CN221187384U - Integrated lifting ring bottle blank forming die - Google Patents

Abstract

The utility model discloses an integrated lifting ring bottle blank forming die which comprises a fixed die, a movable die, a die opening structure and a die closing sealing structure; the fixed die is provided with a first forming plate and a first forming cavity; the movable mould is provided with a push plate, a cavity plate mechanism, a mould core mechanism and a push block assembly; the cavity plate mechanism comprises two cavity plate assemblies, and the cavity plate assemblies are all provided with forming cavities. The utility model realizes the molding of the product by arranging the cavity plate mechanism with the second molding cavity, the mold core mechanism and the first molding cavity, has simple structure, reduces the cost and the maintenance cost and improves the production efficiency; the connecting tightness and the sealing stability between the cavity plate mechanism and the first molding cavity during mold closing are ensured by arranging the mold closing sealing structure, and the molding quality of products is improved; the cavity plate assemblies, the die opening structures and the first molding cavity with the molding die cores are arranged in a mirror image opposite mode, so that automatic and rapid die closing and opening actions are realized, continuity is improved, demolding efficiency is improved, and production efficiency is improved.

Description

Integrated lifting ring bottle blank forming die

Technical Field

The utility model relates to the technical field of forming dies, in particular to an integrated lifting ring bottle blank forming die.

Background

Plastic bottles and the like are manufactured by using a bottle blowing machine, and in the preparation process, bottle blanks need to be molded firstly and then blown to be molded, and the molding of the bottle blanks mainly depends on a bottle blank mold. The hanging ring bottle embryo is commonly used in infusion bottles, and the bottom of the infusion bottle needs a hanging ring, so that the hanging ring is convenient to hang on a fixed hook when in use.

The lifting ring bottle blank comprises a bottle blank body, a lifting ring and a pouring gate column; the bottle embryo body is an integral structure, one end of the bottle embryo body is of a cylindrical hollow cone structure with an opening, the hanging ring and the closed end of the bottle embryo body are connected through a connecting part, and the pouring gate column is arranged on the hanging ring.

The shaping of current integral type rings bottle embryo adopts forming die to carry out shaping processing, like patent number: CN202120723351.0 discloses a hanging ring integrated bottle blank with a large cooling area of a rubber mouth column and a forming die thereof, and the bottle blank increases the heat dissipation area of the rubber mouth column, accelerates the heat dissipation area of the rubber mouth column, further improves the heat dissipation rate, shortens the whole production cycle, improves the production efficiency by 20%, and avoids generating bubbles and wiredrawing. When the mold has the following problems: 1. the forming die comprises a glue filling die core, a second half block, a forming die, a first half block, a core and a core sleeve, wherein the forming of an integrated lifting ring bottle blank is realized, more parts are formed, the structure is complex, the unstable connection tightness among the parts is easily caused, the products are formed to have impurities such as bulges, burrs and the like, the smoothness of the surfaces of the formed products is influenced, the quality of the products is influenced, and the manufacturing cost and the subsequent maintenance cost are increased; 2. after the product is molded, the existing molding die needs to be opened by a plurality of actions, then the product ejection side can realize the demolding action, the demolding steps are complicated, the continuity is poor, the time is long, the demolding efficiency is affected, and the requirement of the mass production of the existing bottle blanks is not met.

Disclosure of utility model

The utility model provides an integrated lifting ring bottle blank forming die aiming at the defects of the prior art, and aims to solve the technical problems of complex structure, poor sealing performance, complicated demoulding steps, long time and low demoulding efficiency in the prior art.

The technical scheme adopted by the utility model for achieving the purpose is as follows:

The integrated lifting ring bottle blank forming die comprises a fixed die and a movable die, wherein an opening die structure and a die closing sealing structure are arranged between the fixed die and the movable die; the fixed die is provided with a first forming plate, and the first forming plate is provided with a first forming cavity; the movable mould is provided with a push plate, a cavity plate mechanism and a mould core mechanism; the pushing plate is provided with a pushing block assembly and is fixedly connected with a push rod of the injection molding equipment; the cavity plate mechanism comprises two cavity plate assemblies which are arranged in a mirror image opposite mode, and more than one forming cavity is formed in each cavity plate assembly; the mold core mechanism comprises more than one mold core component; the molding cavity and the mold core assembly form a second molding cavity; the fixed die is also provided with a glue injection port, and the glue injection port is communicated with the first molding cavity in a connecting way; the fixed die is further provided with a first cooling structure and a second cooling structure, the first cooling structure is arranged in the die core assembly, and the second cooling structure is arranged in the cavity plate assembly.

