CN212072654U

CN212072654U - Compression mold of silica gel funnel

Info

Publication number: CN212072654U
Application number: CN202020694394.6U
Authority: CN
Inventors: 张奔; 李琦; 高勇
Original assignee: Shenzhen Xinhetai Rubber Products Co ltd
Current assignee: Shenzhen Xinhetai Rubber Products Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-04
Anticipated expiration: 2030-04-29

Abstract

The utility model belongs to the technical field of the technique of mould and specifically relates to a compression moulding mould of silica gel funnel is related to. The technical key points are as follows: the upper die comprises an upper die, an upper middle die, a lower middle die and a lower die which are sequentially arranged from top to bottom, wherein a first core is arranged on the lower surface of the upper die, a second core which is tubular is arranged on the upper surface of the lower die, a first groove is formed in the upper middle die, a first through hole is formed in the bottom of the first groove in a penetrating mode, a second groove is formed in the upper surface of the lower middle die, a third groove is formed in the lower surface of the lower middle die, a second through hole is formed in the bottom of the second groove in a penetrating mode, the first core and the second core are matched with the first groove, the first through hole, the second groove, the second through hole and the third groove. The utility model discloses its advantage lies in simple structure, economical and practical conveniently carries out the production of this kind of silica gel funnel.

Description

Compression mold of silica gel funnel

Technical Field

The utility model belongs to the technical field of the technique of mould and specifically relates to a compression moulding mould of silica gel funnel is related to.

Background

The compression mould is called compression mould for short, the plastic raw material is directly added into the open mould cavity, the mould is closed, the plastic becomes a flowing state under the action of heating and pressure and fills the cavity, and then the product is hardened and shaped through chemical crosslinking or physical cooling. The molds used in this method are compression molds.

As shown in fig. 1, a silica gel funnel 1 product to be produced structurally comprises a first cylinder 11, a second cylinder 12 is communicated with the lower end of the first cylinder 11, a clamping ring 13 is arranged on the circumferential surface of the lower end of the second cylinder 12, the lower surface of the clamping ring 13 is flush with the lower surface of the second cylinder 12, a first circular tube 14 is connected with the lower end of the second cylinder 12, a second circular tube 15 is communicated with the lower end of the second cylinder 12, the length of the first circular tube 14 is greater than that of the second circular tube 15, a clamping hook ring 16 is arranged on the circumferential surface of the lower end of the first circular tube 14, a chamfer is arranged on the lower side of the clamping hook ring 16, and the structures are all coaxially arranged.

In order to produce the silica gel funnel, a compression mold needs to be designed to fulfill the corresponding purpose because the heat flow of the silica gel is poor and the common injection molding production mode is obviously not applicable.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a compression moulding mould of silica gel funnel, its advantage lies in simple structure, economical and practical conveniently carries out the production of this kind of silica gel funnel.

The above technical purpose of the present invention can be achieved by the following technical solutions: a compression mold of a silica gel funnel comprises an upper mold, an upper middle mold, a lower middle mold and a lower mold which are sequentially arranged from top to bottom, wherein a first core is arranged on the lower surface of the upper mold, the outer side wall of the first core can be attached to the inner side walls of a first cylinder, a second cylinder and a second circular tube, a tubular second core is arranged on the upper surface of the lower mold, the inner side wall and the outer side wall of the second core can be respectively attached to the outer side wall of the second circular tube and the inner side wall of the first circular tube, a first groove which can be matched with the outer side wall of the first cylinder is formed in the upper middle mold, a first through hole which can be matched with the outer side wall of the second cylinder is arranged at the bottom of the first groove in a penetrating manner, a second groove which can be matched with the outer side wall of a clamping ring is formed in the upper surface of the lower middle mold, a third, the tank bottom of second recess is run through and is provided with the second through-hole, first core and the cooperation of second core first recess, first through-hole, second recess, second through-hole and third recess can form the die cavity that is used for compression moulding silica gel funnel.

Through the technical scheme, utilize the utility model provides a when compression molding mould carries out the compression molding of silica gel funnel, earlier with the lower mould, well mould and last well mould be in the same place down, then put into first recess with the silicon rubber that the ration is good, will go up mould towards the downward pressfitting of well mould in the last after that, until the lower surface of last mould can when the upper surface of well mould offsets tightly, then wait the silica gel funnel design good back, to the upper surface that will go up mould and lower mould and break away from well mould respectively and the lower surface of well mould down, will break away from the lower surface of well mould down after that, then take out the silica gel funnel can, so this mould simple structure, economical and practical, conveniently carry out the production of this kind of silica gel funnel.

