A mold closing device for a blow-fill-seal apparatus

Abstract

This utility model relates to the field of blow-fill-seal equipment molding technology, and discloses a mold closing device for blow-fill-seal equipment, comprising: a first static template and a second static template arranged opposite to and parallel to each other, and a moving template unit for opening and closing a displacement molding die. Each of the first and second static templates is equipped with a driving cylinder unit. A first moving component and a second moving component are respectively connected to the moving ends of the two driving cylinder units. A guide unit is installed between the first and second static templates, and the moving template is connected to the surface of the guide unit. This mold closing device for blow-fill-seal equipment, by setting up the first static template, the second static template, the moving template unit, and the driving cylinder unit, allows the driving cylinder unit to move the moving template unit, thereby opening and closing the molding die and preventing damage to the mold closing components.

Description

Technical Field

[0001] This utility model relates to the field of molding technology for blow-fill-seal equipment, specifically a mold closing device for blow-fill-seal equipment. Background Technology

[0002] Typically, blow-fill-seal equipment is used to form plastic ampoules, and its mold closure system is often the core mechanism of the equipment, directly affecting the forming effect of the container.

[0003] Currently, a common design involves setting up a symmetrical lever mechanism behind the mold fixing plate, and setting a drive device at the hinge of the lever mechanism to close the mold. When the mold closing force is large, this mechanism will cause the lever to deform and squeeze the template, causing damage to the template component of the mold closing device. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a mold closing device for blow-fill-seal equipment, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a mold closing device for a blow-fill-seal equipment, comprising: a first static template and a second static template arranged opposite to and parallel to each other, a moving template unit for opening and closing a displacement forming mold, a driving cylinder unit being provided on both the first static template and the second static template, a first moving component and a second moving component being respectively connected to the moving ends of the two driving cylinder units, a guide unit being installed between the first static template and the second static template, and the moving template being connected to the surface of the guide unit;

[0006] Each of the drive cylinder units includes at least one sealing mold cylinder, at least one intermediate mold cylinder, and at least one lower main mold cylinder. The sealing mold cylinder, intermediate mold cylinder, and lower main mold cylinder are all mounted on a stationary template. The surfaces of the first moving component and the second moving component are each provided with multiple connecting parts. The first moving component and the second moving component are both connected to the piston rods of the sealing mold cylinder, intermediate mold cylinder, and lower main mold cylinder through the connecting parts.

[0007] Preferably, the movable template unit includes a first movable component and a second movable component respectively connected to both sides of the molding die;

[0008] The first moving component includes a left first moving template, a left second moving template, and a left third moving template. The moving end of the sealing mold cylinder assembly on the first stationary template is connected to the surface of the left first moving template. The moving end of the intermediate mold cylinder assembly on the first stationary template is connected to the surface of the left second moving template. The moving end of the lower main mold cylinder on the first stationary template is connected to the surface of the left third moving template.

[0009] The second moving assembly includes a right first moving template, a right second moving template, and a right third moving template. The moving end of the sealing mold cylinder assembly on the second stationary template is connected to the surface of the right first moving template. The moving end of the intermediate mold cylinder assembly on the second stationary template is connected to the surface of the right second moving template. The moving end of the lower main mold cylinder on the second stationary template is connected to the surface of the right third moving template.

[0010] Preferably, the forming mold includes two sealing molds, two intermediate molds and two lower main molds. The two sealing molds are respectively installed on the left first moving template and the right first moving template, the two intermediate molds are respectively installed on the left second moving template and the right second moving template, and the two lower main molds are respectively installed on the left third moving template and the right third moving template.

[0011] Preferably, the number of sealing mold cylinders is two, the number of intermediate mold cylinder assemblies is three, and the number of lower main mold cylinders is two.

[0012] Preferably, the number of sealing mold cylinders is three, the number of intermediate mold cylinders is two, and the number of lower main mold cylinders is two.

[0013] Preferably, the connector includes a mounting nut that connects to the piston rod;

[0014] The surfaces of the left first moving template, left second moving template, left third moving template, right first moving template, right second moving template and right third moving template are all provided with nut pressure plates for connecting with the installation nuts.

