CN210758970U - Support device of laminated injection mold - Google Patents

Abstract

The utility model relates to a stromatolite injection mold's strutting arrangement includes first bedplate, first mould foot, first movable mould, first cover half, first hot runner plate, second cover half, second movable mould, second mould foot, second bedplate in proper order, the below of first cover half, first hot runner plate, second cover half is fixed with the supporting legs, the supporting legs is the arch bridge type, the both sides of supporting legs bottom all are provided with height adjusting mechanism. Compared with the prior art, the utility model discloses set up supporting legs and height adjusting mechanism in stromatolite mould's bottom, effectively support the mould, drop from the injection molding machine when preventing first cover half, first hot runner plate, second cover half die sinking, more reliable and more stable, also can adjust the altitude balance of mould both sides in a flexible way, avoid the mould slope to place, the influence is moulded plastics.

Description

Support device of laminated injection mold

Technical Field

The utility model relates to a stromatolite injection mold's strutting arrangement belongs to injection mold technical field.

Background

The traditional horizontal injection molding machine has the advantages that the mold only has one mold cavity, only one product can be produced by opening and closing the mold each time, the production efficiency is low, and the performance of the injection molding machine is not fully exerted. Therefore, a double-cavity laminated injection mold is designed, and is widely applied to the injection molding processing process and suitable for producing and molding large flat parts, parts such as shallow-cavity shells, small multi-cavity thin-wall parts and parts needing mass production. The double-cavity laminated injection mold combines two common injection molds together and is arranged in an overlapped mode, the two common injection molds generally comprise three parts, namely a movable mold part, a middle mold part and a fixed mold part, the movable mold part and the fixed mold part can move relative to the middle mold part, so that the mold opening and closing are realized, and double plastic parts can be obtained after injection molding is finished. However, after the existing double-cavity laminated injection mold is opened, the middle mold part is too heavy, so that the middle mold part is likely to fall off from an injection molding machine in the process of opening the mold, the mold is damaged, and certain danger is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming of prior art, provide a stromatolite injection mold's strutting arrangement.

For realizing the purpose the utility model adopts the technical proposal that:

stromatolite injection mold's strutting arrangement includes first bedplate, first mould foot, first movable mould, first cover half, first hot runner plate, second cover half, second movable mould, second mould foot, second bedplate in proper order, first movable mould with first cover half cooperation forms the die cavity, the second cover half with the second movable mould cooperation forms the die cavity, the below of first cover half, first hot runner plate, second cover half is fixed with the supporting legs, the supporting legs is the arch bridge type, the both sides of supporting legs bottom all are provided with height adjusting mechanism.

As a further optimization of the above technical solution: height adjusting mechanism includes the first regulating block of bottom, first regulating block is fixed on the injection molding machine guide rail, turn right from a left side and make the upper surface of first regulating block and have installation arch, supplementary mounting groove and slip inclined plane, be equipped with supplementary regulating block in the supplementary mounting groove, be equipped with the second regulating block on the slip inclined plane, the bottom surface of second regulating block make with slip inclined plane complex leads the slip inclined plane, the screw passes the installation arch with supplementary regulating block is installed in the second regulating block, be fixed with the spacer block on the second regulating block, the spacer block is fixed the both sides of supporting foot bottom.

As a further optimization of the above technical solution: the included angle between the plane of the sliding inclined plane and the horizontal plane is 5 degrees.

Compared with the prior art, the utility model discloses set up supporting legs and height adjusting mechanism in stromatolite mould's bottom, effectively support the mould, drop from the injection molding machine when preventing first cover half, first hot runner plate, second cover half die sinking, more reliable and more stable, also can adjust the altitude balance of mould both sides in a flexible way, avoid the mould slope to place, the influence is moulded plastics.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the utility model discloses a three-dimensional structure schematic diagram of synchronous equidistance die sinking mechanism among the double mode chamber stromatolite injection mold.

Fig. 3 is a schematic sectional structure view of the utility model after the supporting feet are removed and the clockwise rotation is 90 degrees.

Fig. 4 is a schematic cross-sectional view of the travel guide post and guide post sleeve of fig. 3.

Fig. 5 is a schematic structural view of another aspect of the present invention.

Fig. 6 is a schematic structural diagram of the height adjusting mechanism of the present invention.

Fig. 7 is a schematic sectional structure view of a hot runner system in a dual-cavity stacked injection mold according to the present invention.

Fig. 8 is a schematic view of the three-dimensional structure of the blowing block in the dual-cavity laminated injection mold of the present invention.

