CN112659491B - Multifunctional sliding block structure and injection mold thereof - Google Patents

Abstract

The present invention provides a multifunctional slider structure and an injection mold thereof. The multifunctional slider structure includes a slider, an inclined guide column and a driving device; an inclined guide hole is provided on the slider, the bottom of the inclined guide column is fixed on the fixed template, the inclined guide column is inserted into the inclined guide hole, and the driving device is used to drive the slider to slide along the inclined guide column. Compared with the prior art, the multifunctional slider structure proposed in the present invention can realize the disengagement of the buckle while ejecting the product, which can ensure product quality, improve production efficiency, and the mold structure is stable and reliable. By ensuring the synchronous action of the complex slider structure, it is stable and reliable, and the slider movement is smoother. By combining the four sliders together, the core is pulled out and the buckle is released while the product is ejected, thereby ensuring the completion of the entire core pulling action, and the product is not damaged, so as to achieve the purpose of ejecting the product while pulling the core, which is particularly suitable for deep cavity molds.

Description

Multifunctional slider structure and injection mold thereof

Technical Field

The invention relates to the technical field of injection molds, and in particular to a multifunctional slider structure and an injection mold thereof.

Background Art

The slider mechanism of the traditional injection mold can only complete a single core pulling function, and the ejection mechanism of the injection mold mainly includes an ejection system composed of an ejector pin, an inclined ejector, and a push plate. The outer barrel of the pulsator washing machine requires both slider core pulling and ejection action at the same time, and the mechanism of the traditional injection mold cannot meet the requirements.

Shenzhen Skyworth Precision Technology Co., Ltd.'s patent number: CN105397997B discloses a structure and an injection mold with ejection and core pulling functions, wherein the structure with ejection and core pulling functions includes a push rod, a push square, a slider and an inclined guide column, the push rod passes through the lower mold plate of the injection mold and is connected to the push square; the push square is used to push out the injection molded product, and the push square is concavely provided with a slide groove passing through the inner and outer sides of the push square on the upper end surface, and is provided with an avoidance hole passing through the bottom of the slide groove, the slider is adapted to be accommodated in the slide groove and can slide outward along the slide groove; the slider is provided with a core pulling hole, and the core pulling hole extends obliquely outward from the lower end surface of the slider from bottom to top to the upper end surface of the slider; the lower end of the inclined guide column is fixed to the lower mold plate, and the upper end of the inclined guide column passes through the avoidance hole and is adapted to be penetrated into the core pulling hole, and the extension direction of the inclined guide column is consistent with the extension direction of the core pulling hole.

There are many schemes for this type of mold structure, which will not be listed one by one; in summary, they all have common shortcomings: 1. The slider is designed in the push square, and the mechanical properties of the push square are poor, which is only suitable for small sliders; 2. Large sliders and heavy sliders cannot use this structure at all; 3. This structure is complex and cannot be applied to the slider structure in heavy molds.

The outer barrel of the impeller is a deep frame type with four large sliders. The four large sliders weigh 2.5 tons. If the push plate is equipped with sliders, it is easy to fall, making the mold structure unstable. In order to avoid product disengagement and ejection damage, which affects the function of the product, how to provide a mold mechanism that can not only ensure the product quality and structural characteristics, but also enable the slider to complete the core pulling and eject the product at the same time has become a major technical problem that needs to be solved urgently by technicians in this field.

Summary of the invention

In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a multifunctional slider structure, which can realize the functions of ejecting the product while disengaging the buckle.

The present invention provides a multifunctional slider structure, comprising a slider, an inclined guide column and a driving device; the slider is provided with an inclined guide hole, the bottom of the inclined guide column is fixed on a fixed template, the inclined guide column is inserted into the inclined guide hole, and the driving device is used to drive the slider to slide along the inclined guide column.

Preferably, a plurality of the sliders are provided, and two adjacent sliders are connected via a guide block, one end of the guide block is fixedly connected to one of the two sliders, and the other end of the guide block is slidably connected to the other of the two sliders.

