CN113370506A - Full-connecting-rod bottom die lifting mechanism for single die opening of bottle blowing machine - Google Patents
Full-connecting-rod bottom die lifting mechanism for single die opening of bottle blowing machine Download PDFInfo
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- CN113370506A CN113370506A CN202110598183.1A CN202110598183A CN113370506A CN 113370506 A CN113370506 A CN 113370506A CN 202110598183 A CN202110598183 A CN 202110598183A CN 113370506 A CN113370506 A CN 113370506A
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- connecting rod
- bottom die
- die
- support
- sliding block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a full-connecting-rod type bottom die lifting mechanism for single die opening of a bottle blowing machine, which comprises a die carrier support, a bottom die support, a first sliding block, a second sliding block, a connecting rod mechanism and a first connecting rod, wherein the bottom die support is connected to the die carrier support in a swinging mode, the first sliding block is arranged on the bottom die support in a lifting mode, the second sliding block is arranged on the bottom die support in a sliding mode along a first direction, the connecting rod mechanism is connected between the second sliding block and the first sliding block, and the first connecting rod is connected with the die carrier support and the second sliding block at two ends in a rotating mode; the connecting rod mechanism comprises a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod, one end of the second connecting rod is rotatably connected to the second sliding block, one end of the third connecting rod is rotatably connected to the other end of the second connecting rod, one end of the fourth connecting rod is rotatably connected to the bottom die support, the two ends of the fifth connecting rod are respectively rotatably connected with the other ends of the first sliding block and the fourth connecting rod, and the third connecting rod is fixedly connected to the fourth connecting rod; the rotation planes of the second connecting rod, the third connecting rod, the fourth connecting rod and the fifth connecting rod are parallel to the first plane. The bottom die lifting mechanism can accurately control the motion law of the bottom die.
Description
Technical Field
The invention relates to the technical field of bottle blowing, in particular to a full-connecting-rod bottom die lifting mechanism for single die opening of a bottle blowing machine.
Background
The bottle blowing machine is a key device for producing various plastic bottles for liquid packaging. The bottle blowing machine has strict requirements on all procedures, has high mutual matching requirements, and has strict requirements on synchronous control of bottom die swinging and lifting movement of a single die.
In the prior art, the linkage of bottom die swinging and lifting motion is generally realized through a cylindrical space cam mechanism. The mechanism has the advantages that: the mechanism is simple, and the moving parts are few. The mechanism has the following defects: 1) the cam flange or groove profile of the cylindrical space cam has high requirements on the design and processing precision, the installation and positioning difficulty of the cam is high, and a rotor is easy to clamp; 2) the rotor and the cylindrical surface space cam profile contact surface are easy to form point contact, the pressure stress is large, and the rotor is easy to damage or the cam profile surface is easy to wear; 3) due to the space size limitation, the cam pressure angle of the cylindrical space is large, and the rotor is easy to damage or the cam profile is easy to wear.
Disclosure of Invention
The invention aims to provide a full-connecting-rod bottom die lifting mechanism for single die opening of a bottle blowing machine, which can accurately control the motion law of a bottom die, has small dynamic load, can effectively reduce the vibration and impact of the mechanism, reduce the abrasion of parts, enhance the motion stability and reliability of the bottle blowing machine and improve the high-speed performance of the whole machine.
In order to achieve the purpose, the invention adopts the technical scheme that:
a full-connecting-rod type bottom die lifting mechanism for single die opening of a bottle blowing machine comprises a die carrier support, a bottom die support, a first sliding block, a second sliding block, a connecting rod mechanism and a first connecting rod, wherein the bottom die support can swing around the axial lead of a first shaft and is connected to the die carrier support;
the connecting rod mechanism comprises a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod, one end of the second connecting rod is rotatably connected to the second sliding block, one end of the third connecting rod is rotatably connected to the other end of the second connecting rod, one end of the fourth connecting rod is rotatably connected to the bottom die support, the two ends of the fifth connecting rod are respectively rotatably connected with the other ends of the first sliding block and the fourth connecting rod, and the third connecting rod is fixedly connected to the fourth connecting rod;
the rotation planes of the second connecting rod, the third connecting rod, the fourth connecting rod and the fifth connecting rod are parallel to a first plane and are parallel to the first direction;
the rotating shaft axes at the two ends of the first connecting rod are parallel to each other, parallel to the first plane and perpendicular to the first direction.
