CN217704523U - Sliding block delay structure for injection mold - Google Patents

Abstract

The utility model belongs to the technical field of injection mold, a slider delay structure for injection mold is disclosed, including last mould, lower mould and curb plate, go up the top one side fixedly connected with supporting block of mould, the bottom fixedly connected with down tube of supporting block is provided with the spout on the curb plate, and symmetrical sliding connection has two sliders in the spout, and one side sliding connection relative of two sliders has oblique slider, and the slider is postponed to the outside one end fixedly connected with of oblique slider, is provided with the slant guide hole on the slider of postponing. The delayed slider and the inclined slider are driven to slide outwards by the supporting block and the inclined guide rod which are fixed at the top of the upper die, so that the two sliding buckles shrink inwards under the action of the reset spring, the demolding of notches on the side surfaces of the product is completed under the action of an external driving device, the delayed demolding of the secondary slider of the bidirectional hole positions on the side surfaces of the product is realized, and the problem that the production requirement of a complex injection molding product cannot be met by drawing the slider out at a common single time is solved.

Description

Sliding block delay structure for injection mold

Technical Field

The application relates to the technical field of injection molds, in particular to a sliding block delay structure for an injection mold.

Background

The injection molding process is that a mold cavity with the shape consistent with that of a plastic part to be produced is arranged in an injection mold, the number of the injection molds is usually two, the injection molds are arranged on an injection molding machine during injection molding, the molds are in a mold closing state before injection molding, the injection molding machine injects plastic in a molten state into the mold cavity of the molds, and after the molten plastic is cooled and formed in the molds, the injection molds are opened, so that the injection molded products can be smoothly separated. In the process of demoulding, the two butted moulds are separated from each other, namely the mould cavity is opened, the product is firstly adhered and fixed on the mould on one side, and then the ejector pin mechanism on the side mould ejects the product out to complete demoulding of the product. Most of the present plastic products are complicated in structure, the side edges of many products are provided with pits or hollow-out structures, the side-pulling mechanism is required to be arranged in a die and comprises a sliding block capable of being inserted into a die cavity, the sliding block is fixed by locking when being inserted into the die cavity, and in the process of demolding, the sliding block is driven by external oil cylinders and other driving forces to be pulled out, so that the products can be separated from the products, and the products can be smoothly pulled out. However, in order to increase the stability of the product in the demolding process and avoid the product from being directly stuck to the mold cavity of the opposite mold in the mold opening process, a technology of delaying the extraction of the slide block can be adopted, namely, the mold is opened firstly, and then the slide block is extracted.

Traditional slider postpones to take out and is mostly applicable to comparatively simple pit or hollow out construction, probably has horizontal perforation in the pit to some complicated injection moulding products on, and ordinary single is taken out the slider and can not be satisfied the production demand.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present application provides a slider delay structure for an injection mold.

The application provides a slider delays structure for injection mold adopts following technical scheme:

the utility model provides a slider delay structure for injection mold, includes mould, lower mould and curb plate, go up the top one side fixedly connected with rest pad of mould, the bottom fixedly connected with down tube of rest pad, be provided with the spout on the curb plate, symmetrical sliding connection has two thread slipping in the spout, two relative one side sliding connection of thread slipping has oblique slider, the slider is postponed to the outside one end fixedly connected with of oblique slider, be provided with the slant guide hole on the postponing slider, lie in the spout the both sides of thread slipping all are provided with reset spring, the outside of curb plate can be dismantled and be connected with the baffle, the outside fixedly connected with connecting rod of curb plate.

Furthermore, the slide fastener is C font, its with the contact side of oblique slider is the inclined plane setting, all is provided with the spacing groove on the inclined plane.

Through the technical scheme, under the support of the inclined sliding block, the inner side cross rod of the sliding buckle extends out of the side plate and is in contact with the lower die to form an inner side hole position of the injection molding part, and the outer side rod is located in the sliding groove and is propped against by the reset spring.

