CN201169039Y

CN201169039Y - Automatic cutting apparatus in ejection forming mould

Info

Publication number: CN201169039Y
Application number: CNU2008200010427U
Authority: CN
Inventors: 陈启铭
Original assignee: COXON PRECISE INDUSTRIAL Co Ltd
Current assignee: COXON PRECISE INDUSTRIAL Co Ltd
Priority date: 2008-01-14
Filing date: 2008-01-14
Publication date: 2008-12-24
Anticipated expiration: 2018-01-14

Abstract

The utility model relates to an automatic cutting device in an injection molding mould. The automatic cutting device comprises a die set in which an in-die slot is arranged and an in-die cutting mechanism which comprises a cutting piece and a propping device, wherein, the cutting piece is arranged in the in-die slot of the die set and is provided with a runner, and the propping device is propped on the cutting piece, and is used for performing a moving power on the cutting piece; thus, the purpose that scrap materials connected with the plastic injection molding are automatically cut in the die can be reached, the scrap materials after being die-sunk are not required to be subsequently treated, and the product can be directly completed, thereby the expense on manual cutting of the scrap materials can be avoided, the manufacturing cycle of the products can be shortened, and the stability of the product quality and the security of the operation can be ensured, further the cost can be greatly reduced, and the overall automatic production can be reached, so that the economic benefit generated can be positively met.

Description

Automatic cutting means in the injection molding mould

Technical field

The utility model relates in a kind of mould and cuts technology, be meant especially and a kind ofly cut in mould, promptly finishing stub bar behind the plastic jetting forming automatically, and exempted the loaded down with trivial details operation of follow-up aritificial cut-off, and then promoted automatic cutting means in the injection molding mould of making economic benefit and product with stable quality.

Background technology

Plastic jetting forming is a large amount of manufacture methods of using always of producing of product, existing plastic jetting forming is to use the mode of directly advancing glue, be that plastics in the mould are mutually in succession at the cast gate place with plastics in the runner, therefore finish and after the mould die sinking when injection molding, as shown in Figure 1 and Figure 2, the product 90 of emitted shaping is to link a stub bar 91 is arranged, and described stub bar 91 must be separated through subsequent treatment, just can obtain the product 90 of single whole.Sanction at stub bar 91 is removed operation, plastic cement shaping factory all takes manual type to handle at present, for example use cutting nippers, cutter or tool die-cut ... to wait utensil to cut described stub bar 91, but owing to use the aritificial cut-off operating type will make manufacturing cost improve, and elongate because of secondary operations also causes the production cycle, difficult on the whole symbol is made economic benefit; In addition, because it is to carry out with manual type that the sanction of described stub bar 91 is removed operation, make once more handling ease cause the unstability of product quality, and disqualification rate also can increase, the people's Work tool that also lies dormant simultaneously cuts the danger in the operation, and the design of nonideal manufacturing process.On the other hand, because the cost of labor height and the shortage of manpower now, industry is all made great efforts towards automation development, makes economic benefit to reduce manpower demand and to promote, make the disappearance problem that existing plastic jetting forming manufacture is brought, more remain necessity of actively being broken through again, improving.

Summary of the invention

At the deficiency on existing plastic jetting forming manufacturing and the structural design thereof, the purpose of this utility model is: provide a kind of having more to make convenience, economy, security and automatic cutting means in the injection molding mould of good merchantable brand matter effect more, to promote the development of this industry.

For achieving the above object, the technical solution adopted in the utility model is:

Automatic cutting means in a kind of injection molding mould is characterized in that, comprising:

One set of molds is provided with a mould inside groove in it;

Cutting mechanism in one mould, it includes and cuts part and replace device, and the described part that cuts is provided in a side of in the described mould inside groove of described set of molds, and the described part that cuts is to be provided with runner, the described described part that cuts of device butt of replacing is used for the described part that cuts is produced a displacement and is used as power.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be:

1. the utility model stub bar that plastic jetting forming is connected cuts in mould automatically, makes the stub bar after the die sinking must directly not finish product through subsequent treatment, and then simplifies the manufacturing process of injection molding.

2. the utility model can be exempted and manually-operatedly expends and shorten the finished product manufacturing time, and can guarantee the stability of product quality and the security of operation, and then cost is significantly reduced and can reach comprehensive automation production.

Description of drawings

Fig. 1 is that existing plastic jetting forming stub bar links schematic diagram;

Fig. 2 is that existing plastic jetting forming stub bar cuts the separation schematic diagram;

Fig. 3 is the utility model decomposing schematic representation;

Fig. 4 is the local combination of a utility model schematic diagram;

Fig. 5 is the utility model injection molding operation chart;

Fig. 6 is that the utility model stub bar cuts operation chart.

Description of reference numerals: 10-first mould; 20-second mould; Cutting mechanism in the 30-mould; The 11-first mould inside groove; 12-first grooving; The 21-second mould inside groove; 22-second grooving; 31-first cuts part; 34-second cuts part; 38-replaces device; The 32-runner; The 321-branch flow passage; The 322-cast gate; The 35-runner; The 351-branch flow passage; The 352-cast gate; The 40-product; The 50-stub bar.

The specific embodiment

Please read Fig. 3, Fig. 4, cutting means includes cutting mechanism 30 in one first mould 10, second mould 20 and the mould in the utility model injection shaping die; First mould (fixation side die/master mold) the 10th is provided with one first mould inside groove (fixedly side form inside groove) 11, the first mould inside groove 11 is to penetrate described first mould 10, and the bottom of first mould 10 is to be provided with several first grooving (fixation side grooving), 12, the first groovings 12 that are used for formed product to be communicated with the first mould inside groove 11; Described second mould 20 (movable side form benevolence/male model) is to be provided with one second mould inside groove (movable side form inside groove) 21, the second mould inside groove 21 penetrates second mould 20, the top of second mould 20 is to be provided with several to be used for second grooving (movable side grooving) 22 of formed product, and this second grooving 22 is communicated with second mould inside groove 21.Described first mould 10 and second mould 20 are to form a set of molds, are used for the product that injection molding first grooving 12,22 predetermined combinations of second grooving form.