[0015] Preferably, the guiding unit includes a first guiding component and a second guiding component;

[0016] The first guide assembly includes two first guide rods symmetrically arranged between the first static template and the second static template, with the two ends of the first guide rods passing through the left first moving template and the right first moving template, respectively.

[0017] The second guide assembly includes four second guide rods disposed between the first static template and the second static template, wherein the two ends of the second guide rods pass through the left second moving template and the right second moving template respectively, and the two ends of the other two second guide rods pass through the left third moving template and the right second moving template respectively;

[0018] Both the first guide rod and the second guide rod are connected to the static template and locked in place by locking nuts.

[0019] Preferably, displacement sensors are installed on both the first static template and the second static template.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The mold closing device for blow-fill-seal equipment consists of a first static template, a second static template, a moving template unit, and a driving cylinder unit. The driving cylinder unit moves the moving template unit, thereby opening and closing the molding die and preventing damage to the mold closing components. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the open state structure of the movable template unit in Embodiment 1 of this utility model;

[0024] Figure 3 This is a schematic diagram of the closed state structure of the movable template unit in Embodiment 1 of this utility model;

[0025] Figure 4 This is a schematic diagram of the drive cylinder unit structure in Embodiment 2 of this utility model;

[0026] Figure 5 This is a schematic diagram of the open state structure of the movable template unit in Embodiment 2 of this utility model;

[0027] Figure 6 This is a schematic diagram of the closed state structure of the movable template unit in Embodiment 2 of this utility model.

[0028] In the diagram: 01, First stationary template; 200, Moving template unit; 02, Left first moving template; 03, Left second moving template; 04, Left third moving template; 05, Right first moving template; 06, Right second moving template; 07, Right third moving template; 08, Second stationary template; 09, Displacement sensor; 10, First guide rod; 11, Second guide rod; 100, Drive cylinder unit; 12, Sealing mold cylinder; 13, Intermediate mold cylinder; 14, Lower main mold cylinder; 300, Forming mold; 15, Sealing mold; 16, Intermediate mold; 17, Lower main mold; 18, Nut pressure plate; 19, Installing nut. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6A mold closing device for a blow-fill-seal equipment includes: a first static template 01 and a second static template 08 arranged opposite to and parallel to each other, and a moving template unit 200 for opening and closing a displacement forming mold 300. A drive cylinder unit 100 is provided on both the first static template 01 and the second static template 08. A first moving component and a second moving component are respectively connected to the moving ends of the two drive cylinder units 100. A guide unit is installed between the first static template 01 and the second static template 08, and the moving template is connected to the surface of the guide unit.

[0031] Each drive cylinder unit 100 includes at least one sealing mold cylinder 12, at least one intermediate mold cylinder 13, and at least one lower main mold cylinder 14. The sealing mold cylinder 12, intermediate mold cylinder 13, and lower main mold cylinder 14 are all mounted on a stationary template. The surfaces of the first moving component and the second moving component are each provided with multiple connecting parts. The surfaces of the first moving component and the second moving component are connected to the piston rods of the sealing mold cylinder 12, intermediate mold cylinder 13, and lower main mold cylinder 14 through the connecting parts.

[0032] The movable template unit 200 includes a first movable component and a second movable component respectively connected to both sides of the molding die 300. The first movable component includes a left first movable template 02, a left second movable template 03, and a left third movable template 04. The moving end of the sealing mold cylinder 12 assembly on the first stationary template 01 is connected to the surface of the left first movable template 02. The moving end of the intermediate mold cylinder 13 assembly on the first stationary template 01 is connected to the surface of the left second movable template 03. The moving end of the lower main mold cylinder 14 on the first stationary template 01 is connected to the surface of the left third movable template 04. The second movable component includes a right first movable template 05, a right second movable template 06, and a right third movable template 07. The second stationary template 08... The moving end of the sealing mold cylinder 12 assembly is connected to the surface of the right first moving template 05. The moving end of the intermediate mold cylinder 13 assembly on the second stationary template 08 is connected to the surface of the right second moving template 06. The moving end of the lower main mold cylinder 14 on the second stationary template 08 is connected to the surface of the right third moving template 07. The piston rods of each sealing mold cylinder 12, intermediate mold cylinder 13 and lower main mold cylinder 14 are aligned with the center lines of the corresponding surfaces of the left first moving template 02, left second moving template 03, left third moving template 04, right first moving template 05, right second moving template 06 and right third moving template 07. When transmitting tension and pressure, the templates are subjected to uniform force to avoid deformation.

