Blow molding mandrel link convenient to replace

Abstract

The utility model relates to the technical field of mandrel links, and discloses a blow molding mandrel link convenient to replace, which comprises an inner chain plate, the front side of which is attached to the rear side of an outer chain plate; a blank seat pull rod is arranged at the upper end of the inner chain plate and attached to the outer chain plate, lifting rods are arranged in penetrating cylindrical grooves formed in the inner chain plate and the outer chain plate, lifting pieces are arranged on the lifting rods, and a rotation synchronous belt wheel is arranged on the right side of each lifting rod. According to the blow molding mandrel chain convenient to replace, the inner chain plate and the outer chain plate can be stably connected through the blank seat pull rod, and rotation of the lifting rod is not affected while the lifting rod is supported through the deep groove ball bearing; the self-rotating synchronous belt wheel and a belt on a common flat key matched equipment machine play a self-rotating role for the lifting rod, simple and easy-to-obtain materials are used in a matched mode, the machining time is shortened, cost is low, the manufacturing requirement is not high, model changing is fast, efficiency is improved, connection is simple, and operation is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of core shaft links, in particular to a blow molding core shaft link which is easy to replace. Background Art

[0002] Blow molding mandrel connection is a mandrel connection method and structure used in the blow molding process. The blow molding process is usually used for blowing bottles in the beverage industry. The plastic raw materials are blown into the mold after being heated and softened, and formed into a specific shape with the help of the mandrel. Therefore, the mandrel is usually used to create an internal cavity or a specific shape. Therefore, in order to ensure the smoothness of the processing, when selecting the mandrel connection method, factors such as the stability of the connection, sealing and cost need to be considered.

[0003] However, the following problems still exist in the current plastic mandrel link:

[0004] For the furnace connection core shaft, the previous structural cost cycle was relatively high and long. Therefore, when in use, there was a problem of high cost, and the connection method was relatively complicated. It was inconvenient when disassembly, replacement or maintenance was required, and professional employees were required to perform the disassembly operation, which caused certain difficulties in the maintenance process. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a blow molding mandrel link that is easy to replace, which achieves the purpose of stable connection by adopting the cooperation of simple parts and components, and has the advantages of reduced processing time, low cost, low manufacturing requirements, fast changeover, simple connection and stable operation.

[0006] The utility model provides the following technical solutions: a blow molding mandrel link that is easy to replace, comprising an inner chain plate, the front side of which is fitted with the rear side of an outer chain plate; a base pull rod is provided at the upper end of the inner chain plate, and the base pull rod and the outer chain plate are fitted with each other, and lifting rods are provided in cylindrical grooves through which the inner chain plate and the outer chain plate are provided, and lifting plates are provided on the lifting rods, and a self-transmitting synchronous pulley is provided on the right side of the lifting rod, and an end cover is provided on the right side of the self-transmitting synchronous pulley, and the end cover is connected to the right side of the lifting rod, and hexagonal nuts are provided on the left and right sides of the base pull rod, and An elastic retaining ring for the shaft is arranged on the outside of the lifting rod, deep groove ball bearings are arranged on the inner link plate and the outer link plate, and the deep groove ball bearings are connected with the lifting rod, a spring is arranged on the outside of the lifting rod, elastic retaining rings and gaskets are arranged on the outside of the lifting rod, and the elastic retaining rings and gaskets for the holes are installed in the inner link plate, and the elastic retaining rings and gaskets for the holes are also installed in the outer link plate, an ordinary flat key is fitted in the groove opened on the lifting rod, a hexagon socket countersunk screw is arranged on the right side of the lifting rod, and a bushing is arranged in the first groove opened at the upper end of the inner chain plate and the outer chain plate.

[0007] Furthermore, the lower ends of the inner link plate and the outer link plate are provided with square through-heat dissipation grooves, and the left and right ends of the inner link plate and the outer link plate are provided with bearing holes. Through the above structure, it is convenient to increase the heat dissipation effect of the inner link plate and the outer link plate through the square through-heat dissipation grooves, and the deep groove ball bearings can be stably installed through the bearing holes.