Preferably, the slider includes a first slider, a second slider, a third slider and a fourth slider arranged in sequence, the first slider is connected to the second slider and the fourth slider respectively through two guide blocks; the third slider is connected to the second slider and the fourth slider respectively through another two guide blocks, and the four sliders are enclosed to form a cavity that can accommodate the injection molded product; a driving device is respectively provided on the first slider and the third slider, and the two driving devices respectively drive the first slider and the third slider to move while driving the second slider and the fourth slider to move synchronously through the guide blocks.

Preferably, the driving device is an oil cylinder, the oil inlets of two of the oil cylinders are connected, and the oil outlets of two of the oil cylinders are connected, so that the driving forces of the two oil cylinders are the same to ensure that the four sliders move synchronously.

Preferably, it further comprises a guide sleeve and a pressure block, wherein the guide sleeve is arranged in the inclined guide hole, and the pressure block is arranged on the sliding block, and the pressure block is used to prevent the guide sleeve from escaping from the inclined guide hole.

Preferably, finite position mesons are also provided on the inclined guide pillars.

Preferably, the slide block is provided with a profile surface matching the injection molded product.

Preferably, a plurality of collision references are provided on the surface of the slider, and the oblique guide hole is processed according to the collision references, so as to ensure the accuracy of the position, size and angle of the oblique guide hole.

The present invention also provides an injection mold, comprising the multifunctional slider structure as described above.

Preferably, a plurality of collision references are provided on the surface of the fixed template, and the mounting holes of the inclined guide columns are processed according to the collision references, so as to ensure that the positions, sizes and angles of the mounting holes of the inclined guide columns are accurate.

Compared with the prior art, the multifunctional slider structure proposed in the present invention can realize the disengagement of the buckle while ejecting the product, which can ensure the product quality, improve the production efficiency, and the mold structure is stable and reliable. By ensuring the synchronous action of the complex slider structure, it is stable and reliable, and the slider movement is smoother. By combining the four sliders together, the core is pulled out and the buckle is released while the product is ejected, so as to ensure the completion of the entire core pulling action, and the product is not dragged, so as to achieve the purpose of pulling out the core and ejecting the product at the same time. The slider structure of this scheme is particularly suitable for deep cavity molds. The products produced by this mold have a large clamping force when ejecting and demolding. Products that require slider core pulling on all sides adopt the equipotential principle to complete the slider core pulling and product ejection functions at one time. The structure is simple and easy to understand, the applicability is strong, the movement is stable and reliable, and the product quality is guaranteed. Compared with traditional molds, the present invention realizes that the complex features are not changed, and there is no need to push the plate to eject the product. The same effect is achieved by slider core pulling and ejection. The structure is stable and easy to assemble, the applicability is strong, and the product aesthetics is guaranteed.

The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in more detail below based on non-limiting examples and with reference to the accompanying drawings, in which:

FIG1 is a schematic structural diagram of a multifunctional slider structure provided by an embodiment of the present invention;

FIG2 is a schematic structural diagram of a slider provided by an embodiment of the present invention;

FIG3 is a partial cross-sectional view of a slider provided by an embodiment of the present invention;

FIG4 is a partial cross-sectional view of a slider and a cylinder provided in one embodiment of the present invention;

FIG5 is a schematic structural diagram of a multifunctional slider structure provided by another embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a fixed mold plate provided in one embodiment of the present invention.

Description of reference numerals:

1. Oblique guide column; 2. Slider; 3. Oil cylinder; 4. Oblique guide hole; 5. Guide sleeve; 6. Press block; 7. Limiting meson; 8. Fixed template; 9. Product; 10. Undercut; 11. Guide block; 21. First slider; 22. Second slider; 23. Third slider; 24. Fourth slider;

H1, H2, H3, H4, I1, I2, I3, I4, J1, J2, J3, touch number basis.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below. Based on the specific implementation methods in the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

