阅读说明：本技术 一种工程塑料包装容器成型装置 (Engineering plastic packaging container forming device ) 是由 姚正武 于 2021-08-19 设计创作，主要内容包括：本发明涉及一种工程塑料包装容器成型装置,包括机架,机架上设有可开合的组合模具、位于组合模具顶部的吹塑管,组合模具包括左模具、右模具和下模具,左模具与右模具之间铰接有第一连板,右模具与机架之间设有用于驱动右模具相对第一连板与左模具的铰接位往复偏转的第一驱动机构,下模具与机架之间设有用于驱动下模具升降移动的第二驱动机构,第二驱动机构与第一驱动机构之间设有联动机构,吹塑管升降移动,组合模具的左模具、右模具和下模具通过联动可同步驱动开合模、并与吹塑管的压盖配合,具有充分的开模分离度和开度以便快速进料和脱膜、快速同步合模成型密闭可靠性,有利于提高工程塑料包装容器成型效率和质量。(The invention relates to an engineering plastic packaging container forming device, which comprises a frame, wherein the frame is provided with a combined die capable of being opened and closed and a blow molding pipe positioned at the top of the combined die, the combined die comprises a left die, a right die and a lower die, a first connecting plate is hinged between the left die and the right die, a first driving mechanism for driving the right die to deflect in a reciprocating manner relative to the hinged position of the first connecting plate and the left die is arranged between the right die and the frame, a second driving mechanism for driving the lower die to move up and down is arranged between the lower die and the frame, a linkage mechanism is arranged between the second driving mechanism and the first driving mechanism, the blow molding pipe moves up and down, the left die, the right die and the lower die of the combined die can synchronously drive opening and closing of the dies through linkage and are matched with a gland of the blow molding pipe, and the left die, the right die and the lower die have sufficient die opening separation degree and opening degree so as to facilitate quick feeding, demoulding and quick synchronous molding and sealing reliability, is beneficial to improving the forming efficiency and quality of the engineering plastic packaging container.)

1. The utility model provides an engineering plastics packaging container forming device, includes frame (1), be equipped with the assembling die (2) that can open and shut on frame (1), be located blow molding pipe (3) at assembling die (2) top, its characterized in that, assembling die (2) include left mould (21), right mould (22) and bed die (23), left side mould (21) are fixed with frame (1) and articulated between right mould (22) have at least one first link board (4), be equipped with between right mould (22) and frame (1) and be used for driving right mould (22) first link board (4) and the articulated position reciprocating deflection's of left mould (21) first actuating mechanism (5), be equipped with between bed die (23) and frame (1) and be used for driving bed die (23) lift movement's second actuating mechanism (7), be equipped with synchronous motion's linkage mechanism (8) between second actuating mechanism (7) and first actuating mechanism (5), the blow-molding pipe (3) is externally provided with a gland (16) matched with the tops of the left mold (21) and the right mold (22), and a third driving mechanism (9) used for driving the blow-molding pipe (3) to move up and down is arranged between the blow-molding pipe (3) and the rack (1).

2. The forming device of the engineering plastic packaging container as claimed in claim 1, wherein at least one first notch (10) is arranged on two sides of the left mold (21), at least one first boss (11) which is arranged in a staggered way with the first notch (10) is arranged on the top and the bottom of the left mold (21), a second boss (12) which is in clearance fit with the first notch (10) is arranged on two sides of the right mold (22), and a second notch (13) which is in clearance fit with the first boss (11) is arranged on the top and the bottom of the right mold (22).

3. The forming device of the engineering plastic packaging container according to claim 1, wherein the first driving mechanism (5) comprises a vertically arranged deflection shaft (51) and at least one second connecting plate (52), a fourth driving mechanism (6) for driving the deflection shaft (51) to deflect on the frame (1) in a reciprocating manner is arranged between the deflection shaft (51) and the frame (1), at least one fixed deflection arm (14) is arranged on one side of the deflection shaft (51), two ends of the second connecting plate (52) are respectively hinged with the right mold (22) and the deflection arm (14), and the hinging position of the second connecting plate (52) and the right mold (22) and the hinging position of the first connecting plate (4) and the right mold (22) are arranged in a staggered manner.

