CN108372632A - The two-way oblique core drawing mechanism of asymmetric and symmetrical oblique compound core pulling mold - Google Patents

Abstract

The invention provides an asymmetric two-way oblique core-pulling mechanism, which includes sliders, sliding pins, slider inserts and core inserts arranged on both sides. The sliding pins on each side correspond to the slider inserts on the side The hole at one end of the slider and the end is movably locked on the slider, so that it can drive the slider to slide on the corresponding slider, and the other end of the slider is connected to the inner hole of the corresponding core insert Cooperate and can slide with each other, the axes of the slide block inserts on both sides are on different planes, and there is at least one pair of slide block inserts on each side, and each slide block insert forms a preset angle with the horizontal direction. The present invention also provides an asymmetric bidirectional oblique core-pulling mold, including the above-mentioned core-pulling mechanism. In the present invention, through specially designed sliders and slider inserts, the oblique slider inserts at different angles on different planes on both sides can be simultaneously driven by the sliders to pull cores. The structure is simple and the manufacture is convenient. The mechanism works reliably and can perform automatic core pulling completely.

Description

Asymmetric two-way oblique core-pulling mechanism and symmetrical oblique composite core-pulling mold

technical field

The invention relates to the technical field of moulds, in particular to an asymmetric bidirectional oblique core-pulling mechanism and an asymmetric bidirectional oblique core-pulling mould.

Background technique

Multi-directional undercuts or oblique holes often appear during the design and manufacture of parts. Since the undercut or oblique hole is at a certain angle to the mold opening direction, the workpiece generally cannot be demolded directly, and it is necessary to consider the problem of oblique core pulling when designing the mold structure.

At present, the oblique core-pulling methods for plastic molds mainly include: one is to drive the slider to pull the core through the oblique guide column; It is to make the inclined core of the fixed mold into an insert, and take it out manually after the mold is opened. Although the first two methods can achieve core pulling in structure, they are always a single core pulling. When some plastic products with special structures need to pull cores in 2-3 directions at the same time, they will not be able to achieve it, and then rework to modify Product structure, so as to realize the structural requirements of some products. The third method adopts the manual method, although the mold structure is simplified, but the labor intensity of the workers increases, the product cannot be automated, and the production efficiency is low. In particular, it is not easy to operate when multiple directions, different planes and different angles of core pulling are required on different sides of the mold.

Contents of the invention

The purpose of the present invention is to provide an asymmetric two-way oblique core-pulling mechanism and an asymmetric two-way oblique core-pulling mold to solve the problem in the existing technology that it is not easy to operate when different sides need to pull cores in multiple directions, different planes and different angles question.

In order to achieve the above object, the present invention provides an asymmetric two-way oblique core-pulling mechanism, which includes sliders, sliding pins, slider inserts and core inserts arranged on both sides, and the sliding pins on each side correspond to the Pass through the hole at one end of the slider insert on the side where it is located and movably lock the end on the slider, so that it can drive the slider insert to slide on the corresponding slider, and the slider The other end of the insert is matched with the inner hole of the corresponding core insert and can slide mutually, wherein the axes of the slide block inserts on both sides are on different planes, and the slide block inserts on each side have at least one Yes, each slider entry forms a preset angle with the horizontal direction.

Preferably, one side of the slider on each side is provided with a slanted guide post hole and is slidably fitted with a slanted guide post through the slanted guide post hole, while the other side of the slider is provided with a Sliding groove and horizontal inlet groove, the inlet groove is used to accommodate the slider inlet, the slider inlet is located at one end of the inlet groove and is provided with a positioning hole, and through the positioning hole and the setting The sliding pins in the sliding slots are mated and connected, so that the slider insert can slide relative to the sliding block along the sliding slots through the sliding pins.

Preferably, the upper and lower sides of the end where the positioning hole of the slider insert is located are respectively provided with parallel insert planes, the insert plane matches the insert groove, and the axis of the slide block insert on one side on the same level as the vertical.

Preferably, the other end of the slider insert is provided with an insert guide surface, and the insert guide surface matches the shape of the inner hole of the core insert.

Preferably, the cross-section of the entry guide surface is a circle or a regular polygon.

Preferably, the preset included angle between each slider entry and the horizontal direction is any value between 0° and 30° or 30°. The angle of the mold base plate is any value between 0 degree and 30 degree or is 30 degree.