The movable mould comprises a fixed plate, and the fixed plate is provided with more than one mounting hole; the mold core assemblies comprise fixing seats and mold cores, and the fixing seats are arranged in the mounting holes; the mold core is provided with a sealing section and a cavity section; the fixing plate is also provided with a through hole, and the through hole is used for inserting the ejector rod of the injection molding equipment.

The push plate is further improved, and is provided with more than one first mounting hole and a first fixing countersunk hole; the pushing block assembly comprises more than one pushing block, the pushing blocks are respectively arranged in the first mounting holes, and the pushing blocks and the mold cores are respectively positioned on the same axis; the pushing block is also provided with a positioning hole, and the mold core is inserted into the cavity plate assembly through the positioning hole when the mold is closed; the first fixed counter bore is used for being fixedly connected with a push rod of the injection molding equipment.

The push plate is further improved, two guide blocks are also arranged, and guide grooves are formed in the guide blocks; the cavity plate assemblies are respectively provided with guide blocks, and the guide blocks are respectively arranged in the guide grooves and can move along the direction of the guide grooves; the shaping cavity comprises a bottle body shaping cavity and a first hanging ring shaping cavity, the bottle body shaping cavity is arranged on the inner side surface of the cavity plate assembly, the hanging ring shaping cavity is arranged on the end surface of the cavity plate assembly, and the bottle body shaping cavity and the hanging ring shaping cavity are arranged on the same axis.

The first forming cavity is provided with more than one forming mould core, and the forming mould cores and the first hanging ring forming cavity are respectively positioned on the same axis; the forming die core is provided with a second lifting ring forming cavity, and the second lifting ring forming cavity is connected with the first lifting ring forming cavity in a matched mode during die assembly, so that the forming die core is used for lifting ring glue injection forming.

The mold closing sealing structure comprises more than two first inclined planes and more than two second inclined planes, wherein the first inclined planes are respectively arranged on the outer side faces of the cavity plate assemblies, the second inclined planes are arranged on the inner side faces of the first molding cavities, and the first inclined planes are connected with the second inclined planes in a matched mode during mold closing.

Further improved, the die opening structure comprises two linkage assemblies; the linkage assemblies comprise guide blocks I and mounting blocks, the guide blocks I are respectively arranged on two outer side surfaces of the first forming plate, and the mounting blocks are respectively arranged on the outer side surfaces of the cavity plate assemblies; the first guide blocks are provided with first guide grooves, the mounting blocks are provided with first guide wheels, and the first guide wheels are respectively arranged in the first guide grooves; the first guide groove comprises a mold closing section and a mold opening section.

The mold opening structure comprises two air cylinders, wherein the air cylinders are provided with driving rods; the push plate is provided with two corner blocks which are oppositely arranged in a mirror image mode, the air cylinders are respectively arranged on the corner blocks, and the driving rods are respectively fixedly connected with the cavity plate assembly.

The mold opening structure comprises two servo motors and two racks, wherein the servo motors are respectively provided with a driving end, and the driving ends are provided with gears; the push plate is provided with two corner blocks I which are arranged in a mirror image opposite mode, and the servo motors are respectively arranged on the corner blocks I; the racks are respectively and fixedly connected with the cavity plate assembly, and the gears are respectively attached to the racks to form a gear linkage structure.

The first cooling structure comprises more than one group of first cooling water channels, the first cooling water channels are provided with a first water inlet, a first water outlet and a water core, and the water core is arranged in the mold core; the second cooling structure comprises two groups of second cooling water channels, and the second cooling water channels are respectively arranged in the cavity plate assembly; the second cooling water channel is provided with a second water inlet and a second water outlet, and is of a circulating structure; the glue injection port is provided with a glue injection channel, the glue injection channel is provided with more than one glue outlet, and the glue outlets are respectively communicated with the second hanging ring forming cavity in a connecting way;

The fixed die and the movable die are also provided with a plurality of guide rods; the push plate and the fixed die are also provided with a plurality of positioning guide holes and a plurality of guide sleeves.

