Molded pulp manufacturing mold for bottle-shaped container
By designing a bottle-type pulp molding mold using hydraulic rod, membrane shell and filter mesh mold, combined with vacuum and hot air system, the problem of uneven absorption of slurry in the cavity is solved, and the uniformity of blank thickness and processing quality are improved.
Patent Information
- Application Number
- CN202422472067.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-10-14
AI Technical Summary
During the pulp molding process, it is difficult for existing molds to achieve uniform absorption of slurry inside the cavity, resulting in uneven thickness of the blank and reducing the processing quality.
A pulp molding mold for bottle-type container is designed, using a membrane shell structure driven by hydraulic rods and a filter mesh mold. Combined with a vacuum and hot air system, suction and hot air are generated through the through holes on the horizontal pipe, hollow half ring and vertical pipe, so as to achieve uniform adsorption of the slurry and uniform molding of the blank.
Through this mold, the paper fibers in the slurry can be evenly adsorbed on the mold, forming a bottle blank with uniform thickness, improving the quality of pulp molding, and quickly demolding through hot air.
Smart Images
Figure CN223033759U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pulp molding, in particular to a pulp molding production mold for a bottle-shaped container. Background Technique
[0002] Pulp molding is a three-dimensional papermaking technology. It uses waste paper as raw material and shapes paper products of a certain shape by a special mold on a molding machine. Its production process is completed by pulping, adsorption molding, and drying and shaping processes, and is used for protective packaging or food service trays and beverage carriers. Other typical uses are end caps, trays, plates, bowls, and flip-top containers;
[0003] In the adsorption molding process, with a filter screen as the filtering medium, under the action of pressure difference, the fluid in the pulp passes through the filter screen, thus realizing solid-liquid separation. The liquid passing through the filter screen is called filtrate, and the solid particle fibers retained on the filter screen are the blank parts. However, the existing pulp suction holes are fixed at a certain position for use, so only the slurry at the specified position can be adsorbed, which will cause uneven thickness of the blank parts and reduce the quality of pulp molding processing. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a pulp molding production mold for a bottle-shaped container, which solves the problem that it is inconvenient to evenly absorb the slurry inside the cavity during the pulp molding processing of the bottle-shaped container, and it is easy to cause uneven thickness of the blank parts.
[0005] To achieve the purpose of facilitating the uniform absorption of the slurry inside the cavity during the pulp molding processing of the bottle-shaped container and not easily causing uneven thickness of the blank parts, the utility model provides the following technical solution: a pulp molding production mold for a bottle-shaped container, including a processing table, side brackets are fixed on both sides of the processing table, hydraulic rods are installed on the side brackets, a left film shell is fixed on the left hydraulic rod, a right film shell is fixed on the right hydraulic rod, a positive and negative rotation motor is installed on the left film shell and the right film shell, a mold cavity is opened between the left film shell and the right film shell, inner mold grooves are opened inside the left film shell and the right film shell, a gas guide cylinder seat is fixed on the upper surface of the processing table, and a pulp suction pipe and a blow molding pipe are fixed at the bottom end of the gas guide cylinder seat;
[0006] Two groups of left and right insertion ports are opened on the surface of the gas guide cylinder seat, a pulp suction joint is movably inserted into the left insertion port, a blow molding joint is movably inserted into the right insertion port, a cross pipe is fixed on the pulp suction joint and the blow molding joint, a left hollow semi-ring is fixed on the left cross pipe, a right hollow semi-ring is fixed on the right cross pipe, a receiving pipe seat is fixed on the upper and lower groups of the left hollow semi-ring and the right hollow semi-ring, a vertical pipe rotates between the two receiving pipe seats, and through holes are opened on the cross pipe, the left hollow semi-ring, the right hollow semi-ring and the vertical pipe;
[0007] A driving bevel gear is fixed to the output end of the forward and reverse motor, a supporting ring seat is fixed to the inner wall of the inner mold groove, a bevel gear ring rotates on the supporting ring seat, a driven bevel gear is fixed to the vertical pipe, and a bottle blank is arranged inside the left membrane shell and the right membrane shell.
[0008] Preferably, the mold liner is formed by a cavity between a left membrane shell and a right membrane shell, and the mold liner is a filter structure.
[0009] Preferably, the slurry suction pipe is connected to an external vacuum negative pressure system, and the blowing pipe is connected to an external hot air blowing system.
[0010] Preferably, the left hollow half ring and the right hollow half ring are connected to each other via a transverse tube, the left hollow half ring is movably connected to the left plug-in interface via the transverse tube and the slurry suction joint, and the right hollow half ring is movably connected to the right plug-in interface via the transverse tube and the blow molding joint.
