CN219563965U

CN219563965U - Plastic pipe molding and processing equipment

Info

Publication number: CN219563965U
Application number: CN202320229331.7U
Authority: CN
Inventors: 贾波; 张清林
Original assignee: Shandong Huitongda Plastic Co ltd
Current assignee: Shandong Huitongda Plastic Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-08-22
Anticipated expiration: 2033-02-16

Abstract

The utility model discloses plastic pipe molding processing equipment which comprises a movable die, wherein a fixed die is arranged below the movable die, a second cavity is formed in the bottom end of the movable die, a first cavity is formed in the top end of the fixed die, a die core assembly is arranged in the first cavity and comprises a die core post, the bottom end of the die core post is fixedly connected with the inner wall of the first cavity, an injection molding hole is formed in the top end of the movable die, communication holes are formed in the top end of the die core post, a plurality of communication holes are formed in the bottom of the inner wall of the communication holes in an annular array, and diversion trenches are formed in the inner walls of the communication holes. According to the utility model, by means of the arrangement of the mold core post, the communication hole, the diversion holes and the diversion grooves, molten plastic entering through the injection holes passes through the communication hole and respectively enters the diversion holes, and then uniformly flows into the second cavity from multiple directions through the diversion grooves, so that the plastic entering the second cavity and the first cavity is uniformly cooled, and the molding quality of the plastic pipe is improved.

Description

Plastic pipe molding and processing equipment

Technical Field

The utility model relates to the technical field of plastic pipe molding, in particular to plastic pipe molding processing equipment.

Background

The plastic pipe is generally molded in an injection molding mode, molten plastic is injected into a cavity of a mold, and molded plastic pipe can be obtained along with cooling of the plastic in the cavity, but injection holes in the mold are positioned on one side of the cavity, so that the plastic pipe entering the injection holes is not uniformly dispersed in the cavity, and the plastic is not uniformly cooled, so that the molding quality of the plastic pipe is reduced.

Disclosure of Invention

The utility model aims to provide plastic pipe molding processing equipment for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the plastic pipe molding and processing equipment comprises a movable die, wherein a fixed die is arranged below the movable die, a second cavity is formed in the bottom end of the movable die, a first cavity is formed in the top end of the fixed die, and a plurality of groups of ejection mechanisms are arranged in the fixed die;

a mold core assembly is arranged in the first cavity;

the mold core assembly comprises a mold core post, the bottom of the mold core post is fixedly connected with the inner wall of the first cavity, an injection molding hole is formed in the top of the movable mold, a communication hole is formed in the top of the mold core post, a plurality of communication holes are formed in the bottom of the inner wall of the communication hole in an annular array, guide grooves are formed in the inner wall of the communication holes, and a heating mechanism is arranged at the top of the mold core post.

Preferably, the heating mechanism comprises a heating block, the top of the die core post is provided with an installation cavity, and the heating block is installed on the inner wall of the installation cavity.

Preferably, the ejection mechanism comprises a plurality of ejector rods, a plurality of movable holes are formed in the fixed die, and the outer walls of the ejector rods are respectively and movably inserted and connected with the inner walls of the movable holes.

Preferably, the bottom of first die cavity inner wall has seted up a plurality of draw-in grooves, and is a plurality of the inside of draw-in groove is linked together by the inside of a plurality of movable holes respectively, and a plurality of the inner wall of draw-in groove all activity interlude is connected with the fixture block, a plurality of the bottom of fixture block respectively with the top fixed connection of a plurality of ejector pins.

Preferably, the movable cavity is arranged in the fixed die, the inner wall of the movable cavity is slidably connected with the top plate, the top ends of the top plate are fixedly connected with the bottom ends of the plurality of ejector rods respectively, the hydraulic cylinder is arranged at the bottom end of the inner wall of the movable cavity, and the output end of the hydraulic cylinder is in transmission connection with the bottom ends of the top plate.

Preferably, the top fixedly connected with of movable mould goes up the connecting seat, the bottom fixedly connected with of cover half is connecting seat down, go up the connecting seat and be provided with multiunit guiding mechanism down between the connecting seat.

Preferably, the guide mechanism comprises a guide sleeve and a guide rod, the guide sleeve is fixedly connected to the bottom end of the upper connecting seat, the guide rod is fixedly connected to the top end of the lower connecting seat, and the outer wall of the guide rod is movably inserted and connected with the inner wall of the guide sleeve.