4. The forming device for engineering plastic packaging containers as claimed in claim 3, characterized in that the fourth driving mechanism (6) comprises a horizontally arranged hydraulic cylinder (61), and at least one third connecting plate (62) hinged with the hydraulic rod of the hydraulic cylinder (61) and the deflection arm (14), the tail part of the hydraulic cylinder (61) is vertically provided with a positioning shaft (15) parallel to the deflection shaft (51), and the hinged position of the third connecting plate (62) and the deflection arm (14) and the hinged position of the second connecting plate (52) and the deflection arm (14) are arranged in a staggered manner.

5. The apparatus of claim 3, wherein the container is formed by a molding machine, a through hole (17) is arranged on the frame (1), a first guide wall (18) which penetrates through the through hole (17) and is in sliding fit with the lower die (23) is arranged at the bottom of the left die (21), the bottom of the frame (1) is provided with a second guide wall (19) which is in clearance fit with two ends of the first guide wall (18) and the inner wall of which is in sliding fit with the outer wall of the lower die (23), the second driving mechanism (7) comprises a driving plate (71) with the center hinged with the bottom of the frame (1) and a tension spring (72) connected with the two sides of the driving plate (71) and the bottom of the side of the first guide wall (18), the driving plate (71) is provided with a first guide hole (20), and the bottom of the lower die (23) is provided with a first guide rod (24) which is perpendicular to the driving plate (71) and is in sliding fit with the first guide hole (20).

6. The forming device of the engineering plastic packaging container according to claim 5, wherein the driving plate (71) is provided with a second guide hole (25) which is in sliding fit with the deflection shaft (51), the linkage mechanism (8) comprises a sliding block (81) which is positioned at the bottom of the driving plate (71) and is in sliding fit with the deflection shaft (51), and a second guide rod (82) which is parallel to the driving shaft and penetrates through the sliding block (81), a spiral chute (26) is arranged outside the deflection shaft (51), and a ball (27) which is in sliding fit with the spiral chute (26) is arranged on the inner wall of the sliding block (81).

7. The forming device of the engineering plastic packaging container as claimed in claim 1, wherein the bottom of the left mold (21) and the bottom of the right mold (22) are provided with at least one third notch (28), and the lower mold (23) is provided with a third boss (29) which is in clearance fit with the third notch (28).

8. The apparatus for forming engineering plastic packaging containers as claimed in claim 1, wherein the top of the left mold (21) and the top of the right mold (22) are each provided with at least one fourth notch (30), and the gland (16) is provided with a fourth boss (31) which is in clearance fit with the fourth notch (30).

9. The forming device of the engineering plastic packaging container according to claim 1, wherein a supporting plate (32) is fixedly connected to the outside of the blow molding pipe (3), a plurality of third guide rods (33) vertically penetrating through the supporting plate (32) are arranged on the gland (16), a ring plate (34) is arranged at the end parts of the plurality of third guide rods (33), and a compression spring (35) positioned between the supporting plate (32) and the gland (16) is arranged outside the third guide rods (33).

10. The forming device of engineering plastic packaging container according to any one of claims 1 to 9, wherein the third driving mechanism (9) is at least one cylinder (91) vertically fixed with the frame (1) and arranged in a staggered manner with the blowing pipe (3), and a cylinder rod of the cylinder (91) penetrates through the frame (1) and is fixedly connected with the blowing pipe (3).

Technical Field

The invention relates to a forming device of an engineering plastic packaging container, belonging to the technical field of engineering plastic product production equipment.