Furthermore, the inclined slide block is in an isosceles trapezoid shape, and limiting protrusions matched with the limiting grooves are arranged on two sides of the inclined slide block.

Through above-mentioned technical scheme, the inclined plane of slider and the thread slipping of both sides laminate mutually to one side, and when slider was located the most inboard to one side, its top and the inboard parallel and level of thread slipping when slider to one side moves to the outside, the thread slipping can be in the inside linear shrinkage gradually under reset spring's effect, spacing arch can be with spacing groove gomphosis each other for slide more level and smooth.

Furthermore, the length of the top cross rod of the slide fastener is smaller than that of the bottom cross rod.

Through above-mentioned technical scheme, improved the area of contact of hasp outside horizontal pole with the spout, prevented that it from producing stress offset when inwards contracting to slide.

Furthermore, a straight guide hole is arranged on the outer side of the delay sliding block.

Through above-mentioned technical scheme, the outside straight type guide arm of accessible carries on spacingly, guarantees delaying the steady slip of slider.

In summary, the present application includes at least one of the following advantageous technical effects:

(1) According to the mold release device, the delay sliding block and the inclined sliding block are driven to slide outwards by the supporting block and the inclined guide rod which are fixed to the top of the upper mold, so that the two sliding buckles contract inwards under the action of the reset spring, the demolding of notches on the side faces of a product is completed under the action of an external driving device, the secondary delayed demolding of the sliding block at two-way hole positions on the side faces of the product is realized, and the problem that the production requirement of complex injection molding products cannot be met by drawing the sliding block once is solved;

(2) This application uses through the combination of the C font sliding buckle that the symmetry set up and trapezoidal oblique slider, through spacing groove and spacing bellied gomphosis of each other and slip for the motion of structure is more stable and level and smooth, has improved drawing of patterns efficiency, and through the setting of dismantling of baffle, the maintenance and the change to internal components of being convenient for have improved structural stability.

Drawings

FIG. 1 is a schematic view of the present application illustrating clamping;

FIG. 2 is a schematic structural breakdown diagram of the present application;

FIG. 3 is a cross-sectional view of a slider structure of the present application.

The reference numbers in the figures illustrate:

1. an upper die; 2. a lower die; 3. a side plate; 4. a support block; 5. an oblique guide rod; 6. a chute; 7. sliding and buckling; 8. an inclined slide block; 9. a delay slider; 10. oblique guide holes; 11. a return spring; 12. a baffle plate; 13. a connecting rod; 14. a limiting groove; 15. a limiting bulge; 16. and (4) a straight guide hole.

Detailed Description

The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a slider delay structure for injection mold, including last mould 1, lower mould 2 and curb plate 3, go up top one side fixedly connected with rest block 4 of mould 1, the bottom fixedly connected with down tube of rest block 4, be provided with spout 6 on the curb plate 3, symmetrical sliding connection has two slipknots 7 in the spout 6, the relative one side sliding connection of two slipknots 7 has oblique slider 8, slider 9 is postponed to the outside one end fixedly connected with of oblique slider 8, be provided with slant guide hole 10 on the delay slider 9, lie in the both sides of slipknot 7 in the spout 6 and all be provided with reset spring 11, the outside of curb plate 3 can be dismantled and be connected with baffle 12, the outside fixedly connected with connecting rod 13 of curb plate 3.