[0011] Preferably, the left hollow half ring and the right hollow half ring on the lower side are fixedly connected to the bottom surface of the inner mold groove, the left hollow half ring and the right hollow half ring on the upper side are fixedly connected to the top surface of the inner mold groove, the vertical tube is rotatably connected to the supporting tube seats on its upper and lower sides, and multiple groups of vertical tubes are arranged along the arc direction of the left hollow half ring and the right hollow half ring.
[0012] Preferably, the through hole is opened on the upper surface of the lower end transverse tube, the left hollow semi-ring and the right hollow semi-ring, and the through hole is opened on the lower surface of the upper end transverse tube, the left hollow semi-ring and the right hollow semi-ring.
[0013] Preferably, the through holes are formed on the inner surface of the vertical tube, and the through holes on the vertical tube at different positions have different heights.
[0014] Preferably, the driving bevel gear is meshed with a bevel gear ring, the bevel gear ring is meshed with a driven bevel gear, the bevel gear ring is rotatably connected to a support ring seat, and the bevel gear rings on the left and right sides are not in contact.
[0015] Compared with the prior art, the utility model provides a pulp molding mold for a bottle-shaped container, which has the following beneficial effects:
[0016] 1. The pulp molding mold for the bottle-shaped container is prepared by pouring slurry into the mold liner and then opening the external vacuum negative pressure system so that the through holes on the horizontal tube, the left hollow half ring, the right hollow half ring and the vertical tube generate suction. Under the filtration of the mold liner, the moisture in the slurry in the mold liner is sucked away, and the paper fibers in the pulp cover the mold liner to form a bottle-shaped blank having the same shape and structure as the mold liner. At the same time, the through holes on the vertical tube swing back and forth and generate suction on the surface of the mold liner at different angles, so that the paper fibers in the slurry can be evenly adsorbed on the mold liner, so that the thickness of the surface of the bottle-shaped blank is more uniform.
[0017] 2. For the pulp molding production mold of the bottle-shaped container, after the bottle-shaped blank is adsorbed and formed, the left mold shell and the right mold shell move outward for demolding. At the same time, the external hot air blowing system is turned on, so that hot air is generated in the through holes of the horizontal pipe, the left hollow semi-ring, the right hollow semi-ring and the vertical pipe. At this time, on the one hand, the hot air generated by the through holes can dry the bottle-shaped blank, and on the other hand, the hot air generated by the through holes can generate a thrust on the bottle-shaped blank, so that the bottle-shaped blank can be quickly demolded from the mold core. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic structural diagram of the present utility model;
[0019] Figure 2 It is a partial cross-sectional view of the structure of the present utility model;
[0020] Figure 3 It is a partial cross-sectional view of the left mold shell and the right mold shell of the structure of the present utility model;
[0021] Figure 4 For the present utility model Figure 3 A partial enlarged schematic view of the structure at A in the present utility model;
[0022] Figure 5 For the present utility model Figure 3 A partial enlarged schematic view of the structure at B in the present utility model;
[0023] Figure 6 It is a combined view of the bottle-shaped blank, the left mold shell and the right mold shell of the structure of the present utility model;
[0024] Figure 7 It is an exploded view of the bottle-shaped blank, the left mold shell and the right mold shell of the structure of the present utility model.
