One-step four-station injection stretch blow molding device

Abstract

The present invention relates to the technical field of plastic processing, and discloses a one-step four-station injection stretch blow molding device, which includes a frame, a closing plate 1 and a closing plate 2 for installing a mold and realizing the closing and separation of the mold, and a first bottle mold, a second bottle mold, a third bottle mold and a fourth bottle mold as a mold assembly to form the shape of a preform. The one-step four-station injection stretch blow molding device, through the organic combination of a frame, a panel and a rotating conveying mechanism, closely connects the preform molding station, the preform heating station, the blow molding station and the container removal station, thereby realizing the efficient linkage of the one-step four stations, the setting of the closing mechanism and the locking mechanism effectively improves the accuracy of the mold opening and closing, the design of the air blowing blocking mechanism ensures the stability of the blow molding process, and the auxiliary heating temperature control mechanism can accurately heat the preform, so that the heating uniformity and production efficiency are significantly improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic processing, in particular to a one-step four-station injection stretch blow molding device. Background Art

[0002] At present, plastic bottles are mainly produced by blow molding machines. The existing one-step four-station blow molding machines generally include a preform injection station, a pre-blowing and heating station, a stretch blow molding station, and a bottle discharging station. The pre-blowing and heating stations of the existing blow molding machines are mostly fixed on the panel and adjusted according to the height of different containers, which is troublesome to adjust. The existing double-row blow molding mold has low linkage accuracy during molding. When the hydraulic cylinder drives the blow molding mold to close and open the mold, it is easy to shake, and the clamping force is unstable, which affects the mold line on the outer surface of the container and affects the yield rate. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The object of the present invention is to provide a one-step four-station injection stretch blow molding device to solve the problems of the existing one-step four-station bottle blowing machine mentioned in the above background technology that the adjustment is difficult and the linkage precision is low.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a one-step four-station injection stretch blow molding device, the one-step four-station injection stretch blow molding device comprises a frame, a panel is arranged at the upper end of the frame, the panel comprises a preform molding station, a preform heating station, a blow molding station and a container taking-out station are arranged at the upper end of the frame, an injection mechanism is arranged at the upper end of the frame, a mold clamping mechanism is arranged at the upper end of the panel, the mold clamping mechanism comprises a hydraulic cylinder, a hydraulic cylinder is arranged at the upper end of the panel, a hydraulic cylinder seat is arranged at the right end of the hydraulic cylinder, a clamping plate 1 is arranged on the right side of the hydraulic cylinder seat, a first bottle mold is arranged at the right end of the clamping plate 1, a second bottle mold is arranged at the right end of the first bottle mold, and a A third bottle mold, a fourth bottle mold is arranged on the right end of the third bottle mold, a tension connecting rod is arranged between the second bottle mold and the third bottle mold, a mold opening limit is arranged on the right end of the fourth bottle mold, a guide rod is arranged at the front end of the hydraulic cylinder seat, the frame provides support and installation basis for the overall device, the panel serves as an external operation interface and a fixed structure, the injection mechanism is used to inject molten plastic into the mold to form a bottle blank, the clamping mechanism completes the molding of the bottle blank by driving the mold to realize opening and closing movements, the hydraulic cylinder provides power for clamping and opening the mold, the hydraulic cylinder seat is used to fix the hydraulic cylinder to keep its operation stable, the clamping plate 1 and the clamping plate 2 are used to install the mold and realize the closing and separation of the mold, and the first bottle mold, the second bottle mold, the third bottle mold and the fourth bottle mold are used as a mold assembly to form the shape of the bottle blank.

[0007] Preferably, a guide rail plate is provided on the lower side of the guide rod, a second closing plate is provided on the right end of the guide rail plate, a synchronous gear is provided on the upper side of the guide rail plate, and a synchronous long rack is provided on the lower end of the synchronous gear.

[0008] Preferably, a synchronous short rack is provided at the upper end of the synchronous gear, a synchronizer mounting seat is provided on the outer side of the synchronous short rack, and a clamping mechanism is provided at the top end of the mold clamping mechanism.

