WO2021068749A1 - 吹瓶机开合模与底模联动的全连杆式组合连杆机构 - Google Patents

吹瓶机开合模与底模联动的全连杆式组合连杆机构 Download PDF

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Publication number
WO2021068749A1
WO2021068749A1 PCT/CN2020/117283 CN2020117283W WO2021068749A1 WO 2021068749 A1 WO2021068749 A1 WO 2021068749A1 CN 2020117283 W CN2020117283 W CN 2020117283W WO 2021068749 A1 WO2021068749 A1 WO 2021068749A1
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WIPO (PCT)
Prior art keywords
mold
closing
bottom mold
opening
link
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PCT/CN2020/117283
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English (en)
French (fr)
Inventor
冯志华
刘丁丁
董腾中
张晓飞
吴书朋
Original Assignee
江苏新美星包装机械股份有限公司
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Application filed by 江苏新美星包装机械股份有限公司 filed Critical 江苏新美星包装机械股份有限公司
Priority to EP20874621.4A priority Critical patent/EP4043181B1/en
Publication of WO2021068749A1 publication Critical patent/WO2021068749A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/56—Opening, closing or clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/56—Opening, closing or clamping means
    • B29C49/5601—Mechanically operated, i.e. closing or opening of the mould parts is done by mechanic means
    • B29C49/5602—Mechanically operated, i.e. closing or opening of the mould parts is done by mechanic means using cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4236—Drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/56—Opening, closing or clamping means
    • B29C49/5601—Mechanically operated, i.e. closing or opening of the mould parts is done by mechanic means
    • B29C49/5603—Mechanically operated, i.e. closing or opening of the mould parts is done by mechanic means using toggle mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/56—Opening, closing or clamping means
    • B29C49/5612—Opening, closing or clamping means characterised by bottom part movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/56—Opening, closing or clamping means
    • B29C49/5613—Opening, closing or clamping means characterised by connected mould part movement, e.g. bottom part movement is linked to mould half movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C2049/4879—Moulds characterised by mould configurations
    • B29C2049/4892—Mould halves consisting of an independent main and bottom part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles

Definitions

  • the invention relates to the technical field of bottle blowing machines, in particular to a full-link type combined link mechanism in which the opening and closing molds of the bottle blowing machine are linked with the bottom mold.
  • Bottle blowing machine is the key equipment for producing various plastic bottles for liquid packaging.
  • the preforms processed by the heating process are sent by the blow molding machine's preform feeding mechanism to the cavity that conforms to the shape of the plastic bottle to be processed.
  • the plastic bottle to be processed is finally formed. And it is taken away by the bottle taking mechanism and sent to the next process.
  • Each process of the bottle blowing machine has strict requirements and high requirements for mutual cooperation, especially for the synchronous control of the opening and closing movement of the mold opening and closing and the lifting movement of the bottom mold.
  • the existing mechanisms for realizing the synchronous movement of the bottom mold and the mold opening and closing mainly include two types: one is a cylindrical spatial cam mechanism; the other is a composite mechanism formed by a spatial four-bar linkage mechanism and a planar cam mechanism.
  • the advantages of the first type of mechanism simple mechanism and few moving parts. Disadvantages of the first type of mechanism: 1) The design and machining accuracy of the cam flange or groove profile of the cylindrical space cam are high, the installation and positioning of the cam are difficult, and the rotor is easy to jam; 2) The contact surface between the rotor and the cam profile is easy to form Point contact, the pressure stress is large, the rotor is easy to damage or the convex profile surface is easy to wear; 3) Due to the limitation of space size, usually the cam pressure angle is too large. Similarly, the rotor is easy to damage or the convex profile surface is easy to wear.
  • the advantages of the second type of mechanism are simpler than those of the first type of mechanism.
  • the purpose of the present invention is to provide a full-link type combined linkage mechanism that links the mold opening and closing of the bottle blowing machine with the bottom mold.
  • the mechanism is simple and the dynamic load is small, which can effectively reduce the vibration and impact of the mechanism and reduce the wear of parts. , To enhance the stability and reliability of the blow molding machine, and improve the high-speed performance of the whole machine.
  • a full-link type combined linkage mechanism for the linkage of the mold opening and closing of the bottle blowing machine with the bottom mold including a left mold base, a right mold base, a mold opening and closing swing arm, a left mold opening and closing link, and a right mold opening and closing link , Bottom mold, bottom mold guide rail, mold base support, bottom mold support, mold opening and closing cam rotor, mold opening and closing rotor arm, mold opening and closing swing shaft, auxiliary rotating arm, space link, bottom mold swing rod, bottom mold crank And bottom mold tie rod;
  • the mold opening and closing cam rotor is rotatably arranged on the mold opening and closing rotor arm in the direction of its own axis, and is used to drive the mold opening and closing rotor arm to swing under the drive of the mold opening and closing cam, so
  • the mold opening and closing rotor arm and the mold opening and closing swing arm are both fixedly connected to the mold opening and closing swing shaft that is rotatably arranged on the mold carrier support in the direction of its own axis.
  • Both ends of the mold connecting rod/right opening and closing mold connecting rod are respectively hinged with the opening and closing mold swing arm and the left mold base/right mold base cylindrically hinged and rotatable on the mold base support, the When the mold opening and closing rotor arm swings, it is used to drive the left mold base and the right mold base to open and close;
  • the auxiliary rotating arm is fixedly connected to the open and close mold rotor arm or the left mold base or the right mold base, and the two ends of the space link are respectively hinged to all through the joint bearing spherical surfaces fixed to it.
  • the bottom mold support is fixed on the mold base support
  • the bottom mold swing rod can rotate around an axis on the bottom mold support
  • One end of the crank is fixedly connected to the bottom mold swing rod, and the other end is cylindrically hinged to the bottom mold tie rod.
  • the bottom mold tie rod is cylindrically hinged to the bottom mold.
  • the bottom mold can be fixed on the bottom mold. Sliding on the bottom mold guide rail connected to the bottom mold bracket, when the mold opening and closing rotor arm swings, it is used to drive the bottom mold to move up and down;
  • the link mechanism formed by the space link and the bottom mold swing rod is a space four link mechanism; in the space four link mechanism, the open and close mold rotor arm or the left mold base or The movement plane of the right mold base and the auxiliary rotating arm fixedly connected thereto and the movement plane of the bottom mold swing rod are perpendicular to each other;
  • the connecting rod mechanism formed by the bottom mold crank, the bottom mold tie rod, the bottom mold, the bottom mold support, and the bottom mold guide rail fixedly connected thereto is a flat crank slider mechanism
  • the series connection of the spatial four-bar linkage mechanism and the planar crank-slider mechanism constitutes a series-type combined linkage bottom mold lifting mechanism
  • the formed linkage mechanism is a first plane four-bar linkage mechanism
  • the formed linkage mechanism is a second plane four-bar linkage mechanism
  • the combination of the tandem combined link type bottom mold lifting mechanism, the first planar four-bar linkage mechanism, and the second planar four-bar linkage mechanism forms a linkage between the opening and closing molds of the blowing machine and the bottom mold Full-link combined link mechanism.
