A combined connecting rod mechanism for linking the motorized side mold and bottom mold of bottle blowing

Abstract

The present invention discloses a combined connecting rod mechanism in which a movable side mold of a bottle blowing machine is linked with a bottom mold, and a side mold rotor arm that drives the opening and closing movement of the movable side mold. While driving the opening and closing movement of the movable side mold, the bottom mold is synchronously driven to perform a deflection and lifting movement, so that the opening and closing movement of the movable side mold is precisely coordinated with the deflection and lifting movement of the bottom mold, so as to achieve effective coordination of the deflection and lifting movement of the bottom mold and the opening and closing movement of the movable side mold. The present invention discloses a combined connecting rod mechanism in which a movable side mold of a bottle blowing machine is linked with a bottom mold, and the series-type combined connecting rod bottom mold deflection and lifting mechanism formed by connecting a first planar four-bar linkage mechanism and a spatial double swing slider mechanism in series is then combined with a second planar four-bar linkage mechanism. The connection between the components is a sliding pair, a rotating pair or a spherical pair. The mechanism is simple, the dynamic load is small, the vibration and impact of the mechanism can be effectively reduced, the wear of the components can be reduced, the movement of the bottom mold can be accurately controlled, the movement stability and reliability of the bottle blowing machine can be enhanced, and the high-speed performance of the whole machine can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of bottle blowing machines, and in particular to a combined connecting rod mechanism for linking a motorized side mold and a bottom mold for bottle blowing. Background Art

[0002] Bottle blowing machine is a key equipment for producing plastic bottles for various liquid packaging (filling). Bottle blowing machine has strict requirements for each process and high coordination requirements, especially the synchronous control requirements for the opening and closing movement of the single-side opening and closing side mold and the deflection and lifting movement of the bottom mold.

[0003] The existing mechanism for achieving synchronous movement of the bottom mold and the moving side mold is generally a composite mechanism formed by a cylindrical space cam and a space connecting rod mechanism. The space connecting rod mechanism realizes the deflection of the bottom mold, and the deflected bottom mold is synchronously lifted and lowered under the drive of the cylindrical space cam. Mechanism advantages: simple mechanism and few moving parts. Disadvantages: 1) The design and processing accuracy of the cam flange or groove profile of the cylindrical space cam are high, the installation and positioning of the cam is difficult, and the rotor is easy to get stuck; 2) The contact surface between the rotor and the cam profile is easy to form point contact, the compressive stress is large, the rotor is easy to be damaged or the cam profile surface is easy to wear; 3) Due to the limitation of space size, the cam pressure angle is usually large, and similarly, the rotor is easy to be damaged or the cam profile surface is easy to wear. Summary of the invention

[0004] The purpose of the present invention is to provide a combined connecting rod mechanism for linking a side mold and a bottom mold of a bottle blowing machine, which has a simple structure and a small dynamic load, can effectively reduce the vibration and impact of the mechanism, reduce the wear of parts, can accurately control the movement of the bottom mold, enhance the movement stability and reliability of the bottle blowing machine, and improve the high-speed performance of the whole machine.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A combined connecting rod mechanism for linking a motorized side mold and a bottom mold for bottle blowing, comprising a mold frame bracket, a fixed side mold, a movable side mold, a side mold swing arm, a side mold connecting rod, a side mold swing shaft, a side mold rotor arm, a side mold cam rotor, a bottom mold bracket, a bottom mold, a bottom mold swing arm, a bottom mold connecting rod, a space connecting rod and a bottom mold guide rail;

[0007] The side mold cam rotor is rotatably arranged on the side mold rotor arm around its own axis, and is used to drive the side mold rotor arm to swing under the drive of the side mold cam. The side mold rotor arm and the side mold swing arm are both fixedly connected to the side mold swing shaft rotatably arranged on the mold frame bracket around its own axis. The two ends of the side mold connecting rod are respectively rotatably connected to the side mold swing arm and the movable side mold rotatably connected to the mold frame bracket. When the side mold rotor arm swings, it is used to drive the movable side mold to open and close relative to the fixed side mold fixedly connected to the mold frame bracket.

