Mould for locally thickening appearance of product

Abstract

The utility model provides a mould for locally thickening the appearance of a product, which comprises an upper mould and a lower mould, the upper mould comprises an upper mould base, an upper padding plate, an upper clamping plate, a stopping plate, a stripper plate, a guide pillar, an equal-height sleeve and a spring, the upper mould base, the upper padding plate, the upper clamping plate, the stopping plate and the stripper plate are sequentially stacked and fastened, and the guide pillar, the equal-height sleeve and the spring are arranged in the upper mould. The lower die comprises a lower die plate, a lower base plate, a lower die base and a material ejecting device arranged in the lower die, all of which are sequentially stacked and fastened. The upper die and the lower die are guided by a guide post; the mold is characterized in that the mold further comprises a local thickening module assembly, and the local thickening module assembly comprises an extrusion thickening module assembly and a leveling module assembly which are installed according to the working procedures; the material extruding and thickening module assembly and the leveling module assembly are installed in stations of the upper die and the lower die, and an upper clamping plate, a stopping plate and a stripper plate in the upper die are all provided with through holes or grooves for installing the material extruding and thickening module assembly and the leveling module assembly in a matched mode. A lower die plate in the lower die is provided with a through hole or a groove for mounting the extrusion thickening module assembly and the leveling module assembly in a matched manner; compared with the prior art, the die number can be reduced, die development cost is reduced, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of stamping dies, and in particular relates to a die with a partially thickened product shape. Background Art

[0002] Punching dies (also known as stamping dies) are special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during cold stamping. They are called cold stamping dies (commonly known as cold stamping dies). Punching (also known as stamping) is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to separate or plastically deform it, thereby obtaining the desired parts.

[0003] At present, when product iteration requires local thickening of the product shape, the usual solution is to open another engineering mold to extrude the material thickness. This molding process requires a large number of molds, and the production efficiency of extruding the thickness with an engineering mold is low, the stamping production cost increases, and it is difficult to meet the mass production needs of the product. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, the utility model provides a mold with a partially thickened product shape. The technical solution of the utility model is as follows:

[0005] A mold with a partially thickened product shape, comprising an upper mold and a lower mold, wherein the upper mold comprises an upper mold base, an upper pad, an upper clamping plate, a stop plate, a stripping plate, and a guide column, a sleeve of equal height, and a spring built into the upper mold, which are stacked and fastened in sequence; the lower mold comprises a lower mold plate, a lower pad, a lower mold base, and a material ejecting device built into the lower mold, which are stacked and fastened in sequence; the upper mold and the lower mold are guided by guide columns;

[0006] The mold further comprises a local thickening module assembly, which comprises an extrusion thickening module assembly and a leveling module assembly installed according to the process; the extrusion thickening module assembly and the leveling module assembly are installed in the workstations of the upper mold and the lower mold, and the upper clamping plate, the stop plate and the stripping plate in the upper mold are all provided with through holes or grooves adapted to install the extrusion thickening module assembly and the leveling module assembly; the lower mold plate in the lower mold is provided with through holes or grooves adapted to install the extrusion thickening module assembly and the leveling module assembly;

[0007] The extrusion thickening module assembly includes a stripper module thickening insert, a lower template thickening insert, an extrusion punch, and a lower template extrusion insert that are assembled in combination; the lower end face of the stripper module thickening insert is grooved, the groove depth is 0.3-0.5mm, and the volume of the grooved area is at least 1.2 times the volume of the product to be thickened; the upper end face of the lower template thickening insert is grooved, the groove depth is 0.5-0.7mm, the front end angle of the groove is 30-45°, and the volume of the grooved area is at least 1.5 times the volume of the product to be thickened; the lower end face of the extrusion punch is provided with a straight body part and a transition angle, and the transition angle is 70-80°; the horizontal length of the straight body part is consistent with the horizontal length of the upper end face of the lower template extrusion insert, and the height of the straight body part is 0.1-1.0mm;

[0008] The leveling module assembly includes a stripping plate leveling insert, a lower template leveling insert, a leveling punch, and a lower template top material insert that are assembled in combination; the leveling module assembly is required to be able to perform leveling processing on the product processed by the extrusion thickening module assembly.