[0009] Preferably, an air blowing and locking mechanism is provided on the lower side of the mold locking mechanism, and an auxiliary heating and temperature control mechanism is provided on the right side of the air blowing and locking mechanism.

[0010] Preferably, the auxiliary heating temperature control mechanism comprises an auxiliary heating cylinder, a cylinder fixing plate is arranged at the lower end of the auxiliary heating cylinder, a cylinder stretching plate is arranged at the lower end of the cylinder fixing plate, and a rotating plate is arranged at the lower end of the cylinder stretching plate.

[0011] Preferably, an auxiliary heating core is provided at the lower end of the rotating plate, and a copper heating ring is provided on the outer ring of the auxiliary heating core.

[0012] Preferably, a heating device mounting plate is provided at the lower end of the auxiliary heating core, and an auxiliary heating Green column is provided at the lower end of the heating device mounting plate.

[0013] Preferably, an auxiliary heating cylinder fixing plate is provided at the lower end of the auxiliary heating Green column, and an auxiliary heating cylinder is provided at the lower end of the auxiliary heating cylinder fixing plate.

[0014] Preferably, a demoulding mechanism is provided at the lower side of the mold locking mechanism, a rotating conveying mechanism is provided at the right side of the mold locking mechanism, and a heating device is provided at the right side of the rotating conveying mechanism.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This one-step four-station injection stretch blow molding device, through the organic combination of the frame, panel and rotating conveying mechanism, closely connects the preform molding station, preform heating station, blow molding station and container removal station, realizing the efficient linkage of the one-step four stations. The setting of the mold clamping mechanism and the mold locking mechanism effectively improves the accuracy of mold opening and closing. The design of the air blowing and sealing mechanism ensures the stability of the blow molding process. At the same time, the auxiliary heating temperature control mechanism can accurately heat the preform, so that the heating uniformity and production efficiency are significantly improved;

[0017] 2. The one-step four-station injection stretch blow molding device, the cooperation between the hydraulic cylinder and the clamping plate 1 and the clamping plate 2, realizes the synchronous opening and closing of the mold through the synchronous gear, the synchronous long rack and the synchronous short rack, which ensures the stability and accuracy of the clamping process. The setting of the auxiliary heating cylinder and the cylinder stretching plate enables the auxiliary heating core to flexibly adjust the position to adapt to different sizes of preforms. The heating device provides efficient temperature control function through the copper heating ring. The design of the demoulding mechanism simplifies the removal operation of the finished container. The modular layout of the overall device reduces the complexity of operation;

[0018] 3. This one-step four-station injection stretch blow molding device has a compact functional layout. The frame and hydraulic cylinder seat provide a stable support foundation. The reasonable connection between the panel and the synchronizer mounting seat enhances the overall stability of the device. The layout between the components has been optimized and designed, occupying a small space but with powerful performance. The combination of the guide rod and the guide plate ensures the smooth operation of the preform and the finished container during transportation. The setting of the anti-slip pad further improves the clamping reliability of the device. The overall device not only saves production space, but also improves the operating efficiency of the equipment and the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention;

[0020] Figure 2 It is a front view of the overall structure of the device of the present invention;

[0021] Figure 3 It is a top cross-sectional view of the structure of the connection between the placement racks of the molding machine body of the present invention;

[0022] Figure 4 It is a top cross-sectional view of the structure of the connection between the placement racks of the molding machine body of the present invention;

[0023] Figure 5 It is a structural cross-sectional view of the injection mechanism of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the mold clamping mechanism of the present invention;

[0025] Figure 7 It is a structural cross-sectional view of the auxiliary heating temperature control mechanism of the present invention.

