Die cavity assembly positioning structure

Abstract

The utility model relates to the technical field of blow molding, and discloses a mold cavity component positioning structure. The mold cavity assembly positioning structure comprises a bottom plate, a limiting plate is fixedly installed above the bottom plate, an adjusting piston is fixedly installed on the rear side of the limiting plate, a supporting plate is fixedly installed on the outer side of the adjusting piston, a fixed mold is fixedly installed above the bottom plate, a limiting rod is fixedly installed on the front side of the fixed mold, and the limiting rod is fixedly installed on the front side of the fixed mold. A limiting block is fixedly installed on the front side of the fixed mold, a fixing plate is fixedly installed at the front end of a limiting rod, a movable mold is installed on the outer side of the limiting rod in a penetrating mode, when an adjusting piston drives the movable mold to move, the movement track of the movable mold can be limited by the limiting rod and a bottom plate, and the limiting block is fixedly installed on the front side of the fixed mold. Due to the fact that the limiting block is of the triangular prism structure, the limiting block can limit the relative position between the movable mold and the fixed mold when the movable mold gets close to the fixed mold, the mold cavities are completely embedded, and dislocation of the mold cavities is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding, in particular to a mold cavity component positioning structure. Background Art

[0002] At present, plastic bottles have been widely used in various fields such as pharmaceutical packaging, food packaging, beverages, and chemicals. Most of the existing beverage packaging plastic bottles are made of PET materials that are plasticized into bottle embryos and blow molded. PET bottle embryos must rely on mold plasticization to become products. The mold cavity, also known as the mold cavity, is the space for molding plastic products in the mold. It is also the part of the external shape of the parts in the mold. Its shape is almost the same as the final product. The quality has a great influence on the quality and precision of the final product.

[0003] The existing Chinese utility model patent with reference announcement number: CN214000402U discloses a preform mold positioning device, including a first movable mold, a second movable mold and a fixed mold, the fixed mold is vertically arranged on the right side of the first movable mold and the second movable mold, and the first movable mold is vertically arranged on the left side of the second movable mold, an upper cross bar is horizontally arranged above the first movable mold and the second movable mold, a lower cross bar is horizontally arranged below the first movable mold and the second movable mold, and a rotatable upper roller is installed on the upper surface of the first movable mold and the second movable mold through a support plate. The utility model arranges upper rollers and lower rollers above and below the first movable mold and the second movable mold, so that the arc grooves of the upper rollers and the lower rollers are supported on the surfaces of the upper cross bar and the lower cross bar, and has a positioning support function when the first movable mold and the second movable mold act and move, so as to prevent the first movable mold and the second movable mold from being offset under the action of gravity, resulting in wear or damage to the mold.

[0004] The existing beverage bottle mold cavity is generally composed of two pieces, and the bottle preform is wrapped symmetrically in front and back during blow molding. The bottle preform needs to be embedded in the top of the mold cavity before blow molding. In this way, when the hydraulic piston drives the mold cavity to move, the bottle preform may slip from the top of the mold cavity and affect the blow molding operation. In addition, since the existing mold cavity needs to change the position of the molds on both sides after the bottle preform is installed and the blow molding is completed, the position of the mold cavities may be misaligned during subsequent blow molding, resulting in bulges on both sides of the beverage bottle at the embedded part of the bottle preform, affecting the quality of the beverage bottle. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a mold cavity assembly positioning structure, which has the advantages of being easy to fix the bottle embryo and avoiding mold cavity dislocation, thereby solving the above technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold cavity assembly positioning structure, comprising: a bottom plate, a limit plate is fixedly installed on the top of the bottom plate, an adjusting piston is fixedly installed on the rear side of the limit plate, a support plate is fixedly installed on the outer side of the adjusting piston, a fixed mold is fixedly installed on the top of the bottom plate, a limit rod is fixedly installed on the front side of the fixed mold, a limit block is fixedly installed on the front side of the fixed mold, a fixed plate is fixedly installed on the front end of the limit rod, a movable mold is inserted and installed on the outer side of the limit rod, a connecting block is fixedly installed on the top of the movable mold, a movable block is movably installed on the top of the connecting block, a damping rod is fixedly installed on the upper end of the movable block, a connecting spring is inserted and installed on the outer side of the damping rod, and a limit tube is movably installed on the top of the movable mold; the bottom plate can support the limit plate, and the limit plate can limit the position between the adjusting pistons.