Preferably, the first slider has a raised position and a lowered position,
when the bottom die support swings forwards relative to the die frame support, the first connecting rod is driven to rotate forwards relative to the die frame support, the second sliding block slides forwards along the first direction, and the first sliding block is driven to descend to a descending position through the connecting rod mechanism;
when the bottom die support swings reversely relative to the die carrier support, the first connecting rod is driven to rotate reversely relative to the die carrier support, the second sliding block slides reversely in the first direction, and the first sliding block is driven to ascend to the ascending position through the connecting rod mechanism.
More preferably, when the bottom die support swings in the forward direction relative to the die frame support, the third connecting rod and the fourth connecting rod rotate in the forward direction relative to the bottom die support as a whole; when the bottom die support swings reversely relative to the die frame support, the third connecting rod and the fourth connecting rod integrally rotate reversely relative to the bottom die support.
Preferably, the fourth connecting rod is fixedly connected with the lower end of the third connecting rod through the lower end of the fourth connecting rod and is rotatably connected to the bottom die support, and the fourth connecting rod and the third connecting rod form an angle with each other.
Preferably, the bottom die support includes a first guide rail extending in a vertical direction, and the first slider is slidably disposed on the first guide rail.
Preferably, the bottom die support further includes a second guide rail extending in the horizontal direction, and the second slider is slidably disposed on the second guide rail.
More preferably, the lower end of the fourth link and the upper end of the fifth link are both located between the two ends of the second guide rail.
Preferably, the first slider and the first link are respectively disposed on two sides of the second slider perpendicular to the first direction.
Preferably, the bottom die support is driven to swing by an independent driving mechanism or a linkage mechanism linked with the movable side die.
Preferably, a bottom die is arranged on the first sliding block, a side die is arranged on the die frame support, one of the bottom die and the side die is provided with a wedge-shaped ring groove, and the other is provided with a wedge-shaped snap ring which is clamped into the wedge-shaped ring groove;
when the die is opened, the bottom die support swings until the wedge-shaped ring groove is completely separated from the wedge-shaped clamping ring, and the bottom die lifting mechanism controls the bottom die to generate a displacement in the vertical direction which is smaller than a gap between the wedge-shaped clamping ring and the wedge-shaped ring groove, so that an approximate rest period of the bottom die moving in the vertical direction is formed; after the bottom die support swings until the wedge-shaped ring groove is separated from the wedge-shaped clamping ring, the bottom die lifting mechanism controls the bottom die to descend in the vertical direction by a large displacement, so that the bottle taking motion of the bottle taking mechanism is not interfered with the bottom die;
during die assembly, along with the swinging of the bottom die support, the bottom die lifting mechanism controls the bottom die to ascend in the vertical direction by large displacement until the wedge-shaped clamping ring can enter the wedge-shaped annular groove; after the wedge-shaped clamping ring enters the wedge-shaped annular groove, the bottom die lifting mechanism controls the bottom die to generate displacement in the vertical direction, and the displacement is smaller than the gap between the wedge-shaped clamping ring and the wedge-shaped annular groove, so that an approximate rest period of the bottom die in the vertical direction is formed.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention relates to a full-connecting-rod bottom die lifting mechanism for single die opening of a bottle blowing machine, which drives a first sliding block to lift through the sliding of a second sliding block and the matching of a connecting rod mechanism in the swinging process of a bottom die support; because the rotating planes of the four connecting rods in the connecting rod mechanism are parallel to the first plane, the mounting and positioning difficulty is small; on the basis of vibration reduction and noise reduction and stable and reliable structure, the processing difficulty of parts is reduced, and the running speed of the whole machine can be increased.
Drawings
Fig. 1 is a first perspective view (mold-closed state) of a bottom mold lifting mechanism according to an embodiment of the present invention;
fig. 2 is a second perspective view (open state) of the bottom die lifting mechanism according to the embodiment of the present invention;
fig. 3 is a first front view (mold closed state and hidden mold frame support) of a bottom mold lifting mechanism according to an embodiment of the present invention;
fig. 4 is a second front view (opened state and hidden mold frame support) of the bottom mold lifting mechanism according to the embodiment of the present invention.
Wherein: 1. a mold frame support; 2. a first shaft; 3. a bottom die support; 31. a first guide rail; 32. a second guide rail; 33. connecting blocks; 4. a first slider; 5. a second slider; 6. a first link; 7. a second link; 8. a third link; 9. a fourth link; 10. a fifth link; 11. a second shaft.