Preferably, the preset included angle is 15 degrees.

The present invention also provides an asymmetric two-way oblique core-pulling mold, which includes the above-mentioned asymmetric two-way oblique core-pulling mechanism, and also includes a fixed mold base plate, a fixed mold plate, and a movable mold base plate, and the fixed mold plate is fixed on the On the fixed mold base plate, a fixed mold core is provided under the fixed template, and a movable mold core is provided on the movable mold base plate, and the fixed mold core and the movable mold core are matched to form a cavity. Slanted guide posts are respectively provided on both sides of the upper side, and are slidably matched with the slanted guide post holes of the sliders on both sides, so as to drive the sliders respectively arranged on the opposite sides between the fixed formwork and the movable formwork seat plate to slide freely, wherein, The core inserts are respectively fixed on both sides of the moving model core.

Preferably, the core inserts on both sides are respectively fixed on both sides of the movable mold core by insert screws.

Preferably, locking block screws are respectively provided on both sides of the fixed template above the inclined guide pillars, and locking blocks are respectively provided below the locking block screws, and the locking blocks are used to lock the block screws Under the driving, the corresponding lower inclined guide post will be locked.

The present invention uses specially designed sliders and slider inserts in the asymmetric two-way oblique core-pulling mechanism, so that the oblique slider inserts on different planes and different angles on both sides of the mechanism and the mold can be slid The core is driven by the block at the same time, which solves the problem of core pulling in multiple directions and different angles on different planes on different sides. It has a simple structure, convenient manufacture, reliable mechanism, and can completely perform automatic core pulling.

Description of drawings

Fig. 1 is a side structural view of an asymmetric two-way oblique core-pulling mechanism provided by a preferred embodiment of the present invention;

Fig. 2 is a schematic top view structural diagram of the asymmetrical bidirectional oblique core-pulling mechanism provided by the preferred embodiment;

Fig. 3 is the structural representation of the slide block that preferred embodiment provides;

Fig. 4 is a schematic structural view of the slider insert provided by the preferred embodiment;

Fig. 5 is a schematic side view of the mechanism provided by the preferred embodiment after the core is pulled;

Fig. 6 is a schematic top view structure diagram of the mechanism provided by the preferred embodiment after the core is pulled;

Fig. 7 is a schematic diagram of the structure of the asymmetrical two-way oblique core-pulling mold provided by the preferred embodiment.

Explanation of symbols: 1-locating ring; 2-fixed mold base plate; 3-fixed mold plate; 4-movable mold base plate; Fixed model core; 10-moving model core; 11-positioning block; 12-extrusion guide post; 13-template screw; 14-insert screw; 31-oblique guide post; 32-lock block screw; 33-lock block; 41 -slider; 411-insert slot; 412-sliding groove; 42-sliding pin, 43-slider insert; 431-entry plane; 432-positioning hole; 433-entry guide surface; 45-core inlay pieces; 46-slanted guide post holes.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all examples. Based on the present invention All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In order to facilitate the understanding of the embodiments of the present invention, specific embodiments will be taken as examples for further explanation below in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.

As shown in FIG. 1 , the asymmetric two-way oblique core-pulling mechanism provided in this embodiment includes a slider 41 , a sliding pin 42 , a slider insert 43 and a core insert 45 arranged asymmetrically on both sides. The slide pin 42 of every side passes through the hole of the slide block insert 43 one end of its place side and this end is movably locked on the slide block 41 of this side, so that it can drive the slide block insert 43 on the corresponding slide Slide on block 41. And the other end of each slider insert 43 cooperates with the inner hole of the corresponding core insert 45 on its side and can slide mutually. Among them, the asymmetric two-way inclined core-pulling mechanism of this embodiment is mainly used to form the asymmetrical oblique holes on both sides of the product, so at least one pair of slider inserts 43 are respectively provided on both sides, and the slider inserts on both sides The axes of the elements 43 are on different planes, and each slider element 43 forms a predetermined included angle with the horizontal direction.

