CN201609735U

CN201609735U - Gear-type bending mold

Info

Publication number: CN201609735U
Application number: CN2010200036208U
Authority: CN
Inventors: 曹昌强; 宋国民
Original assignee: ANTE (SUZHOU) PRECISION MACHINERY Co Ltd
Current assignee: ANTE (SUZHOU) PRECISION MACHINERY Co Ltd
Priority date: 2010-01-12
Filing date: 2010-01-12
Publication date: 2010-10-20
Anticipated expiration: 2020-01-12

Abstract

The utility model relates to a gear-type bending mold, comprising a lower mold holder which is provided with a bending convex mold; and a corresponding upper mold holder is arranged above the lower mold holder. The gear-type bending mold is characterized in that the upper mold holder is linked with a discharge plate by an elastic mechanism; and the working end of the discharge plate is connected with a bending block by a gear assembly. Simultaneously, the lower mold holder is provided with the bending convex mold. Therefore, the gear assembly is adopted to drive the bending block to rotate so as to finish the whole bending action, thus avoiding the unnecessary sliding between the bending edge formed by a blank and the bending, and realizing no scratch on the bending edge. The gear-type bending mold is safe and reliable in the whole processing process, and not only is applicable to production of single-acting molds, but also is applicable to automatic line production of a continuous mold and a manipulator.

Description

Gear type bending die

Technical field

The utility model relates to a kind of Bending Mould, relates in particular to a kind of gear type bending die.

Background technology

Not having the scratch bending is the technical problem of often meeting in the punching production, when producing the relatively stricter product of some appearance requirement, the bending edges surface quality is often required very high, not allowing any scratch produces, therefore Bending Mould being required also can be than higher, need some special Bending Mould structures to produce corresponding product, to satisfy the requirement of product.

Nothing scratch bending structure at present commonly used has dual mode: roller type (as Fig. 1) and turnover plate type (as Fig. 2), but this dual mode all has the defective that self can't overcome owing to the reason of configuration aspects.Roller type Bending Mould (as Fig. 1) roller bearing when bending rotates under the drive of product, the product outside is rolling friction with the roller bearing generation, the product that the more common Bending Mould of back scuff mark that is shaped is produced can obviously reduce, but owing to still there is friction to exist between roller bearing and the product, scuff mark can't be accomplished to avoid fully, and therefore not being suitable for does not have abrasive product bending fully.

Turnover plate type Bending Mould (as Fig. 2) is though can make and do not have abrasive high-quality product fully, but be in free relatively unconfined state owing to stir bending plate, it skids off between backup plate and bending punch in the bending process sometimes, stirring folded block after bending is finished can not automatically reset sometimes, there is bigger potential safety hazard, be not suitable for the progressive die and manipulator automatic production, only be applicable to the production of manually-operated single-action die.

Summary of the invention

The purpose of this utility model is to overcome the above problem that prior art exists, and a kind of gear type bending die is provided.

For realizing the purpose of this utility model gear type bending die, include die shoe, the bending punch is installed on it, the top of die shoe is provided with corresponding upper bolster, wherein: described upper bolster is connected to stripper by the elastic mechanism chain, and the working end of stripper is connected with folded block by gear assembly.

Further, above-mentioned gear type bending die, wherein, described gear assembly is positioned at the both sides of stripper.

Further, above-mentioned gear type bending die, wherein, described gear assembly includes gear, is engaged with tooth bar on the gear, and a side of tooth bar is connected with upper bolster by back-up block.

Again further, above-mentioned gear type bending die, wherein, described elastic mechanism is a spring.

Adopt technical solutions of the utility model, adopt the rack drives gear, the gear driven folded block rotates finishes whole bending action, has avoided unnecessary relative slip occurring between bending edges that blank is shaped and the bending, realizes not occurring on the bending edges scratch.Moreover whole process is safe and reliable, promptly is applicable to single-action die production, also is applicable to the progressive die and manipulator automatic production, and it is also very convenient to adjust the bending angle, has improved production efficiency greatly.

The purpose of this utility model, advantage and characteristics will illustrate by the non-limitative illustration of following preferential embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.