[0026] In the figure: 1, frame; 2, panel; 201, preform molding station; 202, preform heating station; 203, blow molding station; 204, container removal station; 3, injection mechanism; 4, mold closing mechanism; 401, hydraulic cylinder; 402, hydraulic cylinder seat; 403, mold closing plate 1; 404, first bottle mold; 405, second bottle mold; 406, third bottle mold; 407, fourth bottle mold; 408, tension connecting rod; 409, mold opening limit; 410, guide rod; 411, guide plate; 412, mold closing plate 2; 413, Synchronous gear; 414, synchronous long rack; 415, synchronous short rack; 416, synchronizer mounting seat; 5, clamping mechanism; 6, air blowing blocking mechanism; 7, auxiliary heating temperature control mechanism; 701, auxiliary heating cylinder; 702, cylinder fixing plate; 703, cylinder stretching plate; 704, rotating plate; 705, auxiliary heating core; 706, copper heating ring; 707, heating device mounting plate; 708, auxiliary heating Green column; 709, auxiliary heating cylinder fixing plate; 710, auxiliary heating cylinder; 8, demoulding mechanism; 9, rotating conveying mechanism; 10, heating device. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 4The present invention provides a technical solution: a one-step four-station injection stretch blow molding device, the one-step four-station injection stretch blow molding device comprises a frame 1, a panel 2 is arranged at the upper end of the frame 1, the panel 2 comprises a preform molding station 201, a preform heating station 202, a blow molding station 203, and a container taking-out station 204 are arranged at the upper end of the frame 1, an injection mechanism 3 is arranged at the upper end of the frame 1, a clamping mechanism 4 is arranged at the upper end of the panel 2, the clamping mechanism 4 comprises a hydraulic cylinder 401, and a hydraulic cylinder 40 is arranged at the upper end of the panel 2. 1. A hydraulic cylinder seat 402 is disposed at the right end of the hydraulic cylinder 401, a closing plate 403 is disposed on the right side of the hydraulic cylinder seat 402, a first bottle mold 404 is disposed at the right end of the closing plate 403, a second bottle mold 405 is disposed at the right end of the first bottle mold 404, a third bottle mold 406 is disposed at the right end of the second bottle mold 405, a fourth bottle mold 407 is disposed at the right end of the third bottle mold 406, a tension connecting rod 408 is disposed between the second bottle mold 405 and the third bottle mold 406, and a mold opening limit 408 is disposed at the right end of the fourth bottle mold 407. 9. A guide rod 410 is provided at the front end of the hydraulic cylinder seat 402, a guide plate 411 is provided at the lower side of the guide rod 410, a second clamping plate 412 is provided at the right end of the guide plate 411, a synchronous gear 413 is provided at the upper side of the guide plate 411, and a synchronous long rack 414 is provided at the lower end of the synchronous gear 413. The frame 1 provides support for the entire device through its solid frame, and the panel 2 provides a stable platform for operating and installing other components. The injection mechanism 3 injects the molten plastic into the mold to form a preform, and the pressure and speed are precisely controlled to achieve the desired effect. The mold clamping mechanism 4 drives the clamping plate 1 403 and the clamping plate 2 412 through the hydraulic cylinder 401 to realize the opening and closing of the mold. The hydraulic cylinder 401 generates stable mold opening and closing power through hydraulic transmission. The hydraulic cylinder seat 402 fixes the hydraulic cylinder and keeps the operation stable. The clamping plate 1 403 and the clamping plate 2 412 are used to install the mold and ensure the synchronization of the mold when opening and closing. The first bottle mold 404, the second bottle mold 405, the third bottle mold 406 and the fourth bottle mold 407 are used for the preliminary molding of the plastic bottle blank and ensure the consistency of product size.