[0008] The bottom mold bracket is rotatably connected to the mold frame bracket, the bottom mold swing arm is fixedly connected to the side mold swing shaft or the movable side mold, the two ends of the bottom mold connecting rod are respectively rotatably connected to the bottom mold swing arm and the bottom mold bracket, and the two ends of the space connecting rod are respectively hinged to the mold frame bracket and the bottom mold through the spherical surface of the joint bearing fixedly connected thereto; the bottom mold can slide on the bottom mold guide rail fixedly connected to the bottom mold bracket, and when the side mold rotor arm swings, it is used to drive the bottom mold to deflect and lift;

[0009] The linkage mechanism composed of the bottom mold swing arm and the side mold rotor arm or the movable side mold fixedly connected thereto, the bottom mold bracket, the bottom mold connecting rod, and the mold frame bracket is a first planar four-bar linkage mechanism;

[0010] The connecting rod mechanism composed of the bottom mold bracket and the bottom mold guide rail fixed thereon, the bottom mold, the spatial connecting rod, and the mold frame bracket is a type of spatial double swing slider mechanism; wherein the movement plane of the bottom mold bracket is perpendicular to the movement plane of the bottom mold lifting;

[0011] The first planar four-bar linkage mechanism and the spatial double swing slider mechanism are connected in series to form a series-type combined link type bottom mold deflection lifting mechanism;

[0012] The connecting rod mechanism composed of the movable side mold, the side mold connecting rod, the side mold swing arm and the side mold rotor arm fixedly connected to the side mold swing shaft, the mold frame bracket and the fixed side mold fixed thereto is a second planar four-bar connecting rod mechanism;

[0013] The combination of the series-type combined link type bottom mold deflection lifting mechanism and the second planar four-link mechanism constitutes a combined link mechanism for linking the bottle blowing motorized side mold with the bottom mold.

[0014] Preferably, one of the bottom mold and the movable side mold / fixed side mold is provided with a wedge-shaped ring groove, and the other is provided with a wedge-shaped clamping ring for clamping into the wedge-shaped ring groove;

[0015] At the initial stage of mold opening, the side mold rotor arm drives the movable side mold to rotate away from the fixed side mold, and at the same time drives the bottom mold to rotate away from the fixed side mold, until the wedge-shaped ring groove and the wedge-shaped clamping ring are completely separated, and the serial combined connecting rod bottom mold deflection lifting mechanism controls the displacement of the bottom mold in the vertical direction to be smaller than the gap between the wedge-shaped clamping ring and the wedge-shaped ring groove, forming an approximate rest period of the bottom mold movement in the vertical direction;

[0016] In the later stage of mold closing, the side mold rotor arm drives the movable side mold to rotate close to the fixed side mold, and at the same time drives the bottom mold to rotate close to the fixed side mold, after the wedge-shaped clamping ring enters the wedge-shaped ring groove until it is completely engaged, the serial combined connecting rod bottom mold deflection lifting mechanism controls the displacement of the bottom mold in the vertical direction to be smaller than the gap between the wedge-shaped clamping ring and the wedge-shaped ring groove, forming an approximate rest period of the bottom mold movement in the vertical direction;

[0017] In the middle and late stages of mold opening, the series-type combined connecting rod bottom mold deflection and lifting mechanism is used to control the bottom mold to rotate away from the fixed edge mold and to descend in the vertical direction with a large displacement;

[0018] In the early and middle stages of mold closing, the series-type combined connecting rod bottom mold deflection and lifting mechanism is used to control the bottom mold to rotate close to the fixed edge mold and rise in a large displacement in the vertical direction.

[0019] Preferably, the movable side mold is rotatably arranged on the mold frame bracket around a first axis, and the bottom mold bracket is rotatably arranged on the mold frame bracket around a second axis, the second axis is parallel to the first axis, and both extend in the vertical direction.

