CN223630874U - A pen insert injection mold - Google Patents

Abstract

This utility model discloses a pen insert injection mold, including a moving mold assembly, a stationary mold assembly, and a middle plate fixed to the moving mold assembly and the stationary mold assembly respectively, as well as a mold opening limiting mechanism. The moving mold assembly is also provided with a six-point flow divider plate, and the six-point flow divider plate is provided with injection flow channels corresponding to six sets of hot nozzles. Each hot nozzle corresponds to a cavity plate located between the moving mold assembly and the stationary mold assembly. Each set of cavity plates is provided with thirty-two mold cavities. The mold of this utility model reduces the production cost of the pen barrel and improves economic efficiency through the design of 6 hot nozzles. The mold opening limiting and the pull rod are all installed on the outside of the mold frame, which facilitates disassembly, assembly and maintenance on one side. The six independent hot nozzles built into the mold are each equipped with a complete injection cavity and flow channel system, ensuring that each pen barrel can receive molten plastic material independently and evenly, ensuring that the molten plastic can be filled evenly and quickly to each injection station, and ensuring the quality consistency of each pen barrel.

Description

Injection mold for pen rear plug

Technical Field

The utility model relates to the technical field of injection molds, in particular to a pen back plug injection mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. The method specifically comprises the steps of injecting a heated and melted material into a mold cavity formed by a movable mold and a static mold under high pressure, cooling the mold through cooling liquid in a cooling runner arranged around the mold cavity in the mold, then conducting the cooled and solidified material onto the material in the mold cavity, and driving the movable mold by equipment to separate the movable mold from the static mold, so that an injection molding product is finally obtained.

The traditional injection mold for the pen rear plug is insufficient in improvement of mass production due to design lag, single-time demolding products are not high, so that along with continuous increase of demands of the market on pen products, production efficiency is improved, production cost is reduced, and the problem to be solved urgently in stationery manufacturing industry is solved.

Disclosure of utility model

In view of the prior art, the utility model aims to provide the pen back plug injection mold which is designed through a 6-point hot nozzle, is provided with the mold opening limit and the pull rod all arranged on the periphery of the mold frame, and aims to improve the production efficiency of the back plug, reduce the production cost and facilitate the disassembly, the overhaul and the maintenance of a single side.

In order to achieve the purpose, the technical scheme includes that the pen back plug injection mold comprises a movable module, a static module, a peripheral pull rod and a mold dividing limiting mechanism, wherein the middle plate is respectively fixed on the movable module and the static module, six-point flow dividing plates are further arranged on the movable module, injection molding flow dividing channels are arranged in the six-point flow dividing plates and correspond to six groups of hot nozzles, each hot nozzle is correspondingly positioned on a cavity plate formed between the movable module and the static module, and thirty-two mold cavities are respectively arranged on each group of cavity plates.

As a further setting of above-mentioned scheme, peripheral pull rod is C type one end and fixes on moving module or quiet module, still be provided with the step groove on the template that moves the module and press close to the medium plate with moving the module, set up the groove on the medium plate.

As a further setting of above-mentioned scheme, divide mould stop gear to include spacing post, limiting plate, spacing post is equipped with limit stop, the limiting plate sets up the stopper.

As a further arrangement of the scheme, the limit stop is provided with two groups of templates and middle plates which are respectively fixed on the static module and close to the middle plate, and the limiting blocks are respectively arranged on the templates and the middle plates which are respectively arranged on the dynamic module and close to the middle plate.

As a further arrangement of the scheme, the parting limiting mechanism is further provided with a square guide post and brass guide blocks arranged on two sides of the square guide post, and the square guide post is further provided with an air shallow groove.

The mold has the beneficial effects that the mold reduces the production cost of the penholder through the 6-point hot nozzle design, improves the economic benefit, fully installs the mold opening limit and the pull rod at the periphery of the mold frame, facilitates the disassembly, assembly, maintenance and repair of a single side, is internally provided with 6 independent hot nozzles, ensures that each penholder can independently and uniformly receive molten plastic materials by virtue of a complete injection molding cavity and a runner system, ensures that molten plastic can be uniformly and rapidly filled into each injection molding station, and ensures the quality consistency of each penholder.

Drawings

Fig. 1 is a schematic diagram of a structure of an injection mold for a rear plug of a pen.

Fig. 2 is a schematic diagram of a six-point splitter plate structure in the movable module according to the present embodiment.

Fig. 3 is a schematic diagram of the cavity structure of the cavity plate in the mold of this embodiment.

Fig. 4 is a schematic view of a hot nozzle structure of a die splitter plate according to the embodiment.

Fig. 5 is a schematic structural diagram of the outer circumferential tie and the module according to the present embodiment.

Fig. 6 is a schematic diagram of a maximum die opening structure of the die according to the embodiment.

The numerical control device comprises a dynamic module, a static module, a middle plate, a peripheral pull rod, a 41 step groove, a 42 through groove, a 5 split die limiting mechanism, a 51, a limiting post, a 52, a limiting plate, a 53, a square guide post, a 54, a limiting stop, a 55, a limiting block, a 56, a brass guide block, a 57, a shallow air groove, a 6, six-point flow dividing plate, a 61, an injection molding flow dividing channel, a 62, a hot nozzle, a 7, a cavity plate, an 8 and a die cavity.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In addition, the embodiments of the present utility model and the features in the embodiments may be combined with each other without collision.

