阅读说明：本技术 一种用于玻璃器皿压机的三开模装置 (Three-die opening device for glassware press ) 是由 陆新超 张钦 周杰 孙杨 朱学良 于 2021-11-11 设计创作，主要内容包括：一种用于玻璃器皿压机的三开模装置,包括转盘和位于转盘上的若干三开模组件,转盘中部设有与转盘同步转动的中心柱；其特征在于,所述转盘中部设有开模盘,若干三开模组件圆周设置于开模盘上,且转盘上形成有与三开模组件相适配的工位；与现有技术相比,通过中半模两侧的连接块上下两端同时与左半模和右半模相接触,从而在左半模和右半模的转动过程中,确保左半模和右半模的稳定性,同时在导向杆和导向槽的作用下,确保推拉组件在移动过程中的稳定性,使得左半模和右半模始终处于同步状态,实现整体结构的稳定运行,玻璃器皿在开模过程中具有更好的稳定性和可靠性。(A three-die-sinking device for a glassware press comprises a rotary table and a plurality of three-die-sinking assemblies positioned on the rotary table, wherein the middle part of the rotary table is provided with a central column which synchronously rotates with the rotary table; the mold opening device is characterized in that a mold opening disc is arranged in the middle of the rotary disc, a plurality of three mold opening assemblies are circumferentially arranged on the mold opening disc, and stations matched with the three mold opening assemblies are formed on the rotary disc; compared with the prior art, the upper end and the lower end of the connecting block on the two sides of the middle half die are simultaneously contacted with the left half die and the right half die, so that the stability of the left half die and the right half die is ensured in the rotating process of the left half die and the right half die, and the stability of the push-pull assembly in the moving process is ensured under the action of the guide rod and the guide groove, so that the left half die and the right half die are always in a synchronous state, the stable operation of the whole structure is realized, and glassware has better stability and reliability in the die opening process.)

1. A three-die-sinking device for a glassware press comprises a turntable (1) and a plurality of three-die-sinking assemblies (4) positioned on the turntable (1), wherein a central column (2) is arranged in the middle of the turntable (1); the device is characterized in that a die opening disc (3) is arranged in the middle of the rotary disc (1), a plurality of three-die-opening components (4) are circumferentially arranged on the die opening disc (3), and stations (1-1) matched with the three-die-opening components (4) are formed on the rotary disc (1); the three-opening die assembly (4) comprises a push-pull piece (5), a left half die (6), a middle half die (7) and a right half die (8) which are connected, the left half die (6), the middle half die (7) and the right half die (8) are sequentially connected into a ring, and the push-pull piece (5) is respectively connected with the left half die (6) and the right half die (8); the left half die (6) is rotationally connected with the middle half die (7), and the right half die (8) is rotationally connected with the middle half die (7); connecting blocks (7-1) are formed on two sides of the middle of the outer wall of the middle half die (7), a left connecting piece (6-1) is formed on the outer wall of the left half die (6), the left connecting piece (6-1) is connected with the top of the connecting block (7-1), a left extending block (6-2) is formed at the bottom of the outer wall of the left half die (6), the left extending block (6-2) abuts against the bottom of the connecting block (7-1), and the left extending block (6-2) is connected with the push-pull piece (5); the right half die (8) is provided with a right connecting piece (8-1) on the outer wall, the right connecting piece (8-1) is connected with the top of the connecting block (7-1), the bottom of the outer wall of the right half die (8) is provided with a right extending block (8-2), the right extending block (8-2) is abutted to the bottom of the connecting block (7-1), and the right extending block (8-2) is connected with the push-pull piece (5).

2. The three-opening mold device for the glassware press according to claim 1, wherein the three-opening mold assembly (4) further includes a bottom plate (9), the bottom plate (9) is fixedly connected to a station (1-1) of the rotary table (1), a mold core (10) is disposed in the middle of the bottom plate (9), the left mold half (6), the middle mold half (7) and the right mold half (8) are disposed on the bottom plate (9), and the left mold half (6), the middle mold half (7) and the right mold half (8) are disposed around the mold core (10).

3. The three-die opening device for the glassware press according to claim 2, characterized in that the bottom plate (9) is formed with a left guide groove (9-1) adapted to the left half die (6) and a right guide groove (9-2) adapted to the right half die (8), the bottom of the left half die (6) is provided with a left guide member (15) located in the left guide groove (9-1), the bottom of the right half die (8) is provided with a right guide member (16) located in the right guide groove (9-2), and the left guide groove (9-1) and the right guide groove (9-2) are of a bent structure arranged oppositely.

