CN110524832B - Mechanical locking device and mold clamping mechanism with same - Google Patents
Mechanical locking device and mold clamping mechanism with same Download PDFInfo
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- CN110524832B CN110524832B CN201910810613.4A CN201910810613A CN110524832B CN 110524832 B CN110524832 B CN 110524832B CN 201910810613 A CN201910810613 A CN 201910810613A CN 110524832 B CN110524832 B CN 110524832B
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- connecting rod
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- locking device
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- mechanical locking
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- 230000007246 mechanism Effects 0.000 title claims abstract description 83
- 230000009471 action Effects 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 9
- 238000004512 die casting Methods 0.000 claims 1
- 230000003028 elevating effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/84—Safety devices
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Abstract
The invention provides a mechanical locking device and a mold clamping mechanism with the same. Wherein, mechanical locking device locks the safety lever of the mechanism of pair mould, include: a frame; the connecting rod mechanism is connected with the rack and comprises a first connecting rod; the adjusting structure is connected with the door body of the die clamping mechanism and is connected with the connecting rod mechanism so as to enable the first connecting rod to lift; the lock body assembly comprises a lock body and a lock cylinder, wherein the lock body is provided with a through hole and a mounting hole for the safety rod to pass through; the lock body assembly is provided with a locking state that the lock core extends into the through hole to be limited and stopped by the safety rod and an unlocking state that the lock core is withdrawn out of the through hole; when the door body is in a closed state, the lock body assembly is in an unlocked state; when the door body is pulled open, the door body drives the adjusting structure to move, the first connecting rod is separated from the lock cylinder, and the lock body assembly is switched from the unlocking state to the locking state. The invention solves the problem of poor safety of the die clamping mechanism in the prior art.
Description
Technical Field
The invention relates to the technical field of mold clamping, in particular to a mechanical locking device and a mold clamping mechanism with the same.
Background
At present, in the use process of the mold clamping mechanism, if a door body is accidentally pulled open by a worker, the mold clamping mechanism still continues to operate, the phenomenon that the worker is injured by clamping the mold adjusting template or the fixed template is easy to occur, certain potential safety hazards exist, and the safety of the mold clamping mechanism is poor.
Disclosure of Invention
The invention mainly aims to provide a mechanical locking device and a clamping mechanism with the same, so as to solve the problem of potential safety hazard of the clamping mechanism in the prior art due to poor safety.
In order to achieve the above object, according to one aspect of the present invention, there is provided a mechanical locking device for locking a safety lever of a mold apparatus, the mechanical locking device comprising: a frame; the connecting rod mechanism is rotatably connected with the rack and comprises a first connecting rod; the adjusting structure is connected with the connecting rod mechanism to push or pull the connecting rod mechanism so as to enable the first connecting rod to perform lifting motion; the lock body assembly comprises a lock body and a lock cylinder, wherein the lock body is provided with a through hole and a mounting hole communicated with the through hole; the lock body assembly is provided with a locking state that the lock cylinder extends into the through hole under the action of the self gravity of the lock cylinder so as to limit and stop the lock cylinder with the safety rod and an unlocking state that the lock cylinder exits out of the through hole; when the door body is in a closed state, the lock body assembly is in an unlocked state; when the door body is pulled open, the door body drives the adjusting structure to move, and the first connecting rod is disengaged from the lock cylinder, so that the lock body assembly is switched from the unlocking state to the locking state.
Further, the lock core is rotationally connected with the lock body, and the pivot axis of the lock core is parallel to the central axis of the through hole.
Further, the lock cylinder includes: the clamping part is rotatably connected with the lock body and extends into the through hole to limit and stop the safety rod; the extension portion is arranged on the clamping portion, the extension portion extends towards one side of the pivot axis far away from the clamping portion, and the first connecting rod pushes the extension portion or is separated from the extension portion.
