CN212979120U - Demoulding mechanism and mould adopting same - Google Patents

Abstract

The utility model relates to a demoulding mechanism and a mould adopting the demoulding mechanism, the demoulding mechanism comprises an inclined supporting pin, a sliding block seat, a first sliding block, a second sliding block and a core-pulling insert, the pressing block is fixed on the upper template, the inclined supporting pin is obliquely fixed on the upper template, the sliding block seat is movably arranged in the lower template, the sliding block seat is provided with a first inclined sliding groove matched with the inclined strut pin, the first sliding block and the second sliding block are fixedly connected with the sliding block seat, the second slide block is provided with an inclined block, the core-pulling insert is movably arranged in the lower die core, the core-pulling insert is provided with a second inclined chute, when the inclined supporting pin is inserted into or pulled out of the first inclined sliding groove, the first sliding block and the second sliding block can be driven to move towards the direction close to or far away from the core-pulling insert, and meanwhile, the second sliding block drives the core-pulling insert to move towards the direction close to or far away from the upper die core. The utility model discloses retrench the structure of mould, simplified the process of drawing of patterns and compound die.

Description

Demoulding mechanism and mould adopting same

Technical Field

The utility model relates to a mould field, concretely relates to demoulding mechanism and adopt this demoulding mechanism's mould.

Background

In the application process of the die, when the rib position of the product is deep or the die opening direction is reversed, if the product is directly ejected out, the product is easy to deform, dent and other bad phenomena. At present, the method of firstly pulling core, reducing die-sticking force and then ejecting is generally adopted, so that a male die base plate needs to be additionally assembled, a core-pulling insert is fixed on the male die base plate, and the die is opened firstly to pull core and then ejected. Therefore, the male die base plate is added, so that the thickness of the die is increased, and the forming period is prolonged.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides a demoulding mechanism, on the second slider will be located to the insert of loosing core in this demoulding mechanism, utilize the motion of second slider to twitch the insert of loosing core and accomplish the action of loosing core, this demoulding mechanism has left out the public mould backing plate, has retrencied the mould structure, has shortened the shaping cycle.

The utility model discloses a solve the technical scheme that its technical problem adopted and be:

a demoulding mechanism is used in a mould, the mould comprises an upper mould component and a lower mould component, the upper mould component comprises an upper mould plate and an upper mould core fixed in the upper mould plate, the lower mould component comprises a lower mould plate and a lower mould core fixed in the lower mould plate, the demoulding mechanism comprises a diagonal bracing pin, a sliding block seat, a first sliding block, a second sliding block and a core pulling insert, the pressing block is fixed on the upper mould plate, the diagonal bracing pin is obliquely fixed on the upper mould plate, the sliding block seat is movably arranged in the lower mould plate, a first diagonal chute matched with the diagonal bracing pin is arranged on the sliding block seat, the first sliding block and the second sliding block are fixedly connected with the sliding block seat, an oblique block is arranged on the second sliding block, the core pulling insert is movably arranged in the lower mould core, a second diagonal chute is arranged on the core pulling insert, the oblique block on the second sliding block is inserted in the second diagonal chute, first slider, lower mould benevolence, the income of loosing core and go up the mould benevolence and mutually support and form the die cavity that is used for the product shaping, work as when the bracing round pin inserts first oblique spout, can drive first slider and second slider orientation and be close to the direction motion of the income of loosing core, the second slider drives the direction operation of the income of loosing core orientation near the upper mould benevolence simultaneously, works as when the bracing round pin takes first oblique spout out, can drive first slider and second slider orientation and keep away from the direction motion of the income of loosing core, the second slider drives the direction operation of the income of loosing core orientation and keeping away from the upper mould benevolence simultaneously.

Preferably, a compressing block used for compressing the slider seat is fixedly arranged on the upper template, a first wear-resisting plate is fixedly arranged on the side, close to the compressing block, of the slider seat, a second wear-resisting plate is fixedly arranged on the lower template at the lower end of the slider seat, and a limiting column is fixedly arranged on the lower template and used for limiting the sliding stroke of the slider seat.

Preferably, a protruding block is arranged at the front end of the first sliding block, the upper mold core protrudes downwards to form an upper mold core, the core-pulling insert protrudes upwards to form a lower mold core, and the protruding block, the upper mold core, the lower mold core and the lower mold core are matched with each other to form a mold cavity for molding a product.

Preferably, the inclination of the angle brace pin is consistent with the inclination of the first inclined sliding groove, the inclined block is consistent with the inclination of the second inclined sliding groove, the slider seat can slide left and right under the action of the angle brace pin, and the core-pulling insert can slide up and down under the action of the second slider.