The present invention may be further configured in a preferred embodiment as: the number of the cavities is a plurality, and the cavities are uniformly arranged at intervals.

Through adopting above-mentioned technical scheme, the setting up of a plurality of die cavity makes once processing can obtain a plurality of silica gel funnel to improve production efficiency.

The present invention may be further configured in a preferred embodiment as: the upper die, the upper middle die, the lower middle die and the lower die are all provided with guide holes, and guide rods are arranged in the guide holes.

Through adopting above-mentioned technical scheme, the setting of guide arm plays the effect of location for go up mould, last well mould, lower well mould and lower mould alignment, thereby conveniently form the die cavity.

The present invention may be further configured in a preferred embodiment as: the lower surface of going up the mould is provided with the locating piece, the locating piece is located first core one side, the upper surface of going up the well mould be provided with the locating piece grafting complex constant head tank.

By adopting the technical scheme, the stability of the cavity in the compression molding process can be ensured by arranging the positioning blocks, so that the uniformity of the wall thickness of the silica gel funnel is ensured, and the product percent of pass is improved.

The present invention may be further configured in a preferred embodiment as: and a chamfer is arranged on the side surface of the positioning block, which is far away from the upper die.

Through adopting above-mentioned technical scheme, the setting of chamfer plays the guide effect, makes things convenient for the locating piece to peg graft and cooperates in the constant head tank.

The present invention may be further configured in a preferred embodiment as: the positioning blocks are arranged symmetrically with respect to the first mold core.

Through adopting above-mentioned technical scheme, the stability of die cavity is further improved in the setting of a plurality of constant head tank.

The present invention may be further configured in a preferred embodiment as: the mold comprises an upper mold, an upper middle mold, a lower middle mold and a lower mold, wherein exhaust grooves are formed in the surfaces between every two adjacent upper molds, the bottom of the second mold core is provided with exhaust grooves with the same effect, and the exhaust grooves are close to the mold cavity.

By adopting the technical scheme, the air in the die cavity can be removed by the arrangement of the exhaust groove, various defects on the surface of the silica gel funnel are eliminated, and the qualification rate of products is improved.

The present invention may be further configured in a preferred embodiment as: the lower surface of going up mould and last well mould all is provided with the extension tank that is used for avoiding producing the overlap, the upper surface of lower mould also is provided with the extension tank that is used for avoiding producing the overlap.

Through adopting above-mentioned technical scheme, the contact surface of two adjacent moulds and each surface face of product are avoided being located the coplanar in the setting of extension groove to avoid overlap or unedged production.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the compression mold of the utility model is used for compression molding of the silica gel funnel, the lower mold, the lower middle mold and the upper middle mold are combined together, then the quantitative silicone rubber is put into the first groove, then the upper mold is pressed downwards towards the upper middle mold until the lower surface of the upper mold is tightly propped against the upper surface of the upper middle mold, then after the silica gel funnel is shaped, the upper mold and the lower mold are respectively separated from the upper surface of the upper middle mold and the lower surface of the lower middle mold, then the lower middle mold is separated from the lower surface of the upper middle mold, and then the silica gel funnel is taken out;

2. the arrangement of the plurality of cavities enables a plurality of silica gel funnels to be obtained by one-time processing, so that the production efficiency is improved;

3. the stability of the cavity in the compression molding process can be ensured through the arrangement of the positioning blocks, so that the uniformity of the wall thickness of the silica gel funnel is ensured, and the product percent of pass is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of a silica gel funnel in an embodiment of the present invention;

FIG. 2 is a schematic view of the entire structure of the compression mold in the closing state according to the embodiment of the present invention;

FIG. 3 is an exploded view of a compression mold and a silicone funnel according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of the compression mold in the embodiment of the present invention, taken along a central axis of a first core, showing a plane in which the upper mold is located in the width direction;

fig. 5 is an enlarged schematic view of a portion a of fig. 4.

Reference numerals: 1. a silica gel funnel; 11. a first cylinder; 12. a second cylinder; 13. a snap ring; 14. a first circular tube; 15. a second circular tube; 16. a hook ring; 2. an upper die; 21. a first core; 22. positioning blocks; 3. an upper middle die; 31. a first groove; 32. a first through hole; 33. positioning a groove; 4. a lower middle die; 41. a second groove; 42. a third groove; 43. a second through hole; 5. a lower die; 51. a second core; 6. an elongated slot; 7. a cavity; 8. an exhaust ring; 81. an exhaust groove; 9. and (4) a guide hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, for the utility model discloses a compression moulding mould of silica gel funnel, including top-down in proper order the level set up go up mould 2, go up well mould 3, well mould 4 and lower mould 5 in the lower.

