CN220880140U - Stretching machine - Google Patents
Stretching machine Download PDFInfo
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- CN220880140U CN220880140U CN202322411521.3U CN202322411521U CN220880140U CN 220880140 U CN220880140 U CN 220880140U CN 202322411521 U CN202322411521 U CN 202322411521U CN 220880140 U CN220880140 U CN 220880140U
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- female die
- stretching
- die
- edge pressing
- hydraulic device
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- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000007599 discharging Methods 0.000 claims abstract description 25
- 239000011324 bead Substances 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a stretcher, which comprises a frame, a stretching mechanism and a blank holder mechanism, wherein the stretching mechanism comprises a stretching hydraulic device, a male die and a female die, the stretching hydraulic device is arranged on the frame, and the male die is connected with the stretching hydraulic device; the female die is arranged on the frame and below the male die, the stretching hydraulic device drives the male die to enter a cavity of the female die or leave from the cavity of the female die, and a discharging channel communicated with the cavity of the female die is arranged on the side wall surface of the female die; the edge pressing mechanism is arranged on the frame and is used for pressing a plate arranged on the female die when the male die moves into the female die; compared with the prior art, the stretcher has the advantages that compared with a stretcher which needs to eject a molded workpiece out of a female die or take the molded workpiece off of a male die, the stretcher has the advantages that the stretcher stretching mechanism and the edge pressing mechanism are formed relatively short, the stretching speed can be improved, the energy consumption can be saved, and the efficiency and the energy conservation are realized.
Description
Technical Field
The utility model relates to the technical field of hydraulic presses, in particular to a stretcher.
Background
The traditional stretch forming equipment adopts a double-acting hydraulic machine, namely a stretch sliding block is connected with an oil cylinder, a blank pressing sliding block is connected with a blank pressing driving cylinder, and the blank pressing sliding block is required to firstly descend to press the periphery of a plate in the process of pressing the plate; and then the oil cylinder drives the stretching slide block to descend to finish the pressing of the arc part of the plate. After the workpiece is formed, the blank pressing driving cylinder drives the blank pressing sliding block to leave the female die, then the oil cylinder drives the stretching sliding block to open the die, and an ejection mechanism is needed to eject the formed workpiece from the female die or an ejection mechanism is needed to eject the workpiece wrapped on the male die after the die is opened. Therefore, when the die is opened, the height of the oil cylinder driving the sliding block to rise and the height of the blank pressing driving cylinder driving the blank pressing sliding block to rise are at least not lower than the height of the formed workpiece, so that the workpiece can be ejected from the die, and the ejected workpiece is convenient to be discharged. Therefore, the distance that the edge pressing slide block and the slide block need to move when the die is opened is relatively high, and the energy efficiency of the stretcher is wasted.
Disclosure of utility model
The utility model aims to provide a stretcher, which is used for solving the technical problems.
A stretcher, comprising:
a frame;
The stretching mechanism comprises a stretching hydraulic device, a male die and a female die, wherein the stretching hydraulic device is arranged on the frame, and the male die is connected with the stretching hydraulic device; the female die is arranged on the frame and below the male die, the stretching hydraulic device drives the male die to enter a cavity of the female die or leave from the cavity of the female die, and a discharging channel communicated with the cavity of the female die is arranged on the side wall surface of the female die;
The edge pressing mechanism is arranged on the frame and used for pressing a plate arranged on the female die when the male die moves into the female die.
According to an embodiment of the utility model, the height of the discharge channel is adapted to the depth of the cavity of the female die.
According to one embodiment of the utility model, the width of the discharge channel is greater than the width of the cavity of the female die.
According to an embodiment of the utility model, the distance of the lowest point of the male mold moving towards the cavities of the female mold is equal to the depth of the cavities of the two female molds.
According to one embodiment of the utility model, the edge pressing mechanism comprises an edge pressing hydraulic device and an edge pressing ring connected with the edge pressing hydraulic device, wherein the edge pressing hydraulic device is arranged on the frame, the edge pressing ring is provided with a circular avoiding hole, and the circular avoiding hole is positioned on a moving path of the male die.
According to one embodiment of the utility model, the number of the edge pressing hydraulic devices is multiple, the plurality of edge pressing hydraulic devices are annularly arrayed around the stretching hydraulic devices, and the edge pressing rings are simultaneously connected with all the edge pressing hydraulic devices.
