CN218857590U - Sliding block locking structure of die - Google Patents

Abstract

The utility model provides a slider locking structure of mould belongs to mould technical field. The problem of how to compromise reliability and convenience that improve the mould and use is solved. The sliding block locking structure comprises a fixing seat, a linkage rod, a guide rod, a pin shaft and a positioning hole, wherein the middle of the linkage rod is hinged to the fixing seat, two ends of the linkage rod are respectively connected with the guide rod and the pin shaft, the guide rod and the pin shaft are arranged in the fixing seat in a vertical sliding mode, the guide rod and the pin shaft can move synchronously and move in opposite directions through connection of the linkage rod, a spring is arranged between the fixing seat and the sliding block, and the upper end of the guide rod extends out of an inclined hole and can move downwards under extrusion of an inclined guide pillar. Through the design, the sliding block can be reliably locked on the fixed die through the pin shaft under the driving of the inclined guide post during die opening, the positioning and unlocking of the whole bolt are driven by the inclined guide post, no additional operation action is added, and the convenience is improved while the use reliability of the die is greatly improved.

Description

Sliding block locking structure of die

Technical Field

The utility model belongs to the technical field of the mould, a slider locking structure of mould is related to.

Background

The slide block is a mold component which can slide in a direction perpendicular to the mold opening and closing direction or at a certain angle with the mold opening and closing direction during the mold opening action of the mold. The slider is used when the product structure makes the mould can not demould normally. For example, when the side wall of a plastic product is provided with a through hole groove and a boss, the plastic product cannot be directly released from a mold, a molding part of a molding hole, the groove and the boss needs to be made to be movable, namely a slide block, also called a movable core, and a mechanism for completing the extraction and the reset of the slide block is called a core-pulling mechanism. In the manufacturing and production process of the mold, the design of the core-pulling mechanism is inevitable for many molds, and when the core-pulling mechanism is used, the mold clamping force of an injection molding machine cannot lock the slide block.

The Chinese patent document with the publication number of CN206140830U discloses a novel injection mold core-pulling slide block mechanism, which comprises a slide block insert, a spring pin, a slide block seat, a slide block pressing strip, a slide block shovel base, an inclined guide pillar, a spring pin pressing plate and a spring, wherein the spring pin is arranged in a groove inner hole of the slide block seat, the spring pin is fixed at the bottom in the groove inner hole of the slide block seat by the spring pin pressing plate and is used for placing the spring, the slide block pressing strip is fixed on a movable mold, the slide block seat slides in the slide block pressing strip in a guiding manner, the inclined guide pillar and the slide block shovel base are fixed on a fixed mold, when the mold is closed, the inclined guide pillar presses the spring pin to be contracted into the spring pin hole of the slide block seat, and after the inclined guide pillar is inserted into the slide block seat, the spring pin is reset to clamp the inclined guide pillar. The slide block shovel base is locked with the inclined plane matching surface of the slide block seat, and when the mold is opened, the slide block seat is stirred by the inclination of the inclined guide post, so that the integral slide block mechanism exits from a plastic product. The mould clamping mechanism has the advantages that the mechanism that the spring pin is matched with the slide block insert corresponds to inserts in different shapes, the slide block insert is pushed to a mould clamping position by hand, the inclined guide post is clamped by the spring pin for mould opening, and the operation is simple and rapid.

However, the core-pulling slider mechanism of the mold has the following defects: when the core-pulling slider mechanism is applied to a double-color or multi-color injection mold, after the mold is opened, the slider seat and the inclined guide post are already in a state of unlocking, namely in a state that the inclined guide post leaves the slider seat, and at the moment, the slider seat loses the limitation of the inclined guide post, so that the core-pulling slider mechanism is very easy to loosen when the mold rotates and replaces positions. In contrast, in the prior art, the slider is generally positioned by directly adopting a spring force manner, but because the spring is used as an elastic body and is easily influenced by external force, when the die rotates, components such as the slider seat and the like still overcome the elastic force of the spring to loosen under the action of rotational inertia, and finally the use reliability of the die is influenced; moreover, the positioning and unlocking operations of the existing slide block generally need to be performed manually, which causes inconvenience in use of the mold.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a slider locking structure of mould, the utility model provides a technical problem how compromise reliability and convenience that improve the mould and use.