[0033] The forming mold 300 includes two sealing molds 15, two intermediate molds 16 and two lower main molds 17. The two sealing molds 15 are respectively installed on the left first moving template 02 and the right first moving template 05. The two intermediate molds 16 are respectively installed on the left second moving template 03 and the right second moving template 06. The two lower main molds 17 are respectively installed on the left third moving template 04 and the right third moving template 07.

[0034] Please see Figure 1-3 Example 1: There are two sealing mold cylinders 12, three intermediate mold cylinder 13 components, and two lower main mold cylinders 14.

[0035] Please see Figure 4-6 Example 2: There are three sealing mold cylinders 12, two intermediate mold cylinders 13, and two lower main mold cylinders 14. This structure is suitable for situations where the width of the forming mold is small. In this case, the intermediate mold cylinders 13 and the lower main mold cylinders 14 are arranged first to ensure that the container body is formed first, and then the sealing mold cylinders 12 are arranged. Since the sealing mold 15 is too small, it is generally necessary to stagger the arrangement. Three sealing mold cylinders 12 are set up to drive it together.

[0036] The connector includes a mounting nut 19 that connects to the piston rod. The surfaces of the left first moving template 02, left second moving template 03, left third moving template 04, right first moving template 05, right second moving template 06 and right third moving template 07 are all provided with nut pressure plates 18 for connecting with the mounting nut 19.

[0037] The guiding unit includes a first guiding assembly and a second guiding assembly. The first guiding assembly includes two first guide rods 10 symmetrically arranged between the first static template 01 and the second static template 08, with the two ends of the first guide rods 10 passing through the left first moving template 02 and the right first moving template 05, respectively. The second guiding assembly includes four second guide rods 11 arranged between the first static template 01 and the second static template 08, with the two ends of two second guide rods 11 passing through the left second moving template 03 and the right second moving template 06, respectively, and the two ends of the other two second guide rods 11 passing through the left third moving template 04 and the right second moving template 06, respectively. Both the first guide rods 10 and the second guide rods 11 are connected to the static templates and locked in place by locking nuts. The two ends of the left first moving template 02, the left second moving template 03, the left third moving template 04, the right first moving template 05, the right second moving template 06, and the right third moving template 07 are respectively provided with sliding bearings for slidingly connecting the first guide rods 10 and the second guide rods 11.

[0038] Displacement sensors 09 are installed on both the first static template 01 and the second static template 08 to collect the measured data to the human-machine interface, which can intuitively determine the size of the actual mold closing stroke so as to make reasonable adjustments.

[0039] The mold clamping device is located below the extruder. The extruded material flows downward and passes through the middle of the forming mold 300. The forming mold 300 is initially in the open state. Figure 2As shown in the diagram, after extending a certain distance beyond the lower main mold 17, the piston rod of the lower main mold cylinder 14 extends. Under the connection of the piston rod mounting nut 19 and the nut pressure plate 18, it drives the left third moving template 04 and the right third moving template 07 to move towards the blank, completing the bottle body forming of container one. Then, the solution is filled. After filling, the piston rod of the intermediate mold cylinder 13 extends, driving the left second moving template 03 and the right second moving template 06 to move towards the blank, sealing the bottle mouth of container one and creating the bottle body of container two. Then, the piston rod of the lower main mold cylinder group 14 retracts, the lower main mold 17 opens, and the solution is filled again. After filling, the piston rod of the sealing mold cylinder 12 extends, sealing the bottle mouth of container two. This completes one production cycle. Thereafter, by following the above steps, continuous production can be achieved.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mold closing device for a blow-fill-seal equipment, characterized in that, include: The first static template (01) and the second static template (08) are arranged opposite to each other and in parallel. The moving template unit (200) is used for opening and closing the displacement forming mold (300). The first static template (01) and the second static template (08) are both provided with driving cylinder units (100). The first moving component and the second moving component are respectively connected to the moving ends of the two driving cylinder units (100). A guide unit is installed between the first static template (01) and the second static template (08), and the moving template is connected to the surface of the guide unit. Each of the drive cylinder units (100) includes at least one sealing mold cylinder (12), at least one intermediate mold cylinder (13), and at least one lower main mold cylinder (14). The sealing mold cylinder (12), intermediate mold cylinder (13), and lower main mold cylinder (14) are all mounted on the stationary template. The surfaces of the first moving component and the second moving component are provided with multiple connecting parts. The first moving component and the second moving component are connected to the piston rods of the sealing mold cylinder (12), intermediate mold cylinder (13), and lower main mold cylinder (14) through the connecting parts.