  • the angle between the bottom mold swing rod and the space connecting rod is an acute angle
  • the included angle between the auxiliary rotating arm and the space connecting rod is an obtuse angle
  • the bottom mold swing The angle between the rod and the space link is an obtuse angle
  • the angle between the auxiliary pivot arm and the space link is an acute angle
  • the angle between the bottom mold swing rod and the space link is an obtuse angle, and the angle between the auxiliary rotating arm and the space link is an acute angle; in the late mold clamping stage, the bottom mold swing The angle between the rod and the space link is an acute angle, and the angle between the auxiliary pivot arm and the space link is an obtuse angle;
  • the bottom mold crank and the bottom mold pull rod form an approximate linear form with an included angle between 170° and 180°.
  • one is provided with a wedge-shaped ring groove, and the other is provided with a wedge-shaped snap ring for clamping into the wedge-shaped ring groove ;
  • the series-type combined link type bottom mold lifting mechanism has a high sensitivity state and a low sensitivity state
  • the tandem combined link bottom mold lifting mechanism is in the low sensitivity state, and the left mold base and the right mold base are gradually opened by the mold opening and closing rotor arm until the Before the wedge-shaped ring groove is completely separated from the wedge-shaped snap ring, the tandem combined link type bottom mold lifting mechanism controls the displacement of the bottom mold to be smaller than the gap between the wedge-shaped snap ring and the wedge-shaped ring groove , Forming the approximate resting period of the bottom mold movement;
  • the tandem combined link bottom mold lifting mechanism In the later stage of mold clamping, the tandem combined link bottom mold lifting mechanism is in the low sensitivity state, the left mold base and the right mold base are gradually closed by the mold opening and closing rotor arm, and the wedge card After the ring enters the wedge-shaped ring groove until it is fully aligned, the tandem-type combined link type bottom mold lifting mechanism controls the bottom mold to produce less displacement than the wedge-shaped snap ring and the wedge-shaped ring groove.
  • the gap forms the approximate resting period of the bottom mold movement;
  • the tandem combined link type bottom mold lifting mechanism In the middle stage of mold opening, the tandem combined link type bottom mold lifting mechanism is in the high-sensitivity state, and is used to control the bottom mold to drop by a large displacement;
  • the series combined link type bottom mold lifting mechanism is in the high-sensitivity state, and is used to control the rising displacement of the bottom mold.
  • the tandem combined link type bottom mold lifting mechanism controls the movement of the bottom mold and the movement of the bottle taken by the bottle taking mechanism without geometric interference
  • tandem type combined link type bottom mold lifting mechanism controls the movement of the bottom mold and the movement of the preforms sent by the blank feeding mechanism without geometric interference.
  • the included angle between the bottom mold swing rod and the bottom mold crank is ⁇ , where 0° ⁇ 180°.
  • the present invention is a full-link type combined linkage mechanism with a linkage between the opening and closing molds of the blowing machine and the bottom mold, which includes a type of spatial four-bar linkage.
  • the mechanism is connected in series with a type of planar crank slider mechanism and combined with two sets of planar four-bar linkage mechanisms, and the whole mechanism is a low-assist mechanism. That is: the movement of the bottom mold on the bottom mold rail constitutes a sliding pair, and the connections of other parts are cylindrical or spherical hinge connections, which are rotating pairs or spherical pairs. Therefore, the full-link combined linkage mechanism has a low-back mechanism It usually has the advantages of simple structure, easy manufacturing, reliable work, strong load-bearing capacity, and large transmission power.
  • Figure 1 is a structural schematic diagram of the device of the present invention.
  • Figure 2 is the second structural diagram of the device of the present invention.
  • Fig. 3 is a schematic diagram of the vertical displacement of the bottom mold and the change of the opening and closing angle of the mold opening and closing with the swing of the rotor arm of the mold opening and closing.
  • the above-mentioned full-link type combined linkage mechanism for the linkage of the mold opening and closing of the blowing machine and the bottom mold includes a left mold base 1, a right mold base 2, a mold opening and closing swing arm 3, and a left mold base Mold opening and closing link 18, right opening and closing mold link 4, bottom mold 5, bottom mold guide 6, mold base support 7, bottom mold support 8, mold opening and closing cam rotor 9, mold opening and closing rotor arm 10, opening and closing
  • the left mold base 1 and the right mold base 2 are both rotatably arranged on the mold base support 7 around the first axis 17, and are used for opening and closing molds in cooperation with each other.
  • the left mold base 1 and the right mold base 2 one is provided with a wedge-shaped ring groove, and the other is provided with a wedge-shaped snap ring for clamping into the wedge-shaped ring groove.
  • the bottom mold 5 is regarded as one alone, and the entire left mold base 1 and the right mold base 2 are regarded as the other.
  • the mold opening and closing cam rotor 9 is rotatably arranged on the mold opening and closing rotor arm 10 in the direction of its own axis.
  • the direction of the axis of the mold opening and closing cam rotor 9 is parallel to the first shaft 17 , And all extend along the vertical direction.
  • the mold opening and closing cam rotor 9 is used to drive the mold opening and closing rotor arm 10 to swing.
  • the mold opening and closing rotor arm 10 and the mold opening and closing swing arm 3 are both fixedly connected to the mold opening and closing swing shaft 11 provided on the mold carrier 7 so as to rotate around its own axis.
  • the opening and closing The direction of the axis of the pendulum shaft 11 is parallel to the first shaft 17, and both extend in the vertical direction.
  • the two ends of the left mold opening and closing link 18 are respectively cylindrically hinged with the mold opening and closing swing arm 3 and the left mold base 1 that can be pivotally pivoted on the mold base support 7, and the two ends of the right mold opening and closing link 4 are respectively It is cylindrically hinged with the swing arm 3 for opening and closing the mold and the right mold base 2 which can be pivotally pivoted on the mold base support 7.
  • the left mold opening and closing link 18 and the right mold opening and closing link 18 4 Relatively open, drive the left mold base 1 and the right mold base 2 to relatively close and close the mold;
  • the mold opening and closing swing shaft 11 swings in the opposite direction (the mold opening and closing swing arm 3 rotates away from the left mold base 1 and the right mold base 2),
  • the left mold opening and closing link 18 and the right mold opening and closing link 4 are relatively close to each other, and drive the left mold base 1 and the right mold base 2 to relatively open molds.
  • the auxiliary rotating arm 12 is fixedly connected to the mold opening and closing rotor arm 10 or the left mold base 1 or the right mold base 2, and the two ends of the space link 13 are respectively hinged to the auxiliary rotating arm 12 and the bottom mold swinging rod 14 through joint bearings.
  • the two ends of the space connecting rod 13 are respectively fixedly connected with two joint bearings.
  • the bottom mold support 8 is fixed on the mold base support 7, and the bottom mold swing rod 14 can rotate around the bottom mold support 8 on an axis.
  • One end of the bottom mold crank 15 is fixedly connected to the bottom mold swing rod 14, and the other end is cylindrically hinged.
  • the bottom mold tie rod 16 is hinged on the bottom mold 5 with a cylindrical surface.
  • the bottom mold 5 can slide up and down on the bottom mold guide 6 fixedly connected to the bottom mold support 8.
