CN115194022A - Plate core stamping die and method for flat plate type solar heat collector - Google Patents

Abstract

The invention discloses a plate core stamping die and a stamping method of a flat plate type solar heat collector, wherein the stamping die comprises a profiling die and an auxiliary die, the profiling die comprises a profiling upper die and a profiling lower die, a movable die for stamping the right part of a plate core is arranged at the right part of the profiling upper die and/or the right part of the profiling lower die, the left part of the profiling upper die and the left part of the profiling lower die are used for stamping the left part of the plate core, and the auxiliary die comprises an auxiliary upper die and an auxiliary lower die for stamping the right part of the plate core. The stamping method comprises the following steps: installing a profiling upper die and a profiling lower die on stamping equipment, and disassembling a movable die; aligning the left part of the plate core to be punched with the left part of the profiling lower die, and starting a punching device to obtain a semi-finished plate core of which the left part structure of the target plate core is punched; installing an auxiliary upper die and an auxiliary lower die on the stamping equipment; and aligning the right part of the semi-finished plate core with the right part of the auxiliary lower die, and starting the stamping equipment to obtain the target plate core. The invention can lead the processing of the plate core to adapt to the requirements of individuation and diversification of the market.

Description

Plate core stamping die and method for flat plate type solar heat collector

Technical Field

The invention relates to the technical field of plate core processing of a flat plate solar collector, in particular to a plate core stamping die and a stamping method of the flat plate solar collector.

Background

A flat plate type solar collector is a device for converting radiant energy of the sun into thermal energy. As shown in fig. 1, the flat plate type solar heat collector comprises an aluminum alloy frame 1, a back plate 2, a heat preservation layer 3, a heat absorbing body 4 and a glass cover plate 5, wherein the back plate 2 is installed on one side of the aluminum alloy frame 1, the heat preservation layer 3 is installed on one side, facing to the inside of the aluminum alloy frame 1, of the back plate 2, the heat absorbing body 4 is placed on the heat preservation layer 3, the glass cover plate 5 is installed on the other side of the aluminum alloy frame 1, and the heat preservation layer 3 and the heat absorbing body 4 are packaged inside the aluminum alloy frame 1 through the back plate 2 and the glass cover plate 5.

When the flat-plate solar collector works, solar radiation penetrates through the glass cover plate 5 and then is projected onto the heat absorber 4, is absorbed by the heat absorber 4 and is converted into heat energy, and then the heat energy is transferred to the heat transfer medium in the heat absorber 4, so that the temperature of the heat transfer medium is increased and the heat transfer medium is used as useful energy output of the flat-plate solar collector.

As shown in fig. 2 and 3, the heat absorber 4 is formed by welding two sheets of pressed core plates 41, and most of the core plates 41 are pressed at a time by a pressing die 6 attached to a pressing device, and the core plates 41 are usually made of stainless steel plates. The profiling mold 6 includes a profiling upper mold 61 and a profiling lower mold 62. After being stamped by a profiling mold 6, the left upper end of the plate core 41 is provided with a medium inlet a and a medium outlet b, the medium inlet a is communicated with the upper end of a downward main flow passage c, the lower end of the downward main flow passage c is communicated with the left end of a first horizontal main flow passage d, the right end of the first horizontal main flow passage d is communicated with a second horizontal main flow passage f through a turning flow passage e, the second horizontal main flow passage f is communicated with the lower ends of a plurality of side-by-side upward branch flow passages g, the upper ends of all the upward branch flow passages g are communicated with the same third horizontal main flow passage h, and the left end of the third horizontal main flow passage h is communicated with the medium outlet b.

Since the size and specification of the profiling mold 6 are fixed, only a plate core 41 with a single specification (mainly a single length) can be punched, so that only a flat plate type solar collector with a single specification can be manufactured. However, with the increase of market personalized demands, the specification diversification (mainly referring to the length diversification) of the heat collector is imperative.

Therefore, how to adapt the processing of the board core to the demands of market personalization and diversification is a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The invention aims at the defects in the prior art, provides the plate core stamping die and the stamping method of the flat plate type solar collector, and can enable the processing of the plate core to meet the requirements of individuation and diversification of the market.