Compared with the prior art, the one or more technical schemes in the integrated lifting ring bottle blank forming die provided by the embodiment of the utility model have at least one of the following technical effects:

1. the utility model realizes the molding of the integral hanging ring bottle blank by arranging the cavity plate mechanism with the second molding cavity, the mold core mechanism and the first molding cavity, has simple structure, reduces the cost and the maintenance cost and improves the production efficiency; the multiple guiding and guiding functions are realized through the mold closing sealing structure with the first inclined surface and the second inclined surface, so that the connection tightness and the sealing stability between the cavity plate mechanism and the first molding cavity during mold closing are ensured, and the molding quality of products is improved;

2. According to the utility model, the cavity plate assemblies, the mold opening structures and the first molding cavity with the molding mold core are arranged in a mirror image opposite mode, so that rapid mold opening and closing actions are realized, the continuity is improved, the demolding efficiency is improved, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of an integral lifting ring blank forming mold in the embodiment;

fig. 2 is a schematic top view of an integrated ring blank forming mold according to the embodiment;

FIG. 3 is a schematic cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged schematic view of A in FIG. 3;

fig. 5 is an exploded view of the forming mold of the integrated ring blank in this embodiment;

FIG. 6 is a schematic view of the mold core assembly of the present embodiment;

FIG. 7 is a schematic view of the structure of the cavity plate of the present embodiment;

fig. 8 is a schematic diagram of the structure of the stationary mold of the present embodiment;

fig. 9 is a schematic diagram of an integral hanging ring bottle blank structure in the present embodiment;

Fig. 10 is a schematic structural diagram of an integrated ring blank forming mold with a second mold opening structure according to the present embodiment;

Fig. 11 is a schematic structural diagram of an integrated ring blank forming mold with a third middle mold opening structure in this embodiment.

Detailed Description

The following description is of the preferred embodiments of the utility model, and is not intended to limit the scope of the utility model.

Referring to fig. 1 to 9, an integrated ring bottle blank forming mold 1 includes a fixed mold 2 and a movable mold 3, wherein an opening mold structure 4 and a closing mold sealing structure 5 are arranged between the fixed mold 2 and the movable mold 3; the fixed die 2 is provided with a first forming plate 6, and the first forming plate 6 is provided with a first forming cavity 7; the movable die 3 is provided with a push plate 8, a cavity plate mechanism 9 and a die core mechanism 10; the push plate 8 is provided with a push block assembly 80, and the push plate 8 is fixedly connected with a push rod of the injection molding equipment; the cavity plate mechanism 9 comprises two cavity plate assemblies 90 which are arranged in a mirror image opposite mode, and more than one forming cavity 900 is formed in each cavity plate assembly 90; the core mechanism 10 includes more than one core assembly 100; the molding cavity 900 and the mold core assembly 100 form a second molding cavity 11; the fixed die 2 is also provided with a glue injection port 21, and the glue injection port 21 is communicated with the first molding cavity 7 in a connecting way; the fixed mold 2 is further provided with a first cooling structure 12 and a second cooling structure 13, the first cooling structure 12 is disposed in the mold core assembly 100, and the second cooling structure 13 is disposed in the cavity plate assembly 90.

The movable die 3 comprises a fixed plate 30, and the fixed plate 30 is provided with more than one mounting hole; the mold core assemblies 100 each comprise a fixed seat 100a and a mold core 100b, wherein the fixed seats 100a are arranged in the mounting holes; the mold core 100b is provided with a sealing section and a cavity section, the sealing section is in a circular truncated cone structure, and the cavity section is used for forming an inner cavity of a product; the fixing plate 30 is further provided with a through hole for insertion of the ejector pin of the injection molding apparatus.

The push plate 8 is provided with more than one mounting hole I and a fixed countersunk hole I; the push block assembly 80 comprises more than one push block 800, the push blocks 800 are respectively arranged in the first mounting holes, and the push blocks 800 are respectively on the same axis with the mold core 100 b; the push block 800 is further provided with a positioning hole 802, the positioning hole 802 is provided with a first circular truncated cone structure, the mold core 100b is inserted into the cavity plate assembly 90 through the positioning hole 802 during mold closing, the positioning hole 802 is used for positioning during insertion of the mold core 100b, alignment of positions is guaranteed, damage to the molding cavity 900 or the mold core 100b due to offset during mold closing is prevented, sealing performance is improved, molding quality of a product is guaranteed, the push block assembly 80 is used for pushing out the product during mold opening, contact area is increased, and damage to the product during product ejection is prevented; the first fixed counter bore is used for being fixedly connected with a push rod of the injection molding equipment.