  • the mold opening and closing rotor arm 10 swings (that is, it swings around the direction of the axis of the mold opening and closing swing shaft 11)
  • the bottom mold 5 is driven to move up and down.
  • the included angle between the bottom mold swing rod 14 and the bottom mold crank 15 is ⁇ , where 0° ⁇ 180°.
  • the left end of the space link 13 is hinged to the auxiliary arm 12 through a spherical joint bearing
  • the right end of the space link 13 is hinged to the upper end of the bottom mold swing rod 14 through a spherical joint bearing
  • the lower end of the bottom mold crank 15 It is fixedly connected to the lower end of the bottom mold swing rod 14.
  • the lower end of the bottom mold swing rod 14 is hinged on the bottom mold bracket 8, that is, the lower end of the bottom mold swing rod 14 is fixedly connected with the lower end of the bottom mold crank 15 (bottom mold swing
  • the rod 14 and the bottom mold crank 15 are fixed to each other at an angle of 0°-90° to form a whole), and then the integral cylinder is hinged on the bottom mold support 8.
  • the upper cylindrical surface of the bottom mold crank 15 is hinged to the lower end of the bottom mold tie rod 16, and the upper end of the bottom mold tie rod 16 is cylindrically hinged to the bottom mold 5.
  • the bottom mold swing rod 14 and the bottom mold tie rod 16 are located in the same vertical plane, and their movements are also located in the vertical plane.
  • the link mechanism formed by the bottom mold swing rod 14 is a type of spatial four-link mechanism; in the spatial four-link mechanism, the mold opening and closing rotor arm 10 or the left mold base 1 or the right mold base 2 and the fixed coupling
  • the motion plane of the auxiliary rotating arm 12 on one of them and the motion plane of the bottom mold swing rod 14 are perpendicular to each other; the mold opening and closing rotor arm 10 or the left mold base 1 or the right mold base 2 and the fixed connection on one
  • the movement plane of the auxiliary rotating arm 12 is a horizontal plane
  • the movement plane of the bottom mold swing rod 14 is a vertical plane;
  • the spatial four-bar linkage mechanism is composed of a mold opening and closing rotor arm 10 and an auxiliary rotating arm 12 fixedly connected to it, a mold base support 7 and a bottom mold support 8 fixedly connected to it, and a space connection.
  • the link mechanism formed by the rod 13 and the bottom mold swing rod 14; the movement plane of the mold opening and closing rotor arm 10 and the auxiliary rotating arm 12 fixedly connected to it and the movement plane of the bottom mold swing rod 14 are perpendicular to each other;
  • the connecting rod mechanism consisting of the bottom mold crank 15, the bottom mold tie rod 16, the bottom mold 5, the bottom mold support 8 and the bottom mold guide 6 fixedly connected to it is a flat crank slider mechanism;
  • the left mold base 1, the left mold opening and closing link 18, the mold opening and closing swing arm 3, and the mold opening and closing rotor arm 10 fixedly connected to the mold opening and closing swing shaft 11, and the mold base support 7
  • the formed link mechanism is a first planar four-bar linkage; in the first planar four-bar linkage, the mold opening and closing swing arm 3 and the mold opening and closing rotor arm 10 are regarded as a whole.
  • a connecting rod mechanism composed of the right mold base 2, the right opening and closing mold connecting rod 4, the opening and closing mold swing arm 3, and the mold opening and closing rotor arm 10 fixedly connected to the mold opening and closing swing shaft 11, and the mold base support 7 It is a second planar four-bar linkage mechanism; in the second planar four-bar linkage mechanism, the mold opening and closing swing arm 3 and the mold opening and closing rotor arm 10 are regarded as a whole.
  • the space four-bar linkage mechanism is composed of the left mold base 1 and the auxiliary rotating arm 12 fixedly connected to it, the mold base support 7 and the bottom mold support 8 fixedly connected to it, and the space connecting The link mechanism formed by the rod 13 and the bottom mold swing rod 14; the movement plane of the left mold base 1 and the auxiliary rotating arm 12 fixedly connected to it and the movement plane of the bottom mold swing rod 14 are perpendicular to each other.
  • the spatial four-bar linkage mechanism consists of the right mold base 2 and the auxiliary rotating arm 12 fixedly connected to it, the mold base support 7 and the bottom mold support 8 fixedly connected to it, and the space connecting The link mechanism formed by the rod 13 and the bottom mold swing rod 14; the movement plane of the right mold base 2 and the auxiliary rotating arm 12 fixedly connected to it and the movement plane of the bottom mold swing rod 14 are perpendicular to each other.
  • the left end of the space link 13 is hinged to the auxiliary rotating arm 12 through a spherical joint bearing
  • the right end of the space link 13 is hinged to the lower end of the bottom mold swing rod 14 through a spherical joint bearing
  • the bottom mold crank 15 The lower end of the bottom mold swing rod 14 is fixedly connected to the upper end of the bottom mold swing rod 14, the upper end cylindrical surface of the bottom mold swing rod 14 is hinged on the bottom mold support 8, that is, the upper end of the bottom mold swing rod 14 is fixedly connected to the lower end of the bottom mold crank 15 (bottom The mold swing rod 14 and the bottom mold crank 15 are fixed to each other at an angle of 90°-180° to form a whole), and the integral cylinder is hinged on the bottom mold support 8.
  • the upper cylindrical surface of the bottom mold crank 15 is hinged to the lower end of the bottom mold tie rod 16, and the upper end of the bottom mold tie rod 16 is cylindrically hinged to the bottom mold 5.
  • the bottom mold swing rod 14 and the bottom mold tie rod 16 are located in the same vertical plane, and their movements are also located in the vertical plane.
  • the angle ⁇ between the bottom mold swing rod 14 and the space connecting rod 13 is an acute angle
  • the included angle ⁇ between the auxiliary rotating arm 12 and the space connecting rod 13 is an obtuse angle
  • the bottom mold swing rod 14 and the space are obtuse.
  • the angle ⁇ between the connecting rods 13 is an obtuse angle
  • the angle ⁇ between the auxiliary rotating arm 12 and the space connecting rod 13 is an acute angle
  • the angle ⁇ between the bottom mold swing rod 14 and the space link 13 is an obtuse angle, and the angle ⁇ between the auxiliary rotating arm 12 and the space link 13 is an acute angle; in the late mold clamping stage, the bottom mold swing rod 14 and the space The angle ⁇ between the connecting rods 13 is an acute angle, and the angle ⁇ between the auxiliary rotating arm 12 and the space connecting rod 13 is an obtuse angle;
  • the bottom mold crank 15 and the bottom mold tie rod 16 form an approximate linear form with an included angle of 170°-180°.
  • the tandem combined link bottom mold lifting mechanism has a high sensitivity state and a low sensitivity state:
  • ⁇ is an acute angle and ⁇ is an obtuse angle.
  • the tandem combined link bottom mold lifting mechanism is in a low sensitivity state; because the tandem combined link bottom mold lifting mechanism is in a low sensitivity state.