Referring to fig. 3, a first core 21 is vertically disposed on the lower surface of the upper mold 2, the first core 21 is integrally formed with the upper mold 2, and the outer sidewall of the first core 21 can be attached to the inner sidewalls of the first cylinder 11, the second cylinder 12 and the second circular tube 15 of the silicone funnel 1.

Referring to fig. 3 and 4, the upper surface of the lower mold 5 is vertically provided with a second core 51 having a tubular shape, inner and outer sidewalls of the second core 51 may be respectively attached to an outer sidewall of the second circular tube 15 and an inner sidewall of the first circular tube 14, and a top surface of the second core 51 may be abutted against a lower surface of the second cylinder 12.

Referring to fig. 3 and 5, the upper middle die 3 is provided with a first groove 31 which can be matched with the outer side wall of the first cylinder 11, the lower surface of the upper die 2 is provided with an elongated slot 6, the elongated slot 6 of the upper die 2 is annularly surrounded around the first mold core 21, the elongated slot 6 of the upper die 2 is communicated with the first groove 31, and the arrangement of the elongated slot 6 can prevent the product from flashing at the contact position of adjacent dies, improve the qualified rate of the product and reduce the post-processing procedures. The bottom of the first groove 31 is provided with a first through hole 32 matching with the outer side wall of the second cylinder 12.

Referring to fig. 3 and 5, the upper surface of the lower middle mold 4 is provided with a second groove 41 which can be matched with the outer side wall of the clamping ring 13, the lower surface of the upper middle mold 3 is also provided with a circular ring-shaped extension groove 6, the extension groove 6 of the upper middle mold 3 and the extension groove 6 of the upper mold 2 have the same action, and the extension groove 6 of the upper middle mold 3 is communicated with the second groove 41 of the lower middle mold 4 and is also communicated with the side wall of the second groove 41. The lower surface of the lower middle mold 4 is provided with a third groove 42 which can be matched with the outer side wall of the hook ring 16, the bottom of the second groove 41 is provided with a second through hole 43 in a penetrating manner, and the lower end of the second through hole 43 is communicated to the bottom of the third groove 42. Meanwhile, the upper surface of the lower die 5 is also provided with an elongated slot 6, the elongated slot 6 of the lower die 5 is annularly surrounded around the second core 51, the elongated slot 6 of the lower die 5 has the same function as the elongated slot 6 of the upper die 2, and the elongated slot 6 of the lower die 5 is communicated with the third groove 42.

Referring to fig. 3 and 5, in the above description, the first core 21 and the second core 51, in cooperation with the first groove 31, the first through hole 32, the second groove 41, the second through hole 43, the third groove 42 and each elongated groove 6, may form a plurality of cavities 7 for compression molding the silicone funnel 1, in this embodiment, the number of the cavities 7 is two, the two cavities 7 are arranged at intervals along the length direction of the upper mold 2, and the two cavities 7 are located at the middle position of the compression mold.

Referring to fig. 5, in addition, the upper mold 2, the upper middle mold 3, the lower middle mold 4 and the lower mold 5 are provided with annular exhaust grooves 81 on the surfaces between two adjacent ones, two adjacent exhaust grooves 81 are combined into one exhaust ring 8, the bottom of the second mold core 51 is provided with exhaust grooves 81 with the same function, and the exhaust grooves 81 are all close to the mold cavity 7.

Referring to fig. 3, in addition, the upper die 2, the upper middle die 3, the lower middle die 4 and the lower die 5 are all provided with guide holes 9, the number of the guide holes 9 on the same die is six, wherein every three guide holes 9 are close to the same side edge, guide rods (not shown in the figure) are arranged in the guide holes 9, the guide rods are in sliding fit with the guide holes 9, the upper die 2, the upper middle die 3, the lower middle die 4 and the lower die 5 are connected in series from top to bottom through the guide rods, and the guide rods are arranged to play a role in positioning, so that the upper die 2, the upper middle die 3, the lower middle die 4 and the lower die 5.

