CN110053240B - Locking mechanism and blow molding die carrier device - Google Patents
Locking mechanism and blow molding die carrier device Download PDFInfo
- Publication number
- CN110053240B CN110053240B CN201910123876.8A CN201910123876A CN110053240B CN 110053240 B CN110053240 B CN 110053240B CN 201910123876 A CN201910123876 A CN 201910123876A CN 110053240 B CN110053240 B CN 110053240B
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- assembly
- locking mechanism
- locking
- cylinder
- shaft
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- 238000000071 blow moulding Methods 0.000 title abstract description 14
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 239000002991 molded plastic Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- B29C49/0031—Making articles having hollow walls
-
- 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
- B29C49/48—Moulds
-
- 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
-
- 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
- B29C2049/566—Locking means
-
- 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
- B29C2049/566—Locking means
- B29C2049/5661—Mechanical
- B29C2049/5664—Translating locking pin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2022/00—Hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of blow molding equipment, and discloses a locking mechanism which comprises a locking shaft assembly, wherein the locking shaft assembly comprises a long shaft and a short shaft, and an upper groove and a lower groove which are axially arranged at intervals are arranged on the long shaft; the locking mechanism further comprises a fixing assembly, the fixing assembly comprises a fixing block, a sliding assembly and a roller, the fixing block is provided with a containing hole, the sliding assembly is slidably arranged in the containing hole, the roller is rotatably fixed at one end of the sliding assembly, and the swing arm assembly can drive the locking shaft assembly to move so that the roller can be selectively clamped in the upper groove or the lower groove. The invention also discloses a blow molding die carrier device. According to the locking mechanism provided by the invention, the left die frame and the right die frame can be kept in an open or closed state by arranging the fixing component matched with the upper groove and the lower groove, so that the working reliability is improved, the generation of impact and noise is avoided, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of blow molding equipment, in particular to a locking mechanism and a blow molding die carrier device.
Background
The main function of the blow molding apparatus is to mold plastic blanks into plastic bottles using a mold mounted on a blow mold carrier device. The blow molding frame device generally comprises a left frame, a right frame, a swing arm assembly, a locking mechanism and the like, wherein the swing arm assembly can drive the left frame and the right frame to be opened or closed, so that plastic blanks can be smoothly put into a mold, and molded plastic bottles can be smoothly taken out of the mold.
Fig. 1 is a locking mechanism in the prior art, which adopts a slot structure to limit the upper and lower positioning points of a locking stroke, and comprises a swing arm assembly 200 mounted on a right die frame 600 and a locking shaft assembly 100 mounted on the right die frame 600 in a vertically sliding manner relative to the right die frame 600, wherein a roller assembly 300 is mounted on one side of the swing arm assembly 200, a connecting piece 700 is fixed on the lower part of a locking shaft of the locking shaft assembly 100, a needle roller 302 of the roller assembly 300 is arranged in a square groove of the connecting piece 700, during operation, the locking mechanism rotates along with a rotating frame, when a first roller 301 of the roller assembly 300 moves to a locking guide rail (not shown in the figure), the first roller 301 rolls along the track of the locking guide rail and lifts, and simultaneously, the needle roller 302 drives the connecting piece 700 and the locking shaft assembly 100 to lift, when a bolt 102 of the locking shaft assembly 100 lifts to a jack 501 inserted into a left die frame 500 (at this time, the left die frame 500 and the right die frame 600 are in a closed state), and the left die frame 500 and the right die frame 600 are locked; when the latch 102 of the locking shaft assembly 100 is lowered to withdraw from the insertion hole 501 of the left mold frame 500, the left and right mold frames 500 and 600 are opened. Since the upper portion of the locking shaft assembly 100 is sleeved with the reset spring 900, the lower end of the reset spring abuts against the right die carrier 600, and the upper end of the reset spring abuts against the flange at the top end of the locking shaft, in order to prevent the locking shaft assembly 100 from being jacked up upwards by the reset spring 900 against the gravity before the left die carrier 500 and the right die carrier 600 are not folded, so that the subsequent die carrier locking cannot be performed, the locking shaft of the locking shaft assembly 100 is required to be provided with a horizontal lock nostril 101, and a locking pin 400 capable of being inserted into the lock nostril 101 is arranged, when the locking shaft assembly 100 is driven to be lowered in place by the first roller 301, the locking pin 400 is inserted into the lock nostril 101 of the locking shaft assembly 100 under the action of the spring 800, the locking shaft assembly 100 is prevented from being jacked up by the spring 800 when the die carrier is in an opened state, and the stability and the reliability of production are ensured.