Referring to Fig. 2, the asymmetric two-way oblique core-pulling mechanism of the present embodiment is provided with two pairs of slider inserts 43, and the core-pulling mechanisms are respectively arranged asymmetrically on both sides, and the corresponding two pairs of slider inserts The sub 43 is also arranged on different sides of the mechanism, that is, the mechanism structures on both sides are the same, but there is an angle between them. In conjunction with Fig. 2, the axis of the slider insert 43 on the left side and the axis of the slider insert 43 on the right are not on the same straight line, and the two form an angle with each other. Similarly, the corresponding slider 41, slide pin 42 and The core inserts 45 also form the same angle with each other, so that the core-pulling operation of multi-directions and different angles of inclined holes on different sides and different planes of the molded product can be realized. In this embodiment, the preset included angles between the two slider inserts 43 on the right and the horizontal direction in FIG. The preset included angles between the two sliders 43 on the side and the horizontal direction are respectively C and D, and they are respectively on both sides of the slider 41, wherein the values of A, B, C and D can be determined according to Need to be set to same or different.

Referring again to FIG. 1 and FIG. 2 , the two sliders 41 in this embodiment can slide relative to the movable mold seat plate 4 respectively, and the core insert 45 is fixed on the movable mold seat plate 4 by the insert screw 14 . Wherein, the sliding block 41 is provided with a sliding groove 412 perpendicular to the sliding block itself, for the two sliding block inserts 43 to slide relative to each other along the sliding groove 412 during core pulling. Since in this embodiment, the right slider insert 43 forms an angle R with the horizontal line in FIG. 1 , the inner hole of the corresponding core insert 45 is also oblique.

Referring specifically to Figures 1 and 3, one side of the slider 41 is provided with a slanted guide post hole 46 and is slidably fitted with a slanted guide post 31 (see Figure 7) through the slanted guide post hole 46, and the other side of the slider 41 One side is provided with a sliding slot 412 vertical to the slider itself and a sub-slot 411 horizontally. Wherein, the insert groove 411 is used for accommodating the slider insert 43 on the corresponding side. Referring to Fig. 4, the slider insert 43 is located at one end of the insert groove 411 and is provided with a positioning hole 432, and is connected with the sliding pin 42 provided in the sliding groove 412 through the positioning hole 432, so that the slide block insert 43 The sliding pin 42 can slide relative to the sliding block 41 along the sliding groove 412 . The other end of the slider insert 43 (that is, where the insert guide surface 433 is located) is slidingly fitted with the inner hole of the core insert 45, and the two slider inserts 43 are aligned with the horizontal direction in Fig. 2 . The included angle is preset so that the slider insert 43 is located on both sides of the cavity where the product to be formed is located, and two oblique holes can be formed respectively at the same time, and the asymmetrically arranged slider 41, slide pin 42, slider The insert 43 and the core insert 45 form the whole body of the two-way oblique core-pulling mechanism.

Wherein, each preset included angle in this embodiment can be set to any value between 0 degrees and 30 degrees according to needs, or can also be set to 30 degrees according to needs. In a further preferred embodiment, the preset included angle between each slider insert 43 and the horizontal direction can be set to 15 degrees respectively, and then the two sides of the final formed product will have two oblique angles of 30 degrees at the same time. hole. Of course, different preset included angle values can be set to different values as required, for example, one or part or all of A, B, C and D are the same or different, or one or part or all of them are set to 15 degrees. Similarly, the angle R between the axis of the slider insert 43 on the right and the movable mold seat plate 4 where it is located is also any value between 0° and 30°, or can also be set to 30° or 15° as required.

Referring again to Fig. 4, the upper and lower sides of the upper and lower sides of the end where the positioning hole 432 of the slider insert 43 provided in this embodiment are respectively provided with parallel insert planes 431, which are the same as the insert planes 431 of the slide block 41 in Fig. 3 The sub-slots 411 are matched so that the slider inserts can be opposed to the sub-slots 411 without overturning and affecting the core pulling and the like.

In addition, as shown in FIG. 4 again, the other end of the slider insert 43 in this embodiment is provided with an insert guide surface 433 , and the insert guide surface 433 matches the shape of the inner hole of the core insert 45 . In this embodiment, the cross-section of the inlet guide surface 433 is circular, and in other preferred embodiments, the cross-section of the inlet guide surface 433 can also be set as a regular polygon, ellipse or other irregular polygons as required.

