CN217258051U

CN217258051U - Can promote hot structure of chewing of injection molding processing quality

Info

Publication number: CN217258051U
Application number: CN202123277742.3U
Authority: CN
Inventors: 李海龙
Original assignee: Moshuo Industry Dongguan Co ltd
Current assignee: Moshuo Industry Dongguan Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-08-23
Anticipated expiration: 2031-12-22

Abstract

The utility model belongs to the technical field of hot runner mold, especially, be a structure is chewed to heat that can promote injection molding processing quality, which comprises an outer shell, a protection section of thick bamboo in the fixedly connected with on the inner wall of shell body, install the needle on the inboard positioning seat of an interior protection section of thick bamboo, and the lower extreme of needle is provided with the syringe needle, the bottom fixedly connected with water jacket of shell body to the water jacket holds the intracavity and is adapted to be equipped with the pressure cap, the core adaptation is chewed in the inboard of pressure cap to needle bottom fixed connection. The utility model discloses an optimize needle and water jacket structure, needle and water jacketed glue sealing accessory position adopt straight body contact to seal the glue, can effectively seal the glue like this, can transmit the temperature of needle front end to the water jacket again on, the needle sets up the clearance with the cooperation position of chewing the core is unilateral in addition, reaches the purpose that reduces the needle temperature, has the viscose phenomenon between product and the needle when having solved current stage and having moulded plastics, the bad problem of product appearance that leads to.

Description

Can promote hot structure of chewing of injection molding processing quality

Technical Field

The utility model relates to a hot runner mold technical field specifically is a structure is chewed to heat that can promote injection molding processing quality.

Background

With the development of injection molding technology, hot runner technology is more and more widely used in injection molds, while a hot nozzle is the most important component in a hot runner system, and a hot runner hot nozzle is an end component of the hot runner system and mainly conveys plastic melt conveyed by a splitter plate to a mold cavity so as to be injection molded into a product.

1. Firstly, in the injection molding production process, the gate position of a plastic product has the phenomenon of valve needle sticking, the valve needle temperature is high during injection molding production, and the physical characteristics of a plastic material scald the gate position of the product and have the phenomenon of sticking, thus leading to poor appearance of the product.

2. Secondly, the hot nozzle at the present stage is inconvenient to disassemble and assemble, and the disassembly and the assembly between the shell and the inner cylinder are inconvenient, so that the subsequent maintenance is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a can promote hot structure of chewing of injection molding processing quality, through optimizing needle and water jacket structure, the needle adopts straight body contact to seal the glue with water jacketed glue accessory position, can effectively seal the glue like this, can transmit the temperature of needle front end to the water jacket again, reaches the purpose that reduces the needle temperature, has the viscose phenomenon between product and the needle when having solved current stage and having moulded plastics, the bad problem of product appearance that leads to.

(II) technical scheme

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a can promote hot structure of chewing of injection molding processing quality, includes the shell body, a protection section of thick bamboo in the fixedly connected with on the inner wall of shell body, install the needle on the inboard positioning seat of an interior protection section of thick bamboo, and the lower extreme of needle is provided with the syringe needle, the bottom fixedly connected with water jacket of shell body to the water jacket holds intracavity adaptation to be furnished with and presses the cap, the needle bottom fixed connection chew the core adaptation in the inboard of pressing the cap.

Furthermore, a limiting groove for accommodating the needle head is formed in the position, corresponding to the needle head, of the bottom of the water jacket, and the needle head protrudes to the outer side of the limiting groove.

Furthermore, the needle head adopts straight body contact type sealing glue, and the length of the part of the needle head protruding out of the limiting groove is designed to be 1.2 mm.

Furthermore, a clearance space is arranged at the matching position of the bottom of the valve needle and the nozzle core, and the width of the clearance space is 0.1 mm.

Furthermore, a heat insulation sleeve is arranged between the inner side of the containing cavity of the water jacket and the nozzle core, and a through cavity for the needle to penetrate is formed in the bottom of the heat insulation sleeve.

Further, the connecting piece that the shell body set up through top and bottom is fixed to an internal protection section of thick bamboo, the connecting piece includes the arc curb plate to and equidistance fixed connection is at the locating plate on the arc curb plate, and the locating plate is pegged graft and is corresponded the locating hole department of reserving at shell body and an internal protection section of thick bamboo, the spacing downthehole interlude that the locating plate was seted up has the connecting rod, and the top cap threaded connection that the connecting rod upper end set up is at the top of shell body.

(III) advantageous effects

Compared with the prior art, the utility model provides a can promote injection molding processing quality's heat and chew structure possesses following beneficial effect:

1. the utility model discloses, reduce the defective rate of product through the mode that improves hot runner technology and structure, glue the needle and adopt straight body contact to seal the glue accessory position with water jacket, the contact height design is 1.2mm, can effectively seal the glue like this, can transmit the temperature of needle front end to the water jacket again, reach the purpose that reduces the needle temperature, the needle leaves 0.1 mm's clearance space with the cooperation position of chewing the core is unilateral in addition, reduces the heat transfer of chewing the core to the needle.