In order to realize the purpose, the invention provides the following technical scheme:

the utility model provides a flat plate solar collector's board core stamping die, includes die mould and auxiliary die, and the die mould includes die mould and die mould lower mould on the die mould, and the right part of die mould and/or the right part of die mould lower mould are equipped with the movable mould that is used for punching out the board core right part, and the board core left part is punched out to the left part of die mould and the left part of die mould lower mould, and auxiliary die is including the supplementary mould and the supplementary lower mould that go up that are used for punching out the board core right part.

Furthermore, the movable die comprises a right upper die used for punching the upper right part of the plate core and a right lower die used for punching the lower right part of the plate core.

When the length of the target plate core is the same as that of the profiling mold, the stamping method of the plate core stamping mold of the flat-plate solar collector comprises the following steps: (1) Installing the upper profiling die, the lower profiling die and the movable die on stamping equipment; (2) And placing the plate core to be punched on the profiling lower die, aligning the left part of the plate core to be punched with the left part of the profiling lower die, starting a punching device, and obtaining the target plate core after punching.

When the length of the target plate core is greater than that of the profiling mold, the stamping method of the plate core stamping mold of the flat-plate solar collector comprises the following steps: (1) Installing the profiling upper die and the profiling lower die on stamping equipment, and disassembling the movable die; (2) Placing the plate core to be punched on the profiling lower die, aligning the left part of the plate core to be punched with the left part of the profiling lower die, starting the punching equipment in the step (1), and obtaining a semi-finished plate core with a punched target plate core left part structure after punching is finished; (3) Replacing the auxiliary upper die and the auxiliary lower die on the stamping equipment in the step (1), or installing the auxiliary upper die and the auxiliary lower die on another stamping equipment; (4) And (4) placing the semi-finished plate core on the auxiliary lower die, aligning the right part of the semi-finished plate core with the right part of the auxiliary lower die, starting the stamping equipment in the step (3), and obtaining the target plate core after stamping is completed.

When the length of the target plate core is smaller than that of the profiling mold, the stamping method of the plate core stamping mold of the flat plate type solar collector comprises the following steps: (1) The upper die and the lower die are mounted on a stamping device; (2) Placing the plate core to be punched on the profiling lower die, aligning the left part of the plate core to be punched with the left part of the profiling lower die, starting the punching equipment in the step (1), and obtaining a semi-finished plate core with a punched target plate core left part structure after punching is finished; (3) Replacing the auxiliary upper die and the auxiliary lower die on the stamping equipment in the step (1), or installing the auxiliary upper die and the auxiliary lower die on another stamping equipment; (4) And (4) placing the semi-finished product plate core on the auxiliary lower die, aligning the right part of the semi-finished product plate core with the right part of the auxiliary lower die, starting the stamping equipment in the step (3), and obtaining the target plate core after stamping.

Compared with the prior art, the invention has the beneficial effects that:

1. in the first aspect, when the length of the target core is the same as that of the profiling mold, the profiling mold without disassembling the movable mold is sufficient to punch out the target core.

In the second aspect, when the target core is longer than the profiling mold, the stamping of the right portion of the semi-product core by the profiling mold with the movable mold removed is not completed, and the auxiliary mold is used to additionally stamp a longer portion and complete the shape of the right portion of the core, thereby completing the stamping of the core longer than the profiling mold.

And thirdly, when the length of the target plate core is smaller than that of the profiling mold, the right part of the semi-finished plate core punched by the profiling mold is not finished, and the auxiliary mold is used for punching the right part of the semi-finished plate core again to finish the right part of the target plate core, so that the punching of the plate core shorter than that of the profiling mold is completed.

In summary, the stamping die and the stamping method provided by the invention can process plate cores with diversified specifications, so that flat plate type solar heat collectors with diversified specifications can be manufactured, and the personalized and diversified market demands are met.

2. According to the invention, the movable die comprises the right upper die and the right lower die, so that the semi-finished plate core and the plate core finally punched by the auxiliary die have an overlapped part, and the punching of the overlapped part can improve the punching accuracy, thereby being beneficial to improving the punching quality of the plate core and improving the punching effect.