Further, the link mechanism further includes: the first end of the second connecting rod is hinged with the rack, and the second end of the second connecting rod is hinged with the first end of the first connecting rod; the adjusting structure pushes or pulls the second connecting rod to enable the second connecting rod to rotate around the rack so as to enable the first connecting rod to perform lifting movement; and/or the adjusting structure pushes or pulls the third connecting rod to enable the third connecting rod to rotate around the rack, so that the first connecting rod carries out lifting movement.
Further, the second connecting rod and/or the third connecting rod are/is provided with a protruding piece, the adjusting structure is provided with a pushing surface, so that the pushing surface pushes the protruding piece to move upwards by moving the adjusting structure along the preset direction, and the first connecting rod moves upwards and pushes the lock cylinder; wherein, the preset direction and the top pushing surface form an included angle.
Furthermore, the adjusting structure is also provided with a first holding surface and a second holding surface, the second holding surface is connected with the first holding surface through an ejection surface, and the first holding surface and the second holding surface are arranged in parallel and are higher than the second holding surface; when the lock body assembly is in a locking state, the second retaining surface supports the protruding piece, the pushing and pulling door body drives the adjusting structure to move, so that the pushing and pulling surface pushes the protruding piece, the lock body assembly is switched from the locking state to an unlocking state, and when the lock body assembly is in the unlocking state, the first retaining surface supports the protruding piece.
Further, link mechanism still includes the jacking plate body of setting on first connecting rod, and the jacking plate body sets up with first holding surface is parallel to each other.
Further, the protruding member is a wheel-shaped structure, and the wheel-shaped structure is rotatably arranged on the second connecting rod and/or the third connecting rod.
Further, the lock body and the adjusting structure are respectively located on two sides of the connecting rod mechanism.
According to another aspect of the invention, a mold clamping mechanism is provided, which comprises a mold clamping body, a mechanical locking device and a door body, wherein a frame of the mechanical locking device is mounted on the mold clamping body, the door body is slidably arranged on the mold clamping body, the mold clamping body comprises a safety rod and a mold adjusting template connected with the safety rod, so that the door body is pushed and pulled to drive an adjusting structure of the mechanical locking device to move, and a lock body assembly of the mechanical locking device locks or unlocks the mold adjusting template; wherein, the mechanical locking device is the above mechanical locking device.
Further, the safety rod is provided with a limiting concave part, so that the lock body assembly is in a locking state by enabling the lock cylinder of the lock body assembly to extend into the limiting concave part under the action of self gravity and limit and stop the limiting concave part.
Furthermore, the limiting concave parts are multiple and are arranged at intervals along the extending direction of the safety rod.
By applying the technical scheme of the invention, the safety rod of the die closing mechanism is arranged in the through hole of the lock body in a penetrating way, and the adjusting structure is connected with the door body of the die closing mechanism. When the door body is in a closed state, the lock body assembly is in an unlocked state. Like this, when the staff accident pulls open the door body, the door body drives the motion of adjustment structure, so that first connecting rod descends along its direction of height and breaks away from the cooperation with the lock core, so that the lock core stretches into in the cross hole under its self action of gravity with the spacing backstop of safety lever, the lock body subassembly is switched into the locking state by the unblock state, the safety lever is locked, then the staff can not operate the safety lever, the accent mould template of being connected with the safety lever also is in the locking state, then locking mechanism can not continue the operation, avoid locking mechanism to press from both sides and hinder the staff, and then solved among the prior art problem that locking mechanism exists the potential safety hazard because of the security is relatively poor. When treating the door body and being closed, the door body drives the motion of adjustment structure to make first connecting rod rise along its direction of height and carry out the jacking to the lock core, so that the lock core withdraws from outside the via hole, the lock body subassembly is switched into the state of unblocking by the locking state, and the safety lever can continue the operation, and then makes locking mechanism can normal use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic perspective view of an embodiment of a mechanical locking device according to the invention; and
fig. 2 is a partial perspective view of an embodiment of a mold clamping mechanism according to the present invention.