  • the bottom mold 5 In the low sensitivity state, when the mold opening and closing rotor arm 10 swings, the bottom mold 5 has a small displacement in the vertical direction; therefore, in the early stage of mold opening or the later stage of mold closing, before the wedge-shaped snap ring leaves the wedge-shaped ring groove or enters the wedge-shaped ring groove , The displacement produced by the bottom mold 5 is smaller than the gap between the wedge-shaped snap ring and the wedge-shaped ring groove;
  • ⁇ and ⁇ are both close to 90°, and the tandem combined link bottom mold lifting mechanism is in a high-sensitivity state; because the tandem combined link bottom mold lifting mechanism is at In a high-sensitivity state, when the mold opening and closing rotor arm 10 swings, the bottom mold 5 undergoes a relatively large displacement in the vertical direction, so that the bottom mold 5 can be rapidly lowered and quickly raised.
  • the bottom mold 5 can form an approximate resting period of movement in the initial stage of mold opening and the latter stage of mold clamping, so as to avoid collision and damage with the left mold base 1 and the right mold base 2.
  • the X axis is the rotation angle of the bottle blowing machine
  • the Y1 axis is the vertical displacement of the bottom mold 5
  • the solid line is the vertical displacement curve of the bottom mold 5
  • the Y2 axis is the left mold.
  • the opening and closing angle of the right mold base 2 of the frame 1 is the opening and closing angle curve of the left mold base 1, the right mold base 2, O is the starting point of mold opening, A is the end point of mold closing, B is the starting point of the upper end of the bottom mold 5, C
  • It is the angle between the left mold base 1 and the right mold base 2 when the wedge-shaped snap ring leaves the wedge-shaped ring groove or enters the wedge-shaped ring groove. It can be seen from Fig.
  • the tandem combined link bottom mold lifting mechanism is in a low sensitivity state, and the left mold base 1 and the right mold base 2 are gradually opened by the mold opening and closing rotor arm 10 until the wedge-shaped ring groove and the wedge-shaped snap ring are completely separated Previously, the tandem combined link bottom mold lifting mechanism controlled the displacement of the bottom mold 5 to be smaller than the gap between the wedge-shaped snap ring and the wedge-shaped ring groove, forming an approximate rest period of the bottom mold 5's movement;
  • the tandem combined link bottom mold lifting mechanism In the later stage of mold clamping, the tandem combined link bottom mold lifting mechanism is in a low sensitivity state.
  • the left mold base 1 and the right mold base 2 are gradually closed by the open and close rotor arm 10, and the wedge-shaped snap ring enters the wedge-shaped ring groove until it is completely aligned.
  • the displacement of the bottom mold 5 controlled by the tandem combination link bottom mold lifting mechanism is smaller than the gap between the wedge-shaped snap ring and the wedge-shaped ring groove, forming an approximate rest period of the bottom mold 5's movement;
  • tandem combined link bottom mold lifting mechanism In the middle of mold opening, the tandem combined link bottom mold lifting mechanism is in a high-sensitivity state, which is used to control the large displacement of bottom mold 5 down;
