CN116118158B

CN116118158B - Driving mechanism for opening and closing double-die-opening die carrier

Info

Publication number: CN116118158B
Application number: CN202211572152.XA
Authority: CN
Inventors: 叶鹏; 吴书朋; 张晓飞
Original assignee: Jiangsu Newamstar Packagin Machinery Co Ltd
Current assignee: Jiangsu Newamstar Packagin Machinery Co Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-11-17
Anticipated expiration: 2042-12-08
Also published as: CN116118158A

Abstract

The invention discloses a driving mechanism for opening and closing a double-mold opening die frame, which is characterized in that a roller drives a sliding part to slide or drives a seventh connecting rod to rotate through rolling of a mold opening and closing cam so as to drive a fifth connecting rod and a sixth connecting rod to rotate respectively, and the first connecting rod and the second connecting rod which are arranged between the fifth connecting rod and the first mold frame, and the third connecting rod and the fourth connecting rod which are arranged between the sixth connecting rod and the second mold frame can drive the first mold frame and the second mold frame to complete mold opening and closing actions, and can complete mold locking actions and compensating actions while completing mold closing actions, and can complete compensation actions and unlocking actions while completing mold opening actions; the stress condition of the mould shell is improved, the elastic deformation of the mould shell is reduced, and the running stability of the mould shell is improved; the mould locking structure is omitted, the mould locking action is completed by adopting the mechanism self-locking, moving parts are reduced, and the movement performance of the mould shell is improved.

Description

Driving mechanism for opening and closing double-die-opening die carrier

Technical Field

The invention relates to the technical field of bottle blowing, in particular to a driving mechanism for opening and closing a double-die-opening die carrier.

Background

Along with the development of the rotary bottle blowing machine, the requirement on the production efficiency of the bottle blowing machine is higher and higher, and the bottle blowing amount of a single mode per hour is improved, so that the rotary bottle blowing machine has a trend of development.

The existing double-die-opening die carrier is affected by the machining precision, and cannot realize high-speed bottle blowing when the preset die locking precision is not achieved; and the mould shell needs high-pressure air compensation during blowing, and the force generated by the mould shell is very large, so that the stress condition of the mould shell is poor and the deformation is large.

Disclosure of Invention

The invention aims to provide a driving mechanism for opening and closing a double-die-opening die carrier, which can realize die assembly self-locking and compensation, and automatic die opening unlocking and compensation elimination, has a simple structure and lower die locking precision requirement, improves the stress condition of the die carrier, and improves the motion performance and the motion stability of the die carrier.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the utility model provides a actuating mechanism that two die mould framves opened and shut, locates in the frame to can open and shut the mould cam relatively and rotate, actuating mechanism includes:

a first connecting rod with one end rotatably connected to the first mould shell around a first axial lead, a second connecting rod with one end rotatably connected to the frame around a second axial lead, and the other end of the first connecting rod and the other end of the second connecting rod are rotatably connected around a third axial lead;

a third connecting rod with one end rotatably connected to the second mould shell around a fourth axis, a fourth connecting rod with one end rotatably connected to the frame around a fifth axis, and the other end of the third connecting rod and the other end of the fourth connecting rod are rotatably connected around a sixth axis;

the sliding piece is arranged on the rack in a sliding manner along a first direction, one end of the sliding piece is connected to the first connecting rod or the second connecting rod in a rotating manner around a seventh axis, one end of the fifth connecting rod is connected to the third connecting rod or the fourth connecting rod in a rotating manner around an eighth axis, and the other end of the fifth connecting rod and the other end of the sixth connecting rod are respectively connected to the sliding piece in a rotating manner around a ninth axis;

a roller which can rotate around the axis of the roller and is propped against the mold opening and closing cam through the outer peripheral part; the roller can be rotatably arranged on the sliding piece around the self axis, or the roller can be rotatably arranged at one end of a seventh connecting rod around the self axis, and the other end of the seventh connecting rod is connected to the second connecting rod or the fourth connecting rod;

the first die shell and the second die shell are respectively connected to the frame in a rotating mode around a central axis line of the central shaft, an extension line of a sliding path of the sliding piece is intersected with the central axis line of the central shaft, and when the first die shell and the second die shell are in a die closing position:

the first connecting rod is parallel to the second connecting rod, the third connecting rod is parallel to the fourth connecting rod, and an included angle between the fifth connecting rod and the sixth connecting rod is between 175 degrees and 180 degrees;

or the first connecting rod is intersected with the second connecting rod, the third connecting rod is intersected with the fourth connecting rod, the fifth connecting rod is intersected with the sixth connecting rod, and an elastic component for elastically abutting against the sliding piece is arranged on the frame so that the first die shell and the second die shell are kept at the die assembly position.