Preferably, one end of the inclined block is fixedly connected with the second sliding block, the other end of the inclined block is fixedly provided with a horizontal block, the horizontal block and the second sliding block are arranged in parallel, a horizontal groove is formed in the lower die core, and the horizontal block is inserted into the horizontal groove.

The utility model also provides an adopt demoulding mechanism's mould, demoulding mechanism is located the mould.

Preferably, the die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper top plate and an upper die plate which are fixedly connected, the upper top plate is positioned above the upper die plate, the lower die assembly comprises a lower die plate, a lower cushion block and a lower bottom plate which are fixedly connected from top to bottom, an upper die core is fixedly arranged in the upper die plate, and a lower die core is fixedly arranged in the lower die plate.

Preferably, the bracing pin is fixed in go up roof and lower extreme and wear to establish and stretch out the cope match-plate pattern, the slider seat is located in the lower bolster, first slider and second slider are fixed respectively and are located the upper and lower both ends of slider seat, first slider is arranged in lower mould benevolence, and during the compound die the upper surface of this first slider with the lower surface of upper mould benevolence laminates each other, the lower mould benevolence is worn to locate by the second slider, and in the oblique spout of the second of going into the son of loosing core was worn to locate by the sloping block, the horizontal block was inserted and is located in the horizontal groove of lower mould benevolence.

The utility model has the advantages that: the demoulding mechanism mainly comprises an inclined supporting pin, a sliding block seat, a first sliding block, a second sliding block and a core-pulling insert, wherein the inclined supporting pin is fixed on an upper mould component, the sliding block seat is movably arranged in a lower mould plate, the core-pulling insert is movably arranged in a lower mould core, an inclined block on the second sliding block is arranged in a second inclined chute of the core-pulling insert, a product at the position of a convex block of the first sliding block forms a barb, a lower mould core at the upper end of the core-pulling insert participates in the forming of the product, when the inclined supporting pin is pulled out of the first inclined chute of the sliding block seat, the inclined supporting pin drives the first sliding block and the second sliding block to simultaneously slide leftwards, the convex block is separated from the barb of the product, and simultaneously the core-pulling insert moves downwards under the action of the inclined block of the second sliding block to separate from the product to complete the core-pulling operation, therefore, the utility model utilizes the sliding of the first sliding block and the second sliding block to simultaneously, the utility model discloses retrench the structure of mould, simplified the drawing of patterns process.

Drawings

Fig. 1 is a schematic structural view of a demolding mechanism of the present invention;

fig. 2 is a schematic structural view of the mold of the present invention;

FIG. 3 is a schematic view of the mold opening process of the present invention;

FIG. 4 is a schematic view of the state of the complete mold opening of the present invention;

FIG. 5 is a schematic view of the mold closing process of the present invention;

FIG. 6 is a schematic view of the state of the complete mold assembly before injection molding of the present invention;

in the figure: 10-inclined supporting pins, 11-pressing blocks, 12-first wear plates, 13-second wear plates, 14-limiting columns, 20-slider seats, 21-first inclined sliding grooves, 30-first sliding blocks, 31-bumps, 40-second sliding blocks, 41-inclined blocks, 42-horizontal blocks, 50-core pulling inserts, 51-second inclined sliding grooves, 61-upper top plates, 62-upper die plates, 63-upper die cores, 64-lower die cores, 65-lower die plates, 66-lower cushion blocks, 67-lower bottom plates, 68-upper die cores, 69-lower die cores, 70-die cavities and 71-products.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in fig. 1 to 6, a demolding mechanism is used in a mold, the mold includes an upper mold assembly and a lower mold assembly, the upper mold assembly includes an upper mold plate 62 and an upper mold core 63 fixed in the upper mold plate, the lower mold assembly includes a lower mold plate 65 and a lower mold core 64 fixed in the lower mold plate, the demolding mechanism includes a diagonal bracing pin 10, a slider seat 20, a first slider 30, a second slider 40 and a core pulling insert 50, the pressing block 11 is fixed on the upper mold plate 62, the diagonal bracing pin 10 is obliquely fixed on the upper mold plate 62, the slider seat 20 is movably disposed in the lower mold plate 65, the slider seat 20 is provided with a first diagonal sliding groove 21 mutually matched with the diagonal bracing pin, the first slider 30 and the second slider 40 are fixedly connected to the slider seat 20, the second slider 40 is provided with a diagonal bracing block 41, the core pulling insert 50 is movably disposed in the lower mold core 64, be equipped with the oblique spout 51 of second on the income 50 of loosing core, the sloping block 41 on the second slider is inserted in the oblique spout 51 of this second, first slider 30, lower mould benevolence 64, the income 50 of loosing core and last mould benevolence 63 cooperate each other and form the die cavity 70 that is used for the fashioned of product 71, work as when bracing round pin 10 inserts first oblique spout 21, can drive first slider 30 and second slider 40 towards the direction motion of being close to the income 50 of loosing core, and second slider 40 drives the income of loosing core towards the direction operation of being close to the upper mould benevolence simultaneously, work as when bracing round pin 10 takes first oblique spout 21 out, can drive first slider 30 and second slider 40 towards the direction motion of keeping away from the income 50 of loosing core, and second slider 40 drives the income of loosing core towards the direction operation of keeping away from upper mould benevolence 63 simultaneously.