4. Three-opening device for glassware presses, according to claim 1, where a left hinge axis (11) is provided between the left connecting piece (6-1) and the connecting piece (7-1), and similarly a right hinge axis (12) is provided between the right connecting piece (8-1) and the connecting piece (7-1).

5. The three-die-sinking device for the glassware press according to claim 1, wherein the left extending block (6-2) is formed with a left groove (6-3), the right extending block (8-2) is formed with a right groove (8-3), the end of the push-pull member (5) is embedded in the left groove (6-3) and the right groove (8-3), and the left groove (6-3) and the right groove (8-3) are both provided with a pin (14) connected with the push-pull member (5).

6. The three-die-sinking device for the glassware press according to claim 5, wherein the push-pull member (5) includes a cylinder (5-1), a cylinder mounting plate (5-2), a cylinder push plate (5-3) and a guide rod (5-4), the cylinder mounting plate (5-2) is fixedly connected to the die-sinking plate (3), the cylinder (5-1) is fixedly connected to the cylinder mounting plate (5-2), the cylinder push plate (5-3) is connected to a cylinder rod of the cylinder (5-1), the guide rod (5-4) is connected to the cylinder push plate (5-3), and the guide rod (5-4) is arranged through the cylinder mounting plate (5-2), and the guide rod (5-4) is arranged in parallel with the cylinder rod.

7. The three-die-sinking device for the glassware press according to claim 6, wherein the push-pull member (5) further comprises a push-pull assembly (5-6) and a pull rod (5-5), the push-pull assembly (5-6) is fixedly connected with the cylinder push plate (5-3), the pull rod (5-5) is oppositely arranged at two ends of the push-pull assembly (5-6), and the ends of the pull rod (5-5) arranged at two ends of the push-pull assembly (5-6) are respectively positioned in the left groove (6-3) and the right groove (8-3).

8. The three-die-sinking apparatus for glassware press according to claim 7, in which the push-pull assembly (5-6) includes a guide rod (5-7) and a push-pull seat (5-8) connected with each other, the push-pull seat (5-8) is fixedly connected to an end of the guide rod (5-7), a guide groove adapted to the guide rod (5-7) is formed on the die-sinking disc (3), and the guide rod (5-7) is embedded in the guide groove.

9. The three-die-sinking apparatus for glassware press according to claim 8, in which the die-sinking disc (3) includes a lower disc (3-2) and an upper disc (3-1) connected to each other, the guide groove is formed in the lower disc (3-2), the guide rod (5-7) is formed with a needle bearing (5-9), and the upper disc (3-1) is formed with a circular groove (3-3) adapted to the needle bearing (5-9).

10. Three mould opening device for glassware press according to claim 9, characterized in that the upper disc (3-1) and the lower disc (3-2) are rotatably connected, and the upper disc (3-1) is fixedly connected to the central column (2), and the lower disc (3-2) is provided with a driving unit.

Technical Field

The invention belongs to the technical field of glassware molds, and particularly relates to a three-mold opening device for a glassware press.

Background

The glassware is glittering and translucent, beautiful and practical, is deeply loved by people and is an indispensable utensil in life. In recent years, with the improvement of living standard of people, glassware selected by people is changed from a practical type with simple appearance to an aesthetic type with complex pattern appearance. At present, the domestic glassware press mainly adopts two mold-opening holding clamps to press glassware, the two mold-opening holding clamps can only be used for pressing glassware with simple shapes such as round or square, and for glassware with complex shape and pattern, the two mold-opening holding clamps damage the outer body of the glassware when opening the mold because of the limitation of the mold-opening direction.

Chinese patent No. CN101066832A discloses a hinge type three-mold-opening mechanism in a glassware press, which mainly comprises three parts of a roller assembly, a mold-opening and closing cylinder assembly and a connecting rod mold sleeve assembly, and is formed by connecting a right upper cover, a left upper cover, a mold bottom, a mold sleeve mold disc, a mold-opening groove disc support, a small outer cam block, a large disc, a mold-opening groove disc and a cam.

