CN102088655A

CN102088655A - Forming and pressing die for loudspeaker drum paper

Info

Publication number: CN102088655A
Application number: CN2010101037255A
Authority: CN
Inventors: 钟德煌
Original assignee: JIANGSU DONGHE SPEAKER PARTS CO Ltd
Current assignee: JIANGSU DONGHE SPEAKER PARTS CO Ltd
Priority date: 2010-01-29
Filing date: 2010-01-29
Publication date: 2011-06-08
Anticipated expiration: 2030-01-29
Also published as: CN102088655B

Abstract

The invention relates to a forming and pressing die for loudspeaker drum paper. The forming and pressing die for the loudspeaker drum paper consists of an upper die part and a lower die part, wherein the lower die part consists of a lower die head, a moveable pressing sleeve, a return spring and a lower template; the lower die head comprises a forming die body and a pressure-bearing column; the forming die body consists of a lower forming surface and a lower pressing ring; the moveable pressing sleeve is sleeved on the forming die body and the pressure-bearing column; the return spring is sleeved on the pressure-bearing column and is positioned between the moveable pressing sleeve and the lower template; and the upper die head is coaxial with the lower die head. The moveable pressing sleeve and the return spring are arranged on the lower die head; when the drum paper is pressed, cloth blank to be formed is pressed tightly by the upper pressing ring and the moveable pressing sleeve, and peripheral cloth is stressed uniformly and then is pulled deeply, pressed and formed, so that the folding phenomenon of the periphery of the drum paper finished product is eliminated, the finished product can be automatically demoulded by one person, and the forming and pressing die for the loudspeaker drum paper is safe and convenient to operate and labor-saving.

Description

Loud speaker drum paper moulding compacting tool set

Technical field:

The present invention relates to a kind of mould, relate in particular to a kind of loud speaker drum paper moulding compacting tool set.

Background technology:

Drum paper is the key component that influences loudspeaker tonequality quality, drum paper is generally cellulosic or fiber cloth gluing compression moulding, its manufacture is earlier this fibrid material to be prefabricated into thin demihull shape, be placed on mould inner mould again and make type, make finished product through suitably drying and pruning, mainly be to be attached at the loudspeaker outboard peripheries, play the vibration pronunciation.As a kind of structural representation of Fig. 1 for drum paper, it is made up of cone 91, corrugated plating 92 and flanging 93.Conventional bulging paper moulding compacting tool set as shown in Figure 2, it is made up of upper mould part and lower mould part, upper mould part is made up of cope match-plate pattern 2 and last die head 3, last die head 3 is fixed on the cope match-plate pattern 2; Lower mould part is made up of lower die head 4 and lower bolster 7, and lower die head 4 is fixed on the lower bolster 7.In pressing process, flanging place around the drum paper is easy to produce fold, and the ratio of the big more generation fold of cone height of drum paper is just high more, this is to rouse the master operation that produces waste product or defective products in the paper production process at present, existing simultaneously drum paper moulding compacting tool set needs two people's co-operations in the process of compacting drum paper, if cooperate the bad industrial accident that is easy to take place, all can bring very big injury and loss for operator and enterprise.

Summary of the invention:

In order to overcome the problems referred to above, the invention provides a kind of loud speaker drum paper moulding compacting tool set, adopt this mould, can eliminate the wrinkling defective in the bulging letterweight system process, greatly reduce percent defective and defective products rate, simultaneously, this mould is as long as a people just can operate smoothly, and finished product can eject automatically, need not manual depanning, both saved manually, improved the fail safe of operation again, for manufacturer has saved cost.

The technical solution adopted in the present invention is:

Described loud speaker drum paper moulding compacting tool set, comprise upper mould part and lower mould part, upper mould part comprises die head and cope match-plate pattern, cope match-plate pattern is fixedly mounted on the expansion link of make-up machine, last die head is fixedly mounted on the lower surface of cope match-plate pattern, last die head is made up of last forming surface and last trim ring, the shape of last forming surface is consistent with the upper surface shape of drum paper, the width of last trim ring is greater than the width of the flanging of drum paper, lower mould part comprises lower die head and lower bolster, lower bolster is fixedly mounted on the workbench of make-up machine, lower die head is fixedly mounted on the upper surface of lower bolster, and lower die head comprises compacted under face and lower clamping ring, and the shape of compacted under face is consistent with the lower surface shape of drum paper, the width of lower clamping ring is identical with the width of the flanging of drum paper, last die head and the coaxial installation of lower die head; It is characterized in that: in lower mould part, also comprise mobile gland and back-moving spring, the wall body cross sectional shape of mobile gland is L shaped, the upper end external diameter of mobile gland is suitable with the external diameter of last die head, the upper end endoporus of mobile gland cooperates with the shaping mould body space of lower die head, the lower end endoporus of mobile gland cooperates with pressure-bearing intercolumniation crack, back-moving spring is sleeved on the pressure-bearing post, and between the upper surface of the lower surface of mobile gland and lower bolster, under the normality condition, the upper surface of mobile gland is higher than the peak of the last forming surface of lower die head moulding die body.

Owing in the lower die head parts of existing drum paper moulding compacting tool set, increased mobile gland and back-moving spring, when compacting drum paper, the last trim ring of last die head and the upper surface of mobile gland are earlier with blank holding to be formed, make the blank of periphery evenly stressed, and then pull and stretch compression moulding, so just can eliminate the wrinkling reason of drum letterweight system, can not only reduce the generation of waste product and defective products significantly, and the bulging paper product depanning automatically that suppresses, need not manual depanning, simple to operate, and, improved the fail safe of operation as long as a people can operate.The bulging paper no wrinkle that suppresses by the present invention, can prevent that loud speaker is when glue is played in production and assembly, be connected not tight because of flanging has the folding bulging paper that causes with the bullet ripple, cause the undesired vibration of drum paper, thereby influence the tonequality and the outward appearance of loud speaker, this mould is applicable to the drawing and forming of soft thin base parts such as cloth, aluminium sheet, copper coin.