Drawings

FIG. 1 is a schematic structural diagram of a flat-plate solar collector in the background art;

FIG. 2 is a schematic structural view of a core of the prior art;

FIG. 3 is a schematic structural diagram of a medium-pressure mold of the prior art;

FIG. 4 is a first schematic view of a profiling mold of embodiment 1;

FIG. 5 is a second schematic structural view of a profiling mold of example 1;

FIG. 6 is a third schematic view of the configuration of the profiling mold of example 1;

FIG. 7 is a schematic structural view of an auxiliary mold according to example 1;

FIG. 8 is a first schematic structural view of a profiling mold according to embodiment 2;

FIG. 9 is a second schematic view of the configuration of the profiling mold of example 2;

FIG. 10 is a third schematic structural view of a profiling mold of example 2;

FIG. 11 is a fourth schematic view of the configuration of the profiling mold of example 2;

FIG. 12 is a fifth schematic structural view of a profiling mold of example 2;

FIG. 13 is a schematic structural view of a core of the target board of example 3;

FIG. 14 is a schematic structural view of a core plate targeted in example 4;

FIG. 15 is a first schematic structural view of a core of a semifinished sheet according to example 4;

FIG. 16 is a second schematic structural view of a core of a semifinished sheet according to example 4;

FIG. 17 is a schematic view of the structure of a core plate which is the object of example 5;

FIG. 18 is a schematic structural view of a core of a semifinished sheet according to example 5.

In the figure:

1-an aluminum alloy frame, wherein the aluminum alloy frame,

2-a back plate, wherein the back plate is provided with a plurality of grooves,

3-a heat-insulating layer,

4-a heat absorber, 41-a core,

5-a glass cover plate, wherein the glass cover plate,

6-profiling die, 61-profiling upper die, 62-profiling lower die, 63-movable die, 631-right upper die, 632-right lower die,

7-auxiliary die, 71-auxiliary upper die and 72-auxiliary lower die.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

as shown in fig. 4-7, a core stamping die for a flat plate solar collector comprises a profiling die 6 and an auxiliary die 7.

As shown in fig. 4 to 6, the profiling mold 6 includes an upper profiling mold 61 and a lower profiling mold 62, the upper profiling mold 61 is a male mold, the lower profiling mold 62 is a female mold, and a lower end surface of the upper profiling mold 61 and an upper end surface of the lower profiling mold 62 are shown in fig. 4 to 6.

The lower die 62 is mounted on a table of a press apparatus (e.g., a press), and the upper die 61 is mounted on a ram of the press apparatus. When the ram descends, the upper die 61 attached to the ram can move closer to the lower die 62 attached to the table.

The right part of the upper profiling die 61 and/or the right part of the lower profiling die 62 is provided with a movable die 63 for punching out the right part of the core plate 41. The shape of the movable mold 63 matches the shape of the right portion of the plate core 41 (a part of the third horizontal main flow passage h, a part of the upper branch flow passage g, a part of the second horizontal main flow passage f, a part of the first horizontal main flow passage d, and a turn flow passage e that match the right portion of the plate core 41).

In the first case: as shown in fig. 4, a movable die 63p is provided on the right of the upper die 61, and a movable die 63q is provided on the right of the lower die 62. A movable die 63P on the right of the upper die 61 is mounted on the ram, and a movable die 63q on the right of the lower die 62 is mounted on the table. When the movable die 63p and/or the movable die 63q are removed, the upper die 61 and the lower die 62 cannot punch out the right portion of the core 41, but the upper die 61 and the lower die 62 can punch out the left portion of the core 41.

In the second case: as shown in fig. 5, only the right portion of the profiling upper die 61 is provided with a movable die 63p. When the movable die 63p is detached, the right portion of the core 41 to be punched cannot be punched by the movable die 63p, so the profiling upper die 61 and the profiling lower die 62 cannot punch the right portion of the core 41, but the profiling upper die 61 and the profiling lower die 62 can punch the left portion of the core 41.

In the third case: as shown in fig. 6, only the right portion of the die lower 62 is provided with a movable die 63q. When the movable die 63q is detached, the right portion of the core 41 to be punched cannot be punched by the movable die 63q, so the profiling upper die 61 and the profiling lower die 62 cannot punch the right portion of the core 41, but the profiling upper die 61 and the profiling lower die 62 can punch the left portion of the core 41.

As shown in fig. 7, the auxiliary mold 7 includes an auxiliary upper mold 71 and an auxiliary lower mold 72, the auxiliary upper mold 71 is a male mold, the auxiliary lower mold 72 is a female mold, and fig. 7 shows lower end surfaces of the auxiliary upper mold 71 and the auxiliary lower mold 72 and an upper end surface of the auxiliary lower mold 72. The shapes of the auxiliary upper die 71 and the auxiliary lower die 72 match the shape of the right portion of the core sheet 41 for punching out the right portion of the core sheet 41.