Cutting mechanism 30 includes one first and cuts part 31, second and cut part 34 and replace device 38 in this mould; First cuts part (fixation side cuts part) the 31st, is located at slidably in the first mould inside groove 11 of first mould 10, first to cut part 31 bottoms be to be provided with runner 32, runner 32 includes the branch flow passage 321 of several extensions and the cast gate 322 of branch flow passage 321 ends, and this cast gate 322 is communicated with described first grooving 12; Second cuts part (movable side cuts part) the 34th, slidably is located in the second mould inside groove 21 of second mould 20, second to cut part 34 tops be to be provided with runner 35, runner 35 includes the branch flow passage 351 of several extensions and the cast gate 352 of branch flow passage 351 ends, and cast gate 352 is communicated with described second grooving 22; Replace device 38 and be provided in a side of (not shown) on the support, and replace described second and cut part 34, in preferred embodiment, replacing device 38 is to can be an elastic device, as spring etc., is used for laterally cutting the elastic thrust that part 34 produces after compressing to described second, certainly, this replaces device 38 and also can be other the mechanism that replaces, and as push arm, push boat etc., utilizes control automatically to produce an active force of replacing to cooperate the injection molding operation to cut part 34 to described second.

When desiring to carry out injection molding, be earlier closed described first mould 10 and second mould 20, and make described first to cut part 31 and second and cut part 34 and also produce corresponding closedly simultaneously, and in suitable embodiment, first to cut part 31 tops be to be subjected to the suitable power that compresses; At this moment, described first grooving 12, second grooving 22 are to be corresponding to engage, and described runner 32,35 (comprising branch flow passage 321,351 and cast gate 322,352) also is corresponding joint.

See also Fig. 5, hot melting plastic is to pressurize to enter in first and

second grooving

12,22 from the cast gate 322,352 of

runner

32,35 during injection molding, and in formed product 40 and the

runner

32,35 and the stub bar 50 that is connected with described product 40, and finish the operation of injection molding.

See also Fig. 6, after treating that injection molding is finished, can carry out the operation that cuts of described stub bar 50, rely on this moment and replace device 38 (as spring) and cut part 34 to second and produce one and replace thrust (as elastic force), and make described second to cut part 34, first cuts part 31 is replaced and displacement, described cast gate 322 of while, 352 also leave described first relatively, two groovings 12,22 (ginseng Fig. 4), make described product 40 and described runner 32, stub bar 50 in 35 is separated, in other words, so running of cutting mechanism 30 in the mould, can be described first, two molds 10, finish the operation that cuts of described stub bar 50 in 20, make to reach simplifying of cutting in the mould, convenient effect.And described in the suitable embodiment to replace that device 38 ejections second cut before part 34, first cuts part 31 be to remove earlier first power that compresses that cuts above the part 31 so that second cuts part 34, first and cuts part 31 and be able to slippage start in first and second mould inside

groove

11,21 of first and

second mould

10,20.

Therefore, the utility model utilizes the mode that cuts in the mould, what make that product after the shaping can carry out stub bar in mould cuts operation automatically, so when opening mold (first, two molds) after, take out the complete product that is of finished product, do not need again through follow-up secondary manpower processing, not only can simplify operation, shorten production life cycle and reduce cost, and can avoid secondary operations to produce unstability on the quality, simultaneously, stub bar cuts mode automatically in mould, also can avoid manually using cutting nippers, cutter or tool are die-cut ... wait utensil to cut the danger of being hidden, and can actively promote the value on its industry.

More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within the protection domain of the present utility model.

Claims

1. the interior automatic cutting means of injection molding mould is characterized in that, comprising:

One set of molds is provided with a mould inside groove in it;

2. automatic cutting means in the injection molding mould according to claim 1, it is characterized in that: described set of molds includes one first mould and second mould, described first mould and described second mould are to be respectively equipped with the first mould inside groove and the second mould inside groove, to form described mould inside groove.

3. automatic cutting means in the injection molding mould according to claim 2, it is characterized in that: the described first mould inside groove penetrates described first mould, and the described second mould inside groove penetrates described second mould.

4. automatic cutting means in the injection molding mould according to claim 3, it is characterized in that: an end of described first mould is to be provided with at least one first grooving, and described second mould is to be provided with at least one second grooving to a end that should first grooving.

5. automatic cutting means in the injection molding mould according to claim 4, it is characterized in that: described first grooving is communicated with the described first mould inside groove, and described second grooving is communicated with the described second mould inside groove.

6. automatic cutting means in the injection molding mould according to claim 4 is characterized in that: the described part that cuts includes and is located at first in the described first mould inside groove and cuts part and be located at second in the described second mould inside groove and cut part.

7. automatic cutting means in the injection molding mould according to claim 6 is characterized in that: described first cuts part and described second, and to cut the corresponding end of part be to be respectively equipped with runner.

8. automatic cutting means in the injection molding mould according to claim 7 is characterized in that: described runner includes branch flow passage and the terminal cast gate that is communicated with of described branch flow passage.

9. automatic cutting means in the injection molding mould according to claim 1, it is characterized in that: the described device of replacing is an elastic device.

10. automatic cutting means in the injection molding mould according to claim 1 is characterized in that: the described device of replacing is push arm or the push boat that utilizes control automatically to be cooperated.