Full-rotation injection blow and fill spin integrated machine and full-rotation injection blow and fill spin integrated machine

Abstract

This invention discloses a fully rotary injection blow molding and capping machine, comprising a frame, an injection molding mechanism, a blow molding mechanism, a filling mechanism, and a capping mechanism, and a first conveying mechanism, a second conveying mechanism, and a third conveying mechanism sequentially arranged between each pair of the above four components. The injection molding mechanism includes a rotating base, an injection molding unit, an extrusion mechanism, and a conveying pipe. The injection molding unit includes an injection molding support, a lower injection mold, an upper injection mold, and a lifting rod. The upper injection mold includes an outer mold, an inner mold flap, a first elastic element, and an air inlet hole on the outer mold. The inner mold flap moves inward to stretch the first elastic element when air enters through the air inlet hole, creating a gap between the inner mold flap and the outer mold. The inner mold flap also moves outward to abut against the outer mold when air enters through the air inlet hole. The first conveying mechanism includes a transition hub and a clamping unit. The clamping unit clamps the preform in the upper injection mold and pulls the preform downward before it abuts against the inner mold flap. This fully rotary injection blow molding and capping machine has relatively high production capacity and conveying efficiency.

Description

Technical Field

[0001] This invention relates to the field of packaging technology, and in particular to a fully rotary injection-blowing-filling-spinning integrated machine and a fully rotary injection-blowing-labeling-filling-spinning integrated machine. Background Technology

[0002] Existing blow molding machines typically use preforms produced by horizontal injection molding machines or vertical disc injection molding machines. The preforms are then fed into a heating machine and a blow molding machine to be blown into shape, then into a filling machine for filling, and finally into a capping machine for capping.

[0003] For horizontal injection molding machines, the preforms produced are not convenient to be directly sorted and transported after molding. They need to be collected and transported in a centralized manner. This not only causes scratches on the surface of the preforms, leading to an increase in the defect rate, but also makes it impossible to transport the preforms in real time, affecting the continuous production of the blow molding machine.

[0004] Vertical disc injection molding machines not only suffer from low production capacity, but also from difficult demolding leading to low conveying efficiency, which in turn affects the production efficiency of blow molding machines. Summary of the Invention

[0005] The purpose of this invention is to provide a fully rotary injection blow molding and filling machine and a fully rotary injection blow molding and filling machine, which have relatively high production capacity and conveying efficiency, and can ensure the production efficiency of the blow molding mechanism and other subsequent processing mechanisms.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A fully rotary injection-blowing-filling-capping integrated machine includes a frame, an injection molding mechanism, a blow molding mechanism, a filling mechanism, and a capping mechanism, which are rotatably mounted on the frame around their own axes, and a first conveying mechanism, a second conveying mechanism, and a third conveying mechanism arranged sequentially between each of the four mechanisms.

[0008] The injection molding mechanism includes a rotating seat rotatable about its own axis on the frame, a plurality of injection molding units arranged sequentially and spaced apart on the rotating seat along the circumferential direction, an extrusion mechanism on the rotating seat for storing injection molding plastic, and a plurality of delivery pipes corresponding one-to-one between the extrusion mechanism and the injection molding units.

[0009] The injection molding unit includes an injection support mounted on the rotating seat, a lower injection mold mounted on the injection support or the rotating seat, an upper injection mold mounted on the injection support and located above the lower injection mold, and a lifting rod mounted on the injection support. The upper injection mold and the lower injection mold are respectively provided with an upper through hole and a lower through hole for the lifting rod to pass through.

[0010] The injection molding upper mold includes a cylindrical outer mold and at least two inner mold segments arranged in the outer mold along the circumferential direction. The injection molding upper mold also includes at least two first elastic members connected one-to-one between the outer mold and the inner mold segments, and an air inlet hole opened on the outer mold. The inner mold segments are used to move inward to stretch the first elastic members when air is introduced through the air inlet hole, so that the outer circumferential surface of the inner mold segment is spaced apart from the inner circumferential surface of the outer mold. The inner mold segments are also used to move outward to abut against the outer mold when air is cut off through the air inlet hole.

[0011] The first conveying mechanism includes a transition hub rotatable about its own axis and mounted on the frame, and a plurality of clamping units arranged at intervals along the circumferential direction on the transition hub.

[0012] The clamping unit is vertically mounted on the transition hub and is used to clamp the preform in the upper injection mold to pull the preform downward away from the upper injection mold before it abuts against the inner mold flap.

[0013] Preferably, the inner mold flap has an initial position and an injection position, and the inner mold flap is used to switch from the initial position to the injection position when air is introduced through the air inlet;

[0014] When the inner mold lobe is in the initial position, at least two inner mold lobes are spaced apart from each other.

[0015] When the inner mold flap is in the injection position, at least two inner mold flaps abut against each other in the circumferential direction and surround each other to form a cylindrical inner mold.

[0016] Preferably, the inner mold flap includes a first arcuate inner surface and a second arcuate inner surface, the radius of the first arcuate inner surface is smaller than the radius of the second arcuate inner surface, and the first arcuate inner surface is located above the second arcuate inner surface.

