CN214872029U - Gasket injection mold with replaceable insert - Google Patents

Abstract

The utility model relates to a technical field of mould, more specifically relates to a packing ring injection mold of removable mold insert, including the bottom plate and with the mould benevolence mold insert of connection can be dismantled to the bottom plate, the bottom plate is equipped with the multiunit and is convex die cavity, the multiunit the radius of die cavity is different, mould benevolence mold insert is equipped with the multiunit and is convex supplementary die cavity, the multiunit the die cavity respectively with the multiunit the radius of assisting the die cavity is the same and with the centre of a circle setting, the die cavity with the quantity of assisting the die cavity equals, and the multiunit the die cavity respectively with the multiunit it forms the annular packing ring die cavity of a plurality of closed rings to assist the one-to-one intercommunication of die cavity, at least two sets up be connected with supplementary runner between the assistance die cavity. The utility model discloses but the packing ring of the different specifications of coproduction improves the efficiency of moulding plastics of packing ring, and the packing ring of multiple specification uses same set of mould, can reduce the mould equipment and drop into, reduction in production cost when changing mould benevolence mold insert, but the coproduction of the different specification packing rings of random composition.

Description

Gasket injection mold with replaceable insert

Technical Field

The utility model relates to a technical field of mould, more specifically relates to a packing ring injection mold of removable mold insert.

Background

The specifications of telescopic joint gasket products are from 50-160 to 4 specifications, the products are circular rings, the traditional structure is that the mold opening is carried out on each specification product independently, the utilization rate of the mold is not high, the number of the molds made in each specification independently is large, and more injection molding production equipment and personnel are needed when multiple products are produced simultaneously.

Chinese patent CN201220612728.6 discloses an interchangeable insert mold, including solid fixed baseplate and mould benevolence, mould benevolence sets up the central point at solid fixed baseplate and puts, be provided with mould benevolence insert in the mould benevolence, mould benevolence insert is including solid fixed insert and interchangeable insert, the interchangeable insert is connected on solid fixed insert, it includes first insert and second insert to interchange the insert, and this scheme can realize that a pair mould moulds plastics the product of two kinds or several different types, but can not mould plastics several different types of product simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a packing ring injection mold of removable mold insert, can realize the packing ring of the different specifications of a pair mould simultaneous injection moulding, reduce equipment and personnel and drop into, improve packing ring injection molding efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a packing ring injection mold of removable mold insert, including the bottom plate and with the mould benevolence mold insert of connection can be dismantled to the bottom plate, the bottom plate is equipped with the multiunit and is convex die cavity, the multiunit the radius of die cavity is different, mould benevolence mold insert is equipped with the multiunit and is convex auxiliary mold cavity, the multiunit the die cavity respectively with the multiunit the radius of auxiliary mold cavity is the same and with the centre of a circle setting, the quantity of auxiliary mold cavity is not more than the quantity of die cavity, and the multiunit the die cavity respectively with the multiunit auxiliary mold cavity communicates one by one and forms a plurality of ring form packing ring die cavities of closed ring form, and is at least two sets of be connected with supplementary runner between the auxiliary mold cavity.

The utility model discloses a packing ring injection mold of removable mold insert, the multiunit the finished product die cavity respectively with the multiunit the radius of assisting the die cavity is the same and the concentric circles setting, the multiunit the finished product die cavity is assisted the packing ring die cavity that the die cavity intercommunication formed different specifications with the multiunit respectively, the blank position in the middle of the make full use of mould, and set up supplementary runner between the packing ring die cavity, the material flows and flows to next packing ring die cavity through supplementary runner in the packing ring die cavity, but the packing ring of the different specifications of coproduction, improve the efficiency of moulding plastics of packing ring, and the packing ring of multiple specification uses same set of mould, can reduce the mould equipment and drop into, reduction in production cost, and the connection can be dismantled to mould benevolence mold insert, when more mould changing benevolence mold insert, and supplementary runner sets up on mould benevolence mold insert, the coproduction of the different specification packing rings of can make up wantonly.

Furthermore, the die core insert is connected with the bottom plate through a detachable connecting piece.

