CN212525687U

CN212525687U - Novel door leaf knurling mould structure

Info

Publication number: CN212525687U
Application number: CN202020800027.XU
Authority: CN
Inventors: 朱荣焜
Original assignee: Chengdu Hele Doors Co ltd
Current assignee: Chengdu Hele Doors Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2021-02-12
Anticipated expiration: 2030-05-14

Abstract

The utility model discloses a novel door leaf knurling mould structure, which comprises an upper die, the lower mould, go up the cover half, lower cover half mold insert, elastic element, guide structure, lower cover half backing plate, the blank holder, wherein go up the mould, the embossing part in the lower mould adopts to widen extension structural design, first recess has been seted up at last cover half middle part, it installs in first recess to go up the mould, the highly uniform of the height of going up the mould and first recess, lower cover half mold insert lower extreme is connected with lower cover half backing plate, the blank holder removes to set up on lower cover half mold insert, can reciprocate, the die cavity of fretwork is seted up at the blank holder middle part, the lower mould is placed in the die cavity, the lower extreme of lower mould contacts with the upper end of lower cover half mold insert, upward be equipped with guide structure between cover half and the blank holder. The utility model discloses a widen the extension with the flower type size, the door plant does not have the regional area of taking up of flower type after the shaping like this reduces, and the flower type region area of taking up of area increases, because the flower type position possesses the strengthening rib effect, corresponding door plant outward appearance roughness is better.

Description

Novel door leaf knurling mould structure

Technical Field

The utility model relates to a steel door technical field, specifically speaking relates to a novel door leaf knurling mould structure.

Background

At present, the sizes of patterns in the steel door industry are different, but most of the sizes of the patterns still use the traditional structure of 400mm/500mm/520mm width and the like, the height is kept at 1600 +/-50 mm, along with the improvement of the living standard of people, the width size of each household for the door opening is required to be wider and wider, the width is gradually transited from 860 (standard door opening width) to 960mm, the split door is also made to be 1980mm from 1680mm, and the door leaf is higher and wider. The blank part corresponding to the door panel is more, so that the integral flatness of the door panel is poor, and the appearance quality is poor.

The principle is as follows: the steel sheet corresponds flower type position intensity can through the stretch forming of knurling mould, can not appear unevenness's quality problem after the inside of honeycomb paper is filled, and the position outside the flower type can be because the internal stress that produces when the flower type is tensile, leads to dull and stereotyped region slight wave to appear, and the honeycomb paper who fills supports the dynamics not enough, corresponds the outward appearance unevenness of this position.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model discloses a widen the extension with flower type size, the door plant does not have the regional area of taking up of flower type after the shaping like this reduces, and the regional area of taking up of flower type increases, because the flower type position possesses the strengthening rib effect, corresponding door plant outward appearance roughness is better.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a novel door leaf knurling mould structure, includes the mould, the lower mould still includes: go up the cover half, lower cover half mold insert, elastic element, guide structure, lower cover half backing plate, the blank holder, wherein go up the mould, the knurling part in the lower mould adopts widening extension structural design, go up the cover half middle part and seted up first recess, it installs in first recess to go up the mould, the height of going up the mould is highly uniform with first recess, lower cover half mold insert lower extreme is connected with lower cover half backing plate, the blank holder removes to set up on lower cover half mold insert, can reciprocate, the die cavity of fretwork is seted up at the blank holder middle part, the lower mould is placed in the die cavity, the lower extreme of lower mould and the upper end contact of lower cover half mold insert, be equipped with guide structure between last cover half and the blank holder, install elastic element between. The embossing parts in the upper die and the lower die can be adjusted to widen and lengthen according to requirements.

Further, guide structure includes the direction subassembly that a set of symmetry set up, and the direction subassembly is including connecting the upper cover half guide pin bushing on last cover half and connecting on the blank holder and all the time with upper cover half guide pin bushing sliding fit's lower cover half guide pillar.

Further, the elastic element is a rubber pad.

Furthermore, a first connecting hole is formed in the bottom of the rubber pad, a second connecting hole matched with the first connecting hole is formed in the lower fixed die base plate, and the first connecting hole is connected with the second connecting hole through a connecting piece.

Further, the connecting piece is a pin.

Further, the upper die is installed in a first groove formed in the upper fixed die through a screw.

To sum up, the utility model discloses following beneficial effect has:

1. the utility model is suitable for a steel door product of super wide, overlength size.

2. The utility model discloses the extension is widened to the knurling part, just can satisfy normal production under the prerequisite that does not increase equipment.

3. The utility model discloses a meaning lies in, compares and enlargies flower type structure, and the outward appearance is more atmospheric, reduces the blank region simultaneously, can effectively guarantee door plant outward appearance roughness.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a novel door leaf embossing die structure disclosed in an embodiment of the present invention;

fig. 2 shows the door leaf after being embossed by the old mold according to the embodiment of the present invention;

fig. 3 shows the door leaf after the embossing according to the present invention.

Reference numerals:

1-upper fixed die guide sleeve; 2-fixing the die; 3, molding the die; 4-lower mould; 5, setting a fixed die insert; 6-lower fixed die guide post; 7-rubber pad; 8-blank holder; and 9-lower fixed die backing plate.

Detailed Description

In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.