The injection mold for the rear plug of the pen as shown in fig. 1-6 comprises a movable mold set 1, a static mold set 2, a middle plate 3, a peripheral pull rod 4 and a mold dividing limiting mechanism 5, wherein the peripheral pull rod 4 and the mold dividing limiting mechanism 5 are respectively fixed on the movable mold set 1 and the static mold set 2, six-point flow dividing plates 6 are further arranged on the movable mold set 1, injection molding flow dividing channels 61 are arranged in the six-point flow dividing plates 6 and correspond to six groups of hot nozzles 62, each hot nozzle 62 is correspondingly positioned on a cavity plate 7 formed between the movable mold set 1 and the static mold set 2, and thirty-two mold cavities 8 are respectively arranged on each group of cavity plates 7.

As a further arrangement of the scheme, one end of the peripheral pull rod 4 in a C shape is fixed on the movable module 1 or the static module 2, the static module 2 and the movable module 1 are both provided with step grooves 41 on the template 21 close to the middle plate 3, and the middle plate 3 is provided with through grooves 42.

As a further arrangement of the above scheme, the parting stop mechanism 5 includes a stop post 51 and a stop plate 52, the stop post 51 is provided with a stop block 54, and the stop plate 52 is provided with a stop block 55.

As a further arrangement of the above solution, the limit stop 54 is provided with two groups of fixing plates 21 and 3 of the static module 2 adjacent to the middle plate 3, and the limiting blocks 55 are respectively provided on the plates 21 and 3 of the dynamic module 1 adjacent to the middle plate 3.

As a further arrangement of the above scheme, the parting limiting mechanism 5 is further provided with a square guide post 53 and brass guide blocks 56 arranged at two sides of the square guide post 53, and the square guide post 53 is further provided with an air shallow groove 57.

Referring to the injection mold structure of the present utility model shown in fig. 1, 5 and 6, the mold of the present embodiment is configured by arranging the outer sides of the movable mold set 1, the static mold set 2 and the middle plate 3, and mutually matching the peripheral pull rod 4 and the limit post 51, the limit plate 52, the square guide post 53, the limit stop 54 and the limit block 55 of the mold separation limiting mechanism 5, the mold of the present embodiment can perform mold separation and assembly in the state shown in fig. 1 to 6 on the external device, so that the mechanical arm can be conveniently extended into the mold for pulling waste materials and ensuring that multiple groups of finished products can be simultaneously, rapidly and nondestructively separated from the mold, and based on the structure shown in fig. 2, 3 and 4, the injection mold of the present embodiment can produce 192 rear plugs by one injection molding through the six-point splitter 6 and six groups of hot nozzles 62 provided with complete independent injection cavities and runner systems, so that the production efficiency is greatly improved.

Further, the square guide post 53 and the self-lubricating brass guide block 56 are added on the periphery of the die, so that the concentricity of the product is further increased, the pressure of the die parting limiting mechanism 5 is relieved, and the die is more durable.

The cylinder gag lever post in the traditional mould adopts the spacing post pole 51 that sets up in the outside, limiting plate 52 to replace, and relative prior art, this embodiment adopts the structure of peripheral pull rod 4, spacing post pole 51, limiting plate 52 more resistant and convenient dismantlement mould, and the maintenance of being convenient for reduces the mould maintenance time.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, if such modifications and variations of the present utility model fall within the scope of the present utility model and the equivalents thereof, the present utility model is intended to include such modifications and variations as well.

Claims (2)

1. The pen back plug injection mold is characterized by comprising a movable mold set (1), a static mold set (2) and a middle plate (3), wherein peripheral pull rods (4) and mold separation limiting mechanisms (5) are respectively fixed on the movable mold set (1) and the static mold set (2), six-point flow distribution plates (6) are further arranged on the movable mold set (1), injection molding flow distribution channels (61) are arranged in the six-point flow distribution plates (6) and correspond to six groups of hot nozzles (62), each hot nozzle (62) is correspondingly positioned in a cavity plate (7) formed between the movable mold set (1) and the static mold set (2), and thirty-two mold cavities (8) are respectively arranged in each group of cavity plates (7);

The die-dividing limiting mechanism (5) comprises a limiting post rod (51) and a limiting plate (52), wherein the limiting post rod (51) is provided with a limiting stop block (54), and the limiting plate (52) is provided with a limiting block (55);

The limit stop (54) is provided with two groups of templates (21) and middle plates (3) which are respectively fixed on the static module (2) and close to the middle plates (3), and the limit blocks (55) are respectively arranged on the templates (21) and the middle plates (3) of the movable module (1) and close to the middle plates (3);

the die separation limiting mechanism (5) is further provided with a square guide post (53) and brass guide blocks (56) arranged on two sides of the square guide post (53), and the square guide post (53) is further provided with an air shallow groove (57).

2. The pen plunger injection mold according to claim 1, wherein the peripheral pull rod (4) is characterized in that one end of the peripheral pull rod is fixed on the movable module (1) or the static module (2), step grooves (41) are formed in the template (21) of the movable module (2) and the movable module (1) close to the middle plate (3), and grooves (42) are formed in the middle plate (3).