The push plate 8 is also provided with two guide blocks 81, and the guide blocks 81 are provided with guide grooves 810; the cavity plate assemblies 90 are respectively provided with guide blocks 81, and the guide blocks 81 are respectively arranged in the guide grooves 810 and can move along the direction of the guide grooves 810; the forming cavity 900 comprises a body forming cavity 900a and a first hanging ring forming cavity 900b, the body forming cavity 900a is arranged on the inner side surface of the cavity plate assembly 90, the hanging ring forming cavity 900 is arranged on the end surface of the cavity plate assembly 90, the body forming cavity 900a and the hanging ring forming cavity 900 are on the same axis, and the guide block 81 and the guide groove 810 are used for guaranteeing stability of the cavity plate assembly 90 during movement and guaranteeing stability and speed of mold opening and closing actions.

The first molding cavity 7 is provided with more than one molding core 70, and the molding cores 70 and the first hanging ring molding cavity 900b are respectively positioned on the same axis; the molding die core 70 is provided with a second lifting ring molding cavity 700, and the second lifting ring molding cavity 700 is connected with the first lifting ring molding cavity 900b in a matched manner during die assembly, so that the molding die is used for lifting ring glue injection molding.

The die closing sealing structure 5 comprises more than two first inclined planes 50 and more than two second inclined planes 51, the first inclined planes 50 are respectively arranged on the outer side surfaces of the cavity plate assemblies 90, so that the cavity plate assemblies 90 form a trapezoid structure in cross section, the second inclined planes 51 are arranged on the two inner side surfaces of the first forming cavity 7, the first inclined planes 50 are matched and connected with the second inclined planes 51 in die closing, the die closing sealing structure 5 is used for guiding and sealing, the die closing tightness of the die closing of the two cavity plate assemblies 90 is guaranteed, meanwhile, the die closing tightness of the first forming cavity 7 and the cavity plate assemblies 9 can be guaranteed by adopting the matched and connected of the first inclined planes 50 and the second inclined planes 51, and the forming quality of a lifting ring part is guaranteed.

The die opening structure 4 comprises two linkage assemblies 40; the linkage assemblies 40 each comprise a guide block 400 and a mounting block 401, the guide blocks 400 are respectively arranged on the two outer side surfaces of the first forming plate 6, and the mounting blocks 401 are respectively arranged on the outer side surfaces of the cavity plate assemblies 90; the guide blocks I400 are provided with guide grooves I402, the guide grooves I402 are provided with limiting blocks, and the limiting blocks are used for limiting; the mounting block 401 is provided with guide wheels I403, and the guide wheels I403 are respectively arranged in the guide grooves I402; the first guide groove 402 includes a mold clamping section 402a and a mold opening section 402b, and the first guide wheel 403 moves from the mold clamping section 402a to the mold opening section 402b along the first guide groove 402 when the mold opening structure 4 performs a mold opening operation, and guides the two cavity plate assemblies 90 arranged in opposite mirror images to synchronously separate along the direction of the guide block 81 like two sides, so as to realize mold opening; during the clamping operation, the first guide roller 403 moves along the first guide groove 402 from the mold opening section 402b toward the mold clamping section 402a, thereby realizing the clamping operation of the two cavity plate assemblies 90.

Referring to fig. 10, the mold opening structure 4 includes two cylinders 41, and the cylinders 41 are provided with driving rods; the push plate 8 is provided with two corner blocks which are arranged in a mirror image opposite mode, the air cylinders are respectively arranged on the corner blocks, the driving rods are respectively fixedly connected with the cavity plate assembly 90, and when the cavity plate assembly 90 is opened, the air cylinders 41 act simultaneously to pull the cavity plate assembly 90 to two sides, so that the mold opening action is realized; when the clamping operation is performed, the cylinder 41 is operated to push the cavity plate assemblies 90 toward each other to perform the clamping operation.