Referring to fig. 3 and 4, meanwhile, a positioning block 22 is vertically arranged on the lower surface of the upper die 2, a chamfer is arranged on the side of the positioning block 22 away from the upper die 2, the positioning block 22 is located on one side of the first core 21 and close to the first core 21, and the positioning block 22 is provided with a plurality of positioning blocks, in this embodiment, the number of the positioning blocks 22 is two, two positioning blocks 22 are symmetrically arranged about the first core 21, one end of the positioning block 22 along the length direction is close to the first core 21, the other end of the positioning block 22 is away from the first core 21, the length direction of the positioning block 22 is parallel to the width direction of the upper die 2, correspondingly, and a positioning groove 33 which is matched. The stability of the cavity 7 in the compression molding process can be ensured through the arrangement of the positioning block 22, so that the uniformity of the wall thickness of the silica gel funnel 1 is ensured, and the product percent of pass is improved.

The implementation principle of the embodiment is as follows: when the compression mold of the utility model is used for compression molding the silica gel funnel 1, the lower mold 5, the lower middle mold 4 and the upper middle mold 3 are firstly combined together along the guide rod, then, quantitative silicon rubber is put into the first groove 31, then the upper die 2 is pressed downwards towards the upper and middle dies 3 along the length direction of the guide rod, in the moving process, the positioning block 22 is inserted and matched with the positioning groove 33 until the lower surface of the upper die 2 is tightly propped against the upper surface of the upper middle die 3, then after the silica gel funnel 1 is shaped, the upper die 2 and the lower die 5 are respectively separated from the upper surface of the upper middle die 3 and the lower surface of the lower middle die 4, then the lower middle die 4 is separated from the lower surface of the upper middle die 3, then, the clamping ring 13 of the silica gel funnel 1 is extruded, the clamping ring 13 of the silica gel funnel 1 is partially pushed into the second groove 41, and the silica gel funnel 1 is drawn out from the first groove 31.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The compression molding mold of the silica gel funnel is characterized in that: the mold comprises an upper mold (2), an upper middle mold (3), a lower middle mold (4) and a lower mold (5) which are sequentially arranged from top to bottom, wherein a first mold core (21) is arranged on the lower surface of the upper mold (2), the outer side wall of the first mold core (21) can be attached to the inner side walls of a first cylinder (11), a second cylinder (12) and a second circular tube (15), a tubular second mold core (51) is arranged on the upper surface of the lower mold (5), the inner side wall and the outer side wall of the second mold core (51) can be respectively attached to the outer side wall of the second circular tube (15) and the inner side wall of the first circular tube (14), a first groove (31) which can be matched with the outer side wall of the first cylinder (11) is arranged on the upper middle mold (3), a first through hole (32) which can be matched with the outer side wall of the second cylinder (12) is arranged at the, the upper surface of lower well mould (4) is provided with can with joint ring (13) lateral wall matched with second recess (41), the lower surface of lower well mould (4) is provided with can with lateral wall matched with third recess (42) of trip ring (16), the tank bottom of second recess (41) is run through and is provided with second through-hole (43), first core (21) and second core (51) cooperation first recess (31), first through-hole (32), second recess (41), second through-hole (43) and third recess (42) can form die cavity (7) that are used for silica gel compression molding funnel (1).

2. The compression mold of a silicone funnel according to claim 1, wherein: the number of the die cavities (7) is a plurality, and the die cavities (7) are uniformly arranged at intervals.

3. The compression mold of a silicone funnel according to claim 1, wherein: the upper die (2), the upper middle die (3), the lower middle die (4) and the lower die (5) are all provided with guide holes (9), and guide rods are arranged in the guide holes (9).

4. The compression mold of a silicone funnel according to claim 1, wherein: the lower surface of the upper die (2) is provided with a positioning block (22), the positioning block (22) is located on one side of the first die core (21), and the upper surface of the upper middle die (3) is provided with a positioning groove (33) matched with the positioning block (22) in an inserting mode.

5. The compression mold of a silicone funnel, as recited in claim 4, further comprising: and a chamfer is arranged on the side surface of the positioning block (22) far away from the upper die (2).

6. The compression mold of a silicone funnel, as recited in claim 5, further comprising: the positioning blocks (22) are arranged in a plurality, and the positioning blocks (22) are symmetrically arranged relative to the first mold core (21).

7. The compression mold of a silicone funnel according to claim 1, wherein: go up mould (2), go up well mould (3), well mould (4) and lower mould (5) down, wherein two double-phase adjacent between all be provided with air discharge duct (81) on the surface, the bottom of second core (51) is provided with exhaust duct (81) of same effect, air discharge duct (81) are close to die cavity (7).

8. The compression mold of a silicone funnel according to claim 1, wherein: the lower surface of going up mould (2) and last well mould (3) all is provided with extension tank (6) that are used for avoiding producing the overlap, the upper surface of lower mould (5) also is provided with extension tank (6) that are used for avoiding producing the overlap.