[0009] As an optimal technical solution of the utility model, a slide groove structure is arranged above the base plate, and the adjusting piston is symmetrically installed on the upper and lower sides of the rear side vertical surface of the support plate with the center of the movable mold as the reference, and the movable end of the adjusting piston is fixedly connected to the front side vertical surface of the movable mold; the adjusting piston can drive the movable mold to move.

[0010] As the preferred technical solution of the utility model, the limit rod is installed on the front side of the fixed mold symmetrically and equidistantly up and down with the center of the fixed mold as the reference, and the bottom end of the fixed plate is fixedly connected to the bottom plate; the limit rod can limit the movement direction of the movable mold.

[0011] As a preferred technical solution of the utility model, the limit block is a triangular prism structure, and the limit block is installed on the front side of the fixed mold symmetrically up and down and left and right with the center of the fixed mold as the reference; the limit block can limit the relative position between the fixed mold and the movable mold.

[0012] As a preferred technical solution of the utility model, the rear side elevation of the movable mold is provided with a recessed structure engaged with the limit block, the bottom end of the movable mold is provided with a protrusion engaged with the bottom plate slide groove structure, and the movable mold is slidably connected with the limit rod and the bottom plate; the movable mold can facilitate the installation of the bottle embryo.

[0013] As the preferred technical solution of the utility model, the connecting block and the movable block form a rotational connection, the movable block is installed at the upper and lower ends of the damping rod in a mirror-symmetrical manner with the center of the damping rod as a reference, and the upper end of the damping rod forms a movable connection through the movable block, the connecting block and the limiting tube; the damping rod can easily limit the deformation of the connecting spring.

[0014] As a preferred technical solution of the utility model, the upper and lower ends of the connecting spring are fixedly connected to the movable blocks at the upper and lower ends of the damping rod respectively, and the damping rod is installed on the left and right sides of the limiting tube in a mirror-symmetrical manner with the center of the limiting tube as the reference; the limiting tube can limit the position of the bottle embryo.

[0015] Compared with the prior art, the utility model provides a cavity assembly positioning structure having the following features:

[0016] Beneficial effects:

[0017] 1. The utility model sets a limit rod, which is symmetrically installed on the front side of the fixed mold with the center of the fixed mold as the reference, and is equidistant up and down. The bottom end of the fixed plate is fixedly connected to the bottom plate, so that the fixed plate limits the position of the end of the limit rod. Since the movable mold is inserted and installed on the outside of the limit rod, and the movable mold and the limit rod are slidably connected, and a slide groove structure is arranged above the bottom plate, and a protrusion engaged with the slide groove structure of the bottom plate is arranged at the bottom end of the movable mold, when the adjusting piston drives the movable mold to move, the movement trajectory of the movable mold will be limited by the limit rod and the bottom plate, and a limit block is fixedly installed on the front side of the fixed mold. Since the limit block is a triangular prism structure, when the movable mold approaches the fixed mold, the limit block can limit the relative position between the movable mold and the fixed mold, so that the mold cavity is completely engaged and the mold cavity is prevented from being misplaced.

[0018] 2. The utility model sets a limiting tube, and the limiting tube is movably connected with the movable mold through the movable block, the connecting block, and the damping rod. Since the upper and lower ends of the connecting spring are respectively fixedly connected with the movable blocks at the upper and lower ends of the damping rod, when installing the bottle preform, the limiting tube is pulled upward to make the limiting tube pull the damping rod and the connecting spring, and then the bottle preform is installed on the top of the movable mold. After that, the limiting tube is loosened, and the limiting tube can be reset under the drive of the connecting spring. At this time, the threaded structure at the top of the bottle preform is inserted into the interior of the limiting tube, so that the bottle preform is limited to the top of the movable mold to prevent the bottle preform from slipping from the top of the mold cavity when the movable mold moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the regulating piston and the base plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the bottom plate and the fixed mold of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the limit tube and the damping rod of the utility model;

[0023] Among them: 1. bottom plate; 11. limit plate; 12. adjusting piston; 13. support plate; 2. fixed mold; 21. limit rod; 22. limit block; 23. fixed plate; 24. movable mold; 25. connecting block; 26. movable block; 27. damping rod; 28. connecting spring; 29. ​​limit tube. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 - Figure 4 In this embodiment, a mold cavity assembly positioning structure includes: a base plate 1, a limiting plate 11 is fixedly installed on the top of the base plate 1, an adjusting piston 12 is fixedly installed on the rear side of the limiting plate 11, and a supporting plate 13 is fixedly installed on the outer side of the adjusting piston 12.