The left valve mold and the right valve mold in the three-mold opening mechanism are driven by the air cylinder, so that the mold opening or closing among the left valve mold, the right valve mold and the middle valve mold is realized, certain vibration can be generated in the rotating process of the left valve mold and the right valve mold, and when the left valve mold and the right valve mold are in the mold closing state, certain deviation is easily generated, so that the finished product precision of glassware is influenced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides the three-die opening device for the glassware press, which has the advantages of simple structure, stable die closing and high processing efficiency.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a three-die-sinking device for a glassware press comprises a rotary table and a plurality of three-die-sinking assemblies positioned on the rotary table, wherein the middle part of the rotary table is provided with a central column; the middle part of the rotary table is provided with a die opening disc, a plurality of three die opening assemblies are circumferentially arranged on the die opening disc, and stations matched with the three die opening assemblies are formed on the rotary table; the three-die-sinking assembly comprises a push-pull piece, a left half die, a middle half die and a right half die which are connected with each other, the left half die, the middle half die and the right half die are sequentially connected into a ring, and the push-pull piece is respectively connected with the left half die and the right half die; the left half die is rotationally connected with the middle half die, and the right half die is rotationally connected with the middle half die; connecting blocks are formed on two sides of the middle part of the outer wall of the middle half die, a left connecting piece is formed on the outer wall of the left half die and connected with the top of the connecting blocks, a left extending block is formed at the bottom of the outer wall of the left half die and abutted against the bottom of the connecting blocks, and the left extending block is connected with the push-pull piece; and a right connecting piece is formed on the outer wall of the right half die, the right connecting piece is connected with the top of the connecting block, a right extending block is formed at the bottom of the outer wall of the right half die, the right extending block abuts against the bottom of the connecting block, and the right extending block is connected with the push-pull piece.

As a preferred scheme of the invention, the three-mold opening assembly further comprises a bottom plate, the bottom plate is fixedly connected to a station of the turntable, a mold core is arranged in the middle of the bottom plate, the left half mold, the middle half mold and the right half mold are positioned on the bottom plate, and the left half mold, the middle half mold and the right half mold are arranged around the mold core.

As a preferred scheme of the present invention, a left guide groove adapted to the left half mold and a right guide groove adapted to the right half mold are formed on the bottom plate, a left guide member located in the left guide groove is disposed at the bottom of the left half mold, a right guide member located in the right guide groove is disposed at the bottom of the right half mold, and the left guide groove and the right guide groove are bending structures disposed oppositely.

As a preferred scheme of the invention, a left hinge shaft is arranged between the left connecting piece and the connecting block, and a right hinge shaft is arranged between the right connecting piece and the connecting block in the same way.

As a preferable scheme of the present invention, a left groove is formed on the left extension block, a right groove is formed on the right extension block, an end of the push-pull member is embedded in the left groove and the right groove, and pins connected to the push-pull member are disposed on both the left groove and the right groove.

As a preferable scheme of the invention, the push-pull piece comprises an air cylinder, an air cylinder mounting plate, an air cylinder push plate and a guide rod, wherein the air cylinder mounting plate is fixedly connected to the die opening plate, the air cylinder is fixedly connected to the air cylinder mounting plate, the air cylinder push plate is connected with an air cylinder rod of the air cylinder, the guide rod is connected to the air cylinder push plate and penetrates through the air cylinder mounting plate, and the guide rod and the air cylinder rod are arranged in parallel.

As a preferred scheme of the present invention, the push-pull member further includes a push-pull assembly and a pull rod, the push-pull assembly is fixedly connected to the cylinder push plate, the pull rods are oppositely disposed at two ends of the push-pull assembly, and ends of the pull rods disposed at two ends of the push-pull assembly are respectively located in the left groove and the right groove.

As a preferable scheme of the invention, the push-pull assembly comprises a guide rod and a push-pull seat which are connected, the push-pull seat is fixedly connected to the end part of the guide rod, a guide groove matched with the guide rod is formed on the die opening disc, and the guide rod is embedded in the guide groove.

As a preferable scheme of the invention, the mold opening disc comprises a lower disc and an upper disc which are connected, the guide groove is positioned on the lower disc, the guide rod is provided with a needle bearing, and the upper disc is provided with an annular groove matched with the needle bearing.

As a preferred scheme of the present invention, the upper disc and the lower disc are rotatably connected, the upper disc is fixedly connected with the central column, and the lower disc is provided with a driving unit.