However, the locking mechanism has the following defects: 1. when the locking pin 400 is inserted into the lock nostril 101 of the locking shaft assembly 100 under the elastic force of the spring 800, a strong impact occurs and a large noise is generated; 2. when the left mold frame 500 and the right mold frame 600 are folded, noise is generated by the impact between the left mold frame 500 and the locking pin 400, and the impact is to make the locking pin 400 withdraw from the lock nostril 101, so that the locking shaft assembly 100 is ensured to ascend to realize locking, and the noise cannot be eliminated; 3. when the left die frame 500 is impacted by the locking pin 400 during die assembly, the spring 800 is subjected to rigid impact, and when the cycle times are too large, fatigue damage occurs to the spring 800, so that the locking mechanism is invalid, the reliability of the locking mechanism is reduced, and the service life is shortened.
Disclosure of Invention
Based on the above, the present invention aims to provide a locking mechanism and a blow molding frame device, so as to solve the technical problems of large impact strength, large noise, low reliability, short service life and the like of the locking mechanism in the existing blow molding frame device.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The locking mechanism comprises a locking shaft assembly connected with the swing arm assembly, wherein the locking shaft assembly comprises a long shaft and a short shaft which are connected, the long shaft is slidably arranged in a jack of a right die carrier in a penetrating manner, the short shaft can be inserted into a jack of a left die carrier, and an upper groove and a lower groove which are arranged at intervals along the axial direction of the long shaft are arranged on the long shaft;
The locking mechanism further comprises a fixing assembly, the fixing assembly comprises a fixing block, a sliding assembly and a roller, the fixing block is provided with a containing hole, the depth direction of the containing hole is perpendicular to the axial direction of the long shaft, the sliding assembly is slidably arranged in the containing hole, the roller is rotatably fixed at one end of the sliding assembly, and the swing arm assembly can drive the locking shaft assembly to move so that the sliding assembly slides in the containing hole, so that the roller can be selectively clamped in the upper groove or the lower groove.
Further, the center-to-center spacing between the upper groove and the lower groove is equal to the locking stroke.
Further, the sliding assembly comprises a sleeve and an elastic piece, the sleeve comprises a supporting portion and a cylinder body, the roller is rotatably fixed on the supporting portion through a pin shaft, one end of the elastic piece is arranged in the cylinder body in a penetrating mode and is abutted to the bottom of the cylinder body, and the other end of the elastic piece is abutted to the fixing block.
Further, the fixing assembly further comprises a supporting cylinder, the supporting cylinder is clamped in the accommodating hole and is arranged at intervals with the sleeve, and the other end of the elastic piece penetrates through the supporting cylinder to be abutted against the fixing block.
Further, the cross section of the outer contour of the supporting cylinder is polygonal.
Further, the fixing assembly further comprises a guide cylinder, the guide cylinder is fixed in the accommodating hole, the sleeve is arranged in the guide cylinder in a penetrating mode, and the sleeve can slide along the inner wall of the guide cylinder.
Further, a first flange is arranged on the outer wall of the sleeve barrel and can be clamped with the end face of the guide barrel.
Further, the sliding assembly further comprises a gasket, the gasket is clamped in the accommodating hole and located between the supporting cylinder and the guiding cylinder, and the first flange can slide along the inner wall of the gasket.
Further, the fixed block comprises a fixed block and a sealing plate, the accommodating hole is formed in the fixed block, the accommodating hole penetrates through the fixed block, the sealing plate is fixed on the fixed block, and the other end of the elastic piece is in butt joint with the sealing plate.
The invention also provides a blow molding frame device which comprises the locking mechanism.
The beneficial effects of the invention are as follows:
According to the locking mechanism provided by the invention, the upper groove and the lower groove are formed in the long shaft of the locking shaft assembly, the fixed assembly comprising the fixed block, the sliding assembly and the roller is arranged, the roller can selectively roll into the upper groove or the lower groove through the ascending or descending of the locking shaft assembly, and the roller is stably kept in the upper groove or the lower groove under the action of the sliding assembly, so that the locking shaft assembly is prevented from unexpectedly ascending or descending, the left die frame and the right die frame can keep an opened or closed state, the working stability and the working reliability of the locking mechanism are greatly improved, meanwhile, the roller slowly rolls into the upper groove or the lower groove in a rolling manner, so that the locking mechanism is prevented from being subjected to rigid impact, the impact with high strength and the noise are avoided, and the service life of the locking mechanism is prolonged.
