A mold locking mechanism suitable for a blow-fill-seal integrated machine

Abstract

The present application relates to the technical fields of mold locking, and discloses a mold locking mechanism suitable for a blow-filling-sealing integrated machine, a mold locking frame, an upper curved guide rail and a lower curved guide rail, and the surface of the mold locking frame is provided with a limiting mounting plate. The mold locking mechanism suitable for the blow-filling-sealing integrated machine is provided with the mold locking frame, a piston rod, the upper curved guide rail and the lower curved guide rail. The hydraulic oil with pressure is filled between the piston rod and the mold locking frame, the piston rod is pushed to move, the piston rod pushes the upper curved guide rail and the lower curved guide rail to move to the frontmost position, one of the mold pulleys rotates downward along the guide inclined surface of the upper curved guide rail, the mold gradually closes during the rotating process, until the mold pulley moves to the vertical surface of the upper curved guide rail to complete the mold closing, and the mold continues to rotate downward to maintain the pressure for a period of time in the mold closing state, so that the product is formed, the filling and sealing are completed in the process, and the inside of the tube embryo is prevented from being polluted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mold locking, in particular to a mold locking mechanism suitable for a blow-filling-seal integrated machine. BACKGROUND

[0002] In the production process of the blow-filling-seal integrated machine, the first step is to shape the tube embryo extruded by the extruder die in the bottle mold. This process is to close and lock the two parts of the bottle mold by the power actuator and maintain the pressure for a period of time, so that the tube is shaped in the bottle mold by vacuum or blowing. The second step is to fill the shaped bottle part. The third step is to seal. This process is to close and lock the two parts of the head mold by the power actuator and maintain the pressure for a period of time, so that the product head is shaped in the head mold by vacuum or blowing. The production of the product is completed after the above three steps.

[0003] In the conventional mold locking mechanism, the left and right two parts of the mold move linearly in opposite directions to close and lock the mold. However, this linear reciprocating mold locking mechanism generally needs to cut the tube embryo extruded by the extruder. The mold moves back and forth between the extrusion station and the filling station to realize the production process of the blow-filling-seal equipment. The cut tube embryo has an open interval before sealing, which has the risk of contamination of the inside of the tube embryo. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a mold locking mechanism suitable for a blow-filling-seal integrated machine, which solves the problems mentioned in the background.

[0005] The present application provides the following technical scheme: a mold locking mechanism suitable for a blow-filling-seal integrated machine, comprising: a mold locking frame, an upper curved guide rail and a lower curved guide rail, the surface of the mold locking frame is provided with a limiting mounting plate, and the two limiting mounting plates are respectively located on the two sides of the upper curved guide rail and the lower curved guide rail, the inner wall of the limiting mounting plate is respectively connected with an upper transition plate and a lower transition plate, one end of the upper curved guide rail and the lower curved guide rail extends to the inside of the limiting mounting plate, the upper curved guide rail is connected to the surface of the upper transition plate, and the lower curved guide rail is connected to the surface of the lower transition plate, the side surface of the mold locking frame is provided with a piston rod at the position of the upper curved guide rail and the lower curved guide rail, the surface of the side surface of the mold locking frame corresponding to the piston rod is provided with a piston cavity, the inner wall of the limiting mounting plate corresponding to the surface of the piston rod is provided with a through groove, one end of the piston rod passes through the through groove and is connected with the inner wall of the piston cavity in a sliding manner, and an oil channel is arranged in the inside of the mold locking frame and communicates with the piston cavity.

[0006] Preferably, the piston pushing mechanism comprises a piston rod, a piston cavity is arranged on the mold locking frame, and the piston rod is connected to the inside of the piston cavity in a sliding manner.

[0007] Preferably, the surface of the piston rod is respectively provided with a first sealing ring and a second sealing ring.

[0008] Preferably, the surface of the upper transition plate and the lower transition plate is provided with a guide plate, and the two guide plates are installed on the inner wall of the limiting installation plate.

[0009] Preferably, the inner wall of the through groove is provided with a groove, and the inner wall of the groove is provided with a third sealing ring, the inner wall of the third sealing ring is in sliding connection with the surface of the piston rod, the surface of the limiting installation plate is provided with a fixing groove, the inner wall of the fixing groove is provided with a fourth sealing ring, and the surface of the fourth sealing ring is attached to the surface of the mold locking frame.

[0010] Preferably, the upper curved guide rail and the lower curved guide rail are in rotational connection, and the surface of the upper curved guide rail and the surface of the lower curved guide rail are provided with a guide inclined surface.

[0011] Preferably, the inner wall of the limiting installation plate is provided with a limiting plate, and the limiting plate is fixed on the mold locking frame after pressing the limiting installation plate.