The purpose of the utility model can be realized by the following technical proposal: a sliding block locking structure of a mold comprises a fixed mold, a movable mold, a sliding block connected to the fixed mold in a sliding mode and an inclined guide post fixed to the movable mold, wherein an inclined hole is formed in the sliding block, the inclined guide post can penetrate into the inclined hole and can stir the sliding block to slide, and the sliding block locking structure is characterized by comprising a fixed seat, a linkage rod, a guide rod, a pin shaft and a positioning hole formed in the fixed mold, the fixed seat is fixed in the sliding block, the middle of the linkage rod is hinged to the fixed seat, two ends of the linkage rod are connected with the guide rod and the pin shaft respectively, the guide rod and the pin shaft are arranged in the fixed seat in a sliding mode along the vertical direction, the guide rod and the pin shaft can move synchronously and move in opposite directions through the connection of the linkage rod, a spring enabling the pin shaft to keep a downward moving trend is arranged between the fixed seat and the sliding block, and the upper end of the guide rod extends out of the inclined hole and can move downwards under the extrusion of the inclined guide post; when the mold is in a mold closing state, the inclined guide post presses on the guide rod to enable the pin shaft to overcome the spring force and keep a lifting state; when the die is in a die opening state, the inclined guide post is separated from the guide rod, and the pin shaft is ejected out under the action of the spring force and inserted into the positioning hole.

The sliding block locking structure is mainly applied to a double-color or multi-color injection mold which needs to move or rotate when the mold is opened. Be different from and directly adopt the spring force to fix a position the slider among the prior art, the utility model discloses a slider locking structure utilizes this rigidity piece of round pin axle to fix a position the slider for the slider can be locked reliably on the cover half during the die sinking, avoids the slider to take place not hard up and influence the reliability that the mould used at the mould removal in-process with this, and whole location and unblock process are full-automatic. Specifically, the sliding block locking structure consists of a fixed seat, a linkage rod, a guide rod, a pin shaft and a positioning hole formed in the fixed die, wherein the guide rod and the pin shaft are vertically and slidably arranged in the fixed seat, the guide rod and the pin shaft are in linkage connection through the linkage rod, the middle part of the linkage rod is hinged on the fixed seat, namely the guide rod can drive the linkage rod to swing when moving downwards; meanwhile, a spring which enables the pin shaft to keep moving downwards is designed between the fixed seat and the sliding block, so that locking driving force is provided for the whole sliding locking structure; the upper end of the guide rod is designed to extend out of the inclined hole, so that the guide rod can be linked with the inclined guide post, namely the inclined guide post can extrude the guide rod to drive the guide rod to move downwards, and an unlocking driving force is provided for the whole sliding locking structure. The working principle is as follows: when the die is closed, the inclined guide post is inserted into the inclined hole and slowly extends into the inclined hole, the slide block can slowly move towards the direction of the die cavity under the stirring of the inclined guide post, in the process, the upper end of the guide rod can move downwards under the extrusion of the inclined guide post, and the guide rod and the pin shaft can synchronously move through the connection of the linkage rod and have opposite moving directions, namely, the pin shaft at the moment can correspondingly overcome the elastic force of the spring to move upwards and lift up, namely, the pin shaft at the moment can be slowly pulled out from the positioning hole to release locking, then, the inclined guide post continuously moves until the die closing is completed, namely when the die is in a die closing state, the inclined guide post can press on the guide rod to enable the pin shaft to overcome the elastic force of the spring to keep a lifting state all the time; when the mould carries out the die sinking action, oblique guide pillar can slowly withdraw from the inclined hole, and the slider can slowly move to the direction of keeping away from the die cavity under stirring of oblique guide pillar, and at this in-process, oblique guide pillar can slowly break away from until breaking away from completely with the upper end of guide arm, and when the mould was in the die sinking state, oblique guide pillar and guide arm throw off, and the round pin axle will pop out and insert again and realize the locking of opening the mould in the locating hole so this moment under the effect of spring force. Therefore, through the ingenious design of the sliding block locking structure, on one hand, the matching and positioning of the pin shaft and the fixed die positioning hole are very reliable, and the looseness is not easily generated in the moving process of the die, so that the moving of the die is not influenced, and the use reliability of the die is greatly improved; on the other hand, the original structure of the existing die, namely the inclined hole matching structure on the inclined guide pillar and the slide block, is utilized, the automatic positioning and automatic unlocking of the slide block are achieved, extra manual operation is completely not needed, and an operating mechanism is not additionally arranged, so that the using convenience of the die is improved.