  • tandem combined link bottom mold lifting mechanism In the middle of mold clamping, the tandem combined link bottom mold lifting mechanism is in a high-sensitivity state, which is used to control the large displacement of the bottom mold 5 ascending.
  • tandem combination link bottom mold lifting mechanism controls the movement of the bottom mold 5 and the movement of the bottle taken by the bottle taking mechanism without geometric interference
  • tandem type combined link type bottom mold lifting mechanism controls the movement of the bottom mold 5 and the movement of the preforms sent by the blank feeding mechanism without geometric interference.
  • the mold opening and closing cam drives the mold opening and closing rotor arm 10 to swing positively, driving the mold opening and closing mold bases (left mold base 1 and right mold base 2) to open the molds.
  • the mold opening and closing mold bases left mold base 1 and right mold base 2
  • the mold opening and closing cam drives the mold opening and closing rotor arm 10 to swing positively, driving the mold opening and closing mold bases (left mold base 1 and right mold base 2) to open the molds.
  • the bottom mold lifting mechanism of the combined link type is in a low sensitivity state, and the bottom mold 5 is in the approximate resting period of motion.
  • the tandem combined link type bottom mold lifting mechanism will enter a high-sensitivity state.
  • the bottom mold 5 will drop by a large displacement until the mold opening is completed;
  • the mold opening and closing cam drives the mold opening and closing rotor arm 10 to swing in the opposite direction, driving the mold opening and closing mold bases (left mold base 1 and right mold base 2) to close the molds.
  • the bottom mold 5 will rise by a large displacement.
  • the tandem combined link bottom mold lifting mechanism enters a low-sensitivity state, after the wedge-shaped snap ring enters the wedge-shaped ring groove , The bottom mold 5 is in the approximate resting period of motion until the mold clamping is completed.

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Abstract

本发明公开了一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，驱动开合模开合运动的开合模转子臂，在驱动开合模做开合运动的同时，同步驱动底模做升降运动，使在两个相互垂直平面内的运动——开合模开合运动与底模升降运动精准配合，以实现底模升降运动与开合模开合运动的有效协同。经精确设计与计算后的全连杆式组合连杆机构，机构简单、运动精准、动载荷小，既可避免出现现有分离式底模机构运动配合精度偏低等缺点，又可克服现有底模联动机构所涉平面凸轮或空间凸轮等零部件加工、安装定位困难和凸轮机构凸轮与从动件间接触应力偏高、零部件磨损偏大等不足，可有效降低机构的振动、冲击与噪声，提高产品的使用寿命。

Description

吹瓶机开合模与底模联动的全连杆式组合连杆机构 技术领域
本发明涉及吹瓶机技术领域，特别涉及一种吹瓶机开合模与底模联动的全连杆式组合连杆机构。
背景技术
吹瓶机是生产各种液体包装用塑料瓶的关键设备。生产时，经加热工艺处理的瓶坯由吹瓶机送坯机构送至与所需加工塑料瓶外形一致的型腔内，经拉伸、吹压、冷却等工序，最终形成所需加工塑料瓶并经取瓶机构取走送入下道工序。吹瓶机各工序要求严格，相互配合要求高，尤其对开合模开合运动与底模升降运动的同步控制要求甚严。
现有的用于实现底模与开合模同步运动的机构主要有两类：一类是柱面空间凸轮机构；另一类是空间四连杆机构与平面凸轮机构形成的复合机构。
第一类机构优点：机构简单、运动零部件少。第一类机构缺点：1)柱面空间凸轮的凸轮凸缘或沟槽轮廓的设计、加工精度要求高，凸轮的安装定位难度大，转子易卡死；2)转子与凸轮轮廓接触面易形成点接触，压应力大，转子易损坏或凸轮廓面易磨损；3)受空间尺寸限制，通常凸轮压力角偏大，同样，转子易损坏或凸轮廓面易磨损。
第二类机构优点：空间四连杆机构与平面凸轮机构的设计、加工、安装较第一类机构简单。第二类机构缺点：受空间尺寸限制，通常凸轮压力角大，一是转子易损坏或凸轮廓面易磨损，二是传递到空间四连杆机构中的连杆的动载荷较大，受压时，连杆易失稳，直接影响吹瓶机整机的高速性能。
发明内容
本发明的目的是提供一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，机构简单，动载荷小，能有效降低机构的振动与冲击，减小零部件的磨损，增强吹瓶机的运动平稳性与可靠性，提高整机的高速性能。
为达到上述目的，本发明采用的技术方案是：
一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，包括左模架、右模架、开合模摆臂、左开合模连杆、右开合模连杆、底模、底模导轨、模架支架、底模支架、开合模凸轮转子、开合模转子臂、开合模摆轴、辅助转臂、空间连杆、底模摆杆、底模曲柄和底模拉杆；
所述开合模凸轮转子，可绕自身轴心线方向转动地设于所述开合模转子臂上，用于在开合模凸轮的驱动下，带动所述开合模转子臂摆动，所述开合模转子臂、所述开合模摆臂均固联于可绕自身轴心线方向转动地设于所述模架支架上的所述开合模摆轴上，所述左开合模连杆/右开合模连杆两端分别与所述开合模摆臂及可在所述模架支架上柱面铰接转动的所述左模架/右模架柱面铰接，所述开合模转子臂摆动时，用于驱动所述左模架和所述右模架做开合运动；
