CN202725834U - Freezer handle stamping die - Google Patents

Abstract

The utility model relates to a freezer handle stamping die, which is a continuous stamping die and comprises an upper die and a lower die which are respectively integrally formed; the upper die comprises a blanking forming upper die, a stretching forming upper die, a side forming upper die, a wrapping forming upper die and a separating forming upper die which are sequentially arranged; the forming device comprises a lower blanking forming die, a lower stretching forming die, a lower side forming die, a lower wrapping forming die and a lower separation forming die which are sequentially arranged. The utility model discloses stamping die simple structure, compactness go up mould and lower mould and be a body structure and collect multiple operation mould in an organic whole, are showing the punching press efficiency that has improved the product, and product punching press is effectual moreover, and the steady quality has improved the production efficiency of product, has reduced manufacturing cost.

Description

Freezer handle stamping die

technical field

The utility model belongs to the technical field of punching, in particular to a punching die for a freezer handle.

Background technique

Stamping molds are usually involved in the production process of freezer handles. The existing freezer handles require a bright and beautiful appearance, uniform gaps at the inner joints, consistent heights and no drop, so as to meet the requirements of automatic welding and appearance. The existing freezer handles are usually produced by multiple single stations. In order to improve production efficiency and save production costs, customers require that it is best to use a multi-station continuous production mode. However, in this production mode, freezer handles Stamping dies will encounter the following problems:

1. Since the datum plane of the product requires a parallelism of 0.25 and the tolerance is too small, it is necessary to consider the fine trimming after forming, which will inevitably cause troublesome processes and reduce efficiency;

2. Since the product is a typical product similar to a round tube, when using multi-station continuous production, the structural space of the stamping die is limited to a certain extent, and it is relatively difficult to form the inner seam;

3. Due to the shape change trend at both ends of the product, wrinkling often occurs on the outer side of the product end during the existing stretching process, and the appearance quality of the product will be affected;

4. In the key step of the side forming process, since the outer side of the mold adopts a conventional slider structure, and the size of the mold is limited, this will inevitably affect the demoulding efficiency and quality of the product;

5. In the key step of wrapping molding, the shape changes drastically, and cracks usually occur on the inner side of the product end; if hollow molding is used on the inner side of the product end to form a straight line, the product will not be formed properly.

As can be seen above, it is necessary to further improve the prior art.

Contents of the invention

The utility model aims to solve the problems that the existing freezer handle stamping die has complex structure, high cost, poor stamping effect, low efficiency, and cannot meet the high quality requirements, and proposes a simple and compact mechanism, low cost, easy processing, and high efficiency. High, good stamping effect, can meet the product quality requirements of the freezer handle stamping die.

The utility model is achieved through the following technical solutions:

The above-mentioned stamping die for the handle of a freezer is a continuous stamping die, including an upper mold and a lower mold that are integrally formed respectively; mold, wrap molding upper mold and separation molding upper mold; the lower mold includes a blanking molding lower mold, a stretch forming lower mold, a side forming lower mold, a wrapping molding lower mold and a separation molding lower mold arranged in sequence.

The freezer handle stamping die, wherein: the blanking forming upper die includes a trimming and punching punch; the blanking forming lower die is matched with the blanking forming upper die, including matching with the trimming and punching punch Cutting edge punching die.

The freezer handle stamping die, wherein: the stretch forming upper die includes a drawing die; the stretch forming lower die is located on one side of the blanking forming lower die, and includes a A stretching punch, a stretching blank holder and a nitrogen spring arranged between the stretching punch and the stretching blank holder.

The freezer handle stamping die, wherein: the side forming upper die is located on one side of the stretch forming upper die, and includes a clamping plate and wedge driving blocks arranged on both sides of the clamping plate; The forming lower die is located on one side of the stretch forming lower die, and includes a side forming die backing plate, a wedge sliding block, a back support, a guide cover plate, a slider return spring, a lower forming male die and a stripping thimble.

The freezer handle stamping die, wherein: the wedge sliding block and the back support are both arranged on the side forming mold backing plate, the back supports are located on both sides of the bottom end of the wedge sliding block; the guide The cover plate is arranged on both sides of the top of the wedge sliding block; the return spring of the slide block, the lower forming male mold and the stripping thimble are matched and arranged on the inner side of the wedge sliding block.

The freezer handle stamping die, wherein: the wrap molding upper mold is located on the side of the side molding upper mold and includes an upper molding die; the wrap molding lower mold is located on the side of the side molding lower mold and includes The lower molding block matched with the upper molding die.

The freezer handle stamping die, wherein: the separate molding upper die is located on the side of the wrap molding upper die, including a separate punch; the separate molding lower die is located on the side of the wrap molding lower die, including the The separation die matched with the separation punch described above.

The freezer handle stamping die, wherein: the lower mold also includes a guide mechanism arranged on a group of opposite sides in the length direction of the lower mold, the guide mechanism includes a guide rod and a guide block; the blanking A set of guide rods and guide blocks are provided at both ends of the lower mold for forming, the lower mold for stretch forming, the lower mold for side forming and the lower mold for wrapping molding.