According to the blow molding die frame device, the left die frame and the right die frame are controlled by the locking mechanism, so that the left die frame and the right die frame can be kept in an opened or closed state, the working reliability is high, the plastic bottle blank can be smoothly placed into the die, and the molded plastic bottle can be smoothly taken out of the die.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram of a prior art locking mechanism;
FIG. 2 is a schematic view of a blow mold frame apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a locking mechanism according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a locking mechanism provided by an embodiment of the present invention;
Fig. 5 is an exploded view of a locking mechanism according to an embodiment of the present invention.
In the figure:
The prior art comprises the following steps:
A 100-lock shaft assembly; 101-locking nostrils; 102-a bolt; 200-a swing arm assembly; 300-a roller assembly; 301-a first roller; 302-a needle roller; 400-locking pin; 500-left die carrier; 501-jack; 600-right die carrier; 700-connecting piece; 800-spring; 900-return spring.
The invention comprises the following steps:
10-right mould frame; 20-left die carrier; 30-a swing arm assembly;
1-locking the shaft assembly; 11-major axis; 111-upper groove; 112-a lower groove; 12-short axis;
2-fixing the assembly; 21-a fixed block assembly; 211-fixing blocks; 212-closing plates; 22-a sliding assembly; 221-sleeve; 222-an elastic member; 23-rolling wheels; 24-supporting a cylinder; 25-guiding cylinder; 26-washers.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 2-4, the present embodiment provides a locking mechanism, which comprises a locking shaft assembly 1 connected with a swing arm assembly 30, wherein the locking shaft assembly 1 comprises a long shaft 11 and a short shaft 12 which are connected, the long shaft 11 is slidably arranged in a jack of a right die carrier 10, the short shaft 12 can be inserted into a jack of a left die carrier 20, and an upper groove 111 and a lower groove 112 which are arranged at intervals along the axial direction of the long shaft 11 are arranged on the long shaft 11; the locking mechanism further comprises a fixing assembly 2, the fixing assembly 2 comprises a fixing block assembly 21, a sliding assembly 22 and a roller 23, the fixing block assembly 21 is provided with a containing hole, the depth direction of the containing hole is perpendicular to the axial direction of the long shaft 11, the sliding assembly 22 is slidably arranged in the containing hole, the roller 23 is rotatably fixed at one end of the sliding assembly 22, and the swing arm assembly 30 can drive the locking shaft assembly 1 to move so that the sliding assembly 22 slides in the containing hole, so that the roller 23 can be selectively clamped in the upper groove 111 or the lower groove 112.
When the mold needs to be opened, the swing arm assembly 30 drives the locking shaft assembly 1 to move downwards, so that the short shaft 12 is separated from the jack of the left mold frame 20, the left mold frame 20 and the right mold frame 10 are opened, meanwhile, the roller 23 rolls into the upper groove 111 from the lower groove 112, and the roller 23 is stably kept in the upper groove 111 under the action of the sliding assembly 22, so that the left mold frame 20 and the right mold frame 10 are kept in an open state; when the mold needs to be closed, the swing arm assembly 30 drives the locking shaft assembly 1 to move upwards, so that the short shaft 12 is inserted into the insertion hole of the left mold frame 20, the left mold frame 20 and the right mold frame 10 are closed, meanwhile, the roller 23 rolls into the lower groove 112 from the upper groove 111, and the roller 23 is stably kept in the lower groove 112 under the action of the sliding assembly 22, so that the left mold frame 20 and the right mold frame 10 are kept in a closed state.
The locking mechanism provided in this embodiment, by providing the upper groove 111 and the lower groove 112 on the long shaft 11 of the locking shaft assembly 1, and by providing the fixing assembly 2 including the fixing block assembly 21, the sliding assembly 22 and the roller 23, the roller 23 is selectively rolled into the upper groove 111 or the lower groove 112 by the ascending or descending of the locking shaft assembly 1, and the roller 23 is stably maintained in the upper groove 111 or the lower groove 112 by the sliding assembly 22, so as to prevent the locking shaft assembly 1 from undesirably ascending or descending, thereby enabling the left mold frame 20 and the right mold frame 10 to maintain the opened or closed state, greatly improving the stability and reliability of the locking mechanism operation, and simultaneously, since the roller 23 is slowly rolled into the upper groove 111 or the lower groove 112 by rolling, the locking mechanism is prevented from being rigidly impacted, and the impact with a large intensity and the noise are prevented from being generated, and the service life of the locking mechanism is prolonged.