[0017] Preferably, the first elastic element is a tension spring, the elastic extension direction of which is parallel to the arrangement direction of the inner mold flap and the outer mold, and perpendicular to the lifting direction of the upper injection mold.

[0018] Preferably, in either the outer mold or the inner mold lobe, the upper injection mold further includes a guide groove provided on one of them and a guide member provided on the other for extending into the guide groove.

[0019] Preferably, the fully rotary injection blow molding and filling machine further includes a first lifting cam disposed on the frame, and the injection unit further includes a first roller disposed on the outside of the upper injection mold that can rotate around its own axis, the first roller being used to abut against the upper surface of the first lifting cam through its outer circumferential surface.

[0020] Preferably, the injection molding unit further includes a second elastic element at its upper and lower ends for connecting the upper injection mold and the lower injection mold, respectively. The second elastic element is used to provide an elastic restoring force that pulls the upper injection mold downward to press the first roller against the first lifting cam.

[0021] Preferably, the clamping unit includes a linear guide rail that is vertically mounted on the transition hub, a transition manipulator mounted on the linear guide rail, a second roller that is rotatable about its own axis and mounted on the linear guide rail or the transition manipulator, and a second lifting cam mounted on the frame. The second roller is used to abut against the upper surface of the second lifting cam through its outer circumferential surface.

[0022] Preferably, the upper injection mold is provided with a cooler for cooling the part of the preform held by the transition robot, and the outer side of the transition hub is provided with a heat spreader for heating the preform to make its temperature uniform throughout. The transition robot is used to hold the preform when it rises to the highest point.

[0023] A fully rotary injection-blowing-labeling-filling-capping integrated machine includes a frame, an injection molding mechanism, a blow molding mechanism, a labeling mechanism, a filling mechanism, and a capping mechanism, which are rotatably mounted on the frame around their own axes, and a first conveying mechanism, a second conveying mechanism, a third conveying mechanism, and a fourth conveying mechanism arranged sequentially between each pair of the above four components.

[0024] The injection molding mechanism includes a rotating seat rotatable about its own axis on the frame, a plurality of injection molding units arranged sequentially and spaced apart on the rotating seat along the circumferential direction, an extrusion mechanism on the rotating seat for storing injection molding plastic, and a plurality of delivery pipes corresponding one-to-one between the extrusion mechanism and the injection molding units.

[0025] The injection molding unit includes an injection support mounted on the rotating seat, a lower injection mold mounted on the injection support or the rotating seat, an upper injection mold mounted on the injection support and located above the lower injection mold, and a lifting rod mounted on the injection support. The upper injection mold and the lower injection mold are respectively provided with an upper through hole and a lower through hole for the lifting rod to pass through.

[0026] The injection molding upper mold includes a cylindrical outer mold and at least two inner mold segments arranged in the outer mold along the circumferential direction. The injection molding upper mold also includes at least two first elastic members connected one-to-one between the outer mold and the inner mold segments, and an air inlet hole opened on the outer mold. The inner mold segments are used to move inward to stretch the first elastic members when air is introduced through the air inlet hole, so that the outer circumferential surface of the inner mold segment is spaced apart from the inner circumferential surface of the outer mold. The inner mold segments are also used to move outward to abut against the outer mold when air is cut off through the air inlet hole.

[0027] The first conveying mechanism includes a transition hub rotatable about its own axis and mounted on the frame, and a plurality of clamping units arranged at intervals along the circumferential direction on the transition hub.

[0028] The clamping unit is vertically mounted on the transition hub and is used to clamp the preform in the upper injection mold to pull the preform downward away from the upper injection mold before it abuts against the inner mold flap.

[0029] Preferably, the inner mold flap has an initial position and an injection position, and the inner mold flap is used to switch from the initial position to the injection position when air is introduced through the air inlet;

[0030] When the inner mold lobe is in the initial position, at least two inner mold lobes are spaced apart from each other.

[0031] When the inner mold flap is in the injection position, at least two inner mold flaps abut against each other in the circumferential direction and surround each other to form a cylindrical inner mold.

[0032] Preferably, the inner mold flap includes a first arcuate inner surface and a second arcuate inner surface, the radius of the first arcuate inner surface is smaller than the radius of the second arcuate inner surface, and the first arcuate inner surface is located above the second arcuate inner surface.

[0033] Preferably, the first elastic element is a tension spring, the elastic extension direction of which is parallel to the arrangement direction of the inner mold flap and the outer mold, and perpendicular to the lifting direction of the upper injection mold.

[0034] Preferably, in either the outer mold or the inner mold lobe, the upper injection mold further includes a guide groove provided on one of them and a guide member provided on the other for extending into the guide groove.

[0035] Preferably, the fully rotary injection blow molding machine further includes a first lifting cam mounted on the frame, and the injection unit further includes a first roller rotatably mounted on the outside of the upper injection mold about its own axis. The first roller is used to abut against the upper surface of the first lifting cam through its outer circumferential surface.

[0036] Preferably, the injection molding unit further includes a second elastic element at its upper and lower ends for connecting the upper injection mold and the lower injection mold, respectively. The second elastic element is used to provide an elastic restoring force that pulls the upper injection mold downward to press the first roller against the first lifting cam.

