CN111844659A - A sequential mold-opening locking mechanism and sequential mold-opening injection mold - Google Patents

Abstract

The invention provides a sequential die opening locking mechanism and a sequential die opening injection mold, which comprise a buckling machine base, a buckling machine block, a buckling machine deflector rod and a buckling machine hook, wherein the buckling machine block is movably arranged on the buckling machine base so as to have a locking position locked on the buckling machine hook and a releasing position releasing the buckling machine hook; defining the direction of the button machine block from the releasing position to the locking position as the locking direction; the button machine seat is provided with a poking rod groove, the button machine poking rod is inserted in the poking rod groove, and the button machine poking rod is also provided with a contact part for fixing the button machine block at the locking position; the tail end of the button machine driving lever is bent to form an elbow structure deviating from the locking direction. The buckling block is fixed at the locking position through the abutting part of the buckling machine driving lever, in the die sinking process, the elbow structure at the end part realizes releasing the buckling block, namely unlocking is realized, the locking state of the buckling mechanism has no play gap, and the problems of poor stability and easy running failure of the existing buckling mechanism are solved.

Description

A sequential mold-opening locking mechanism and sequential mold-opening injection mold

technical field

The invention belongs to the technical field of mold manufacturing, and particularly relates to a sequential mold opening and locking mechanism and a sequential mold opening injection mold.

Background technique

Some mold-opening actions of injection molds often need to control the mold-opening sequence, so as to realize the fixed sequence of mold-opening. This kind of structure mold mostly uses nylon rubber stopper to pull out the movable plate, but because nylon rubber stopper is easy to deform in high temperature environment, resulting in abnormal mold clamping; insufficient clamping force of nylon rubber stopper often leads to wrong mold opening sequence, resulting in The product sticks to the mold. Therefore, it is often replaced by some mechanical sequential mold opening and button machines.

However, the conventional buttoning machine generally includes a spring-driven normally closed locking device, and in order to realize the unlocking drive, the buttoning block of the locking device has a movable space, which is easy to run and fail, and cannot lock the mold.

Therefore, there is an urgent need for a sequential mold-opening locking mechanism with a stable and controllable mold-opening sequence.

SUMMARY OF THE INVENTION

The present invention aims to provide a sequential mold-opening locking mechanism, so as to solve the problems of poor stability and easy running and failure of the locking mechanism.

The specific scheme is as follows: a sequential mold opening and locking mechanism, including a buckle base, a buckle block, a buckle lever and a buckle hook, the buckle block is movably installed on the buckle base so as to be locked to the buckle The lock position on the hook and the release position to release the hook;

The locking direction is defined as the direction of the locking block from the release position to the locking position; the locking base is provided with a lever slot, the locking lever is inserted in the lever groove, and the locking lever is There is also an interference part for fixing the locking block at the locking position; the end of the locking lever is also bent away from the locking direction to form an elbow structure.

A further technical solution of the present invention is as follows: define the fixed end of the latching lever as the upper end, the interference portion is a side of the latching lever facing the locking direction, and the elbow structure is connected to the lower part of the interfering portion . A further technical solution of the present invention is as follows: a first through groove is provided on the buckle block, and the buckle lever is inserted into the first through groove; the end of the elbow structure is further provided with a protrusion away from the locking direction of the unlocking contact part.

A further technical solution of the present invention is as follows: an inclined guiding slope is provided between the bottom end of the elbow structure and the interference portion;

The unlocking interference portion and the width of the interference portion are adapted to the width of the lever groove, and the unlocking interference portion abuts against the wall surface of the lever groove at the position where the guiding inclined surface abuts the latch block.

A further technical solution of the present invention is as follows: a second through slot is provided on the detent block, the detent hook is inserted in the second through slot and protrudes out of the detent block, and the end of the detent hook is provided with a The barb for hooking on the button block.

A further technical solution of the present invention is that: the buckle base is further provided with a reset piece, and the reset piece is arranged at a position where a force away from the locking direction is applied to the buckle block.