The demoulding mechanism mainly comprises an inclined supporting pin 10, a sliding block seat 20, a first sliding block 30, a second sliding block 40 and a core-pulling insert 50, wherein the inclined supporting pin 10 is fixed on an upper mould assembly, the sliding block seat 20 and the core-pulling insert 50 are arranged on the lower mould assembly, the sliding block seat 20 is used for supporting the first sliding block 30 and the second sliding block 40, an inclined block 41 on the second sliding block 40 is arranged in a second inclined sliding groove 51 of the core-pulling insert, a convex block 31 on the first sliding block 30 and a lower mould core 69 at the upper end of the core-pulling insert participate in the forming of a product 71, the product at the convex block 31 forms a barb, when the inclined supporting pin 10 is pulled out of the first inclined sliding groove 21 of the sliding block seat, the inclined supporting pin gives component force to the sliding block seat in the horizontal direction, drives the first sliding block 30 and the second sliding block 40 to simultaneously slide leftwards, the convex block 31 gradually breaks away from the barb of the product, and simultaneously the core-pulling insert 50 moves downwards under, until slider seat 20 support by in spacing post 14, consequently, the utility model discloses an effect of bearing diagonal round pin utilizes the slip of first slider and second slider, accomplishes taking off the back-off and the operation of loosing core of mould die sinking direction of product simultaneously, accomplishes normal ejecting action at last again, and the ejecting product of thimble accomplishes the overall process of product drawing of patterns, the utility model discloses retrencied the structure of mould, simplified the process of drawing of patterns and compound die.

The upper die plate 62 is fixedly provided with a pressing block 11 for pressing the slider seat 20, the slider seat 20 is fixedly provided with a first wear-resisting plate 12 close to the pressing block 11, a lower die plate 65 at the lower end of the slider seat 20 is fixedly provided with a second wear-resisting plate 13, and the lower die plate 65 is fixedly provided with a limiting column 14 for limiting the sliding stroke of the slider seat 20. When the die is closed, the first wear-resisting plate 12 is located between the pressing block 11 and the slider seat 20, and the second wear-resisting plate 13 is located between the lower die plate 65 and the slider seat 20, so that the wear resistance of the slider seat 20 in the operation process is improved.

The front end of the first sliding block 30 is provided with a convex block 31, the upper die core 63 protrudes downwards to form an upper die core 68, the core-pulling insert 50 protrudes upwards to form a lower die core 69, and the convex block 31, the upper die core 68, the lower die core 69 and the lower die core 64 are mutually matched to form a die cavity 70 for forming a product 71. The shape of the bump 31 is used to form a barb on the product, as shown in fig. 1, S1 represents the length of the horizontal direction of the back-off, and the first slider 30 can be separated from the back-off by sliding to the left; the lower core 69 has a plurality of contact surfaces with the product, the core-pulling insert 50 can be moved downward to separate the core-pulling insert from the product, i.e. the core-pulling operation of the product is completed, the back-off and core-pulling operations can be completed simultaneously by using the slider seat, in the drawing, S0 represents the stroke of the slider seat, S2 is the core-pulling distance of the product in the mold opening direction, and S3 is the height of the active space of the core-pulling insert.