[0037] Preferably, the clamping unit includes a linear guide rail that is vertically mounted on the transition hub, a transition manipulator mounted on the linear guide rail, a second roller that is rotatable about its own axis and mounted on the linear guide rail or the transition manipulator, and a second lifting cam mounted on the frame. The second roller is used to abut against the upper surface of the second lifting cam through its outer circumferential surface.

[0038] Preferably, the upper injection mold is provided with a cooler for cooling the part of the preform held by the transition robot, and the outer side of the transition hub is provided with a heat spreader for heating the preform to make its temperature uniform throughout. The transition robot is used to hold the preform when it rises to the highest point.

[0039] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: The present invention provides a fully rotary injection-blowing-filling-seal integrated machine and a fully rotary injection-blowing-applying-filling-seal integrated machine, which have the following advantages:

[0040] The extrusion mechanism for storing injection-molded plastic is set on a rotating seat. During the rotation and handover process of the rotating seat, the preform is injection-molded and solidified, resulting in relatively high production efficiency and capacity.

[0041] The preform is formed between the upper injection mold and the lower injection mold. After injection molding, the upper injection mold and the lifting rod can be raised to remove the preform. Since the mold opening direction is upward, more injection units can be arranged on the rotating seat of the same radius, which can further improve production efficiency and capacity.

[0042] By setting the specific structure of the injection mold, air is introduced through the air inlet during injection, driving several inner mold pieces to move closer together to form the injection cavity. After injection, the air inlet is cut off, and the inner mold pieces move outward away from the preform after injection molding under the action of the first elastic element. This not only enables the smooth demolding of the upper part of the preform, but also allows the upper part of the preform and the inner mold pieces to be spaced apart. During the relative rotation of the rotating seat and the transition hub, the clamping unit can pull the preform downward away from the injection mold before it comes into contact with the inner mold pieces. This allows the clamping unit to smoothly remove the preform, resulting in relatively high conveying efficiency, which in turn ensures the production efficiency of the blow molding mechanism and other subsequent processing mechanisms.

[0043] By placing the first conveying mechanism between the injection molding mechanism and the blow molding mechanism, the residual heat after the preform injection molding can be fully utilized, thereby reducing the energy consumption of the blow molding mechanism. Attached Figure Description

[0044] Appendix Figure 1 This is a schematic diagram of the structure of a fully rotary injection-blowing-filling-seal integrated machine according to a specific embodiment of the present invention;

[0045] Appendix Figure 2 For the appendix Figure 1 Enlarged structural diagram of the injection molding unit;

[0046] Appendix Figure 3 This is an enlarged cross-sectional view of the upper injection mold (with the inner mold flap in the injection position);

[0047] Appendix Figure 4 This is an enlarged cross-sectional view of the upper and lower injection molds after they are closed.

[0048] Appendix Figure 5 This is an enlarged schematic diagram of the connection structure between the transition hub and the clamping unit.

[0049] Appendix Figure 6 This is a schematic diagram of the injection molding mechanism;

[0050] Appendix Figure 7 This is a structural schematic diagram of a fully rotary injection-blowing-applying-coating integrated machine according to a specific embodiment of the present invention.

[0051] Among them: 1. Rack;

[0052] 2. Injection molding mechanism; 21. Rotating seat; 22. Injection molding unit; 23. Extrusion mechanism; 24. Conveying pipe; 25. First lifting cam; 26. Hopper;

[0053] 221. Injection support; 222. Lower injection mold; 223. Upper injection mold; 2231. Outer mold; 22311. Groove; 2232. Inner mold piece; 22321. First arc-shaped inner surface; 22322. Second arc-shaped inner surface; 2233. First elastic element; 2234. Air inlet; 2235. Guide groove; 2236. Guide element; 2237. First latch; 2238. Second latch; 224. Lifting rod; 225. First roller; 226. Second elastic element; 227. Melt dispensing mechanism; 228. Control valve;

[0054] 3. Blow molding mechanism; 31. Blow molding turntable; 32. Blow molding die holder;

[0055] 4. Filling mechanism; 41. Filling turntable; 42. Filling unit; 43. Liquid storage container; 44. Filling liquid pipe;

[0056] 5. Capping mechanism; 51. Cap delivery channel;

[0057] 6. First conveying mechanism; 61. Transition hub; 62. Clamping unit; 621. Linear guide rail; 622. Transition manipulator; 623. Second roller; 624. Second lifting cam; 625. Limiting component; 63. Billet picking hub; 64. Billet picking manipulator; 65. Heat exchanger;

[0058] 7. Second conveyor mechanism; 71. Bottle ejection hub; 72. Bottle ejection robot arm;

[0059] 8. Third transmission mechanism; 9. Fourth transmission mechanism; 10. Fifth transmission mechanism;

[0060] 11. Labeling mechanism; 111. Labeling turntable; 112. Labeling station. Detailed Implementation

[0061] The technical solution of the present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0062] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0063] In the description of the embodiments of the present invention, it should be understood that the terms "length", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present invention.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0065] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0066] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0067] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0068] See Figure 1 As shown, this embodiment provides a fully rotary injection blow molding, filling and capping integrated machine, including a frame 1, an injection molding mechanism 2, a blow molding mechanism 3, a filling mechanism 4 and a capping mechanism 5, which are rotatably mounted on the frame 1 around their own axis, and a first conveying mechanism 6, a second conveying mechanism 7 and a third conveying mechanism 8 arranged sequentially between each of the above four components.