所述辅助转臂固联于所述开合模转子臂或所述左模架或所述右模架上，所述空间连杆两端分别通过固联于其上的关节轴承球面铰接于所述辅助转臂和所述底模摆杆上，所述底模支架固设于所述模架支架上，所述底模摆杆可绕所述底模支架上一轴转动，所述底模曲柄一端固联于所述底模摆杆上，另一端则柱面铰接于所述底模拉杆上，所述底模拉杆柱面铰接于所述底模上，所述底模，可在固联于所述底模支架上的所述底模导轨上滑动，所述开合模转子臂摆动时，用于驱动所述底模做升降运动；
由所述开合模转子臂或所述左模架或所述右模架及固联于其上的所述辅助转臂、所述模架支架及固联于其上的所述底模支架、所述空间连杆、所述底模摆杆所构成的连杆机构为空间四连杆机构；在所 述空间四连杆机构中，所述开合模转子臂或所述左模架或所述右模架及固联于其上的所述辅助转臂的运动平面与所述底模摆杆的运动平面相互垂直；
由所述底模曲柄、所述底模拉杆、所述底模、所述底模支架及固联于其上的所述底模导轨所构成的连杆机构为平面曲柄滑块机构；
由所述空间四连杆机构与所述平面曲柄滑块机构的串联，构成串联型组合连杆式底模升降机构；
由所述左模架、所述左开合模连杆、所述开合模摆臂及与其固联于所述开合模摆轴上的所述开合模转子臂、所述模架支架所构成的连杆机构为第一平面四连杆机构；
由所述右模架、所述右开合模连杆、所述开合模摆臂及与其固联于所述开合模摆轴上的所述开合模转子臂、所述模架支架所构成的连杆机构为第二平面四连杆机构；
由所述串联型组合连杆式底模升降机构与所述第一平面四连杆机构、所述第二平面四连杆机构的组合，形成所述吹瓶机开合模与底模联动的全连杆式组合连杆机构。
优选地，
开模初期，所述底模摆杆与所述空间连杆间的夹角为锐角，所述辅助转臂与所述空间连杆间的夹角为钝角；开模后期，所述底模摆杆与所述空间连杆间的夹角为钝角，所述辅助转臂与所述空间连杆间的夹角为锐角；
合模初期，所述底模摆杆与所述空间连杆间的夹角为钝角，所述辅助转臂与所述空间连杆间的夹角为锐角；合模后期，所述底模摆杆与所述空间连杆间的夹角为锐角，所述辅助转臂与所述空间连杆间的夹角为钝角；
所述底模位于上端起始点时，所述底模曲柄与所述底模拉杆成夹角为170°-180°之间的近似直线形态。
更优选地，在所述底模、所述左模架/右模架中，一者上设有楔 形环槽，另一者上则设有用于卡入所述楔形环槽中的楔形卡环；
所述串联型组合连杆式底模升降机构具有高灵敏度状态和低灵敏度状态；
开模初期，所述串联型组合连杆式底模升降机构处于所述低灵敏度状态，由所述开合模转子臂带动所述左模架与所述右模架逐渐张开，直至所述楔形环槽与所述楔形卡环完全脱离前，所述串联型组合连杆式底模升降机构控制所述底模产生的位移小于所述楔型卡环与所述楔型环槽间的间隙，形成所述底模运动的近似休止期；
合模后期，所述串联型组合连杆式底模升降机构处于所述低灵敏度状态，由所述开合模转子臂带动所述左模架与所述右模架逐渐闭合，所述楔形卡环进入所述楔形环槽后直至完全对合前，所述串联型组合连杆式底模升降机构控制所述底模产生的位移小于所述楔型卡环与所述楔型环槽间的间隙，形成所述底模运动的近似休止期；
开模中期，所述串联型组合连杆式底模升降机构处于所述高灵敏度状态，用于控制所述底模下降较大位移；
合模中期，所述串联型组合连杆式底模升降机构处于所述高灵敏度状态，用于控制所述底模上升较大位移。
更进一步优选地，
开模时，所述串联型组合连杆式底模升降机构控制所述底模运动与取瓶机构所取瓶子的运动无几何干涉；
合模时，所述串联型组合连杆式底模升降机构控制所述底模运动与送坯机构所送瓶坯的运动无几何干涉。
优选地，所述底模摆杆与所述底模曲柄之间的夹角为α，其中0°≤α≤180°。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：本发明一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，包括一类空间四连杆机构与一类平面曲柄滑块机构串联后与两组平面四 连杆机构的组合，整个机构为低副机构。即：底模在底模导轨上的运动构成滑动副，其它部件的连接都是柱面或球面铰链连接，为转动副或球面副，因此，该全连杆式组合连杆机构有低副机构通常具有的结构简单、制造容易、工作可靠、承受载荷能力强、传递动力大等优点。
附图说明
附图1为本发明装置的结构示意图一；
附图2为本发明装置的结构示意图二；
附图3为随着开合模转子臂的摆动，底模竖直位移和开合模开合角度的变化示意图。
其中：1、左模架；2、右模架；3、开合模摆臂；4、右开合模连杆；5、底模；6、底模导轨；7、模架支架；8、底模支架；9、开合模凸轮转子；10、开合模转子臂；11、开合模摆轴；12、辅助转臂；13、空间连杆；14、底模摆杆；15、底模曲柄；16、底模拉杆；17、第一轴；18、左开合模连杆。
具体实施方式
下面结合附图来对本发明的技术方案作进一步的阐述。
参见图1-2所示，上述一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，包括左模架1、右模架2、开合模摆臂3、左开合模连杆18、右开合模连杆4、底模5、底模导轨6、模架支架7、底模支架8、开合模凸轮转子9、开合模转子臂10、开合模摆轴11、辅助转臂12、空间连杆13、底模摆杆14、底模曲柄15和底模拉杆16。左模架1和右模架2均可绕第一轴17转动地设于模架支架7上，用于相互配合的开模合模。
在底模5、左模架1/右模架2中，一者上设有楔形环槽，另一者上则设有用于卡入该楔形环槽中的楔形卡环。这里，将底模5单独视为一者，将左模架1和右模架2整体视为另一者。
开合模凸轮转子9，可绕自身轴心线方向转动地的设于开合模转 子臂10上，在本实施例中，开合模凸轮转子9的轴心线方向平行于第一轴17，且均沿竖直方向延伸。在开合模凸轮的驱动下，开合模凸轮转子9用于带动开合模转子臂10摆动。开合模转子臂10、开合模摆臂3均固联于可绕自身轴心线方向转动地设于模架支架7上的开合模摆轴11上，在本实施例中，开合模摆轴11的轴心线方向平行于第一轴17，且均沿竖直方向延伸。左开合模连杆18的两端分别与开合模摆臂3及可在模架支架7上柱面铰接转动的左模架1柱面铰接，右开合模连杆4的两端分别与开合模摆臂3及可在模架支架7上柱面铰接转动的右模架2柱面铰接。开合模转子臂10摆动时(即绕开合模摆轴11的轴心线方向摆动)，驱动左模架1和右模架2做开合运动。
在本实施例中，开合模摆轴11正向摆动时(开合模摆臂3转动靠近左模架1和右模架2)，左开合模连杆18和右开合模连杆4相对张开，驱动左模架1和右模架2相对合拢合模；开合模摆轴11反向摆动时(开合模摆臂3转动远离左模架1和右模架2)，左开合模连杆18和右开合模连杆4相对靠近，驱动左模架1和右模架2相对张开开模。
辅助转臂12固联于开合模转子臂10或左模架1或右模架2上，空间连杆13两端分别通过关节轴承球面铰接于辅助转臂12和底模摆杆14上，空间连杆13的两端则分别与两个关节轴承固定连接。底模支架8固设于模架支架7上，底模摆杆14可绕底模支架8上一轴转动，底模曲柄15一端固联于底模摆杆14上，另一端则柱面铰接于底模拉杆16上，底模拉杆16柱面铰接于底模5上。底模5可在固联于底模支架8上的底模导轨6上上下滑动。开合模转子臂10摆动时(即绕开合模摆轴11的轴心线方向摆动)，驱动底模5做升降运动。底模摆杆14与底模曲柄15之间的夹角为α，其中0°≤α≤180°。
在本实施例中，空间连杆13的左端通过关节轴承球面铰接于辅助转臂12上，空间连杆13的右端通过关节轴承球面铰接于底模摆杆14的上端，底模曲柄15的下端固定连接在底模摆杆14的下端，底模摆杆14的下端柱面铰接在底模支架8上，即底模摆杆14的下端与 底模曲柄15的下端固定连接后(底模摆杆14与底模曲柄15以0°-90°间的一角度相互固定，形成一个整体)，再整体柱面铰接在底模支架8上。底模曲柄15的上端柱面铰接于底模拉杆16的下端，底模拉杆16的上端则柱面铰接于底模5上。底模摆杆14和底模拉杆16位于同一竖直平面内，两者的运动也位于该竖直平面内。
由开合模转子臂10或左模架1或右模架2及固联于其中一者上的辅助转臂12、模架支架7及固联于其上的底模支架8、空间连杆13、底模摆杆14所构成的连杆机构为一类空间四连杆机构；在该空间四连杆机构中，开合模转子臂10或左模架1或右模架2及固联于其中一者上的辅助转臂12的运动平面与底模摆杆14的运动平面相互垂直；开合模转子臂10或左模架1或右模架2及固联于其中一者上的辅助转臂12的运动平面为水平面，底模摆杆14的运动平面为竖直平面；
