CN221067064U - Core-pulling assembly, core-pulling mechanism and mold - Google Patents

Abstract

The utility model discloses a core pulling assembly which comprises a sliding block, a sliding guide plate and a guide rail, wherein the sliding block is respectively connected with the sliding guide plate and the guide rail in a sliding way, the sliding guide plate is provided with a sliding rail in the Y direction, and the sliding is driven to slide and displace along the Y direction; the guide rail is arranged along the X direction, and the sliding block is slidingly displaced along the driven direction; the sliding block simultaneously slides and moves along the Y and X directions; an acute included angle is formed between the Y direction and the X direction. The utility model utilizes the synchronous sliding of the Y direction and the X direction of the core pulling mechanism to realize the improvement of the core pulling stroke into the hypotenuse of the right triangle, and compared with the traditional core pulling along the single X direction, the utility model greatly shortens the core pulling displacement stroke of the product A by utilizing the principle that the hypotenuse is larger than the right angle side, thereby simplifying the die structure, reducing the die processing cost and solving the important technical problems in the prior art.

Description

Core-pulling assembly, core-pulling mechanism and mold

Technical Field

The utility model relates to the field of injection molds, in particular to a core-pulling assembly, a core-pulling mechanism and a mold.

Background

In the process of demolding products, the injection mold usually adopts a core pulling mechanism to realize core pulling and demolding of the products, so that complete demolding of the products can be realized or a certain basis can be provided for ejection and demolding of the products. However, when the axial dimension of the product is large or the product is provided with a special structural design, the core pulling stroke of the core pulling and demolding process of the product can be greatly increased, so that the size of the mold is increased, and meanwhile, the probability of occurrence of adverse conditions such as material pulling of the product is increased.

Therefore, how to effectively solve the problem of overlong core pulling stroke of the sliding block with low cost is a technical problem to be solved by the person skilled in the art.

Disclosure of utility model

In order to solve the technical problems in the prior art, the utility model aims to provide a core pulling assembly, a core pulling mechanism and a mold.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a loose core subassembly, its includes slider, slip baffle and guide rail, wherein:

The sliding blocks are respectively connected with the sliding guide plate and the guide rail in a sliding way,

The sliding guide plate is provided with a sliding rail in the Y direction, and the sliding is driven to slide and displace along the Y direction;

The guide rail is arranged along the X direction, and the sliding block is slidingly displaced along the driven direction;

The sliding block simultaneously slides and moves along the Y and X directions;

an acute included angle is formed between the Y direction and the X direction.

Further preferred is: one end of the sliding rail is an open end so as to allow the sliding block to be separated.

Further preferred is: the sliding guide section of the sliding rail is a linear groove arranged along the Y direction.

Further preferred is: the sliding block is convexly provided with a sliding pin which stretches into the sliding rail and slides along the direction of the sliding rail.

A core pulling mechanism comprises more than two core pulling assemblies, and the more than two core pulling assemblies are connected.

The two core pulling assemblies are symmetrically distributed.

The guide rails of the two core pulling assemblies are integrally connected.

The utility model provides a mould, its includes loose core mechanism and lower module, wherein:

the core pulling mechanism is the core pulling mechanism;

The core pulling mechanism is arranged in the lower module;

The core pulling mechanism is provided with an inner core and a forming end post, and the inner core and the forming end post are respectively fixed on a sliding block of the drawing mechanism and driven by the sliding block to perform core pulling displacement.

Further preferred is: the lower module comprises a bottom plate and a core drawing plate, wherein:

The core pulling plate is provided with a core pulling abdication groove, and a guide rail in the core pulling assembly is fixed in the core pulling abdication groove;

the sliding guide plate is fixedly connected with the bottom plate.

Further preferred is: the core pulling plate is movably connected with the bottom plate, and moves in a displacement mode along with core pulling displacement of the sliding block.

