CN113246416B - Clamping mechanism and injection molding machine - Google Patents
Clamping mechanism and injection molding machine Download PDFInfo
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- CN113246416B CN113246416B CN202110649398.1A CN202110649398A CN113246416B CN 113246416 B CN113246416 B CN 113246416B CN 202110649398 A CN202110649398 A CN 202110649398A CN 113246416 B CN113246416 B CN 113246416B
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- cover plate
- push plate
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- 230000007246 mechanism Effects 0.000 title claims abstract description 51
- 238000001746 injection moulding Methods 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 15
- 230000033001 locomotion Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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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
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/641—Clamping devices using means for straddling or interconnecting the mould halves, e.g. jaws, straps, latches
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a mold locking mechanism and an injection molding machine. The mold locking mechanism comprises a tail plate, a cover plate, a guide rod and a push plate; the cover plate is arranged on one side of the tail plate and fixedly connected with the tail plate, and the tail plate and the cover plate jointly enclose to form an accommodating cavity; the length direction of the guide rod extends along the direction from the tail plate to the fixed die plate, two ends of the guide rod are respectively connected with the tail plate and the cover plate in a sliding mode, and the guide rod can slide along the length direction of the guide rod. According to the technical scheme, the push plate is arranged in an accommodating cavity formed by enclosing the tail plate and the cover plate; the guide rod is fixedly connected with the push plate, and two ends of the push plate are respectively connected with the tail plate and the cover plate in a sliding mode, so that the guide rod and the tail plate and the guide rod and the cover plate can slide relatively, no relative sliding exists between the push plate and the guide rod, and a wear gap is caused to occur.
Description
Technical Field
The invention relates to the technical field of injection molding, in particular to a mold locking mechanism and an injection molding machine using the same.
Background
The injection molding machine need use clamping mechanism when realizing the process of moulding plastics, and clamping mechanism has relative movable mould board and the fixed die plate that sets up, and one side that the movable mould board deviates from the fixed die plate still the transmission is connected with the push pedal, drives the movable mould board when the push pedal motion and keeps away from or be close to the fixed die plate, and then realizes opening and shutting of mould and move. In order to ensure that the push plate has a better guiding effect during movement, a tail plate is fixedly arranged on one side of the push plate, which is deviated from the fixed template, the tail plate is connected with the fixed template through a guide rod, and the push plate is arranged on the guide rod in a sliding manner. However, in the conventional mold clamping mechanism, the push plate is connected with the guide rod in a sliding manner, and when the push plate is connected with the guide rod, the support length of the guide rod by the inner wall of the sliding hole of the push plate is shorter, and after the push plate and the guide rod slide relatively and are abraded, a gap is formed between the inner wall of the sliding hole, through which the guide rod penetrates, in the push plate and the guide rod, so that the push plate is easy to turn over in the operation process.
Disclosure of Invention
The invention mainly aims to provide a mold locking mechanism and aims to solve the problem that a push plate is easy to turn over in the operation process.
In order to achieve the purpose, the mold locking mechanism provided by the invention comprises a tail plate, a cover plate, a guide rod and a push plate; the cover plate is arranged on one side of the tail plate and fixedly connected with the tail plate, and the tail plate and the cover plate jointly enclose to form an accommodating cavity; the length direction of the guide rod extends along the direction from the tail plate to the cover plate, two ends of the guide rod are respectively connected with the tail plate and the cover plate in a sliding mode, and the guide rod can slide along the length direction of the guide rod; the push plate is arranged in the accommodating cavity and fixedly connected with the guide rod, and the push plate and the guide rod keep relative static and synchronous sliding.
Optionally, the tail plate is provided with a first guide hole, and one end of the guide rod passes through the first guide hole; and/or the cover plate is provided with a second guide hole, and the other end of the guide rod penetrates through the second guide hole.
Optionally, bushings are mounted in the first guide hole and the second guide hole, and the bushings are sleeved outside the guide rod.
Optionally, the push plate comprises a main body portion and a barrel mounting portion; the barrel installation part is fixedly connected with the main body part, the length direction of the barrel installation part is consistent with the length direction of the guide rod, and the guide rod penetrates through the barrel installation part and is fixedly connected with the barrel installation part.
Optionally, a flange is fixedly sleeved outside the guide rod and connected with the end flange of the cylinder mounting part.