Wherein the figures include the following reference numerals:
10. a frame; 20. a link mechanism; 21. a first link; 22. a second link; 23. a third link; 24. a protruding member; 25. jacking a plate body; 30. adjusting the structure; 31. pushing the surface; 32. a first retaining surface; 33. a second holding surface; 40. a lock body assembly; 41. a lock body; 411. a via hole; 412. mounting holes; 42. a lock cylinder; 421. a clamping part; 422. an extension portion; 50. a safety lever; 51. a limiting concave part; 60. a mold closing body; 70. a door body.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.
In order to solve the problem that a potential safety hazard exists in a mold clamping mechanism in the prior art due to poor safety, the application provides a mechanical locking device and a mold clamping mechanism with the same.
As shown in fig. 1, a mechanical locking device for locking a safety lever 50 of a mold mechanism includes a frame 10, a link mechanism 20, an adjustment structure 30, and a lock body assembly 40. Wherein the link mechanism 20 is rotatably connected with the frame 10, and the link mechanism 20 includes a first link 21. The adjusting structure 30 is connected with the door body 70 of the mold clamping mechanism, and the adjusting structure 30 is connected with the link mechanism 20 to push or pull the link mechanism 20 so as to enable the first connecting rod 21 to perform lifting movement. The lock body assembly 40 includes a lock body 41 and a lock cylinder 42, the lock body 41 having a through hole 411 and a mounting hole 412 communicating with the through hole 411; the through hole 411 is used for the safety rod 50 to pass through, the lock cylinder 42 is movably arranged in the installation hole 412, and the lock body assembly 40 has a locking state that the lock cylinder 42 extends into the through hole 411 under the action of the self gravity to be limited and stopped by the safety rod 50 and an unlocking state that the lock cylinder 42 is withdrawn out of the through hole 411. When the door body 70 is in a closed state, the lock body assembly 40 is in an unlocked state; when the door body 70 is pulled open, the door body 70 drives the adjusting structure 30 to move, and the first connecting rod 21 is disengaged from the key cylinder 42, so that the lock body assembly 40 is switched from the unlocking state to the locking state.
Use the technical scheme of this embodiment, when the staff unexpected pull open door body 70, door body 70 drives the motion of adjustment structure 30, so that first connecting rod 21 descends along its direction of height and breaks away from the cooperation with lock core 42, so that lock core 42 stretches into in the hole 411 with the spacing backstop of safety lever 50 under its self action of gravity, lock body subassembly 40 switches into locking state by the unblock state, safety lever 50 is locked, then the staff can not operate safety lever 50, the accent mould template of being connected with safety lever 50 is also in locking state, then the locking mechanism can not continue the operation, avoid the clamping mechanism to hinder the staff, and then the problem that has the potential safety hazard because of the security is relatively poor among the prior art has been solved to the locking mechanism. When the door body 70 is closed, the door body 70 drives the adjusting structure 30 to move, so that the first connecting rod 21 rises along the height direction thereof and jacks the lock cylinder 42, so that the lock cylinder 42 exits to the outside of the via hole 411, the lock body assembly 40 is switched from the locking state to the unlocking state, the safety rod 50 can continue to operate, and the mold clamping mechanism can be normally used.
As shown in fig. 1, the lock cylinder 42 is rotatably connected to the lock body 41, and the pivot axis of the lock cylinder 42 and the central axis of the through hole 411 are parallel to each other. Specifically, the lock body assembly 40 further includes a rotation shaft passing through the key cylinder 42 and the lock body 41 to realize the connection between the key cylinder 42 and the lock body 41. The arrangement ensures that the lock cylinder 42 can extend into the through hole 411, and the use reliability of the lock body assembly 40 is improved.
Specifically, the mounting hole 412 communicates with the through hole 411, and during the rotation of the lock cylinder 42, the lock cylinder 42 can extend into the through hole 411 and limit and stop with the safety lever 50 located in the through hole 411, so as to lock the safety lever 50.
As shown in fig. 1, key cylinder 42 includes a snap-in portion 421 and an extension portion 422. The fastening portion 421 is rotatably connected to the lock body 41, and the fastening portion 421 extends into the through hole 411 to limit the stop of the safety lever 50. The extending portion 422 is disposed on the fastening portion 421, the extending portion 422 extends toward a side away from the pivot axis of the fastening portion 421, and the first link 21 pushes the extending portion 422 or disengages from the extending portion 422. Thus, the structure is simple, the processing and the realization are easy, and the processing cost of the lock cylinder 42 is reduced.