Compared with the prior art, the invention has the beneficial effects that: the upper end and the lower end of the connecting block on two sides of the middle half mold are simultaneously contacted with the left half mold and the right half mold, so that the stability of the left half mold and the right half mold is ensured in the rotating process of the left half mold and the right half mold, and the stability of the push-pull assembly in the moving process is ensured under the action of the guide rod and the guide groove, so that the left half mold and the right half mold are always in a synchronous state, the stable operation of the whole structure is realized, and glassware has better stability and reliability in the mold opening process.

Drawings

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

FIG. 2 is a schematic view of the connection of a three-split mold assembly with a mold split disc;

FIG. 3 is a schematic view of the connection of the bottom wall to the push-pull assembly;

FIG. 4 is a schematic view of the connection of the upper plate to the three-opening mold assembly;

FIG. 5 is a schematic structural view of a three-part mold assembly;

FIG. 6 is a top view of a three-part mold assembly;

FIG. 7 is a schematic view of the connection of the left, middle and right mold halves;

FIG. 8 is an exploded view of the left, middle and right mold halves;

reference numbers in the figures: the mold comprises a rotary table 1, a station 1-1, a central column 2, a mold opening disc 3, an upper disc 3-1, a lower disc 3-2, an annular groove 3-3, a three-mold opening assembly 4, a push-pull member 5, a cylinder 5-1, a cylinder mounting plate 5-2, a cylinder push plate 5-3, a guide rod 5-4, a pull rod 5-5, a push-pull assembly 5-6, a guide rod 5-7, a push-pull seat 5-8, a needle bearing 5-9, a left half mold 6, a left connecting piece 6-1, a left extension block 6-2, a left groove 6-3, a middle half mold 7, a connecting block 7-1, a right half mold 8, a right connecting piece 8-1, a right extension block 8-2, a right groove 8-3, a bottom plate 9, a left guide groove 9-1, a right guide groove 9-2, a mold core 10 and a left hinge shaft 11, right hinge axis 12, pin 14, left guide 15, right guide 16.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

As shown in fig. 1-8, a three-mold opening device for a glassware press comprises a rotary table 1 and a plurality of three-mold opening assemblies 4 positioned on the rotary table 1, wherein a central column 2 is arranged in the middle of the rotary table 1; the middle part of the rotary table 1 is provided with a die opening disc 3, a plurality of three-die-opening assemblies 4 are circumferentially arranged on the die opening disc 3, and a station 1-1 matched with the three-die-opening assemblies 4 is formed on the rotary table 1; the three-die-sinking assembly 4 comprises a push-pull piece 5, a left half die 6, a middle half die 7 and a right half die 8 which are connected with each other, the left half die 6, the middle half die 7 and the right half die 8 are sequentially connected into a ring, and the push-pull piece 5 is respectively connected with the left half die 6 and the right half die 8; the left half mould 6 is rotationally connected with the middle half mould 7, and the right half mould 8 is rotationally connected with the middle half mould 7; connecting blocks 7-1 are formed on two sides of the middle of the outer wall of the middle half die 7, a left connecting piece 6-1 is formed on the outer wall of the left half die 6, the left connecting piece 6-1 is connected with the top of the connecting block 7-1, a left extending block 6-2 is formed at the bottom of the outer wall of the left half die 6, the left extending block 6-2 is abutted against the bottom of the connecting block 7-1, and the left extending block 6-2 is connected with the push-pull piece 5; the outer wall of the right half mould 8 is provided with a right connecting piece 8-1, the right connecting piece 8-1 is connected with the top of the connecting block 7-1, the bottom of the outer wall of the right half mould 8 is provided with a right extending block 8-2, the right extending block 8-2 is abutted against the bottom of the connecting block 7-1, and the right extending block 8-2 is connected with the push-pull piece 5.

The quantity of the three-opening mold assemblies 4 on the rotary table 1 can be set according to actual needs, so that synchronous or asynchronous operation on a plurality of stations 1-1 can be realized, the overall machining efficiency of glassware is improved, the central column 2 can rotate to realize the rotation of the whole rotary table 1 and the three-opening mold assemblies 4, and the three-opening mold assemblies 4 are rotated to different positions to correspond to different operator positions.

The push-pull member 5 is used for controlling the rotation of the left half mold 6 and the right half mold 8, so as to realize the mold closing and mold opening of the left half mold 6, the middle half mold 7 and the right half mold 8, when in the mold closing state, the left half mold 6, the middle half mold 7 and the right half mold 8 are connected into a ring, at this time, the left half mold 6 is contacted with the right half mold 8, and when in the mold opening state, the left half mold 6, the middle half mold 7 and the right half mold 8 are connected into an arc-shaped structure, at this time, a gap is formed between the left half mold 6 and the right half mold 8.