In the above-mentioned slide block locking structure of the mold, a first mating groove is formed in the guide rod, a second mating groove is formed in the pin shaft, mating heads are provided at both ends of the linkage rod, the mating heads are disc-shaped or spherical, one of the mating heads is inserted into the first mating groove and can rotate relative to the first mating groove, and the other mating head is inserted into the second mating groove and can rotate relative to the second mating groove. Through the design of the matching head and the matching groove, the linkage connection of the two ends of the linkage rod and the guide rod and the pin shaft is realized, so that the guide rod and the pin shaft can convert respective vertical movement actions into the swinging actions of the linkage rod without clamping stagnation, and the use reliability of the die is further ensured.

In the slider locking structure of foretell mould, the fixing base is including being massive pedestal and apron, set up on the pedestal along vertical arrangement perpendicular groove one, along the horizontal direction horizontal groove of arranging and along vertical arrangement perpendicular groove two, perpendicular groove one and perpendicular groove two are arranged respectively at the both ends of horizontal groove, guide arm and perpendicular groove sliding fit, round pin axle and perpendicular groove two sliding fit, the middle part of gangbar articulates in the horizontal groove and both ends stretch into respectively and erect groove one and perpendicular groove two, the apron links firmly with the pedestal and covers outside perpendicular groove one, horizontal groove and perpendicular groove. Through the design, the guide rod, the linkage rod, the pin shaft and other components are integrated on the fixing seat, and the fixing seat adopts the split design of the seat body and the cover plate, so that the sliding locking structure is more compact on one hand, and the cover protection of the cover plate is realized on the other hand, thereby being beneficial to ensuring the use reliability of the structure.

In the slide block locking structure of the die, the groove walls on the two sides of the transverse groove are respectively provided with a limiting surface which is inclined and expanded outwards, the two sides of the linkage rod are provided with abutting surfaces corresponding to the limiting surfaces, and the abutting surfaces can abut against the corresponding limiting surfaces. Through the above matching design of the limiting surface and the abutting surface, the moving stroke of the guide rod and the pin shaft is limited, the phenomenon that the guide rod and the pin shaft are excessively moved and are mechanically clamped is avoided, and the use reliability of the die is improved.

In the slide block locking structure of the mold, the pin shaft comprises a columnar matching part, a mounting column positioned at the upper end of the matching part and a pin body positioned at the lower end of the matching part; the spring is sleeved on the mounting column, one end of the spring is abutted against the sliding block, and the other end of the spring is abutted against the matching part; the pin body can be matched with the positioning hole in a positioning mode. Through the design of above erection column for the spring can provide stable spring force for the round pin axle, thereby guarantees the use reliability of this structure.

In the slider locking structure of the die, the upper end of the guide rod is provided with a matching inclined plane, and the inclination angle of the matching inclined plane is consistent with that of the inclined guide post. Through the design, the contact driving of the inclined guide post and the guide rod can be smoother, and the structure is favorable for improving the use reliability.