[0069] In this embodiment, the injection molding mechanism 2, the blow molding mechanism 3, the filling mechanism 4, and the capping mechanism 5 are arranged sequentially along the feeding direction. The first conveying mechanism 6 is located between the injection molding mechanism 2 and the blow molding mechanism 3, and is used to feed the injection-molded preform into the blow molding mechanism 3 for blow molding. The second conveying mechanism 7 is located between the blow molding mechanism 3 and the filling mechanism 4, and is used to feed the blow-molded container into the filling mechanism 4 for filling. The third conveying mechanism 8 is located between the filling mechanism 4 and the capping mechanism 5, and is used to feed the filled container into the capping mechanism 5 for capping and sealing.

[0070] The second conveying mechanism 7 and the third conveying mechanism 8 each include at least one turntable mounted on the frame 1 that can rotate about its own axis.

[0071] In this embodiment, the above-mentioned fully rotary injection-blowing-filling-capping integrated machine also includes a fifth conveying mechanism 10, which is located outside the capping mechanism 5 and is used to send out the capped container.

[0072] See Figure 6As shown, the injection molding mechanism 2 includes a rotating seat 21 rotatable about its own axis on the frame 1, a plurality of injection molding units 22 arranged sequentially and spaced apart on the rotating seat 21 along the circumferential direction, an extrusion mechanism 23 on the rotating seat 21 for storing injection molding plastic, and a plurality of delivery pipes 24 correspondingly arranged between the extrusion mechanism 23 and the injection molding units 22.

[0073] In this embodiment, the extrusion mechanism 23 is cylindrical and is located on the inner side of multiple injection molding units 22. A hopper 26 is connected above the extrusion mechanism 23 for feeding injection molding plastic into it. A ring of conveying pipes 24 is evenly spaced on the lower outer side of the extrusion mechanism 23. The extrusion mechanism 23 is equipped with a pressure booster (not shown in the figure) to smoothly inject the injection molding plastic into the conveying pipes 24; these conveying pipes 24 have a heating function to prevent the injection molding plastic from solidifying within them.

[0074] See Figure 2 As shown, the injection molding unit 22 includes an injection support 221 disposed on the rotating seat 21, a lower injection mold 222 disposed on the injection support 221 or the rotating seat 21 (in this embodiment, the lower injection mold 222 is located outside the injection support 221 and connected to the rotating seat 21), an upper injection mold 223 disposed on the injection support 221 and located directly above the lower injection mold 222, and a lifting rod 224 disposed on the injection support 221.

[0075] The injection molding unit 22 further includes a melt dispensing mechanism 227 disposed on the injection support 221 and sleeved outside the delivery pipe 24. The melt dispensing mechanism 227 heats the injection plastic in the delivery pipe 24 into a melt. The injection support 221 is provided with a control valve 228 for controlling the on / off state of the delivery pipe 24. In this embodiment, the delivery pipe 24 passes outwards through the melt dispensing mechanism 227 and the injection support 221 in sequence, and then communicates with the lower injection mold 222. In other embodiments, the delivery pipe 24 may also communicate with the upper injection mold 223.

[0076] See Figure 4 As shown, the lifting rod 224 is located directly above the upper injection mold 223. The upper injection mold 223 and the lower injection mold 222 each have an upper through hole and a lower through hole for the lifting rod 224 to pass through. After the upper injection mold 223 and the lower injection mold 222 are closed, they form an injection mold cavity. After the lifting rod 224 is inserted into this injection mold cavity, there is a gap between them for injecting the injection plastic; this gap is shaped like the preform.

[0077] See Figure 3As shown, the injection molding upper mold 223 includes a cylindrical outer mold 2231 and at least two inner mold segments 2232 arranged in the outer mold 2231 and along the circumferential direction. The injection molding upper mold 223 also includes at least two first elastic members 2233 connected one-to-one between the outer mold 2231 and the inner mold segments 2232, and an air inlet 2234 opened on the outer mold 2231. The air inlet 2234 communicates with the gap between the outer mold 2231 and the inner mold segments 2232. The inner mold segments 2232 are used to move inward to stretch the first elastic members 2233 when air is introduced through the air inlet 2234, thereby making the outer circumferential surface of the inner mold segment 2232 and the inner circumferential surface of the outer mold 2231 spaced apart. The inner mold segments 2232 are also used to move outward under the action of the first elastic members 2233 to abut against the outer mold 2231 when the air is cut off through the air inlet 2234. In this embodiment, the outer mold 2231 is provided with a groove 22311, and the first elastic member 2233 is located in the groove 22311.