After the technical scheme is adopted, compared with the background technology, the utility model has the following advantages:

The utility model utilizes the synchronous sliding of the Y direction and the X direction of the core pulling mechanism to realize the improvement of the core pulling stroke into the hypotenuse of the right triangle, and compared with the traditional core pulling along the single X direction, the utility model greatly shortens the core pulling displacement stroke of the product A by utilizing the principle that the hypotenuse is larger than the right angle side, thereby simplifying the die structure, reducing the die processing cost and solving the important technical problems in the prior art.

Drawings

FIG. 1 is a schematic perspective view of a partial structure of a mold according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a core pulling mechanism according to an embodiment of the present utility model;

FIG. 3 is an exploded view of the structure of FIG. 2;

FIG. 4 is a schematic structural view of a core-pulling step of the mold according to the embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of FIG. 4, in which the core-pulling mechanism is arranged in a core-pulling step;

Fig. 6 is a schematic diagram of a mold structure of the structure shown in fig. 5.

The reference numerals in the above description are as follows:

A. A product;

10. a bottom plate; 20. a core drawing plate;

100. A slide block; 110. a slide pin;

200. A guide rail;

300. a sliding guide plate; 310. and a guide groove.

Detailed Description

When the product has a large axial size or has a special structural design, the core pulling stroke of the product in the core pulling and demolding process can be greatly increased, so that the size of the mold is increased, and meanwhile, the probability of occurrence of adverse conditions such as material pulling of the product is increased.

The inventor aims at the technical problems, and through analyzing reasons, the inventor continuously researches and discovers a core pulling assembly which comprises a sliding block, a sliding guide plate and a guide rail, wherein:

The sliding blocks are respectively connected with the sliding guide plate and the guide rail in a sliding way,

The sliding guide plate is provided with a sliding rail in the Y direction, and the sliding is driven to slide and displace along the Y direction;

The guide rail is arranged along the X direction, and the sliding block is slidingly displaced along the driven direction;

The sliding block simultaneously slides and moves along the Y and X directions;

an acute included angle is formed between the Y direction and the X direction.

The utility model utilizes the synchronous sliding of the Y direction and the X direction of the core pulling mechanism to realize the improvement of the core pulling stroke into the hypotenuse of the right triangle, and compared with the traditional core pulling along the single X direction, the utility model greatly shortens the core pulling displacement stroke of the product A by utilizing the principle that the hypotenuse is larger than the right angle side, thereby simplifying the die structure, reducing the die processing cost and solving the important technical problems in the prior art.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that, in the present utility model, terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element of the present utility model must have a specific orientation, and thus should not be construed as limiting the present utility model.

Examples

The utility model discloses a core-pulling assembly and a core-pulling mechanism with the same, wherein the core-pulling assembly is matched by two core-pulling sliding rails arranged at an acute angle, so that the core-pulling stroke is greatly shortened, the mold opening period is shortened, and the mold processing efficiency and the product A production efficiency are improved.

As shown in fig. 2 and fig. 3, a core-pulling assembly includes a sliding guide 300, a guide rail 200 and a slider 100, wherein the sliding guide 300 is provided with a sliding rail, an included angle is formed between the sliding rail and the sliding direction of the guide rail 200, the included angle is an acute angle, and the slider 100 is slidably connected with the sliding rail of the sliding guide 300 and the guide rail 200, so as to guide the slider 100 to slide directionally. The direction of the sliding rail and the direction of the setting of the guiding rail 200 can be set according to the core pulling requirement of the actual product A, in this embodiment: as shown in fig. 3, the guide rail 200 is disposed along the X direction, the slide rail is disposed along the Y direction, and an included angle between X and Y is an acute angle.

It should be noted that: as shown in fig. 2 and 3, the direction Y described in this embodiment is a specific direction in which the slide 100 is expected to slide.

As shown in fig. 2 and 3, the sliding block 100 is provided with a sliding pin 110, and the sliding pin is slidably connected with the sliding rail; the side surface on which the sliding pin 110 is disposed is a first sliding driving surface, and the slider 100 is further provided with a second sliding driving surface, and the second sliding driving surface is provided with a sliding structure and is slidably connected with the guide rail 200. In this embodiment, the first sliding driving surface is a side surface of the sliding block 100 facing and approaching the sliding guide 300, and the second sliding driving surface is a side surface of the sliding block 100 facing and slidingly connected with the guide rail 200.