[0009] The upper die base, upper pad and upper clamping plate are stacked and fastened in sequence; the stop plate and the stripper plate are stacked and fastened, and the lower end surface of the stop plate is connected to the upper end surface of the stripper plate; after the stop plate and the stripper plate are stacked and fastened, they are connected to the upper die base as a whole through a contour sleeve, the head of the contour sleeve is fixed in the upper die base, and the threaded part of the contour sleeve is connected to the stripper plate; one end of the spring is connected to the upper die base, and the other end is connected to the stop plate.

[0010] The lower mold plate, the lower pad and the lower mold base are stacked and fastened in sequence; two groups of ejecting devices are installed in the lower mold, one group of ejecting devices is connected to the lower mold stopper, and the other group of ejecting devices is connected to the lower mold ejecting insert.

[0011] The ejection device includes a stop screw, a spring, and an ejection pin. The stop screw is fixed in the lower mold base. One end of the spring is cooperated with the upper end of the stop screw, and the other end is connected to the lower end of the ejection pin. The upper end of the ejection pin is connected to the lower mold extrusion insert or the lower mold thickening insert.

[0012] One end of the guide pin is fixed inside the upper pad, and the other end passes through the punch clamping plate, the stop plate, and the stripping plate, and is introduced into the inner guide sleeve of the lower die that matches the inner guide pin when the die is closed.

[0013] The upper end face of the stripper plate module thickening insert is fixedly mounted on the lower end face of the stop plate; the upper end of the extrusion punch is fixedly mounted on the lower end face of the upper pad, and the extrusion punch is installed close to the right side face of the stripper plate module thickening insert; the lower end face of the lower template thickening insert is fixedly mounted on the upper end face of the lower pad; the lower end face of the lower template extrusion insert is connected to the upper end of the ejection pin, and the lower template extrusion insert is installed close to the right side face of the lower template thickening insert.

[0014] Preferably, the lower end face of the stripping plate module thickening insert is grooved with a groove depth of 0.3mm, and the volume of the grooved area is 1.2 times the volume of the product to be thickened; the upper end face of the lower template thickening insert is grooved with a groove depth of 0.5mm, the front end angle of the groove is 30, and the volume of the grooved area is 1.5 times the volume of the product to be thickened; the lower end face of the extrusion punch is provided with a straight body part and a transition angle, and the transition angle is 70°; the horizontal length of the straight body part is consistent with the horizontal length of the upper end face of the lower template extrusion insert, and the height of the straight body part is 0.1mm.

[0015] The upper end surface of the stripper plate leveling insert is fixedly mounted on the lower end surface of the stop plate; the lower end surface of the lower template leveling insert is fixedly mounted on the upper end surface of the lower pad; the upper end of the leveling punch is fixedly mounted on the lower end surface of the upper pad, and the leveling punch is installed tightly against the right side surface of the stripper plate leveling insert; the lower end surface of the lower template ejecting insert is connected to the upper end of the ejecting pin, and the lower template ejecting insert is installed tightly against the right side surface of the lower template leveling insert.

[0016] Beneficial Effects

[0017] The utility model provides a mold for locally thickening the appearance of a product, and the mold can locally thicken the appearance of the product through two steps. At present, when the product iteration requires the appearance of the product to be locally thickened, the solution adopted in the prior art is to open another engineering mold to extrude the material thickness. This molding process requires a large number of molds, and the production efficiency of extruding the thickness with the engineering mold is low, and the stamping production cost increases, which makes it difficult to meet the mass production needs of the product. The utility model provides a mold for locally thickening the appearance of a product, and the mold has a simple structure and is easy to assemble and operate. Compared with the prior art, it can reduce the number of molds, reduce the mold development cost, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a mold with a locally thickened product shape provided in an embodiment of the utility model.

[0019] Figure 2 It is a schematic diagram of local details of a mold with a locally thickened product shape provided in an embodiment of the utility model.