Specifically, when the staff pushed and pulled the door body 70 and made the door body 70 be in the closed condition, the door body 70 drove the motion of adjusting structure 30, so that first connecting rod 21 rises, first connecting rod 21 and extension 422 contact, in order to jack extension 422, drive joint portion 421 through extension 422 and rotate, so that lock core 42 withdraws from via 411, safety lever 50 can freely slide in via 411, then the accent mould template of being connected with safety lever 50 can move, locking mechanism can normal operating. When the staff accidentally opens the door body 70, the door body 70 drives the adjustment structure 30 to move, so that the first connecting rod 21 descends along the height direction thereof and is separated from the lock cylinder 42, so that the lock cylinder 42 extends into the via hole 411 under the action of the self gravity to be stopped by the safety rod 50, the safety rod 50 cannot freely slide in the via hole 411, the safety rod 50 and the die adjusting template are in a locking state, the die closing mechanism cannot be normally used, so that the clamping injury of the staff by the die closing mechanism is avoided, and the use safety of the die closing mechanism is further improved.
As shown in fig. 1, the link mechanism 20 further includes a second link 22 and a third link 23. Wherein, the first end of the second connecting rod 22 is hinged with the frame 10, and the second end of the second connecting rod 22 is hinged with the first end of the first connecting rod 21. The third connecting rod 23 and the second connecting rod 22 are parallel to each other, a first end of the third connecting rod 23 is hinged to the frame 10, a second end of the third connecting rod 23 is hinged to a second end of the first connecting rod 21, and the adjusting structure 30 pushes or pulls the third connecting rod 23 to rotate the third connecting rod 23 around the frame 10, so that the first connecting rod 21 performs a lifting motion. In this way, the adjusting structure 30 pushes or pulls the third link 23, so that the second link 22 connected to the first link 21 also rotates around the frame 10, so as to ensure that the first link 21 can perform lifting movement, thereby improving the operational reliability of the mechanical locking device. Meanwhile, the structure is simple, the processing and the realization are easy, and the processing cost of the connecting rod mechanism 20 is reduced.
Specifically, the lengths of the second link 22 and the third link 23 are the same, and a connection line between the second link 22 and the third link 23 and the connection position of the frame 10 is parallel to the first link 21, so that the second link 22 and the third link 23 drive the first link 21 to smoothly ascend and descend. Wherein the moving direction V of the adjusting structure 30 and the first link 21 are parallel to each other.
The structure of the link mechanism 20 is not limited to this. Optionally, the link mechanism 20 further includes a fourth link, the fourth link is mounted on the frame 10, a first end of the second link 22 is hinged to the frame 10 through the fourth link, and a first end of the third link 23 is hinged to the frame 10 through the fourth link.
The connection form between the adjustment structure 30 and the link mechanism 20 is not limited to this. In other embodiments not shown in the drawings, the adjustment mechanism pushes or pulls the second link to rotate the second link about the frame to cause the first link to perform an elevating motion. Like this, the adjustment structure promotes or pulls the second connecting rod to make the third connecting rod of being connected with first connecting rod also rotate around the frame, in order to guarantee that first connecting rod can carry out elevating movement, promoted mechanical locking device's operational reliability. Meanwhile, the structure is simple, the processing and the realization are easy, and the processing cost of the connecting rod mechanism is reduced.
In other embodiments not shown in the figures, the adjustment mechanism simultaneously pushes or pulls the second and third links to rotate the second and third links about the frame to cause the first link to perform an elevating motion.
