, and the front stretching male die 201 is still relative to the front stretching female die 301 in the downward movement of the tail section stroke of the upper die frame 203 so as not to stretch the belt material any more;
the front stretching male die 201 is arranged in an upper die frame 203 in a way of sliding up and down, and a male die elastic mechanism 208 is arranged between the upper die frame 203 and the front stretching male die 201;
the front stretching male die 201 is forced by the male die elastic mechanism 208 to be still relative to the upper die frame during the downward pressing movement of the front section stroke of the upper die frame 203, so that the front stretching male die 201 is gradually inserted into the front stretching female die 301 along with the downward pressing movement of the upper die frame 203 to stretch the strip;
the front stretching punch 201 slides relative to the upper die frame 203 against the punch elastic mechanism 208 during the downward movement of the tail section stroke of the upper die frame 203, so that the front stretching punch 201 is still relative to the front stretching die 301.
This technical scheme can realize providing the required effort of the tensile belting of preceding tensile terrace die when tensile terrace die need tensile work in the front through setting up terrace die elastic mechanism, and tensile terrace die before dodging after tensile work is accomplished to tensile terrace die in the front to preceding tensile terrace die can slide and no longer move along with the upper die frame pushes down relatively, with no longer tensile belting. The design is reasonable, so that the front stretching forming die unit and the rear stretching forming die unit can realize asynchronous stretching of the strip material, namely, the front marble and the rear marble of the double-marble elastic piece can be successively stretched and formed.
The male die elastic mechanism 208 is a nitrogen spring; the cylinder of the nitrogen spring is fixedly mounted on the upper die frame 203, and the piston rod of the nitrogen spring abuts against the front drawing punch 201.
The progressive die is also provided with a cutting station for cutting off the strip material to separate the double-bead elastic sheet bodies to be bent and a bending forming station for bending the double-bead elastic sheet bodies to be bent to form the double-bead elastic sheets;
the rear stretching station, the front stretching station, the cutting station and the bending forming station are sequentially distributed at intervals along the conveying direction A of the strip;
the upper die part 20 further comprises a cutter 209 positioned on the cutting station and a bending convex die 210 positioned on the bending forming station, and the cutter 209 and the bending convex die 210 are both arranged in the upper die frame 203 to move along with the downward pressing of the upper die frame 203;
the lower die part 30 further comprises a bending female die 309 located on the bending forming station, the bending female die 309 is installed in the lower die frame 303, and the bending female die 309 is located on the bending forming station and forms a bending forming die unit with the bending male die 210 for bending the two-bead elastic sheet body to be bent.
This technical scheme reasonable in design to accomplish the forming process of two pearl shell fragments in same mould that upgrades, need not to dispose different moulds, need not to carry out the clamping of different moulds.
The automatic production line for one-step molding of the double-bead elastic sheet further comprises a feeding mechanism 40 for conveying the belt material.
The working process of the invention can be seen as follows:
as shown in fig. 4, the progressive die is in the open state, the floating plate 204 is in the punch distal position, the lower drive wedge 305 is in the upper-most position, the slide plate 304 is in the die distal position, the floating plate 204 is separated from the lower die carrier 303, and the upper drive wedge 206 is separated from the lower drive wedge 305.
As shown in fig. 6, the upper mold frame completes the downward movement of the front section stroke, the front stretch forming mold unit completes the stretching of the strip, the front marble 101 is formed, the floating plate 204 is located at the distal end of the male mold, the lower driving wedge 305 is located at the uppermost position, the sliding plate 304 is located at the distal end of the female mold, the floating plate 204 starts to abut against the lower mold frame 303, the upper driving wedge 206 starts to abut against the lower driving wedge 305, and the cutter 209 cuts the strip to separate the double-bead elastic sheet body (not shown) located in front of the cutter to be bent.
As shown in fig. 7, the upper mold frame completes the downward movement of the tail section stroke, the rear stretching mold unit completes the stretching of the strip, the rear marble 102 is formed, the floating plate 204 is located at the proximal end of the male mold, the lower driving wedge 305 is located at the lowest downward movement position, the sliding plate 304 is located at the proximal end of the female mold, and the bending mold unit completes the bending of the piece of the double-bead elastic sheet to be bent located in front of the cutter 209 to form the double-bead elastic sheet.
As shown in fig. 8, during the stretching operation of the strip by the post-stretch forming die unit, the strip section 401 between the post-stretch forming die unit and the front stretch forming die unit is pulled in a direction B opposite to the feeding direction a of the strip, which may cause the strip section 401 to break. In order to solve the technical problem of the breakage of the strip section 401, the present embodiment makes the rear stretching male die 202 and the rear stretching female die 302 of the rear stretching forming die unit synchronously move close to the front stretching forming die unit which has completed the stretching work along the direction C in the process of stretching the strip, wherein the direction C is the same direction as the conveying direction a of the strip, thereby offsetting the amount of the strip section 401 to be pulled, and avoiding the strip section 401 from being pulled.