2. The utility model discloses, the mode through the connecting piece carries out the equipment between shell body and the interior protection section of thick bamboo, and the connecting piece dismouting is simple and convenient, guarantees the stability between shell body and the interior protection section of thick bamboo on the one hand, but on the other hand quick assembly disassembly, and then makes things convenient for the heat to chew the maintenance of inner structure, excellent in use effect.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic assembled view of the present invention;

FIG. 3 is a schematic view of the structure of the middle heat insulating jacket of the present invention;

fig. 4 is a schematic structural view of the middle connection member of the present invention.

In the figure: 1. an outer housing; 2. a valve needle; 3. a nozzle core; 4. a water jacket; 5. a limiting groove; 6. an inner protective sleeve; 7. a connecting member; 701. an arc-shaped side plate; 702. positioning a plate; 703. a connecting rod; 704. a top cap; 8. positioning seats; 9. a needle head; 10. pressing the cap; 11. a heat insulating sleeve; 12. the cavity is communicated.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The utility model provides a can promote hot structure of chewing of injection molding processing quality who provides of embodiment, including shell body 1, fixedly connected with inner protection section of thick bamboo 6 on the inner wall of shell body 1, be removable installation between shell body 1 and the inner protection section of thick bamboo 6, make things convenient for the equipment and maintenance of needle 2, install needle 2 on the positioning seat 8 of inner protection section of thick bamboo 6 inboard, inner protection section of thick bamboo 6 fixes needle 2 through its inboard positioning seat 8, realize the location of needle 2, can dismantle inner protection section of thick bamboo 6 when necessary, realize the maintenance of needle 2, and the lower extreme of needle 2 is provided with syringe needle 9, syringe needle 9 is used for the glue dripping of colloid to handle, the bottom fixedly connected with water jacket 4 of shell body 1, water jacket 4 is used for the cooling of syringe needle 2 bottom syringe needle 9, avoid needle 2 bottom high temperature to produce and glue needle 2 phenomenon, form the quick cooling of syringe needle 9 part and handle, and the pressure cap 10 is adapted in the containing cavity of the water jacket 4, the nozzle core 3 fixedly connected with the bottom of the valve needle 2 is adapted on the inner side of the pressure cap 10, the nozzle core 3 is fixedly connected with the bottom of the valve needle 2 in actual use, the nozzle core 3 is adapted on the pressure cap 10, and the pressure cap 10 is assembled in the containing cavity of the water jacket 4 to form the bottom protection effect of the valve needle 2 and enhance the stability of the valve needle 2 in use.

Further, in some embodiments, the bottom of the water jacket 4 is provided with a limit groove 5 corresponding to the needle head 9 for accommodating the needle head 9, the needle head 9 protrudes to the outer side of the limit groove 5, the needle head 9 is inserted into the limit groove 5 and extends to the outer side of the limit groove 5, normal glue dripping can be performed on the one hand, the needle head 9 can be cooled in the water jacket 4 mode, the temperature of the valve needle 2 is prevented from being high, and the needle sticking phenomenon is further prevented.

Further, in some embodiments, the needle head 9 is made of straight-body contact type glue, and the length of the part of the needle head 9 protruding out of the limiting groove 5 is designed to be 1.2mm, so that the glue can be effectively sealed, and the temperature of the bottom of the valve needle 2 and the temperature of the needle head 9 can be transmitted to the water jacket 4, thereby achieving the purpose of reducing the temperature of the valve needle 2.

Further, in some embodiments, a clearance space is provided at the bottom of the valve needle 2 and the matching position of the nozzle core 3, and the width of the clearance space is 0.1mm, which can reduce the heat transfer of the nozzle core 3 to the valve needle 2, ensure the normal temperature of the valve needle 2, and further avoid the needle sticking phenomenon.

Further, in some embodiments, a heat insulating sleeve 11 is arranged between the inner side of the containing cavity of the water jacket 4 and the nozzle core 3, a through cavity 12 for the needle 9 to penetrate through is formed in the bottom of the heat insulating sleeve 11, the influence of temperature is reduced by arranging the heat insulating sleeve 11, and the needle 9 extends to the limiting groove 5 through the through cavity 12, so that the needle 9 is assembled.

In this embodiment: during assembly, the inner protection cylinder 6 is matched in the outer shell 1, the nozzle core 3 at the bottom of the valve needle 2 is matched in the press cap 10, the press cap 10 is matched in a containing cavity on the inner side of the water jacket 4, the heat insulation sleeve 11 is arranged at the joint of the bottom of the inner side of the water jacket 4 and the nozzle core 3, the valve needle 2 is matched on the outer shell 1, the water jacket 4 and the press cap 10, then the inner protection cylinder 6 is fixed on the outer shell 1 in a connecting piece 7 mode, the needle 9 protrudes to the outer side of the limiting groove 5 after the assembly, the length of the part, protruding out of the limiting groove 5, of the needle 9 is designed to be 1.2mm, therefore, glue can be effectively sealed, the temperatures of the bottom of the valve needle 2 and the needle 9 can be transmitted to the water jacket 4, meanwhile, a clearance space is arranged at the matching position of the bottom of the valve needle 2 and the nozzle core 3, the width of the clearance space is 0.1mm, and the mode can reduce the heat transmission of the nozzle core 3 to the valve needle 2, can form the guard action of 2 bottoms of needle and syringe needle 9, can enough carry out normally to seal the glue, can transmit the temperature to water jacket 4 again, and then avoid producing the viscose phenomenon, guarantee the processing quality of injection molding.