[0078] Of the outer mold 2231 and the inner mold segment 2232, the injection molding upper mold 223 further includes a guide groove 2235 on one of them and a guide member 2236 on the other for extending into the guide groove 2235. In this embodiment, the guide groove 2235 is recessed outward on the inner circumferential surface of the outer mold 2231, while the guide member 2236 protrudes outward on the outer circumferential surface of the inner mold segment 2232. Each inner mold segment 2232 has two guide members 2236 symmetrically arranged along the vertical direction, located on the upper and lower sides of the corresponding first elastic member 2233, respectively, to ensure the stability of the inner mold segment 2232 relative to the outer mold 2231, thereby preventing damage to the preform after injection molding. In this embodiment, the air inlet 2234 communicates with the guide groove 2235 from inside the outer mold 2231.

[0079] See Figure 3 As shown, the inner mold flap 2232 includes a first arc-shaped inner surface 22321 and a second arc-shaped inner surface 22322. The radius of the first arc-shaped inner surface 22321 is smaller than the radius of the second arc-shaped inner surface 22322, and the first arc-shaped inner surface 22321 is located above the second arc-shaped inner surface 22322. During mold closing, the first arc-shaped inner surface 22321 is used to abut against the inserted lifting rod 224, and an annular gap for injecting injection plastic is formed between the second arc-shaped inner surface 22322 and the lifting rod 224.

[0080] In this embodiment, the first elastic element 2233 is a tension spring. The elastic extension and contraction direction of the tension spring is parallel to the arrangement direction of the inner mold piece 2232 and the outer mold 2231, and perpendicular to the lifting direction of the upper injection mold 223. The length direction of the tension spring is also parallel to the radial direction of the upper injection mold 223. The outer mold 2231 is provided with a first hook 2237, and the inner mold piece 2232 is provided with a second hook 2238. The tension spring is hooked onto the first hook 2237 and the second hook 2238 at its two ends, respectively.

[0081] The inner mold flap 2232 has an initial position and an injection position. The inner mold flap 2232 is used to switch from the initial position to the injection position when air is introduced through the air inlet 2234, at which time the first elastic element 2233 is stretched. The inner mold flap 2232 is also used to switch from the injection position to the initial position when air intake through the air inlet 2234 stops. The elastic restoring force for the inner mold flap 2232 to reset is provided by the first elastic element 2233. This configuration allows for quick demolding of the preform's opening after injection molding, enabling the clamping unit 62 on the first conveying mechanism 6 to smoothly remove the preform. This results in relatively high conveying efficiency, thereby ensuring the production efficiency of the blow molding mechanism 3.

[0082] When the inner mold piece 2232 is in the initial position, at least two inner mold pieces 2232 are spaced apart. Under the action of the first elastic member 2233, the guide member 2236 on the inner mold piece 2232 is inserted into the guide groove 2235 on the outer mold 2231, so that the inner mold piece 2232 switches from the injection position to the initial position. At this time, the inner mold piece 2232 abuts against the outer mold 2231, that is, the outer peripheral surface of the inner mold piece 2232 is pressed against the inner peripheral surface of the outer mold 2231.

[0083] When the inner mold piece 2232 is in the injection position, at least two inner mold pieces 2232 abut against each other and enclose each other in the circumferential direction to form a cylindrical inner mold. Under the action of gas pressure, the guide piece 2236 on the inner mold piece 2232 moves inward relative to the guide groove 2235 on the outer mold 2231, so that the inner mold piece 2232 switches from the initial position to the injection position. At this time, the inner mold piece 2232 moves inward away from the outer mold 2231, that is, the outer circumferential surface of the inner mold piece 2232 and the inner circumferential surface of the outer mold 2231 are spaced apart.

[0084] See Figure 1 As shown, the above-mentioned fully rotary injection blow molding and filling machine also includes a first lifting cam 25 disposed on the frame 1. In this embodiment, the first lifting cam 25 is arranged around the outside of the injection molding unit 22. The injection molding unit 22 also includes a first roller 225 disposed on the outside of the upper injection mold 223, which can rotate around its own axis. The first roller 225 is used to abut against the upper surface of the first lifting cam 25 through its outer circumferential surface. The axis of the first roller 225 is parallel to the radial direction of the rotating seat 21.

[0085] The injection molding unit 22 also includes a second elastic element 226 at its upper and lower ends for connecting the upper injection mold 223 and the lower injection mold 222 respectively. The second elastic element 226 is used to provide an elastic restoring force to pull the upper injection mold 223 downward to press the first roller 225 against the first lifting cam 25.

[0086] See Figure 5 As shown, the first conveying mechanism 6 includes a transition hub 61 rotatable about its own axis and mounted on the frame 1, and a plurality of clamping units 62 arranged sequentially and at intervals along the circumferential direction on the transition hub 61. The clamping units 62 are vertically and vertically mounted on the transition hub 61 and are used to clamp the preform in the upper injection mold 223 so as to pull the preform downward away from the upper injection mold 223 before it abuts against the inner mold flap 2232.

[0087] The clamping unit 62 includes a linear guide rail 621 that is vertically mounted on the transition hub 61, a transition manipulator 622 mounted on the linear guide rail 621, a second roller 623 that is rotatable about its own axis and mounted on the linear guide rail 621 or the transition manipulator 622, and a second lifting cam 624 mounted on the frame 1. The second roller 623 abuts against the upper surface of the second lifting cam 624 through its outer circumferential surface. With this arrangement, as the transition hub 61 rotates with the clamping unit 62, the transition manipulator 622 can move up and down relative to the transition hub 61. To prevent the linear guide rail 621 from detaching upward from the transition hub 61, a plurality of limiting members 625 are provided on the transition hub 61, corresponding one-to-one with those above the linear guide rail 621.