在本实施例中，该空间四连杆机构为由开合模转子臂10及固联于其上的辅助转臂12、模架支架7及固联于其上的底模支架8、空间连杆13、底模摆杆14所构成的连杆机构；开合模转子臂10及固联于其上的辅助转臂12的运动平面与底模摆杆14的运动平面相互垂直；
由底模曲柄15、底模拉杆16、底模5、底模支架8及固联于其上的底模导轨6所构成的连杆机构为一类平面曲柄滑块机构；
由上述空间四连杆机构与上述平面曲柄滑块机构的串联，形成一种串联型组合连杆式底模升降机构。
在本实施例中，由左模架1、左开合模连杆18、开合模摆臂3及与其固联于开合模摆轴11上的开合模转子臂10、模架支架7所构成的连杆机构为第一平面四连杆机构；在该第一平面四连杆机构中，开合模摆臂3和开合模转子臂10视为一个整体。由右模架2、右开合模连杆4、开合模摆臂3及与其固联于开合模摆轴11上的开合模转子臂10、模架支架7所构成的连杆机构为第二平面四连杆机构；在该第二平面四连杆机构中，开合模摆臂3和开合模转子臂10视为一个整体。
由上述串联型组合连杆式底模升降机构与上述第一平面四连杆机构、上述第二平面四连杆机构的组合，形成一种吹瓶机开合模与底模联动的全连杆式组合连杆机构。
在第二个实施例中，该空间四连杆机构为由左模架1及固联于其上的辅助转臂12、模架支架7及固联于其上的底模支架8、空间连杆13、底模摆杆14所构成的连杆机构；左模架1及固联于其上的辅助转臂12的运动平面与底模摆杆14的运动平面相互垂直。
在第三个实施例中，该空间四连杆机构为由右模架2及固联于其上的辅助转臂12、模架支架7及固联于其上的底模支架8、空间连杆13、底模摆杆14所构成的连杆机构；右模架2及固联于其上的辅助转臂12的运动平面与底模摆杆14的运动平面相互垂直。
在第四个实施例中，空间连杆13的左端通过关节轴承球面铰接于辅助转臂12上，空间连杆13的右端通过关节轴承球面铰接于底模摆杆14的下端，底模曲柄15的下端固定连接在底模摆杆14的上端，底模摆杆14的上端柱面铰接在底模支架8上，即底模摆杆14的上端与底模曲柄15的下端固定连接后(底模摆杆14与底模曲柄15以90°-180°间的一角度相互固定，形成一个整体)，再整体柱面铰接在底模支架8上。底模曲柄15的上端柱面铰接于底模拉杆16的下端，底模拉杆16的上端则柱面铰接于底模5上。底模摆杆14和底模拉杆16位于同一竖直平面内，两者的运动也位于该竖直平面内。
开模初期，底模摆杆14与空间连杆13间的夹角α为锐角，辅助转臂12与空间连杆13间的夹角β为钝角；开模后期，底模摆杆14与空间连杆13间的夹角α为钝角，辅助转臂12与空间连杆13间的夹角β为锐角；
合模初期，底模摆杆14与空间连杆13间的夹角α为钝角，辅助转臂12与空间连杆13间的夹角β为锐角；合模后期，底模摆杆14与空间连杆13间的夹角α为锐角，辅助转臂12与空间连杆13间的夹角β为钝角；
底模5位于上端起始点时，底模曲柄15与底模拉杆16成夹角为 170°-180°之间的近似直线形态。
通过这个设置，串联型组合连杆式底模升降机构具有高灵敏度状态和低灵敏度状态：
开模初期、合模后期，在上述两个期间中，α为锐角，β为钝角，串联型组合连杆式底模升降机构处于低灵敏度状态；由于串联型组合连杆式底模升降机构处于低灵敏度状态，开合模转子臂10摆动时，底模5在竖直方向位移很小；因此，在开模初期或合模后期，在楔形卡环脱离楔形环槽前或进入楔形环槽后，底模5产生的位移小于楔形卡环与楔形环槽之间的间隙；
开模中期、合模中期，在上述两个期间中，α和β均接近90°，串联型组合连杆式底模升降机构处于高灵敏度状态；由于串联型组合连杆式底模升降机构处于高灵敏度状态，开合模转子臂10摆动时，底模5在竖直方向发生较大的位移，实现底模5的快速下降和快速上升。通过对α和β的角度控制，使底模5在开模初期和合模后期形成运动的近似休止期，避免与左模架1和右模架2碰撞损坏。
参见图3所示，X轴为吹瓶机回转的角度，Y1轴为底模5在竖直方向上的位移，实线为底模5在竖直方向上的位移曲线，Y2轴为左模架1右模架2开合的角度，虚线为左模架1右模架2开合角度曲线，O为开模起始点，A为合模结束点，B为底模5上端起始点，C为楔形卡环脱离楔形环槽或进入楔形环槽时左模架1与右模架2的夹角。从图3中可以看出，在开模初期、合模后期，随着开合模转子臂10的摆动，底模5在竖直方向上位移变化很小，而在开模中期和合模中期，随着开合模转子臂10的摆动，底模5在竖直方向上具有较大的位移变化。
开模初期，串联型组合连杆式底模升降机构处于低灵敏度状态，由开合模转子臂10带动左模架1与右模架2逐渐张开，直至楔形环槽与楔形卡环完全脱离前，串联型组合连杆式底模升降机构控制底模5产生的位移小于楔型卡环与楔型环槽间的间隙，形成底模5运动的近似休止期；
合模后期，串联型组合连杆式底模升降机构处于低灵敏度状态，由开合模转子臂10带动左模架1与右模架2逐渐闭合，楔形卡环进入楔形环槽后直至完全对合前，串联型组合连杆式底模升降机构控制底模5产生的位移小于楔型卡环与楔型环槽间的间隙，形成底模5运动的近似休止期；
开模中期，串联型组合连杆式底模升降机构处于高灵敏度状态，用于控制底模5下降较大位移；
合模中期，串联型组合连杆式底模升降机构处于高灵敏度状态，用于控制底模5上升较大位移。
开模时，串联型组合连杆式底模升降机构控制底模5运动与取瓶机构所取瓶子的运动无几何干涉；
合模时，串联型组合连杆式底模升降机构控制底模5运动与送坯机构所送瓶坯的运动无几何干涉。
以下具体阐述下本实施例的工作过程：
开模时，开合模凸轮驱动开合模转子臂10正向摆动，带动开合模模架(左模架1和右模架2)开模，在楔形卡环脱离楔形环槽前，串联型组合连杆式底模升降机构处于低灵敏度状态，底模5处于运动的近似休止期，在楔形卡环脱离楔形环槽后，串联型组合连杆式底模升降机构将进入高灵敏度状态，底模5将下降较大位移，直至开模完成；
合模时，开合模凸轮驱动开合模转子臂10反向摆动，带动开合模模架(左模架1和右模架2)合模，串联型组合连杆式底模升降机构将进入高灵敏度状态，底模5将上升较大位移，随着开合模转子臂10的继续摆动，串联型组合连杆式底模升降机构进入低灵敏度状态，在楔形卡环进入楔形环槽后，底模5处于运动的近似休止期，直至合模完成。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟 悉此项技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。

Claims (6)

  1. 一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，包括左模架、右模架、开合模摆臂、左开合模连杆、右开合模连杆、底模、底模导轨、模架支架、底模支架、开合模凸轮转子、开合模转子臂、开合模摆轴、辅助转臂、空间连杆、底模摆杆、底模曲柄和底模拉杆；
    所述开合模凸轮转子，可绕自身轴心线方向转动地设于所述开合模转子臂上，用于在开合模凸轮的驱动下，带动所述开合模转子臂摆动，所述开合模转子臂、所述开合模摆臂均固联于可绕自身轴心线方向转动地设于所述模架支架上的所述开合模摆轴上，所述左开合模连杆/右开合模连杆两端分别与所述开合模摆臂及可在所述模架支架上柱面铰接转动的所述左模架/右模架柱面铰接，所述开合模转子臂摆动时，用于驱动所述左模架和所述右模架做开合运动；
    所述辅助转臂固联于所述开合模转子臂或所述左模架或所述右模架上，所述空间连杆两端分别通过固联于其上的关节轴承球面铰接于所述辅助转臂和所述底模摆杆上，所述底模支架固设于所述模架支架上，所述底模摆杆可绕所述底模支架上一轴转动，所述底模曲柄一端固联于所述底模摆杆上，另一端则柱面铰接于所述底模拉杆上，所述底模拉杆柱面铰接于所述底模上，所述底模，可在固联于所述底模支架上的所述底模导轨上滑动，所述开合模转子臂摆动时，用于驱动所述底模做升降运动；
    其特征在于：由所述开合模转子臂或所述左模架或所述右模架及固联于其上的所述辅助转臂、所述模架支架及固联于其上的所述底模支架、所述空间连杆、所述底模摆杆所构成的连杆机构为空间四连杆机构；在所述空间四连杆机构中，所述开合模转子臂或所述左模架或所述右模架及固联于其上的所述辅助转臂的运动平面与所述底模摆杆的运动平面相互垂直；