The upper end and the lower end of the connecting block 7-1 close to the left half die 6 are respectively contacted with the left connecting piece 6-1 and the left extending block 6-2, so that in the rotating process of the left half die 6, the connecting block 7-1 can play a role in limiting the left half die 6, the left half die 6 is always in a horizontal state in the rotating process and the left half die 6 is prevented from vibrating up and down, and similarly, the upper end and the lower end of the connecting block 7-1 close to the right half die 8 are respectively contacted with the right connecting piece 8-1 and the right extending block 8-2, so that in the rotating process of the right half die 8, the connecting block 7-1 can play a role in limiting the right half die 8, the right half die 8 is always in a horizontal state in the rotating process and the right half die 8 is prevented from vibrating up and down.

Therefore, the left half die 6 and the right half die 8 have better stability in the die opening and closing processes, and the die opening precision of the glassware is improved.

The three-opening die assembly 4 further comprises a bottom plate 9, the bottom plate 9 is fixedly connected to a station 1-1 of the turntable 1, a die core 10 is arranged in the middle of the bottom plate 9, the left half die 6, the middle half die 7 and the right half die 8 are located on the bottom plate 9, the left half die 6, the middle half die 7 and the right half die 8 are arranged around the die core 10, and the middle half die 7 is fixedly connected to the bottom plate 9 through bolts.

A left guide groove 9-1 matched with the left half mould 6 and a right guide groove 9-2 matched with the right half mould 8 are formed on the bottom plate 9, a left guide piece 15 positioned in the left guide groove 9-1 is arranged at the bottom of the left half mould 6, a right guide piece 16 positioned in the right guide groove 9-2 is arranged at the bottom of the right half mould 8, and the left guide groove 9-1 and the right guide groove 9-2 are oppositely arranged and bent structures.

The left guide groove 9-1 is arranged according to the moving path of the left half die 6, the left guide piece 15 is fixedly connected to the bottom of the left half die 6, in the rotating process of the left half die 6, the left guide piece 15 slides along the length direction of the left guide groove 9-1, so that the stability of the left half die 6 in the rotating process is ensured, similarly, the right guide groove 9-2 is arranged according to the moving path of the right half die 8, the right guide piece 16 is fixedly connected to the bottom of the right half die 8, in the rotating process of the right half die 8, the right guide piece 16 slides along the length direction of the right guide groove 9-2, so that the stability of the right half die 8 in the rotating process is ensured.

The left guide part 15 and the right guide part 16 are identical in structure and are provided with a plurality of guide bearings in a sleeved mode on a pin shaft, so that friction among the left half mould 6, the right half mould 8 and the middle half mould 7 is reduced in the moving process of the left half mould 6 and the right half mould 8, and the overall practical precision and the service life are improved.

A left hinge shaft 11 is arranged between the left connecting piece 6-1 and the connecting block 7-1, similarly, a right hinge shaft 12 is arranged between the right connecting piece 8-1 and the connecting block 7-1, the left connecting piece 6-1 is horizontally arranged, the left connecting piece 6-1 is rotatably connected with the connecting block 7-1 through the left hinge shaft 11, the right connecting piece 8-1 is horizontally arranged, and the right connecting piece 8-1 is rotatably connected with the connecting block 7-1 through the right hinge shaft 12.

A left groove 6-3 is formed in the left extending block 6-2, a right groove 8-3 is formed in the right extending block 8-2, the end portion of the push-pull piece 5 is embedded in the left groove 6-3 and the right groove 8-3, pins 14 connected with the push-pull piece 5 are arranged on the left groove 6-3 and the right groove 8-3, fixed connection between the left extending block 6-2 and the push-pull piece 5 is achieved under the action of the pins 14, and fixed connection between the right extending block 8-2 and the push-pull piece 5 is achieved in the same way, so that the left extending block 6-2 and the right extending block 8-2 are pushed and rotated in the moving process of the push-pull piece 5.

The push-pull part 5 comprises an air cylinder 5-1, an air cylinder mounting plate 5-2, an air cylinder push plate 5-3 and a guide rod 5-4, the air cylinder mounting plate 5-2 is fixedly connected to the die opening plate 3, the air cylinder 5-1 is fixedly connected to the air cylinder mounting plate 5-2, the air cylinder push plate 5-3 is connected with an air cylinder rod of the air cylinder 5-1, the guide rod 5-4 is connected to the air cylinder push plate 5-3, the guide rod 5-4 penetrates through the air cylinder mounting plate 5-2, and the guide rod 5-4 is arranged in parallel with the air cylinder rod.