A further technical solution of the present invention is as follows: the reset piece is an elastic piece, one end of the elastic piece is in contact with the latching block, and the other end is in contact with the latching base, and then a latching block is applied to the latching block to be locked The force that moves the closed position toward the released position.

The present invention also provides a sequential mold-opening injection mold, which includes an A-plate, a movable push plate and a B-plate in sequence from top to bottom, and also includes the above-mentioned sequential mold-opening locking mechanism; the latching lever is fixed on the A plate On the upper, the hook of the hook is fixed on the movable push plate; the hook of the hook is movably installed on the seat of the hook, and the seat of the hook is fixed on the plate B; the lever and hook of the hook are inserted On the latching base, and in the clamping state, the latching lever is in contact with the latching block, so that the latching block is fixed at the locking position.

Beneficial effects: the sequential opening and locking mechanism and the sequential opening injection mold of the present invention include a latching base, a latching block, a latching lever and a latching hook, and the latching block is movably installed on the latching base, thereby It has a locking position that is locked on the hook and a release position that releases the hook; the direction of the locking block from the release position to the locking position is defined as the locking direction; the locking base is provided with a lever The latching lever is inserted into the lever slot, and the latching lever is also provided with a contact portion for fixing the latching block in the locked position; the end of the latching lever is also away from the lock It is bent in the same direction to form an elbow structure. The latching block is fixed in the locked position through the contact portion of the latching lever, and during the mold opening process, the elbow structure at the end realizes the release of the latching block, that is, the unlocking is realized. This locking mechanism is in the locked state. There is no moving gap, which solves the problems of poor stability and easy running and failure of the existing locking mechanism.

At the same time, the elbow structure also realizes the unlocking direction to drive the button block during the mold opening process, that is, the motion of the button block is driven by the button lever, and the elbow structure makes the button block no space for movement, firmly locking the mold. , and stabilize the mold opening movement, which further improves the stable mold opening effect.

In the sequential mold opening injection mold, since the movable push plate is installed on the B plate and locked by the locking mechanism, in order to realize the sequential mold opening of the movable push plate, it is required to realize the mold opening of the movable push plate after the detent lever is unlocked. However, in actual operation, the movable push plate bounces too late, which will lead to the failure of mold opening. At this time, the trigger lever is disengaged, and the movable push plate is locked again, so that the mold opening cannot be realized. The locking mechanism of the present invention is in the unlocked state after the locking lever is disengaged, which ensures that the movable push plate has sufficient response time, and the movable push plate can open the mold at any time according to the needs of the mold, which further improves the flexibility of the mold design. stability, production and use.

Description of drawings

Fig. 1 shows a partial cross-sectional view of the sequential mold-opening injection mold clamping state according to an embodiment of the present invention;

Figure 2 shows a schematic structural diagram of the sequential mold opening and locking mechanism on the sequential mold opening injection mold according to the embodiment of the present invention;

Figure 3 shows a partial cross-sectional view of the state of the sequential mold-opening injection mold opening process according to the embodiment of the present invention;

Figure 4 shows a partial cross-sectional view of the completed state of the first step of the sequential mold-opening injection mold according to the embodiment of the present invention;

FIG. 5 shows a partial enlarged view of A in FIG. 4 .

Detailed ways

To further illustrate the various embodiments, the present invention is provided with the accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant description of the specification to explain the operation principles of the embodiments. With reference to these contents, one of ordinary skill in the art will understand other possible embodiments and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are often used to represent similar components.

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

1 and 2, this embodiment provides a sequential opening injection mold, defining one end of the fixed template as the upper end, which includes A plate 10, movable push plate 30 and B plate 20 in sequence from top to bottom.

In order to realize the mold opening of the A plate 10 and the movable push plate 30 first, and then the movable push plate 30 and the B plate 20 are opened, the sequential mold opening injection mold also includes a sequential mold opening and locking mechanism.

In this embodiment, the sequential mold-opening and locking mechanism includes a latching base 3 , a latching block 4 , a latching lever 1 and a latching hook 2 , wherein the latching lever 1 is fixed to the A-board 10 . the hook 2 is fixed on the movable push plate 30 and extends downward; the latch base 4 is fixed on the B plate 30, and the latch base 3 is provided with a horizontal slide The latch block 4 is movably mounted on the latch base 3 and can slide horizontally.