In the slide block locking structure of the mold, the upper end surface of the guide rod and the matching inclined surface are in smooth transition. Through the design, the smoothness of contact fit of the guide rod and the inclined guide post can be improved, so that clamping stagnation or abrasion is not easy to occur between the guide rod and the inclined guide post, and the use reliability of the die is improved.

In the above-mentioned slide block locking structure of the mold, the lower surface of the slide block is provided with an installation cavity for accommodating the fixing seat, and the fixing seat is fixed in the installation cavity. Through the design of the installation cavity, the locking structure can be hidden in the sliding block, so that the interference between the structure and other parts of the die or the interference on the structure can be avoided, and the use reliability of the die is improved.

As another scheme, in the slide block locking structure of the mold, two ends of the linkage rod are respectively hinged with the guide rod and the pin shaft. Through the design, the linkage matching of the linkage rod, the guide rod and the pin shaft can be realized.

Compared with the prior art, the sliding block locking structure of the die has the following advantages:

1. this slider locking structure passes through the cooperation design of fixing base, gangbar, guide arm, round pin axle and seting up the locating hole isotructure on the cover half for the slider can be locked on the cover half reliably through the round pin axle under the drive of oblique guide pillar during the die sinking, and the location and the unblock of whole bolt all utilize oblique guide pillar drive, do not additionally increase operation structure and operation action, thereby compromise when having improved mould use reliability widely and improved the convenience that the mould used.

2. The sliding block locking structure has the advantages of reasonable design, simple and compact integral structure and low manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of the mold after opening.

Fig. 2 is a schematic structural view of the present mold when it is closed.

Fig. 3 is a schematic sectional view of the structure of the fixing seat part in the slide block locking structure.

Fig. 4 is a schematic structural view of a fixed seat part in the sliding block locking structure.

In the figure, 1, a fixed mold; 1a, positioning holes; 2. moving the mold; 3. a slider; 3a, inclined holes; 31. a mounting cavity; 4. an inclined guide post; 5. a fixed seat; 51. a base body; 511. a first vertical groove; 512. a vertical groove II; 513. a transverse groove; 5131. a limiting surface; 52. a cover plate; 6. a linkage rod; 6a, a matching head; 61. an abutting surface; 7. a guide bar; 7a, a matching groove I; 71. a mating bevel; 8. a pin shaft; 8a, a matching groove II; 81. a fitting portion; 82. mounting a column; 83. a pin body; 9. a spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Specifically, as shown in fig. 1, this mould includes cover half 1, movable mould 2, sliding connection slider 3 on cover half 1 and fixes oblique guide pillar 4 on movable mould 2, has inclined hole 3a on the slider 3, and oblique guide pillar 4 can penetrate inclined hole 3a and stir slider 3 and slide, and this slider locking structure includes fixing base 5, gangbar 6, guide arm 7, round pin axle 8 and sets up locating hole 1a on cover half 1, and the lower surface of slider 3 is equipped with the installation cavity 31 that is used for holding fixing base 5, and fixing base 5 fixes in installation cavity 31. The middle part of the linkage rod 6 is hinged with the fixed seat 5, two ends of the linkage rod 6 are respectively connected with the guide rod 7 and the pin shaft 8, the guide rod 7 and the pin shaft 8 are vertically and slidably arranged in the fixed seat 5, the guide rod 7 and the pin shaft 8 can synchronously move through the connection of the linkage rod 6, the moving directions are opposite, a spring 9 enabling the pin shaft 8 to keep a downward moving trend is arranged between the fixed seat 5 and the sliding block 3, and the upper end of the guide rod 7 extends out of the inclined hole 3a and can move downwards under the extrusion of the inclined guide post 4; when the die is in a die opening state, the inclined guide post 4 is separated from the guide rod 7, and the pin shaft 8 is ejected out under the action of the spring force and inserted into the positioning hole 1a to form locking. When the mold is in a mold clamping state, the inclined guide post 4 presses on the guide rod 7 to enable the pin 8 to keep a lifting state against the spring force to be unlocked, as shown in fig. 2.