The cylinder mounting plate 5-2 is fixedly connected to the die opening plate 3 through bolts, the cylinder 5-1 is fixedly connected to the cylinder mounting plate 5-2 through bolts, the cylinder push plate 5-3 stretches under the action of the cylinder 5-1, and the guide rod 5-4 is used for limiting the movement of the cylinder push plate 5-3 and preventing the cylinder push plate 5-3 from rotating in the stretching process, so that the stability of the cylinder push plate 5-3 in the moving process is improved.

The push-pull part 5 further comprises push-pull components 5-6 and pull rods 5-5, the push-pull components 5-6 are fixedly connected with the cylinder push plate 5-3, the pull rods 5-5 are oppositely arranged at two ends of the push-pull components 5-6, and the ends of the pull rods 5-5 arranged at two ends of the push-pull components 5-6 are respectively positioned in the left groove 6-3 and the right groove 8-3.

The push-pull assembly 5-6 is fixedly connected with the cylinder push plate 5-3 through a bolt, and the cylinder push plate 5-3 is synchronously driven to move in the moving process of the push-pull assembly 5-6, so that the pull rod 5-5 is synchronously driven to move.

The push-pull assembly 5-6 comprises a guide rod 5-7 and a push-pull seat 5-8 which are connected, the push-pull seat 5-8 is fixedly connected with the end part of the guide rod 5-7, a guide groove matched with the guide rod 5-7 is formed on the die sinking disc 3, the guide rod 5-7 is embedded in the guide groove,

the size of the guide groove is consistent with that of the guide rod 5-7, so that in the moving process of the push-pull assembly 5-6, the push-pull assembly 5-6 is guided under the action of the guide rod 5-7, the moving stability of the push-pull assembly 5-6 is improved, the push-pull assembly 5-6 is ensured to synchronously drive the pull rods 5-5 at two ends in the moving process, and the left half mold 6 and the right half mold 8 synchronously rotate.

The mold opening plate 3 comprises a lower plate 3-2 and an upper plate 3-1 which are connected, a guide groove is positioned on the lower plate 3-2, needle bearings 5-9 are formed on guide rods 5-7, an annular groove 3-3 matched with the needle bearings 5-9 is formed on the upper plate 3-1, the needle bearings 5-9 are always positioned in the mold opening plate 3, after the guide rods 5-7 move outwards to a certain position, the needle bearings 5-9 abut against the inner wall of the annular groove 3-3 to limit the guide rods 5-7, and at the moment, the left half mold 6 and the right half mold 8 are in a mold closing state.

The needle bearings 5-9 may be of the CF18B type,

the upper disc 3-1 is rotatably connected with the lower disc 3-2, the upper disc 3-1 is fixedly connected with the central column 2, the lower disc 3-2 is provided with a driving unit, a track cam matched with the push-pull piece 5 is formed in the lower disc 3-1, the track cam is synchronously driven to rotate in the rotating process of the lower disc 3-1, the push-pull piece 5 can be pushed by the rotation of the track cam, and the driving unit of the lower disc 3-1 can comprise a stepping motor, a belt pulley, a chain wheel or other driving elements.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more here: the mold comprises a rotary table 1, a station 1-1, a central column 2, a mold opening disc 3, an upper disc 3-1, a lower disc 3-2, an annular groove 3-3, a three-mold opening assembly 4, a push-pull member 5, a cylinder 5-1, a cylinder mounting plate 5-2, a cylinder push plate 5-3, a guide rod 5-4, a pull rod 5-5, a push-pull assembly 5-6, a guide rod 5-7, a push-pull seat 5-8, a needle bearing 5-9, a left half mold 6, a left connecting piece 6-1, a left extension block 6-2, a left groove 6-3, a middle half mold 7, a connecting block 7-1, a right half mold 8, a right connecting piece 8-1, a right extension block 8-2, a right groove 8-3, a bottom plate 9, a left guide groove 9-1, a right guide groove 9-2, a mold core 10 and a left hinge shaft 11, right articulation 12, pin 14, left guide 15, right guide 16, etc., without excluding the possibility of using other terms; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.