Further, the connecting piece is a screw.

Furthermore, the bottom plate is provided with a groove, and the mold insert is embedded into the groove.

Further, the bottom plate is provided with a feed inlet, and the feed inlet is communicated with the auxiliary die cavity close to the feed inlet.

Furthermore, the bottom plate is provided with a plurality of thimbles.

Further, mould benevolence mold insert includes first mold insert and second mold insert, the recess including respectively with first mold insert complex first recess and second recess, first mold insert and second mold insert all are equipped with assist the die cavity, the feed inlet with first mold insert is connected.

Further, mould benevolence mold insert still includes third mold insert and fourth mold insert, the recess still include respectively with third mold insert with fourth mold insert complex third recess and fourth recess, third mold insert and fourth mold insert all are equipped with assist the die cavity, and the multiunit it is provided with two sets to become the die cavity symmetry, one set become the die cavity with first mold insert and second mold insert are connected, another set become the die cavity with third mold insert and fourth mold insert are connected, the both ends of feed inlet respectively with first mold insert and third mold insert are connected.

Furthermore, each set of molding cavity comprises a first molding cavity, a second molding cavity, a third molding cavity and a fourth molding cavity, the auxiliary molding cavity comprises a first auxiliary molding cavity, a second auxiliary molding cavity, a third auxiliary molding cavity and a fourth auxiliary molding cavity which are respectively communicated with the first molding cavity, the second molding cavity, the third molding cavity and the fourth molding cavity, and the feed port is connected with the first auxiliary molding cavity, the second auxiliary molding cavity, the third auxiliary molding cavity or the fourth auxiliary molding cavity.

Further, the auxiliary runners on top of the first, second, third and fourth inserts may: the first auxiliary die cavity and the second auxiliary die cavity are arranged between the first auxiliary die cavity and the second auxiliary die cavity; or the first auxiliary die cavity and the second auxiliary die cavity and the third auxiliary die cavity and the fourth auxiliary die cavity are arranged at the same time; or between the second auxiliary die cavity and the third auxiliary die cavity.

The utility model discloses a packing ring injection mold of removable mold insert compares with the background art, and the beneficial effect of production is:

the gasket of different specifications can be produced simultaneously, the injection molding efficiency of the gasket is improved, the gaskets of various specifications use the same set of mold, the investment of mold equipment can be reduced, the production cost is reduced, and the gasket of different specifications can be combined randomly and produced simultaneously when the mold core insert is replaced.

Drawings

FIG. 1 is a front view of an injection mold capable of simultaneously producing gaskets of four specifications according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an injection mold capable of simultaneously producing gaskets of four specifications according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a base plate according to an embodiment;

fig. 4 is a schematic structural view of a second insert according to the second embodiment;

FIG. 5 is a front view of an injection mold for simultaneously producing three-size gaskets according to the third embodiment;

FIG. 6 is a front view of an injection mold capable of simultaneously producing two types of gaskets according to the fourth embodiment;

FIG. 7 is a front view of an injection mold for simultaneously producing two gaskets of the same specification according to the fifth embodiment;

in the drawings: 1-a bottom plate; 11-a first mould cavity; 12-a second molding cavity; 13-a third mold-forming cavity; 14-a fourth mold-forming cavity; 2-a mold insert; 21-a first insert; 22-a second insert; 23-a third insert; 24-a fourth insert; 25-a first auxiliary mold cavity; 26-a second auxiliary mold cavity; 27-a third auxiliary cavity; 28-a fourth auxiliary mold cavity; 3-a groove; 31-a first groove; 32-a second groove; 33-a third groove; 34-a fourth groove; 4-a connector; 5-a thimble; 6-auxiliary flow channel; and 7-feeding hole.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Example one

The utility model provides a packing ring injection mold of removable mold insert, as shown in figure 2, including bottom plate 1 and the mould benevolence mold insert 2 of being connected with can dismantling bottom plate 1, bottom plate 1 is equipped with the multiunit and is convex die cavity, the radius of many component mold chambeies is different, mould benevolence mold insert 2 is equipped with the multiunit and is convex supplementary die cavity, multiunit die cavity is the same and the same centre of a circle setting with the radius of multiunit auxiliary mold chamber respectively, the quantity of assisting the die cavity is not more than the quantity of die cavity, and multiunit die cavity communicates the annular packing ring die cavity of a plurality of sealings with the multiunit auxiliary mold chamber one by one respectively, be connected with supplementary runner 6 between at least two sets of auxiliary mold cavities.