Optionally, the guide rod is provided with an annular groove, the flange is formed by enclosing two half ring pieces, and the two half ring pieces are clamped in the annular groove and are connected with the end flange of the cylinder mounting part.
Optionally, the mold locking mechanism further comprises a fixed mold plate and a movable mold plate; the fixed template is arranged on one side of the cover plate, which is far away from the tail plate, and is arranged at an interval with the tail plate; the movable template is arranged between the cover plate and the fixed template; the push plate is in transmission connection with the movable template and drives the movable template to move towards the direction close to or far away from the fixed template.
Optionally, the mold locking mechanism further comprises a pull rod perpendicular to the fixed mold plate, two ends of the pull rod are respectively connected with the tail plate and the fixed mold plate, and the pull rod penetrates through two opposite sides of the movable mold plate.
Optionally, the mold locking mechanism further comprises a link mechanism, one end of the link mechanism is hinged to the push plate, and the other end of the link mechanism is hinged to the movable mold plate.
The invention also provides an injection molding machine which comprises the mold locking mechanism.
According to the technical scheme, the tail plate and the cover plate are fixedly connected and jointly enclosed to form the containing cavity, the push plate is arranged in the containing cavity, the guide rod is fixedly connected with the push plate, two ends of the guide rod are respectively connected with the tail plate and the cover plate in a sliding mode, so that the guide rod and the tail plate as well as the guide rod and the cover plate slide relatively, abrasion gaps are formed between the guide rod and the tail plate as well as between the guide rod and the cover plate, the abrasion gaps are caused by the fact that the push plate and the guide rod do not slide relatively, and the abrasion gaps are formed between the guide rod and the tail plate and/or between the guide rod and the cover plate because the length size between the two ends of the guide rod is larger than the size of the push plate along the length direction of the guide rod, so that the influence on the push plate is small when the abrasion gaps are formed between the guide rod and the tail plate and/or between the guide rod and the cover plate, and the occurrence of the overturn of the push plate is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a cross-sectional view of one embodiment of a clamping mechanism of the present invention;
fig. 2 is a schematic perspective view of an embodiment of the mold clamping mechanism of the present invention with a quarter of the structure broken away.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
101 | |
| 200 | Fixed |
300 | |
| 301 | Second guiding |
410 | |
| 420 | Bushing | 430 | |
| 500 | |
510 | |
| 520 | |
600 | |
| 700 | |
800 | |
| 810 | First connecting |
820 | Second connecting |
| 830 | Third connecting |
900 | Pull rod |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a mold locking mechanism.
In an embodiment of the present invention, please refer to fig. 1 and fig. 2 in combination, the mold locking mechanism includes a tail plate 100, a cover plate 300, a guide rod 410, and a push plate 500; the cover plate 300 is arranged on one side of the tail plate 100 and fixedly connected with the tail plate 100, and the tail plate 100 and the cover plate 300 jointly enclose to form an accommodating cavity; the length direction of the guide rod 410 extends along the direction from the tail plate 100 to the fixed die plate 200, two ends of the guide rod 410 are respectively connected with the tail plate 100 and the cover plate 300 in a sliding manner, and the guide rod 410 can slide along the length direction; the push plate 500 is disposed in the accommodating cavity and fixedly connected to the guide rod 410, and the push plate and the guide rod keep relatively static and slide synchronously.