Background

The engineering plastic has the excellent comprehensive characteristics of high rigidity, small creep, high mechanical strength, good heat resistance, good electrical insulation, long-term use in harsh chemical and physical environments and the like, and is favorable for improving the safety of long-term transportation, storage and use of dangerous chemicals and the like when being applied to manufacturing of packaging containers. Engineering plastic packaging containers are generally formed by adopting blow molding equipment, thermoplastic engineering plastics are placed in an openable mold while hot, compressed air is introduced immediately after a film is closed, a plastic parison is blown to cling to the inner wall of the mold, and various hollow packaging container products are obtained after cooling and demolding, but because the mold is opened and closed and the closed structure is unreasonable, the rapid demolding is not facilitated, so that the forming quality and efficiency are influenced.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the engineering plastic packaging container forming device, wherein a left die, a right die and a lower die of the combined die can synchronously drive the opening and closing of the die through linkage and are matched with a gland of a blowing pipe, the left die, the right die and the lower die have sufficient opening separation degree and opening degree so as to facilitate quick feeding, demoulding and closing forming sealing reliability, and the improvement of the forming efficiency and quality of the engineering plastic packaging container is facilitated.

The invention is realized by the following technical scheme:

the engineering plastic packaging container forming device comprises a rack, wherein the rack is provided with a combined die capable of being opened and closed and a blow molding pipe positioned at the top of the combined die, the combined die comprises a left die, a right die and a lower die, the left die is fixed with the rack, at least one first connecting plate is hinged between the left die and the right die, and a first driving mechanism for driving the right die to deflect in a reciprocating manner relative to the hinged position of the first connecting plate and the left die is arranged between the right die and the rack;

two sides of the left die are provided with at least one first notch, the top and the bottom of the left die are provided with at least one first boss staggered with the first notch, two sides of the right die are provided with second bosses in clearance fit with the first notches, and the top and the bottom of the right die are provided with second notches in clearance fit with the first bosses;

the first driving mechanism comprises a deflection shaft and at least one second connecting plate which are vertically arranged, a fourth driving mechanism for driving the deflection shaft to deflect on the rack in a reciprocating manner is arranged between the deflection shaft and the rack, at least one fixed deflection arm is arranged on one side of the deflection shaft, two ends of the second connecting plate are respectively hinged with the right die and the deflection arm, and the hinging position of the second connecting plate and the right die and the hinging position of the first connecting plate and the right die are arranged in a staggered manner;

the fourth driving mechanism comprises a hydraulic cylinder arranged horizontally, and at least one third connecting plate hinged with a hydraulic rod and a deflection arm of the hydraulic cylinder, the tail part of the hydraulic cylinder is vertically provided with a positioning shaft parallel to the deflection shaft, and the hinge position of the third connecting plate and the deflection arm and the hinge position of the second connecting plate and the deflection arm are arranged in a staggered manner;

a second driving mechanism for driving the lower mold to move up and down is arranged between the lower mold and the rack, a linkage mechanism which moves synchronously is arranged between the second driving mechanism and the first driving mechanism, a gland matched with the tops of the left mold and the right mold is arranged outside the blow molding pipe, and a third driving mechanism for driving the blow molding pipe to move up and down is arranged between the blow molding pipe and the rack;

the frame is provided with a through hole, the bottom of the left die is provided with a first guide wall which penetrates through the through hole and is in sliding fit with the lower die, the bottom of the frame is provided with a second guide wall which is in clearance fit with two ends of the first guide wall and is in sliding fit with the outer wall of the lower die, the second driving mechanism comprises a driving plate and tension springs, the center of the driving plate is hinged with the bottom of the frame, two sides of the driving plate are connected with the bottom of the first guide wall, the driving plate is provided with a first guide hole, and the bottom of the lower die is provided with a first guide rod which is perpendicular to the driving plate and is in sliding fit with the first guide hole;

the driving plate is provided with a second guide hole in sliding fit with the deflection shaft, the linkage mechanism comprises a sliding block which is positioned at the bottom of the driving plate and is in sliding fit with the deflection shaft, and a second guide rod which is parallel to the driving shaft and penetrates through the sliding block, a spiral chute is arranged outside the deflection shaft, and the inner wall of the sliding block is provided with a ball in sliding fit with the spiral chute;

the bottom parts of the left die and the right die are respectively provided with at least one third notch, the lower die is provided with a third boss in clearance fit with the third notch, the top parts of the left die and the right die are respectively provided with at least one fourth notch, and the gland is provided with a fourth boss in clearance fit with the fourth notch;

a supporting disk is fixedly connected outside the blow molding pipe, a plurality of third guide rods vertically penetrating through the supporting disk are arranged on the gland, an annular plate is arranged at the end parts of the third guide rods, and a pressure spring positioned between the supporting disk and the gland is arranged outside the third guide rods; the third driving mechanism is at least one cylinder which is vertically fixed with the frame and is arranged in a staggered mode with the blow molding pipe, and a cylinder rod of the cylinder penetrates through the frame and is fixedly connected with the blow molding pipe.