Preferably, the seventh axis and the third axis coincide, and the eighth axis and the sixth axis coincide.

Preferably, the other end of the seventh link rotates about the second axis, or the other end of the seventh link rotates about the fifth axis.

Preferably, the frame is further provided with a limiting member for blocking the sliding member from continuing to slide from the clamping position along the clamping direction.

More preferably, the stopper is provided in one-to-one correspondence on a path in which at least one of the slide, the first link, the second link, the third link, the fourth link, the fifth link, the sixth link, the first mold shell, and the second mold shell continues to move from the mold clamping position in the mold clamping direction;

or in ten of the sliding piece, the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the fifth connecting rod, the sixth connecting rod, the first mould shell, the second mould shell and the seventh connecting rod, the limiting pieces are arranged on paths of continuous movement of at least one of the sliding pieces, the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the fifth connecting rod, the sixth connecting rod, the first mould shell, the second mould shell and the seventh connecting rod in a one-to-one correspondence manner.

Preferably, the elastic member is configured to provide an elastic restoring force for driving the first and second forms to be elastically locked.

Preferably, when the sliding piece slides forward along the first direction, the sliding piece is used for driving the first mould shell to rotate for mould opening through the first connecting rod, the second connecting rod and the fifth connecting rod, and the sliding piece is used for driving the second mould shell to rotate for mould opening through the third connecting rod, the fourth connecting rod and the sixth connecting rod;

when the sliding piece slides reversely along the first direction, the sliding piece is used for driving the first mould shell to rotate and clamp through the first connecting rod, the second connecting rod and the fifth connecting rod, and the sliding piece is used for driving the second mould shell to rotate and clamp through the third connecting rod, the fourth connecting rod and the sixth connecting rod.

More preferably, the included angle between the fifth link and the sixth link gradually decreases when the slider slides forward in the first direction; when the sliding piece slides reversely along the first direction, the included angle between the fifth connecting rod and the sixth connecting rod is gradually increased.

Preferably, the first axis, the second axis, the third axis, the fourth axis, the fifth axis, the sixth axis, the seventh axis, the eighth axis, the ninth axis, the central axis and the axes of the rollers are parallel to each other;

the second axial lead and the middle axial lead are respectively positioned at two sides of the first axial lead which are different, and the fifth axial lead and the middle axial lead are respectively positioned at two sides of the first axial lead which are different.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the driving mechanism for opening and closing the double-die-opening die carrier not only can drive the first die shell and the second die shell to complete the die opening and closing actions, but also can complete the die locking action and the compensation action while completing the die closing action, and can complete the compensation action and the unlocking action while completing the die opening action; the stress condition of the mould shell is improved, the elastic deformation of the mould shell is reduced, and the running stability of the mould shell is improved; the mould locking structure is omitted, the mould locking action is completed by adopting the mechanism self-locking, moving parts are reduced, and the movement performance of the mould shell is improved.

Drawings

FIG. 1 is a schematic diagram of a mold closing structure of a driving mechanism in a first embodiment;

FIG. 2 is a schematic cross-sectional view taken along line AA in FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line BB in FIG. 1;

FIG. 4 is a schematic diagram of an open mold structure of a driving mechanism in the first embodiment;

FIG. 5 is a schematic diagram of the mold closing motion of the first embodiment;

FIG. 6 is a schematic diagram of the mold opening movement according to the first embodiment;

fig. 7 is a schematic diagram of a mold closing structure of a driving mechanism in the third embodiment.

Wherein: 1. a frame; 2. a mold opening and closing cam; 3. a first mold shell; 4. a first axis; 5. a first link; 6. a second axis; 7. a second link; 8. a third axis; 9. a second mold shell; 10. a fourth axis; 11. a third link; 12. a fifth axis; 13. a fourth link; 14. a sixth axis; 15. a slider; 16. a seventh axis; 17. a fifth link; 18. an eighth axis; 19. a sixth link; 20. a ninth axis; 21. a roller; 22. a seventh link; 23. a center axis line of the center shaft; 24. an elastic component; 25. a limiting piece; 26. a center shaft; 27. a fourth shaft; 28. a fifth shaft; 29. a sixth shaft; 30. an eighth shaft; 31. a guide sleeve.