In the technical solution of the present invention, the fact that the push plate 500 and the guide rod 410 slide synchronously while keeping stationary means that the push plate 500 and the guide rod 410 do not slide relatively, but the two can achieve the effect of synchronous sliding with respect to other stationary components (e.g., the tailgate 100 and the cover plate 300). Specifically, the guide rod 410 in the mold locking mechanism may be a cylindrical guide rod 410 or a prismatic guide rod 410, the length direction of the guide rod 410 extends along the direction from the tail plate 100 to the cover plate 300, and the guide rod 410 is fixedly connected with the push plate 500, so that both the guide rod 410 and the push plate 500 are kept in a relatively static state; and the two ends of the guide rod 410 are respectively connected with the tail plate 100 and the cover plate 300 in a sliding manner, the push plate 500 and the guide rod 410 can synchronously move along the length direction of the guide rod 410 relative to the tail plate 100 and the cover plate 300. In the technical scheme of the invention, a driving member 700 connected with the push plate 500 or the guide rod 410 can be further arranged, the driving member 700 can drive the push plate 500 and the guide rod 410 to move along the length direction of the guide rod 410 relative to the tail plate 100 and the cover plate 300, and the push plate 500 has a better guiding effect when moving. By fixedly connecting the push plate 500 and the guide rod 410, the relative sliding between the push plate 500 and the guide rod 410 with a sliding gap can be avoided, thereby avoiding the situation that the push plate 500 overturns relative to the guide rod 410. In addition, the two ends of the guide rod 410 are respectively connected with the tail plate 100 and the cover plate 300 in a sliding manner, so that on one hand, the push plate 500 can still move along the length direction of the guide rod 410 through the guide rod 410; on the other hand, the guide rod 410 is supported by sliding through two ends, so that the distance between the two ends of the guide rod 410 is longer relative to the size of the push plate 500 in the direction from the tail plate 100 to the cover plate 300, and even if a wear gap exists between the guide rod 410 and the tail plate 100 and/or the cover plate 300, the influence on the push plate 500 is not large, and the possibility that the push plate 500 is overturned due to the wear gap existing between the guide rod 410 and the tail plate 100 and/or the cover plate 300 is reduced.
Specifically, when the driving member 700 is provided to drive the push plate 500 to move in the present invention, the driving member 700 in the present invention may be a driving cylinder or a driving motor, etc., as long as the driving member 700 can drive the push plate 500 to move along the direction of the guide rod 410. Further, in order to ensure the stability of the movement of the push plate 500, the driving member 700 may drive the middle portion of the connection push plate 500. In addition, the guide rods 410 of the present invention may be provided with two, three, four or more, for example, when two guide rods 410 are provided, the two guide rods 410 may be symmetrically provided at two opposite sides of the push plate 500, thereby further improving the balance stability of the operation of the push plate 500. When three, four or more guide rods 410 are provided, the three guide rods 410 can be distributed in a circular array relative to the center of the push plate 500, thereby further improving the stability of the operation of the push plate 500.
According to the technical scheme, the tail plate 100 and the cover plate 300 are fixedly connected and jointly enclosed to form an accommodating cavity, the push plate 500 is arranged in the accommodating cavity, the guide rod 410 is fixedly connected with the push plate 500, and two ends of the guide rod 410 are respectively connected with the tail plate 100 and the cover plate 300 in a sliding manner, so that the guide rod 410 and the tail plate 100 as well as the guide rod 410 and the cover plate 300 slide relatively, and therefore abrasion gaps are formed between the guide rod 410 and the tail plate 100 as well as between the guide rod 410 and the cover plate 300, and the abrasion gaps caused by the relative sliding between the guide rod 410 and the push plate 500 are avoided; and because the length between the two ends of the guide rod 410 is greater than the size of the push plate 500 along the length direction of the guide rod 410, when a wear gap exists between the guide rod 410 and the tail plate 100 and/or between the guide rod 410 and the cover plate 300, the influence on the push plate 500 is small, and the occurrence of the overturn of the push plate 500 is reduced.
Referring to fig. 1 and fig. 2, based on the above scheme that two ends of the guide rod 410 are slidably connected to the tail plate 100 and the cover plate 300, specifically, in the present embodiment, the tail plate 100 is provided with a first guide hole 101, and one end of the guide rod 410 passes through the first guide hole 101.
The first guide hole 101 is formed in the tail plate 100, and one end of the guide rod 410 penetrates through the first guide hole 101, so that the guide rod 410 can effectively slide relative to the tail plate 100, and when the push plate 500 moves under the action of external force, the push plate 500 can slide relative to the first guide hole 101 through the guide rod 410.
Certainly, in other embodiments, in order to achieve the effect that the guide rod 410 slides relative to the tail plate 100, the tail plate 100 may further have a first sliding slot, the length direction of the first sliding slot extends along the direction from the tail plate 100 to the cover plate 300, and one end of the guide rod 410 is disposed in the first sliding slot, so that the guide rod 410 can slide along the first sliding slot, thereby achieving the effect that the push plate 500 moves along the length direction of the guide rod 410.
In this embodiment, referring to fig. 1 and fig. 2, the cover plate 300 may also be provided with a second guiding hole 301, and the other end of the guiding rod 410 passes through the second guiding hole 301.