Referring to fig. 11, the mold opening structure 4 includes two servo motors 42 and two racks 43, wherein the servo motors 42 are respectively provided with a driving end, and the driving ends are provided with gears 420; the push plate 8 is provided with two corner blocks I which are arranged in a mirror image opposite mode, and the servo motors 42 are respectively arranged on the corner blocks I; the rack 43 is fixedly connected with the cavity plate assembly 90, the gear 420 is respectively attached to the rack 43 to form a gear linkage structure, the servo motor 42 acts to drive the rack 43 to withdraw from movement during mold opening, mold opening is achieved, and the servo motor 42 acts to drive the rack 43 to push in movement during mold closing, and mold closing is achieved.

The first cooling structure 12 comprises more than one group of first cooling water channels, the first cooling water channels are provided with a first water inlet, a first water outlet and a water core, and the water core is arranged in the mold core 100 b; the second cooling structure 13 includes two sets of second cooling water channels, which are respectively disposed in the cavity plate assemblies 90; the second cooling water channel is provided with a second water inlet and a second water outlet, the second cooling water channel is of a circulating structure, and the first cooling structure 12 and the second cooling structure 13 are used for cooling and forming by injecting cooling liquid.

The glue injection port 21 is provided with a glue injection channel, the glue injection channel is provided with more than one glue outlet, the glue outlets are respectively connected and communicated with the second hanging ring forming cavity 700, the glue injection port 21 is used for being connected with a glue injection gun port, and the glue outlet is used for injecting sol into the cavity plate mechanism 9.

The fixed die 2 and the movable die 3 are also provided with a plurality of guide rods; the push plate 8 and the fixed die 2 are also provided with a plurality of positioning guide holes and a plurality of guide sleeves, and the guide rods are used for guiding to ensure the stability of the fixed die 2, the movable die 3 and the push plate 8 during the die closing and opening actions.

The utility model realizes the molding of the integral hanging ring bottle blank by arranging the cavity plate mechanism with the second molding cavity, the mold core mechanism and the first molding cavity, has simple structure, reduces the cost and the maintenance cost and improves the production efficiency; the multiple guiding and guiding functions are realized through the mold closing sealing structure with the first inclined surface and the second inclined surface, so that the connection tightness and the sealing stability between the cavity plate mechanism and the first molding cavity during mold closing are ensured, and the molding quality of products is improved; according to the utility model, the cavity plate assemblies, the mold opening structures and the first molding cavity with the molding mold core are arranged in a mirror image opposite mode, so that the rapid mold closing and opening actions are realized, the continuity is improved, the demolding efficiency is improved, and the production efficiency is improved.

The utility model is not limited to the above embodiments, and other forming molds for the integral hanging ring bottle blank, which are obtained by adopting the same or similar structures or devices as the above embodiments of the utility model, are all within the protection scope of the utility model.

Claims (10)

1. An integral type rings bottle embryo forming die, its characterized in that: the integrated lifting ring bottle blank forming die comprises a fixed die and a movable die, and a die opening structure and a die closing sealing structure are arranged between the fixed die and the movable die; the fixed die is provided with a first forming plate, and the first forming plate is provided with a first forming cavity; the movable mould is provided with a push plate, a cavity plate mechanism and a mould core mechanism; the pushing plate is provided with a pushing block assembly and is fixedly connected with a push rod of the injection molding equipment; the cavity plate mechanism comprises two cavity plate assemblies which are arranged in a mirror image opposite mode, and more than one forming cavity is formed in each cavity plate assembly; the mold core mechanism comprises more than one mold core component; the molding cavity and the mold core assembly form a second molding cavity; the fixed die is also provided with a glue injection port, and the glue injection port is communicated with the first molding cavity in a connecting way; the fixed die is further provided with a first cooling structure and a second cooling structure, the first cooling structure is arranged in the die core assembly, and the second cooling structure is arranged in the cavity plate assembly.

2. The integrated lifting ring bottle preform forming die according to claim 1, wherein: the movable die comprises a fixed plate, and the fixed plate is provided with more than one mounting hole; the mold core assemblies comprise fixing seats and mold cores, and the fixing seats are arranged in the mounting holes; the mold core is provided with a sealing section and a cavity section; the fixing plate is also provided with a through hole, and the through hole is used for inserting the ejector rod of the injection molding equipment.