[0088] In this embodiment, the upper injection mold 223 is equipped with a cooler (not shown in the figure) for cooling the preform held by the transition robot 622 to prevent deformation of the preform. A heat spreader 65 is provided on the outer side of the transition hub 61 to heat the preform and ensure uniform temperature throughout. In this embodiment, the heat spreader 65 has a double-layered arc-shaped structure, with the preform located between the inner and outer layers when conveyed outside the transition hub 61. This design not only fully utilizes the residual heat after preform injection molding, reducing the energy consumption of the blow molding mechanism 3, but also ensures the quality of the blow molding process.

[0089] In this embodiment, the transition manipulator 622 is used to grip the preform when it rises to its highest point, that is, to grip the highest point of the preform exposed above the upper injection mold 223. Since the temperature at this exposed point of the preform is relatively low, it can better prevent deformation during gripping.

[0090] In this embodiment, the first conveying mechanism 6 further includes a preform picking hub 63 located between the blow molding mechanism 3 and the transition hub 61. The preform picking hub 63 is equipped with a preform picking robot 64, which is used to pick up preforms from the clamping unit 62 of the transition hub 61 and feed them into the blow molding mechanism 3. The blow molding mechanism 3 includes a blow molding turntable 31 and blow molding mold frames 32 located on the blow molding turntable 31. Multiple blow molding mold frames 32 are arranged evenly at intervals along the circumferential direction on the blow molding turntable 31. The second conveying mechanism 7 includes a bottle exit hub 71 located outside the blow molding mechanism 3. The bottle exit hub 71 is equipped with a bottle exit robot 72, which is used to pick up containers blown into shape in the blow molding mold frame 32. The preform picking hub 63, the blow molding turntable 31, and the bottle exit hub 71 are each rotatably mounted on the frame 1 around their own axis.

[0091] In this embodiment, the filling mechanism 4 includes a filling turntable 41 rotatable about its own axis on the frame 1, a plurality of filling units 42 evenly spaced along the circumferential direction on the filling turntable 41, a liquid storage container 43 on the filling turntable 41, and a plurality of filling liquid pipes 44 correspondingly disposed between the liquid storage container 43 and the filling unit 42.

[0092] In this embodiment, the capping mechanism 5 includes a capping turntable rotatable about its own axis on the frame 1, a plurality of capping units evenly spaced along the circumferential direction on the frame 1 and located above the capping turntable, and a cap feeding channel 51 on the frame 1 for feeding bottle caps to the capping turntable.

[0093] See Figure 7 As shown, this embodiment provides a fully rotary injection-blowing-labeling-filling-capping integrated machine, including a frame 1, an injection molding mechanism 2, a blow molding mechanism 3, a labeling mechanism 11, a filling mechanism 4, and a capping mechanism 5, which are rotatably mounted on the frame 1 around their own axis, and a first conveying mechanism 6, a second conveying mechanism 7, a third conveying mechanism 8, and a fourth conveying mechanism 9 arranged sequentially between each of the above four mechanisms.

[0094] In this embodiment, the injection molding mechanism 2, the blow molding mechanism 3, the labeling mechanism 11, the filling mechanism 4, and the capping mechanism 5 are arranged sequentially along the feeding direction. The first conveying mechanism 6 is located between the injection molding mechanism 2 and the blow molding mechanism 3, and is used to feed the injection-molded preform into the blow molding mechanism 3 for blow molding. The second conveying mechanism 7 is located between the blow molding mechanism 3 and the labeling mechanism 11, and is used to feed the blow-molded container into the labeling mechanism 11 for labeling. The third conveying mechanism 8 is located between the labeling mechanism 11 and the filling mechanism 4, and is used to feed the labeled container into the filling mechanism 4 for filling. The fourth conveying mechanism 9 is located between the filling mechanism 4 and the capping mechanism 5, and is used to feed the filled container into the capping mechanism 5 for capping and sealing.

[0095] The second transmission mechanism 7, the third transmission mechanism 8 and the fourth transmission mechanism 9 each include at least one turntable mounted on the frame 1 that can rotate about its own axis.

[0096] In this embodiment, the above-mentioned fully rotary injection-blowing-applying-filling-screwing integrated machine also includes a fifth conveying mechanism 10, which is located outside the capping mechanism 5 and is used to send out the capped container.

[0097] In this embodiment, the labeling mechanism 11 includes a labeling turntable 111 rotatable about its own axis and mounted on the frame 1, and a labeling station 112 mounted on the frame 1 for labeling containers.

[0098] The remaining technical features of this fully rotary injection-blowing-applied-filling-seal integrated machine are the same as the corresponding technical features of the aforementioned fully rotary injection-blowing-filling-seal integrated machine, and will not be described in detail here.

[0099] The following details the working process of the fully rotary injection-blowing-applying-coating integrated machine:

[0100] During operation, the injection plastic is injected into the extrusion mechanism 23 through the hopper 26. Under the action of the intensifier in the extrusion mechanism 23, the injection plastic enters the delivery pipe 24 and is then fed into the injection mold 222, while maintaining air supply to the air inlet 2234.