Referring to fig. 1-3, the slide fastener 7 is C-shaped, the contact side of the slide fastener 7 with the inclined slide block 8 is an inclined plane, the inclined plane is provided with a limit groove 14, the inner lateral rod of the slide fastener 7 extends out of the side plate 3 and contacts with the lower die 2 under the support of the inclined slide block 8 to form an inner side hole site of the injection molding piece, the outer lateral rod is located in the slide groove 6 and is supported by a return spring 11, the inclined slide block 8 is isosceles trapezoid, the two sides of the inclined slide block 8 are provided with limit protrusions 15 matched with the limit grooves 14, the inclined plane of the inclined slide block 8 is attached to the slide fasteners 7 at the two sides, when the inclined slide block 8 is located at the innermost side, the top of the inclined slide block is flush with the inner side of the slide fastener 7, when the inclined slide block 8 moves towards the outer side, the slide fastener 7 can gradually contract inwards linearly under the action of the return spring 11, the limit protrusions 15 can be embedded with the limit groove 14, so that the sliding is smoother, the length of the top lateral rod of the slide fastener 7 is shorter than that the length of the bottom lateral rod is longer than the bottom lateral rod, the contact area of the outer lateral rod of the slide fastener 7 is increased, so that the contact area of the guide hole 6 is prevented from generating stress deflection when the slide block 9, the outer side, and the outer side of the guide hole can be stably and the guide rod can be smoothly slid.

The implementation principle of the sliding block delay structure for the injection mold is as follows: when demoulding is carried out, the upper die 1 moves upwards under the driving of a power system to drive the supporting block and the inclined guide rod 5 to move upwards, under the stress action of the inclined guide rod 5 and the inclined guide hole 10, the inclined guide rod 5 moves upwards to drive the delay slider 9 to move outwards and further drive the inclined slider 8 to pull out outwards, the slide fastener 7 in the sliding groove 6 is attached to two sides of the inclined slider 8 to contract linearly towards the opposite side under the elastic action of the reset spring 11, so that the limitation of the slide fastener 7 on the transverse hole position in the concave fastener of the injection molding product is removed, the connecting rod 13 and the side plate 3 are driven to move outwards under the action of an external driving device to complete demoulding of a notch on the side surface of the product, final demoulding is completed under the action of an ejection mechanism on the lower die 2, the secondary slider delayed demoulding of the bidirectional hole position on the side surface of the product is realized, the problem that the common single-time-extraction slider cannot meet the production requirement of complex injection molding products is solved, the C-shaped slide fastener 7 and the trapezoidal inclined slider 8 which are symmetrically arranged are combined, the C-shaped slide fastener 7 and the limiting bulge 15 are mutually embedded and slide, so that the movement of the structure is more stable and the smooth, the internal demoulding efficiency is improved, and the maintenance efficiency of the detachable baffle plate is improved, and the internal maintenance structure is convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (5)

1. The utility model provides a slider delay structure for injection mold, includes mould (1), lower mould (2) and curb plate (3), its characterized in that: go up top one side fixedly connected with supporting block (4) of mould (1), bottom fixedly connected with slant guide arm (5) of supporting block (4), be provided with spout (6) on curb plate (3), symmetrical sliding connection has two thread slipping (7), two in spout (6) relative one side sliding connection of thread slipping (7) has oblique slider (8), outside one end fixedly connected with of slider (8) to one side delays slider (9), be provided with slant guide hole (10) on delaying slider (9), lie in spout (6) the both sides of thread slipping (7) all are provided with reset spring (11), the outside of curb plate (3) can be dismantled and be connected with baffle (12), the outside fixedly connected with connecting rod (13) of curb plate (3).

2. A slide delay structure for an injection mold as claimed in claim 1, wherein: the slide fastener (7) is C-shaped, the contact side of the slide fastener and the inclined slide block (8) is inclined, and the inclined surface is provided with a limit groove (14).

3. A slide delay structure for an injection mold as claimed in claim 1, wherein: the inclined slide block (8) is in an isosceles trapezoid shape, and two sides of the inclined slide block are provided with limiting protrusions (15) matched with the limiting grooves (14).

4. A slide delay structure for an injection mold as claimed in claim 1, wherein: the length of the top cross rod of the slide fastener (7) is less than that of the bottom cross rod.

5. A slide delay structure for an injection mold as claimed in claim 1, wherein: and a straight guide hole (16) is formed on the outer side of the delay sliding block (9).

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