Detailed Description
The technical solution of the present invention is further explained below with reference to the specific embodiments and the accompanying drawings.
Referring to fig. 1 to 4, the present embodiment provides a full link type bottom die lifting mechanism for single die opening of a bottle blowing machine, which includes a die carrier support 1, a bottom die support 3 connected to the die carrier support 1 in a swinging manner around an axial lead of a first shaft 2, a first slide block 4 arranged on the bottom die support 3 in a lifting manner, and a second slide block 5 arranged on the bottom die support 3 in a sliding manner along a first direction. The first shaft 2 extends in a vertical direction.
The movable side die and the fixed side die (not shown in the figure) are respectively arranged on the die carrier bracket 1, and the bottom die bracket 3 is driven by an independent driving mechanism or a linkage mechanism linked with the movable side die to swing. The first slide block 4 is used for mounting the bottom die, the sliding direction of the first slide block 4 extends along the vertical direction, and the sliding direction of the second slide block (i.e. the first direction) extends along the horizontal direction.
The bottom die lifting mechanism further comprises a connecting rod mechanism connected between the second sliding block 5 and the first sliding block 4, and a first connecting rod 6 with two ends respectively rotatably connected with the die carrier support 1 and the second sliding block 5.
The connecting rod mechanism comprises a second connecting rod 7 with one end rotatably connected to the second sliding block 5, a third connecting rod 8 with one end rotatably connected to the other end of the second connecting rod 7, a fourth connecting rod 9 with one end rotatably connected to the bottom die support 3, a fifth connecting rod 10 with two ends rotatably connected to the other ends of the first sliding block 4 and the fourth connecting rod 9 respectively, and the third connecting rod 8 is fixedly connected to the fourth connecting rod 9.
Referring to fig. 3-4, the fourth connecting rod 9 is fixedly connected to the lower end of the third connecting rod 8 through the lower end thereof and is rotatably connected to the bottom mold support 3, and the fourth connecting rod 9 and the third connecting rod 8 form an angle with each other, which is an acute angle. The upper end of a second connecting rod 7 is rotatably connected to the second sliding block 5, the lower end of the second connecting rod 7 is rotatably connected with the upper end of a third connecting rod 8, the upper end of a fifth connecting rod 10 is rotatably connected to the first sliding block 4, and the lower end of the fifth connecting rod 10 is rotatably connected with the upper end of a fourth connecting rod 9.
The lower end of the fourth link 9 and the upper end of the fifth link 10 are both located between the two ends of the second guide rail 32.
The rotation planes of the second link 7, the third link 8, the fourth link 9 and the fifth link 10 are all parallel to the first plane and parallel to the first direction. In this embodiment, the first plane is a vertical plane.
The rotation axes of the two ends of the first link 6 are parallel to each other, parallel to the first plane, and perpendicular to the first direction.
Referring to fig. 1, in the present embodiment, the bottom die support 3 includes a first rail 31 extending in a vertical direction, and the first slider 4 is slidably disposed on the first rail 31; the bottom die support 3 further comprises a second guide rail 32 extending in the horizontal direction, and the second slide 5 is slidably disposed on the second guide rail 32. The two second guide rails 32 are arranged at intervals along the up-down direction, and the second sliding block 5 is sleeved on the two second guide rails 32. The upper end of the bottom die support 3 is concavely arranged, the second guide rail 32 is connected to two sides of the notch through two ends of the second guide rail, the first guide rail 31, the first sliding block 4, the fifth connecting rod 10 and the fourth connecting rod 9 are sealed in the notch, and two ends of the second sliding block 5 are limited by two sides of the notch. By this arrangement, the components in the recess are protected.
Referring to fig. 1, the bottom mold support 3 is pivotally connected to the mold frame support 1 about the axis of the first shaft 2 by a connecting block 33 at the lower end thereof, and the first connecting rod 6 is pivotally connected to the mold frame support 1 about the axis of the second shaft 11. The first shaft 2 and the second shaft 11 each extend in a vertical direction, the first shaft 2 being located to the left of the second shaft 11.
Referring to fig. 1, the first link 6 extends in a horizontal direction, and the rotation axes of both ends thereof extend in a vertical direction. The first slide block 4 and the first connecting rod 6 are respectively arranged at two sides of the second slide block 5 perpendicular to the first direction, namely the first slide block 4 is positioned in the notch of the bottom die support 3, and the first connecting rod 6 is positioned outside the notch of the bottom die support 3.