Claims (8)
1. An automatic production line for one-step forming of a double-bead elastic sheet comprises a progressive die, wherein the progressive die is provided with a front stretching station and a rear stretching station, the front stretching station is used for forming front beads of the double-bead elastic sheet on a belt material, the rear stretching station is used for forming rear beads of the double-bead elastic sheet on the belt material, and the rear stretching station and the front stretching station are distributed at intervals along the conveying direction of the belt material;
the progressive die includes an upper die portion and a lower die portion;
the upper die part comprises a front stretching male die, a rear stretching male die and an upper die frame driven by a press machine to move downwards, wherein the front stretching male die and the rear stretching male die are both arranged in the upper die frame to move downwards along with the upper die frame, the front stretching male die is positioned on a front stretching station, and the rear stretching male die is positioned on a rear stretching station;
the lower die part comprises a front stretching female die, a rear stretching female die and a lower die frame, wherein the front stretching female die and the rear stretching female die are arranged in the lower die frame, the front stretching female die is positioned on a front stretching station and forms a front stretching forming die unit of a front marble for forming the double-bead elastic sheet on the belt material with a front stretching male die, and the rear stretching female die is positioned on a rear stretching station and forms a rear stretching forming die unit of a rear marble for forming the double-bead elastic sheet on the belt material with the rear stretching male die;
the method is characterized in that:
the rear stretching male die can be arranged in the upper die frame in a translation manner along the conveying direction of the strip;
the rear stretching female die can be installed in the lower die frame in a translation mode along the conveying direction of the strip;
an upper driving mechanism for driving the rear stretching male die to move close to the front stretching male die along the conveying direction of the strip is arranged in the upper die frame;
the lower die carrier is internally provided with a lower driving mechanism which is used for driving the rear stretching female die to synchronously move close to the front stretching female die with the rear stretching male die along the conveying direction of the strip.
2. The automatic production line for one-step forming of the double-bead elastic sheet according to claim 1, is characterized in that:
the front stretching forming die unit and the rear stretching forming die unit sequentially stretch the belt material in one-time pressing moving stroke of the upper die frame;
the one-time pressing moving stroke of the upper die frame comprises a front section stroke and a rear section stroke;
the front stretching forming die unit stretches the strip material in the process of pressing down and moving the front section of the upper die frame;
the rear stretching forming die unit stretches the strip material in the process of pressing down the tail section stroke of the upper die frame;
the upper driving mechanism is set to drive the rear stretching male die to move close to the front stretching male die along the conveying direction of the strip in the process of downward pressing movement of the tail section stroke of the upper die carrier;
the lower driving mechanism is set to drive the rear stretching female die to move close to the front stretching female die synchronously with the rear stretching male die along the conveying direction of the strip in the downward pressing movement of the tail section stroke of the upper die frame.
3. The automatic production line for one-step forming of the double-bead elastic sheet according to claim 2 is characterized in that:
the upper die frame is internally provided with a floating plate which moves obliquely between a position far away from the far end of the male die of the front stretching male die and a position close to the near end of the male die of the front stretching male die, and the oblique movement direction of the floating plate is oblique to the conveying direction of the strip;
the floating plate is provided with a through hole for a rear stretching male die to pass through, the rear stretching male die passes through the through hole to decompose the inclined motion of the floating plate into an up-and-down partial motion vertical to the conveying direction of the strip material and a translation partial motion parallel to the conveying direction of the strip material, the rear stretching male die slides relative to the floating plate in the up-down partial motion direction of the floating plate, and the rear stretching male die is fixed relative to the floating plate in the translational partial motion direction of the floating plate, so that the rear stretching male die moves along with the floating plate in the translational motion direction of the floating plate, and the translational motion direction of the floating plate which moves obliquely from the far end position of the male die to the near end position of the male die is the same as the moving direction of the rear stretching male die which moves close to the front stretching male die along the conveying direction of the strip material, so that the floating plate drives the rear stretching male die to move close to the front stretching male die along the conveying direction of the strip when moving obliquely from the far end position of the male die to the near end position of the male die;
the upper driving mechanism comprises an upper driving wedge which is fixedly arranged in the upper die frame, and the upper driving wedge and the floating plate form a wedge mechanism so that the upper driving wedge guides the floating plate to tilt;
the floating plate always abuts against the lower die frame in the downward pressing movement of the tail section stroke of the upper die frame, so that the lower die frame pushes the floating plate to move obliquely from the far end position of the male die to the near end position of the male die under the guidance of the upper driving wedge in the downward pressing movement of the tail section stroke of the upper die frame.