A lever slot and a hook slot are vertically arranged on the detent base, and the lower ends of the detent lever 1 and the detent hook 2 are respectively inserted into the detent base 3 through the lever slot and the groove; corresponding to The position corresponding to the trigger lever 1 and the port mechanism 2 on the trigger block 4 is respectively provided with a first through slot and a second through slot, and the trigger lever 1 is inserted in the first through slot and Passing through the detent block 4, the detent hook 2 is inserted into the second through groove and protrudes out of the detent block 4, and at the same time, the end of the detent hook 2 also protrudes laterally with a barb portion, It is used for hooking on the latch block 4 to realize the locking of the movable push plate 20 and the B plate 20 .

The latching block 4 is installed in the horizontal chute in the latching base 3, and then movably mounted on the latching base 3, so as to abut against the barb portion of the mouth mechanism 2, and then lock to the latching hook The latched position on and the traversing disengagement from the barbs release the release position of the hook 2 .

In this embodiment, the working principle of the latch block 4 for locking or releasing the latch hook is:

It is defined that the direction of the locking block 4 from the release position to the locking position is the locking direction, and vice versa is the unlocking direction;

In the clamping state, the latching lever 1 is inserted into the lever groove, that is, it passes through the latching base 3 and the latching block 4 at the same time, and the latching lever 1 is also provided with the latching block to fix The interference portion at the locking position, preferably, the interference portion is a side surface of the locking lever 1 facing the locking direction, and its surface contacts and abuts on the locking block 4, and the locking block 4 is fixed on the In the locking position, the barb structure of the hook 2 is hooked on the hook block 4 to realize the locking.

The trigger lever 1 is fixed on the side of the A-board 10, and the fixed end of the trigger lever 1 is defined as the upper end. In order to unlock the trigger block 4, the lower end of the trigger lever, that is, the end, also deviates from the lock. An elbow structure 11 is formed by bending in the closing direction. In this embodiment, the elbow structure 11 is connected to the lower position of the conflicting part to realize the demoulding process. 4. Move it from the locked position to the release position to unlock.

As shown in FIG. 1, FIG. 3-FIG. 5, the sequential mold opening process of this embodiment is as follows.

In the mold clamping state shown in FIG. 1 , the contact portion of the button lever 1 and the two side walls of the elbow structure 11 are respectively in contact with the first through grooves on the button block 4 , so that the button lever 1 realizes the button The positioning of the machine block 4 ensures that the locking machine block 4 has zero movement space and achieves stable locking.

In the initial mold opening state in FIG. 3 , the elbow structure 11 of the trigger lever 1 pushes the trigger block 4 in the unlocking direction to achieve unlocking, and moves the trigger block 4 to the unlocked position; at the same time, the end of the elbow structure 11 also There is an unlocking contact portion 111 protruding away from the locking direction, and the width of the unlocking contact portion 111 and the contact portion is adapted to the width of the lever groove on the latch block 3 to ensure that the latch lever 1 interferes during the unlocking process The part interferes with the lever groove, realizes stable support for the unlocking resistance part 111, realizes strong unlocking and mold opening, and avoids problems such as deformation, which lead to failures such as unlocking failure.

At the same time, during the mold clamping process, the unlocking interference portion 111 can also abut against the wall surface of the lever groove, so as to support the interference portion and drive the latch block 4 to move to the locked position stably. An inclined guiding slope is set between the bottom end of the elbow structure 11 and the abutting portion, so as to realize the push and guidance of the clamping block 4; at the same time, when the guiding slope collides with the locking block, the unlocking interference The part 111 abuts against the wall surface of the lever groove, so as to realize stable support for the guiding inclined surface.

Combined with Figure 4 and Figure 5, after the preliminary mold opening is completed, and then in the process of further mold opening, the sequential mold opening and locking mechanism and the traditional locking mechanism have the following essential differences: After being disengaged from the latch block 4, the latch block 4 is in the unlocked position, that is, the movable push plate 30 can open the mold at any time, which greatly improves the running stability of the mold compared with the traditional normally closed locking mechanism.