The utility model has the technical effects and advantages that:

(1) According to the utility model, by means of the arrangement of the mold core post, the communication hole, the diversion holes and the diversion grooves, molten plastic entering through the injection holes passes through the communication hole and respectively enters the diversion holes, and then uniformly flows into the second cavity from multiple directions through the diversion grooves, so that the plastic entering the second cavity and the first cavity is uniformly cooled, and the molding quality of the plastic pipe is improved;

(2) According to the utility model, the installation cavity and the heating block are utilized, and the heating block works in the installation cavity, so that the heating block can be heated, and the plastic formed in the diversion hole and the diversion trench can be heated to a molten state, thereby avoiding the phenomenon of blocking in the diversion hole and the diversion trench, and improving the smoothness of the use of the die.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic diagram of a front cross-sectional configuration of a die core post of the present utility model.

Fig. 3 is a schematic view of a partial enlarged structure at a of fig. 2 according to the present utility model.

Fig. 4 is a schematic view of a partial enlarged structure at B of fig. 2 according to the present utility model.

In the figure: 11. a movable mold; 12. a fixed mold; 21. a first cavity; 22. a second cavity; 23. a core post; 24. injection molding holes; 25. a communication hole; 26. a deflector aperture; 27. a diversion trench; 31. a mounting cavity; 32. a heating block; 41. a movable hole; 42. a push rod; 43. a clamping groove; 44. a clamping block; 45. a movable cavity; 46. a top plate; 47. a hydraulic cylinder; 51. an upper connecting seat; 52. a lower connecting seat; 61. a guide sleeve; 62. a guide rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides plastic pipe molding processing equipment as shown in fig. 1-4, which comprises a movable die 11, wherein a fixed die 12 is arranged below the movable die 11, a second die cavity 22 is formed at the bottom end of the movable die 11, a first die cavity 21 is formed at the top end of the fixed die 12, a plurality of groups of ejection mechanisms are arranged in the fixed die 12, a die core assembly is arranged in the first die cavity 21, molten plastic is filled in the first die cavity 21 and the second die cavity 22, and the plastic pipe can be obtained along with cooling of the molten plastic;

the mold core assembly comprises a mold core post 23, the bottom end of the mold core post 23 is fixedly connected with the inner wall of the first cavity 21, an injection molding hole 24 is formed in the top end of the movable mold 11, a communication hole 25 is formed in the top end of the mold core post 23, a plurality of communication holes 25 are formed in the bottom of the inner wall of the communication hole 25 in an annular array, guide grooves 27 are formed in the inner wall of the plurality of communication holes 25, a heating mechanism is arranged at the top of the mold core post 23, molten plastics sequentially flow into the second cavity 22 and the first cavity 21 through the injection molding hole 24, the communication holes 25, a plurality of guide holes 26 and the guide grooves 27, and the molten plastics can uniformly enter the second cavity 22 and the first cavity 21 from a plurality of directions through the arrangement of the guide grooves 27, so that the quality of formed pipes is higher, and meanwhile, due to the narrower arrangement of the guide grooves 27, the connection points between materials cooled in the guide grooves 27 and the inner walls of the pipes are smaller, so that the materials in the guide grooves 27 are conveniently separated from the inner walls of the pipes when the formed pipes are jacked up again;

the heating mechanism comprises a heating block 32, the top of the die core post 23 is provided with a mounting cavity 31, the heating block 32 is mounted on the inner wall of the mounting cavity 31, and the heating block 32 can heat the plastic material in the diversion trench 27 and the diversion trench 26 by working, so that the plastic material formed in the last processing process can be heated to a molten state and flows into the second cavity 22, and the diversion trench 26 and the diversion trench 27 are prevented from blocking the circulation of molten plastic;

the ejection mechanism comprises a plurality of ejector rods 42, a plurality of movable holes 41 are formed in the fixed die 12, the outer walls of the plurality of ejector rods 42 are respectively and movably connected with the inner walls of the plurality of movable holes 41 in a penetrating mode, a plurality of clamping grooves 43 are formed in the bottom end of the inner wall of the first cavity 21, the interiors of the plurality of clamping grooves 43 are respectively communicated with the interiors of the plurality of movable holes 41, clamping blocks 44 are respectively and movably connected with the inner walls of the plurality of clamping grooves 43 in a penetrating mode, the bottom ends of the plurality of clamping blocks 44 are respectively and fixedly connected with the top ends of the plurality of ejector rods 42, the plurality of clamping blocks 44 are driven to jack up through the plurality of ejector rods 42, and therefore the pipe formed by jacking up the clamping blocks 44 can be demoulded;

the inside of the fixed die 12 is provided with a movable cavity 45, the inner wall of the movable cavity 45 is slidably connected with a top plate 46, the top ends of the top plates 46 are fixedly connected with the bottom ends of the plurality of ejector rods 42 respectively, the bottom end of the inner wall of the movable cavity 45 is provided with a hydraulic cylinder 47, the output end of the hydraulic cylinder 47 is in transmission connection with the bottom end of the top plate 46, and the top plate 46 can be driven to lift through the work of the hydraulic cylinder 47, so that the plurality of ejector rods 42 can lift simultaneously;

the top fixedly connected with of movable mould 11 goes up connecting seat 51, the bottom fixedly connected with of cover half 12 goes up connecting seat 52, go up connecting seat 51 and be provided with multiunit guiding mechanism down between the connecting seat 52, guiding mechanism includes uide bushing 61 and guide bar 62, uide bushing 61 fixedly connected in the bottom of last connecting seat 51, guide bar 62 fixedly connected in the top of connecting seat 52 down, the outer wall of guide bar 62 is connected with the inner wall activity interlude of uide bushing 61, mutually spacing direction through guide bar 62 and uide bushing 61, thereby can be stabilized and the laminating of aiming at with cover half 12 when making movable mould 11 descend.