[0012] Preferably, one end of the upper curved guide rail is hinged to one end of the lower curved guide rail.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] The mold locking mechanism suitable for the blow-filling-sealing integrated machine fills the hydraulic oil with pressure between the piston rod and the mold locking frame, drives the piston rod to move, drives the piston rod to move the upper curved guide rail and the lower curved guide rail to the frontmost position, one of the mold pulleys rotates downward along the guide inclined surface of the upper curved guide rail, the mold gradually closes during the rotating process, until the mold pulley moves to the vertical surface of the upper curved guide rail to complete the mold closing, and continues to rotate downward for a period of time to make the product form and complete the filling and sealing in this process; when the mold enters the inclined surface of the lower curved guide rail, the mold opens, and the mold pulley completely leaves the lower curved guide rail, and the mold opening is completed; the whole process completes the mold closing, locking and opening process, and avoids the pollution of the inside of the pipe embryo. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective structural schematic view of the present application;

[0016] Figure 2 It is a top view structural schematic view of the present application;

[0017] Figure 3 It is a bottom view structural schematic view of the present application;

[0018] Figure 4 It is a side sectional structural schematic view of the piston rod of the present application;

[0019] Figure 5 It is the schematic diagram of side section structure of upper and lower curve guide rail of the application;

[0020] Figure 6 It is the schematic diagram of working state structure of the application.

[0021] In the figure: 1, piston rod; 2, limit installation plate; 3, guide plate; 4, lower transition plate; 5, upper transition plate; 6, first sealing ring; 7, second sealing ring; 8, mold locking frame; 9, limit plate; 10, third sealing ring; 11, fourth sealing ring; 12, upper curve guide rail; 13, lower curve guide rail; 14, extruder die; 15, mold; 16, pulley; 17, piston cavity. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0023] Please refer to Figures 1-6 A mold locking mechanism suitable for blow-filling-sealing integrated machine, comprising: a mold locking frame 8, an upper curve guide rail 12 and a lower curve guide rail 13, one end of the upper curve guide rail 12 is hinged with one end of the lower curve guide rail 13, the surface of the mold locking frame 8 is provided with a limit installation plate 2, and two limit installation plates 2 are respectively located on the two sides of the upper curve guide rail 12 and the lower curve guide rail 13, the inner wall of the limit installation plate 2 is respectively slidably connected with an upper transition plate 5 and a lower transition plate 4, one end of the upper curve guide rail 12 and one end of the lower curve guide rail 13 extend to the inside of the limit installation plate 2, the upper curve guide rail 12 is connected on the surface of the upper transition plate 5, the lower curve guide rail 13 is connected on the surface of the lower transition plate 4, the side of the mold locking frame 8 is provided with a piston rod 1 at the position of the upper curve guide rail 12 and the lower curve guide rail 13, the surface of the side of the mold locking frame 8 corresponding to the piston rod 1 is provided with a piston cavity 17, the inner wall of the limit installation plate 2 corresponding to the surface of the piston rod 1 is provided with a through slot, one end of the piston rod 1 passes through the through slot and is slidably connected with the inner wall of the piston cavity 17, the inside of the mold locking frame 8 is provided with an oil channel, and the oil channel is in communication with the piston cavity 17.

[0024] Among them; the piston pushing mechanism comprises a piston rod 1, the mold locking frame 8 is provided with a piston cavity 17, the piston rod 1 is slidably connected in the inside of the piston cavity 17, the surface of the piston rod 1 is respectively provided with a first sealing ring 6 and a second sealing ring 7, the surfaces of the upper transition plate 5 and the lower transition plate 4 are provided with guide plates 3, and the two guide plates 3 are installed on the inner wall of the limit installation plate 2.

[0025] The inner wall of the through groove is provided with a groove, and the inner wall of the groove is provided with a third sealing ring 10, the inner wall of the third sealing ring 10 is in sliding connection with the surface of the piston rod 1, the surface of the limiting installation plate 2 is provided with a fixed groove, the inner wall of the fixed groove is provided with a fourth sealing ring 11, and the surface of the fourth sealing ring 11 is attached to the surface of the mold locking frame 8.

[0026] The upper curved guide rail 12 is in rotation connection with the lower curved guide rail 13, and the surfaces of the upper curved guide rail 12 and the lower curved guide rail 13 are provided with guide inclined surfaces.

[0027] The inner wall of the limiting installation plate 2 is provided with a limiting plate 9, the limiting plate 9 is pressed against the limiting installation plate 2 and is fixed on the mold locking frame 8.