The second guide hole 301 is formed in the cover plate 300, and the other end of the guide rod 410 passes through the second guide hole 301, so that the other end of the guide rod 410 can effectively slide relative to the cover plate 300, and when the push plate 500 moves under the driving of an external force, the push plate 500 can slide relative to the second guide hole 301 through the guide rod 410.
Certainly, in other embodiments, in order to achieve the effect that the guide rod 410 slides relative to the cover plate 300, the cover plate 300 may further have a second sliding slot, a length direction of the second sliding slot extends along the direction from the tail plate 100 to the cover plate 300, and one end of the guide rod 410 is disposed in the second sliding slot, so that the guide rod 410 can slide along the second sliding slot, and the effect that the push plate 500 moves along the length direction of the guide rod 410 is achieved.
It should be noted that, in the technical solution of the present invention, the scheme that the tail plate 100 is provided with the first guide hole 101 and the scheme that the cover plate 300 is provided with the second guide hole 301 may exist at the same time, and one end of the guide rod 410 passes through the first guide hole 101 and the other end passes through the second guide hole 301. Further, the first guide hole 101 and the second guide hole 301 can be coaxially arranged, so that the guide rod 410 can have a good installation effect and a good guide effect after penetrating through the first guide hole 101 and the second guide hole 301. The shapes of the first guide hole 101 and the second guide hole 301 are respectively matched with the shapes of the two ends of the guide rod 410, so that an assembly gap between the first guide hole 101 and the guide rod 410 and/or between the second guide hole 301 and the guide rod 410 due to the fact that the shapes are not matched is avoided, and the stability of the push plate 500 in the movement along the length direction of the guide rod 410 is improved.
Referring to fig. 1 and fig. 2, based on the above-mentioned scheme that the tail plate 100 is provided with the first guide hole 101, and the cover plate 300 is provided with the second guide hole 301, in this embodiment, further, bushings 420 are installed in the first guide hole 101 and the second guide hole 301, and the bushings 420 are sleeved outside the guide rod 410.
With the arrangement, on one hand, the wear resistance of the guide rod 410 and the first guide hole 101 and the wear resistance of the guide rod 410 and the second guide hole 301 during relative sliding are improved; on the other hand, after the guide rod 410 and the first guide hole 101 and the guide rod 410 and the second guide hole 301 slide relatively to each other and are worn, only the bushing 420 needs to be replaced, so that the whole guide rod 410 is prevented from being replaced, and replacement cost and replacement procedures are reduced.
In the technical solution of the present invention, referring to fig. 1 and 2, the push plate 500 includes a main body portion 510 and a cylinder mounting portion 520, the cylinder mounting portion 520 is fixedly connected to the main body portion 510, a length direction of the cylinder mounting portion 520 is identical to a length direction of the guide rod 410, and the guide rod 410 passes through the cylinder mounting portion 520 and is fixedly connected to the cylinder mounting portion 520.
The strength of the main body 510 in this embodiment is relatively high, and the main body 510 can be used as a force application position when an external force pushes the push plate 500 to move, and/or can be used as a force application position when the push plate 500 pushes other transmission members to move. Through connecting barrel installation portion 520 in main part 510, the length direction of barrel installation portion 520 is unanimous with the length direction of guide arm 410, and guide arm 410 is fixed to pass barrel installation portion 520, makes barrel installation portion 520 have better supporting effect to guide arm 410, avoids connecting insecure problem through point-to-surface contact when guide arm 410 and push pedal 500 fixed connection. Specifically, when the guide rod 410 is fixedly connected with the cylinder mounting part 520, the guide rod and the cylinder mounting part can be connected through a connecting piece, such as a screw, a snap pin or a flange; or they may be integrally connected, for example, they may be integrally formed by welding, bonding or by an integral molding direction.
In addition, when one guide rod 410 is provided, the cylinder mounting part 520 is connected to the middle of the main body part 510 to ensure the stability of the push plate 500 in the movement process; when the guide rods 410 are provided with at least two, the cylinder mounting parts 520 can also be provided with at least two, the at least two cylinder mounting parts 520 are symmetrically arranged at two opposite sides of the main body part 510, and a guide rod 410 is fixedly arranged in each cylinder mounting part 520 in a penetrating manner, so that the supporting force of each guide rod 410 to the push plate 500 can be dispersed, and the stability of the push plate 500 in the motion process can be improved.
