Screw opening withdrawing mechanism for bottle body mold
By designing a screw-out mechanism for the bottle mold and utilizing a screw and gear transmission system, the problem of the blow needle being unable to detach from the bottle mouth was solved, enabling blow molding of internal threads and convenient demolding.
Patent Information
- Application Number
- CN202422836098.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-20
AI Technical Summary
In the prior art, during blow molding of plastic bottles with internal threads at the bottle mouth, the blow needle cannot easily detach from the bottle mouth, resulting in processing difficulties.
A screw ejection mechanism for bottle molds was designed. The mechanism uses a screw-driven gear transmission system to enable the blow needle to form internal threads during blow molding and facilitate demolding. The mechanism includes the coordinated operation of components such as screw, limit bearing, gear, and cylinder.
This technology enables the blow needle to smoothly form internal threads during the blow molding process and to easily detach from the bottle mouth after processing, thereby improving production efficiency and processing success rate.
Smart Images
Figure CN223456456U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to plastic blow molding technical field, concretely is a screw mouth exit mechanism for bottle body mould. BACKGROUND
[0002] The plastic bottle is mainly made of polyethylene or polypropylene and a plurality of organic solvents. The plastic bottle is widely used with polyester (PET), polyethylene (PE) and polypropylene (PP) as raw materials, and after adding corresponding organic solvents, through high-temperature heating, the plastic container is formed through blow molding, extrusion blow molding or injection molding, and is mainly used for beverage, food, pickles, honey, dried fruit, edible oil, agricultural and veterinary drug liquid or solid disposable plastic packaging containers.
[0003] The plastic bottle is usually externally threaded, and there is a certain demand for the plastic bottle with an internally threaded mouth in the existing market. When the plastic bottle with an internally threaded mouth is processed by blow molding, the blow needle cannot be smoothly separated from the plastic bottle. UTILITY MODEL CONTENT
[0004] The utility model provides a screw mouth exit mechanism for bottle body mould to solve the problem in the background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a screw mouth exit mechanism for bottle body mould, including upper plate, the bottom four corners of upper plate are connected with lower plate through fixed link, the top of lower plate is installed with fixed frame, the fixed frame is connected with screw rod of end activity and is penetrated lower plate, the bottom of screw rod is fixedly connected with lifting plate, the inner chamber of fixed frame is installed with two up and down arranged limit bearing that is penetrated screw rod, the inner chamber of two fixed frames is located between two limit bearings and is rotatably connected with first gear wheel of built-in nut, the nut is connected with screw rod, the top of lower plate is rotatably connected with upper rotating shaft that is located in fixed frame, the upper rotating shaft is fixedly provided with second gear wheel that is engaged with first gear wheel, the bottom of upper rotating shaft is penetrated lower plate and is movably connected with lower rotating shaft, the lower rotating shaft is rotatably penetrated lifting plate and is connected with blow needle head with external thread.
[0006] Further, the top of the upper plate is provided with an output shaft penetrating the upper plate and connected to the screw rod.
[0007] Further, the bottom end of the upper rotating shaft is provided with a movable groove, the inner wall of the bottom of the movable groove is fixedly connected with a rectangular rod, the top end of the lower rotating shaft extends into the movable groove, and the top of the lower rotating shaft is provided with a rectangular groove into which the rectangular rod is inserted.
[0008] Further, the top of the lifting plate is fixedly connected with a guide rod movably penetrating the lower plate.
[0009] Further, the top of the lower plate is provided with a linear bearing through which a guide rod passes.
[0010] Further, the blow needle head and the lower rotating shaft are internally formed with a matched blow channel.
[0011] Compared with the prior art, the bottle body mold screw hole withdrawal mechanism has the following beneficial effects: the bottle body mold screw hole withdrawal mechanism, in the process of driving the lifting plate to lift, the screw rod can drive the nut inside the first gear to rotate, so that the first gear drives the upper rotating shaft sleeved with the second gear to rotate, and the lower rotating shaft can lift along with the lifting plate in the process of rotation, so that the blow needle head can extend into the bottle opening to process and form internal threads when blow molding, and demolding is facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a structural schematic view of the utility model;
[0013] Figure 2 It is a plane structural schematic view of the utility model;
[0014] Figure 3 It is an enlarged schematic view of A of the utility model;
[0015] Figure 4 It is a structural schematic view of the lower rotating shaft of the utility model.
[0016] In the drawing: 1, upper plate; 2, fixed rod; 3, lower plate; 4, air cylinder; 5, fixed frame; 6, screw rod; 7, lifting plate; 8, first gear; 9, limit bearing; 10, second gear; 11, upper rotating shaft; 12, movable groove; 13, lower rotating shaft; 14, rectangular groove; 15, rectangular rod; 16, blow needle head; 17, guide rod; 18, blow channel. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0018] Please refer to Figures 1-4The utility model discloses a kind of screw mouth withdrawal mechanism for bottle body mould, including upper plate 1, the bottom four corners of upper plate 1 are connected with lower plate 3 by fixed link 2, the top of lower plate 3 is equipped with fixed frame 5, the fixed frame 5 is connected with end portion movable screw rod 6 that penetrates lower plate 3, the bottom end of screw rod 6 is fixedly connected with lifting plate 7, the inner chamber of fixed frame 5 is equipped with two upper and lower limit bearing 9 that screw rod 6 passes, the inner chamber of two fixed frame 5 is rotatably connected between two limit bearing 9 with first gear 8 of built-in nut, the nut is screwed screw rod 6, the top of lower plate 3 is rotatably connected with upper rotary shaft 11 that top is located in fixed frame 5, second gear 10 that is engaged with first gear 8 is fixedly sheathed on upper rotary shaft 11, the bottom end of upper rotary shaft 11 penetrates lower plate 3 and movably connects lower rotary shaft 13, lower rotary shaft 13 rotatably penetrates lifting plate 7 and is connected with needle blowing head 16 with external thread.