    由所述底模曲柄、所述底模拉杆、所述底模、所述底模支架及固联于其上的所述底模导轨所构成的连杆机构为平面曲柄滑块机构；
    由所述空间四连杆机构与所述平面曲柄滑块机构的串联，构成串联型组合连杆式底模升降机构；
    由所述左模架、所述左开合模连杆、所述开合模摆臂及与其固联于所述开合模摆轴上的所述开合模转子臂、所述模架支架所构成的连杆机构为第一平面四连杆机构；
    由所述右模架、所述右开合模连杆、所述开合模摆臂及与其固联于所述开合模摆轴上的所述开合模转子臂、所述模架支架所构成的连杆机构为第二平面四连杆机构；
    由所述串联型组合连杆式底模升降机构与所述第一平面四连杆机构、所述第二平面四连杆机构的组合，形成所述吹瓶机开合模与底模联动的全连杆式组合连杆机构；
    开模初期，所述底模摆杆与所述空间连杆间的夹角为锐角，所述辅助转臂与所述空间连杆间的夹角为钝角；开模后期，所述底模摆杆与所述空间连杆间的夹角为钝角，所述辅助转臂与所述空间连杆间的夹角为锐角；
    合模初期，所述底模摆杆与所述空间连杆间的夹角为钝角，所述辅助转臂与所述空间连杆间的夹角为锐角；合模后期，所述底模摆杆与所述空间连杆间的夹角为锐角，所述辅助转臂与所述空间连杆间的夹角为钝角；
    所述底模位于上端起始点时，所述底模曲柄与所述底模拉杆成夹角为170°-180°之间的近似直线形态；
    在所述底模、所述左模架/右模架中，一者上设有楔形环槽，另一者上则设有用于卡入所述楔形环槽中的楔形卡环；
    所述串联型组合连杆式底模升降机构具有高灵敏度状态和低灵敏度状态；
    开模初期，所述串联型组合连杆式底模升降机构处于所述低灵敏度状态，由所述开合模转子臂带动所述左模架与所述右模架逐渐张开，直至所述楔形环槽与所述楔形卡环完全脱离前，所述串联型组合连杆 式底模升降机构控制所述底模产生的位移小于所述楔型卡环与所述楔型环槽间的间隙，形成所述底模运动的近似休止期；
    合模后期，所述串联型组合连杆式底模升降机构处于所述低灵敏度状态，由所述开合模转子臂带动所述左模架与所述右模架逐渐闭合，所述楔形卡环进入所述楔形环槽后直至完全对合前，所述串联型组合连杆式底模升降机构控制所述底模产生的位移小于所述楔型卡环与所述楔型环槽间的间隙，形成所述底模运动的近似休止期；
    开模中期，所述串联型组合连杆式底模升降机构处于所述高灵敏度状态，用于控制所述底模下降较大位移；
    合模中期，所述串联型组合连杆式底模升降机构处于所述高灵敏度状态，用于控制所述底模上升较大位移；
    开模时，所述串联型组合连杆式底模升降机构控制所述底模运动与取瓶机构所取瓶子的运动无几何干涉；
    合模时，所述串联型组合连杆式底模升降机构控制所述底模运动与送坯机构所送瓶坯的运动无几何干涉；
    所述底模摆杆与所述底模曲柄之间的夹角为α，其中0°≤α≤180°。
  2. 一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，包括左模架、右模架、开合模摆臂、左开合模连杆、右开合模连杆、底模、底模导轨、模架支架、底模支架、开合模凸轮转子、开合模转子臂、开合模摆轴、辅助转臂、空间连杆、底模摆杆、底模曲柄和底模拉杆；
    所述开合模凸轮转子，可绕自身轴心线方向转动地设于所述开合模转子臂上，用于在开合模凸轮的驱动下，带动所述开合模转子臂摆动，所述开合模转子臂、所述开合模摆臂均固联于可绕自身轴心线方向转动地设于所述模架支架上的所述开合模摆轴上，所述左开合模连杆/右开合模连杆两端分别与所述开合模摆臂及可在所述模架支架上柱面铰接转动的所述左模架/右模架柱面铰接，所述开合模转子臂摆 动时，用于驱动所述左模架和所述右模架做开合运动；
    所述辅助转臂固联于所述开合模转子臂或所述左模架或所述右模架上，所述空间连杆两端分别通过固联于其上的关节轴承球面铰接于所述辅助转臂和所述底模摆杆上，所述底模支架固设于所述模架支架上，所述底模摆杆可绕所述底模支架上一轴转动，所述底模曲柄一端固联于所述底模摆杆上，另一端则柱面铰接于所述底模拉杆上，所述底模拉杆柱面铰接于所述底模上，所述底模，可在固联于所述底模支架上的所述底模导轨上滑动，所述开合模转子臂摆动时，用于驱动所述底模做升降运动；
    其特征在于：由所述开合模转子臂或所述左模架或所述右模架及固联于其上的所述辅助转臂、所述模架支架及固联于其上的所述底模支架、所述空间连杆、所述底模摆杆所构成的连杆机构为空间四连杆机构；在所述空间四连杆机构中，所述开合模转子臂或所述左模架或所述右模架及固联于其上的所述辅助转臂的运动平面与所述底模摆杆的运动平面相互垂直；
    由所述底模曲柄、所述底模拉杆、所述底模、所述底模支架及固联于其上的所述底模导轨所构成的连杆机构为平面曲柄滑块机构；
    由所述空间四连杆机构与所述平面曲柄滑块机构的串联，构成串联型组合连杆式底模升降机构；
    由所述左模架、所述左开合模连杆、所述开合模摆臂及与其固联于所述开合模摆轴上的所述开合模转子臂、所述模架支架所构成的连杆机构为第一平面四连杆机构；
    由所述右模架、所述右开合模连杆、所述开合模摆臂及与其固联于所述开合模摆轴上的所述开合模转子臂、所述模架支架所构成的连杆机构为第二平面四连杆机构；
    由所述串联型组合连杆式底模升降机构与所述第一平面四连杆机构、所述第二平面四连杆机构的组合，形成所述吹瓶机开合模与底模联动的全连杆式组合连杆机构。
  3. 根据权利要求2所述的一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，其特征在于：
    开模初期，所述底模摆杆与所述空间连杆间的夹角为锐角，所述辅助转臂与所述空间连杆间的夹角为钝角；开模后期，所述底模摆杆与所述空间连杆间的夹角为钝角，所述辅助转臂与所述空间连杆间的夹角为锐角；
    合模初期，所述底模摆杆与所述空间连杆间的夹角为钝角，所述辅助转臂与所述空间连杆间的夹角为锐角；合模后期，所述底模摆杆与所述空间连杆间的夹角为锐角，所述辅助转臂与所述空间连杆间的夹角为钝角；
    所述底模位于上端起始点时，所述底模曲柄与所述底模拉杆成夹角为170°-180°之间的近似直线形态。
  4. 根据权利要求2或3所述的一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，其特征在于：在所述底模、所述左模架/右模架中，一者上设有楔形环槽，另一者上则设有用于卡入所述楔形环槽中的楔形卡环；
    所述串联型组合连杆式底模升降机构具有高灵敏度状态和低灵敏度状态；
    开模初期，所述串联型组合连杆式底模升降机构处于所述低灵敏度状态，由所述开合模转子臂带动所述左模架与所述右模架逐渐张开，直至所述楔形环槽与所述楔形卡环完全脱离前，所述串联型组合连杆式底模升降机构控制所述底模产生的位移小于所述楔型卡环与所述楔型环槽间的间隙，形成所述底模运动的近似休止期；
    合模后期，所述串联型组合连杆式底模升降机构处于所述低灵敏度状态，由所述开合模转子臂带动所述左模架与所述右模架逐渐闭合，所述楔形卡环进入所述楔形环槽后直至完全对合前，所述串联型组合连杆式底模升降机构控制所述底模产生的位移小于所述楔型卡环与所述楔型环槽间的间隙，形成所述底模运动的近似休止期；
    开模中期，所述串联型组合连杆式底模升降机构处于所述高灵敏度状态，用于控制所述底模下降较大位移；
    合模中期，所述串联型组合连杆式底模升降机构处于所述高灵敏度状态，用于控制所述底模上升较大位移。
  5. 根据权利要求4所述的一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，其特征在于：
    开模时，所述串联型组合连杆式底模升降机构控制所述底模运动与取瓶机构所取瓶子的运动无几何干涉；
    合模时，所述串联型组合连杆式底模升降机构控制所述底模运动与送坯机构所送瓶坯的运动无几何干涉。
  6. 根据权利要求2所述的一种吹瓶机开合模与底模联动的全连杆式组合连杆机构，其特征在于：所述底模摆杆与所述底模曲柄之间的夹角为α，其中0°≤α≤180°。
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