[0028] A slide groove structure is arranged above the bottom plate 1 , and the adjusting piston 12 is symmetrically installed on the upper and lower sides of the rear side elevation of the support plate 13 with the center of the movable mold 24 as the reference, and the movable end of the adjusting piston 12 is fixedly connected to the front side elevation of the movable mold 24 .

[0029] Specifically, the bottom plate 1 can support the limit plate 11 , the limit plate 11 can limit the position between the adjusting pistons 12 , the adjusting pistons 12 can drive the movable mold 24 to move, and the support plate 13 can support the adjusting pistons 12 .

[0030] A fixed mold 2 is fixedly installed above the base plate 1, a limiting rod 21 is fixedly installed on the front side of the fixed mold 2, a limiting block 22 is fixedly installed on the front side of the fixed mold 2, a fixed plate 23 is fixedly installed on the front end of the limiting rod 21, a movable mold 24 is inserted and installed on the outer side of the limiting rod 21, a connecting block 25 is fixedly installed above the movable mold 24, a movable block 26 is movably installed above the connecting block 25, a damping rod 27 is fixedly installed on the upper end of the movable block 26, a connecting spring 28 is inserted and installed on the outer side of the damping rod 27, and a limiting tube 29 is movably installed above the movable mold 24.

[0031] The limiting rod 21 is installed on the front side of the fixed mold 2 symmetrically and equidistantly up and down with the center of the fixed mold 2 as a reference, and the bottom end of the fixed plate 23 is fixedly connected to the bottom plate 1.

[0032] The limit block 22 is a triangular prism structure, and is installed on the front side of the fixed mold 2 symmetrically up and down and left and right with the center of the fixed mold 2 as a reference.

[0033] The rear side elevation of the movable mold 24 is provided with a recessed structure engaged with the limit block 22, and the bottom end of the movable mold 24 is provided with a protrusion engaged with the slide groove structure of the bottom plate 1, and the movable mold 24 and the limit rod 21 and the bottom plate 1 are all slidably connected.

[0034] The connecting block 25 and the movable block 26 are rotatably connected. The movable block 26 is installed at the upper and lower ends of the damping rod 27 in a mirror-symmetrical manner with the center of the damping rod 27 as a reference. The upper end of the damping rod 27 is movably connected through the movable block 26, the connecting block 25 and the limiting tube 29.

[0035] The upper and lower ends of the connecting spring 28 are fixedly connected to the movable blocks 26 at the upper and lower ends of the damping rod 27 respectively. The damping rod 27 is installed on the left and right sides of the limiting tube 29 in a mirror-symmetrical manner with the center of the limiting tube 29 as the reference.

[0036] Specifically, the fixed mold 2 can limit the position of the limiting rod 21, the limiting rod 21 can limit the movement direction of the movable mold 24, the limiting block 22 can limit the relative position between the fixed mold 2 and the movable mold 24, the fixed plate 23 can limit the position of the end of the limiting rod 21, the movable mold 24 can facilitate the installation of the bottle embryo, the connecting block 25 can limit the position of the movable block 26, the movable block 26 can facilitate the rotation connection between the damping rod 27 and the connecting block 25, the damping rod 27 can facilitate the deformation of the connecting spring 28, the connecting spring 28 can drive the limiting tube 29 to reset, and the limiting tube 29 can limit the position of the bottle embryo.