The auxiliary lower die 72 may be installed on a table of the press apparatus, and the auxiliary upper die 71 may be installed on a ram of the press apparatus. When the ram descends, the auxiliary upper die 71 attached to the ram can move closer to the auxiliary lower die 72 attached to the table.

Example 2:

in this embodiment 2, a further improvement is made on the basis of embodiment 1: as shown in fig. 8 to 12, in the present embodiment 2, the movable mold 63 includes an upper right mold 631 and a lower right mold 632, the shape of the upper right mold 631 matching the shape of the upper right portion of the core plate 41 (matching the part of the third horizontal main flow path h and the part of the upper branch flow path g in the upper right portion of the core plate 41), and the shape of the lower right mold 632 matching the shape of the lower right portion of the core plate 41 (matching the turn flow path e and the part of the upper branch flow path g in the lower right portion of the core plate 41). The upper right die 631 is used to stamp out the upper right portion of the core 41, and the lower right die 632 is used to stamp out the lower right portion of the core 41.

In the first case: as shown in fig. 8, an upper right mold 631p is provided on the upper right of the upper mold 61, a lower right mold 632p is provided on the lower right of the upper mold 61, an upper right mold 631q is provided on the upper right of the lower mold 62, and a lower right mold 632q is provided on the lower right of the lower mold 62. When the upper right die 631p and/or the upper right die 631q, the lower right die 632p and/or the lower right die 632q are removed, the upper die 61 and the lower die 62 cannot punch the upper right portion and the lower right portion of the core sheet 41, but the upper die 61 and the lower die 62 can punch the left portion of the core sheet 41.

In the second case: as shown in fig. 9, only the profiling upper die 61 is provided with the right upper die 631p and the right lower die 632p. When the upper right die 631p and the lower right die 632p are removed, the upper die 61 and the lower die 62 cannot punch the upper right portion and the lower right portion of the core sheet 41, but the upper die 61 and the lower die 62 can punch the left portion of the core sheet 41.

In the third case: as shown in fig. 10, only the profiling lower die 62 is provided with an upper right die 631q and a lower right die 632q. When the upper right mold 631q and the lower right mold 632q are detached, the upper mold 61 and the lower mold 62 cannot stamp the upper right portion and the lower right portion of the core 41, but the upper mold 61 and the lower mold 62 can stamp the left portion of the core 41.

In a fourth case: as shown in fig. 11, the upper mold 61 is provided with only the upper right mold 631p, and the lower mold 62 is provided with only the lower right mold 632q. When the upper right die 631p and the lower right die 632q are detached, the upper die 61 and the lower die 62 cannot punch the upper right portion and the lower right portion of the core 41, but the upper die 61 and the lower die 62 can punch the left portion of the core 41.

In the fifth case: as shown in fig. 12, the upper die 61 is provided with only the lower right die 632p, and the lower die 62 is provided with only the upper right die 631q. When the right lower die 632p and the right upper die 631q are detached, the profiling upper die 61 and the profiling lower die 62 cannot stamp the upper right portion and the lower right portion of the core 41, but the profiling upper die 61 and the profiling lower die 62 can stamp the left portion of the core 41.

Example 3:

when the length L2 of the target core 41 shown in fig. 13 is the same as the length L1 of the profiling die 6 shown in fig. 4 to 6 or fig. 8 to 12, the pressing method using the pressing die described in embodiment 1 or embodiment 2 includes the steps of:

(1) The worker mounts the upper and lower profiling dies 61 and 62 and the movable die 63 on the press apparatus.

(2) The worker places the core sheet 41 to be punched (the core sheet 41 to be punched is a sheet of light plate) on the upper end face of the profiling lower die 62, and the worker aligns the left portion of the core sheet 41 to be punched with the left portion of the profiling lower die 62. Then, the worker starts the press apparatus, and after the press is completed, the upper and lower die molds 61 and 62 and the movable mold 63 are pressed to form the target core 41 shown in fig. 13.

The target core 41 refers to the core 41 that is planned to be finally punched.

As can be seen from the above process, when the length L2 of the target core board 41 is the same as the length L1 of the profiling mold 6, the profiling mold 6 to which the movable mold 63 is attached is sufficient for the press forming of the core board 41, so that there is no need to disassemble the movable mold 63 and use the auxiliary mold 7.

