CN209320122U - A kind of fretting map injection mold mould core structure - Google Patents

Abstract

The utility model provides a kind of fretting map injection mold mould core structure, including mavable module core and fixed mold core, the first type chamber is equipped in mavable module core, the outside of first type chamber is equipped with the first sealing ring, first type is intracavitary to be equipped with centre hole, the outside of centre hole is equipped with the second sealing ring, and the second sealing ring is located on the rear end face of mavable module core；Second type chamber is equipped in fixed mold core, second type chamber and the first type chamber cooperatively form a complete injection die cavities, the outside of second type chamber is equipped with third sealing ring, second type is intracavitary to be equipped with air inlet and gas vent, air inlet and gas vent extend downwardly bending after a distance and extend to the outside of fixed mold core, and the surrounding of mavable module core and fixed mold core is equipped with cooling water channel.The utility model fretting map injection mold mould core structure reduces injection pressure, and make product reaches the good state of appearance, reduces injection cycle, reduces product burr, improves production efficiency, reduce production cost, create higher economic benefit.

Description

A kind of fretting map injection mold mould core structure

Technical field

The utility model relates to a kind of mode of injection mold, in particular to a kind of fretting map injection mold mould core structure.

Background technique

Micro foaming injection moulding technique, is a kind of precise injection molding technology of innovation, and micro foaming injection moulding technique breaches Many limitations of traditional injection moulding can significantly mitigate the weight of product, shorten molding cycle, and significantly improve the warpage of product Deformation and dimensional stability；On the precise product that production high quality requires, micro foaming injection moulding technique has very big excellent Gesture；It is also one of with fastest developing speed, most widely used forming technique in precision molding technology.Micro foaming injection moulding technique is to note The mode requirement of mould is very high, is leakproofness first, followed by whether is capable of forming vacuum in mode, the two conditional decisions The quality and injection cycle of fretting map injection mold moulding appearance and burr can be reduced.

Utility model content

[1] technical problems to be solved

The technical problem to be solved by the present invention is to provide a kind of sealing performance height and vacuumize the high micro- hair of quality Steep injection mold mould core structure.

[2] technical solution solved the problems, such as

The utility model provides a kind of fretting map injection mold mould core structure, including mavable module core 1 and fixed mold core 2, described dynamic The first type chamber 11 is equipped in mode 1, the outside of the first type chamber 11 is equipped with the first groove, is equipped with first in first groove Sealing ring 3, the first type chamber 11 is interior to be equipped with centre hole 14, and the centre hole 14 runs through the mavable module core 1, the centre hole 14 outside is equipped with the second groove, and second groove is located on the rear end face of the mavable module core 1, is equipped in second groove The upper surface of second sealing ring 4, the mode 1 is equipped with third groove 12 and locating slot 13；Second is equipped in the fixed mold core 2 Type chamber 21, the second type chamber 21 cooperatively form a complete injection die cavities, the second type chamber with the first type chamber 11 21 outside is equipped with the 4th groove, and third sealing ring 5 is equipped in the 4th groove, is equipped with air inlet in the second type chamber 21 With gas vent 25, the air inlet and the gas vent 25 extend downwardly after a distance bending and extend to again it is described fixed The outside of mode 2, the upper surface of the fixed mold core 2 are equipped with corresponding with the third groove 12, the locating slot 13 the One boss 22 and second boss 23, the mavable module core 1 pass through the third groove 12, the locating slot 13 with the fixed mold core 2 It is matched with the first boss 22, the second boss 23, the surrounding of the mavable module core 1 and the fixed mold core 2 is equipped with cold But water route 6.

Further, second sealing ring 4 is O-ring seal.

Further, first sealing ring 3, second sealing ring 4 and the third sealing ring 5 material be Nitrile rubber.

Further, the angle of the bending is 90 °.

Further, the air inlet includes the first air inlet 24 and the second air inlet 26, first air inlet 24 and Second air inlet 26 is arranged in parallel in the upper and lower ends of the second type chamber 21 respectively, first air inlet 24 with it is described The lower end bending part of second air inlet 26 extends to the left, and two sides extend the lower end bending part of the gas vent 25 to the left and right.