The first slider 4 has a raised position (see fig. 1, 3) and a lowered position (see fig. 2, 4).
When the bottom die support 3 swings forwards (anticlockwise) relative to the die carrier support 1, the first connecting rod 6 is driven to rotate forwards (anticlockwise) relative to the die carrier support 1, so that the second sliding block 5 slides forwards along the first direction, the third connecting rod 8 and the fourth connecting rod 9 integrally rotate forwards (anticlockwise) relative to the bottom die support 3, and the first sliding block 4 is driven to descend to the descending position through the connecting rod mechanism;
when the bottom die support 3 swings reversely (clockwise) relative to the die support 1, the first connecting rod 6 is driven to rotate reversely (clockwise) relative to the die support 1, so that the second sliding block 5 slides reversely along the first direction, the third connecting rod 8 and the fourth connecting rod 9 integrally rotate reversely (clockwise) relative to the bottom die support 3, and the first sliding block 4 is driven to ascend to a rising position through the connecting rod mechanism.
A bottom die (not shown in the figure) is arranged on the first sliding block 4, and side dies (not shown in the figure, including a movable side die and a fixed side die) are arranged on the die frame support 1. One of the bottom die and the side die is provided with a wedge-shaped ring groove, and the other one is provided with a wedge-shaped snap ring which is clamped into the wedge-shaped ring groove;
when the die is opened, the bottom die support 3 swings until the wedge-shaped ring groove and the wedge-shaped clamping ring are completely separated, the bottom die lifting mechanism controls the bottom die to generate displacement in the vertical direction, which is smaller than the gap between the wedge-shaped clamping ring and the wedge-shaped ring groove, so that an approximate rest period of the bottom die moving in the vertical direction is formed; after the bottom die support 3 swings until the wedge-shaped ring groove is separated from the wedge-shaped clamping ring, the bottom die lifting mechanism controls the bottom die to descend in the vertical direction for a large displacement, so that the bottle taking motion of the bottle taking mechanism is not interfered with the bottom die;
during die assembly, along with the swing of the bottom die support 3, the bottom die lifting mechanism controls the bottom die to ascend in the vertical direction and move greatly until the wedge-shaped clamping ring can enter the wedge-shaped annular groove; after the wedge-shaped clamping ring enters the wedge-shaped ring groove, the bottom die lifting mechanism controls the bottom die to generate displacement in the vertical direction which is smaller than the gap between the wedge-shaped clamping ring and the wedge-shaped ring groove, and an approximate rest period of the bottom die moving in the vertical direction is formed.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a full connecting rod formula die block elevating system for single mould that opens of bottle blowing machine, includes the die carrier support, can connect in around the axial lead swing of primary shaft die carrier, liftable locate on the die carrier support first slider on the die carrier support, its characterized in that: the bottom die lifting mechanism further comprises a second sliding block which can slide along a first direction and is arranged on the bottom die support, a connecting rod mechanism connected between the second sliding block and the first sliding block, and a first connecting rod of which two ends are respectively in rotating connection with the die carrier support and the second sliding block;
the connecting rod mechanism comprises a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod, one end of the second connecting rod is rotatably connected to the second sliding block, one end of the third connecting rod is rotatably connected to the other end of the second connecting rod, one end of the fourth connecting rod is rotatably connected to the bottom die support, the two ends of the fifth connecting rod are respectively rotatably connected with the other ends of the first sliding block and the fourth connecting rod, and the third connecting rod is fixedly connected to the fourth connecting rod;
the rotation planes of the second connecting rod, the third connecting rod, the fourth connecting rod and the fifth connecting rod are parallel to a first plane and are parallel to the first direction;
the rotating shaft axes at the two ends of the first connecting rod are parallel to each other, parallel to the first plane and perpendicular to the first direction.
2. The full-link bottom die lifting mechanism for the single-die opening of the bottle blowing machine according to claim 1, which is characterized in that: the first slide has a raised position and a lowered position,
when the bottom die support swings forwards relative to the die frame support, the first connecting rod is driven to rotate forwards relative to the die frame support, the second sliding block slides forwards along the first direction, and the first sliding block is driven to descend to a descending position through the connecting rod mechanism;
when the bottom die support swings reversely relative to the die carrier support, the first connecting rod is driven to rotate reversely relative to the die carrier support, the second sliding block slides reversely in the first direction, and the first sliding block is driven to ascend to the ascending position through the connecting rod mechanism.