Example 4:

when the length L3 of the target core 41 shown in fig. 14 is larger than the length L1 of the profiling mold 6 shown in fig. 4 to 6 or fig. 8 to 12, the punching method using the punching mold described in embodiment 1 or embodiment 2 includes the steps of:

(1) The worker mounts the upper die 61 and the lower die 62 on the press machine, and removes the movable die 63.

(2) The worker places the core-to-be-stamped 41 on the upper end face of the profiling lower die 62, and the worker aligns the left portion of the core-to-be-stamped 41 with the left portion of the profiling lower die 62. Then, the worker starts the punching apparatus in the step (1), and after the punching is completed, the semi-finished board core 41 with the left structure of the target board core 41 punched is obtained.

As shown in fig. 15, the structure of the green sheet 41 punched out using the press mold 6 of example 1 is such that the length L4 of the left portion of the target sheet 41 punched out of the green sheet 41 is the same as the length L5 of the press mold 6 after the movable mold 63 is removed.

Fig. 16 shows a structure of a green sheet core 41 punched out by using the die 6 of example 2. The length L4+ D4 of the left structure of the target core 41 punched out of the semi-finished core 41 is the same as the length L5+ D5 of the profiling mold 6 after the movable mold 63 is removed.

(3) The worker replaces the upper auxiliary upper die 71 and the lower auxiliary die 72 on the press apparatus in the step (1), or the worker mounts the upper auxiliary die 71 and the lower auxiliary die 72 on another press apparatus.

(4) The worker places the semifinished core 41 on the auxiliary lower die 72, and the worker aligns the right portion of the semifinished core 41 with the right portion of the auxiliary lower die 72, starts the press apparatus in step (3), and after the press is completed, the target core 41 shown in fig. 14 is obtained.

Through the above process, it can be known that: in the case of punching the target core 41 having a longer length than the profiling die 6, because the right portion of the semifinished core 41 punched out using the profiling die 6 is not finished after the movable die 63 in the profiling die 6 is detached, the auxiliary die 7 is used to additionally punch out a portion having a longer length and finish the shape of the right portion of the core 41, thereby completing the punching of the core 41 having a longer length than the profiling die 6. Therefore, the plate core 41 with diversified specifications can be processed, the flat plate type solar heat collector with diversified specifications can be manufactured, and the requirements of market individuation and diversification are met.

Further, when the pressing mold 6 of example 2 is used to punch out the core blank 41 and the auxiliary mold 7 is used to continue the punching, if the lengths L3 to L4 of the portions of the core blank 41 not punched are the same as the length of the auxiliary mold 7, the punching in step (4) and the punching in step (2) still have an overlapping portion, and the length of the overlapping portion is D4 (D4 is the same as D5); if the length L3-L4 of the non-punched part of the green sheet core 41 is smaller than the length of the auxiliary mold 7, the punching in step (4) and the punching in step (3) partially overlap each other, and the length of the overlapped part is larger than D4. Therefore, the semi-finished plate core 41 stamped by the profiling mold 6 in the embodiment 2 can ensure that at least the length of D4 is overlapped when the auxiliary mold 7 is used for continuous stamping, and the overlapped part is formed, so that the stamping accuracy can be improved, the stamping quality of the plate core 41 can be improved, and the stamping effect is improved.

Example 5:

when the length L6 of the target core 41 shown in fig. 17 is larger than the length L1 of the profiling die 6 shown in fig. 4 to 6 or fig. 8 to 12, the pressing method using the pressing die described in embodiment 1 or embodiment 2 includes the steps of:

(1) The worker mounts the upper die 61 and the lower die 62 on the press apparatus. The movable die 63 may be removed and removed because the length L1 of the profiling die 6 is greater than the length L6 of the target core 41, so that the right end of the target core 41 is not finished, and thus the movable die 63 may be removed and removed.

(2) The worker places the core sheet 41 to be punched on the upper end face of the profiling lower die 62, and the worker aligns the left portion of the core sheet 41 to be punched with the left portion of the profiling lower die 62. Then, the worker starts the press machine in step (1), and after the press is completed, the semifinished sheet core 41 shown in fig. 18 is obtained in which the left structure of the target sheet core 41 is pressed.

(3) The worker replaces the upper auxiliary upper die 71 and the lower auxiliary die 72 on the press apparatus in the step (1), or the worker mounts the upper auxiliary die 71 and the lower auxiliary die 72 on another press apparatus.

