Inner sliding block structure for inverted buckling of inner cavity

Abstract

The utility model discloses an inner slide block structure for inner cavity back-off, which comprises an inner cavity insert, a slide block, a shifting block and a spring, a movable cavity is arranged in the inner cavity insert, the slide block is in sliding connection with a lower die, the shifting block is arranged on an upper die, when the upper die and the lower die are closed, the shifting block drives the slide block to move horizontally, and the spring acts on the slide block and the lower die. Leftward driving force is provided for the sliding block through the spring, and the sliding block is provided with a feature part used for forming an inverted buckling structure. The die is simple and stable in structure, the die structure is simple, production is safe, and the product yield is greatly improved. And the device is small in size and suitable for a mold with a narrower structure. In addition, a sliding block structure is adopted, and the sliding block can move through matching of the inclined surfaces of the shifting blocks and mold opening. The spring is particularly arranged to provide horizontal thrust for the sliding block, and it is guaranteed that after the shifting block is separated from the sliding block, the driving groove of the sliding block and the shifting block are located at the corresponding positions all the time.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold field especially the appearance red is used to the inner slide block structure of cavity undercatch. BACKGROUND

[0002] The tail light body of general car lamp product exists buckle on the concave cavity side wall, usually adopts inclined ejection structure, but the inclined ejection stability is poor, and the cost is high, is not favorable to the stable production of mould, as shown in the figure, it is product structure schematic diagram, it can be seen that the inner cavity structure is small, and the buckle is arranged on the side wall of the inner cavity, when the space distance is limited, the inclined ejection structure cannot be used. SUMMARY

[0003] In view of the defects of the prior art, the main purpose of the utility model is to overcome the defects of the prior art, disclose a kind of inner slide block structure for cavity undercatch, including inner cavity insert, slider, push block and spring, the movable cavity is arranged in the inner cavity insert, the slider is slidably connected with lower mould, the push block is arranged in upper mould, when the upper mould and the lower mould are closed, the push block drives the slider to move horizontally, the spring acts on the slider and the lower mould, the slider is provided with the driving force to the left by the spring, the slider is provided with the feature part for forming undercatch structure.

[0004] Further, the slider is provided with guide portion on both sides, and the pressing strip is fixed on the lower mould, the pressing strip and the lower mould form guide groove matched with the guide portion.

[0005] Further, the lower mould is provided with wear plate, and the lower surface of the slider acts on the wear plate.

[0006] Further, the slider is recessed with driving groove, and the push block is matched with the driving groove through inclined surface.

[0007] Further, the first inclined surface and the second inclined surface are arranged in parallel in the driving groove, and the push block is provided with

[0008] The utility model obtains the beneficial effect:

[0009] The utility model has the advantages of simple structure, stable structure, simple mould structure, safe production and greatly improved product yield. It is small in size and suitable for the mould of relatively narrow structure. In addition, the slider structure is adopted, the push block is matched through inclined surface, and the movement of the slider is realized through mold opening. The spring is specially arranged to provide horizontal thrust for the slider, so that the driving groove of the slider and the push block are always in corresponding position after the push block and the slider are separated. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is product structure schematic diagram;

[0011] Figure 2 A use state diagram of the inner sliding block structure for the inner cavity reverse buckle;

[0012] Figure 3 For Figure 2 A zoomed view of the middle A;

[0013] Figure 4 A perspective structural schematic view of the inner sliding block structure for the inner cavity reverse buckle;

[0014] Figure 5 A sectional view of the inner sliding block structure for the inner cavity reverse buckle;

[0015] Figure 6 A perspective structural schematic view of the sliding block;

[0016] Figure 7 A perspective structural schematic view of the pushing block;

[0017] The reference signs are as follows:

[0018] 1, inner cavity insert, 2, sliding block, 3, pushing block, 4, spring, 5, pressing strip, 6, wear plate, 8, lower mold, 11, movable cavity, 21, feature part, 22, guide part, 23, driving groove, 231, first inclined surface, 232, second inclined surface, 31, third inclined surface, 32, fourth inclined surface. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model will be further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0020] An inner sliding block structure for an inner cavity reverse buckle, as shown in Figures 1-7 , comprises an inner cavity insert 1, a sliding block 2, a pushing block 3 and a spring 4, the inner cavity insert 1 is provided with a movable cavity 11, the sliding block 2 is slidingly connected with a lower mold 8, the pushing block 3 is arranged on an upper mold, when the upper mold and the lower mold 8 are closed, the pushing block 3 drives the sliding block 2 to move horizontally, the spring 4 acts on the sliding block 2 and the lower mold 8, the spring 4 provides a driving force to the left for the sliding block 2, the sliding block 2 is provided with a feature part 21 for forming a reverse buckle structure. When the mold is closed, the sliding block 2 is driven to move to the right by the pushing block 3, the feature part 21 moves synchronously to the right, after being in place, the spring 4 is compressed, and at the same time, the feature part 21 protrudes from the surface of the inner cavity insert 1, thereby forming a buckle on the product. When the mold is opened, the pushing block 3 moves upward, the sliding block 2 is driven to move to the left by the driving force of the pushing block 3 and the spring 4, so that the feature part 21 is separated from the product.

[0021] In an embodiment, as Figures 1-7As shown, the slider 2 is provided with guiding portions 22 on both sides, and the pressing strip 5 is fixed on the lower die 8, and the pressing strip 5 and the lower die 8 form guiding grooves matched with the guiding portions 22, thereby guiding the horizontal movement of the slider 2.

[0022] In an embodiment, as shown in Figures 1-7 As shown, the lower die 8 is provided with a wear-resistant plate 6, and the lower surface of the slider 2 acts on the wear-resistant plate 6, thereby increasing the service life of the slider 2.

[0023] In an embodiment, as shown in Figures 1-7 As shown, the slider 2 is provided with a driving groove 23, and the driving groove 23 and the driving block 3 are matched through inclined surfaces.

[0024] In the above embodiment, as shown in Figures 1-7 As shown, the driving groove 23 is provided with a first inclined surface 231 and a second inclined surface 232, and the driving block 3 is provided with a third inclined surface 31 matched with the first inclined surface 231 and a fourth inclined surface 32 matched with the second inclined surface 232. When the mold is closed, the first inclined surface 231 acts on the third inclined surface 31 to drive the slider 2 to move to the right, and when the mold is opened, the second inclined surface 232 acts on the fourth inclined surface 32 to drive the slider 2 to move to the left. After the mold is completely opened, the driving block 3 is separated from the driving groove 23, and the spring 4 always provides a driving force to the left of the slider 2 to ensure that the slider 2 is in the mold opening position and the driving groove 23 is in position corresponding to the driving block 3. It is ensured that the driving block 3 is inserted into the driving groove 23 when the mold is closed.

[0025] In an embodiment, as shown in Figures 1-7 As shown, the slider 2 is in an L-shaped structure, thereby guiding the driving structure to the outside of the product.

[0026] The above is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; if the present application is modified or replaced without departing from the spirit and scope of the present application, it should be covered in the protection scope of the present application.

Claims

1. An inner slide structure for a cavity underfill, characterized by, The invention discloses a mould for forming a product with a reverse structure, comprising a cavity insert, a slider, a shifting block and a spring, the cavity insert is provided with a movable cavity, the slider is slidingly connected with a lower mould, the shifting block is arranged on an upper mould, when the upper mould and the lower mould are closed, the shifting block drives the slider to move horizontally, the spring acts on the slider and the lower mould, the spring provides a driving force to the left for the slider, and a feature for forming the reverse structure is arranged on the slider.

2. The inner slide structure for the inner cavity reverse-docking according to claim 1, wherein, Guide parts are protruded on both sides of the slider, and a pressing strip is fixed on the lower mould, the pressing strip and the lower mould form guide grooves matched with the guide parts.

3. The inner slide structure for the inner cavity reverse-docking according to claim 1, wherein, The lower mould is provided with a wear-resistant plate, and the lower surface of the slider acts on the wear-resistant plate.

4. The inner slide structure for the inner cavity reverse-docking according to claim 1, wherein, A driving groove is concaved on the slider, and the shifting block is matched with the driving groove through inclined surfaces.

5. The inner slide structure for the inner cavity reverse-docking according to claim 4, wherein, The driving groove is provided with parallel first and second inclined surfaces, the shifting block is provided with a third inclined surface matched with the first inclined surface and a fourth inclined surface matched with the second inclined surface.

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