As shown in fig. 2 and fig. 3, a side surface of the guide plate of the slider 100 facing the slider 100 is provided with a groove, the groove is a chute, in this embodiment, the slide rail is the chute, and the chute is provided along the Y direction; specific: the spout is including connecting gradually and lower spacing section, slip direction section and the last spacing section of intercommunication, slip direction section is arranged in between upper and lower spacing section, go up spacing section and be along the recess section that the direction of die sinking was seted up equally, namely: the upper limit section and the lower limit section are linear grooves formed in the same direction. It should be noted that: to avoid limiting the slide 100, and even jamming the slide 100 in the mold, the groove section of the upper limit end has an open end that can slide and draw the slide 100 along the upper limit section.

As shown in fig. 2 and 3, in order to realize sliding guiding along the Y direction, the upper limit section and the lower limit section are connected and communicated through the sliding guiding section along the Y direction, and in the core pulling movement process, the sliding guiding of the combined effect of lifting and core pulling is mainly achieved. In this embodiment: the sliding guide section is a linear groove section communicated with the upper limit section and the lower limit section, and the groove section is arranged along the Y direction.

As shown in fig. 2 and 3, the sliding pin 110 of the sliding block 100 is inserted into the sliding slot and slides along the sliding slot; specific: when the core-pulling demolding of the product A is performed, the sliding pin 110 slides along the lower limit section, the sliding guide section and the upper limit section in sequence; when the die is assembled, the cost slides along the upper limit section, the sliding guide section and the lower limit section in sequence. The pin is in sliding engagement with the slot, i.e. the slider 100 is in sliding engagement with the sliding guide 300.

It should be noted that: preferably: as shown in fig. 2 and 3, the number of the sliding guides 300 is two, and the two sliding guides 300 are respectively disposed on two sides of the slider 100, namely: the sliding blocks 100 are clamped between the two sliding guide plates 300, the sliding guide plates 300 are arranged on two sides of the sliding block 100 sliding along the X direction, so that core pulling displacement of the sliding block 100 can be effectively stabilized, stable core pulling displacement is ensured, meanwhile, shaking is avoided in the core pulling process, and complete demolding of a product A is ensured.

As shown in fig. 2 and 3, the guide rail 200 is a linear guide rail 200 disposed along the X direction, the second sliding driving surface of the slider 100 is a bottom surface of the slider 100 facing the mold bottom plate 10, and the bottom surface is provided with a structure that is in sliding connection with the slide rail in a matching manner, so as to realize sliding connection with the slide rail.

It should be noted that: as shown in fig. 2 and 3, the second sliding driving surface of the slider 100 is provided with a dovetail groove, the dovetail groove is a groove similar to a T-shape, the cross section of the guide rail 200 is similar to a T-shape, and the guide rail 200 is inserted into the dovetail groove, so that the sliding connection with the slider 100 is realized, and meanwhile, the sliding connection with the slider 100 can be synchronously displaced along the Y-direction.

Preferably: referring to fig. 4, a limiting plate is further disposed on the guide rail 200, and the limiting plate is connected with the guide rail 200, and when the guide rail 200 is slidably connected with the slider 100, the limiting plate is attached to the second limiting surface of the slider 100. Detailed: the number of the limiting plates is two, and the two limiting plates are respectively arranged on two sides of the guide rail 200 to form an I-shaped structure.

As shown in fig. 2 to 4, the core back assembly is in a clamped state: the sliding block 100 is driven to perform core pulling displacement, when the sliding block 100 slides synchronously along the X direction and the Y direction in the core pulling displacement process, the sliding block 100 gradually lifts along the mold opening direction during sliding along the Y direction, and the sliding block 100 slides in the core pulling displacement direction during sliding along the X direction, so that sliding along the Y direction is completed, and core pulling action is completed.

Referring to fig. 2 to 4, a core pulling mechanism includes at least two groups of core pulling assemblies, and the two groups of core pulling assemblies are symmetrically distributed and relatively displaced.