The inclination of the diagonal bracing pin 10 is the same as the inclination of the first diagonal sliding groove 21, the inclination of the inclined block 41 is the same as the inclination of the second diagonal sliding groove 51, the slider seat 20 can slide left and right under the action of the diagonal bracing pin 10, and the core back insert 50 can slide up and down under the action of the second slider 40. The inclined plane of the inclined block 41 is a functional plane during mold opening and closing, the first inclined sliding groove 21 is obliquely arranged along the vertical direction of the sliding block seat, and the second inclined sliding groove 51 is obliquely arranged along the horizontal direction of the core pulling insert, so that when the inclined supporting pin 10 is inserted into or pulled out of the first inclined sliding groove 21, a component force in the horizontal direction of the sliding block seat can be given to the sliding block seat, the sliding block seat can slide left and right in the lower template, and the first sliding block and the second sliding block are fixed on the sliding block seat, so that the first sliding block and the second sliding block can synchronously run with the sliding block seat; when the second slide block 40 moves left and right, the inclined block thereon gives a component force in the vertical direction to the core-pulling insert 50, so that the core-pulling insert moves up and down.

One end of the inclined block 41 is fixedly connected with the second sliding block, the other end is fixedly provided with a horizontal block 42, the horizontal block 42 and the second sliding block are arranged in parallel, a horizontal groove is arranged in the lower die core 64, and the horizontal block 42 is inserted into the horizontal groove. The second sliding block 40 is arranged in the lower template 65, the inclined block 42 penetrates through a second inclined sliding groove 51 of the sliding block insert, the horizontal block 42 is inserted into the horizontal groove and can slide left and right along the horizontal groove, and the horizontal block 42 and the horizontal groove are arranged to further stabilize the movement of the second sliding block 40.

As shown in fig. 2, a mold employing the above-described mold-releasing mechanism is located inside the mold. The die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper top plate 61 and an upper die plate 62 which are fixedly connected, the upper top plate 61 is positioned above the upper die plate 62, the lower die assembly comprises a lower die plate 65, a lower cushion block 66 and a lower bottom plate 67 which are fixedly connected from top to bottom, an upper die core 63 is fixedly arranged in the upper die plate 62, and a lower die core 64 is fixedly arranged in the lower die plate 65.

The angle brace pin 10 is fixed in go up roof 61 and lower extreme wear to establish and stretch out cope match-plate pattern 62, the slider seat 20 is located in the lower bolster 65, first slider 30 and second slider 40 are fixed respectively and are located the upper and lower both ends of slider seat, first slider 30 is arranged in lower mould benevolence 64, and during the compound die the upper surface of this first slider 30 with the lower surface of last mould benevolence 63 laminates each other, second slider 40 wears to locate lower mould benevolence 64, and in oblique piece 41 wears to locate the oblique spout 51 of the income of loosing core, horizontal piece 42 is inserted and is located the horizontal inslot of lower mould benevolence.

The utility model discloses an operation process: the method comprises the following steps:

the method comprises the following steps: as shown in fig. 1, the mold clamping state after injection molding is shown, where S0 is the stroke of the slider seat, S1 indicates the length of the back-off in the horizontal direction, S2 is the core pulling distance of the product in the mold opening direction, and S3 is the height of the movable space of the core pulling insert;

step two: as shown in fig. 3, in order to open the mold, the upper mold plate gradually moves upward, the slider seat 20 drives the first slider 30 and the second slider 40 to move leftward simultaneously under the action of the inclined supporting pin 10, the core back insert 50 moves downward under the action of the inclined block 41, and the inclined surface on the inclined block 41 is a functional surface in the mold opening process;

step three: as shown in fig. 4, the mold is completely opened, at this time, the inclined supporting pin on the upper mold plate has completely separated from the slider seat 20, the slider seat 20 has completed the whole stroke S0, the bump 31 on the first slider completely separates from the back-off of the product, the tripping operation is completed, the core back insert moves downward S2, the core back operation is completed, and finally, the normal ejection action is performed, and the ejector pin ejects the product 71;

step four: as shown in fig. 5, in order to perform the mold closing process, the upper mold plate 62 moves downward, the inclined strut pin 10 is inserted into the first inclined chute 21 of the slide block seat, and drives the first slide block 30 and the second slide block 40 to move rightward simultaneously, the core-pulling insert 50 moves upward under the action of the inclined block 41, and the inclined surface on the inclined block 41 is a functional surface during the mold closing process;

step five: as shown in fig. 6, in the mold clamping state before injection molding, the inclined strut pin 10 on the upper mold plate has already entered the first inclined sliding groove of the slider seat, and the first slider 30 and the core back insert 50 are also moved in place to prepare for injection molding operation.