The gasket injection mold with the replaceable insert is characterized in that a plurality of groups of forming mold cavities are arranged in the same radius and the same center of circle with a plurality of groups of auxiliary mold cavities, the plurality of groups of forming mold cavities are communicated with the plurality of groups of auxiliary mold cavities to form gasket mold cavities with different specifications, the blank position in the middle of the mold is fully utilized, the auxiliary flow channels 6 are arranged between the gasket mold cavities, materials flow in the gasket mold cavities and flow to the next gasket mold cavity through the auxiliary flow channels 6, gaskets with different specifications can be produced simultaneously, the injection molding efficiency of the gaskets is improved, the gaskets with various specifications use the same set of mold, the investment of mold equipment can be reduced, the production cost is reduced, the mold insert 2 can be detachably connected, when the mold core insert 2 is replaced, the auxiliary flow channels 6 are arranged on the mold core insert 2, and the gaskets with different specifications can be randomly combined and produced simultaneously.

As shown in fig. 1, 2, 5 to 7, the mold insert 2 is connected to the base plate 1 by a detachable connecting member 4, so that the mold insert 2 can be replaced, and gaskets of different specifications can be produced in a combined manner.

The connecting piece 4 is a screw, and it should be noted that other connecting pieces 4 and components thereof capable of realizing detachable connection of the mold core insert 2 and the bottom plate 1 in the embodiment are all suitable for the embodiment.

As shown in fig. 2, the bottom plate 1 is provided with a groove 3, and the mold insert 2 is embedded in the groove 3, so that the top of the mold insert 2 and the top of the bottom plate 1 are on the same horizontal plane, and the auxiliary mold cavity at the top of the mold insert 2 is communicated with the molding cavity at the top of the bottom plate 1.

As shown in fig. 1 to 3 and 5 to 7, the bottom plate 1 is provided with a feed inlet 7, the feed inlet 7 is communicated with an auxiliary mold cavity adjacent to the feed inlet 7, and during injection molding, material flows to the auxiliary mold cavity after entering from the feed inlet 7 and then flows into a molding cavity to complete injection molding of the whole gasket.

As shown in fig. 1, the bottom plate 1 is provided with a plurality of ejector pins 5, and after the gasket is injection-molded, the ejector pins 5 eject the gasket.

As shown in fig. 1, the mold core insert 2 includes a first insert 21 and a second insert 22, the recess 3 includes a first recess 31 and a second recess 32 respectively matching with the first insert 21 and the second insert 22, the first insert 21 and the second insert 22 are both provided with auxiliary mold cavities, and the feed port 7 is connected with the first insert 21. Specifically, the material entering from the feeding hole 7 enters the auxiliary mold cavity of the first mold insert 21 and then flows into the molding cavity, the material is merged into the auxiliary mold cavity of the second mold insert 22 from the molding cavity to complete the filling of one gasket cavity, and the material flows through the auxiliary runner 6 again to continue the filling of the next gasket cavity.

As shown in fig. 1 to 3 and 5 to 7, the mold core insert 2 further includes a third insert 23 and a fourth insert 24, the groove 3 further includes a third groove 33 and a fourth groove 34 respectively matched with the third insert 23 and the fourth insert 24, the third insert 23 and the fourth insert 24 are both provided with auxiliary mold cavities, two sets of molding cavities are symmetrically arranged, one set of molding cavities is connected with the first insert 21 and the second insert 22, the other set of molding cavities is connected with the third insert 23 and the fourth insert 24, and two ends of the feed port 7 are respectively connected with the first insert 21 and the third insert 23. When the first insert 21 and the third insert 23 are identical in structure, and the second insert 22 and the fourth insert 24 are identical in structure, two gaskets with different specifications are produced.