According to one embodiment of the utility model, the frame comprises an upper beam, a lower beam and four upright posts, wherein the upper ends and the lower ends of the four upright posts are respectively connected with the upper beam and the lower beam.
According to one embodiment of the utility model, the stretching hydraulic device and the edge pressing hydraulic device are arranged on the upper beam, and the female die is arranged on the lower beam.
According to one embodiment of the utility model, the blank holder extends to four upright posts and is provided with connecting parts, and the connecting parts are connected with guide sleeves which are in sliding connection with the corresponding upright posts.
According to an embodiment of the utility model, the die further comprises a discharging mechanism, and the action end of the discharging mechanism faces to the discharging channel on the die.
Compared with the prior art, the stretcher has the following advantages:
According to the stretcher disclosed by the utility model, the discharging channel is arranged on the female die, after a workpiece is formed, the height of the lifting of the male die driven by the stretching hydraulic device and the height of the reset blank holder mechanism are not influenced as long as an operator is not influenced to put a new plate into the stretcher, and compared with the stretcher which needs to eject the formed workpiece from the female die or take the formed workpiece off the male die, the stretcher has the advantages that the stretching speed can be improved, the energy consumption can be saved, and the efficiency and the energy conservation are realized.
Drawings
FIG. 1 is a schematic view of a drawing machine according to the present utility model;
FIG. 2 is a cross-sectional view of the stretcher of the present utility model;
In the figure: 1. the device comprises a frame, an upper beam, a lower beam, a vertical column, a stretching mechanism, a stretching hydraulic device, a male die, a female die, a blank holder mechanism, a blank holder hydraulic device, a blank holder ring, a connecting part, a guide sleeve and a guide sleeve
The implementation and advantages of the functions of the present utility model will be further described with reference to the accompanying drawings.
Detailed Description
Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
It should be noted that all directional indicators (such as up, down, left and right, front and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are correspondingly changed.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
For a further understanding of the nature, features, and efficacy of the present utility model, the following examples are set forth in order to provide a further understanding of the utility model, and are intended to be described in connection with the accompanying drawings:
The utility model discloses a stretcher, referring to fig. 1 and 2, the stretcher disclosed by the utility model comprises a frame 1, a stretching mechanism 2 and a blank holder mechanism 3, wherein the frame 1 comprises an upper cross beam 11, a lower cross beam 12 and four upright posts 13, and the upper ends and the lower ends of the four upright posts 13 are respectively connected with the upper cross beam 11 and the lower cross beam 12; the stretching mechanism 2 comprises a stretching hydraulic device 21, a male die 22 and a female die 23, wherein the stretching hydraulic device 21 is arranged on the upper beam 11 of the frame 1, and the male die 22 is connected with the stretching hydraulic device 21; the female die 23 is arranged on the lower beam 12 of the frame 1 and below the male die 22, the stretching hydraulic device 21 drives the male die 22 to enter the cavity of the female die 23 or leave from the cavity of the female die 23, and a discharging channel 231 communicated with the cavity of the female die 23 is arranged on the side wall surface of the female die 23; the edge pressing mechanism 3 is arranged on the upper beam 11 of the frame 1 and is used for pressing a plate placed on the female die 23 when the male die 22 moves into the female die 23. When the stretching machine disclosed by the utility model works, a plate is placed on the male die 22, then the edge pressing mechanism 3 is started and pressed on the plate, edge pressing is carried out on the plate, after the edge pressing mechanism 3 presses the edge, the stretching hydraulic device 21 is started and drives the male die 22 to move downwards, the male die 22 presses the plate on the female die 23 downwards, the plate is stretched, the plate enters the cavity of the female die 23 and is molded, after the plate is molded in the cavity of the female die 23, the edge pressing mechanism 3 is started and reset, the edge pressing mechanism 3 leaves the female die 23, the stretching hydraulic device 21 continuously drives the male die 22 to move downwards, the molded workpiece is pushed into the discharging channel 231 from the cavity by the male die 22, after the molded workpiece completely enters the discharging channel 231, the stretching hydraulic device 21 drives the male die 22 to reset, an operator can take out the molded workpiece from the discharging channel 231, and a new plate is placed on the female die 23. In the stretcher, the discharging channel 231 is arranged on the female die 23, after a workpiece is molded, the height of the stretching hydraulic device 21 for driving the male die 22 to rise and the height of the blank holder mechanism 3 after reset only need not to influence an operator to put a new plate, and compared with the stretcher which needs to eject a molded workpiece from the female die 23 or take the molded workpiece off the male die 22, the stretcher stretching mechanism 2 and the blank holder mechanism 3 of the stretcher are relatively short in formation, so that the stretching speed can be increased, the energy consumption can be saved, and the stretcher has the advantages of high efficiency and energy conservation.