As shown in fig. 1, the third link 23 is provided with a protrusion 24, and the adjusting structure 30 has an ejecting surface 31, so that the first link 21 moves upward and ejects the key cylinder 42 by moving the adjusting structure 30 in a predetermined direction, so that the ejecting surface 31 pushes the protrusion 24 to move upward. Wherein the preset direction and the pushing surface 31 form an included angle. Thus, the pushing surface 31 of the adjusting structure 30 pushes the protruding member 24 to move upward, so as to realize the rotation of the third link 23 around the frame 10, thereby making the first link 21 ascend and pushing the key cylinder 42. Meanwhile, the structure is simple, the processing and the realization are easy, and the processing cost of the connecting rod mechanism 20 is reduced.
Specifically, the preset direction is the movement direction V of the adjustment structure 30, and when the worker pulls the door body 70 along the preset direction, the door body 70 is in a closed state, and the lock body assembly 40 is in an unlocked state. The staff draws door body 70 along the opposite direction with predetermineeing the direction, and door body 70 is in the open mode, and lock body subassembly 40 is in the locking state, then locking mechanism can not normal use, avoids the staff to be hindered by the clamp.
In other embodiments not shown in the drawings, a protruding member is provided on the second link. Therefore, the pushing surface of the adjusting structure pushes the protruding piece to move upwards so as to realize the rotation of the second connecting rod around the rack, and further, the first connecting rod rises and pushes the lock cylinder. Meanwhile, the structure is simple, the processing and the realization are easy, and the processing cost of the connecting rod mechanism is reduced.
In other embodiments not shown in the figures, both the second and third links are provided with protruding elements. Therefore, the pushing surface of the adjusting structure pushes the protruding piece to move upwards so as to realize the rotation of the second connecting rod and the third connecting rod around the rack respectively, and further the first connecting rod rises and pushes the lock cylinder. Meanwhile, the structure is simple, the processing and the realization are easy, and the processing cost of the connecting rod mechanism is reduced.
As shown in fig. 1, the adjusting structure 30 further has a first holding surface 32 and a second holding surface 33, the second holding surface 33 is connected to the first holding surface 32 through the pushing surface 31, and the first holding surface 32 and the second holding surface 33 are arranged in parallel with each other and higher than the second holding surface 33. When the lock body assembly 40 is in the locked state, the second holding surface 33 supports the protruding member 24, the pushing surface 31 pushes the protruding member 24 by driving the adjusting structure 30 to move through the pushing and pulling door 70, the lock body assembly 40 is switched from the locked state to the unlocked state, and when the lock body assembly 40 is in the unlocked state, the first holding surface 32 supports the protruding member 24. Thus, when the first connecting rod 21 jacks up the lock cylinder 42, the first retaining surface 32 supports the protruding piece 24, so that the height of the first connecting rod 21 is ensured to be unchanged, and the lock cylinder 42 is always supported and jacked up, and further, the lock body assembly 40 is ensured to be in an unlocked state, the safety rod 50 can freely slide, and the clamping mechanism can be normally used.
Specifically, when the door body 70 is in the open state and the worker pulls the door body 70 in the preset direction (the moving direction V of the adjusting structure 30) to close the door body 70, the second holding surface 33 contacts the protruding member 24 and supports the protruding member 24, and at this time, the lock body assembly 40 is in the locked state. Thereafter, the door 70 continues to slide until the pushing surface 31 contacts the protruding member 24 and pushes the protruding member 24, and the first link 21 rises to lift the key cylinder 42. When the door body 70 slides to the second holding surface 33 to contact with the protruding part 24 and support the protruding part 24, the lock cylinder 42 is disengaged from the safety rod 50, the lock body assembly 40 is in the unlocking state, the safety rod 50 can freely slide in the through hole 411, the mold clamping mechanism can normally operate, and the door body 70 is closed.
Specifically, when the door body 70 is in a closed state and a worker accidentally opens the door body 70 (the sliding direction of the door body 70 is opposite to the preset direction), the protruding member 24 sequentially contacts with the first holding surface 32, the pushing surface 31 and the second holding surface 33 until the lock cylinder 42 falls into the through hole 411 to be limited and stopped by the safety rod 50, and the lock body assembly 40 is in a locked state, so that the safety rod 50 cannot freely slide, the mold closing mechanism cannot normally operate, and the clamping of the worker by the mold closing mechanism is avoided.