[0020] Preferably, when the side mold rotor arm swings in the positive direction, it is used to drive the movable side mold to rotate away from the fixed side mold, and drive the bottom mold to rotate away from the fixed side mold, and the spatial connecting rod is used to synchronously drive the bottom mold to descend;

[0021] When the side mold rotor arm swings in the reverse direction, it is used to drive the movable side mold to rotate close to the fixed side mold, and drive the bottom mold to rotate close to the fixed side mold. The spatial connecting rod is used to synchronously drive the bottom mold to rise.

[0022] More preferably, the lower end of the spatial connecting rod is spherically hinged on the mold frame support through the joint bearing, and the upper end of the spatial connecting rod is spherically hinged on the bottom mold through the joint bearing.

[0023] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the present invention provides a combined connecting rod mechanism for linking the motorized side mold and the bottom mold of a bottle blowing machine, which is formed by connecting the first plane four-bar mechanism and the space double swing slider mechanism in series, and then forming a series-type combined connecting rod type bottom mold deflection lifting mechanism combined with the second plane four-bar mechanism. The connection between the components is a sliding pair, a rotating pair or a spherical pair. The combined connecting rod mechanism for linking the motorized side mold and the bottom mold of the bottle blowing machine has a simple structure and a small dynamic load, which can effectively reduce the vibration and impact of the mechanism, reduce the wear of parts, can accurately control the movement of the bottom mold, enhance the movement stability and reliability of the bottle blowing machine, and improve the high-speed performance of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 The structure of the device of the present invention is shown in FIG. Figure 1 ;

[0025] Attached Figure 2 The structure of the device of the present invention is shown in FIG. Figure 2 ;

[0026] Attached Figure 3 It is a schematic diagram of the changes in the vertical displacement of the bottom mold, the opening and closing angle of the movable side mold, and the deflection angle of the bottom mold as the side mold rotor arm swings.

[0027] Among them: 1. mold frame bracket; 2. fixed side mold; 3. movable side mold; 4. side mold swing arm; 5. side mold connecting rod; 6. side mold swing shaft; 7. side mold rotor arm; 8. side mold cam rotor; 9. bottom mold bracket; 10. bottom mold; 11. bottom mold swing arm; 12. bottom mold connecting rod; 13. space connecting rod; 14. bottom mold guide rail. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0029] See also Figure 1-2 As shown, the above-mentioned combined connecting rod mechanism for linking the motorized side mold and the bottom mold of the bottle blowing comprises a mold frame bracket 1, a fixed side mold 2, a movable side mold 3, a side mold swing arm 4, a side mold connecting rod 5, a side mold swing shaft 6, a side mold rotor arm 7, a side mold cam rotor 8, a bottom mold bracket 9, a bottom mold 10, a bottom mold swing arm 11, a bottom mold connecting rod 12, a space connecting rod 13 and a bottom mold guide rail 14. The movable side mold 3 is rotatable around the first axis direction and is arranged on the mold frame bracket 1, and the fixed side mold 2 is fixedly arranged on the mold frame bracket 1. The movable side mold 3 rotates close to or away from the fixed side mold 2 for mutually coordinated mold opening and closing.

[0030] In the bottom mold 10, the movable side mold 3 / fixed side mold 2, one is provided with a wedge-shaped ring groove, and the other is provided with a wedge-shaped clamping ring for clamping into the wedge-shaped ring groove. Here, the bottom mold 10 is regarded as one alone, and the movable side mold 3 and the fixed side mold 2 are regarded as the other as a whole.

