A water pan drawing die

Abstract

The utility model provides a water pan deep -drawing die, including upper die subassembly and lower die subassembly. Upper die subassembly from top to bottom includes upper supporting plate, upper die foot, upper die base, upper fixed plate and male die in proper order. Lower die subassembly from top to bottom includes female die plate, edge ring, edge ring backing plate, lower fixed plate, lower die base, top plate, lower die foot and lower supporting plate in proper order. Male die and female die plate cooperate, are used for deep -drawing forming to sheet metal. The utility model male die and female die plate's accurate cooperation and the setting of edge ring have effectively guaranteed the flow uniformity of sheet metal in the deep -drawing process, have reduced the probability of the finished product appearance wrinkle, rupture and other defects significantly, have improved product pass rate.

Description

Technical Field

[0001] This utility model relates to the field of metal sheet forming technology, and in particular to a deep drawing die for producing water trays. Background Technology

[0002] Drain trays are common components widely used in home appliances, kitchen and bathroom products, and are usually made of thin metal sheets through a stamping and deep drawing process. Existing deep drawing dies may have problems during production, such as inaccurate positioning, wrinkling or cracking of the sheet metal during deep drawing, and difficulty in demolding the formed product, which affects production efficiency and product qualification rate.

[0003] Therefore, designing a deep drawing die for a drip tray that is structurally stable, precisely positioned, effectively prevents wrinkling of sheet metal, and facilitates demolding is of great significance for improving product quality and production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a deep drawing die for a water receiving tray, which aims to solve the problems of low positioning accuracy, unstable deep drawing quality, and low demolding efficiency in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A deep drawing die for a water receiving tray includes an upper die assembly and a lower die assembly. The upper die assembly, from top to bottom, includes an upper support plate, an upper die foot, an upper die base, an upper fixed plate, and a punch. The lower die assembly, from top to bottom, includes a concave die plate, a blank holder ring, a blank holder ring pad, a lower fixed plate, a lower die base, a top plate, a lower die foot, and a lower support plate. The punch cooperates with the concave die plate to perform deep drawing on the sheet metal.

[0007] Preferably, the upper die foot is located between the upper support plate and the upper die base to connect the upper die assembly and the stamping equipment, resulting in a stable and reliable structure.

[0008] Preferably, the punch is fixed to the lower surface of the upper fixed plate, which ensures the stability of the punch during the stamping process.

[0009] Preferably, the blank holder is positioned below the die plate to apply appropriate blank holder force to the edge of the sheet during the deep drawing process, effectively preventing wrinkling of the sheet during deep drawing.

[0010] Preferably, the pressure ring is supported on the lower fixed plate by the pressure ring pad, which provides stable support for the pressure ring.

[0011] Preferably, the lower die assembly also includes an ejector device, which consists of a top plate and an ejector rod (the specific structure is not shown in the figure) mounted thereon. After the drawing is completed, the ejector rod moves upward to smoothly eject the formed water receiving tray from the concave die, thereby improving production efficiency.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Stable structure and easy clamping: The design of the upper and lower die feet and the upper and lower support plates allows the die to be easily and stably installed on the stamping equipment, ensuring the stability of the stamping process.

[0014] High drawing quality: The precise fit between the punch and die, as well as the setting of the blank holder, effectively ensures the uniformity of sheet material flow during the drawing process, significantly reducing the probability of defects such as wrinkling and cracking in the finished product, and improving the product qualification rate.

[0015] Smooth demolding and high efficiency: By setting up ejection mechanisms such as top plates, the workpiece is automatically ejected after forming, which simplifies the operation, shortens the single stamping cycle, and improves the overall production efficiency. Attached Figure Description

[0016] Figure 1 This is a structural front view of a deep drawing die for a water receiving tray according to this utility model.

[0017] Figure 2 This is a top view of a deep drawing die for a water receiving tray according to this utility model.

[0018] Figure 3 This is a structural diagram of the upper support plate according to an embodiment of the present utility model.

[0019] Figure 4 This is a structural diagram of the upper mold base according to an embodiment of the present invention.

[0020] Figure 5 This is a structural diagram of the upper fixing plate according to an embodiment of the present utility model.

[0021] Figure 6 This is a structural diagram of the concave template according to an embodiment of the present invention.

[0022] Figure 7 This is a diagram of the punch structure according to an embodiment of the present invention.

[0023] Figure 8 This is a structural diagram of the pressure ring according to an embodiment of the present invention.

[0024] Figure 9 This is a structural diagram of the pressure ring pad of an embodiment of this utility model.

[0025] Figure 10 This is a structural diagram of the lower fixing plate according to an embodiment of the present utility model.

[0026] Figure 11 This is a structural diagram of the lower mold base according to an embodiment of the present utility model.