Fig. 9 is a schematic perspective view of a hot runner system in a dual-cavity stacked injection mold according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description. As shown in fig. 1-9, used the utility model discloses a double-mold cavity stromatolite injection mold includes first bedplate 17, first die foot 1, first movable mould 2, first fixed mould 3, first hot runner plate 4, second hot runner plate 5, second fixed mould 6, second movable mould 7, second die foot 8, second bedplate 18 in proper order, first movable mould 2, the cooperation of first fixed mould 3 form two die cavities, second fixed mould 6 with the cooperation of second movable mould 7 forms two die cavities, total four die cavities promptly. The die is also provided with a guide post hole, a stroke guide post 13 is arranged in the guide post hole, one end of the stroke guide post 13 is fixed on the first base plate 17, the other end of the stroke guide post is positioned in the second die pin 8, a guide post sleeve 19 is further arranged in the first fixed die 3, the first hot runner plate 4, the second hot runner plate 5, the second fixed die 6 and the second movable die 7, the inner wall of the guide post sleeve 19 is tightly attached to the outer wall of the stroke guide post 13, a guiding effect is achieved, and the die opening and closing stability of the die is guaranteed. In the present embodiment, eight stroke guide pillars 13 are provided.

In the above technical scheme: as shown in fig. 1 and 2, the double-cavity laminated injection mold of the circular air outlet grid further comprises a synchronous equidistant mold opening mechanism, the synchronous equidistant mold opening mechanism comprises a first rack 9, a second rack 10 and a gear 11 meshed with the first rack 9 and the second rack 10, wherein one end of the first rack 9 is fixed on the first movable mold 2, the other end of the first rack extends to a second mold foot 8, one end of the second rack 10 is fixed on the second movable mold 7, the other end of the second rack extends to the first mold foot 1, the gear 11 is installed on the first hot runner plate 4 and the second hot runner plate 5, a gear protection cover 12 is further fixed on the first and second hot runner plates 4 and 5, and the gear 11 is located in the gear protection cover 12. The gear protection cover 12 protects the gear 11. When the mold is opened, the oil cylinder drives the first mold foot 1 and the first movable mold 2 to do mold opening movement, the first rack 9 is also driven to move towards the left side, and the gear 11 is driven to start rotating in situ because the gear 11 is mounted on the first hot runner plate 4 and the second hot runner plate 5 and cannot move towards the left side along with the first rack 9, so that the second rack 10 is driven to move towards the right side, and the second movable mold 7, the second mold foot 8 and the second fixed mold 6 are separated. The first movable die 2, the first fixed die 3, the second fixed die 6 and the second movable die 7 are synchronously opened at equal intervals by the aid of the matching of the first rack 9, the second rack 10 and the gear 11, complete synchronization of opening and closing dies is guaranteed, and production efficiency is maximized.

In the above technical scheme: supporting legs 14 are fixed below the first fixed die 3, the first hot runner plate 4, the second hot runner plate 5 and the second fixed die 6. As shown in fig. 5, the supporting foot 14 is arch bridge shaped, and the height adjusting mechanisms 15 are disposed on both sides of the bottom of the supporting foot 14. As shown in fig. 6, the height adjusting mechanism 15 includes a first adjusting block 151 at the bottom, the first adjusting block 151 is fixed on a guide rail of the injection molding machine, an installation protrusion 1511, an auxiliary installation groove 1512 and a sliding inclined surface 1513 are formed on the upper surface of the first adjusting block 151 from left to right, and an included angle between a plane where the sliding inclined surface 1513 is located and a horizontal plane is 5 ° in this embodiment. An auxiliary adjusting block 152 is arranged in the auxiliary installing groove 1512, a second adjusting block 153 is arranged on the sliding inclined surface 1513, a sliding guide inclined surface matched with the sliding inclined surface 1513 is formed on the bottom surface of the second adjusting block 153, a screw 16 penetrates through the installing protrusion 1511 and the auxiliary adjusting block 152 and is installed in the second adjusting block 153, a supporting cushion block 154 is fixed on the second adjusting block 153, and the supporting cushion block 154 is fixed on two sides of the bottom of the supporting leg 14. The supporting legs 14 are used for supporting the first fixed die 2, the first hot runner plate 4, the second hot runner plate 5 and the second fixed die 6, so that the first fixed die, the first hot runner plate 4, the second hot runner plate 5 and the second fixed die 6 are prevented from falling off from an injection molding machine when the first fixed die, the second hot runner plate and the second fixed die are opened, the stability and the reliability are improved, and. The height adjusting mechanism 15 adjusts the height balance of both sides of the mold by turning the screw 16, and the tighter the screw 16 is screwed, the higher the height of the lip block 154, and the looser the screw 16 is screwed, the lower the height of the lip block 154. The auxiliary adjusting block 152 slows down the adjusting amount of the screw 16, and avoids the damage caused by the excessive inclination of the mold due to the large height fluctuation when the screw 16 directly adjusts the second adjusting block 153.