[0031] The side mold cam rotor 8 is rotatable around its own axis and is arranged on the side mold rotor arm 7, and is used to drive the rotor arm of the side mold 3 to swing under the drive of the side mold cam. The side mold rotor arm 7 and the side mold swing arm 4 are both fixedly connected to the side mold swing shaft 6 which is rotatable around its own axis and is arranged on the mold frame bracket 1, that is, the side mold rotor arm 7 and the side mold swing arm 4 can rotate synchronously around the axis of the side mold swing shaft 6. In this embodiment, the axis of the side mold swing shaft 6 is parallel to the first axis. The two ends of the side mold connecting rod 5 are respectively hinged to the side mold swing arm 4 and the movable side mold 3 which can be cylindrically hinged and rotated on the mold frame bracket 1. When the side mold rotor arm 7 swings (that is, swings around the axis of the side mold swing shaft 6), it is used to drive the movable side mold 3 to open and close relative to the fixed side mold 2.

[0032] The bottom mold support 9 is rotatably connected to the mold frame support 1. In the present embodiment, the bottom mold support 9 is rotatably arranged on the mold frame support 1 around the second axis, and the second axis is parallel to the first axis. The bottom mold swing arm 11 is fixedly connected to the side mold swing shaft 6 or the movable side mold 3, and the two ends of the bottom mold connecting rod 12 are respectively hinged to the bottom mold swing arm 11 and the bottom mold support 9 cylindrical surface. Through this arrangement, when the side mold rotor arm 7 swings, the bottom mold support 9 is driven to rotate around the second axis through the bottom mold swing arm 11 and the bottom mold connecting rod 12. The two ends of the spatial connecting rod 13 are respectively hinged to the mold frame support 1 and the bottom mold 10 through the spherical surface of the joint bearing, and the two ends of the spatial connecting rod 13 are respectively fixedly connected to the two joint bearings. The bottom mold 10 can slide on the bottom mold guide rail 14 fixedly connected to the bottom mold support 9. Through this arrangement, when the side mold rotor arm 7 swings, the bottom mold support 9 is driven to rotate around the second axis through the bottom mold swing arm 11 and the bottom mold connecting rod 12, so that the bottom mold support 9 rotates close to or away from the hinge point between the spatial connecting rod 13 and the mold frame support 1, and the bottom mold 10 is driven to perform synchronous lifting and lowering motion under the drive of the spatial connecting rod 13. When the side mold rotor arm 7 swings (i.e., swings around the axis of the side mold swing shaft 6), it is used to drive the bottom mold 10 to perform deflection lifting and lowering motion.

[0033] See also Figure 1 As shown, in this embodiment, the lower end of the spatial connecting rod 13 is spherically hinged on the mold frame support 1 through a joint bearing, and the upper end of the spatial connecting rod 13 is spherically hinged on the bottom end of the bottom mold 10 through a joint bearing.

[0034] When the side mold rotor arm 7 swings forward, it is used to drive the movable side mold 3 to rotate away from the fixed side mold 2, and drive the bottom mold 10 to rotate away from the fixed side mold 2, and the spatial connecting rod 13 is used to synchronously drive the bottom mold 10 to descend;

[0035] When the side mold rotor arm 7 swings in the reverse direction, it is used to drive the movable side mold 3 to rotate close to the fixed side mold 2, and drive the bottom mold 10 to rotate close to the fixed side mold 2. The spatial connecting rod 13 is used to synchronously drive the bottom mold 10 to rise. The side mold swing arm 4 and the side mold rotor arm 7 are both fixedly connected to the side mold swing shaft 6, and the three form a whole.

[0036] The linkage mechanism composed of the bottom mold swing arm 11 and the side mold rotor arm 7 (through the side mold swing shaft 6) or the movable side mold 3, the bottom mold bracket 9, the bottom mold connecting rod 12, and the mold frame bracket 1 is a first planar four-bar linkage.

[0037] The connecting rod mechanism composed of the bottom mold support 9 and the bottom mold guide rail 14 fixed thereon, the bottom mold 10, the spatial connecting rod 13, and the mold frame support 1 is a type of spatial double swing slider mechanism. Among them, the movement plane of the bottom mold support 9 and the movement plane of the bottom mold 10 are perpendicular to each other. The movement plane of the bottom mold support 9 is a horizontal plane, and the movement plane of the bottom mold 10 is a vertical plane.