As shown in Figures 1 to 5, the multifunctional slider 2 structure provided by the present invention includes an inclined guide column 1, a slider 2 and a driving device. Two inclined guide holes 4 are provided on the slider 2, and the two inclined guide holes 4 are parallel to each other. Correspondingly, two inclined guide columns 1 matching the two inclined guide holes 4 on the slider 2 are fixedly arranged on the fixed template 8, and the two inclined guide columns 1 are respectively inserted into the corresponding inclined guide holes 4, and the inclined guide columns 1 play a guiding role in the movement of the slider 2; a limit meson 7 is arranged on the top of the inclined guide column 1, and the limit meson 7 can play a limiting role in the movement of the slider 2. The driving device is used to drive the slider 2 to slide along the inclined guide column 1 to provide power for the slider 2 to open and close the mold; in this embodiment, the driving device is preferably a cylinder 3, and the cylinder 3 is arranged on the movable template. A plurality of sliders 2 can be provided, and a plurality of guide blocks 11 can be provided independently without being connected or interfering with each other. As shown in FIG1 , two sliders 2 are provided, and a cylinder 3 is fixed on each of the two sliders 2. The cylinder 3 is used to drive the corresponding slider 2 to slide along the corresponding inclined guide column 1; a plurality of sliders 2 can also be connected to each other through the guide block 11 to form a whole, so that all the sliders 2 can move synchronously. As shown in FIG4 , four sliders 2 are provided, namely, a first slider 21, a second slider 22, a third slider 23 and a fourth slider 24, and two adjacent sliders 2 are connected through the guide block 11, and one end of the guide block 11 is fixedly connected to one of the sliders 2, and the other end of the guide block 11 is fixedly connected to the fourth slider 2. Another slider 2 is slidably connected, for example, a horizontally placed guide block 11 is arranged between the first slider 21 and the second slider 22, one end of the guide block 11 is fixed on the first slider 21, and the other end is inserted into a horizontally extending groove on the second slider 11 to form a sliding connection with the second slider 11; a horizontally placed guide block 11 is also arranged between the second slider 22 and the third slider 23, one end of the guide block 11 is fixed on the third slider 23, and the other end is inserted into a horizontally extending groove on the second slider 11 to form a sliding connection with the second slider 11; the fourth slider 24 is connected with the first slider 21 and the third slider 23 in the same manner as described above, and will not be described here. Cylinders 3 are arranged on the corresponding first slider 21 and the third slider 23, respectively, so that when the two cylinders 3 push the first slider 21 and the third slider 23 to move along the inclined guide column 1, the second slider 22 and the fourth slider 24 can be driven to move synchronously along the corresponding inclined guide column 1 through the guide block 11; during the movement, the horizontal heights of the four sliders 2 are synchronously raised, and the four sliders 2 can move when the distance between them gradually increases. The four sliders 2 are combined together to wrap the product 9 in the middle; the oil inlets and outlets of the two oil cylinders 3 are connected together, so that the driving force of the two oil cylinders 3 is the same, further ensuring the synchronization of the movements of the four sliders 2. In this solution, by combining the four sliders 2 together, the core is pulled out and the product 9 is ejected at the same time, thereby ensuring the completion of the entire core pulling action, and the product 9 is not dragged and damaged, so as to achieve the purpose of pulling out the core and ejecting the product 9 at the same time. The slider 2 structure of this solution is particularly suitable for deep cavity molds. The product 9 produced by this mold has a large clamping force when it is ejected and demolded. The product 9 that requires the slider 2 to pull the core on all sides adopts the equipotential principle to complete the slider 2 core pulling and product 9 ejection functions at one time. The structure is simple and easy to understand, with strong applicability, stable and reliable movement, and the quality of the product 9 is guaranteed.

As shown in FIG. 3 , a guide sleeve 5 is further provided in the inclined guide hole 4, and the guide sleeve 5 serves as a guide for the inclined guide column 1 of the slider 2. In order to prevent the guide sleeve 5 from falling out of the inclined guide hole 4 when the slider 2 slides along the inclined guide column 1, a pressure block 6 is further provided on the slider 2, and the guide sleeve 5 is pressed by the pressure block 6. Specifically, for example, the pressure block 6 can be set on the inner wall of the inclined guide hole 4 and abut against the end of the guide sleeve 5.