Detailed Description

The technical scheme of the invention is further described below with reference to specific embodiments and drawings.

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "inner", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience in describing the embodiments of the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art according to specific circumstances.

In embodiments of the invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different implementations, or examples, for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the present invention, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present invention. Furthermore, embodiments of the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

Referring to fig. 1 and 4, a first embodiment provides a driving mechanism for opening and closing a dual-mold-opening mold frame, which is disposed on a frame 1. The first mould shell 3 and the second mould shell 9 are respectively connected on the frame 1 in a rotating way around a center axis 23 of the center shaft and can be opened and closed in a relative rotating way. The frame 1 drives the driving mechanism to rotate integrally relative to the mold opening and closing cam 2.

The driving mechanism includes:

a first connecting rod 5 with one end rotatably connected to the first mould shell 3 around a first axis 4, a second connecting rod 7 with one end rotatably connected to the frame 1 around a second axis 6, and the other end of the first connecting rod 5 and the other end of the second connecting rod 7 are rotatably connected around a third axis 8;

a third connecting rod 11 with one end rotatably connected to the second mould shell 9 around a fourth axis 10, a fourth connecting rod 13 with one end rotatably connected to the frame 1 around a fifth axis 12, and the other end of the third connecting rod 11 and the other end of the fourth connecting rod 13 are rotatably connected around a sixth axis 14;

a sliding member 15 slidably disposed in the frame 1 in the first direction, a fifth link 17 having one end rotatably connected to the first link 5 or the second link 7 about a seventh axis 16, and a sixth link 19 having one end rotatably connected to the third link 11 or the fourth link 13 about an eighth axis 18, the other end of the fifth link 17 and the other end of the sixth link 19 being rotatably connected to the sliding member 15 about a ninth axis 20, respectively;

a roller 21 rotatable about its own axis and provided on the mold opening/closing cam 2 via an outer peripheral portion.

Referring to fig. 1, a guide sleeve 31 is provided on the frame 1, and a slider 15 is slidably provided in the guide sleeve 31 in a first direction. The extension of the sliding path of the slider 15 intersects the central axis 23. The first, second and fifth links 5, 7 and 17 on the left side of the slider 15 are axisymmetrically arranged with the third, fourth and sixth links 11, 13 and 19 on the right side of the slider 15, respectively.

The roller 21 is rotatably provided at one end of the seventh link 22 about its own axis, and the other end of the seventh link 22 is connected to the second link 7 or the fourth link 13. In this embodiment, the seventh link 22 is connected to the fourth link 13 on the right, and the roller 21 rolls along the mold opening and closing cam 2, so that the seventh link 22 can be driven to rotate about the fifth axis 12 by the fourth link 13.

In the present embodiment, the first axis 4, the second axis 6, the third axis 8, the fourth axis 10, the fifth axis 12, the sixth axis 14, the seventh axis 16, the eighth axis 18, the ninth axis 20, the center axis 23, and the axes of the rollers 21 are parallel to each other; the second axis 6 and the central axis 23 are respectively located at two opposite sides of the first axis 4, and the fifth axis 12 and the central axis 23 are respectively located at two opposite sides of the first axis 4.

In the present embodiment, the other end of the seventh link 22 is rotatably connected to the frame 1 about the fifth axis 12.

In the second embodiment of the present embodiment, the roller 21 is rotatably disposed on the sliding member 15 about its own axis, and the sliding member 15 can be driven to slide in the first direction by the rolling of the roller 21 along the mold opening/closing cam 2, so as to drive the first mold shell 3 and the second mold shell 9 to open and close relatively.

In the third implementation manner of this embodiment, the seventh connecting rod 22 is connected to the second connecting rod 7 on the left side, and the roller 21 rolls along the mold opening and closing cam 2, so that the seventh connecting rod 22 can be driven to drive the second connecting rod 7 to rotate around the second axis 6, so as to drive the first mold shell 3 and the second mold shell 9 to open and close relatively. The other end of the seventh connecting rod 22 is rotatably connected to the frame 1 around the second axis 6.

Referring to FIG. 1, the first and second mold shells 3, 9 are in a closed position:

the first link 5 and the second link 7 intersect, the third link 11 and the fourth link 13 intersect, the fifth link 17 and the sixth link 19 intersect, and an elastic assembly 24 for elastically abutting the slide 15 to hold the first and second mold shells 3 and 9 in the closed position is provided on the frame 1. The elastic member is used for providing elastic restoring force for driving the first mould shell 3 and the second mould shell 9 to be locked elastically.