4. The automatic production line for one-step forming of the double-bead elastic sheet according to claim 3, is characterized in that:
the lower die frame is internally provided with a sliding plate which translates between a female die far end position far away from the front stretching female die and a female die near end position close to the front stretching female die, wherein the translation direction of the sliding plate is parallel to the conveying direction of the strip material, and the rear stretching female die is fixedly arranged on the sliding plate relative to the sliding plate so as to enable the rear stretching female die to translate along with the sliding plate;
the lower driving mechanism comprises a lower driving wedge, and the lower driving wedge is arranged in the lower die frame in a vertically sliding manner between the highest position of upward movement of the wedge and the lowest position of downward movement of the wedge;
the lower driving wedge and the sliding plate form a wedge mechanism so as to drive the sliding plate to translate when the lower driving wedge slides up and down, wherein the sliding plate is positioned at the far end position of the female die when the lower driving wedge is positioned at the upward moving highest position of the wedge, and the sliding plate is positioned at the near end position of the female die when the lower driving wedge is positioned at the downward moving lowest position of the wedge;
the lower driving wedge always abuts against the upper driving wedge in the downward pressing movement of the tail section stroke of the upper die frame, so that the upper driving wedge pushes in the downward pressing movement of the tail section stroke of the upper die frame to enable the lower driving wedge to slide downwards from the highest position of the upper driving wedge to the lowest position of the lower driving wedge.
5. The automatic production line for one-step forming of the double-bead elastic sheet according to claim 4 is characterized in that:
the sliding plate is provided with a sliding plate inclined plane, and the inclined plane of the lower driving wedge is always abutted against the sliding plate inclined plane;
the floating plate is provided with a floating plate inclined plane, and the inclined plane of the upper driving wedge is always abutted against the floating plate inclined plane;
a tapered wedge elastic reset mechanism which enables the lower driving tapered wedge to always have the trend of returning to the highest position of the upper movement is arranged between the lower driving tapered wedge and the lower die frame;
a floating elastic reset mechanism which enables the floating plate to always have the trend of returning to the far end position of the male die is arranged between the floating plate and the upper die frame;
the floating plate is always separated from the lower die frame in the process of downward pressing movement of the front section stroke of the upper die frame, so that the floating plate is always positioned at the far end position of the male die;
the lower driving wedge is always separated from the upper driving wedge in the downward pressing movement of the front section stroke of the upper die frame, so that the lower driving wedge is always positioned at the highest position of the upward movement of the wedge.
6. The automatic production line for one-step forming of the double-bead elastic sheet according to claim 5, is characterized in that:
the front stretching male die is gradually inserted into the front stretching female die to stretch the strip in the downward movement of the front section stroke of the upper die frame, and the front stretching male die is static relative to the front stretching female die in the downward movement of the tail section stroke of the upper die frame;
the front stretching male die is arranged in the upper die frame in a way of sliding up and down, and a male die elastic mechanism is arranged between the upper die frame and the front stretching male die;
the front stretching male die is forced by a male die elastic mechanism to be static relative to the upper die frame in the process of downward pressing movement of the front section stroke of the upper die frame;
the front stretching male die overcomes the elastic mechanism of the male die and slides relative to the upper die frame in the downward movement of the tail section stroke of the upper die frame.
7. The automatic production line for one-step forming of the double-bead elastic sheet according to claim 6, is characterized in that:
the male die elastic mechanism is a nitrogen spring;
the cylinder body of the nitrogen spring is fixedly arranged on the upper die frame, and the piston rod of the nitrogen spring is abutted against the front stretching male die.
8. The automatic production line for one-step molding of the double-bead shrapnel according to any one of claims 1 to 7, which is characterized in that:
the progressive die is also provided with a cutting station for cutting off the strip material to separate the double-bead elastic sheet bodies to be bent and a bending forming station for bending the double-bead elastic sheet bodies to be bent to form the double-bead elastic sheets;
the rear stretching station, the front stretching station, the cutting station and the bending forming station are sequentially distributed at intervals along the conveying direction of the strip;
the upper die part also comprises a cutter positioned on the cutting station and a bending male die positioned on the bending forming station, and the cutter and the bending male die are both arranged in the upper die frame to move along with the downward pressing of the upper die frame;
the lower die part also comprises a bending female die positioned on the bending forming station, the bending female die is arranged in the lower die frame, and the bending female die is positioned on the bending forming station and forms a bending forming die unit with the bending male die for bending the double-bead elastic sheet body to be bent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111129623.5A CN113751586B (en) | 2021-09-26 | 2021-09-26 | Automatic production line for one-step forming of double-bead spring plate |
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|---|---|---|---|
| CN202111129623.5A CN113751586B (en) | 2021-09-26 | 2021-09-26 | Automatic production line for one-step forming of double-bead spring plate |
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| CN113751586B CN113751586B (en) | 2024-04-23 |
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| CN216065147U (en) * | 2021-09-26 | 2022-03-18 | 广东恒力精密工业有限公司 | One-step forming automatic production line for double-bead elastic sheet |
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2021
- 2021-09-26 CN CN202111129623.5A patent/CN113751586B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0494828A (en) * | 1990-08-11 | 1992-03-26 | Press Gijutsu Kenkyusho:Kk | Method and device for feeding front end of material to progressive die |
| EP1457275A1 (en) * | 2003-03-12 | 2004-09-15 | UNIMET GmbH | Progressive die for punching press |
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| CN113751586B (en) | 2024-04-23 |
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