Referring to fig. 1 and fig. 2, in order to achieve the effect of fixedly connecting the guide rod 410 and the cylinder mounting portion 520, the invention provides an embodiment in which a flange 430 is fixedly sleeved outside the guide rod 410, and the flange 430 is connected with the end flange of the cylinder mounting portion 520.
The flange 430 is fixedly sleeved outside the guide rod 410, and the flange 430 is in flange connection with the end part of the cylinder mounting part 520, so that the guide rod 410 is fixedly connected to the cylinder mounting part 520 through the flange 430, and the push plate 500 and the guide rod 410 are ensured to keep relatively static. In addition, the guide rods 410 are fixedly connected to the cartridge mounting portion 520 via the flange 430, which facilitates the operation of the connection process when the guide rods 410 are fixedly connected to the cartridge mounting portion 520. Specifically, two flanges 430 may be sleeved outside each guide rod 410, and the two flanges 430 are respectively and fixedly connected to two opposite ends of the barrel mounting portion 520. In addition, when the flange 430 and the guide rod 410 are fixedly connected, the flange and the guide rod can be fixedly connected by means of pins, bolts, welding or the like.
The invention provides an embodiment of the connection of a guide rod 410 and a flange plate 430: the guide rod 410 is provided with an annular groove, the flange 430 is formed by two half-ring pieces in a surrounding manner, and the two half-ring pieces are clamped in the annular groove and are connected with the end flange of the cylinder mounting part 520.
By dividing the flange 430 into two half-rings that snap into the annular grooves, the flange 430 is easily mounted on the guide rods 410, and the manufacturing process of the guide rods 410 is also simplified. Specifically, when the two half-ring members are flange-connected to the end of the cylinder mounting portion 520, at least two screw mounting holes are formed in each of the two half-ring members, and the two half-ring members are connected to the end of the cylinder mounting portion 520 through screws passing through the screw mounting holes.
Of course, in other embodiments, the flange 430 may be fixed to the guide rod 410 by other methods. For example, the flange 430 may also be a whole disk-shaped structure, the guide rod 410 is convexly provided with an annular baffle, when the flange 430 is installed on the guide rod 410, the flange 430 is sleeved on the guide rod 410 from one end of the guide rod 410 and slides to the annular baffle along the axial direction of the guide rod 410, the flange may be connected with the annular baffle in a manner of screws or buckles, and the cylinder installation portion 520 of the push plate 500 is connected to one side of the flange 430, which is away from the annular baffle.
Referring to fig. 1 and fig. 2 in combination, it can be understood that, in order to enable the mold clamping mechanism to achieve the functions of mold clamping and mold opening, the mold clamping mechanism in the technical solution of the present invention may further include a movable mold plate 600 and a fixed mold plate 200, where the fixed mold plate 200 is disposed on a side of the cover plate 300 away from the end plate 100 and is spaced from the cover plate 300; the movable mold plate 600 is in transmission connection with the push plate 500, and the push plate 500 drives the movable mold plate 600 to move towards the direction close to the fixed mold plate 200 or away from the fixed mold plate 200.
The tail plate 100 and the fixed die plate 200 are fixed in the mold opening and closing process. When the push plate 500 is connected with the driving member 700, the driving member 700 can drive the push plate 500 to move towards the direction close to the fixed die plate 200 or away from the fixed die plate 200; the movable template 600 is arranged between the cover plate 300 and the fixed template 200 and is in transmission connection with the push plate 500, and further the push plate 500 can further drive the movable template 600 to move towards the direction close to the fixed template 200, so that the effect of mold closing is realized; or the push plate 500 drives the movable mold plate 600 to move away from the fixed mold plate 200, so as to achieve the mold opening effect.