[0008] Furthermore, the lifting rod is made of chrome-plated material, and the lifting rod forms a rotating mechanism through a deep groove ball bearing and an inner link plate, and the lifting rod forms a rotating mechanism through a deep groove ball bearing and an outer link plate. Through the above structure, it is convenient to support the lifting rod without affecting the rotation of the lifting rod.

[0009] Furthermore, there are two embryo base pull rods in total, and the two embryo base pull rods are respectively arranged at the upper end positions of the inner link plate and the outer link plate, and the outer diameters of the left and right sides of the embryo base pull rods are in contact with the bushings that protect them. Through the above structure, it is convenient to protect the left and right sides of the embryo base pull rod through the bushings.

[0010] Furthermore, a gear structure is arranged on the outside of the self-transmitting synchronous belt wheel, and the outer surface of the self-transmitting synchronous belt wheel is arranged to be smooth. Through the above structure, the self-transmitting synchronous belt wheel can cooperate with the belt on the equipment machine to play the role of self-rotation for the lifting rod.

[0011] Furthermore, a connecting groove that fits tightly with the ordinary flat key is provided on the right side of the lifting rod, and the connecting groove on the lifting rod is slightly larger than the ordinary flat key, and the depth of the connecting groove on the lifting rod is less than the height of the ordinary flat key. Through the above structure, it is convenient to assist in limiting the self-transmitting synchronous pulley when cooperating with the belt on the equipment machine under the action of the ordinary flat key.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The blow molding core shaft link which is easy to replace can realize a stable connection between the inner chain plate and the outer chain plate through the embryo seat pull rod, and can support the lifting rod without affecting the rotation of the lifting rod through the deep groove ball bearing, so that the lifting rod can be stably driven to rotate, and the self-transmitting synchronous pulley and the ordinary flat key cooperate with the belt on the equipment machine to play the role of self-rotation of the lifting rod, and the deep groove ball bearing can be protected and limited through the elastic retaining ring for the shaft, the elastic retaining ring for the hole and the gasket to avoid the movement or deviation of the deep groove ball bearing, which can effectively ensure the stability of the lifting rod during rotation, that is, by using simple and easily available materials for use in combination, the processing time is reduced, the cost is low, the manufacturing requirements are not high, the model change is fast and the efficiency is improved, the connection is simple, and the operation is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a top view of the stereoscopic structure of the embryo base pull rod of the utility model;

[0015] Figure 2 This is a side view of the three-dimensional structure of the lifting rod of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the lifting rod of the utility model when viewed from above;

[0017] Figure 4 This is a schematic diagram of the main three-dimensional cross-sectional structure of the lifting rod of the utility model;

[0018] Figure 5 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0019] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the embryo base tie rod of the utility model.

[0020] In the figure: 1. Inner link plate; 2. Outer link plate; 3. Base pull rod; 4. Lifting rod; 5. Lifting plate; 6. Self-transmitting synchronous pulley; 7. End cover; 8. Hexagonal nut; 9. Elastic retaining ring for shaft; 10. Deep groove ball bearing; 11. Spring; 12. Elastic retaining ring for hole; 13. Washer; 14. Ordinary flat key; 15. Hexagon socket countersunk screw; 16. Bushing. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-Figure 6 The utility model provides a technical solution: a blow molding mandrel link that is easy to replace, including an inner chain plate 1, the front side of which is in contact with the rear side of an outer chain plate 2, and the lower ends of the inner chain plate 1 and the outer chain plate 2 are both provided with square through heat dissipation grooves, and the left and right ends of the inner chain plate 1 and the outer chain plate 2 are both provided with bearing holes;

[0023] The inner link plate 1 and the outer link plate 2 are set to 6082 aluminum profile (6082 aluminum profile is an aluminum material that can be heat-treated and strengthened, with medium strength and good welding performance and corrosion resistance), so the service life of the inner link plate 1 and the outer link plate 2 can be effectively guaranteed and the production cost can be reduced, and the lower ends of the inner link plate 1 and the outer link plate 2 are provided with square through-heat dissipation grooves, through which the inner link plate 1 and the outer link plate 2 can be quickly cooled, and the left and right ends of the inner link plate 1 and the outer link plate 2 are provided with bearing holes, which can achieve the purpose of stable installation of the deep groove ball bearing 10;