[0101] The rotating seat 21 rotates around its axis. During the revolution of the injection support 221, the first roller 225 first abuts against the descending section of the first lifting cam 25. Under the weight of the upper injection mold 223 itself and the cooperation of the second elastic element 226, the upper injection mold 223 is driven to move downward until it abuts against the lower injection mold 222 and closes. At the same time, the lifting rod 224 descends into the upper injection mold 223 and the lower injection mold 222 under the drive of the drive motor.

[0102] The rotating seat 21 continues to rotate around its axis. The lifting rod 224 rises under the drive of the drive motor and disengages from the lower injection mold 222 and the upper injection mold 223 in sequence. During the revolution of the injection support 221, the first roller 225 abuts against the rising section of the first lifting cam 25, causing the upper injection mold 223 to rise under the drive of the first lifting cam 25 until the bottom of the preform is disengaged from the lower injection mold 222.

[0103] During the revolution of the transition manipulator 622, the second roller 623 abuts against the rising section of the second lifting cam 624 until the transition manipulator 622 rises to the highest point. At this time, the transition manipulator 622 is closest to the upper injection mold 223 that has just separated from the lower injection mold 222. The bottle preform is held by the transition manipulator 622, and the air inlet is cut off, so that the upper part of the bottle preform is laterally separated from the upper injection mold 223.

[0104] At this time, the transition robot 622 and the upper injection mold 223 continue to revolve. The second roller 623 abuts against the descending section of the second lifting cam 624, causing the transition robot 622 to pull the preform downward from the upper injection mold 223. At this time, the preform and the inner mold petal 2232 are spaced apart. During the process of the transition robot 622 pulling the preform downward, the gap between the preform and the inner mold petal 2232 gradually decreases. The transition robot 622 is used to pull the preform downward from the upper injection mold 223 before it touches the inner mold petal 2232, so as to smoothly remove the molded preform from the upper injection mold 223.

[0105] After the transition robot 622 continues to rotate through a certain angle, it hands the preform over to the preform picking robot 64. The preform picking robot 64 then sends the preform into the blow molding die 32. During the rotation of the blow molding turntable 31, the preform is blown into shape using the residual heat of the injection molding process.

[0106] Next, the blown container is taken out of the blow molding mold 32 by the bottle ejection robot 72 and sent to the labeling mechanism 11 for labeling by the second conveying mechanism 7; then the container is taken out of the labeling mechanism 11 by the third conveying mechanism 8 and sent to the filling mechanism 4 for filling; then the container is taken out of the filling mechanism 4 by the fourth conveying mechanism 9 and sent to the capping mechanism 5 for capping; finally, the container is taken out of the capping mechanism 5 by the fifth conveying mechanism 10 and sent to the outside.

[0107] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A fully rotary injection-blowing-filling-seal integrated machine, characterized in that: It includes a frame, an injection molding mechanism, a blow molding mechanism, a filling mechanism and a capping mechanism that are rotatable on the frame, and a first conveying mechanism, a second conveying mechanism and a third conveying mechanism arranged sequentially between each of the above four components. The injection molding mechanism includes a rotating seat rotatable about its own axis on the frame, a plurality of injection molding units arranged sequentially and spaced apart on the rotating seat along the circumferential direction, an extrusion mechanism on the rotating seat for storing injection molding plastic, and a plurality of delivery pipes corresponding one-to-one between the extrusion mechanism and the injection molding units. The injection molding unit includes an injection support mounted on the rotating seat, a lower injection mold mounted on the injection support or the rotating seat, an upper injection mold mounted on the injection support and located above the lower injection mold, and a lifting rod mounted on the injection support. The upper injection mold and the lower injection mold are respectively provided with an upper through hole and a lower through hole for the lifting rod to pass through. The injection molding upper mold includes a cylindrical outer mold and at least two inner mold segments arranged in the outer mold along the circumferential direction. The injection molding upper mold also includes at least two first elastic members connected one-to-one between the outer mold and the inner mold segments, and an air inlet hole opened on the outer mold. The inner mold segments are used to move inward to stretch the first elastic members when air is introduced through the air inlet hole, so that the outer circumferential surface of the inner mold segment is spaced apart from the inner circumferential surface of the outer mold. The inner mold segments are also used to move outward to abut against the outer mold when air is cut off through the air inlet hole. The first conveying mechanism includes a transition hub rotatable about its own axis and mounted on the frame, and a plurality of clamping units arranged at intervals along the circumferential direction on the transition hub. The clamping unit is vertically mounted on the transition hub and is used to clamp the preform in the upper injection mold to pull the preform downward away from the upper injection mold before it abuts against the inner mold flap.