Example 2

The shell body 1 is fixed to an internal protection section of thick bamboo 6 through connecting piece 7 that top and bottom set up, when carrying out the equipment between shell body 1 and the internal protection section of thick bamboo 6, carry out the connection between the structure through the mode of connecting piece 7, connecting piece 7 includes arc curb plate 701, and locating plate 702 of equidistance fixed connection on arc curb plate 701, and locating plate 702 pegs graft and corresponds the locating hole department of reserving at shell body 1 and internal protection section of thick bamboo 6, realize the concatenation of locating plate 702 between shell body 1 and internal protection section of thick bamboo 6, with this location of internal protection section of thick bamboo 6 on shell body 1 of realization, the spacing downthehole interlude that locating plate 702 seted up has simultaneously connecting rod 703, and the hood 704 threaded connection that connecting rod 703 upper end set up is at the top of shell body 1, realize the fixed of locating plate 702.

In the embodiment, when in use, the arc-shaped side plate 701 is adapted to the outside of the outer shell 1, the positioning plate 702 is correspondingly inserted into the positioning holes formed in the outer shell 1 and the inner protective cylinder 6, then the connecting rod 703 is inserted into the limiting holes formed in the outer shell 1 and the positioning plate 702 to fix the positioning plate 702 on the outer shell 1 and the inner protective cylinder 6, so as to realize the assembly between the structures, then the top cap 704 is in threaded connection with the top of the outer shell 1, the outer shell 1 and the inner protective cylinder 6 are assembled in the manner of the positioning plate 702, so as to ensure the stability between the structures, meanwhile, the positioning plate 702 is fixed in the manner of the connecting rod 703, so that the connection is simple and convenient, only the bottom of the top cap 704 needs to be in threaded connection with the outer shell 1, relatively speaking, the connection structure is greatly reduced compared with the traditional connection manner, and the disassembly and assembly are convenient, only one-time of threaded connection is needed, a plurality of positioning plates 702 can be fixed, thereby facilitating the maintenance of the internal components of the hot nozzle.

Finally, it should be noted that: although the present invention 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 above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a can promote hot structure of chewing of injection molding processing quality, includes shell body (1), a fixedly connected with internal protection section of thick bamboo (6), its characterized in that on the inner wall of shell body (1): install needle (2) on positioning seat (8) of interior protective barrel (6) inboard, and the lower extreme of needle (2) is provided with syringe needle (9), the bottom fixedly connected with water jacket (4) of shell body (1) to the appearance intracavity of water jacket (4) is adapted with pressure cap (10), the inboard of pressing cap (10) is being pressed in the core (3) adaptation of chewing of needle (2) bottom fixed connection.

2. The hot nozzle structure capable of improving the processing quality of injection molding parts according to claim 1, wherein: the bottom of the water jacket (4) is provided with a limiting groove (5) corresponding to the needle (9) for accommodating the needle (9), and the needle (9) protrudes out of the limiting groove (5).

3. The hot nozzle structure capable of improving the processing quality of injection molding parts according to claim 2, wherein: the needle head (9) adopts a straight body contact type sealing adhesive, and the length of the part of the needle head (9) protruding out of the limiting groove (5) is designed to be 1.2 mm.

4. The hot nozzle structure capable of improving the processing quality of injection molding parts according to claim 1, wherein: a clearance space is arranged at the matching position of the bottom of the valve needle (2) and the nozzle core (3), and the width of the clearance space is 0.1 mm.

5. The hot nozzle structure capable of improving the processing quality of injection molding parts according to claim 1, wherein: a heat insulation sleeve (11) is arranged between the inner side of the containing cavity of the water jacket (4) and the nozzle core (3), and a through cavity (12) for the needle head (9) to penetrate is formed in the bottom of the heat insulation sleeve (11).

6. The hot nozzle structure capable of improving the processing quality of injection molding parts according to claim 1, wherein: connecting piece (7) that shell body (1) set up through top and bottom are fixed protecting section of thick bamboo (6) internally, connecting piece (7) are including arc curb plate (701) to and locating plate (702) of equidistance fixed connection on arc curb plate (701), and locating plate (702) peg graft and correspond the locating hole department of reserving at shell body (1) and interior protecting section of thick bamboo (6), spacing downthehole interlude that locating plate (702) were seted up has connecting rod (703), and top cap (704) threaded connection that connecting rod (703) upper end set up is at the top of shell body (1).