As shown in fig. 2, each set of molding cavities includes a first molding cavity 11, a second molding cavity 12, a third molding cavity 13 and a fourth molding cavity 14, the auxiliary molding cavities include a first auxiliary molding cavity 25, a second auxiliary molding cavity 26, a third auxiliary molding cavity 27 and a fourth auxiliary molding cavity 28 respectively communicated with the first molding cavity 11, the second molding cavity 12, the third molding cavity 13 and the fourth molding cavity 14, and the feed inlet 7 is connected with the first auxiliary molding cavity 25, the second auxiliary molding cavity 26, the third auxiliary molding cavity 27 or the fourth auxiliary molding cavity 28, and at most four gaskets with different specifications can be simultaneously produced by the mold.

The auxiliary runners 6 on top of the first, second, third and fourth inserts 21, 22, 23, 24 may be: is arranged between the first auxiliary cavity 25 and the second auxiliary cavity 26; or both between the first auxiliary cavity 25 and the second auxiliary cavity 26 and between the third auxiliary cavity 27 and the fourth auxiliary cavity 8; or between the second auxiliary cavity 26 and the third auxiliary cavity 27.

Example two

The present embodiment is similar to the present embodiment, except that, as shown in fig. 1 and fig. 2, the first insert 21, the second insert 22, the third insert 23 and the fourth insert 24 are respectively provided with a first auxiliary cavity 25, a second auxiliary cavity 26, a third auxiliary cavity 27 and a fourth auxiliary cavity 28, an auxiliary runner 6 is provided between the second auxiliary cavity 26 and the third auxiliary cavity 27 of the first insert 21, an auxiliary runner 6 is provided between the first auxiliary cavity 25 and the second auxiliary cavity 26 of the second insert 22 and between the third auxiliary cavity 27 and the fourth auxiliary cavity 28 of the second insert 22, as shown in fig. 4, an auxiliary runner 6 is provided between the second auxiliary cavity 26 and the third auxiliary cavity 27 of the third insert 23, and the structure of the fourth insert 24 is identical to that of the second insert 22, that is, the auxiliary runner 6 is provided between the first auxiliary cavity 25 and the second auxiliary cavity 26 of the fourth insert 23 and between the third auxiliary cavity 27 and the fourth auxiliary cavity 28, and both ends of the feed inlet 7 are respectively provided with the first auxiliary cavity 25 of the first insert 21 and the first auxiliary cavity 23 of the third insert 23 25, four gaskets with different specifications can be simultaneously produced, and each type of gasket has two gaskets.

EXAMPLE III

The second embodiment is similar to the second embodiment, except that, as shown in fig. 5, the second mold part 22 is provided with a first auxiliary cavity 25, a second auxiliary cavity 26 and a third auxiliary cavity 27, an auxiliary runner 6 is provided between the first auxiliary cavity 25 and the second auxiliary cavity 26 on the second mold part 22, the structure of the fourth mold part 24 is identical to that of the second mold part 22, that is, the fourth mold part 24 is provided with a first auxiliary cavity 25, a second auxiliary cavity 26 and a third auxiliary cavity 27, an auxiliary runner 6 is provided between the first auxiliary cavity 25 and the second auxiliary cavity 26 on the fourth mold part 24, and two ends of the feed port 7 are respectively connected with the first auxiliary cavity 25 of the first mold part 21 and the first auxiliary cavity 25 of the third mold part 24, in this case, gaskets of three specifications can be produced simultaneously, and there are two gaskets for each kind.

Example four

This embodiment is similar to the second embodiment except that, as shown in fig. 6, the second and fourth insert parts 22 and 24 are provided with a first auxiliary cavity 25 and a second auxiliary cavity 26 connected by the auxiliary runner 6, and both ends of the feed port 7 are connected to the first auxiliary cavity 25 of the first insert part 21 and the first auxiliary cavity 25 of the third insert part 23, respectively, in this case, two gaskets of two sizes can be simultaneously produced, and there are two gaskets for each type.