The working principle of the utility model is as follows:

the molten plastic is injected into the injection hole 24 through the external extrusion mechanism, so that the molten plastic flows into the second cavity 22 through the communication hole 25, the plurality of diversion holes 26 and the diversion grooves 27 in sequence until the molten plastic fills the second cavity 22 and the first cavity 21, then the injection of the molten plastic is stopped, the molten plastic is cooled and molded in the second cavity 22 and the first cavity 21, meanwhile, the materials in the diversion holes 26 and the diversion grooves 27 are also cooled and molded, at the moment, the movable mold 11 moves upwards to be separated from the fixed mold 12, then the hydraulic cylinder 47 works to drive the top plate 46 to lift, the top plate 46 lifts to drive the top rod 42 to lift, the clamping blocks 44 slowly lift the cooled and molded pipe, and the plastic material in the diversion grooves 27 and the inner wall of the pipe are broken along with the lifting of the pipe, so that the complete plastic pipe can be obtained.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The plastic pipe molding and processing equipment comprises a movable die (11), wherein a fixed die (12) is arranged below the movable die (11), a second cavity (22) is formed in the bottom end of the movable die (11), a first cavity (21) is formed in the top end of the fixed die (12), and a plurality of groups of ejection mechanisms are arranged in the fixed die (12);

the method is characterized in that: a mold core assembly is arranged in the first cavity (21);

the mold core assembly comprises a mold core post (23), the bottom of the mold core post (23) is fixedly connected with the inner wall of a first cavity (21), an injection molding hole (24) is formed in the top of a movable mold (11), a communication hole (25) is formed in the top of the mold core post (23), a plurality of communication holes (25) are formed in the bottom of the inner wall of the communication hole (25) in an annular array, guide grooves (27) are formed in the inner wall of the communication holes (25), and a heating mechanism is arranged at the top of the mold core post (23).

2. The plastic pipe molding and processing device according to claim 1, wherein the heating mechanism comprises a heating block (32), the top of the die core post (23) is provided with a mounting cavity (31), and the heating block (32) is mounted on the inner wall of the mounting cavity (31).

3. The plastic pipe molding and processing device according to claim 1, wherein the ejection mechanism comprises a plurality of ejector rods (42), a plurality of movable holes (41) are formed in the fixed mold (12), and the outer walls of the ejector rods (42) are respectively movably inserted and connected with the inner walls of the movable holes (41).

4. The plastic pipe molding and processing device according to claim 1, wherein a plurality of clamping grooves (43) are formed in the bottom end of the inner wall of the first cavity (21), the interiors of the clamping grooves (43) are respectively communicated with the interiors of a plurality of movable holes (41), clamping blocks (44) are movably inserted and connected into the inner walls of the clamping grooves (43), and the bottom ends of the clamping blocks (44) are respectively fixedly connected with the top ends of a plurality of ejector rods (42).

5. The plastic pipe molding and processing device according to claim 1, wherein a movable cavity (45) is formed in the fixed mold (12), the inner wall of the movable cavity (45) is slidably connected with a top plate (46), the top ends of the top plate (46) are fixedly connected with the bottom ends of the plurality of ejector rods (42) respectively, a hydraulic cylinder (47) is mounted at the bottom end of the inner wall of the movable cavity (45), and the output end of the hydraulic cylinder (47) is in transmission connection with the bottom end of the top plate (46).

6. The plastic pipe molding and processing device according to claim 1, wherein an upper connecting seat (51) is fixedly connected to the top end of the movable mold (11), a lower connecting seat (52) is fixedly connected to the bottom end of the fixed mold (12), and a plurality of groups of guide mechanisms are arranged between the upper connecting seat (51) and the lower connecting seat (52).

7. The plastic pipe molding and processing device according to claim 6, wherein the guiding mechanism comprises a guiding sleeve (61) and a guiding rod (62), the guiding sleeve (61) is fixedly connected to the bottom end of the upper connecting seat (51), the guiding rod (62) is fixedly connected to the top end of the lower connecting seat (52), and the outer wall of the guiding rod (62) is movably inserted and connected with the inner wall of the guiding sleeve (61).