After the asymmetric two-way oblique core-pulling mechanism is assembled, the core inserts 45 on both sides are respectively fixed on the movable mold seat plate 4 through the insert screws 14; the slider inserts 43 on each side are correspondingly installed on the slider 41 In the entry groove 411, the entry plane 431 cooperates with the upper and lower planes of the entry groove 411 and can slide, the sliding pin 42 passes through the sliding groove 412 vertically and interferes with the positioning hole 432; the entry guide surface 433 and the core The inner holes of the inserts 45 are matched and slidable with each other.

When the asymmetric two-way oblique core-pulling mechanism works, referring to Fig. 1 and Fig. 2, before the core-pulling, the sliders 41 on each side are in contact with the core inserts 45. One end of the cavity formed by the product is used to process two-way oblique holes on both sides. When the composite demoulding of both symmetrical sides is required after the product is formed, the two sliders 41 are respectively subjected to external force on the oblique guide post holes 46, and the sliders 41 as a whole move correspondingly to the left and right sides (that is, the outer side). Among them, the left side moves horizontally, and the right slider is affected by the track to drive the slider to move obliquely to the right. Concrete slide block 41 drives slide pin 42, and slide pin 42 drives slide block insert 43 to move outward, and slide block insert 43 extends obliquely along self guiding direction, and slide pin 42 then slides in slide groove 412. The state after the core pulling is completed is shown in Figure 5 and Figure 6. At this time, the sliders 41 on both sides are separated from the core inserts 45, and the slider inserts 43 are located in the product forming space driven by the sliders. One end of the cavity completely enters the inner hole of the corresponding core insert 45, and the asymmetric bidirectional oblique core pulling is better completed.

As shown in Figure 7, this embodiment also provides an asymmetric two-way oblique core-pulling mold, including the above-mentioned asymmetric two-way oblique core-pulling mechanism, and also includes a fixed mold base plate 2, a fixed mold plate 3, and a movable mold base plate 4. The fixed template 3 is fixed on the fixed mold base plate 2, the fixed mold core 9 is arranged under the fixed template 3, the movable mold core 10 is arranged on the movable mold base plate 4, and the fixed mold core 9 and the movable mold core 10 are matched to form Cavities, asymmetric bidirectional oblique core-pulling mechanisms are respectively arranged symmetrically on the movable mold core 10 on the movable mold seat plate 4, and the fixed mold plate 3 is correspondingly provided with an inclined guide post 31 and is slidably matched with the inclined guide post hole 46, To drive the two symmetrically arranged sliders 41 respectively arranged between the fixed template 3 and the movable mold seat plate 4 to slide freely, wherein the core inserts 45 are respectively fixed on both sides of the movable mold core 10 .

Preferably, the core inserts 45 on both sides are respectively fixed on both sides of the movable mold core 10 by insert screws 14 .

In this mould, the positioning block 11 is used for positioning between the fixed template 3 and the movable mold base plate 4, the fixed mold base plate 2 is fixedly provided with a positioning ring 1, and the fixed template 3 is fixed on the fixed mold base plate 2 by screws. Both sides on the fixed formwork 3 are located at the top of the inclined guide post 31 and are respectively provided with locking block screws 32, and the bottom of the locking block screws 32 is respectively provided with locking blocks 33, and the locking block 33 can be driven by adjusting the locking block screws 32. The inclined guide post 31 is locked. Wherein, the fixed mold seat plate 4 of the mold is supported by the support plate 5 based on the lower fixed plate 8, specifically, the fixed mold seat plate 4, the support plate 5 and the lower fixed plate 8 are connected and fixed by template screws 13 in sequence. In the middle of the support plate 5, a space for pushing out parts is formed. Specifically, the pushing out parts of the present embodiment include pushing out guide posts 12, pushing out plates 6 and pushing out fixing plates 7, and pushing out plates 6 and pushing out fixing plates 7 are in contact with each other to push out the guides. One end of column 12 is fixed on the lower fixed plate 8, and the other end links to each other with movable mold seat plate 4 after passing through push-out plate 6 and pushing out fixed plate 7.