[0024] A base rod 3 is provided at the upper end of the inner link plate 1, and the base rod 3 and the outer link plate 2 are fitted together, and hexagonal nuts 8 are provided on the left and right sides of the base rod 3. Deep groove ball bearings 10 are provided on both the inner link plate 1 and the outer link plate 2. There are two base rods 3 in total, and the two base rods 3 are respectively provided at the upper ends of the inner link plate 1 and the outer link plate 2, and the outer diameters of the left and right sides of the base rod 3 are in contact with bushings 16 for protection thereof;

[0025] Because the plate-like structure arranged at the upper ends of the inner link plate 1 and the outer link plate 2 is provided with a deep groove ball bearing 10, and the deep groove ball bearing 10 is connected to the embryo seat tie rod 3, the inner link plate 1 and the outer link plate 2 can be connected through the two embryo seat tie rods 3, and the outer diameter of the embryo seat tie rod 3 contacts four bushings 16, that is, the outer diameters of the left and right sides of the embryo seat tie rod 3 both contact the bushings 16 for protection. At this time, the left and right sides of the embryo seat tie rod 3 can be limited by the bushings 16, and the hexagonal nuts 8 at both ends of the embryo seat tie rod 3 have a stepped outer diameter that acts in the groove on the machine table. At the same time, the four bearings at both ends play the role of stabilizing the two hundred linking spindles of the entire machine in vertical circular operation;

[0026] A lifting rod 4 is provided in the cylindrical grooves through which the inner chain plate 1 and the outer chain plate 2 are opened, and a lifting sheet 5 is provided on the lifting rod 4. A self-transmitting synchronous pulley 6 is provided on the right side of the lifting rod 4, and an end cover 7 is provided on the right side of the self-transmitting synchronous pulley 6, and the end cover 7 is connected to the right side of the lifting rod 4, and an elastic retaining ring 9 for the shaft is provided on the outside of the lifting rod 4, and the inside of the deep groove ball bearing 10 is connected to the lifting rod 4, a spring 11 is provided on the outside of the lifting rod 4, and an elastic retaining ring 12 and a gasket 13 for the hole are provided on the outside of the lifting rod 4, and the elastic retaining ring 12 and the gasket 13 for the hole are installed in the inner chain plate 1, and the elastic retaining ring 12 and the gasket 13 for the hole are also installed in the outer chain plate 2, and the groove opened on the lifting rod 4 is fitted with a A common flat key 14 is arranged, a hexagon socket countersunk screw 15 is arranged on the right side of the lifting rod 4, and a bushing 16 is arranged in the first groove opened at the upper ends of the inner chain plate 1 and the outer chain plate 2, the lifting rod 4 is a chrome-plated surface material, and the lifting rod 4 forms a rotating mechanism with the inner chain plate 1 through a deep groove ball bearing 10, and the lifting rod 4 forms a rotating mechanism with the outer chain plate 2 through a deep groove ball bearing 10, a gear structure is arranged on the outside of the self-transmitting synchronous pulley 6, and the outer surface of the self-transmitting synchronous pulley 6 is arranged to be smooth, a connecting groove that fits closely with the common flat key 14 is opened on the right side of the lifting rod 4, and the connecting groove opened on the lifting rod 4 is slightly larger than the common flat key 14, and the depth of the connecting groove opened on the lifting rod 4 is less than the height of the common flat key 14;