[0029] A synchronous short rack 415 is arranged at the upper end of the synchronous gear 413, and a synchronizer mounting seat 416 is arranged on the outer side of the synchronous short rack 415. A clamping mechanism 5 is arranged at the top of the mold clamping mechanism 4, and a blowing blocking mechanism 6 is arranged at the lower side of the clamping mechanism 5. An auxiliary heating temperature control mechanism 7 is arranged on the right side of the blowing blocking mechanism 6. The auxiliary heating temperature control mechanism 7 includes an auxiliary heating cylinder 701, and a cylinder fixing plate 702 is arranged at the lower end of the auxiliary heating cylinder 701. A cylinder stretching plate 703 is arranged at the lower end of the cylinder fixing plate 702, and a rotating plate 704 is arranged at the lower end of the cylinder stretching plate 703. An auxiliary heating core 705 is arranged at the lower end of the rotating plate 704, and a copper heating ring 706 is arranged on the outer ring of the auxiliary heating core 705. The clamping mechanism 5 synchronizes the long rack 414 and the synchronous gear 413. The short-step rack 415 coordinates the opening and closing movement of the mold and provides the necessary locking force. The air blowing blocking mechanism 6 injects gas and expands the bottle blank by closing the top of the bottle blank to achieve the purpose of blow molding. The rotating conveying mechanism 9 drives the bottle blank to move smoothly between each station to ensure the continuity of the work process. The auxiliary heating temperature control mechanism 7 adjusts the position of the auxiliary heating core 705 through the auxiliary heating cylinder 701 to achieve precise heating. The cylinder fixing plate 702 fixes the auxiliary heating cylinder to ensure stable operation. The cylinder stretching plate 703 connects the auxiliary heating cylinder and the auxiliary heating component to achieve stretching and adjustment. The rotating plate 704 provides a rotation adjustment function for the auxiliary heating core. The auxiliary heating core 705 provides direct heat through the copper heating ring 706 to evenly heat the bottle blank. The copper heating ring 706 serves as a heat source to maintain a continuous and stable heating temperature.

[0030] A heating device mounting plate 707 is provided at the lower end of the auxiliary heating core 705, an auxiliary heating Green column 708 is provided at the lower end of the auxiliary heating Green column 708, an auxiliary heating cylinder fixing plate 709 is provided at the lower end of the auxiliary heating cylinder fixing plate 709, an auxiliary heating cylinder 710 is provided at the lower end of the auxiliary heating cylinder fixing plate 709, a demolding mechanism 8 is provided at the lower side of the clamping mechanism 5, a rotating conveying mechanism 9 is provided at the right side of the clamping mechanism 5, a heating device 10 is provided at the right side of the rotating conveying mechanism 9, the heating device 10 heats the mold and the preform by providing thermal energy to ensure the molding quality, the demolding mechanism 8 smoothly removes the molded container from the mold by mechanical drive, the guide plate 411 provides guiding support for the conveying of the preform to prevent movement deviation, and the anti-slip pad 19 reduces the sliding of the preform during transportation by increasing friction.

[0031] Working principle: the frame 1 is used as an integral supporting structure, carrying the panel 2 and the rotating conveying mechanism 9, the rotating conveying mechanism 9 drives the preform to move in sequence between the preform forming station 201, the preform heating station 202, the blow molding station 203 and the container taking-out station 204, the injection mechanism 3 performs injection molding on the preform at the preform forming station 201, the clamping mechanism 4 includes a hydraulic cylinder 401, a hydraulic cylinder seat 402, a clamping plate 1 403 and a clamping plate 2 412, the hydraulic cylinder 401 drives the clamping plate 1 403 and the clamping plate 2 412 to open and close, the first bottle mold 404, the second bottle mold 405, the third bottle mold 406 and the fourth bottle mold 407 are installed between the clamping plate 1 403 and the clamping plate 2 412 to realize mold closing molding, the clamping mechanism 5 is connected to the synchronous gear 41 3. The synchronous long rack 414 and the synchronous short rack 415 ensure the synchronous opening and closing of the mold. The air blowing blocking mechanism 6 is located at the blow molding station 203 to perform blow molding operation on the bottle blank. The auxiliary heating temperature control mechanism 7 includes an auxiliary heating cylinder 701, a cylinder fixing plate 702, a cylinder stretching plate 703, a rotating plate 704, an auxiliary heating core 705 and a copper heating ring 706. The bottle blank is heated at the bottle blank heating station 202. The heating device 10 is fixed on the frame 1 through the heating device mounting plate 707 and the auxiliary heating cylinder fixing plate 709 to provide a heat source for the auxiliary heating core 705. The demoulding mechanism 8 is linked with the container removal station 204 through the tension connecting rod 408 and the guide rod 410 to realize container demoulding. The guide plate 411 cooperates with the anti-slip pad 19 to ensure the stability of the transportation of the bottle blank and the finished container between the stations.