[0038] The series connection of the first planar four-bar linkage and the spatial double swing slider mechanism forms a series-type combined-linkage bottom mold deflection and lifting mechanism.

[0039] The connecting rod mechanism consisting of the movable side mold 3, the side mold connecting rod 5, the side mold swing arm 4 and the side mold rotor arm 7 fixedly connected to the side mold swing shaft 6, the mold frame bracket 1 and the fixed side mold 2 fixedly connected thereto is a second planar four-bar linkage.

[0040] The combination of the series-type combined connecting rod type bottom mold deflection lifting mechanism and the second plane four-link mechanism constitutes a combined connecting rod mechanism for linking the motorized side mold and the bottom mold for bottle blowing.

[0041] At the initial stage of mold opening, the side mold rotor arm 7 drives the movable side mold 3 to gradually rotate away from the fixed side mold 2, and at the same time drives the bottom mold 10 to gradually rotate away from the fixed side mold 2, until the wedge-shaped ring groove and the wedge-shaped clamping ring are completely separated, and the above-mentioned series-type combined connecting rod type bottom mold deflection lifting mechanism controls the displacement of the bottom mold 10 in the vertical direction to be smaller than the gap between the wedge-shaped clamping ring and the wedge-shaped ring groove, forming an approximate rest period of the bottom mold 10 in the vertical direction;

[0042] In the later stage of mold closing, the movable side mold 3 is driven by the side mold rotor arm 7 to gradually rotate close to the fixed side mold 2, and at the same time drives the bottom mold 10 to gradually rotate close to the fixed side mold 2. After the wedge-shaped retaining ring enters the wedge-shaped ring groove until it is fully engaged, the above-mentioned series-type combined connecting rod type bottom mold deflection and lifting mechanism controls the displacement of the bottom mold 10 in the vertical direction to be smaller than the gap between the wedge-shaped retaining ring and the wedge-shaped ring groove, forming an approximate rest period of the bottom mold 10 movement in the vertical direction.

[0043] In the middle and late stages of mold opening, the serial combined connecting rod bottom mold deflection lifting mechanism is used to control the bottom mold 10 to rotate away from the fixed edge mold 2 and to descend to the lowest point with a large displacement in the vertical direction; and there is no interference with the bottle taking movement of the bottle taking mechanism;

[0044] In the early and middle stages of mold closing, the serial combined connecting rod bottom mold deflection lifting mechanism is used to control the bottom mold 10 to rotate close to the fixed edge mold 2 and to rise in the vertical direction with a large displacement until the wedge-shaped clamping ring can enter the wedge-shaped ring groove.

[0045] See also Figure 3As shown, the X-axis is the rotation angle of the bottle blowing machine, the Y1-axis is the displacement of the bottom mold 10 in the vertical direction, the Y2-axis is the opening and closing angle of the movable side mold 3 and the deflection angle of the bottom mold 10 (relative to the deflection angle around the first axis center line), the a1 line is the displacement curve of the bottom mold 10 in the vertical direction, the a2 line is the opening and closing angle curve of the movable side mold 3, the a3 line is the deflection angle curve of the bottom mold 10 (relative to the deflection angle curve around the first axis center line), O is the starting point of mold opening, A is the point where the wedge-shaped retaining ring is separated from the wedge-shaped ring groove, B is the end point of mold opening, C is the point where the wedge-shaped retaining ring enters the wedge-shaped ring groove, D is the end point of mold closing, E is the lowest point of the bottom mold 10, F is the starting point of the upper end of the bottom mold 10, G is the maximum opening angle of the movable side mold 3, H is the maximum deflection angle of the bottom mold 10, and J is the opening angle of the movable side mold 3 when the wedge-shaped retaining ring is separated from the wedge-shaped ring groove or enters the wedge-shaped ring groove. Figure 3 It can be seen that in the early stage of mold opening (OA segment) and the late stage of mold closing (CD segment), with the swing of the side mold rotor arm 7, the displacement change of the bottom mold 10 in the vertical direction is very small, while in the middle and late stages of mold opening (AB segment as a whole) and the early and middle stages of mold closing (BC segment as a whole), with the swing of the side mold rotor arm 7, the bottom mold 10 has a large displacement change in the vertical direction. At the same time, it can be seen that the rotation angle of the bottom mold 10 is always smaller than the rotation angle of the movable side mold 3 to prevent collision and interference between the two.