[0019] Specifically, the top of the upper plate 1 is provided with a gas cylinder 4 penetrating the upper plate 1 and connected with the screw rod 6.
[0020] In the embodiment, the gas cylinder 4 can also be replaced by a hydraulic cylinder.
[0021] Specifically, the bottom end of the upper rotary shaft 11 is provided with a movable groove 12, the inner wall of the bottom of the movable groove 12 is fixedly connected with a rectangular rod 15, the top end of the lower rotary shaft 13 extends into the movable groove 12, and the top of the lower rotary shaft 13 is provided with a rectangular groove 14 into which the rectangular rod 15 is inserted.
[0022] In the embodiment, the rectangular rod 15 is in the shape of a cuboid, and the rectangular groove 14 cooperates with the rectangular rod 15, so that when the upper rotary shaft 11 rotates, the lower rotary shaft 13 can be lifted and rotated relative to the upper rotary shaft 11.
[0023] Of course, the upper rotary shaft 11 and the lower rotary shaft 13 can also be connected through the cooperation of splines and spline grooves.
[0024] Specifically, the top side of the lifting plate 7 is fixedly connected with a guide rod 17 movably penetrating the lower plate 3.
[0025] The top of the lower plate 3 is provided with a linear bearing penetrated by the guide rod 17.
[0026] In the embodiment, the cooperation of the guide rod 17 and the linear bearing can facilitate the lifting of the lifting plate 7.
[0027] Specifically, the needle blowing head 16 and the lower rotary shaft 13 form a blowing passage 18 thereinside.
[0028] In the embodiment, the part of the lower rotary shaft 13 above the lifting plate 7 and below the lower plate 3 is connected with an air inlet cooperating with the blowing passage 18.
[0029] In use, the lifting plate 7 is driven to displace, so that the blow pin 16 is inserted into the plastic bottle embryo located in the mold and blow molded, the blow pin 16 blows, the blow molding is carried out, so that the bottle mouth forms internal thread, then drives the lifting plate 7 to displace reversely, the lower shaft 13 can drive the blow pin 16 to rotate and separate from the bottle mouth.
[0030] In summary, the bottle body mold uses the screw mouth exit mechanism, in the process of driving the lifting plate 7 to lift, the screw rod 6 can drive the nut inside the first gear 8 to rotate, so that the first gear 8 drives the upper shaft 11 sleeved with the second gear 10 to rotate, the lower shaft 13 can lift along with the lifting plate 7 in the process of rotating, so that the blow pin 16 blows and forms internal thread when processing the bottle mouth, and demolding is facilitated.
[0031] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A screw-out ejection mechanism for a bottle body mould, comprising an upper plate (1), characterised in that: The bottom four corners of the upper plate (1) are connected with the lower plate (3) through the fixed rod (2), the top of the lower plate (3) is installed with the fixed frame (5), the fixed frame (5) is connected with the screw rod (6) which is movably penetrated through the lower plate (3), the bottom end of the screw rod (6) is fixedly connected with the lifting plate (7), the inner cavity of the fixed frame (5) is installed with two upper and lower limiting bearings (9) which are penetrated through by the screw rod (6), the inner cavity of the two fixed frames (5) is rotatably connected with the first gear (8) with built-in nut between the two limiting bearings (9), the nut is threadedly connected with the screw rod (6), the top of the lower plate (3) is rotatably connected with the upper rotating shaft (11) which is located in the fixed frame (5), the upper rotating shaft (11) is fixedly sleeved with the second gear (10) which is engaged with the first gear (8), the bottom end of the upper rotating shaft (11) is penetrated through the lower plate (3) and movably connected with the lower rotating shaft (13), the lower rotating shaft (13) is rotatably penetrated through the lifting plate (7) and connected with the blowing needle head (16) with external threads.
2. A screw exit mechanism for a bottle mold as defined in claim 1, wherein: The top of the upper plate (1) is installed with the air cylinder (4) which is penetrated through the upper plate (1) and connected with the screw rod (6).
3. A screw exit mechanism for a bottle mold as defined in claim 1, wherein: The bottom end of the upper rotating shaft (11) is provided with the movable groove (12), the inner bottom wall of the movable groove (12) is fixedly connected with the rectangular rod (15), the top end of the lower rotating shaft (13) extends into the movable groove (12), and the top of the lower rotating shaft (13) is provided with the rectangular groove (14) which is inserted by the rectangular rod (15).
4. A screw exit mechanism for a bottle mold as defined in claim 1, wherein: The top side of the lifting plate (7) is fixedly connected with the guide rod (17) which is movably penetrated through the lower plate (3).
5. A screw exit mechanism for a bottle mold as defined in claim 4, wherein: The top of the lower plate (3) is installed with the linear bearing which is penetrated through by the guide rod (17).
6. A screw exit mechanism for a bottle mold as defined in claim 1, wherein: The inside of the blowing needle head (16) and the lower rotating shaft (13) forms the matched blowing channel (18).