Referring to fig. 2, in the stretching machine of the present utility model, the height of the discharging channel 231 is adapted to the depth of the cavity of the female die 23. The formed workpiece may be fully fed into the discharge channel 231 and may be conveniently discharged from the discharge channel 231.
Referring to fig. 1, in the stretching machine of the present utility model, the width of the discharging channel 231 is larger than the width of the cavity of the female die 23. After the molded workpiece enters the discharge passage 231, the side wall surface of the molded workpiece is not abutted against the side wall surface of the discharge passage 231, and when the molded workpiece is taken out of the discharge passage 231, the side wall surface of the molded workpiece is not rubbed by the side wall surface of the discharge passage 231, so that the appearance of the molded workpiece can be protected.
Referring to fig. 2, in the stretching machine of the present utility model, a through hole is formed at the bottom of the discharging channel 231. The contact area between the bottom surface of the molded workpiece and the bottom of the discharge passage 231 can be reduced, and when the molded workpiece is taken out from the discharge passage 231, the bottom surface of the molded workpiece is not rubbed by the bottom of the discharge passage 231, so that the appearance of the molded workpiece can be protected.
Referring to fig. 1 and 2, in the stretching machine of the present utility model, the distance from the lowest point of the male die 22 to the cavity of the female die 23 is equal to the depth of the cavities of the two female dies 23. When the lowest point of the male die 22 moves to the depth of the cavity of the female die 23 by one cavity of the female die 23, the sheet is stretched and formed, and then when the lowest point of the male die 22 moves downwards by one cavity of the female die 23, the formed workpiece is completely pushed into the discharge channel 231 from the cavity of the female die 23, so that the formed workpiece can be completely discharged from the cavity of the female die 23.
Referring to fig. 1 and 2, the edge pressing mechanism 3 of the stretching machine of the present utility model includes an edge pressing hydraulic device 31 and an edge pressing ring 32 connected to the edge pressing hydraulic device 31, wherein the edge pressing hydraulic device 31 is disposed on the frame 1, the edge pressing ring 32 is provided with a circular avoiding hole, and the circular avoiding hole is located on a moving path of the male die 22. Before the male die 22 of the stretching mechanism 2 contacts with the plate on the female die 23, the blank holder hydraulic device 31 moves downwards to drive the blank holder 32 and presses the blank onto the plate on the female die 23, and then the stretching hydraulic device 21 is started and drives the male die 22 to move downwards, so that the male die 22 stretches the plate on the female die 23 which is pressed by the blank holder 32 into the cavity of the female die 23, and the plate is molded in the cavity of the female die 23.
Referring to fig. 1 and 2, in the stretcher of the present utility model, the number of the edge pressing hydraulic devices 31 is plural, the plurality of edge pressing hydraulic devices 31 are annularly arrayed around the stretching hydraulic device 21, and the edge pressing ring 32 is simultaneously connected with all the edge pressing hydraulic devices 31. When the blank holder 32 acts on the plate on the female die 23, the contact part of the plate and the blank holder 32 is stressed uniformly, so that the wall thickness of the formed product is uniform after the plate is stretched.
Referring to fig. 1, in the stretcher of the present utility model, the blank holder 32 extends to four upright posts 13 to form a connecting portion 321, and a guiding sleeve 322 is connected to the connecting portion 321, and the guiding sleeve 322 is slidably connected to the corresponding upright post 13. When the edge pressing hydraulic device 31 drives the edge pressing ring 32 to move towards the female die 23, the guide sleeve 322 slides along the upright post 13, so that the edge pressing ring 32 can be ensured to move stably, and the synchronous operation of each edge pressing hydraulic device 31 is ensured.