The invention has the beneficial effects that:

(1) the hydraulic rod of the hydraulic cylinder of the fourth driving mechanism stretches and retracts, the deflection arm is pushed or pulled by the third connecting plate, the deflection shaft can deflect in a reciprocating manner on the rack, the deflection arm pushes or pulls the right die through the second connecting plate, the first connecting plate of the right die can deflect in a reciprocating manner around the hinge position with the left die, the die opening and closing of the left die and the right die are realized, the first notch is matched with the second boss, and the first boss and the second notch are closed and sealed reliably;

(2) when the deflection shaft deflects, a sliding block of the linkage mechanism is matched with a spiral chute of the deflection shaft through a ball and descends or ascends along the deflection shaft under the limiting and guiding action of a second guide rod parallel to the deflection shaft, and a second guide hole is in sliding fit with the deflection shaft, so that the driving plate deflects around a hinge joint with the rack relatively under the action of tension of a tension spring, and synchronous driving is realized;

(3) the driving plate deflected by the second driving mechanism pushes or pulls the first guide rod through the first guide hole, so that the lower die is lifted in a sliding fit with the first guide wall and the second guide wall, the lower die, the left die and the right die are synchronously opened and closed, and the lower die, the left die and the right die are matched and sealed reliably through the third boss and the third notch;

(4) when the cylinder rod of the cylinder drives the blowing pipe to lift, the supporting disc moves along the third guide rods and compresses the compression spring, so that the gland is compressed and combined with the combined die, and the blowing pipe extends into the combined die to perform blow molding on the engineering plastic parison or extends to the gland to be separated from the combined die, so that demolding is facilitated;

to sum up, the left die, the right die and the lower die of the combined die can synchronously drive the die to be opened and closed through linkage and are matched with the gland of the blowing pipe, and the combined die has sufficient die opening separation degree and opening degree so as to facilitate quick feeding, demoulding and die closing forming sealing reliability, and is favorable for improving the forming efficiency and quality of the engineering plastic packaging container.

Drawings

FIG. 1 is a top front perspective view of the present invention.

Figure 2 is a bottom rear perspective view of the present invention.

Fig. 3 is a front view structural diagram of the present invention.

FIG. 4 is a top perspective view of the left mold in combination with the lower mold and the blow molded tube of the present invention.

Fig. 5 is a bottom perspective view of fig. 4.

FIG. 6 is a top perspective view of the right mold of the present invention in combination with a lower mold and a blow molded tube.

Fig. 7 is a bottom perspective view of fig. 5.

FIG. 8 is a top perspective view of a combination mold of the present invention in mating relationship.

Fig. 9 is a bottom perspective view of fig. 8.

Fig. 10 is a top view structural view of fig. 8.

The labels in the figure are: the blow molding machine comprises a frame 1, a combined mold 2, a blow molding pipe 3, a left mold 21, a right mold 22, a lower mold 23, a first connecting plate 4, a first driving mechanism 5, a first notch 10, a first boss 11, a second boss 12, a second notch 13, a deflection shaft 51, a second connecting plate 52, a fourth driving mechanism 6, a deflection arm 14, a hydraulic cylinder 61, a third connecting plate 62, a positioning shaft 15, a second driving mechanism 7, a linkage mechanism 8, a gland 16, a third driving mechanism 9, a through hole 17, a first guide wall 18, a second guide wall 19, a driving plate 71, a tension spring 72, a first guide hole 20, a first guide rod 24, a second guide hole 25, a sliding block 81, a second guide rod 82, a spiral chute 26, a ball 27, a third notch 28, a third boss 29, a fourth notch 30, a fourth boss 31, a support plate 32, a third guide rod 33, a ring plate 34, a pressure spring 35 and a cylinder 91.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