Specifically, the center-to-center spacing between the upper groove 111 and the lower groove 112 is equal to the locking stroke. In order to enable the stub shaft 12 to be fitted with the insertion hole accurately and reliably, the length of the stub shaft 12 inserted into the insertion hole is prevented from being excessively long or short, so that the center-to-center distance between the upper groove 111 and the lower groove 112 is set equal to the locking stroke.
As shown in fig. 4 and 5, in the present embodiment, the sliding assembly 22 includes a sleeve 221 and an elastic member 222, the sleeve 221 includes a supporting portion and a cylinder, the roller 23 is rotatably fixed on the supporting portion through a pin, one end of the elastic member 222 is disposed in the cylinder in a penetrating manner and abuts against the bottom of the cylinder, and the other end of the elastic member 222 abuts against the fixed block assembly 21. In this embodiment, the elastic member 222 is a spring, and the roller 23 is a bearing. The bearing can be stably clamped in the upper groove 111 or the lower groove 112 under the action of spring force, and when the bearing passes through the bulge between the upper groove 111 and the lower groove 112 due to the rising or falling of the locking shaft assembly 1, the bearing drives the sleeve 221 to move away from the locking shaft assembly 1, so that the spring in the sleeve 221 is further compressed, and the bearing rolls into the lower groove 112 from the upper groove 111 or rolls into the upper groove 111 from the lower groove 112.
The fixing assembly 2 provided in this embodiment further includes a supporting cylinder 24, which is clamped in the accommodating hole and is disposed at intervals with the sleeve 221, and the other end of the elastic member 222 passes through the supporting cylinder 24 to be abutted against the fixing block assembly 21. The supporting cylinder 24 can play a role in supporting the elastic piece 222, so that the elastic piece 222 is prevented from being compressed to bend, and the stability and the reliability of the operation of the elastic piece 222 are ensured; the gap between the support cylinder 24 and the sleeve 221 allows the sleeve 221 to slide away from the locking shaft assembly 1, thereby allowing the elastic member 222 to be compressed; in addition, the cross section of the outer contour of the support cylinder 24 is polygonal, specifically, the outer contour of the support cylinder 24 is square in this embodiment, and the polygonal outer contour can effectively prevent the support cylinder 24 from rotating in the accommodation hole. Of course, the cross-section of the outer contour of the support cylinder 24 is not limited to square, but may be hexagonal in other embodiments, etc.
Further, the fixing assembly 2 further includes a guide cylinder 25 fixed in the receiving hole, the sleeve 221 is inserted into the guide cylinder 25, and the sleeve 221 can slide along an inner wall of the guide cylinder 25. The guide cylinder 25 may serve as a guide for the sleeve 221, so that the sleeve 221 slides smoothly within the guide cylinder 25, thereby enabling the roller 23 to be accurately engaged with the upper groove 111 and the lower groove 112.
Specifically, the outer wall of the sleeve 221 barrel is provided with a first flange, the first flange can be clamped with the end face of the guide barrel 25, the sleeve 221 is limited through the cooperation of the first flange and the end face of the guide barrel 25, and the roller 23 is prevented from being excessively tightly clamped with the upper groove 111 or the lower groove 112 under the action of elastic force of the elastic piece 222 so as not to easily roll out from the upper groove 111 or the lower groove 112.
In this embodiment, the accommodating hole is a stepped hole, a second flange is provided on the outer wall of the guide cylinder 25, and the second flange is clamped to the step of the stepped hole, so that the guide cylinder 25 can be prevented from sliding out of the accommodating hole through the cooperation of the second flange and the step of the stepped hole, thereby stably fixing the guide cylinder 25 in the accommodating hole.
Further, the sliding assembly 22 further includes a gasket 26 disposed in the receiving hole and between the supporting cylinder 24 and the guiding cylinder 25, and the first flange is capable of sliding along an inner wall of the gasket 26. The gasket 26 plays a role of guiding the first flange of the sleeve 221, and the cylinder body and the first flange of the sleeve 221 can smoothly slide by the cooperation of the guide cylinder 25 and the gasket 26, so that the sleeve 221 is prevented from shaking or skewing. In this embodiment, the cross section of the outer contour of the gasket 26 is polygonal and square, which is the same as the cross section of the outer contour of the supporting cylinder 24, so that the gasket 26 is effectively prevented from rotating.
The fixing block assembly 21 provided in this embodiment includes a fixing block 211 and a sealing plate 212, the accommodating hole is formed on the fixing block 211, and the accommodating hole penetrates through the fixing block 211, the sealing plate 212 is fixed on the fixing block 211, and the other end of the elastic member 222 is abutted against the sealing plate 212. The fixing block assembly 21 is designed to have a structure comprising two parts of the fixing block 211 and the sealing plate 212, so that the fixing assembly 2 is conveniently installed in the accommodating hole, the installation efficiency is improved, and the fixing assembly 2 is conveniently repaired and maintained.