Beneficial effect:

The stamping mold for the handle of the freezer of the utility model is a continuous stamping mold, and the upper mold and the lower mold are all in one structure, that is, it integrates multi-process molds. Among them, the design of the blanking forming upper mold and the blanking forming lower mold can effectively ensure The punching accuracy of the product; the design of the stretch forming upper die and the stretch forming lower die can effectively avoid local wrinkling of the product and ensure the appearance quality of the product; the side forming upper die and the side forming lower die adopt a wedge structure, and The side forming lower mold is equipped with ejector pins, which can effectively solve the problem of limited space of the mold; the dovetail slider set on the wrap molding lower mold can accurately form the product in place; the design of the separate forming upper mold and the separate forming lower mold can Quickly and accurately separate the product from the waste. The whole stamping die has a compact and symmetrical structure, high efficiency and low manufacturing difficulty, which not only improves the stamping efficiency and quality of the workpiece, but also reduces the manufacturing cost of the product.

Description of drawings

Fig. 1 is a structural schematic diagram of a stamping die for a freezer handle of the present invention.

Fig. 2 is a structural schematic diagram of the lower die of the utility model freezer handle stamping die.

Fig. 3 is a partial structural schematic diagram of the side-forming upper mold and the side-forming lower mold of the utility model freezer handle stamping mold after cooperation.

Fig. 4 is a schematic diagram of the local structure of the lower die for wrapping molding of the stamping die for the handle of the freezer of the present invention.

Fig. 5 is a cross-sectional view of the partial structure of the lower die for wrapping molding of the stamping die for the freezer handle of the utility model.

Detailed ways

As shown in Figures 1 to 5, the utility model freezer handle stamping mold is a continuous mold, including an upper mold 1 and a lower mold 2 matched with the upper mold.

The upper mold 1 has an integrated structure, including a blanking molding upper mold 11, a stretch forming upper mold 12, a side forming upper mold 13, a wrapping molding upper mold 14 and a separation molding upper mold 15, which are sequentially arranged.

The blanking forming upper die 11 is located at one end of the upper die 1 and includes a trimming and punching punch 111;

Stretch forming upper die 12 is located on one side of blanking forming upper die 11, including drawing die 121;

The upper mold 13 for side forming is located on one side of the upper mold 12 for stretching, and includes a clamping plate 131 and a pair of wedge driving blocks 132. The center of the bottom of the clamping plate 131 is inwardly recessed to form a guide groove with a cross-section roughly in the shape of a notched ellipse. The wedge drive blocks 132 are arranged on both sides of the pressure plate 131, wherein, each wedge drive block 132 is provided with a slope inside the bottom end;

The upper mold 14 for wrapping is positioned at one side of the upper mold 13 for stretching, and includes an upper molding die 141;

The separate forming upper die 15 is located on one side of the wrapping forming upper die 14 , that is, on the other end of the upper die 1 opposite to the blanking forming upper die 11 , and the separate forming upper die 15 includes a separating punch 151 .

Lower mold 2 is also an integral structure, which includes blanking molding lower mold 21, stretch forming lower mold 22, side forming lower mold 23, wrapping molding lower mold 24, separation molding lower mold 25 and lower mold located at the lower mold that are arranged in sequence. 2 a set of guide mechanisms 26 on opposite sides;

The blanking forming lower mold 21 is located at one end of the lower mold 2, and it is set to match the blanking forming upper mold 11 of the upper mold 1. The blanking forming lower mold 21 includes a trimming and punching punch 111 matched with the blanking forming upper mold 11 trimming punching die 211;

Stretch forming lower die 22 is positioned at blanking forming lower die 21 side, and it is arranged with the stretch forming upper die 12 of upper die 1, and stretch forming lower die 22 comprises stretching punch 221, stretching blank holder 222 and nitrogen spring 223, the stretching punch 221 is located at the middle part of the upper side of the stretching blank holder 222 and matches with the stretching die 121 of the stretch forming upper die 12, and the nitrogen spring 223 is located at the stretching punch 221 and Stretch between the binder rings 222.

The side forming lower die 23 is located on one side of the stretch forming lower die 22, and it is arranged to match the side forming upper die 13 of the upper die 1. The side forming lower die 23 includes a side forming die backing plate 231, a wedge sliding block 232, a back Holder 233, slide block return spring 234, guide cover plate 235, lower forming male die 236 and stripping thimble 237; Inclined wedge sliding block 232 is a pair that is symmetrically arranged on the side forming mold backing plate 231, and it and the side forming upper The wedge drive block 132 of the mold 13 is matched, and the outside of the top of each wedge slide block 232 is provided with a slope matching the inside slope of the bottom end of the wedge drive block 132; Both sides of the bottom end of the wedge sliding block 232; the slider return spring 234 is symmetrically arranged on the opposite inner side of the oblique wedge sliding block 232; the guide cover plate 235 is symmetrically arranged on both sides of the top of the oblique wedge sliding block 232; Yes, it is set on the inner side of the wedge sliding block 232, that is, penetrates from the gap between a pair of wedge sliding blocks 232; The gap between them penetrates, and can expand and contract back and forth in the gap between a pair of lower forming male molds 236 under the promotion of the hydraulic cylinder.