It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (8)

1. The utility model provides a demoulding mechanism for in the mould, the mould includes mould subassembly and lower mould subassembly, it includes cope match-plate pattern (62) and is fixed in upper die benevolence (63) in this cope match-plate pattern to go up the mould subassembly, the lower mould subassembly includes lower bolster (65) and is fixed in lower mould benevolence (64) in this lower bolster, its characterized in that: demoulding mechanism includes bearing diagonal pin (10), slider seat (20), first slider (30), second slider (40) and inserts (50) of loosing core, and compact heap (11) are fixed in on cope match-plate pattern (62), bearing diagonal pin (10) are fixed in cope match-plate pattern (62) aslope, slider seat (20) are located with moving, be equipped with on this slider seat (20) and prop first oblique spout (21) of mutually supporting with the bearing diagonal pin, first slider (30) and second slider (40) connect fixedly in slider seat (20), be equipped with sloping block (41) on second slider (40), insert core (50) and locate with moving about in lower mould benevolence (64), be equipped with second oblique spout (51) on insert core (50), sloping block (41) on the second slider insert in this second oblique spout (51), first slider (30) have been established, Lower mould benevolence (64), the income of loosing core (50) and last mould benevolence (63) mutually support and form die cavity (70) that are used for product (71) fashioned, work as when bracing round pin (10) insert first oblique spout (21), can drive first slider (30) and second slider (40) orientation and be close to the direction motion of loosing core income (50), second slider (40) drive simultaneously and loose core income the direction operation of being close to last mould benevolence, work as when bracing round pin (10) take first oblique spout (21) out, can drive first slider (30) and second slider (40) orientation and keep away from the direction motion of loosing core income (50), and second slider (40) drive the direction operation of loosing core income towards keeping away from last mould benevolence (63) simultaneously.

2. The mold-releasing mechanism according to claim 1, characterized in that: the sliding block seat structure is characterized in that a pressing block (11) used for pressing the sliding block seat (20) is fixedly arranged on the upper template (62), a first wear-resisting plate (12) is fixedly arranged on the side, close to the pressing block (11), of the sliding block seat (20), a second wear-resisting plate (13) is fixedly arranged on the lower template (65) at the lower end of the sliding block seat (20), and a limiting column (14) is fixedly arranged on the lower template (65) and used for limiting the sliding stroke of the sliding block seat (20).

3. The mold-releasing mechanism according to claim 1, characterized in that: the front end of the first sliding block (30) is provided with a convex block (31), the upper die core (63) protrudes downwards to form an upper die core (68), the core-pulling insert (50) protrudes upwards to form a lower die core (69), and the convex block (31), the upper die core (68), the lower die core (69) and the lower die core (64) are matched with each other to form a die cavity (70) for forming a product (71).

4. The mold-releasing mechanism according to claim 1, characterized in that: the inclination of bracing pin (10) with the inclination of first oblique spout (21) is unanimous, sloping block (41) with the inclination of second oblique spout (51) is unanimous, under the effect of bracing pin (10) slider seat (20) can carry out the side-to-side slip, under the effect of second slider (40) the income of loosing core (50) can slide from top to bottom.

5. The mold-releasing mechanism according to claim 1, characterized in that: one end of the inclined block (41) is fixedly connected with the second sliding block, the other end of the inclined block is fixedly provided with a horizontal block (42), the horizontal block (42) and the second sliding block are arranged in parallel, a horizontal groove is formed in the lower die core (64), and the horizontal block (42) is inserted into the horizontal groove.

6. A mold using the mold-releasing mechanism of any one of claims 1 to 5, characterized in that: the demolding mechanism is positioned in the mold.

7. The mold of claim 6, wherein: including last mould subassembly and lower mould subassembly, it includes fixed connection's last roof (61) and cope match-plate pattern (62) to go up the mould subassembly, it is located the top of cope match-plate pattern (62) to go up roof (61), lower mould subassembly includes top-down fixed connection's lower bolster (65), lower bolster (66) and lower plate (67), cope match-plate pattern (62) internal fixation is equipped with upper die benevolence (63), lower bolster (65) internal fixation is equipped with lower die benevolence (64).

8. The mold of claim 7, wherein: the inclined supporting pin (10) is fixed in the upper top plate (61) and the lower end penetrate through and extend out the upper template (62), the slider seat (20) is arranged in the lower template (65), the first slider (30) and the second slider (40) are respectively fixed at the upper end and the lower end of the slider seat, the first slider (30) is arranged in the lower die core (64), the upper surface of the first slider (30) is attached to the lower surface of the upper die core (63) during die assembly, the second slider (40) penetrates through the lower die core (64), the inclined block (41) penetrates through the second inclined sliding groove (51) of the core-pulling insert, and the horizontal block (42) is inserted in the horizontal groove of the lower die core.

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