Description of drawings:

Fig. 1 is a kind of structural representation of drum paper;

Fig. 2 is the structural representation of existing drum paper mould;

Fig. 3 is a structural representation of the present invention;

Fig. 4 is the cutaway view of mobile gland;

Among the figure: the 1-expansion link; The 2-cope match-plate pattern; The last die head of 3-; The 4-lower die head; 5-moves gland; The 6-back-moving spring; The 7-lower bolster; The 8-workbench; The last forming surface of 31-; The last trim ring of 32-; 41-moulding die body; 42-pressure-bearing post; 43-compacted under face; The 44-lower clamping ring; 51-upper end external diameter; 52-upper end endoporus; 53-lower end endoporus; The 91-cone; The 92-corrugated plating; The 93-flanging.

Embodiment:

Below in conjunction with description of drawings specific embodiments of the present invention.

As shown in Figure 3, Figure 4, described loud speaker drum paper moulding compacting tool set, comprise upper mould part and lower mould part, upper mould part comprises cope match-plate pattern 2 and last die head 3, cope match-plate pattern 2 is fixedly mounted on the expansion link 1 of make-up machine, last die head 3 is fixedly mounted on the lower surface of cope match-plate pattern 2, last die head 3 is made up of last forming surface 31 and last trim ring 32, the shape of last forming surface 31 is consistent with the upper surface shape of drum paper, the width of last trim ring 32 is greater than the width of the flanging 93 of drum paper, and the distance of last trim ring 32 and last forming surface 31 equals the height of the cone 91 of drum paper; Lower mould part comprises lower die head 4, mobile gland 5, back-moving spring 6 and lower bolster 7, lower die head 4 is made up of moulding die body 41 and pressure-bearing post 42, moulding die body 41 is made up of compacted under face 43 and lower clamping ring 44, the shape of the compacted under face 43 of moulding die body 41 is consistent with the shape of the lower surface of drum paper, the width of the lower clamping ring 44 of moulding die body 41 is identical with the width of the flanging 93 of drum paper, the distance of lower clamping ring 44 and compacted under face 43 equals the height of the cone 91 of drum paper, the wall body cross sectional shape of mobile gland 5 is L shaped, the upper end external diameter 51 of mobile gland 5 is suitable with the external diameter of last die head 3, moulding die body 41 matched in clearance of upper end endoporus 52 and lower die head 4, lower end endoporus 53 and pressure-bearing post 42 matched in clearance, back-moving spring 6 is sleeved on the pressure-bearing post 42, and between the upper surface of the lower surface of mobile gland 5 and lower bolster 7, under the normality condition, the upper surface of mobile gland 5 is higher than the peak of compacted under face 43; Lower bolster 7 is fixed on the workbench 8 of make-up machine, and the pressure-bearing post 42 in the lower die head 4 is fixed on the upper surface of lower bolster 7, should guarantee during installation that lower die head 4 is coaxial with last die head 3.

Its using method is: blank to be formed is placed on the mobile gland 5, along with moving down of last die head 3, the last trim ring 32 of last die head 3 and the upper surface of mobile gland 5 are earlier with blank holding to be formed, make the periphery of blank evenly stressed, and then pull and stretch compression moulding, in drawing process, along with moving down of

last die head

3,5 elastic force that overcome back-moving spring 6 of mobile gland move down thereupon, and when last trim ring 32 and lower clamping ring 44 pressings, blank to be formed has been pressed into bulging paper product, going up subsequently die head 3 moves up, under the effect of back-moving spring 6, be moved back into initial condition on the mobile gland 5, the bulging paper product that press this moment also is moved gland 5 thereupon and ejects.

Claims

1. a loud speaker rouses paper moulding compacting tool set, comprise upper mould part and lower mould part, upper mould part comprises cope match-plate pattern (2) and last die head (3), last die head (3) is fixedly mounted on cope match-plate pattern (2) lower surface, cope match-plate pattern (2) is fixedly mounted on the expansion link (1) of make-up machine, last die head (3) is made up of last forming surface (31) and last trim ring (32), and the shape of last forming surface (31) is consistent with the shape of the upper surface of drum paper, and the width of last trim ring (32) is greater than the width of the flanging (93) of drum paper; The part of the lower die comprises lower die head (4) and lower bolster (7), lower die head (4) is fixedly mounted on the upper surface of lower bolster (7), lower bolster (7) is fixed on the workbench (8) of make-up machine, lower die head (4) is made up of moulding die body (41) and pressure-bearing post (42), moulding die body (41) is made up of compacted under face (43) and lower clamping ring (44), the shape of compacted under face (43) is consistent with the shape of the lower surface of drum paper, and the width of the lower clamping ring (44) of moulding die body (41) is identical with the width on drum letterweight limit (93); Last die head (3) is coaxial with lower die head (4), it is characterized in that: the part of the lower die also comprises mobile gland (5) and back-moving spring (6), the wall body cross sectional shape of mobile gland (5) is L shaped, upper end external diameter (51) is suitable with the external diameter of last die head (3), moulding die body (41) matched in clearance of upper end endoporus (52) and lower die head (4), lower end endoporus (53) and pressure-bearing post (42) matched in clearance, back-moving spring (6) is sleeved on the pressure-bearing post (42), and be positioned between the upper surface of the lower surface of mobile gland (5) and lower bolster (7), under the normality condition, the upper surface of mobile gland (5) is higher than the peak of compacted under face (43) of the moulding die body (41) of lower die head (4).