[0046] The working process of this embodiment is described in detail below:

[0047] When the mold is opened, the side mold cam drives the rotor arm of the side mold 3 to swing forward, driving the movable side mold 3 to rotate away from the fixed side mold 2 to open the mold, and driving the bottom mold 10 to rotate away from the fixed side mold 2. Before the wedge-shaped clamping ring is separated from the wedge-shaped ring groove (OA section), the bottom mold 10 is in a nearly resting period of vertical movement. After the wedge-shaped clamping ring is separated from the wedge-shaped ring groove, the bottom mold 10 will drop a large displacement while rotating (AB section) until the mold opening is completed;

[0048] When closing the mold, the side mold cam drives the rotor arm of the side mold 3 to swing in the opposite direction, driving the movable side mold 3 to rotate close to the fixed side mold 2 for closing the mold, and driving the bottom mold 10 to rotate close to the fixed side mold 2. The bottom mold 10 will rise a large displacement while rotating (BC section). As the side mold rotor arm 7 continues to swing, after the wedge-shaped retaining ring enters the wedge-shaped ring groove (CD section), the bottom mold 10 is in an approximate rest period of vertical movement until the mold closing is completed.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined connecting rod mechanism for the linkage between a motorized side mold and a bottom mold for bottle blowing, comprising a mold frame bracket, a fixed side mold, a movable side mold, a side mold swing arm, a side mold connecting rod, a side mold swing shaft, a side mold rotor arm, a side mold cam rotor, a bottom mold bracket, a bottom mold, a bottom mold swing arm, a bottom mold connecting rod, a space connecting rod and a bottom mold guide rail; The side mold cam rotor is rotatably arranged on the side mold rotor arm around its own axis, and is used to drive the side mold rotor arm to swing under the drive of the side mold cam. The side mold rotor arm and the side mold swing arm are both fixedly connected to the side mold swing shaft rotatably arranged on the mold frame bracket around its own axis. The two ends of the side mold connecting rod are respectively rotatably connected to the side mold swing arm and the movable side mold rotatably connected to the mold frame bracket. When the side mold rotor arm swings, it is used to drive the movable side mold to open and close relative to the fixed side mold fixedly connected to the mold frame bracket. Features: The bottom mold bracket is rotatably connected to the mold frame bracket, the bottom mold swing arm is fixedly connected to the side mold swing shaft or the movable side mold, the two ends of the bottom mold connecting rod are respectively rotatably connected to the bottom mold swing arm and the bottom mold bracket, and the two ends of the space connecting rod are respectively hinged to the mold frame bracket and the bottom mold through the spherical surface of the joint bearing fixedly connected thereto; the bottom mold can slide on the bottom mold guide rail fixedly connected to the bottom mold bracket, and when the side mold rotor arm swings, it is used to drive the bottom mold to deflect and lift; The linkage mechanism composed of the bottom mold swing arm and the side mold rotor arm or the movable side mold fixedly connected thereto, the bottom mold bracket, the bottom mold connecting rod, and the mold frame bracket is a first planar four-bar linkage mechanism; The connecting rod mechanism composed of the bottom mold bracket and the bottom mold guide rail fixed thereon, the bottom mold, the spatial connecting rod, and the mold frame bracket is a type of spatial double swing slider mechanism; wherein the movement plane of the bottom mold bracket is perpendicular to the movement plane of the bottom mold lifting; The first planar four-bar linkage mechanism and the spatial double swing slider mechanism are connected in series to form a series-type combined link type bottom mold deflection lifting mechanism; The connecting rod mechanism composed of the movable side mold, the side mold connecting rod, the side mold swing arm and the side mold rotor arm fixedly connected to the side mold swing shaft, the mold frame bracket and the fixed side mold fixed thereto is a second planar four-bar connecting rod mechanism; The combination of the series-type combined link type bottom mold deflection lifting mechanism and the second planar four-link mechanism constitutes a combined link mechanism for linking the bottle blowing motorized side mold with the bottom mold.