It should be noted that: as shown in fig. 2 to fig. 4, two or more sets of guide rails 200 in the core-pulling assembly may be integrally connected together; when the guide rails 200 in two or two core pulling assemblies are designed to be spliced and connected, the two core pulling assemblies have the advantages of convenience in disassembly and assembly, convenience in replacement, low maintenance and repair cost and the like, and splicing modes can be selected from splicing, hanging, clamping, and the like; when the guide rails 200 in the core pulling assemblies are designed to be integrally connected, the sliding direction is stable, and the whole manufacturing cost of the guide rails 200 is low.

Referring to fig. 2 to 4, in this embodiment, the number of core-pulling assemblies is two, the two core-pulling assemblies are distributed along a straight line, and the two guide rails 200 are integrally connected to form a track along the X direction. Of course, when more than two core-pulling assemblies are combined, more than two guide rails 200 may be set according to the specific product a requirement, for example: equiangular distribution, etc.

As shown in fig. 2 to 4, the slide blocks 100 in the two core-pulling assemblies may be driven by a diagonal rod to perform core-pulling displacement, or may be driven by an oil cylinder to perform core-pulling displacement. Specific: the inclined rod is arranged in the slide block 100, one end of the inclined rod is connected with the upper module, and the inclined rod moves in a displacement mode along with the die opening displacement of the upper module, so that the slide block 100 is driven to slide and loose core according to a preset direction; the sliding block 100 is connected with the output end of the oil cylinder and is driven by the oil cylinder to perform sliding displacement, but it should be noted that: the driving direction of the oil cylinder is consistent with the core pulling square preset by the sliding block 100. In this embodiment, the slide block 100 is selected to be a plug-in diagonal rod, and the slide block 100 is driven to perform core pulling displacement by using the die opening movement of the diagonal rod and the upper die set, so that core pulling movement in the product A demolding process is realized; compared with the driving by an oil cylinder, the driving by the inclined rod has the characteristics of low cost, simplified die and the like.

As shown in fig. 2 to fig. 4, in the core pulling displacement process of the core pulling mechanism, the two core pulling components are symmetrically distributed, and the movement directions of the two sliding blocks 100 are different and the movement tracks along the X direction and the-X direction are opposite; when the core pulling operation of the product A is needed: the two sliding blocks 100 relatively slide to enable each sliding block 100 to synchronously lift, slide and loose core in the preset Y direction and-Y direction, so that the effect of loose core and demolding of a product A is achieved, the loose core stroke of the sliding blocks 100 is greatly reduced, the manufacturing cost of a die is reduced, and meanwhile the quality of the product A is ensured.

Referring to fig. 1 to 6, the mold with the core pulling mechanism has a partial structure of the mold as shown in fig. 1 and 6, wherein the partial structure is a lower module of the mold, and the lower module comprises a bottom plate 10, square iron, a core pulling plate 20 and the core pulling mechanism; the two square irons are symmetrically distributed and are fixed on the bottom plate 10, the two square irons are symmetrically fixed on two opposite sides of the bottom plate 10, the core pulling plate 20 is fixed on the two square irons, and the core pulling mechanism is assembled at the core pulling plate 20.

Referring to fig. 1 to 6, the core-pulling plate is a flat plate with a core-pulling relief groove, the core-pulling relief groove is a U-shaped groove with an opening facing to the upper die set, and the guide rail 200 is fixed in the core-pulling relief groove of the core-pulling plate and drives the core-pulling plate to perform core-pulling displacement along the die-opening direction.

As shown in fig. 1 to 6, the sliding guide 300 of any one of the core back assemblies is fixedly connected to the base plate 10. Specific: any one end of the core-pulling guide plate, which is close to the lower limit section, is a fixed end, the fixed end is provided with an inserting protrusion in an inserting manner, and the inserting protrusion is inserted into a positioning groove formed in the bottom plate 10, so that the sliding guide plate 300 is fixedly installed, and the sliding block 100 can slide and displace relative to the sliding guide plate 300.