[0020] Description of the markings in the figure:

[0021] 1——Upper die seat

[0022] 2——Upper pad

[0023] 3 - Upper splint

[0024] 4——Stop plate

[0025] 5——Stripping plate

[0026] 6——Download Template

[0027] 7——Lower pad

[0028] 8——Lower die seat

[0029] 9——Guide pillar

[0030] 10 – Spring

[0031] 11——Conformal sleeve

[0032] 12——Thickening insert of stripper plate module

[0033] 13——Extrusion punch

[0034] 14——Stripping plate leveling insert

[0035] 15——Leveling punch

[0036] 16——Thickened insert of lower template

[0037] 17——Lower template extrusion insert

[0038] 18——Lower template top material insert

[0039] 19——Lower template leveling insert

[0040] 20——Ejector pin (extrusion thickening module component)

[0041] 21——Ejector spring (extrusion thickening module component)

[0042] 22——Set screw (extrusion thickening module assembly)

[0043] 23——Ejector pin (leveling module assembly)

[0044] 24——Ejector spring (leveling module assembly)

[0045] 25——Set screw (leveling module assembly) DETAILED DESCRIPTION

[0046] Example

[0047] Combination Figure 1 , Figure 2 The structure and working principle of a mold with locally thickened product shape provided by the utility model are described.

[0048] The utility model provides a mold with a partially thickened product shape.

[0049] Includes upper die, lower die and local thickening module components

[0050] The upper die comprises an upper die base (1), an upper pad (2), an upper clamping plate (3), a stop plate (4), a stripping plate (5), a guide column (9), a sleeve of equal height (11), and a spring (10);

[0051] The lower die comprises a lower die plate (6), a lower pad (7), a lower die base (8), and a material ejection device (including a stop screw, a material ejection pin, and a spring);

[0052] The upper die base (1), the upper pad (2), and the upper clamping plate (3) are stacked and fastened in sequence;

[0053] The stop plate (4) and the stripping plate (5) are stacked and fastened, and the lower end surface of the stop plate (4) is connected to the upper end surface of the stripping plate (5);

[0054] After the stop plate (4) and the stripper plate (5) are stacked and fastened, they are connected to the upper die seat (1) as a whole through a contour sleeve (11), the head of the contour sleeve (11) is fixed in the upper die seat (1), and the threaded portion of the contour sleeve (11) is connected to the stripper plate (5); one end of the spring (10) is connected to the upper die seat (1), and the other end is connected to the stop plate (4);

[0055] The lower mold plate (6), the lower pad (7), and the lower mold base (8) are stacked and fastened in sequence;

[0056] Two sets of ejection devices are installed in the lower die, one set of ejection devices is connected to the lower die stopper, and the other set of ejection devices is connected to the lower die ejection insert (18);

[0057] The ejection device comprises a stop screw, a spring and an ejection pin, wherein the stop screw is fixed in the lower die seat (8), one end of the spring is matched with the upper end of the stop screw, and the other end is connected to the lower end of the ejection pin, and the upper end of the ejection pin is connected to the lower die plate extrusion insert (17) or the lower die plate thickening insert (16);

[0058] One end of the guide pin is fixed inside the upper pad (2), and the other end passes through the upper clamping plate (3), the stop plate (4), and the stripper plate (5), and is introduced into a guide sleeve provided on the lower mold and matched with the guide pin (9) when the mold is closed;

[0059] The local thickening module assembly comprises an extrusion thickening module assembly and a leveling module assembly; the extrusion thickening module assembly and the leveling module assembly are installed in corresponding positions of the upper die and the lower die, and the upper clamping plate (3), the stop plate (4), and the stripping plate (5) in the upper die are all provided with through holes or grooves adapted to install the extrusion thickening module assembly and the leveling module assembly; the lower template (6) in the lower die is provided with through holes or grooves adapted to install the extrusion thickening module assembly and the leveling module assembly;

[0060] The extrusion thickening module assembly comprises a stripper plate module thickening insert (12), a lower template thickening insert (16), an extrusion punch (13), and a lower template extrusion insert (17);

[0061] The upper end surface of the stripper plate module thickening insert (12) is fixedly mounted on the lower end surface of the stop plate (4);

[0062] The upper end of the extrusion punch (13) is fixedly mounted on the lower end surface of the upper pad (2), and the extrusion punch (13) is mounted closely to the right side surface of the stripper plate module thickening insert (12);

[0063] The lower end surface of the lower template thickening insert (16) is fixedly mounted on the upper end surface of the lower pad (7);

[0064] The lower end surface of the lower template extrusion insert (17) is connected to the upper end of the ejection pin, and the lower template extrusion insert (17) is installed closely to the right side surface of the lower template thickening insert (16);

[0065] The lower end surface of the stripper plate module thickening insert (12) is grooved, and the groove depth ( Figure 2 The middle depth X) is 0.3-0.5 mm, and the volume of the grooved area is at least 1.2 times the volume of the product to be thickened;