[0025] Wherein: 1. Processing table; 2. Side bracket; 3. Hydraulic rod; 4. Left mold shell; 5. Right mold shell; 6. Forward and reverse motor; 7. Mold core; 8. Inner mold groove; 9. Air guide cylinder seat; 10. Slurry suction pipe; 11. Blowing pipe; 12. Insertion interface; 13. Slurry suction joint; 14. Blowing joint; 15. Horizontal pipe; 16. Left hollow semi-ring; 17. Right hollow semi-ring; 18. Connecting pipe seat; 19. Vertical pipe; 20. Through hole; 21. Driving bevel gear; 22. Support ring seat; 23. Bevel gear ring; 24. Driven bevel gear; 25. Bottle-shaped blank. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0027] Please refer to Figure 1-7 Figure 1-7 , the present utility model provides a pulp molding production mold for a bottle-shaped container, including a processing table 1, side brackets 2 are fixed on both sides of the processing table 1, a hydraulic rod 3 is installed on the side brackets 2, a left mold shell 4 is fixed on the left hydraulic rod 3, a right mold shell 5 is fixed on the right hydraulic rod 3, a positive and negative rotation motor 6 is installed on the left mold shell 4 and the right mold shell 5, a mold cavity 7 is provided between the left mold shell 4 and the right mold shell 5, inner mold grooves 8 are provided inside the left mold shell 4 and the right mold shell 5, an air guide cylinder base 9 is fixed on the upper surface of the processing table 1, a slurry suction pipe 10 and a blow molding pipe 11 are fixed at the bottom end of the air guide cylinder base 9;
[0028]
[0028] The surface of the air guide cylinder base 9 is provided with two groups of left and right insertion ports 12, a slurry suction joint 13 is movably inserted inside the left insertion port 12, a blow molding joint 14 is movably inserted inside the right insertion port 12, a horizontal pipe 15 is fixed on the slurry suction joint 13 and the blow molding joint 14, a left hollow semi-ring 16 is fixed on the left horizontal pipe 15, a right hollow semi-ring 17 is fixed on the right horizontal pipe 15, a receiving pipe base 18 is fixed on the upper and lower two groups of left hollow semi-rings 16 and right hollow semi-rings 17, a vertical pipe 19 is rotated between the two receiving pipe bases 18, and through holes 20 are provided on the horizontal pipe 15, the left hollow semi-ring 16, the right hollow semi-ring 17 and the vertical pipe 19;
[0029]
[0029] The output end of the positive and negative rotation motor 6 is fixed with a driving bevel gear 21, a support ring base 22 is fixed on the inner wall of the inner mold groove 8, a bevel gear ring 23 is rotated on the support ring base 22, a driven bevel gear 24 is fixed on the vertical pipe 19, and a bottle-shaped blank 25 is arranged inside the left mold shell 4 and the right mold shell 5. By pouring the slurry for pulp molding processing into the mold cavity 7 formed between the left mold shell 4 and the right mold shell 5, first, the moisture in the slurry is sucked away by an external vacuum negative pressure system, so that the paper fibers remain on the mold cavity 7 to form the bottle-shaped blank 25, then the bottle-shaped blank 25 is dried and fixed into shape by an external hot air blow molding system, and then the bottle-shaped blank 25 is demolded.
[0030]
[0030] Furthermore, the mold cavity 7 is formed by the cavity between the left mold shell 4 and the right mold shell 5. The mold cavity 7 is a filter screen structure. When the left mold shell 4 and the right mold shell 5 are closed, a complete mold cavity 7 is formed at this time, and the mold cavity 7 is a filter screen structure, which is convenient for the moisture in the slurry to be discharged after being filtered by the filter screen, while the paper fibers remain on the mold cavity 7 to form the bottle-shaped blank 25.
[0031] Further, the slurry suction pipe 10 is connected to an external vacuum negative pressure system, and the blow molding pipe 11 is connected to an external hot air blow molding system, facilitating the external vacuum negative pressure system to generate suction force through the slurry suction pipe 10, the air guide cylinder seat 9, the slurry suction joint 13, and the blow molding joint 14 on the through holes 20 of the horizontal pipe 15, the left hollow half ring 16, the right hollow half ring 17, and the vertical pipe 19, and facilitating the external hot air blow molding system to generate hot air through the blow molding pipe 11, the air guide cylinder seat 9, the slurry suction joint 13, and the blow molding joint 14 on the through holes 20 of the horizontal pipe 15, the left hollow half ring 16, the right hollow half ring 17, and the vertical pipe 19.
[0032] Further, the left hollow half ring 16 and the right hollow half ring 17 are connected to each other through the horizontal pipe 15. The left hollow half ring 16 is movably inserted into the left plug interface 12 through the horizontal pipe 15 and the slurry suction joint 13, and the right hollow half ring 17 is movably inserted into the right plug interface 12 through the horizontal pipe 15 and the blow molding joint 14. When the left mold shell 4 and the right mold shell 5 are clamped, at this time, the left hollow half ring 16 contacts the right hollow half ring 17, and the slurry suction joint 13 and the blow molding joint 14 are inserted into the plug interface 12 and communicated with the air guide cylinder seat 9. Therefore, the air guide cylinder seat 9 can be communicated with the left hollow half ring 16 and the right hollow half ring 17 on its two sides.
[0033] Further, the lower left hollow half ring 16 and the right hollow half ring 17 are fixedly connected to the bottom surface of the inner mold cavity 8, the upper left hollow half ring 16 and the right hollow half ring 17 are fixedly connected to the top surface of the inner mold cavity 8, the vertical pipe 19 is rotatably connected to the receiving pipe seats 18 on its upper and lower sides, and a plurality of groups of the vertical pipes 19 are arranged along the arc direction of the left hollow half ring 16 and the right hollow half ring 17. The upper and lower two groups of left hollow half rings 16 are fixedly connected to the left mold shell 4, the upper and lower two groups of right hollow half rings 17 are fixedly connected to the right mold shell 5, and the ends of the left hollow half ring 16 and the right hollow half ring 17 close to each other are sealed, facilitating the horizontal pipe 15 to convey negative pressure suction force or hot air blowing force into the interior of the vertical pipes 19 at different positions through the left hollow half ring 16 and the right hollow half ring 17.