[0037] When in use, since the limit rod 21 is installed on the front side of the fixed mold 2 symmetrically and equidistantly up and down with the center of the fixed mold 2 as the reference, the bottom end of the fixed plate 23 is fixedly connected to the bottom plate 1, so that the fixed plate 23 limits the position of the end of the limit rod 21. Since the movable mold 24 is inserted and installed on the outside of the limit rod 21, and the movable mold 24 and the limit rod 21 are slidably connected, and at the same time, a slide groove structure is arranged above the bottom plate 1, and a protrusion is arranged at the bottom end of the movable mold 24 that is engaged with the slide groove structure of the bottom plate 1, when the adjusting piston 12 drives the movable mold 24 to move, the movement trajectory of the movable mold 24 will be limited by the limit rod 21 and the bottom plate 1, and the limit block 22 is fixedly installed on the front side of the fixed mold 2. Since the limit block 22 is a triangular prism structure, when the movable mold 24 approaches the fixed mold 2, the limit block 22 can limit the movable mold 24. The relative position between the movable mold 24 and the fixed mold 2 is adjusted so that the mold cavity is completely embedded to avoid dislocation of the mold cavity. The limiting tube 29 is movably connected with the movable mold 24 through the movable block 26, the connecting block 25 and the damping rod 27. Since the upper and lower ends of the connecting spring 28 are respectively fixedly connected with the movable blocks 26 at the upper and lower ends of the damping rod 27, the limiting tube 29 is pulled upward when installing the bottle preform, so that the limiting tube 29 pulls the damping rod 27 and the connecting spring 28, and then the bottle preform is embedded and installed on the top of the movable mold 24, and then the limiting tube 29 is loosened. The limiting tube 29 can be reset under the drive of the connecting spring 28. At this time, the threaded structure at the top of the bottle preform is inserted into the inside of the limiting tube 29, so that the bottle preform is limited to the top of the movable mold 24 to avoid the situation that the bottle preform may slip from the top of the mold cavity when the movable mold 24 moves.

[0038] 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 mold cavity assembly positioning structure, characterized in that: include: A bottom plate (1), a limit plate (11) is fixedly installed above the bottom plate (1), an adjusting piston (12) is fixedly installed on the rear side of the limit plate (11), a support plate (13) is fixedly installed on the outer side of the adjusting piston (12), a fixed mold (2) is fixedly installed above the bottom plate (1), a limit rod (21) is fixedly installed on the front side of the fixed mold (2), a limit block (22) is fixedly installed on the front side of the fixed mold (2), and the front end of the limit rod (21) A fixed plate (23) is fixedly installed, a movable mold (24) is inserted and installed on the outer side of the limit rod (21), a connecting block (25) is fixedly installed above the movable mold (24), a movable block (26) is movably installed above the connecting block (25), a damping rod (27) is fixedly installed on the upper end of the movable block (26), a connecting spring (28) is inserted and installed on the outer side of the damping rod (27), and a limit tube (29) is movably installed above the movable mold (24).

2. A mold cavity assembly positioning structure according to claim 1, characterized in that: A slide groove structure is provided above the bottom plate (1); the regulating piston (12) is symmetrically mounted on the upper and lower sides of the rear side vertical surface of the support plate (13) with the center of the movable mold (24) as a reference; and the movable end of the regulating piston (12) is fixedly connected to the front side vertical surface of the movable mold (24).

3. A mold cavity assembly positioning structure according to claim 1, characterized in that: The limiting rod (21) is installed on the front side of the fixed mold (2) symmetrically and equidistantly up and down with the center of the fixed mold (2) as a reference, and the bottom end of the fixed plate (23) is fixedly connected to the bottom plate (1).

4. A mold cavity assembly positioning structure according to claim 1, characterized in that: The limit block (22) is a triangular prism structure, and the limit block (22) is symmetrically installed on the front side of the fixed mold (2) with the center of the fixed mold (2) as a reference, vertically and horizontally.

5. The mold cavity assembly positioning structure according to claim 1, characterized in that: The rear side vertical surface of the movable mold (24) is provided with a recessed structure engaged with the limit block (22), and the bottom end of the movable mold (24) is provided with a protrusion engaged with the slide groove structure of the bottom plate (1), and the movable mold (24) is slidably connected with the limit rod (21) and the bottom plate (1).

6. A mold cavity assembly positioning structure according to claim 1, characterized in that: The connecting block (25) and the movable block (26) are rotatably connected. The movable block (26) is mounted on the upper and lower ends of the damping rod (27) in a mirror-symmetrical manner with the center of the damping rod (27) as a reference. The upper end of the damping rod (27) is movably connected through the movable block (26), the connecting block (25) and the limit tube (29).

7. The mold cavity assembly positioning structure according to claim 1, characterized in that: The upper and lower ends of the connecting spring (28) are respectively fixedly connected to the movable blocks (26) at the upper and lower ends of the damping rod (27); the damping rod (27) is installed on the left and right sides of the limiting tube (29) in a mirror-symmetrical manner with the center of the limiting tube (29) as a reference.

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