Description of drawings

Fig. 1 is the organigram of roller type bending structure in the mould;

Fig. 2 is the organigram of turnover plate type bending structure in the mould;

Fig. 3 is the die opening state schematic diagram of gear type bending die;

Fig. 4 is the connection diagram of rack and pinion;

Fig. 5 is the view in the gear type bending die work;

Fig. 6 is the closure state schematic diagram of gear type bending die.

The implication of each Reference numeral is as follows among the figure:

1 upper bolster, 2 back-up blocks

3 tooth bars, 4 folded blocks

5 gears, 6 springs

7 strippers, 8 blanks

9 bending punch, 10 die shoes

11

The specific embodiment

Gear type bending die shown in Fig. 3～6, include die shoe 10, bending punch 9 is installed on it, the top of die shoe 10 is provided with corresponding upper bolster 1, its special feature is: described upper bolster 1 is connected to stripper 7 by the elastic mechanism chain, and the working end of stripper 7 is connected with folded block 4 by gear 5 assemblies.

Further, in order to help the stable motion of folded block 4, gear 5 assemblies are positioned at the both sides of stripper 7.Thus, can the blank of being placed on the bending punch 8 firmly be led, implement bending.Specifically, gear 5 assemblies include gear 5, are engaged with tooth bar 3 on the gear 5, and a side of tooth bar 3 is connected with upper bolster 1 by back-up block 2.Like this, the motion of folded block 4 can be controlled by tooth bar 3 guide gear 5.

Simultaneously, actual the making of combination gear 5 formula Bending Moulds be used for seeing, considers stripper 7 to be carried out spacing, and described elastic mechanism is a spring 6.Like this, for different blank 8, stripper 7, can adopt the spring 6 of different stiffness factors to carry out spacing.Finish whole bending action owing to adopting gear 5 to drive folded blocks 4 rotations, the bending angle can pass through to adjust the stroke of tooth bar 3, thereby the rotational angle that changes gear 5 and folded block 4 is adjusted.

Again further combined with actual operation of the present utility model: after equipment was started working, the forcing press top shoe in it was descending, and it is descending to drive whole patrix.When stripper 7 with after blank 8 contacts, stripper 7 and the folded blocks 4 that are fixed on above the stripper 7 stop downward telemechanical immediately with gears 5.

Subsequently, the top shoe under the forcing press continues descending, and upper bolster 1 and the tooth bar 3 that is fixed on above the upper bolster 1 also move downward together.These hour rack 3 driven wheels 5 and the folded block 4 that is fixed together with gear 5 are done clockwise rotation around the axle center of axle 11, finish the bending to blank 8.

After bending was finished, the top shoe of forcing press began up, and upper bolster 1 and tooth bar 3 move upward together.Incipient stage, because the effect of spring force, stripper 7 and the folded block 4, the gears 5 that are fixed on above the stripper 7 do not move upward, but gear 5 and its folded block that is fixed together 4 are done around the axle center of axle 11 under the driving of tooth bar 3 and be rotated counterclockwise motion.

Then, folded block 4 is opened.Along with the continuation of forcing press top shoe is up, it is up together to drive whole patrix, and mould is opened, and whole bending process is finished.

In conjunction with said process as can be seen, during whole bending, almost do not occur sliding relatively between bending edges that blank 8 is shaped and the folded block 4, and therefore can guarantee that bending edges did not have any scratch.

By above-mentioned character express also in conjunction with the accompanying drawings as can be seen, after adopting the utility model, adopt the rack drives gear, the gear driven folded block rotates finishes whole bending action, avoided unnecessary relative slip occurring between bending edges that blank is shaped and the bending, realized not occurring on the bending edges scratch.Moreover whole process is safe and reliable, promptly is applicable to single-action die production, also is applicable to the progressive die and manipulator automatic production, and it is also very convenient to adjust the bending angle, has improved production efficiency greatly.

Certainly, more than only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the utility model scope required for protection.

Claims

1. gear type bending die, include die shoe, the bending punch is installed on it, the top of die shoe is provided with corresponding upper bolster, it is characterized in that: described upper bolster is connected to stripper by the elastic mechanism chain, and the working end of stripper is connected with folded block by gear assembly.

2. gear type bending die according to claim 1 is characterized in that: described gear assembly is positioned at the both sides of stripper, and it includes gear, is engaged with tooth bar on the gear, and a side of tooth bar is connected with upper bolster by back-up block.

3. gear type bending die according to claim 1 is characterized in that: described elastic mechanism is a spring.