The stretching machine of the utility model also comprises a discharging mechanism (shown in the drawing), and the action end of the discharging mechanism faces to a discharging channel 231 on the female die 23. After the formed workpiece enters the discharge channel 231, the discharge mechanism is started, and the action end of the discharge mechanism acts on the formed workpiece in the discharge channel 231 and withdraws the formed workpiece from the discharge channel 231, so that the automatic discharge of the stretcher is realized, the automation degree is high, the working efficiency of the stretcher can be improved, and the safety of the stretcher can be improved. The discharging mechanism can be realized by adopting a mode that a driving cylinder drives a pushing rod, and after the formed workpiece enters the discharging channel 231, the driving cylinder is started, and the pushing rod stretches into the discharging channel 231 and pushes the formed workpiece in the discharging channel 231 out of the discharging channel 231. However, the driving cylinder drives the discharging mechanism of the pushing rod, and any other way of driving the pushing rod to move into the discharging channel 231 and push out or pull out the formed workpiece is within the scope of the present utility model.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A stretcher, characterized by comprising:
A frame (1);
The stretching mechanism (2) comprises a stretching hydraulic device (21), a male die (22) and a female die (23), wherein the stretching hydraulic device (21) is arranged on the frame (1), and the male die (22) is connected with the stretching hydraulic device (21); the female die (23) is arranged on the frame (1) and is positioned below the male die (22), the stretching hydraulic device (21) drives the male die (22) to enter a cavity of the female die (23) or to leave from the cavity of the female die (23), and a discharging channel (231) communicated with the cavity of the female die (23) is arranged on the side wall surface of the female die (23);
And the edge pressing mechanism (3) is arranged on the frame (1) and is used for pressing a plate placed on the female die (23) when the male die (22) moves into the female die (23).
2. Stretching machine according to claim 1, wherein the height of the discharge channel (231) is adapted to the depth of the cavity of the female die (23).
3. The stretching machine according to claim 1, wherein the width of the outfeed channel (231) is greater than the width of the cavity of the female die (23).
4. Stretching machine according to claim 1, wherein the lowest point of the male die (22) moves towards the cavities of the female dies (23) by a distance equal to the depth of the cavities of both female dies (23).
5. The stretching machine according to claim 1, wherein the edge pressing mechanism (3) comprises an edge pressing hydraulic device (31) and an edge pressing ring (32) connected with the edge pressing hydraulic device (31), the edge pressing hydraulic device (31) is arranged on the frame (1), the edge pressing ring (32) is provided with a circular avoiding hole, and the circular avoiding hole is positioned on the moving path of the male die (22).
6. The stretching machine according to claim 5, wherein the number of the edge pressing hydraulic devices (31) is plural, a plurality of the edge pressing hydraulic devices (31) are arranged in an annular array around the stretching hydraulic devices (21), and the edge pressing ring (32) is simultaneously connected with all the edge pressing hydraulic devices (31).
7. The stretching machine according to claim 5, wherein the frame (1) comprises an upper cross beam (11), a lower cross beam (12) and four upright posts (13), the upper and lower ends of the four upright posts (13) being connected to the upper and lower cross beams (11, 12), respectively.
8. Stretching machine according to claim 7, wherein said stretching hydraulic means (21) and said blank holder hydraulic means (31) are provided on said upper cross beam (11), and said female die (23) is provided on said lower cross beam (12).
9. The stretcher according to claim 7 characterized in that the bead ring (32) extends to four of the upright posts (13) and has a connecting portion (321), and the connecting portion (321) is connected with a guide sleeve (322), and the guide sleeve (322) is slidably connected with the corresponding upright post (13).
10. The stretching machine according to claim 1, further comprising a discharge mechanism, the active end of which is directed towards a discharge channel (231) on the female die (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322411521.3U CN220880140U (en) | 2023-09-05 | 2023-09-05 | Stretching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322411521.3U CN220880140U (en) | 2023-09-05 | 2023-09-05 | Stretching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220880140U true CN220880140U (en) | 2024-05-03 |
Family
ID=90866893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322411521.3U Active CN220880140U (en) | 2023-09-05 | 2023-09-05 | Stretching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220880140U (en) |
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2023
- 2023-09-05 CN CN202322411521.3U patent/CN220880140U/en active Active
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