Further, the third groove 12 is total to there are four and is evenly distributed on four angles of the mavable module core 1, described It is symmetrical arranged there are four locating slot 13 is total and two-by-two the surrounding of the first type chamber 11.

Further, first air inlet 24, second air inlet 26 it is identical as the aperture of the gas vent 25 and Less than the aperture of the cooling water channel 6.

Further, there are the first spacing, the third sealings between first sealing ring 3 and the first type chamber 11 There are the second spacing between circle 5 and the second type chamber 21.

Further, first spacing be equal to second spacing, and the spacing be more than or equal to 2mm and be less than etc. In 3mm.

[3] beneficial effect

The utility model fretting map injection mold mould core structure reduces injection pressure, make product to reach appearance good State reduces injection cycle, reduces product burr, improves production efficiency, reduce production cost, create more Gao Jingji Benefit.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model fretting map injection mold mould core structure；

Fig. 2 is the main view of mavable module core in the utility model fretting map injection mold mould core structure；

Fig. 3 is the rearview of mavable module core in the utility model fretting map injection mold mould core structure；

Fig. 4 is the main view of fixed mold core in the utility model fretting map injection mold mould core structure；

The structural schematic diagram with air inlet is vented in Fig. 5 the utility model fretting map injection mold mould core structure.

Specific embodiment

With reference to the accompanying drawing, the utility model embodiment is discussed in detail.

Refering to fig. 1 to Fig. 5, a kind of fretting map injection mold mould core structure of the utility model, including mavable module core 1 and fixed mold core 2, it is equipped with the first type chamber 11 in mavable module core 1, is equipped with the first groove in the outside of the first type chamber 11, the is equipped in the first groove One sealing ring 3 is equipped with multiple centre holes 14 in the first type chamber 11, and the number and arrangement mode of centre hole 14 are according to mold Actual conditions determine that each centre hole 14 runs through mavable module core 1, the outside of each centre hole 14 be equipped with one it is second recessed Slot, the second groove are located on the rear end face of mavable module core 1, second sealing ring 4 are equipped in each second groove, in mode 1 upper surface is equipped with third groove 12 and locating slot 13；Second type chamber 21, second type chamber 21 and the are equipped in fixed mold core 2 One type chamber 11 cooperatively forms a complete injection die cavities, the 4th groove is equipped in the outside of second type chamber 21, in the 4th groove It is interior to be equipped with third sealing ring 5, air inlet and gas vent 25 are equipped in second type chamber 21, air inlet is with gas vent 25 to downward Stretch bending after a distance and extend to the outside of fixed mold core 2 again, the upper surface of fixed mold core 2 be equipped with third groove 12, The corresponding first boss 22 of locating slot 13 and second boss 23, mavable module core 1 and fixed mold core 2 pass through third groove 12, locating slot 13 match with first boss 22, second boss 23, and the surrounding of mavable module core 1 and fixed mold core 2 is equipped with cooling water channel 6.

In order to improve sealing performance, the second sealing ring 4 is O-ring seal in the present embodiment, and the first sealing ring 3, the The material of two sealing rings 4 and third sealing ring 5 is nitrile rubber, and there are first between the first sealing ring 3 and the first type chamber 11 Spacing, there are the second spacing between third sealing ring 5 and second type chamber 21, the first spacing is equal to second spacing, and Away from more than or equal to 2mm and less than or equal to 3mm.

In order to improve the effect vacuumized, air inlet includes the first air inlet 24 and the second air inlet in the present embodiment 26, the first air inlet 24 and the second air inlet 26 are arranged in parallel in the upper and lower ends of second type chamber 21, the first air inlet 24 respectively With the second air inlet 26 close to the left side of second type chamber 21, the lower end bending part of the first air inlet 24 and the second air inlet 26 to Left side extends through the left side wall of fixed mold core 2, and two sides extend through fixed mold core 2 to the lower end bending part of gas vent 25 to the left and right Arranged on left and right sides wall, the first air inlet 24, the second air inlet 26 and the angle of 25 bending part bending of gas vent are 90 °, first into Stomata 24, the second air inlet 26 is identical as the aperture of gas vent 25 but is less than the aperture of cooling water channel 6.