At the same time, in order to ensure the stable position of the latching block 4, a reset member 5 is also provided on the latching base, and the reset member 5 is set at a position where a force away from the locking direction is applied to the latching block 4, so as to release the mold after opening. The locking block 4 is fixed in the unlocked position.

In this embodiment, the reset member 5 is preferably a compression spring, and the compression spring is installed in reverse, that is, one end is in contact with the buckle block 4, and the other end is in contact with the buckle base 3, and is arranged on the buckle The machine block 4 exerts a force position that makes it move from the locked position to the release position, to ensure that the lock machine block 4 does not retreat under the action of the spring, and at the same time, leave an active space for the lock machine block 4, and the movable push plate 30 can be adjusted at any time. The mold needs to move at any time.

Of course, in other specific embodiments, the unlocking action can also be realized by the reset member 5, that is, a compression spring, or the reset member 5 can also adopt other methods, such as gravity self-suspension, elastic buckle structure, oil cylinder or electromagnet etc., as long as the trigger block 4 can be fixed in the unlocked position.

Although the present invention has been particularly shown and described in connection with preferred embodiments, it will be understood by those skilled in the art that changes in form and detail may be made to the present invention without departing from the spirit and scope of the invention as defined by the appended claims. Various changes are made within the protection scope of the present invention.

Claims (8)

1. A sequential mold-opening locking mechanism, comprising a buckle base, a buckle block, a buckle lever and a buckle hook, the buckle block is movably installed on the buckle base so as to be locked on the buckle hook the locking position on and the release position for releasing the hook; It is characterized by: Define the locking direction from the release position to the locking position of the locking block; A lever groove is provided on the latching base, the latching lever is inserted into the lever groove, and the latching lever is also provided with a contact portion for fixing the latching block in the locking position; The end of the trigger lever is also bent away from the locking direction to form an elbow structure. 2 . The sequential die-opening locking mechanism according to claim 1 , wherein the fixed end of the locking lever is defined as the upper end, and the abutting portion is a side surface of the locking lever facing the locking direction. 3 . , the elbow structure is connected below the interference portion. 3 . The sequential die-opening locking mechanism according to claim 2 , wherein the locking block is provided with a first through groove, and the locking lever is inserted into the first through groove; the elbow The end of the structure is also provided with an unlocking interference portion protruding away from the locking direction. 4. The sequential die-opening locking mechanism according to claim 3, wherein an inclined guiding slope is provided between the bottom end of the elbow structure and the conflicting portion; The unlocking interference portion and the width of the interference portion are adapted to the width of the lever groove, and the unlocking interference portion abuts against the wall surface of the lever groove at the position where the guiding inclined surface abuts the latch block. 5 . The sequential mold opening and locking mechanism according to claim 1 , wherein a second through groove is formed on the locking block, and the locking hook is inserted into the second through groove and protrudes out of the second through groove. 6 . A hook block, the end of the hook is provided with a barb part for hooking on the hook. 6. The sequential mold opening and locking mechanism according to any one of claims 1 to 5, wherein a reset piece is further provided on the catcher base, and the reset piece is arranged to apply a deviation to the catcher block. The force position in the locking direction. 7 . The sequential die-opening locking mechanism according to claim 6 , wherein the reset member is an elastic member, one end of the elastic member is in contact with the latching block, and the other end is in contact with the latching base, 8 . Then, a force is applied to the locking block to move it from the locking position to the releasing position. 8. A sequential mold opening injection mold is characterized in that, from top to bottom, it includes A plate, movable push plate and B plate in turn, and it is characterized in that: it also includes the sequential opening according to any one of claims 1-7. Die locking mechanism; the locking lever is fixed on the A plate, the locking hook is fixed on the movable push plate; the locking block is movably installed on the locking base, and the locking base is fixed on the B plate; both the button lever and the button hook are inserted into the button seat, and in the clamping state, the button lever is in contact with the button block, so that the button block is fixed on the lock combined location.

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