More specifically, as shown in fig. 3 and 4, the guide bar 7 has a fitting slope 71 at the upper end, and the inclination angle of the fitting slope 71 is identical to that of the slant guide post 4. The upper end surface of the guide rod 7 is smoothly transited with the matching inclined surface 71. The guide rod 7 is further provided with a first matching groove 7a, the pin shaft 8 is provided with a second matching groove 8a, the two ends of the linkage rod 6 are provided with matching heads 6a, the matching heads 6a are disc-shaped or spherical, one of the matching heads 6a is inserted into the first matching groove 7a and can rotate relative to the first matching groove 7a, and the other matching head 6a is inserted into the second matching groove 8a and can rotate relative to the second matching groove 8 a. Or, two ends of the linkage rod 6 can be connected with the guide rod 7 and the pin shaft 8 in a hinged mode respectively.

As shown in fig. 3 and fig. 4, in this embodiment, the fixing seat 5 includes a block-shaped seat body 51 and a cover plate 52, the seat body 51 is provided with a first vertical groove 511 disposed vertically, a second horizontal groove 513 disposed horizontally, and a second vertical groove 512 disposed vertically, the first vertical groove 511 and the second vertical groove 512 are disposed at two ends of the first horizontal groove 513 respectively, the guide rod 7 is in sliding fit with the first vertical groove 511, the pin shaft 8 is in sliding fit with the second vertical groove 512, the middle portion of the linkage rod 6 is hinged in the horizontal groove 513, and two ends of the linkage rod extend into the first vertical groove 511 and the second vertical groove 512 respectively, the cover plate 52 is fixedly connected to the seat body 51 and covers the first vertical groove 511, the horizontal groove 513, and the second vertical groove 512. The groove walls on two sides of the transverse groove 513 are respectively provided with a limiting surface 5131 which is inclined and expanded outwards, two sides of the linkage rod 6 are provided with abutting surfaces 61 corresponding to the limiting surfaces 5131, and the abutting surfaces 61 can abut against the corresponding limiting surfaces 5131. The pin shaft 8 comprises a columnar matching part 81, an installation column 82 positioned at the upper end of the matching part 81 and a pin body 83 positioned at the lower end of the matching part 81; the spring 9 is sleeved on the mounting column 82, one end of the spring abuts against the sliding block 3, and the other end of the spring abuts against the matching part 81; the pin body 83 can be positioned and matched with the positioning hole 1 a.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the fixed die 1, the positioning hole 1a, the moving die 2, the sliding block 3, the inclined hole 3a, the mounting cavity 31, the inclined guide post 4, the fixed seat 5, the seat body 51, the first vertical groove 511, the second vertical groove 512, the transverse groove 513, the limiting surface 5131, the cover plate 52, the linkage rod 6, the matching head 6a, the abutting surface 61, the guide rod 7, the first matching groove 7a, the matching inclined surface 71, the pin shaft 8, the second matching groove 8a, the matching part 81, the mounting post 82, the pin body 83, the spring 9 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (9)