An engineering plastic packaging container forming device comprises a rack 1, wherein a combined die 2 capable of opening and closing and a blow molding pipe 3 positioned at the top of the combined die 2 are arranged on the rack 1, the combined die 2 comprises a left die 21, a right die 22 and a lower die 23, the left die 21 is fixed with the rack 1, at least one first connecting plate 4 is hinged between the left die 21 and the right die 22, and a first driving mechanism 5 for driving the right die 22 to deflect in a reciprocating mode relative to the hinged position of the first connecting plate 4 and the left die 21 is arranged between the right die 22 and the rack 1;

two sides of the left die 21 are provided with at least one first notch 10, the top and the bottom of the left die 21 are provided with at least one first boss 11 which is arranged in a staggered manner with the first notch 10, two sides of the right die 22 are provided with second bosses 12 which are in clearance fit with the first notches 10, and the top and the bottom of the right die 22 are provided with second notches 13 which are in clearance fit with the first bosses 11;

the first driving mechanism 5 comprises a deflection shaft 51 and at least one second connecting plate 52 which are vertically arranged, a fourth driving mechanism 6 for driving the deflection shaft 51 to deflect on the rack 1 in a reciprocating manner is arranged between the deflection shaft 51 and the rack 1, at least one fixed deflection arm 14 is arranged on one side of the deflection shaft 51, two ends of the second connecting plate 52 are respectively hinged with the right die 22 and the deflection arm 14, and the hinged position of the second connecting plate 52 and the right die 22 and the hinged position of the first connecting plate 4 and the right die 22 are arranged in a staggered manner;

the fourth driving mechanism 6 comprises a hydraulic cylinder 61 arranged horizontally, and at least one third connecting plate 62 hinged with a hydraulic rod of the hydraulic cylinder 61 and the deflection arm 14, the tail part of the hydraulic cylinder 61 is vertically provided with a positioning shaft 15 parallel to the deflection shaft 51, and the hinged position of the third connecting plate 62 and the deflection arm 14 and the hinged position of the second connecting plate 52 and the deflection arm 14 are arranged in a staggered manner;

a second driving mechanism 7 for driving the lower mold 23 to move up and down is arranged between the lower mold 23 and the rack 1, a linkage mechanism 8 for synchronous motion is arranged between the second driving mechanism 7 and the first driving mechanism 5, a gland 16 matched with the tops of the left mold 21 and the right mold 22 is arranged outside the blow molding pipe 3, and a third driving mechanism 9 for driving the blow molding pipe 3 to move up and down is arranged between the blow molding pipe 3 and the rack 1;

the frame 1 is provided with a through hole 17, the bottom of the left die 21 is provided with a first guide wall 18 which penetrates through the through hole 17 and is in sliding fit with the lower die 23, the bottom of the frame 1 is provided with a second guide wall 19 which is in clearance fit with two ends of the first guide wall 18 and has an inner wall in sliding fit with the outer wall of the lower die 23, the second driving mechanism 7 comprises a driving plate 71 and tension springs 72, the centers of the driving plate 71 and the bottom of the frame 1 are hinged, two sides of the driving plate 71 and the bottom of the side of the first guide wall 18 are connected, the driving plate 71 is provided with a first guide hole 20, and the bottom of the lower die 23 is provided with a first guide rod 24 which is perpendicular to the driving plate 71 and is in sliding fit with the first guide hole 20;

the driving plate 71 is provided with a second guide hole 25 in sliding fit with the deflection shaft 51, the linkage mechanism 8 comprises a sliding block 81 which is positioned at the bottom of the driving plate 71 and is in sliding fit with the deflection shaft 51, and a second guide rod 82 which is parallel to the driving shaft and penetrates through the sliding block 81, a spiral chute 26 is arranged outside the deflection shaft 51, and the inner wall of the sliding block 81 is provided with a ball 27 in sliding fit with the spiral chute 26;