2. A fully rotary injection-blowing-applying-filling-spinning integrated machine, characterized in that: It includes a frame, an injection molding mechanism, a blow molding mechanism, a labeling mechanism, a filling mechanism, and a capping mechanism, all of which are rotatable on the frame and arranged in pairs around their own axes; and a first conveying mechanism, a second conveying mechanism, a third conveying mechanism, and a fourth conveying mechanism arranged in sequence between each of the above four components. The injection molding mechanism includes a rotating seat rotatable about its own axis on the frame, a plurality of injection molding units arranged sequentially and spaced apart on the rotating seat along the circumferential direction, an extrusion mechanism on the rotating seat for storing injection molding plastic, and a plurality of delivery pipes corresponding one-to-one between the extrusion mechanism and the injection molding units. The injection molding unit includes an injection support mounted on the rotating seat, a lower injection mold mounted on the injection support or the rotating seat, an upper injection mold mounted on the injection support and located above the lower injection mold, and a lifting rod mounted on the injection support. The upper injection mold and the lower injection mold are respectively provided with an upper through hole and a lower through hole for the lifting rod to pass through. The injection molding upper mold includes a cylindrical outer mold and at least two inner mold segments arranged in the outer mold along the circumferential direction. The injection molding upper mold also includes at least two first elastic members connected one-to-one between the outer mold and the inner mold segments, and an air inlet hole opened on the outer mold. The inner mold segments are used to move inward to stretch the first elastic members when air is introduced through the air inlet hole, so that the outer circumferential surface of the inner mold segment is spaced apart from the inner circumferential surface of the outer mold. The inner mold segments are also used to move outward to abut against the outer mold when air is cut off through the air inlet hole. The first conveying mechanism includes a transition hub rotatable about its own axis and mounted on the frame, and a plurality of clamping units arranged at intervals along the circumferential direction on the transition hub. The clamping unit is vertically mounted on the transition hub and is used to clamp the preform in the upper injection mold to pull the preform downward away from the upper injection mold before it abuts against the inner mold flap.

3. The fully rotary injection-blowing-filling-seal integrated machine according to claim 1 or the fully rotary injection-blowing-applying-filling-seal integrated machine according to claim 2, characterized in that: The inner mold flap has an initial position and an injection position, and the inner mold flap is used to switch from the initial position to the injection position when air is introduced through the air inlet; When the inner mold lobe is in the initial position, at least two inner mold lobes are spaced apart from each other. When the inner mold flap is in the injection position, at least two inner mold flaps abut against each other in the circumferential direction and surround each other to form a cylindrical inner mold.

4. The fully rotary injection-blowing-filling-seal integrated machine according to claim 1 or the fully rotary injection-blowing-applying-filling-seal integrated machine according to claim 2, characterized in that: The inner mold flap includes a first arc-shaped inner surface and a second arc-shaped inner surface, the radius of the first arc-shaped inner surface is smaller than the radius of the second arc-shaped inner surface, and the first arc-shaped inner surface is located above the second arc-shaped inner surface.

5. The fully rotary injection-blowing-filling-seal integrated machine according to claim 1 or the fully rotary injection-blowing-applying-filling-seal integrated machine according to claim 2, characterized in that: The first elastic element is a tension spring, and the elastic extension and contraction direction of the tension spring is parallel to the arrangement direction of the inner mold flap and the outer mold, and perpendicular to the lifting and lowering direction of the injection upper mold.

6. The fully rotary injection-blowing-filling-seal integrated machine according to claim 1 or the fully rotary injection-blowing-applying-filling-seal integrated machine according to claim 2, characterized in that: Of the outer mold and the inner mold lobe, the upper injection mold further includes a guide groove provided on one of them and a guide member provided on the other for extending into the guide groove.

7. The fully rotary injection-blowing-filling-seal integrated machine according to claim 1 or the fully rotary injection-blowing-applying-filling-seal integrated machine according to claim 2, characterized in that: The fully rotary injection blow molding and filling machine or the fully rotary injection blow molding and filling machine further includes a first lifting cam mounted on the frame. The injection unit also includes a first roller rotatably mounted on the outside of the upper injection mold about its own axis. The first roller is used to abut against the upper surface of the first lifting cam through its outer circumferential surface.

8. The fully rotary injection-blowing-filling-seal integrated machine or the fully rotary injection-blowing-applying-filling-seal integrated machine according to claim 7, characterized in that: The injection molding unit further includes a second elastic element at its upper and lower ends for connecting the upper injection mold and the lower injection mold, respectively. The second elastic element is used to provide an elastic restoring force that pulls the upper injection mold downward to press the first roller against the first lifting cam.

9. The fully rotary injection-blowing-filling-seal integrated machine according to claim 1 or the fully rotary injection-blowing-applying-filling-seal integrated machine according to claim 2, characterized in that: The clamping unit includes a linear guide rail that is vertically mounted on the transition hub, a transition manipulator mounted on the linear guide rail, a second roller that is rotatable about its own axis and mounted on the linear guide rail or the transition manipulator, and a second lifting cam mounted on the frame. The second roller is used to abut against the upper surface of the second lifting cam through its outer circumferential surface.

10. The fully rotary injection-blowing-filling-seal integrated machine according to claim 1 or the fully rotary injection-blowing-applying-filling-seal integrated machine according to claim 2, characterized in that: The upper injection mold is provided with a cooler for cooling the part of the preform held by the transition robot, and the outer side of the transition hub is provided with a heat spreader for heating the preform to make its temperature uniform throughout. The transition robot is used to hold the preform when it rises to the highest point.

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