1. A slide block locking structure of a mold comprises a fixed mold (1), a movable mold (2), a slide block (3) connected to the fixed mold (1) in a sliding manner, and an inclined guide post (4) fixed on the movable mold (2), the slide block (3) is provided with an inclined hole (3 a), the inclined guide post (4) can penetrate into the inclined hole (3 a) and stir the slide block (3) to slide, it is characterized in that the slide block locking structure comprises a fixed seat (5), a linkage rod (6), a guide rod (7), a pin shaft (8) and a positioning hole (1 a) arranged on the fixed die (1), the fixed seat (5) is fixed in the sliding block (3), the middle part of the linkage rod (6) is hinged with the fixed seat (5), two ends of the linkage rod (6) are respectively connected with the guide rod (7) and the pin shaft (8), and the guide rod (7) and the pin shaft (8) are arranged in the fixed seat (5) in a sliding way along the vertical direction, the guide rod (7) and the pin shaft (8) can synchronously move through the connection of the linkage rod (6) and have opposite moving directions, a spring (9) which enables the pin shaft (8) to keep moving downwards is arranged between the fixed seat (5) and the sliding block (3), the upper end of the guide rod (7) extends out of the inclined hole (3 a) and can move downwards under the extrusion of the inclined guide post (4); when the die is in a die closing state, the inclined guide post (4) presses the guide rod (7) to enable the pin shaft (8) to overcome the force of the spring (9) to keep a lifting state; when the die is in a die opening state, the inclined guide post (4) is separated from the guide rod (7), and the pin shaft (8) is ejected out and inserted into the positioning hole (1 a) under the action of the spring force.

2. The slide block locking structure of a mold according to claim 1, wherein the guide bar (7) has a first engaging groove (7 a), the pin (8) has a second engaging groove (8 a), the linkage bar (6) has engaging heads (6 a) at both ends thereof, and the engaging heads (6 a) are disc-shaped or spherical, one of the engaging heads (6 a) is inserted into the first engaging groove (7 a) and can rotate with respect to the first engaging groove (7 a), and the other engaging head (6 a) is inserted into the second engaging groove (8 a) and can rotate with respect to the second engaging groove (8 a).

3. The sliding block locking structure of the die according to claim 1 or 2, wherein the fixed seat (5) comprises a block-shaped seat body (51) and a cover plate (52), the seat body (51) is provided with a first vertical groove (511) vertically arranged, a second horizontal groove (513) horizontally arranged and a second vertical groove (512) vertically arranged, the first vertical groove (511) and the second vertical groove (512) are respectively arranged at two ends of the first horizontal groove (513), the guide rod (7) is in sliding fit with the first vertical groove (511), the pin shaft (8) is in sliding fit with the second vertical groove (512), the middle part of the linkage rod (6) is hinged in the first horizontal groove (513), two ends of the linkage rod respectively extend into the first vertical groove (511) and the second vertical groove (512), and the cover plate (52) is fixedly connected with the seat body (51) and covers the first vertical groove (511), the second horizontal groove (513) and the second vertical groove (512).

4. The mold block locking structure according to claim 3, wherein the lateral groove (513) has a limiting surface (5131) which is inclined and expanded outwards on the groove wall of the lateral groove, the linkage rod (6) has an abutting surface (61) corresponding to the limiting surface (5131) on both sides, and the abutting surface (61) can abut against the corresponding limiting surface (5131).

5. The slide locking structure of a mold according to claim 1 or 2, wherein the pin (8) comprises a fitting portion (81) having a columnar shape, a mounting post (82) located at an upper end of the fitting portion (81), and a pin body (83) located at a lower end of the fitting portion (81); the spring (9) is sleeved on the mounting column (82), one end of the spring abuts against the sliding block (3), and the other end of the spring abuts against the matching part (81); the pin body (83) can be matched with the positioning hole (1 a) in a positioning mode.

6. The mold shoe lock structure according to claim 1 or 2, wherein the guide bar (7) has a fitting slope (71) at an upper end thereof, and an inclination angle of the fitting slope (71) is identical to that of the angle guide post (4).

7. The slide locking structure of a mold according to claim 6, wherein the upper end surface of the guide rod (7) is smoothly transited to the engagement slope (71).

8. The slide locking structure of a mold according to claim 1 or 2, wherein the lower surface of the slide (3) is provided with a mounting cavity (31) for accommodating the holder (5), and the holder (5) is fixed in the mounting cavity (31).

9. The slide block locking structure of a mold according to claim 1, wherein both ends of the linkage rod (6) are respectively hinged with the guide rod (7) and the pin shaft (8).

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