[0027] Deep groove ball bearings 10 are arranged in the through-mounting grooves opened at the lower ends of the inner link plate 1 and the outer link plate 2, and the deep groove ball bearings 10 are connected to the lifting rod 4. Therefore, under the action of the deep groove ball bearings 10, the lifting rod 4 can be supported without affecting the rotation of the lifting rod 4. The lifting rod 4 is made of chrome-plated material on the surface. Under the action of the deep groove ball bearings 10, the lifting rod 4 moves up and down and the inner hole of the bearing has a high wear resistance life, and is used as a link and a rotating mandrel head. The outer surface of the lifting rod 4 has a retaining spring for limiting and fixing, and the lifting rod The spring 11 arranged outside the lifting rod 4 is used as a component for up and down movement. The lifting rod 4 is provided with a lifting sheet 5, which is made of hardened material. Therefore, the lifting sheet 5 has the effects of wear resistance and impact resistance. The lifting sheet 5 can play the role of inserting the bottle embryo. In addition, because the lifting rod 4 is provided with a self-transmitting synchronous pulley 6 on the right side, the self-transmitting synchronous pulley 6 can cooperate with the belt on the equipment machine, and under the action of the ordinary flat key 14, the auxiliary key can cooperate with the belt on the equipment machine, so that the belt on the equipment machine drives the lifting rod 4 to rotate, and the self-rotation effect of the lifting rod 4 is realized.

[0028] 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 blow molding mandrel link that is easy to replace, comprising an inner link plate (1), the front side of which is in contact with the rear side of an outer link plate (2); characterized in that: Also includes: A base pull rod (3) is arranged at the upper end of the inner link plate (1), and the base pull rod (3) and the outer link plate (2) are fitted with each other. A lifting rod (4) is arranged in the cylindrical grooves through which the inner link plate (1) and the outer link plate (2) are provided. A lifting plate (5) is arranged on the lifting rod (4). A self-transmitting synchronous pulley (6) is arranged on the right side of the lifting rod (4), and an end cover (7) is arranged on the right side of the self-transmitting synchronous pulley (6), and the end cover (7) is connected to the right side of the lifting rod (4). Hexagonal nuts (8) are arranged on the left and right sides of the base pull rod (3), and a shaft elastic retaining ring (9) is arranged on the outside of the lifting rod (4). Deep groove ball shafts are arranged on the inner link plate (1) and the outer link plate (2). The lifting rod (4) is provided with a spring (11) on the outside, and an elastic retaining ring (12) and a gasket (13) for the hole are provided on the outside of the lifting rod (4). The elastic retaining ring (12) and the gasket (13) for the hole are both installed in the inner link plate (1), and the elastic retaining ring (12) and the gasket (13) for the hole are also installed in the outer link plate (2). A common flat key (14) is fitted in a groove provided on the lifting rod (4), a hexagon socket countersunk screw (15) is provided on the right side of the lifting rod (4), and a bushing (16) is provided in a first groove provided on the upper ends of the inner link plate (1) and the outer link plate (2).

2. The easily replaceable blow molding mandrel link according to claim 1, characterized in that: The lower ends of the inner link plate (1) and the outer link plate (2) are both provided with square through-going heat dissipation grooves, and the left and right ends of the inner link plate (1) and the outer link plate (2) are both provided with bearing holes.

3. The blow molding mandrel link that is easy to replace according to claim 1, characterized in that: The lifting rod (4) is made of a chrome-plated surface material, and the lifting rod (4) forms a rotating mechanism with the inner link plate (1) through a deep groove ball bearing (10), and the lifting rod (4) forms a rotating mechanism with the outer link plate (2) through the deep groove ball bearing (10).

4. The easily replaceable blow molding mandrel link according to claim 1, characterized in that: There are two embryo base pull rods (3) in total, and the two embryo base pull rods (3) are respectively arranged at the upper ends of the inner link plate (1) and the outer link plate (2), and the outer diameters of the left and right sides of the embryo base pull rods (3) are in contact with bushings (16) for protecting them.

5. The easily replaceable blow molding mandrel link according to claim 1, characterized in that: The self-transmitting synchronous belt wheel (6) is provided with a gear tooth structure on the outside, and the outer surface of the self-transmitting synchronous belt wheel (6) is arranged to be smooth.

6. The easily replaceable blow molding mandrel link according to claim 1, characterized in that: The right side of the lifting rod (4) is provided with a connecting groove which fits tightly with the common flat key (14), and the connecting groove provided on the lifting rod (4) is slightly larger than the common flat key (14), and the depth of the connecting groove provided on the lifting rod (4) is less than the height of the common flat key (14).

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