(4) The worker places the semifinished core 41 on the auxiliary lower die 72, and the worker aligns the right portion of the semifinished core 41 with the right portion of the auxiliary lower die 72, the worker starts the press apparatus in step (3), and after the press is completed, the target core 41 shown in fig. 17 is obtained.

Through the above process, it can be known that: when the target core 41 having a shorter pressing length than the pressing mold 6 is pressed, since the right portion of the semifinished core 41 pressed by the pressing mold 6 is not finished, the right portion of the semifinished core 41 is pressed again by the auxiliary mold 7 so that the right portion of the target core 41 is finished, thereby completing the pressing of the core 41 having a shorter pressing length than the pressing mold 6. Therefore, the plate core 41 with diversified specifications can be processed, the flat plate type solar heat collector with diversified specifications can be manufactured, and the requirements of market individuation and diversification are met.

In addition, no matter the semi-finished product core 41 punched by the pressing die 6 in example 1 or the semi-finished product core 41 punched by the pressing die 6 in example 2, because the length L6 of the target core 41 is smaller than the length L1 of the pressing die 6, the upper runner structure is inevitably punched on the semi-finished product core 41, but no finishing structure exists, when the auxiliary die 7 is used for punching again, the overlapped part of the punching is inevitably formed, so that the punching accuracy can be improved, the punching quality of the core 41 can be improved, and the punching effect is improved.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (5)

1. The utility model provides a flat plate solar collector's board core stamping die, includes the die mould, and the die mould includes die mould and die mould lower mould on the die mould, its characterized in that still includes supplementary mould, and supplementary mould is including the supplementary mould and supplementary lower mould that are used for punching out the board core right part, the right part of die mould and/or the right part of die mould lower mould is equipped with the movable mould that is used for punching out the board core right part, and the left part of die mould and the left part punching out the board core left part of die mould are gone up to the left part of die mould.

2. The core stamping die for a flat plate solar collector as claimed in claim 1, wherein the movable die comprises a right upper die for stamping a right upper portion of the core and a right lower die for stamping a right lower portion of the core.

3. A stamping method using a core stamping die for a flat plate solar collector according to claim 1 or 2, wherein when the length of the target core is the same as the length of the stamping die, the method comprises the steps of:

(1) Installing the profiling upper die, the profiling lower die and the movable die on stamping equipment;

(2) And placing the plate core to be punched on the profiling lower die, aligning the left part of the plate core to be punched with the left part of the profiling lower die, starting a punching device, and obtaining the target plate core after punching.

4. A stamping method using a core stamping die for a flat plate solar collector according to claim 1 or 2, wherein when the length of the target core is greater than the length of the stamping die, the method comprises the following steps:

(1) Installing the profiling upper die and the profiling lower die on stamping equipment, and disassembling the movable die;

(2) Placing the plate core to be punched on the profiling lower die, aligning the left part of the plate core to be punched with the left part of the profiling lower die, starting the punching equipment in the step (1), and obtaining a semi-finished plate core with a punched target plate core left part structure after punching is finished;

(3) Replacing the auxiliary upper die and the auxiliary lower die on the stamping equipment in the step (1), or installing the auxiliary upper die and the auxiliary lower die on another stamping equipment;

(4) And (4) placing the semi-finished product plate core on the auxiliary lower die, aligning the right part of the semi-finished product plate core with the right part of the auxiliary lower die, starting the stamping equipment in the step (3), and obtaining the target plate core after stamping.

5. A stamping method using a core stamping die for a flat plate solar collector according to claim 1 or 2, wherein when the length of the target core is less than the length of the stamping die, the method comprises the following steps:

(1) Installing the profiling upper die and the profiling lower die on stamping equipment;

(2) Placing the plate core to be punched on the profiling lower die, aligning the left part of the plate core to be punched with the left part of the profiling lower die, starting the punching equipment in the step (1), and obtaining a semi-finished plate core with a punched target plate core left part structure after punching is finished;

(3) Replacing the auxiliary upper die and the auxiliary lower die on the stamping equipment in the step (1), or installing the auxiliary upper die and the auxiliary lower die on another stamping equipment;

(4) And (4) placing the semi-finished product plate core on the auxiliary lower die, aligning the right part of the semi-finished product plate core with the right part of the auxiliary lower die, starting the stamping equipment in the step (3), and obtaining the target plate core after stamping.

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