The use of the utility model fretting map injection mold mould core structure is elaborated below with reference to the embodiment of appeal Method, also need to use when in use other than mould core structure when the utility model fretting map injection mold line position, oblique top, thimble, The structures such as jacking block, vaccum-pumping equipment, foaming agent, runner and nozzle, plastic cement enters the mold cavity of mould core structure at work It is interior, foaming agent is then added in mold cavity again, plastic cement carries out cooling, ejecting product after fretting map inside mold cavity, from And realizing reduces injection pressure, traditional Injection hold pressure link is not needed compared with traditional injection mold, and reduce note The period is moulded, product burr is reduced, reduces product internal stress, mitigates product and shrinks, mitigate product weight, improves production effect Rate reduces production cost, creates higher economic benefit.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change It also should be regarded as the protection scope of the utility model into retouching.

Claims (9)

1. a kind of fretting map injection mold mould core structure, it is characterised in that: including mavable module core (1) and fixed mold core (2), the dynamic model The first type chamber (11) is equipped in benevolence (1), the outside of the first type chamber (11) is equipped with the first groove, is equipped in first groove First sealing ring (3), the first type chamber (11) is interior to be equipped with centre hole (14), and the centre hole (14) runs through the mavable module core (1), the outside of the centre hole (14) is equipped with the second groove, and second groove is located on the rear end face of the mavable module core (1), The second sealing ring (4) are equipped in second groove, the upper surface of the mode (1) is equipped with third groove (12) and locating slot (13)；Second type chamber (21) are equipped in the fixed mold core (2), the second type chamber (21) and the first type chamber (11) cooperate shape At a complete injection die cavities, the outside of the second type chamber (21) is equipped with the 4th groove, and the is equipped in the 4th groove Three sealing rings (5), the second type chamber (21) is interior to be equipped with air inlet and gas vent (25), the air inlet and the gas vent (25) extend downwardly bending after a distance and extend to the outside of the fixed mold core (2) again, the fixed mold core (2) it is upper End face is equipped with first boss (22) corresponding with the third groove (12), the locating slot (13) and second boss (23), the mavable module core (1) and the fixed mold core (2) pass through the third groove (12), the locating slot (13) and described the One boss (22), the second boss (23) match, and the surrounding of the mavable module core (1) and the fixed mold core (2) is equipped with cold But water route (6).

2. fretting map injection mold mould core structure as described in claim 1, it is characterised in that: second sealing ring (4) is O Type sealing ring.

3. fretting map injection mold mould core structure as described in claim 1, it is characterised in that: first sealing ring (3), institute The material for stating the second sealing ring (4) and the third sealing ring (5) is nitrile rubber.

4. fretting map injection mold mould core structure as described in claim 1, it is characterised in that: the angle of the bending is 90 °.

5. fretting map injection mold mould core structure as described in claim 1, it is characterised in that: the air inlet include first into Stomata (24) and the second air inlet (26), first air inlet (24) are arranged in parallel in respectively with second air inlet (26) The upper and lower ends of the second type chamber (21), the lower end bending part of first air inlet (24) and second air inlet (26) Extend to the left, two sides extend the lower end bending part of the gas vent (25) to the left and right.

6. fretting map injection mold mould core structure as described in claim 1, it is characterised in that: the third groove (12) is shared Four and be evenly distributed on four angles of the mavable module core (1), the locating slot (13) altogether there are four and be symmetrical arranged two-by-two The surrounding of the first type chamber (11).

7. fretting map injection mold mould core structure as claimed in claim 5, it is characterised in that: first air inlet (24), Second air inlet (26) is identical as the aperture of the gas vent (25) and is less than the aperture of the cooling water channel (6).

8. fretting map injection mold mould core structure as described in claim 1, it is characterised in that: first sealing ring (3) with There are the first spacing between the first type chamber (11), between the third sealing ring (5) and the second type chamber (21) there are Second spacing.

9. fretting map injection mold mould core structure as claimed in claim 8, it is characterised in that: first spacing is equal to described Second spacing, and the spacing is more than or equal to 2mm and is less than or equal to 3mm.