As shown in fig. 1, the link mechanism 20 further includes a lift-up plate 25 provided on the first link 21, the lift-up plate 25 and the first holding surface 32 being arranged in parallel with each other. Thus, the above arrangement ensures that the jacking plate body 25 is in contact with the extension 422 during the ascent of the first link 21, so that the key cylinder 42 is smoothly jacked, reducing the vibration of the key cylinder 42.
As shown in fig. 1, the protruding member 24 is a wheel-like structure, and the wheel-like structure is rotatably provided on the third link 23. Thus, the arrangement makes the friction between the wheel-shaped structure and the first holding surface 32, the pushing surface 31 and the second holding surface 33 be rolling friction, so as to reduce the friction between the protruding member 24 and the adjusting structure 30, reduce the structural wear of the two, and prolong the service life of the mechanical locking device.
As shown in fig. 1, the lock body 41 and the adjustment structure 30 are located on both sides of the linkage mechanism 20. Thus, the above arrangement ensures that the adjusting structure 30 does not structurally interfere with the lock body 41, thereby improving the reliability of the mechanical locking device.
As shown in fig. 2, the present application further provides a mold clamping mechanism, which includes a mold clamping body 60, a mechanical locking device, and a door body 70, wherein the frame 10 of the mechanical locking device is mounted on the mold clamping body 60, the door body 70 is slidably disposed on the mold clamping body 60, and the mold clamping body 60 includes a safety rod 50 and a mold adjusting template connected to the safety rod 50, so that the door body 70 is pushed and pulled to drive the adjusting structure 30 of the mechanical locking device to move, so that the lock body assembly 40 of the mechanical locking device locks or unlocks the mold adjusting template. Wherein, the mechanical locking device is the above mechanical locking device.
Specifically, when the staff accidentally pulls open the door body 70, the door body 70 drives the adjustment structure 30 to move, so that the first connecting rod 21 descends along the height direction thereof and is separated from the lock cylinder 42, so that the lock cylinder 42 extends into the hole 411 under the action of the self gravity to be stopped by the safety rod 50, the lock body assembly 40 is switched from the unlocking state to the locking state, the safety rod 50 is locked, the staff cannot operate the safety rod 50, the mold adjusting template connected with the safety rod 50 is also in the locking state, the mold closing mechanism cannot continue to operate, the staff is prevented from being injured by the clamping of the mold closing mechanism, and the problem that the potential safety hazard exists due to the poor safety of the mold closing mechanism in the prior art is solved. When the door body 70 is closed, the door body 70 drives the adjusting structure 30 to move, so that the first connecting rod 21 rises along the height direction thereof and jacks the lock cylinder 42, so that the lock cylinder 42 exits to the outside of the via hole 411, the lock body assembly 40 is switched from the locking state to the unlocking state, the safety rod 50 can continue to operate, and the mold clamping mechanism can be normally used.
As shown in fig. 2, safety lever 50 has a limit recess 51 to place lock body assembly 40 in a locked state by having lock cylinder 42 of lock body assembly 40 extend into limit recess 51 under its own weight and limit stop with limit recess 51. Thus, the arrangement improves the reliability of the limit stop between the safety lever 50 and the lock cylinder 42, and ensures that the safety lever 50 can be sufficiently locked.