[0066] The upper end surface of the thickened insert (16) of the lower template is grooved, and the groove depth ( Figure 2 The middle depth Y) is 0.5~0.7mm, and the front angle of the slot ( Figure 2 The middle angle C) is 30°, and the volume of the slotted area is at least 1.5 times the volume of the product to be thickened;

[0067] The lower end surface of the extrusion punch (13) is provided with a straight body portion and a transition angle ( Figure 2 Middle angle B), the transition angle is 70°; the horizontal length of the straight part is consistent with the horizontal length of the upper end surface of the lower template extrusion insert (17), and the height of the straight part is 0.1-1.0 mm;

[0068] The leveling module assembly comprises a stripper plate leveling insert (14), a lower template leveling insert (19), a leveling punch (15), and a lower template top material insert (18);

[0069] The upper end surface of the stripper plate leveling insert (14) is fixedly mounted on the lower end surface of the stop plate (4);

[0070] The lower end surface of the lower template leveling insert (19) is fixedly mounted on the upper end surface of the lower pad (7);

[0071] The upper end of the leveling punch (15) is fixedly mounted on the lower end surface of the upper pad (2), and the leveling punch (15) is mounted close to the right side surface of the stripper plate leveling insert (14);

[0072] The lower end surface of the lower template ejection insert (18) is connected to the upper end of the ejection pin, and the lower template ejection insert (18) is installed closely to the right side surface of the lower template leveling insert (19);

[0073] The leveling module assembly performs leveling processing on the rough product material processed by the extrusion thickening module assembly.

[0074] The utility model provides a mold for locally thickening the product shape. The mold structure can sequentially thicken the product shape locally through a thickening process and a leveling process:

[0075] Thickening process steps:

[0076] S1, the mold enters the working state, and the material to be processed is placed into the mold;

[0077] S2, when the material to be processed reaches the extrusion thickening treatment area, the left side of the lower template extrusion insert (17) blocks the material to be processed;

[0078] S3, the upper die of the mold moves downward, the thickened insert (12) of the stripper module presses the material, and the straight body part of the extrusion punch (13) blocks the material to be processed;

[0079] S4, the upper die of the die continues to move downward, the extrusion punch (13) extrudes the material to be processed, and the material to be processed slides into the grooved area along the front end angle C of the groove on the upper end surface of the thickened insert (16) of the lower die plate and the transition angle B of the lower end surface of the extrusion punch (13) under the extrusion of the die;

[0080] S5, after the upper and lower molds are closed, the local thickening of the product shape is completed;

[0081] The leveling process is a material leveling process commonly used in the prior art. The leveling module assembly in the utility model is only required to be able to cooperate with the product to perform leveling processing.

[0082] The utility model provides a mold for locally thickening the appearance of a product, and the mold can locally thicken the appearance of the product through two steps. At present, when the product iteration requires the appearance of the product to be locally thickened, the solution adopted in the prior art is to open another engineering mold to extrude the material thickness. This molding process requires a large number of molds, and the production efficiency of extruding the thickness with the engineering mold is low, and the stamping production cost increases, which makes it difficult to meet the mass production needs of the product. The utility model provides a mold for locally thickening the appearance of a product, and the mold has a simple structure and is easy to assemble and operate. Compared with the prior art, it can reduce the number of molds, reduce the mold development cost, and improve production efficiency.