[0027] Figure 12This is a structural diagram of the top plate of an embodiment of the present utility model.

[0028] Figure 13 This is a structural diagram of the lower support plate according to an embodiment of the present utility model.

[0029] The markings in the diagram are: 1-upper support plate, 2-upper mold foot, 3-upper mold base, 4-upper fixed plate, 5-concave mold plate, 6-punch, 7-pressure ring, 8-pressure ring pad, 9-lower fixed plate, 10-lower mold base, 11-top plate, 12-lower mold foot, 13-lower support plate. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] like Figure 1-13 As shown, this utility model discloses a deep drawing die for a water receiving tray. The die mainly consists of an upper die assembly and a lower die assembly.

[0032] The upper die assembly is installed on the slide block of the stamping equipment. Its structure from top to bottom consists of: upper support plate 1, which supports the entire upper die assembly; upper die foot 2, which is used to fix the die on the stamping equipment; upper die base 3, which serves as the main base of the upper die; upper fixing plate 4, which is used to fix the core working parts; and punch 6, whose shape matches the inner cavity shape of the water receiving tray and is the main working part for deep drawing.

[0033] The lower die assembly is fixed on the worktable of the stamping equipment. Its structure from top to bottom consists of: a concave die plate 5, whose inner cavity shape matches that of the punch 6 to form a drawing cavity; a blank holder 7, located below the concave die plate 5, whose function is to hold down the edge of the sheet metal to be processed at the beginning of stamping to prevent wrinkling due to excessive material flow during the drawing process; a blank holder pad 8, which provides support for the blank holder 7; a lower fixing plate 9, used to fix the concave die plate 5 and the blank holder and other components; a lower die base 10, which serves as the main base of the lower die; a top plate 11, used to install the ejection device to eject the workpiece after stamping; a lower die foot 12, used to fix the lower die assembly on the worktable; and a lower support plate 13, which serves as the base of the entire lower die assembly.

[0034] The work process is as follows:

[0035] Material preparation and positioning: Place the metal sheet to be processed on the concave template 5 and the pressure ring 7 of the lower mold assembly.

[0036] Mold closing and blank holder pressing: The slide of the stamping equipment drives the upper mold assembly to move downward. Before the punch 6 contacts the sheet metal, the relevant components of the upper mold (not shown in the figure) first press the blank holder ring 7, so that it applies a preset blank holder force to the edge of the sheet metal.

[0037] Deep drawing: The upper die assembly continues to descend, and the punch 6 presses the sheet into the cavity of the concave die 5 to perform deep drawing, causing the sheet to plastically deform and form the shape of a water receiving tray.

[0038] Mold opening and ejection: After deep drawing is completed, the slide of the stamping equipment drives the upper mold assembly to move upward. At the same time, the top plate 11 and ejector rod in the lower mold assembly move upward, ejecting the formed water receiving tray from the concave mold plate 5 for easy removal.

[0039] This completes one work cycle. The present invention features a reasonable structural design, with clearly defined functions for each component, enabling efficient and stable production of high-quality water receiving trays.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A deep drawing die for a water receiving tray, characterized in that, Includes upper mold assembly and lower mold assembly; The upper mold assembly includes, from top to bottom, an upper support plate (1), an upper mold foot (2), an upper mold base (3), an upper fixing plate (4), and a punch (6). The lower mold assembly includes, from top to bottom, a concave mold plate (5), a pressure ring (7), a pressure ring pad (8), a lower fixing plate (9), a lower mold base (10), a top plate (11), a lower mold foot (12), and a lower support plate (13). The punch (6) cooperates with the die (5) to perform deep drawing on the sheet metal.

2. The deep drawing die for the water receiving tray according to claim 1, characterized in that, The upper die foot (2) is located between the upper support plate (1) and the upper die base (3) and is used to connect the upper die assembly and the stamping equipment.

3. The deep drawing die for the water receiving tray according to claim 1, characterized in that, The punch (6) is fixed to the lower surface of the upper fixing plate (4).

4. The deep drawing die for the water receiving tray according to claim 1, characterized in that, The pressure ring (7) is located below the concave template (5) and is used to press the edge of the sheet metal during the deep drawing process.

5. The deep drawing die for the water receiving tray according to claim 4, characterized in that, The pressure ring (7) is supported on the lower fixing plate (9) by the pressure ring pad (8).

6. The deep drawing die for the water receiving tray according to claim 1, characterized in that, The lower die assembly also includes an ejector device disposed on the top plate (11), which passes through the lower die base (10) and the lower fixing plate (9) and is used to eject the formed water receiving tray from the concave die plate (5) after deep drawing is completed.

7. The deep drawing die for the water receiving tray according to claim 1, characterized in that, The lower mold foot (12) is disposed between the lower mold base (10) and the lower support plate (13) for fixing the lower mold assembly on the worktable.

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