3. The integrated lifting ring bottle preform forming die according to claim 2, wherein: the push plate is provided with more than one first mounting hole and a first fixing countersunk hole; the pushing block assembly comprises more than one pushing block, the pushing blocks are respectively arranged in the first mounting holes, and the pushing blocks and the mold cores are respectively positioned on the same axis; the pushing block is also provided with a positioning hole, and the mold core is inserted into the cavity plate assembly through the positioning hole when the mold is closed; the first fixed counter bore is used for being fixedly connected with a push rod of the injection molding equipment.

4. The integrated eye-bottle preform molding die of claim 3, wherein: the push plate is also provided with two guide blocks, and the guide blocks are provided with guide grooves; the cavity plate assemblies are respectively provided with guide blocks, and the guide blocks are respectively arranged in the guide grooves and can move along the direction of the guide grooves; the shaping cavity comprises a bottle body shaping cavity and a first hanging ring shaping cavity, the bottle body shaping cavity is arranged on the inner side surface of the cavity plate assembly, the hanging ring shaping cavity is arranged on the end surface of the cavity plate assembly, and the bottle body shaping cavity and the hanging ring shaping cavity are arranged on the same axis.

5. The integrated lifting ring bottle preform forming die according to claim 4, wherein: the first forming cavity is provided with more than one forming mould core, and the forming mould cores and the first hanging ring forming cavity are respectively positioned on the same axis; the forming die core is provided with a second lifting ring forming cavity, and the second lifting ring forming cavity is connected with the first lifting ring forming cavity in a matched mode during die assembly, so that the forming die core is used for lifting ring glue injection forming.

6. The integrated lifting ring bottle preform forming die of claim 5, wherein: the die assembly sealing structure comprises more than two first inclined planes and more than two second inclined planes, wherein the first inclined planes are respectively arranged on the outer side faces of the cavity plate assemblies, the second inclined planes are arranged on the inner side faces of the first molding cavities, and the first inclined planes are connected with the second inclined planes in a matched mode during die assembly.

7. The integrated lifting ring bottle preform forming die of claim 6, wherein: the die opening structure comprises two linkage components; the linkage assemblies comprise guide blocks I and mounting blocks, the guide blocks I are respectively arranged on two outer side surfaces of the first forming plate, and the mounting blocks are respectively arranged on the outer side surfaces of the cavity plate assemblies; the first guide blocks are provided with first guide grooves, the mounting blocks are provided with first guide wheels, and the first guide wheels are respectively arranged in the first guide grooves; the first guide groove comprises a mold closing section and a mold opening section.

8. The integrated lifting ring bottle preform forming die of claim 6, wherein: the die opening structure comprises two air cylinders, and driving rods are arranged on the air cylinders; the push plate is provided with two corner blocks which are oppositely arranged in a mirror image mode, the air cylinders are respectively arranged on the corner blocks, and the driving rods are respectively fixedly connected with the cavity plate assembly.

9. The integrated lifting ring bottle preform forming die of claim 6, wherein: the die opening structure comprises two servo motors and two racks, wherein the servo motors are respectively provided with a driving end, and the driving ends are provided with gears; the push plate is provided with two corner blocks I which are arranged in a mirror image opposite mode, and the servo motors are respectively arranged on the corner blocks I; the racks are respectively and fixedly connected with the cavity plate assembly, and the gears are respectively attached to the racks to form a gear linkage structure.

10. The integrated lifting ring bottle preform forming die according to any one of claims 6-8, wherein: the first cooling structure comprises more than one group of first cooling water channels, the first cooling water channels are provided with a first water inlet, a first water outlet and a water core, and the water core is arranged in the mold core; the second cooling structure comprises two groups of second cooling water channels, and the second cooling water channels are respectively arranged in the cavity plate assembly; the second cooling water channel is provided with a second water inlet and a second water outlet, and is of a circulating structure; the glue injection port is provided with a glue injection channel, the glue injection channel is provided with more than one glue outlet, and the glue outlets are respectively communicated with the second hanging ring forming cavity in a connecting way;

The fixed die and the movable die are also provided with a plurality of guide rods; the push plate and the fixed die are also provided with a plurality of positioning guide holes and a plurality of guide sleeves.