The embodiment also provides a blow molding frame device, which comprises the locking mechanism. According to the blow molding die frame device provided by the embodiment, the left die frame 20 and the right die frame 10 are controlled by utilizing the locking mechanism, so that the left die frame 20 and the right die frame 10 can be kept in an opened or closed state, the working reliability is high, the plastic blank can be ensured to be smoothly put into the die, and the molded plastic bottle can be smoothly taken out from the die.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (9)
1. The locking mechanism comprises a locking shaft assembly (1) connected with a swing arm assembly (30), wherein the locking shaft assembly (1) comprises a long shaft (11) and a short shaft (12) which are connected, the long shaft (11) is slidably arranged in a jack of a right die carrier (10) in a penetrating manner, the short shaft (12) can be inserted into a jack of a left die carrier (20) and is characterized in that,
The long shaft (11) is provided with an upper groove (111) and a lower groove (112) which are arranged at intervals along the axial direction of the long shaft;
The locking mechanism further comprises a fixing assembly (2), the fixing assembly (2) comprises a fixing block assembly (21), a sliding assembly (22) and a roller (23), a containing hole is formed in the fixing block assembly (21), the depth direction of the containing hole is perpendicular to the axial direction of the long shaft (11), the sliding assembly (22) is slidably arranged in the containing hole, the roller (23) is rotatably fixed at one end of the sliding assembly (22), and the swing arm assembly (30) can drive the locking shaft assembly (1) to move so that the sliding assembly (22) slides in the containing hole, so that the roller (23) can be selectively clamped in the upper groove (111) or the lower groove (112);
The center-to-center distance between the upper groove (111) and the lower groove (112) is equal to the locking stroke.
2. The locking mechanism according to claim 1, wherein the sliding assembly (22) comprises a sleeve (221) and an elastic member (222), the sleeve (221) comprises a supporting portion and a cylinder, the roller (23) is rotatably fixed on the supporting portion through a pin shaft, one end of the elastic member (222) is arranged in the cylinder in a penetrating manner and abuts against the bottom of the cylinder, and the other end of the elastic member (222) abuts against the fixed block assembly (21).
3. The locking mechanism according to claim 2, wherein the fixing assembly (2) further comprises a supporting cylinder (24) which is clamped in the accommodating hole and is arranged at intervals with the sleeve (221), and the other end of the elastic piece (222) passes through the supporting cylinder (24) to be abutted against the fixing block assembly (21).
4. A locking mechanism according to claim 3, wherein the cross section of the outer contour of the support cylinder (24) is polygonal.
5. A locking mechanism according to claim 3, wherein the fixing assembly (2) further comprises a guide cylinder (25) fixed in the receiving hole, the sleeve (221) is penetrated in the guide cylinder (25), and the sleeve (221) is slidable along an inner wall of the guide cylinder (25).
6. The locking mechanism according to claim 5, characterized in that the outer wall of the sleeve (221) cylinder is provided with a first flange, which can be snapped into engagement with the end face of the guide cylinder (25).
7. The locking mechanism according to claim 6, wherein the sliding assembly (22) further comprises a gasket (26) which is clamped in the receiving hole and is located between the support cylinder (24) and the guide cylinder (25), the first flange being slidable along an inner wall of the gasket (26).
8. The locking mechanism according to claim 2, wherein the fixed block assembly (21) includes a fixed block (211) and a sealing plate (212), the accommodating hole is opened on the fixed block (211), and the accommodating hole penetrates through the fixed block (211), the sealing plate (212) is fixed on the fixed block (211), and the other end of the elastic member (222) is abutted against the sealing plate (212).
9. A blow mould frame device comprising a locking mechanism as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123876.8A CN110053240B (en) | 2019-02-19 | 2019-02-19 | Locking mechanism and blow molding die carrier device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910123876.8A CN110053240B (en) | 2019-02-19 | 2019-02-19 | Locking mechanism and blow molding die carrier device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110053240A CN110053240A (en) | 2019-07-26 |
| CN110053240B true CN110053240B (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910123876.8A Active CN110053240B (en) | 2019-02-19 | 2019-02-19 | Locking mechanism and blow molding die carrier device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110053240B (en) |
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| EP2942179A1 (en) * | 2014-05-09 | 2015-11-11 | SMI S.p.A. | Machine for the blow-molding or stretch blow-molding of bottles in a polymeric material |
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