Claims

1. A mold with a partially thickened product shape, comprising an upper mold and a lower mold, wherein the upper mold comprises an upper mold base, an upper pad, an upper clamping plate, a stop plate, a stripping plate, and a guide column, a sleeve of equal height, and a spring built into the upper mold, which are stacked and fastened in sequence; the lower mold comprises a lower mold plate, a lower pad, a lower mold base, and a material ejecting device built into the lower mold, which are stacked and fastened in sequence; the upper mold and the lower mold are guided by guide columns; It is characterized in that The mold further comprises a local thickening module assembly, which comprises an extrusion thickening module assembly and a leveling module assembly installed according to the process; the extrusion thickening module assembly and the leveling module assembly are installed in the workstations of the upper mold and the lower mold, and the upper clamping plate, the stop plate and the stripping plate in the upper mold are all provided with through holes or grooves adapted to install the extrusion thickening module assembly and the leveling module assembly; the lower mold plate in the lower mold is provided with through holes or grooves adapted to install the extrusion thickening module assembly and the leveling module assembly; The extrusion thickening module assembly includes a stripper module thickening insert, a lower template thickening insert, an extrusion punch, and a lower template extrusion insert that are assembled in combination; the lower end face of the stripper module thickening insert is grooved, the groove depth is 0.3-0.5mm, and the volume of the grooved area is at least 1.2 times the volume of the product to be thickened; the upper end face of the lower template thickening insert is grooved, the groove depth is 0.5-0.7mm, the front end angle of the groove is 30-45°, and the volume of the grooved area is at least 1.5 times the volume of the product to be thickened; the lower end face of the extrusion punch is provided with a straight body part and a transition angle, and the transition angle is 70-80°; the horizontal length of the straight body part is consistent with the horizontal length of the upper end face of the lower template extrusion insert, and the height of the straight body part is 0.1-1.0mm; The leveling module assembly includes a stripping plate leveling insert, a lower template leveling insert, a leveling punch, and a lower template top material insert that are assembled in combination; the leveling module assembly is required to be able to perform leveling processing on the product processed by the extrusion thickening module assembly.

2. The mold according to claim 1, characterized in that The upper die base, upper pad and upper clamping plate are stacked and fastened in sequence; the stop plate and the stripper plate are stacked and fastened, and the lower end surface of the stop plate is connected to the upper end surface of the stripper plate; after the stop plate and the stripper plate are stacked and fastened, they are connected to the upper die base as a whole through a contour sleeve, the head of the contour sleeve is fixed in the upper die base, and the threaded part of the contour sleeve is connected to the stripper plate; one end of the spring is connected to the upper die base, and the other end is connected to the stop plate.

3. The mold according to claim 1, characterized in that The lower mold plate, the lower pad and the lower mold base are stacked and fastened in sequence; two groups of ejecting devices are installed in the lower mold, one group of ejecting devices is connected to the lower mold stopper, and the other group of ejecting devices is connected to the lower mold ejecting insert.

4. The mold according to claim 3, characterized in that The ejection device includes a stop screw, a spring, and an ejection pin. The stop screw is fixed in the lower mold base. One end of the spring is cooperated with the upper end of the stop screw, and the other end is connected to the lower end of the ejection pin. The upper end of the ejection pin is connected to the lower mold extrusion insert or the lower mold thickening insert.

5. The mold according to claim 1, characterized in that One end of the guide pin is fixed inside the upper pad, and the other end passes through the upper clamping plate, the stop plate and the stripping plate, and is introduced into a guide sleeve provided on the lower mold and matched with the guide pin when the mold is closed.

6. The mold according to claim 1, characterized in that The upper end face of the stripper plate module thickening insert is fixedly mounted on the lower end face of the stop plate; the upper end of the extrusion punch is fixedly mounted on the lower end face of the upper pad, and the extrusion punch is installed close to the right side face of the stripper plate module thickening insert; the lower end face of the lower template thickening insert is fixedly mounted on the upper end face of the lower pad; the lower end face of the lower template extrusion insert is connected to the upper end of the ejection pin, and the lower template extrusion insert is installed close to the right side face of the lower template thickening insert.

7. The mold according to claim 6, characterized in that The lower end face of the stripper plate module thickening insert is grooved with a groove depth of 0.3mm, and the volume of the grooved area is 1.2 times the volume of the product that needs to be thickened; the upper end face of the lower template thickening insert is grooved with a groove depth of 0.5mm, the front end angle of the groove is 30, and the volume of the grooved area is 1.5 times the volume of the product that needs to be thickened; the lower end face of the extrusion punch is provided with a straight body part and a transition angle, and the transition angle is 70°; the horizontal length of the straight body part is consistent with the horizontal length of the upper end face of the lower template extrusion insert, and the height of the straight body part is 0.1mm.

8. The mold according to claim 1, characterized in that The upper end surface of the stripper plate leveling insert is fixedly mounted on the lower end surface of the stop plate; the lower end surface of the lower template leveling insert is fixedly mounted on the upper end surface of the lower pad; the upper end of the leveling punch is fixedly mounted on the lower end surface of the upper pad, and the leveling punch is installed tightly against the right side surface of the stripper plate leveling insert; the lower end surface of the lower template ejecting insert is connected to the upper end of the ejecting pin, and the lower template ejecting insert is installed tightly against the right side surface of the lower template leveling insert.

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