the bottoms of the left die 21 and the right die 22 are respectively provided with at least one third notch 28, the lower die 23 is provided with a third boss 29 in clearance fit with the third notch 28, the tops of the left die 21 and the right die 22 are respectively provided with at least one fourth notch 30, and the gland 16 is provided with a fourth boss 31 in clearance fit with the fourth notch 30;

a supporting disc 32 is fixedly connected to the outside of the blowing tube 3, a plurality of third guide rods 33 vertically penetrating through the supporting disc 32 are arranged on the gland 16, annular plates 34 are arranged at the end parts of the third guide rods 33, and a pressure spring 35 positioned between the supporting disc 32 and the gland 16 is arranged outside the third guide rods 33; the third driving mechanism 9 is at least one cylinder 91 vertically fixed with the frame 1 and arranged in a staggered manner with the blow molding pipe 3, and a cylinder rod of the cylinder 91 penetrates through the frame 1 to be fixedly connected with the blow molding pipe 3.

The working principle of the invention is as follows:

referring to the attached drawings, initially, a left die 21, a right die 22 and a lower die 23 of a combined die 2 are in a separated state, a blowing pipe is higher than the left die 21 and the right die 22, a hot engineering plastic parison is placed in the left die 21, a fourth driving mechanism 6, namely a hydraulic rod of a hydraulic cylinder 61, extends to push a hinged deflection arm 14 through a hinged third connecting plate 62, the tail end of the hydraulic cylinder 61 deflects around a positioning shaft 15 relatively, the hydraulic rod deflects around a hinged position with the third connecting plate 62 relatively, and the deflection arm 14 drives a deflection shaft 51 to deflect relatively on a frame 1;

when the first driving mechanism 5, namely the vertical deflection shaft 51 deflects, the deflection arm 14 pushes the hinged second connecting plate 52, so that the second connecting plate 52 pushes the hinged right die 22, two ends of the second connecting plate 52 deflect relatively around the hinge joint position of the deflection arm 14 and the right die 22, the first connecting plate 4 hinged with the right die 22 deflects relatively around the hinge joint position of the right die 22 and the left die 21 under the pulling action of the right die 22, and the right die 22 moves relatively around the hinge joint position of the first connecting plate 4 and the left die 21 to be closed with the left die 21;

the two sides of the left die 21 are closed through the first notch 10 and the second boss 12 of the right die 22, and the first bosses 11 at the top and the bottom of the left die 21 and the second notches 13 of the right die 22 are closed, so that the sealing contact surface is improved, and the sealing performance and the molding quality are ensured;

when the deflection shaft 51 deflects, the sliding block 81 of the linkage mechanism 8 is matched with the spiral chute 26 of the deflection shaft 51 through the ball 27 and descends along the deflection shaft 51 under the limiting and guiding action of the second guide rod 82 parallel to the deflection shaft 51, so that the driving plate 71 of the second driving mechanism 7 relatively deflects around the hinge joint position with the frame 1 under the action of the elastic restoring force of the tension spring 72, and the second guide hole 25 is in sliding fit with the deflection shaft 51 to ensure positioning;

the deflected driving plate 71 pushes the first guide rod 24 in sliding fit through the first guide hole 20, so that the lower die 23 on the first guide rod 24 is in sliding fit with the first guide wall 18 of the left die 21 and is in sliding fit with the second guide wall 19 of the rack 1 to ascend, and the second guide wall 19 is matched with the end part of the first guide wall 18 to facilitate the quick positioning and installation of the left die 21 and the rack 1;

after the lower die 23 rises, the third boss 29 is matched with the third notches 28 of the left die 21 and the right die 22 to increase the sealing surface, so that the sealing performance is improved, the closing and the closing of the left die 21 and the right die 22 are realized only by the first driving mechanism 5 which is driven by the fourth driving mechanism 6 and linked by the linkage mechanism 8, meanwhile, the closing of the lower die 23, the left die 21 and the right die 22 is realized by the linkage of the second driving mechanism 7, the synchronous and quick die closing of the combined die 2 is realized, and the temperature of a thermoplastic engineering plastic parison is ensured;