2. According to claim 1, a combined connecting rod mechanism for linking the motorized side mold and the bottom mold for bottle blowing is characterized in that: In the bottom mold and the movable side mold / fixed side mold, one is provided with a wedge-shaped ring groove, and the other is provided with a wedge-shaped clamping ring for clamping into the wedge-shaped ring groove. Here, the bottom mold is regarded as one alone, and the movable side mold and the fixed side mold are regarded as another as a whole. At the initial stage of mold opening, the side mold rotor arm drives the movable side mold to rotate away from the fixed side mold, and at the same time drives the bottom mold to rotate away from the fixed side mold, until the wedge-shaped ring groove and the wedge-shaped clamping ring are completely separated, and the serial combined connecting rod bottom mold deflection lifting mechanism controls the displacement of the bottom mold in the vertical direction to be smaller than the gap between the wedge-shaped clamping ring and the wedge-shaped ring groove, forming an approximate rest period of the bottom mold movement in the vertical direction; In the later stage of mold closing, the side mold rotor arm drives the movable side mold to rotate close to the fixed side mold, and at the same time drives the bottom mold to rotate close to the fixed side mold, after the wedge-shaped clamping ring enters the wedge-shaped ring groove until it is completely engaged, the serial combined connecting rod bottom mold deflection lifting mechanism controls the displacement of the bottom mold in the vertical direction to be smaller than the gap between the wedge-shaped clamping ring and the wedge-shaped ring groove, forming an approximate rest period of the bottom mold movement in the vertical direction; In the middle and late stages of mold opening, the series-type combined connecting rod bottom mold deflection and lifting mechanism is used to control the bottom mold to rotate away from the fixed edge mold and to descend in the vertical direction with a large displacement; In the early and middle stages of mold closing, the serial combined connecting rod bottom mold deflection and lifting mechanism is used to control the bottom mold to rotate close to the fixed edge mold and to rise in a larger displacement in the vertical direction.

3. The combined connecting rod mechanism for linking the motorized side mold and the bottom mold for bottle blowing according to claim 1 is characterized in that: The movable side mold is rotatably arranged on the mold frame bracket around a first axis, and the bottom mold bracket is rotatably arranged on the mold frame bracket around a second axis. The second axis is parallel to the first axis and both extend in a vertical direction.

4. The combined connecting rod mechanism for linking the motorized side mold and the bottom mold for bottle blowing according to claim 1 is characterized in that: When the side mold rotor arm swings in the positive direction, it is used to drive the movable side mold to rotate away from the fixed side mold, and drive the bottom mold to rotate away from the fixed side mold, and the spatial connecting rod is used to synchronously drive the bottom mold to descend; When the side mold rotor arm swings in the reverse direction, it is used to drive the movable side mold to rotate close to the fixed side mold, and drive the bottom mold to rotate close to the fixed side mold. The spatial connecting rod is used to synchronously drive the bottom mold to rise.

5. The combined connecting rod mechanism for linking the motorized side mold and the bottom mold for bottle blowing according to claim 4 is characterized in that: The lower end of the spatial connecting rod is hinged on the mold frame bracket through the spherical surface of the joint bearing, and the upper end of the spatial connecting rod is hinged on the bottom mold through the spherical surface of the joint bearing.

Images