[0034] Further, the through holes 20 are opened on the upper side surfaces of the lower horizontal pipe 15, the left hollow half ring 16, and the right hollow half ring 17, and the through holes 20 are opened on the lower side surfaces of the upper horizontal pipe 15, the left hollow half ring 16, and the right hollow half ring 17, facilitating the through holes 20 on the upper side surfaces of the lower horizontal pipe 15, the left hollow half ring 16, and the right hollow half ring 17 to generate negative pressure suction force or hot air blowing force on the bottom end of the mold core 7 from below, and facilitating the through holes 20 on the lower side surfaces of the upper horizontal pipe 15, the left hollow half ring 16, and the right hollow half ring 17 to generate negative pressure suction force or hot air blowing force on the top end of the mold core 7 from above.
[0035] Further, the through holes 20 are formed in the inner surface of the vertical pipe 19, and the heights of the through holes 20 on the vertical pipes 19 at different positions are different, so that negative pressure suction or hot air blowing force can be generated on different positions of the surface of the mold bladder 7 through the through holes 20 with different heights on the vertical pipes 19 at different positions.
[0036] Further, the driving bevel gear 21 meshes with the bevel gear ring 23, the bevel gear ring 23 meshes with the driven bevel gear 24, the bevel gear ring 23 is rotatably connected to the support ring seat 22, and the bevel gear rings 23 on the left and right sides do not contact each other.
[0037] During use, the slurry for pulp molding processing is poured into the mold bladder 7 formed between the left mold shell 4 and the right mold shell 5, and then the external vacuum negative pressure system is turned on and the external hot air blowing system is turned off. At this time, the external vacuum negative pressure system makes the through holes 20 on the horizontal pipe 15, the left hollow half ring 16, the right hollow half ring 17 and the vertical pipe 19 generate suction force through the slurry suction pipe 10, the air guide cylinder seat 9, the slurry suction joint 13 and the blowing joint 14. Since the mold bladder 7 is a filter structure, under the filtration of the mold bladder 7, the water in the slurry in the mold bladder 7 is sucked away, and the paper fibers in the pulp cover the mold bladder 7 to form a bottle-shaped blank 25 with the same shape and structure as the mold bladder 7. And during the process of the through holes 20 absorbing the water in the slurry, the forward and reverse motor 6 is started to drive the driving bevel gear 21 to rotate reciprocally. Then, the driving bevel gear 21 drives the driven bevel gear 24 to rotate back and forth through the meshing with the bevel gear ring 23 and the meshing of the bevel gear ring 23 with the driven bevel gear 24, so that the vertical pipes 19 at different positions can be driven to rotate back and forth, and then the through holes 20 on the vertical pipes 19 can swing back and forth and generate suction force on the surface of the mold bladder 7 at different angles, so that the paper fibers in the slurry can be evenly adsorbed on the mold bladder 7, making the thickness of the surface of the bottle-shaped blank 25 more uniform, so as to improve the processing quality of the pulp molding of the bottle-shaped container.
[0038] After the bottle blank 25 is formed by adsorption, the hydraulic rods 3 on both sides are started to contract and drive the left membrane shell 4 and the right membrane shell 5 to move outward and away from each other. In this process, the external hot air blowing system is turned on and the external vacuum negative pressure system is turned off. At this time, the external hot air blowing system generates hot air through the through holes 20 on the horizontal tube 15, the left hollow semi-ring 16, the right hollow semi-ring 17 and the vertical tube 19 through the blowing tube 11, the air guide cylinder seat 9, the slurry suction joint 13 and the blowing joint 14. At this time, the hot air generated by the through holes 20 can dry the bottle blank 25 on the one hand, and on the other hand, the hot air generated by the through holes 20 can The bottle blank 25 is swung back and forth through the through hole 20 on the vertical pipe 19 to blow air to different positions on the surface of the bottle blank 25, so that the surface of the bottle blank 25 can be quickly and evenly dried. At the same time, the bottle blank 25 can also generate inward thrusts at different positions on the left and right sides of the bottle blank 25, so that the bottle blank 25 and the mold 7 at different positions are quickly separated, so that the bottle blank 25 can be quickly separated from the molds 7 on both sides. When the bottle blank 25 is separated from the mold 7, the external hot air blowing system is turned off, so that the separated bottle blank 25 falls on the processing table 1 and is taken out manually.