[0032] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A one-step four-station injection stretch blow molding device, the one-step four-station injection stretch blow molding device comprising a frame (1), characterized in that: The upper end of the frame (1) is provided with a panel (2), the panel (2) comprising a preform molding station (201), the upper end of the frame (1) is provided with a preform heating station (202), a blow molding station (203), and a container removal station (204), the upper end of the frame (1) is provided with an injection mechanism (3), the upper end of the panel (2) is provided with a mold clamping mechanism (4), the mold clamping mechanism (4) comprises a hydraulic cylinder (401), the upper end of the panel (2) is provided with a hydraulic cylinder (401), the right end of the hydraulic cylinder (401) is provided with a hydraulic cylinder seat (402), the right end of the hydraulic cylinder seat (402) is provided with a hydraulic cylinder seat (402), and the right end of the hydraulic cylinder seat (402) is provided with a hydraulic cylinder seat (402). A closing plate (403) is provided on the side thereof, a first bottle mold (404) is provided on the right end of the closing plate (403), a second bottle mold (405) is provided on the right end of the first bottle mold (404), a third bottle mold (406) is provided on the right end of the second bottle mold (405), a fourth bottle mold (407) is provided on the right end of the third bottle mold (406), a tension connecting rod (408) is provided between the second bottle mold (405) and the third bottle mold (406), a mold opening limiter (409) is provided on the right end of the fourth bottle mold (407), and a guide rod (410) is provided at the front end of the hydraulic cylinder seat (402).

2. A one-step four-station injection stretch blow molding device according to claim 1, characterized in that: A guide rail plate (411) is provided at the lower side of the guide rod (410), a second clamping plate (412) is provided at the right end of the guide rail plate (411), a synchronous gear (413) is provided at the upper side of the guide rail plate (411), and a synchronous long rack (414) is provided at the lower end of the synchronous gear (413).

3. A one-step four-station injection stretch blow molding device according to claim 2, characterized in that: A synchronous short rack (415) is provided at the upper end of the synchronous gear (413), a synchronizer mounting seat (416) is provided on the outer side of the synchronous short rack (415), and a clamping mechanism (5) is provided at the top end of the mold clamping mechanism (4).

4. A one-step four-station injection stretch blow molding device according to claim 3, characterized in that: An air blowing and blocking mechanism (6) is arranged on the lower side of the mold locking mechanism (5), and an auxiliary heating and temperature control mechanism (7) is arranged on the right side of the air blowing and blocking mechanism (6).

5. A one-step four-station injection stretch blow molding device according to claim 4, characterized in that: The auxiliary heating temperature control mechanism (7) comprises an auxiliary heating cylinder (701), a cylinder fixing plate (702) is arranged at the lower end of the auxiliary heating cylinder (701), a cylinder stretching plate (703) is arranged at the lower end of the cylinder fixing plate (702), and a rotating plate (704) is arranged at the lower end of the cylinder stretching plate (703).

6. A one-step four-station injection stretch blow molding device according to claim 5, characterized in that: An auxiliary heating core (705) is provided at the lower end of the rotating plate (704), and a copper heating ring (706) is provided on the outer ring of the auxiliary heating core (705).

7. A one-step four-station injection stretch blow molding device according to claim 6, characterized in that: A heating device mounting plate (707) is provided at the lower end of the auxiliary heating core (705), and an auxiliary heating Green column (708) is provided at the lower end of the heating device mounting plate (707).

8. A one-step four-station injection stretch blow molding device according to claim 7, characterized in that: An auxiliary heating cylinder fixing plate (709) is disposed at the lower end of the auxiliary heating Green column (708), and an auxiliary heating cylinder (710) is disposed at the lower end of the auxiliary heating cylinder fixing plate (709).

9. The one-step four-station injection stretch blow molding device according to claim 3, characterized in that: A demoulding mechanism (8) is arranged at the lower side of the mold locking mechanism (5), a rotating conveying mechanism (9) is arranged at the right side of the mold locking mechanism (5), and a heating device (10) is arranged at the right side of the rotating conveying mechanism (9).

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