As shown in fig. 1 to 6, the inner cores and the molding cores are respectively mounted on opposite sides of the two sliders 100. Specific: for convenience and accuracy in expression, two sliders 100 are respectively a first slider 100 and a second slider 100, the movement directions of the first slider 100 and the second slider 100 are opposite, an inner core is arranged on the first slider 100, and a forming core column is arranged in the second slider 100; when the mold is in a mold closing state, the inner core is inserted into the molding cavity of the product A, the end head of the molding end post is a molding end, the molding end is a part of the molding cavity, and then the injection molding glue solution can obtain the required product A when the molding cavity is cooled and molded.

As shown in fig. 1 to 6, the mold having the core-pulling mechanism needs to undergo a stage 1 (labeled 1 in the drawing), a stage 2 (labeled 2 in the drawing) and a stage 3 (labeled 3 in the drawing) as shown in fig. 4 to 6 in the process of pulling the core of the product a, and the three stages are described in order as follows:

Stage 1 is a core pulling preparation stage: the product A has completed the cooling molding process;

Stage 2 is to perform a core pulling stage: any sliding block 100 in the core pulling mechanism is driven by the inclined rod to perform core pulling sliding displacement, and at this stage, the sliding block 100 simultaneously performs lifting displacement along the Y direction and also performs core pulling displacement along the Y direction;

stage 3, to complete the core pulling stage: the slide block 100 completes core pulling sliding displacement along the direction of the slide groove, at this time, the product A has completed core pulling of the inner core, and at the same time, product A demoulding of the formed end column is completed.

With reference to fig. 1 to 6, the above mold utilizes synchronous sliding between the Y direction and the X direction set by the core pulling mechanism to improve the core pulling stroke into the hypotenuse of a right triangle, and compared with the traditional method of sliding core pulling along a single X direction, the principle that the hypotenuse is larger than the right angle side is utilized to greatly shorten the core pulling displacement stroke of the product a, thereby simplifying the mold structure, reducing the mold processing cost and solving the important technical problems in the prior art.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims (10)

1. A loose core assembly, characterized in that: it includes slider, slip baffle and guide rail, wherein:

The sliding blocks are respectively connected with the sliding guide plate and the guide rail in a sliding way,

The sliding guide plate is provided with a sliding rail in the Y direction, and the sliding is driven to slide and displace along the Y direction;

The guide rail is arranged along the X direction, and the sliding block is slidingly displaced along the driven direction;

The sliding block simultaneously slides and moves along the Y and X directions;

an acute included angle is formed between the Y direction and the X direction.

2. The core back assembly according to claim 1, wherein: one end of the sliding rail is an open end so as to allow the sliding block to be separated.

3. A core pulling assembly according to claim 2, wherein: the sliding guide section of the sliding rail is a linear groove arranged along the Y direction.

4. The core back assembly according to claim 1, wherein: the sliding block is convexly provided with a sliding pin which stretches into the sliding rail and slides along the direction of the sliding rail.

5. A mechanism of loosing core which characterized in that: comprising two or more core-pulling members according to claim 1, which are connected.

6. The core pulling mechanism according to claim 5, wherein: the two core pulling assemblies are symmetrically distributed.

7. The core pulling mechanism according to claim 6, wherein: the guide rails of the two core pulling assemblies are integrally connected.

8. A mold, characterized in that: it includes mechanism and lower module of loosing core, wherein:

The core-pulling mechanism is a core-pulling mechanism as defined in claim 5;

The core pulling mechanism is arranged in the lower module;

The core pulling mechanism is provided with an inner core and a forming end post, and the inner core and the forming end post are respectively fixed on a sliding block of the drawing mechanism and driven by the sliding block to perform core pulling displacement.

9. A mold according to claim 8, wherein: the lower module comprises a bottom plate and a core drawing plate, wherein:

The core pulling plate is provided with a core pulling abdication groove, and a guide rail in the core pulling assembly is fixed in the core pulling abdication groove;

the sliding guide plate is fixedly connected with the bottom plate.

10. A mold according to claim 9, wherein: the core pulling plate is movably connected with the bottom plate, and moves in a displacement mode along with core pulling displacement of the sliding block.