[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pulp molding mold for a bottle-shaped container, comprising a processing table (1), characterized in that: Side brackets (2) are fixed on both sides of the processing table (1), and hydraulic rods (3) are installed on the side brackets (2). A left membrane shell (4) is fixed on the left hydraulic rod (3), and a right membrane shell (5) is fixed on the right hydraulic rod (3). Forward and reverse motors (6) are installed on the left membrane shell (4) and the right membrane shell (5). A mold liner (7) is provided between the left membrane shell (4) and the right membrane shell (5), and inner mold grooves (8) are provided inside the left membrane shell (4) and the right membrane shell (5). An air guide cylinder seat (9) is fixed on the upper surface of the processing table (1), and a slurry suction pipe (10) and a blow molding pipe (11) are fixed at the bottom end of the air guide cylinder seat (9); The surface of the gas guide cylinder seat (9) is provided with two groups of left and right plug-in ports (12); a slurry suction joint (13) is movably inserted inside the left plug-in port (12); a blow molding joint (14) is movably inserted inside the right plug-in port (12); a transverse tube (15) is fixed to the slurry suction joint (13) and the blow molding joint (14); a left hollow semi-ring (16) is fixed to the left transverse tube (15); a right hollow semi-ring (17) is fixed to the right transverse tube (15); receiving pipe seats (18) are fixed to the upper and lower groups of the left hollow semi-ring (16) and the right hollow semi-ring (17); a vertical tube (19) is rotatably provided between the two groups of the receiving pipe seats (18); and through holes (20) are provided on the transverse tube (15), the left hollow semi-ring (16), the right hollow semi-ring (17) and the vertical tube (19); A driving bevel gear (21) is fixed to the output end of the forward and reverse motor (6), a supporting ring seat (22) is fixed to the inner wall of the inner mold groove (8), a bevel gear ring (23) is rotatably mounted on the supporting ring seat (22), a driven bevel gear (24) is fixed to the vertical tube (19), and a bottle blank (25) is arranged inside the left membrane shell (4) and the right membrane shell (5).
2. The pulp molding mold for a bottle-shaped container according to claim 1, characterized in that: The mold liner (7) is formed by a mold cavity between the left membrane shell (4) and the right membrane shell (5), and the mold liner (7) is a filter screen structure.
3. The pulp molding mold for a bottle-shaped container according to claim 1, characterized in that: The slurry suction pipe (10) is connected to an external vacuum negative pressure system, and the blowing pipe (11) is connected to an external hot air blowing system.
4. The pulp molding mold for a bottle-shaped container according to claim 1, characterized in that: The left hollow half ring (16) and the right hollow half ring (17) are connected to each other via a transverse tube (15); the left hollow half ring (16) is movably connected to the left plug-in interface (12) via the transverse tube (15) and the slurry suction joint (13); and the right hollow half ring (17) is movably connected to the right plug-in interface (12) via the transverse tube (15) and the blow molding joint (14).
5. The pulp molding mold for a bottle-shaped container according to claim 1, characterized in that: The left hollow half ring (16) and the right hollow half ring (17) on the lower side are fixedly connected to the bottom surface of the inner mold groove (8), and the left hollow half ring (16) and the right hollow half ring (17) on the upper side are fixedly connected to the top surface of the inner mold groove (8). The vertical pipe (19) is rotatably connected to the receiving pipe seats (18) on the upper and lower sides thereof, and a plurality of vertical pipes (19) are arranged along the arc direction of the left hollow half ring (16) and the right hollow half ring (17).
6. The pulp molding mold for a bottle-shaped container according to claim 1, characterized in that: The through hole (20) is formed on the upper surface of the left hollow half ring (16) and the right hollow half ring (17) of the lower end transverse tube (15), and the through hole (20) is formed on the lower surface of the left hollow half ring (16) and the right hollow half ring (17) of the upper end transverse tube (15).
7. The pulp molding mold for a bottle-shaped container according to claim 1, characterized in that: The through holes (20) are formed on the inner surface of the vertical tube (19), and the through holes (20) on the vertical tube (19) at different positions have different heights.
8. The pulp molding mold for a bottle-shaped container according to claim 1, characterized in that: The driving bevel gear (21) meshes with the bevel gear ring (23), and the bevel gear ring (23) meshes with the driven bevel gear (24). The bevel gear ring (23) is rotatably connected to the support ring seat (22), and the bevel gear rings (23) on the left and right sides do not contact each other.