Wrap molding lower mold 24 is positioned at one side of side molding lower mold 23, and it is arranged with the wrap molding upper mold 14 of upper mold 1, and wrap molding lower mold 24 comprises wrap molding backing plate 241, mold base 242, lower molding block 243, Dovetail sliding block 244, slider return spring 245 and sliding block fixing seat 246, the mold base 242 is matched and arranged on the wrap molding backing plate 241; the lower forming block 243 is matched and arranged on the upper side of the mold holder 242 and is wrapped and formed with the upper mold 1 The upper molding die 141 of the upper mold 14 is matched; the dovetail sliding block 244 is matched and arranged on the end of the lower molding block 243, and is connected with the mold base 242 through the slider return spring 245; the sliding block fixing seat 246 is matched and arranged on the dovetail sliding block 244 at one end.

The separation forming lower die 25 is located on one side of the wrapping forming lower die 24, that is, on the other end of the lower die 2 opposite to the blanking punching forming lower die 21, which is matched with the separation forming upper die 15, and the separation forming lower die The mold 25 includes a separation die 251 that is symmetrical to both sides of one end of the lower die 2, and the separation die 251 matches the separation punch 151 of the upper die 15 that is separated and formed on the upper die 1;

The guide mechanism 26 is located on one group of opposite sides in the lengthwise direction of the lower die 2, and includes a guide bar 261 and a guide block 262 for coiling, one of the two ends of the trimming and punching die 211 of the blanking forming lower die 21. Group guide bar 261 and guide block 262, guide block 262 is located at guide bar 261 one side;

Wherein, a set of guiding guides are located at both ends of the stretch blank holder 222 of the lower die 22 for stretch forming, at both ends of the backing plate 231 of the lower die 23 for side forming, and at the two ends of the lower die 24 for wrapping. The rod 261 and the guide block 262, the guide block 262 is located on the guide rod 261.

The utility model is a continuous stamping die with a simple, compact and symmetrical structure design. The upper die and the lower die are integrated and integrate multi-process dies, which significantly improves the stamping efficiency of the product, and the product has good stamping effect and stable quality. The production efficiency of the product is improved and the production cost is reduced.

Claims (8)

1. reach in freezer handle diel is characterized in that: described mould is continuous stamping die, comprises respectively integrated upper die and lower die;

Described blanking shaping upper, drawing and forming patrix, side shaping upper, parcel shaping upper and the separation shaping upper that comprises successively order setting;

Described counterdie comprises blanking moulding counterdie, drawing and forming counterdie, side moulding counterdie, the parcel moulding counterdie of successively order setting and separates the moulding counterdie.

2. reach in freezer handle as claimed in claim 1 diel is characterized in that: described blanking shaping upper comprises the edge-cutting and hole-punching punch; Described blanking moulding counterdie and described blanking shaping upper coupling comprise the edge-cutting and hole-punching die that is complementary with described edge-cutting and hole-punching punch.

3. reach in freezer handle as claimed in claim 1 diel is characterized in that: described drawing and forming patrix is positioned at and comprises the stretching die; Described drawing and forming counterdie comprises and the stretching convex die of described stretching die coupling, stretch blank holder and be located at described stretching convex die and the stretching blank holder between nitrogen spring.

4. reach in freezer handle as claimed in claim 1 diel is characterized in that: what described side shaping upper comprised holding pad and was located at described holding pad both sides tiltedly carves drive block; Described side moulding counterdie comprises side shaping mould backing plate, tiltedly carves sliding shoe, back bracket, defelctor apron, slide block retracting spring, compacted under male model and take off the material thimble.

5. reach in freezer handle as claimed in claim 4 diel is characterized in that: describedly tiltedly carve sliding shoe and back bracket all is located on the described side shaping mould backing plate, described back bracket is positioned at described both sides of tiltedly carving the sliding shoe bottom; Described defelctor apron is located at described both sides of tiltedly carving the sliding shoe top; Described slide block retracting spring, compacted under male model and take off material thimble coupling and be arranged at the described sliding shoe inboard of tiltedly carving.

6. reach in freezer handle as claimed in claim 1 diel is characterized in that: described parcel shaping upper comprises molding concave die; Described parcel moulding counterdie comprises the compacted under piece with described upper molding concave die coupling.

7. reach in freezer handle as claimed in claim 1 diel is characterized in that: described separation shaping upper comprises the separation punch; Described separation moulding counterdie comprises and the described die that separates that separates the punch coupling.

8. such as the diel of the arbitrary described reach in freezer handle of claim 1 to 7, it is characterized in that: described counterdie also comprises the guiding mechanism on one group of relative side being located at described counterdie length direction, and described guiding mechanism comprises guide post and guide pad;

The two ends of described blanking moulding counterdie, drawing and forming counterdie, side moulding counterdie and parcel moulding counterdie are equipped with one group of described guide post and guide pad.

Images