Referring to fig. 1, a first angle a is formed between the first link 5 and the second link 7, a second angle b is formed between the third link 11 and the fourth link 13, and a third angle c is formed between the fifth link 17 and the sixth link 19.

Referring to FIG. 4, when the first and second mold shells 3, 9 are in the open position, the first and second links 5, 7 intersect at an angle smaller than the closed position, the third and fourth links 11, 13 intersect at an angle smaller than the closed position, and the fifth and sixth links 17, 19 intersect at an angle smaller than the closed position.

Referring to FIGS. 5-6, when the slide 15 is slid in a forward direction (i.e., in the direction of the arrow in FIG. 6), the slide 15 is used to drive the first formwork 3 to open via the first, second and fifth links 5, 7 and 17 in a clockwise direction, and the slide 15 is also used to drive the second formwork 9 to open via the third, fourth and sixth links 11, 13 and 19 in a counterclockwise direction;

when the slide 15 slides in the reverse direction (i.e., arrow direction in fig. 5), the slide 15 is used to drive the first mold shell 3 to rotate counterclockwise to clamp via the first link 5, the second link 7, and the fifth link 17, and the slide 15 is also used to drive the second mold shell 9 to rotate clockwise to clamp via the third link 11, the fourth link 13, and the sixth link 19.

By arranging the first included angle a, the second included angle b and the third included angle c at the die closing position, the first die shell 3 and the second die shell 9 can be in a micro self-locking state at the die closing position. By providing the elastic member 24, the first and second mold forms 3 and 9 can be held in the mold-closed position, and the elastic member 24 can also realize the function of compensating the forces of the first and second mold forms 3 and 9.

Referring to fig. 5 to 6, the angle between the fifth link 17 and the sixth link 19 gradually decreases when the slider 15 slides forward in the first direction; the angle between the fifth link 17 and the sixth link 19 increases gradually as the slider 15 slides in the reverse direction in the first direction.

Referring to fig. 2-3, the first and second forms 3 and 9 are respectively sleeved on the central shaft 26, an eighth shaft 30 for connecting the sixth link 19 is connected to the third link 11, and a fifth shaft 28 is disposed through the fourth link 13. Taking the second mould shell 9 as an example, a plurality of groups of first grooves are arranged in the direction of the central axis 23 of the central shaft in the second mould shell 9 and are used for being matched with a plurality of groups of first bulges arranged in the direction of the central axis 23 of the central shaft of the third connecting rod 11 to enter, and the plurality of groups of first grooves and the plurality of groups of first bulges are penetrated and connected by a fourth shaft 27; the fourth connecting rod 13 is provided with a plurality of groups of second grooves along the direction of the central axis 23, and is used for being matched with a plurality of groups of second bulges arranged along the direction of the central axis 23 of the third connecting rod 11 to enter, and the plurality of groups of second grooves and the plurality of groups of second bulges are penetrated and connected by the sixth shaft 29. With this arrangement, the stability of the movement of the mechanism can be improved.

The second embodiment provides a driving mechanism for opening and closing the mold frame, and the difference between the second embodiment and the first embodiment mainly lies in: the seventh axis 16 coincides with the third axis 8 and the eighth axis 18 coincides with the sixth axis 14.

Referring to fig. 7, a third embodiment provides a driving mechanism for opening and closing a mold frame, and the difference between the third embodiment and the first embodiment is mainly that:

the frame 1 is not provided with an elastic component 24, and only provided with a limiting piece 25 for preventing the sliding piece 15 from sliding from the die clamping position along the die clamping direction.

In the present embodiment, in the mold closing position, the first link 5 and the second link 7 are parallel, the third link 11 and the fourth link 13 are parallel, and the angle between the fifth link 17 and the sixth link 19 is between 175 ° and 180 ° (both end points are included). By this arrangement, the tie rod at the mold closing position can be self-locked, and the first mold shell 3 and the second mold shell 9 can be locked. The self-locking of the connecting rods can also realize the die assembly compensation of the first die shell 3 and the second die shell 9.

In the first embodiment of the present embodiment, in the slide 15, the first link 5, the second link 7, the third link 11, the fourth link 13, the fifth link 17, the sixth link 19, the first mold shell 3, and the second mold shell 9, the stoppers 25 are provided in one-to-one correspondence on paths in which at least one of them continues to move from the mold clamping position in the mold clamping direction, and at this time, the rollers 21 are provided on the slide 15.