3. The full-link bottom die lifting mechanism for the single-die opening of the bottle blowing machine according to claim 2, which is characterized in that: when the bottom die support swings forwards relative to the die frame support, the third connecting rod and the fourth connecting rod integrally rotate forwards relative to the bottom die support; when the bottom die support swings reversely relative to the die frame support, the third connecting rod and the fourth connecting rod integrally rotate reversely relative to the bottom die support.
4. The full-link bottom die lifting mechanism for the single-die opening of the bottle blowing machine according to claim 1, which is characterized in that: the fourth connecting rod is fixedly connected with the lower end of the third connecting rod through the lower end of the fourth connecting rod and is rotatably connected to the bottom die support, and the fourth connecting rod and the third connecting rod form an angle with each other.
5. The full-link bottom die lifting mechanism for the single-die opening of the bottle blowing machine according to claim 1, which is characterized in that: the die block support comprises a first guide rail extending in the vertical direction, and the first sliding block is arranged on the first guide rail in a sliding mode.
6. The full-link bottom die lifting mechanism for the single-die opening of the bottle blowing machine according to claim 1, which is characterized in that: the bottom die support further comprises a second guide rail extending in the horizontal direction, and the second sliding block is arranged on the second guide rail in a sliding mode.
7. The full-link bottom die lifting mechanism for the single-die opening of the bottle blowing machine according to claim 6, which is characterized in that: the lower end of the fourth connecting rod and the upper end of the fifth connecting rod are both positioned between the two ends of the second guide rail.
8. The full-link bottom die lifting mechanism for the single-die opening of the bottle blowing machine according to claim 1, which is characterized in that: the first sliding block and the first connecting rod are respectively arranged on two sides of the second sliding block, which are perpendicular to the first direction.
9. The full-link bottom die lifting mechanism for the single-die opening of the bottle blowing machine according to claim 1, which is characterized in that: the bottom die support is driven to swing by an independent driving mechanism or a linkage mechanism linked with the movable side die.
10. The full-link bottom die lifting mechanism for the single-die opening of the bottle blowing machine according to claim 1, which is characterized in that: a bottom die is arranged on the first sliding block, side dies are arranged on the die frame support, one of the bottom die and the side dies is provided with a wedge-shaped ring groove, and the other one of the bottom die and the side dies is provided with a wedge-shaped snap ring which is clamped into the wedge-shaped ring groove;
when the die is opened, the bottom die support swings until the wedge-shaped ring groove is completely separated from the wedge-shaped clamping ring, and the bottom die lifting mechanism controls the bottom die to generate a displacement in the vertical direction which is smaller than a gap between the wedge-shaped clamping ring and the wedge-shaped ring groove, so that an approximate rest period of the bottom die moving in the vertical direction is formed; after the bottom die support swings until the wedge-shaped ring groove is separated from the wedge-shaped clamping ring, the bottom die lifting mechanism controls the bottom die to descend in the vertical direction by a large displacement, so that the bottle taking motion of the bottle taking mechanism is not interfered with the bottom die;
during die assembly, along with the swinging of the bottom die support, the bottom die lifting mechanism controls the bottom die to ascend in the vertical direction by large displacement until the wedge-shaped clamping ring can enter the wedge-shaped annular groove; after the wedge-shaped clamping ring enters the wedge-shaped annular groove, the bottom die lifting mechanism controls the bottom die to generate displacement in the vertical direction, and the displacement is smaller than the gap between the wedge-shaped clamping ring and the wedge-shaped annular groove, so that an approximate rest period of the bottom die in the vertical direction is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598183.1A CN113370506A (en) | 2021-05-31 | 2021-05-31 | Full-connecting-rod bottom die lifting mechanism for single die opening of bottle blowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598183.1A CN113370506A (en) | 2021-05-31 | 2021-05-31 | Full-connecting-rod bottom die lifting mechanism for single die opening of bottle blowing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113370506A true CN113370506A (en) | 2021-09-10 |
Family
ID=77574970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110598183.1A Pending CN113370506A (en) | 2021-05-31 | 2021-05-31 | Full-connecting-rod bottom die lifting mechanism for single die opening of bottle blowing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113370506A (en) |
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2021
- 2021-05-31 CN CN202110598183.1A patent/CN113370506A/en active Pending
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