When the mold is working, it is positioned by the positioning block 11 so that the fixed template 3 is docked with the movable mold seat plate 4, and the fixed mold core 9 and the movable mold core 10 are matched to form a cavity. At this time, the flow material is pressed into the preset flow channel for product injection molding. Forming, when the product with two-way inclined holes on both sides is solidified, when the movable mold seat plate 4 is separated from the fixed template 3, the inclined guide posts 31 on both sides will respectively drive the sliders to move to the outside of both sides, and then the non- The symmetrical two-way inclined core-pulling mechanism completes the core-pulling work of the two-way inclined holes on different planes.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any deformation or replacement made by those skilled in the art within the technical scope disclosed in the present invention shall be Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. An asymmetric two-way oblique core-pulling mechanism is characterized in that it comprises a slide block (41), a slide pin (42), a slide block insert (43) and a core insert (45) arranged on both sides, The sliding pin (42) on each side passes through the hole at one end of the sliding block insert (43) on the side correspondingly and this end is movably locked on the sliding block (41), so that it can drive the sliding block (43). The block insert (43) slides on the corresponding slide block (41), and the other end of the slide block insert (43) cooperates with the inner hole of the corresponding core insert (45) and can slide mutually , wherein the axes of the sliders (43) on both sides are on different planes, and there are at least one pair of said sliders (43) on each side, and each slider (43) is aligned with the horizontal direction form a preset angle. 2. The asymmetric two-way oblique core-pulling mechanism according to claim 1, characterized in that, one side of the slider (41) on each side is provided with an oblique guide post hole (46) and passes through the oblique guide The post hole (46) is slidingly matched with an oblique guide post (31), and the other side of the slide block (41) is provided with a slide slot (412) perpendicular to the slide block and a horizontal entry slot (411). The slot (411) is used to accommodate the slider slot (43), and the slider slot (43) is provided with a positioning hole (432) at one end of the slot (411), and passes through the slot The positioning hole (432) is mated and connected with the sliding pin (42) arranged in the sliding groove (412), so that the slider insert (43) can pass through the sliding pin (42) along the sliding groove (412). ) slides relative to the slide block (41). 3. The asymmetric two-way oblique core-pulling mechanism according to claim 2, characterized in that, the upper and lower sides of the end where the positioning hole (432) of the slider insert (43) is located are respectively provided with parallel insert planes (431), the inlet plane (431) matches the inlet groove (411), wherein the axis of the slider inlet (43) on one side is on the same horizontal plane as the vertical direction. 4. The asymmetric two-way oblique core-pulling mechanism according to claim 2, characterized in that, the other end of the slider insert (43) is provided with an insert guide surface (433), and the insert guide surface (433) matches the shape of the inner hole of the core insert (45). 5. The asymmetric two-way oblique core-pulling mechanism according to claim 4, characterized in that the section of the entry guide surface (433) is a circle or a regular polygon. 6. The asymmetric two-way oblique core-pulling mechanism according to claim 1, characterized in that the preset included angles between each slider (43) and the horizontal direction are respectively between 0° and 30° Arbitrary value or be 30 degree, wherein the angle of the axis of one side slide block entry (43) and the movable mold seat plate of place is any value between 0 degree to 30 degree or be 30 degree. 7. The asymmetric two-way oblique core-pulling mechanism according to claim 6, wherein the preset included angle is 15 degrees. 8. An asymmetric two-way oblique core-pulling die, characterized in that it comprises the asymmetric bi-directional oblique core-pulling mechanism according to any one of claims 1 to 7, and also includes a fixed mold seat plate (2), Fixed formwork (3), movable formwork seat plate (4), described fixed formwork (3) is fixed on the described fixed formwork seat plate (2), the below of described fixed formwork (3) is provided with fixed formwork core (9 ), the movable mold base plate (4) is provided with a movable mold core (10), and the fixed mold core (9) and the movable mold core (10) are matched to form a cavity, and the fixed template (3) has two The sides are respectively provided with inclined guide pillars (31) and respectively slidably matched with the described inclined guide pillar holes (46) of the sliders (41) on both sides, so as to drive the ) slide blocks (41) on opposite sides freely slide, wherein the core inserts (45) are respectively fixed on both sides in the moving mold core (10). 9. The asymmetric two-way oblique core-pulling mold according to claim 8, characterized in that, the core inserts (45) on both sides are respectively fixed on the movable mold core (45) by insert screws (14) 10) Both sides inside. 10. The asymmetric two-way oblique core-pulling mold according to claim 8, characterized in that, both sides of the fixed template (3) are respectively provided with locking blocks above the oblique guide pillars (31) Screw (32), described locking block screw (32) below is provided with locking block (33) respectively, and described locking block (33) is used for under the driving of locking block screw (32) the oblique guide post ( 31) Locked.