connecting the tail end of the blow-molding pipe 3 with a compressor air supply system, connecting a cylinder rod of an air cylinder 91 with a support plate 32 to drive the blow-molding pipe 3 to descend, enabling a gland 16 to be in closed contact with the combined mold 2 through a fourth boss 31 and fourth notches 30 of the left mold 21 and the right mold 22, moving the support plate 32 along a plurality of third guide rods 33 and compressing a pressure spring 35 in the continuous descending process, and ensuring the compression effect of the gland 16 and the combined mold 2 by using the elastic restoring force of the pressure spring 35;

the blowing pipe 3 extends into the combined die 2 from the center of the gland 16 to supply air to the parison so that the upper part of the parison is contacted with the inner wall shapes of the left die 21 and the right die 22, and supplies air to the inner bottom of the parison along with the continuous descending of the blowing pipe 3 so that the parison is contacted with the surfaces of the left die 21, the right die 22 and the lower die 23 to form the bottom shape, when the blowing pipe 3 is driven to ascend by the contraction of a cylinder rod of the cylinder 91, the gland 16 keeps pressing under the pressure effect, the blowing ensures the quality of the integral shape, the hollow container shape is formed by solidification after the blowing operation, and the inner wall shapes of the left die 21, the right die 22 and the lower die 23 are designed according to the packaging requirements to form container structures with different appearances;

when the cylinder rod of the cylinder 91 continues to drive the blowing pipe 3 to move upwards, the supporting disk 32 rises along the third guide rod 33, the pressure spring 35 gradually recovers to an extended state, and the supporting disk 32 and the annular plate 34 are limited to continue lifting the whole pressure plate, so that the pressure plate is separated from the combined die 2;

similarly, the fourth driving mechanism 6, namely the hydraulic rod of the hydraulic cylinder 61, is contracted to pull the deflection arm 14 by the hinged third connecting plate 62, so that the deflection shaft 51 of the deflection arm 14 deflects reversely on the frame 1, the deflection arm 14 pulls the right mold 22 by the second connecting plate 52 hinged with the first driving mechanism 5, the right mold 22 pushes the hinged first connecting plate 4, and the first connecting plate 4 deflects reversely around the hinged position with the left mold 21, so that the right mold 22 is opened relative to the left mold 21;

when the deflection shaft 51 deflects reversely, the sliding block 81 of the linkage mechanism 8 is in sliding fit with the spiral chute 26 through the ball 27 and is guided downwards in a sliding fit limit of the second guide rod 82, the sliding block 81 ascends along the deflection shaft 51 to push the driving plate 71 of the top second driving mechanism 7, the second guide hole 25 of the driving plate 71 is in sliding fit with the deflection shaft 51 to give way, the driving plate 71 deflects reversely around a hinge position with the frame 1, in the figure, the center of the driving plate 71 is hinged and connected with the frame 1 through a hinge seat in a pi-shaped structure, the driving plate 71 stretches the tension spring 72 with two sides obliquely fixed with the first guide wall 18 in the reverse deflection process, and simultaneously, the lower die 23 is pulled to descend along the first guide wall 18 and the second guide wall 19 through the sliding fit of the first guide hole 20 and the first guide rod 24 of the lower die 23 to separate from the left die 21;

therefore, the initial mold opening state is quickly recovered, the left mold 21, the right mold 22 and the lower mold 23 are separated and have larger opening degrees, the formed packaging container is conveniently taken out of the left mold 21, and the hot engineering plastic parison is placed in the left mold 21 for mold closing and blow molding again;

to sum up, this application realizes the mould that opens and shuts of left mould 21 and right mould 22 through the reciprocal deflection in articulated position of first link plate 4 of first actuating mechanism 5 drive right mould 22 relatively and left mould 21, and at the transmission of link gear 8, under the 7 drive bed die 23 lifting movement effects of second actuating mechanism, realize bed die 23 and left mould 21, the synchronous mould that opens and shuts of right mould 22, the blowing pipe 3 with lifting movement drives 16 effects of gland and the switching of assembling die 2, carry out the blow molding operation, guarantee 2 die sinking parting degrees and the aperture of assembling die so that quick feeding and demolding, the airtight reliability of compound die shaping, be favorable to improving engineering plastics packaging container shaping efficiency and quality.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.