In addition, the push plate 500 is arranged in the accommodating cavity formed by the tail plate 100 and the cover plate 300 enclosing together, so that the movement stroke of the push plate 500 can be limited by the cover plate 300 and the tail plate 100, and the push plate 500 is prevented from moving infinitely towards a certain direction when the driving member 700 drives the push plate 500. It is understood that the present invention can be configured such that when the push plate 500 moves into contact with the cover plate 300, the movable mold plate 600 is just matched with the fixed mold plate 200 by the push plate 500. Or the invention can control the movement stroke of the push plate 500 through the driving member 700, the driving member 700 drives the push plate 500 to move to the first position and stop, at this time, the movable template 600 is just matched with the fixed template 200 under the driving of the push plate 500; the driving member 700 stops when the push plate 500 is driven to move to the second position, and at this time, the movable mold plate 600 is driven by the push plate 500 to move in a direction away from the fixed mold plate 200, so as to achieve a mold opening state. According to the technical scheme of the invention, the driving member 700 drives the push plate 500 to move, and then the push plate 500 drives the movable template 600 to move, so that the movable template 600 is prevented from being directly connected with the driving member 700, and the movable template 600 is prevented from suddenly impacting the fixed template 200 under the direct action of the driving member 700 to cause damage. Specifically, in order to realize that the push plate 500 also drives the movable template 600 to move towards the direction close to the fixed template 200 or away from the fixed template 200 when moving towards the direction close to the fixed template 200 or away from the fixed template 200, the push plate 500 and the movable template 600 may be fixedly connected through a connecting part, so that the movement of the push plate 500 and the movable template 600 is performed synchronously; or the push plate 500 and the movable template 600 may be in transmission connection through a connecting rod, and the connecting rod may be used to drive the movable template 600 to move towards the direction close to the fixed template 200 or away from the fixed template 200 when the push plate 500 moves towards the direction close to the fixed template 200 or away from the fixed template 200.
Specifically, when the push plate 500 and the movable template 600 are in transmission connection, the movable template 600 and the push plate 500 can also be in transmission connection through at least two groups of connecting rods or two groups of connecting parts, and the connecting parts of the movable template 600 and the push plate 500 can be arranged in an array distribution relative to the center of the movable template 600, so that the effect of driving the movable template 600 to stably operate by the push plate 500 is realized. Based on the above-mentioned solution that the push plate 500 includes the main body 510 and the cylinder mounting part 520, both the driving member 700 and the movable die plate 600 can be connected to the main body of the push plate 500, so as to have better connection strength.
Further, referring to fig. 1 and fig. 2, in the technical solution of the present invention, the mold locking mechanism further includes a pull rod 900, and two ends of the pull rod 900 are respectively connected to the end plate 100 and the fixed mold plate 200.
The two ends of the pulling plate are respectively fixedly connected with the tail plate 100 and the fixed die plate 200, so that the tail plate 100 and the fixed die plate 200 have a stable state. Specifically, one, two, three, four or more tie rods 900 may be provided, and it is understood that when at least two tie rods 900 are provided, the connection between the end plate 100 and the fixed die plate 200 may be more stable, and the end plate 100 and the fixed die plate 200 may have better connection stability. Further, when two tie rods 900 are provided, the two tie rods 900 may be respectively connected to opposite ends of the tailgate 100, and the two tie rods 900 may be further respectively connected to opposite ends of the fixed die plate 200. The shapes of the end plate 100 and the fixed die plate 200 may be polygons such as a triangle, a quadrangle, or a pentagon, or may be circles, ellipses, or the like, and specifically, the shapes of the end plate 100 and the fixed die plate 200 may be selected according to actual needs. When the tail plate 100 and the fixed die plate 200 are triangular, three pull rods 900 connected between the tail plate 100 and the fixed die plate can be arranged, and the three pull rods 900 are respectively connected with three included angles of the triangle; when the end plate 100 and the fixed die plate 200 are rectangular, four tie rods 900 connected between the end plate and the fixed die plate can be arranged, and the four tie rods 900 are respectively connected with four included angles of the rectangle. In addition, when the number of the pull rods 900 is at least two, the at least two pull rods 900 may be arranged in parallel or the included angle between the at least two pull rods 900 may be acute.
It can be understood that when at least two tie rods 900 are arranged in parallel, the movable die plate 600 between the end plate 100 and the fixed die plate 200 has a good guiding effect when moving towards the direction close to the fixed die plate 200 and away from the fixed die plate 200. In addition, the pull rod 900 can be connected with the tail plate 100 in a plugging, screw, buckle or welding manner; similarly, the pull rod 900 may be connected to the cover plate 300 by plugging, screwing, snapping, or welding. Or, the two ends of the pull rod 900 are respectively provided with an external thread, the two ends of the pull rod 900 respectively penetrate through one side of the tail plate 100, which is back to the fixed template 200, and one side of the fixed template 200, which is back to the tail plate 100, and the two ends of the pull rod 900 are in screw fit with the external thread through nuts, so that the two ends of the pull rod 900 are respectively and fixedly connected to the tail plate 100 and the fixed template 200.