[0028] The working principle is that the mold locking frame 8 is fixed on the main frame which is not marked in the figure, the second sealing ring 7 and the first sealing ring 6 are installed on the piston rod 1, the shaft end of the piston rod 1 provided with the first sealing ring 6 and the second sealing ring 7 is inserted into the piston cavity 17 in the middle of the mold locking frame 8, the third sealing ring 10 is installed in the groove of the through groove of the limiting installation plate 2, the fourth sealing ring 11 is installed in the fixed groove at the end face of the limiting installation plate 2, the through groove of the limiting installation plate 2 provided with the third sealing ring 10 and the fourth sealing ring 11 is passed through the small shaft end of the piston rod 1, the fourth sealing ring 11 is pressed between the limiting installation plate 2 and the mold locking frame 8, then the limiting installation plate 2 is fixed on the mold locking frame 8, the guide plate 3 is pressed against the limiting installation plate 2 and is fixed on the mold locking frame 8, the lower transition plate 4 and the lower curved guide rail 13 are fixed together, then the end face of the lower transition plate 4 is attached to the small shaft end of the piston rod 1, the lower end face of the lower transition plate 4 is attached to the side face of the guide plate 3, the two side faces of the lower transition plate 4 are attached to the inner wall of the limiting installation plate 2, the lower curved guide rail 13 is placed in the U-shaped groove of the limiting installation plate 2, then the limiting plate 9 is pressed against the limiting installation plate 2 and is fixed on the mold locking frame 8, so that the lower curved guide rail 13 can only move in the axial direction of the piston rod 1; in the same way, the upper transition plate 5 and the upper curved guide rail 12 are fixed together, then the end face of the upper transition plate 5 is attached to the small shaft end of the piston rod 1, the lower end face of the upper transition plate 5 is attached to the side face of the guide plate 3, the two side faces of the upper transition plate 5 are attached to the inner wall of the limiting installation plate 2, and the upper curved guide rail 12 is placed in the U-shaped groove of the limiting installation plate 2, so that the upper curved guide rail 12 can only move in the axial direction of the piston rod 1.

[0029] The extruder discharges, continuously extruding the tube blank downward through the extruder die 14, pressurized hydraulic oil is filled between the piston rod 1 and the locking frame 8, the hydraulic oil enters the piston cavity 17 through the oil channel and pushes the piston rod 1 to move, the piston rod 1 pushes the upper curved guide rail 12 and the lower curved guide rail 13 to move to the front, one of the mold 15 pulleys 16 rotates along the inclined surface of the upper curved guide rail 12 downward, the mold 15 gradually closes during the rotation process, until the mold 15 pulley 16 moves to the vertical surface of the upper curved guide rail 12 to complete the mold closing, continue to rotate downward in the mold closing state for a period of time to make the product, and in this process to complete the filling and sealing; when the mold 15 rotates on the lower curved guide rail 13, and the mold 15 pulley 16 is away from the vertical surface of the lower curved guide rail 13, and enters the inclined surface of the lower curved guide rail 13, the mold 15 is in the process of opening, until the mold 15 pulley 16 completely leaves the lower curved guide rail 13, the mold opening is completed; the above whole process completes the mold 15 mold 15 mold closing, locking and opening of the whole process of the mold 15 rotary blow-filling-sealing equipment.

[0030] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences, modifications, replacements and variations of the embodiments, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A mold locking mechanism suitable for a blow-fill-seal integrated machine, characterized in that, Include: Mold clamping frame (8), upper curved guide rail (12) and lower curved guide rail (13), the surface of the mold clamping frame (8) is provided with limiting mounting plate (2), and the two limiting mounting plates (2) are located on the two sides of the upper curved guide rail (12) and the lower curved guide rail (13) respectively, the inner wall of the limiting mounting plate (2) is slidably connected with upper transition plate (5) and lower transition plate (4) respectively, one end of the upper curved guide rail (12) and the lower curved guide rail (13) extends to the inside of the limiting mounting plate (2), the upper curved guide rail (12) is connected on the surface of the upper transition plate (5), the lower curved guide rail (13) is connected on the surface of the lower transition plate (4), the side of the mold clamping frame (8) is provided with piston rod (1) at the position of the upper curved guide rail (12) and the lower curved guide rail (13), the surface of the mold clamping frame (8) corresponding to the piston rod (1) is provided with piston cavity (17), the inner wall of the limiting mounting plate (2) corresponding to the surface of the piston rod (1) is provided with through slot, one end of the piston rod (1) passes through the through slot and is slidably connected with the inner wall of the piston cavity (17), the inside of the mold clamping frame (8) is provided with oil channel, the oil channel is communicated with the piston cavity (17), the upper curved guide rail (12) and the lower curved guide rail (13) are rotatably connected, the surfaces of the upper curved guide rail (12) and the lower curved guide rail (13) are provided with guide inclined surface, the inner wall of the limiting mounting plate (2) is provided with limiting plate (9), the limiting plate (9) is pressed on the limiting mounting plate (2) and is fixed on the mold clamping frame (8).

2. The mold locking mechanism suitable for a blow-fill-seal integrated machine according to claim 1, wherein, The surface of the piston rod (1) is respectively provided with first sealing ring (6) and second sealing ring (7).

3. The mold locking mechanism suitable for a blow-fill-seal integrated machine according to claim 1, wherein, The surfaces of the upper transition plate (5) and the lower transition plate (4) are provided with guide plate (3), and the two guide plates (3) are installed on the inner wall of the limiting mounting plate (2).

4. The mold locking mechanism suitable for a blow-fill-seal integrated machine according to claim 1, wherein, The inner wall of the through slot is provided with groove, and the inner wall of the groove is provided with third sealing ring (10), the inner wall of the third sealing ring (10) is slidably connected with the surface of the piston rod (1), the surface of the fourth sealing ring (11) is attached to the surface of the mold clamping frame (8).

5. The mold locking mechanism suitable for a blow-fill-seal integrated machine according to claim 1, wherein, One end of the upper curved guide rail (12) is hinged with one end of the lower curved guide rail (13).

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