As shown in fig. 2, the plurality of stopper recesses 51 are provided, and the plurality of stopper recesses 51 are provided at intervals along the extending direction of the safety lever 50.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
when the staff accident pulls open the door body, the door body drives the motion of adjustment structure, so that first connecting rod descends along its direction of height and breaks away from the cooperation with the lock core, so that the lock core stretches into in the cross hole under its self action of gravity with the spacing backstop of safety lever, the lock body subassembly is switched into the locking state by the unblock state, the safety lever is locked, then the staff can not operate the safety lever, the accent mould template of being connected with the safety lever also is in the locking state, then locking mechanism can not continue the operation, avoid locking mechanism to press from both sides and hinder the staff, and then solved among the prior art problem that there is the potential safety hazard because of the security is relatively poor in locking mechanism. When treating the door body and being closed, the door body drives the motion of adjustment structure to make first connecting rod rise along its direction of height and carry out the jacking to the lock core, so that the lock core withdraws from outside the via hole, the lock body subassembly is switched into the state of unblocking by the locking state, and the safety lever can continue the operation, and then makes locking mechanism can normal use.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A mechanical locking device for locking a safety bar (50) of a die-casting mechanism, characterized in that it comprises:
a frame (10);
a linkage mechanism (20) rotatably connected with the frame (10), the linkage mechanism (20) comprising a first link (21);
the adjusting structure (30) is connected with a door body (70) of the mold clamping mechanism, and the adjusting structure (30) is connected with the connecting rod mechanism (20) to push or pull the connecting rod mechanism (20) so as to enable the first connecting rod (21) to perform lifting movement;
the lock body assembly (40) comprises a lock body (41) and a lock cylinder (42), wherein the lock body (41) is provided with a through hole (411) and a mounting hole (412) communicated with the through hole (411); the through hole (411) is used for the safety rod (50) to pass through, the lock cylinder (42) is movably arranged in the mounting hole (412), and the lock body assembly (40) has a locking state that the lock cylinder (42) extends into the through hole (411) under the action of the gravity of the lock cylinder to be limited and stopped with the safety rod (50) and an unlocking state that the lock cylinder (42) is withdrawn out of the through hole (411);
when the door body (70) is in a closed state, the lock body assembly (40) is in an unlocked state; when the door body (70) is pulled open, the door body (70) drives the adjusting structure (30) to move, and the first connecting rod (21) is disengaged from the lock cylinder (42) so that the lock body assembly (40) is switched from the unlocking state to the locking state;
the lock cylinder (42) includes:
the clamping portion (421) is rotatably connected with the lock body (41), and the clamping portion (421) extends into the through hole (411) to limit and stop the safety rod (50);
the extension part (422) is arranged on the clamping part (421), the extension part (422) extends towards one side far away from the pivot axis of the clamping part (421), and the first connecting rod (21) pushes the extension part (422) or is disengaged from the extension part (422).
2. The mechanical locking device according to claim 1, characterized in that the lock cylinder (42) is rotatably connected with the lock body (41), and the pivot axis of the lock cylinder (42) and the central axis of the through hole (411) are arranged in parallel with each other.
3. Mechanical locking device according to claim 1, characterized in that said linkage (20) further comprises:
a second connecting rod (22), wherein a first end of the second connecting rod (22) is hinged with the frame (10), and a second end of the second connecting rod (22) is hinged with a first end of the first connecting rod (21);
a third connecting rod (23) and the second connecting rod (22) are arranged in parallel, a first end of the third connecting rod (23) is hinged with the frame (10), a second end of the third connecting rod (23) is hinged with a second end of the first connecting rod (21), and the adjusting structure (30) pushes or pulls the second connecting rod (22) to enable the second connecting rod (22) to rotate around the frame (10) so as to enable the first connecting rod (21) to perform lifting movement; and/or the presence of a gas in the gas,
the adjusting structure (30) pushes or pulls the third connecting rod (23) to enable the third connecting rod (23) to rotate around the rack (10), so that the first connecting rod (21) performs lifting movement.
4. A mechanical locking device according to claim 3, wherein a protruding member (24) is provided on the second link (22) and/or the third link (23), the adjustment structure (30) having an ejection face (31) such that the first link (21) moves upward and ejects the key cylinder (42) by moving the adjustment structure (30) in a predetermined direction such that the ejection face (31) pushes the protruding member (24) upward; wherein the preset direction and the pushing surface (31) form an included angle.
5. Mechanical locking device according to claim 4, characterized in that the adjustment structure (30) further has a first retaining surface (32) and a second retaining surface (33), the second retaining surface (33) being connected to the first retaining surface (32) by the pushing surface (31), the first retaining surface (32) and the second retaining surface (33) being arranged parallel to each other and higher than the second retaining surface (33);
when the lock body assembly (40) is in the locking state, the second holding surface (33) supports the protruding piece (24), the adjusting structure (30) is driven to move by pushing and pulling the door body (70), so that the pushing surface (31) pushes the protruding piece (24), the lock body assembly (40) is switched from the locking state to the unlocking state, and when the lock body assembly (40) is in the unlocking state, the first holding surface (32) supports the protruding piece (24).