Further, referring to fig. 1 and 2, the pull rod 900 is disposed perpendicular to the fixed mold plate 200, and the pull rod 900 penetrates through two opposite sides of the movable mold plate 600.
This arrangement enables the movable platen 600 to move in the extending direction of the tie bars 900 when moving in the direction of approaching the fixed platen 200 and moving away from the fixed platen 200. In addition, the tie bars 900 are provided to be perpendicular to the fixed die plate 200, so that the movable die plate 600 can be close to the fixed die plate 200 or far from the fixed die plate 200 in a direction perpendicular to the fixed die plate 200.
Further, referring to fig. 1 and fig. 2, the mold locking mechanism further includes a link mechanism 800, one end of the link mechanism 800 is hinged to the push plate 500, and the other end is hinged to the movable mold plate 600.
The push plate 500 is in transmission connection with the movable mold plate 600 through the link mechanism 800, so that the mold locking mechanism can occupy less space and simultaneously enable the movable mold plate 600 to have a larger stroke. The linkage 800 of the present invention may be provided in one, two, three, four, or more sets. Alternatively, the linkage mechanism 800 in this embodiment may be provided with four sets, and the four sets of linkage mechanisms 800 are respectively connected to the four top corners of the push plate 500, i.e., the four sets of linkage mechanisms 800 are also respectively connected to the movable mold plate 600 at the same time, and the four sets of linkage mechanisms 800 may be symmetrically arranged with respect to the middle of the movable mold plate 600 when being connected to the movable mold plate 600. Further, in order to avoid the connection between the movable mold plate 600 and the link mechanism 800 and the generation of a large bending moment when the push plate 500 drives the movable mold plate 600 to move, the link mechanism 800 is hinged to the movable mold plate 600 near the center thereof.
In this embodiment, referring to fig. 1 and fig. 2, the link mechanism 800 includes a first link 810, a second link 820 and a third link 830; one end of the first link 810 is hinged to the movable mold plate 600, one end of the second link 820 is hinged to the other end of the first link 810, one end of the third link 830 is hinged to the second link 820, and the other end is hinged to the push plate 500.
When the driving member 700 drives the push plate 500 to move toward the direction close to the fixed mold plate 200 or away from the fixed mold plate 200, the push plate 500 drives the third link 830 to rotate by a certain angle, and then the third link 830 drives the second link 820 to rotate, and the second link 820 drives the first link 810 to rotate, and finally the first link 810 drives the movable mold plate 600 to move toward the direction close to the fixed mold plate 200 or away from the fixed mold plate 200 during the rotation process. Of course, in other embodiments, the connecting rod assembly may further include a fourth connecting rod, a fifth connecting rod, and the like, and every two adjacent connecting rods are hinged to each other.
Specifically, when one end of the third link 830 is hinged to the second link 820, the third link 830 may be hinged to the other end of the second link 820, or hinged to any position between two ends of the second link 820. Further, when the third link 830 is hinged at any position between the opposite ends of the second link 820, the other end of the second link 820 may be hinged to the tailgate 100. In addition, when the push plate 500 drives the movable mold plate 600 to move in a direction away from the fixed mold plate 200 through the link assembly, the second link 820 in the link assembly can move in a direction away from the middle of the push plate 500 under the action of the third link 830, that is, the second link 820 can rotate outwards, so that the third link 830 and the movable mold plate 600 are folded, and the mold opening effect is achieved.