In the second embodiment of the present embodiment, in ten of the slide 15, the first link 5, the second link 7, the third link 11, the fourth link 13, the fifth link 17, the sixth link 19, the first mold shell 3, the second mold shell 9, and the seventh link 22, the stoppers 25 are provided in one-to-one correspondence on paths in which at least one of them continues to move from the mold closing position in the mold closing direction, and at this time, the rollers 21 are provided on the seventh link 22.

In the present embodiment, as shown in fig. 7, the stopper 25 is provided on a path along which the sixth link 19 continues to move in the mold clamping direction from the mold clamping position, and the stopper 25 is used to prevent the link from overshooting.

The working procedure of the second embodiment is specifically described below:

when the sliding piece 15 slides forward along the first direction, the fifth connecting rod 17 drives the first mould shell 3 to rotate clockwise around the central axis 23 of the central shaft through the first connecting rod 5 and the second connecting rod 7, and the sixth connecting rod 19 drives the second mould shell 9 to rotate anticlockwise around the central axis 23 of the central shaft through the third connecting rod 11 and the fourth connecting rod 13;

when the sliding piece 15 slides reversely along the first direction, the fifth connecting rod 17 drives the first mould shell 3 to rotate anticlockwise around the central axis 23 through the first connecting rod 5 and the second connecting rod 7, and the sixth connecting rod 19 drives the second mould shell 9 to rotate clockwise around the central axis 23 through the third connecting rod 11 and the fourth connecting rod 13;

in the clamped position, the first link 5 and the second link 7 are parallel, the third link 11 and the fourth link 13 are parallel, and the fifth link 17 and the sixth link 19 are parallel.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a actuating mechanism that two die mould frames opened and shut, locates in the frame to can open and shut the mould cam rotation relatively, its characterized in that: the driving mechanism includes:

or the first connecting rod is intersected with the second connecting rod, the third connecting rod is intersected with the fourth connecting rod, the fifth connecting rod is intersected with the sixth connecting rod, and an elastic component for elastically abutting against the sliding piece is arranged on the frame so as to enable the first mould shell and the second mould shell to be kept at the mould closing position;

when the sliding piece slides positively along the first direction, the sliding piece is used for driving the first mould shell to rotate for mould opening through the first connecting rod, the second connecting rod and the fifth connecting rod, and the sliding piece is used for driving the second mould shell to rotate for mould opening through the third connecting rod, the fourth connecting rod and the sixth connecting rod;

when the sliding piece slides reversely along the first direction, the sliding piece is used for driving the first mould shell to rotate and clamp through the first connecting rod, the second connecting rod and the fifth connecting rod, and the sliding piece is used for driving the second mould shell to rotate and clamp through the third connecting rod, the fourth connecting rod and the sixth connecting rod;

when the sliding piece slides positively along the first direction, the included angle between the fifth connecting rod and the sixth connecting rod is gradually reduced; when the sliding piece slides reversely along the first direction, the included angle between the fifth connecting rod and the sixth connecting rod is gradually increased;

the first axial lead, the second axial lead, the third axial lead, the fourth axial lead, the fifth axial lead, the sixth axial lead, the seventh axial lead, the eighth axial lead, the ninth axial lead, the middle axial lead and the axial lead of the roller are parallel to each other;

2. The driving mechanism for opening and closing a double-mold opening and closing mold frame according to claim 1, wherein: the seventh axis line and the third axis line are coincident, and the eighth axis line and the sixth axis line are coincident.

3. The driving mechanism for opening and closing a double-mold opening and closing mold frame according to claim 1, wherein: the other end of the seventh connecting rod rotates around the second axial lead, or the other end of the seventh connecting rod rotates around the fifth axial lead.

4. The driving mechanism for opening and closing a double-mold opening and closing mold frame according to claim 1, wherein: and a limiting part for preventing the sliding part from continuously sliding along the die closing direction from the die closing position is further arranged on the frame.

5. The driving mechanism for opening and closing a double mold opening and closing mold frame according to claim 4, wherein: the limiting pieces are arranged on paths of continuous movement of at least one of the sliding pieces, the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the fifth connecting rod, the sixth connecting rod, the first mould shell and the second mould shell along the mould closing direction in a one-to-one correspondence manner;

6. The driving mechanism for opening and closing a double-mold opening and closing mold frame according to claim 1, wherein: the elastic component is used for providing elastic restoring force for driving the first die shell and the second die shell to be locked elastically.