6. Mechanical locking device according to claim 5, characterized in that the linkage (20) further comprises a jacking plate (25) arranged on the first link (21), the jacking plate (25) and the first retaining surface (32) being arranged parallel to each other.
7. Mechanical locking device according to claim 4, characterized in that the protruding member (24) is a wheel-like structure, which is rotatably arranged on the second link (22) and/or the third link (23).
8. Mechanical locking device according to claim 1, characterized in that the lock body (41) and the adjustment structure (30) are located on either side of the linkage mechanism (20).
9. The mold clamping mechanism is characterized by comprising a mold clamping body (60), a mechanical locking device and a door body (70), wherein a rack (10) of the mechanical locking device is mounted on the mold clamping body (60), the door body (70) is slidably arranged on the mold clamping body (60), and the mold clamping body (60) comprises a safety rod (50) and a mold adjusting template connected with the safety rod (50), so that the door body (70) is pushed and pulled to drive an adjusting structure (30) of the mechanical locking device to move, and a lock body assembly (40) of the mechanical locking device locks or unlocks the mold adjusting template; wherein the mechanical locking device is a mechanical locking device according to any one of claims 1 to 8.
10. The clamping mechanism of claim 9, wherein the safety lever (50) has a limiting recess (51) to place the lock body assembly (40) in the locked state by the lock cylinder (42) of the lock body assembly (40) extending into the limiting recess (51) under its own weight and limiting the stop with the limiting recess (51).
11. The clamping mechanism according to claim 10, wherein the limiting recess (51) is provided in plurality, and the limiting recesses (51) are provided at intervals along the extending direction of the safety lever (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910810613.4A CN110524832B (en) | 2019-08-29 | 2019-08-29 | Mechanical locking device and mold clamping mechanism with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910810613.4A CN110524832B (en) | 2019-08-29 | 2019-08-29 | Mechanical locking device and mold clamping mechanism with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110524832A CN110524832A (en) | 2019-12-03 |
| CN110524832B true CN110524832B (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910810613.4A Active CN110524832B (en) | 2019-08-29 | 2019-08-29 | Mechanical locking device and mold clamping mechanism with same |
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| Country | Link |
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| CN (1) | CN110524832B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4737093A (en) * | 1985-06-07 | 1988-04-12 | Kabushiki Kaisha Sanjoseiki Seisakusho | Die locking mechanism for a molding apparatus |
| JP2001191384A (en) * | 2000-01-12 | 2001-07-17 | Toshiba Mach Co Ltd | Mechanical safety device for mold clamping device |
| CN201794405U (en) * | 2010-09-16 | 2011-04-13 | 浙江申达机器制造股份有限公司 | Protective sliding door self-locking mechanism of electric injection molding machine |
| CN202129957U (en) * | 2011-03-25 | 2012-02-01 | 广州博创机械有限公司 | Special simple efficient mechanical protection device for injection moulding machine |
| CN202480354U (en) * | 2011-11-28 | 2012-10-10 | 佛山市宝捷精密机械有限公司 | Safety door protector of injection molding machine |
| CN102672931B (en) * | 2012-04-11 | 2015-01-21 | 宁波海日塑料机械制造有限公司 | Mechanical safety mechanism of injection molding machine |
| CN109228216A (en) * | 2018-09-14 | 2019-01-18 | 珠海格力智能装备有限公司 | Mode locking protector and injection molding machine with same |
| CN109263005B (en) * | 2018-10-30 | 2020-01-10 | 珠海格力电器股份有限公司 | Locking mechanism and injection molding machine with same |
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2019
- 2019-08-29 CN CN201910810613.4A patent/CN110524832B/en active Active
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| CN110524832A (en) | 2019-12-03 |
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