The technical solution of the embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1, a novel door leaf knurling mold structure, including last mould 3, lower mould 4, still include: go up cover half 2, lower cover half mold insert 5, an elastic element, guide structure, lower cover half backing plate 9, blank holder 8, wherein go up mould 3, the embossing part in lower mould 4 adopts to widen the extension structural design, first recess has been seted up at 2 middle parts of going up the cover half, it installs in first recess to go up mould 3, the height of going up mould 3 and the highly uniform of first recess, lower cover half backing plate 9 is connected with to lower cover half mold insert 5 lower extreme, blank holder 8 removes and sets up on lower cover half mold insert 5, can reciprocate, the die cavity of fretwork has been seted up at blank holder 8 middle part, lower mould 4 is placed in the die cavity, the lower extreme of lower mould 4 and the upper end contact of lower cover half mold insert 5, be equipped with guide structure between last cover half 2 and the blank holder 8, install an elastic element between lower.

The guide structure is a set of guide assemblies symmetrically arranged in the embodiment, and each guide assembly comprises an upper fixed die guide sleeve 1 connected to the upper fixed die 2 and a lower fixed die guide post 6 connected to the blank holder 8 and always in sliding fit with the upper fixed die guide sleeve 1.

The elastic element is a rubber pad 7 in this embodiment.

In this embodiment, the bottom of the rubber pad 7 is provided with a first connecting hole, the lower fixed die cushion plate 9 is provided with a second connecting hole matched with the first connecting hole, and the first connecting hole and the second connecting hole are connected by a pin.

In the embodiment, the upper die 3 is installed in a first groove formed in the upper fixed die 2 through screws.

In the embodiment, the pattern size of 1600 × 500 of the embossing part in the lower die 4 of the upper die 3 of the old die is increased to 1700 × 600, the blank area ratio after the embossing is calculated by the standard specification size of the door leaf 2050 × 960, the blank area ratio after the embossing is carried out by the old die with the pattern size of 1600 × 500 is 52.1%, and the door leaf blank area ratio after the embossing is carried out by the old die is 38.9%, so that the flat plate area can be effectively reduced, and the appearance flatness of the door panel is ensured. As shown in fig. 2-3, fig. 2 shows the door leaf after being embossed with old mold pattern size of 1600 × 500, and fig. 3 shows the door leaf after being embossed in this embodiment.

The utility model discloses a theory of operation does: the steel plate to be embossed is placed on the blank holder 8, under the action of a press, the upper die 3 moves downwards through sliding between the upper fixed die guide sleeve 1 and the lower fixed die guide post 6 until the upper fixed die 2 contacts the blank holder 8, the blank holder 8 contacts the upper fixed die 2 to press the edge of the plate, then the press continues to press downwards, the blank holder 8 moves downwards, the rubber pad 7 deforms, in the process that the blank holder 8 moves downwards, the lower die 4 is jacked by the lower fixed die insert 5 and cannot move downwards continuously, and the upper die 3 slowly contacts the lower die 4 to machine and form the plate at the moment.

The above embodiments are only used to illustrate the technical solution of the present invention, and do not limit the protection scope of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from these embodiments without any inventive step, are within the scope of the present invention.

Claims

1. The utility model provides a novel door leaf knurling mould structure, includes mould (3), lower mould (4), its characterized in that still includes: an upper fixed die (2), a lower fixed die insert (5), an elastic element, a guide structure, a lower fixed die base plate (9) and a blank holder (8), wherein the embossing parts in the upper die (3) and the lower die (4) adopt a widening and lengthening structural design, a first groove is arranged in the middle of the upper fixed die (2), the upper die (3) is arranged in the first groove, the height of the upper die (3) is consistent with that of the first groove, the lower end of the lower fixed die insert (5) is connected with a lower fixed die base plate (9), the blank holder (8) is movably arranged on the lower fixed die insert (5), the mould can move up and down, the hollowed-out mould cavity is formed in the middle of the blank holder (8), the lower mould (4) is placed in the mould cavity, the lower end of the lower mould (4) is in contact with the upper end of the lower fixed mould insert (5), a guide structure is arranged between the upper fixed mould (2) and the blank holder (8), and an elastic element is installed between the lower fixed mould base plate (9) and the blank holder (8).

2. A novel door leaf knurling mold structure as claimed in claim 1, characterized in that the guiding structure comprises a set of symmetrically arranged guiding components, the guiding components comprise an upper fixed mold guide sleeve (1) connected to the upper fixed mold (2) and a lower fixed mold guide post (6) connected to the blank holder (8) and always slidably engaged with the upper fixed mold guide sleeve (1).

3. A new door leaf embossing die structure as claimed in claim 1, characterized in that the elastic element is a rubber pad (7).

4. A novel door leaf knurling mold structure as claimed in claim 3, wherein the bottom of the rubber pad (7) is provided with a first connecting hole, the lower fixed mold backing plate (9) is provided with a second connecting hole matching with the first connecting hole, and the first connecting hole and the second connecting hole are connected through a connecting piece.

5. The new door leaf embossing die structure as claimed in claim 4, wherein the connecting member is a pin.

6. A new door leaf knurling mold structure as claimed in claim 1, wherein the upper mold (3) is installed in the first groove of the upper fixed mold (2) by screw.