The invention further provides an injection molding machine, which comprises a mold locking mechanism, the specific structure of the mold locking mechanism refers to the embodiments, and the injection molding machine adopts all the technical schemes of all the embodiments, so that the injection molding machine at least has all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A clamping mechanism, comprising:
a tail plate;
the cover plate is arranged on one side of the tail plate and fixedly connected with the tail plate, and the tail plate and the cover plate jointly enclose to form an accommodating cavity;
the length direction of the guide rod extends along the direction from the tail plate to the cover plate, two ends of the guide rod are respectively connected with the tail plate and the cover plate in a sliding mode, and the guide rod can slide along the length direction of the guide rod; and
the push plate is arranged in the accommodating cavity, is fixedly connected with the guide rod and keeps relatively static and synchronously slides;
the clamping mechanism further comprises:
the fixed template is arranged on one side of the cover plate, which is far away from the tail plate, and is arranged at an interval with the cover plate;
the movable template is arranged between the cover plate and the fixed template; the push plate is in transmission connection with the movable template and drives the movable template to move towards the direction close to or far away from the fixed template; and
and one end of the connecting rod mechanism is hinged to the push plate, and the other end of the connecting rod mechanism is hinged to the movable template.
2. The clamping mechanism according to claim 1, wherein the tail plate is provided with a first guide hole, and one end of the guide rod passes through the first guide hole; and/or the cover plate is provided with a second guide hole, and the other end of the guide rod penetrates through the second guide hole.
3. The clamping mechanism according to claim 2, wherein a bushing is installed in each of the first guide hole and the second guide hole, and the bushing is sleeved outside the guide rod.
4. The mold clamping mechanism of claim 1 wherein said pusher plate comprises:
a main body portion; and
the barrel installation part is fixedly connected with the main body part, the length direction of the barrel installation part is consistent with that of the guide rod, and the guide rod penetrates through the barrel installation part and is fixedly connected with the barrel installation part.
5. The clamping mechanism according to claim 4, wherein a flange is fixedly sleeved outside said guide rod, and said flange is connected with an end flange of said cylinder mounting portion.
6. The clamping mechanism according to claim 5, wherein the guide rod is provided with an annular groove, the flange is formed by two half ring pieces in a surrounding manner, and the two half ring pieces are clamped in the annular groove and connected with the end flange of the cylinder mounting part.
7. The mold clamping mechanism according to claim 1, further comprising a pull rod perpendicular to the fixed mold plate, wherein two ends of the pull rod are connected to the tail plate and the fixed mold plate respectively, and the pull rod penetrates through two opposite sides of the movable mold plate.
8. An injection molding machine comprising the mold clamping mechanism of any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110649398.1A CN113246416B (en) | 2021-06-10 | 2021-06-10 | Clamping mechanism and injection molding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110649398.1A CN113246416B (en) | 2021-06-10 | 2021-06-10 | Clamping mechanism and injection molding machine |
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| CN113246416A CN113246416A (en) | 2021-08-13 |
| CN113246416B true CN113246416B (en) | 2021-11-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200942570Y (en) * | 2006-08-08 | 2007-09-05 | 尔信机械(江门)有限公司 | Movably guiding die-locking mechanism |
| CN201423726Y (en) * | 2009-05-08 | 2010-03-17 | 东莞亿东机器有限公司 | Hexastyle toggle-rod locking mold structure |
| CN102729427A (en) * | 2012-06-11 | 2012-10-17 | 无锡天惠塑机有限公司 | Injection molding machine clamping apparatus |
| ITUB20169997A1 (en) * | 2016-01-14 | 2017-07-14 | Negri Bossi Spa | KNEEPAD CLOSING GROUP FOR INJECTION PRESS |
| CN211915428U (en) * | 2020-04-17 | 2020-11-13 | 阜新力达钢铁铸造有限公司 | Die casting machine |
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Address after: No.12, Shunchang Road, Wusha neighborhood committee, Daliang sub district office, Shunde District, Foshan City, Guangdong Province Patentee after: GUANGDONG YIZUMI PRECISION INJECTION TECHNOLOGY Co.,Ltd. Patentee after: Yizhimi Co.,Ltd. Address before: No.12, Shunchang Road, Wusha neighborhood committee, Daliang sub district office, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG YIZUMI PRECISION INJECTION TECHNOLOGY Co.,Ltd. Patentee before: GUANGDONG YIZUMI PRECISION MACHINERY Co.,Ltd. |
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Denomination of invention: Locking mechanism and injection molding machine Effective date of registration: 20231009 Granted publication date: 20211105 Pledgee: Ronggui sub branch of Guangdong Shunde Rural Commercial Bank Co.,Ltd. Pledgor: GUANGDONG YIZUMI PRECISION INJECTION TECHNOLOGY Co.,Ltd.|Yizhimi Co.,Ltd. Registration number: Y2023440000073 |