2. The mold closing device for a blow-fill-seal equipment according to claim 1, characterized in that, The movable template unit (200) includes a first movable component and a second movable component respectively connected to both sides of the molding die (300); The first moving component includes a left first moving template (02), a left second moving template (03), and a left third moving template (04). The moving end of the sealing mold cylinder (12) assembly on the first stationary template (01) is connected to the surface of the left first moving template (02). The moving end of the intermediate mold cylinder (13) assembly on the first stationary template (01) is connected to the surface of the left second moving template (03). The moving end of the lower main mold cylinder (14) on the first stationary template (01) is connected to the surface of the left third moving template (04). The second moving assembly includes a right first moving template (05), a right second moving template (06), and a right third moving template (07). The moving end of the sealing mold cylinder (12) assembly on the second stationary template (08) is connected to the surface of the right first moving template (05). The moving end of the intermediate mold cylinder (13) assembly on the second stationary template (08) is connected to the surface of the right second moving template (06). The moving end of the lower main mold cylinder (14) on the second stationary template (08) is connected to the surface of the right third moving template (07).

3. A mold closing device for a blow-fill-seal equipment according to claim 2, characterized in that, The forming mold (300) includes two sealing molds (15), two intermediate molds (16) and two lower main molds (17). The two sealing molds (15) are respectively installed on the left first moving template (02) and the right first moving template (05). The two intermediate molds (16) are respectively installed on the left second moving template (03) and the right second moving template (06). The two lower main molds (17) are respectively installed on the left third moving template (04) and the right third moving template (07).

4. A mold closing device for a blow-fill-seal equipment according to claim 3, characterized in that, The number of sealing mold cylinders (12) is two, the number of intermediate mold cylinder (13) components is three, and the number of lower main mold cylinders (14) is two.

5. A mold closing device for a blow-fill-seal equipment according to claim 3, characterized in that, The number of sealing mold cylinders (12) is three, the number of intermediate mold cylinders (13) is two, and the number of lower main mold cylinders (14) is two.

6. A mold closing device for a blow-fill-seal equipment according to claim 4 or 5, characterized in that, The connector includes a mounting nut (19) that is connected to the piston rod. The surfaces of the left first moving template (02), left second moving template (03), left third moving template (04), right first moving template (05), right second moving template (06) and right third moving template (07) are all provided with nut pressure plates (18) for connecting with the mounting nut (19).

7. A mold closing device for a blow-fill-seal equipment according to claim 3, characterized in that, The guiding unit includes a first guiding component and a second guiding component; The first guide assembly includes two first guide rods (10) symmetrically arranged between the first static template (01) and the second static template (08), and the two ends of the first guide rods (10) pass through the left first moving template (02) and the right first moving template (05) respectively. The second guide assembly includes four second guide rods (11) disposed between the first static template (01) and the second static template (08), wherein the two ends of the second guide rods (11) pass through the left second moving template (03) and the right second moving template (06) respectively, and the two ends of the other two second guide rods (11) pass through the left third moving template (04) and the right second moving template (06) respectively. The first guide rod (10) and the second guide rod (11) are both connected to the static template and locked in place by locking nuts.

8. A mold closing device for a blow-fill-seal equipment according to claim 1, characterized in that, Displacement sensors (09) are installed on both the first static template (01) and the second static template (08).

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