In the above technical scheme: still include hot runner system, as shown in fig. 7, 9, hot runner system includes main nozzle 20, main nozzle 20 is fixed the middle part of first bedplate 17, the below of main nozzle 20 has connected gradually first needle 21 and second valve needle 22, the bottom of second valve needle 22 is connected with flow distribution plate 23, flow distribution plate 23 is located in first hot runner board 4 and the second hot runner board 5, be connected with hot nozzle 24 on the flow distribution plate 23, hot nozzle 24 with the die cavity cooperation, the die cavity is equipped with four in this embodiment, and hot nozzle 24 is equipped with twenty, and every die cavity all has five hot nozzles 24 to advance gluey promptly, has improved production efficiency greatly. After the mold closing is finished, the main nozzle 20 starts to perform injection molding, the molten plastic directly reaches the first and second heat flow channel plates 4 and 5 through the first valve needle 21 and the second valve needle 22, and then is divided into the heat nozzles 24 through the flow dividing plate 23, and the heat nozzles 24 perform injection molding on the molten plastic into corresponding mold cavities. The main nozzle 20 is adopted for injection molding, so that the thickness of the mold is greatly reduced, the tonnage of the injection molding machine required by mold production is reduced, the cost is saved, twenty hot nozzles 24 are adopted for injection molding simultaneously, the simultaneous production of four mold cavities is realized, and the production efficiency is greatly improved.

In the above technical scheme: the first moving die 2 is further fixed with an air blowing block 25, as shown in fig. 8, the air blowing block 25 includes a fixed bottom plate 251 and a protrusion 252 located in the middle of the fixed bottom plate 251, the fixed bottom plate 251 is formed with two screw holes 2511, a fixing screw passes through the screw hole 2511 and is fixed on the first moving die 2, an air passage is formed in the air blowing block 25, the air passage includes a first air passage 253 vertically arranged and a second air passage 254 obliquely arranged, the tail of the second air passage 254 is communicated with the head of the first air passage 253, and the head of the second air passage 254 passes through the air blowing block 25 and faces the joint between the first valve needle 21 and the second valve needle 22. Because first needle 21 and second needle 22 need go out simultaneously to glue and seal the glue, the required precision is high, the unavoidable problem that can appear the overlap, consequently sets up the blowing piece 25 and blows off the overlap, guarantees that later stage volume production does not receive the influence. The diameter of the head of the second air passage 254 is reduced to form an air blowing acceleration passage 2541, the transition surface at the tail of the air blowing acceleration passage 2541 is made into an inclined surface, and the air blowing acceleration passage 2541 accelerates the air flowing speed, so that air is blown more forcefully to the flash. The tail of the second air passage 254 is further connected with a fixing plug 255, the other end of the fixing plug 255 is fixed to one side face of the air blowing block 25, the fixing plug 255 plays a role in reinforcing the second air passage 254, and therefore the situation that the inclination angle of the second air passage 254 changes and gas cannot be blown to a flash accurately is avoided. The second vent passage 254 and the fixed plug 255 are both located in the protrusion 252.

In the above technical scheme: the bottom of the first air channel 253 penetrates through the bottom of the air blowing block 25, an outer air channel 31 is formed in the mold, the outer air channel 31 is positioned below the first air channel 253, and the first air channel 253 is communicated with the outer air channel 31. The gas enters the air blowing block 25 from the outer air duct 31, and blows out the flash at the joint of the first valve needle 21 and the second valve needle 22 through the second air duct 254 which is obliquely arranged.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, all should fall into the protection scope of the utility model, the technical scheme that the design of this technical field technical personnel according to the utility model can be obtained through logic analysis, reasoning or limited experiment on prior art's basis, all should fall into.

Claims (3)

1. Supporting device of stromatolite injection mold, its characterized in that include first bedplate (17), first die foot (1), first movable mould (2), first cover half (3), first hot runner plate (4), second hot runner plate (5), second cover half (6), second movable mould (7), second die foot (8), second bedplate (18) in proper order, first movable mould (2) with first cover half (3) cooperation forms the die cavity, second cover half (6) with second movable mould (7) cooperation forms the die cavity, the below of first cover half (3), first hot runner plate (4), second hot runner plate (5), second cover half (6) is fixed with supporting legs (14), supporting legs (14) are the bridge type, the both sides of supporting legs (14) bottom all are provided with height adjusting mechanism (15).

2. The supporting device of the laminated injection mold according to claim 1, wherein the height adjusting mechanism (15) comprises a first adjusting block (151) at the bottom, the first adjusting block (151) is fixed on the injection molding machine guide rail, the upper surface of the first adjusting block (151) is provided with a mounting protrusion (1511), an auxiliary mounting groove (1512) and a sliding inclined surface (1513) from left to right, an auxiliary adjusting block (152) is arranged in the auxiliary mounting groove (1512), a second adjusting block (153) is arranged on the sliding inclined surface (1513), the bottom surface of the second adjusting block (153) is provided with a sliding guide inclined surface matched with the sliding inclined surface (1513), a screw (16) passes through the mounting protrusion (1511) and the auxiliary adjusting block (152) and is arranged in the second adjusting block (153), a supporting cushion block (154) is fixed on the second adjusting block (153), the supporting cushion blocks (154) are fixed on two sides of the bottom of the supporting foot (14).

3. The support device for laminated injection molds according to claim 2, characterized in that the angle between the plane of the sliding slope (1513) and the horizontal plane is 5 °.

Images