The inclined guide column 1 and the guide sleeve 5 play a key role in the movement of the slider 2, so the position and angle requirements of the inclined guide column 1 mounting hole and the inclined guide hole 4 are higher. (As shown in Figure 6) Each group of inclined guide column 1 holes are first processed on the fixed template 8 with the number of collision datums H1, H2, H3, H4, I1, I2, I3, and I4, and then tested after processing. The accuracy of the control datum is plus or minus 0.01mm. After passing the test, the corresponding number of collision datums are used to process the inclined guide column 1 mounting hole to ensure that the position, size, and angle of the inclined guide column 1 mounting hole are accurate. The processing requirements of the guide sleeve 5 hole are (as shown in Figure 2) firstly process the number of collision datums J1, J2, and J3 on the slider 2, and then tested after processing. The accuracy of the control datum is plus or minus 0.01mm. After passing the test, the corresponding number of collision datums are used to process the inclined guide hole 4 to ensure that the position, size, and angle of the inclined guide hole 4 are accurate. The position and angle accuracy of the inclined guide column 1 and the guide sleeve 5 are controlled to ensure the stable movement of the slider 2.

The multifunctional slider 2 provided by the present invention can be applied to an injection mold. During demoulding, the oil cylinder 3 drives the slider 2 to move obliquely upward along the oblique guide column 1 (the direction of movement of the oil cylinder in FIG. 3 ), and the core pulling and release are completed when the slider 2 reaches the position of the limit meson 7. When the slider 2 moves, it contacts the undercut 10 of the product 9, so that the slider 2 moves upward with the product 9 (the direction of movement of the product in FIG. 3 ), and is ejected together. During reset, the oil cylinder 3 drives the slider 2 in the reverse direction to return to the initial state, and the slider 2 is reset, and the movable and fixed molds begin to close the mold for the next injection molding.

Finally, it should be noted that the above implementation modes and examples are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above implementation modes and examples, those skilled in the art should understand that they can still modify the technical solutions described in the above implementation modes or examples, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the implementation modes or examples of the present invention.

Claims (8)

1. A multifunctional slider structure, characterized in that it comprises a slider, an inclined guide column and a driving device; the slider is provided with an inclined guide hole, the bottom of the inclined guide column is fixed on a fixed template, the inclined guide column is inserted into the inclined guide hole, and the driving device is used to drive the slider to slide along the inclined guide column. The sliders are provided in plurality, and two adjacent sliders are connected by a guide block, one end of the guide block is fixedly connected to one of the two sliders, and the other end of the guide block is slidably connected to the other of the two sliders. The slider includes a first slider, a second slider, a third slider and a fourth slider arranged in sequence, the first slider is connected to the second slider and the fourth slider respectively through two guide blocks; the third slider is connected to the second slider and the fourth slider respectively through another two guide blocks, and the four sliders are enclosed to form a cavity that can accommodate the injection molded product; a driving device is respectively arranged on the first slider and the third slider, and the two driving devices respectively drive the first slider and the third slider to move, and at the same time drive the second slider and the fourth slider to move synchronously through the guide blocks. 2. The multifunctional slider structure according to claim 1 is characterized in that the driving device is a cylinder, the oil inlets of the two cylinders are connected, and the oil outlets of the two cylinders are connected, so that the driving force of the two cylinders is the same to ensure that the four sliders move synchronously. 3. The multifunctional slider structure according to any one of claims 1-2 is characterized in that it also includes a guide sleeve and a pressure block, the guide sleeve is arranged in the inclined guide hole, the pressure block is arranged on the slider, and the pressure block is used to prevent the guide sleeve from escaping from the inclined guide hole. 4. The multifunctional slider structure according to any one of claims 1-2 is characterized in that a limited position meson is also provided on the inclined guide column. 5. The multifunctional slider structure according to any one of claims 1-2, characterized in that the slider is provided with a molding surface matching the injection molded product. 6. The multifunctional slider structure according to any one of claims 1-2 is characterized in that a plurality of collision number references are provided on the surface of the slider, and the inclined guide hole is processed according to the collision number references to ensure the accuracy of the position, size and angle of the inclined guide hole. 7. An injection mold, characterized by comprising a multifunctional slider structure as described in any one of claims 1 to 6. 8. The injection mold according to claim 7 is characterized in that a plurality of collision references are provided on the surface of the fixed mold plate, and the mounting holes of the inclined guide columns are processed according to the collision references to ensure that the positions, sizes and angles of the mounting holes of the inclined guide columns are accurate.