EXAMPLE five

This embodiment is similar to the second embodiment except that, as shown in fig. 7, only the first auxiliary cavity 25 is provided on each of the second insert part 22 and the fourth insert part 24, and both ends of the feed port 7 are respectively connected with the first auxiliary cavity 25 of the first insert part 21 and the first auxiliary cavity 25 of the third insert part 23, so that two gaskets of the same specification are produced.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a packing ring injection mold of removable mold insert, including bottom plate (1) and with bottom plate (1) can dismantle mould benevolence mold insert (2) of connecting, its characterized in that, bottom plate (1) is equipped with the multiunit and is convex die cavity, the multiunit the radius of die cavity is different, mould benevolence mold insert (2) are equipped with the multiunit and are convex supplementary die cavity, the multiunit the die cavity respectively with the multiunit the radius of assisting the die cavity is the same and with the centre of a circle setting, the quantity of assisting the die cavity is not more than the quantity of die cavity, and the multiunit the die cavity respectively with the multiunit assist the one-to-one intercommunication of die cavity forms a plurality of closed ring form packing ring die cavities, at least two sets of assist and be connected with between the die cavity and assist runner (6).

2. The insert-replaceable gasket injection mold according to claim 1, wherein the core insert (2) is connected to the base plate (1) by a detachable connection (4).

3. The replaceable insert gasket injection mold according to claim 2, wherein the connecting member (4) is a screw.

4. The insert-replaceable gasket injection mold according to any one of claims 1 to 3, wherein the bottom plate (1) is provided with a groove (3), and the core insert (2) is inserted into the groove (3).

5. The insert replaceable gasket injection mold according to claim 4, wherein the base plate (1) is provided with a feed opening (7), the feed opening (7) communicating with the auxiliary mold cavity adjacent to the feed opening (7).

6. The insert-replaceable gasket injection mold according to claim 5, wherein the base plate (1) is provided with a plurality of ejector pins (5).

7. The insert-replaceable gasket injection mold according to claim 6, wherein the core insert (2) comprises a first insert (21) and a second insert (22), the recess (3) comprises a first recess (31) and a second recess (32) cooperating with the first insert (21) and the second insert (22), respectively, the first insert (21) and the second insert (22) are provided with the auxiliary cavity, and the feed port (7) is connected with the first insert (21).

8. The insert-replaceable gasket injection mold according to claim 7, wherein the mold core insert (2) further comprises a third insert (23) and a fourth insert (24), the groove (3) further comprises a third groove (33) and a fourth groove (34) respectively matched with the third insert (23) and the fourth insert (24), the third insert (23) and the fourth insert (24) are respectively provided with the auxiliary mold cavities, two sets of the molding cavities are symmetrically arranged, one set of the molding cavities is connected with the first insert (21) and the second insert (22), the other set of the molding cavities is connected with the third insert (23) and the fourth insert (24), and two ends of the feed port (7) are respectively connected with the first insert (21) and the third insert (23).

9. The replaceable insert gasket injection mold according to claim 8, wherein each set of the molding cavities includes a first molding cavity (11), a second molding cavity (12), a third molding cavity (13), and a fourth molding cavity (14), the auxiliary molding cavities include a first auxiliary molding cavity (25), a second auxiliary molding cavity (26), a third auxiliary molding cavity (27), and a fourth auxiliary molding cavity (28) respectively communicating with the first molding cavity (11), the second molding cavity (12), the third molding cavity (13), and the fourth molding cavity (14), and the feed port (7) is connected to the first auxiliary molding cavity (25), the second auxiliary molding cavity (26), the third auxiliary molding cavity (27), or the fourth auxiliary molding cavity (28).

10. The replaceable insert gasket injection mold according to claim 9, wherein the auxiliary runner (6) at the top of the first insert (21), the second insert (22), the third insert (23) and the fourth insert (24) is: is arranged between the first auxiliary mould cavity (25) and the second auxiliary mould cavity (26); or both between the first auxiliary cavity (25) and the second auxiliary cavity (26) and between the third auxiliary cavity (27) and the fourth auxiliary cavity (28); or between the second auxiliary cavity (26) and the third auxiliary cavity (27).

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