Multi-parting injection mold

Abstract

The utility model discloses a multi-parting injection mold which comprises a front mold and a rear mold, and the front mold is provided with a front mold glue feeding structure; the rear mold comprises a first rear mold plate, a second rear mold plate, a third rear mold plate, a fourth rear mold plate, a rear mold inclined guide column, a first rear mold sliding block, a first rear mold inner loose core, a second rear mold inner loose core, a third rear mold inner loose core and a second rear mold sliding block, and the first rear mold inner loose core and the third rear mold inner loose core are mounted on the outer side of the second rear mold inner loose core; the size of the top of the second rear mold inner loose core is smaller than that of the bottom of the second rear mold inner loose core; the second rear mold inner loose core is connected with the third rear mold plate; and the first rear mold inner loose core and the third rear mold inner loose core are fixed at the second rear mold plate. According to the internal shrinkage type multi-parting injection mold, multiple parting and multiple core pulling are performed, and the industrial problem that molding cannot be performed due to the fact that a product opening is small and the internal size is large is perfectly solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a kind of multiple parting injection mold. BACKGROUND

[0002] Cap (such as Figure 7 ) is a large batch injection production plastic piece, and there are various structural forms for different requirements of cap.

[0003] Traditional injection mold forming can only make product demolding angle in the direction of ejection, must satisfy the principle of large opening and small bottom, cannot realize the product of small mouth and large bottom, therefore, we propose a kind of multiple parting injection mold. INVENTION CONTENTS

[0004] The utility model discloses a kind of multiple parting injection mold, to solve the problem that injection mold forming in prior art can only make product demolding angle in the direction of ejection, must satisfy the principle of large opening and small bottom, cannot realize the product of small mouth and large bottom.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of multiple parting injection mold, including front mould and back mould, the front mould is equipped with front mould glue inlet structure;

[0006] The back mould includes first back mould plate, second back mould plate, third back mould plate, fourth back mould plate, back mould inclined guide pillar, first back mould sliding block, first back mould inner core-pulling, second back mould inner core-pulling, third back mould inner core-pulling and second back mould sliding block, the outside of the second back mould inner core-pulling is equipped with first back mould inner core-pulling and third back mould inner core-pulling, the size of the top of second back mould inner core-pulling is less than the size of the bottom of second back mould inner core-pulling;

[0007] Second back mould inner core-pulling is connected with third back mould plate, and first back mould inner core-pulling and third back mould inner core-pulling are fixed at second back mould plate;First back mould plate is connected with second back mould plate;

[0008] The first back mould sliding block and the second back mould sliding block are all penetrated by back mould inclined guide pillar.

[0009] Preferably, the front mould and the back mould are connected by the front mould guide sleeve and the back mould guide column;The front mould includes first front mould plate, second front mould plate and third front mould plate, and the back mould inclined guide pillar extends into the third front mould plate.

[0010] Preferably, the front mould and the back mould are connected by the front mould guide sleeve and the back mould guide column;The front mould includes first front mould plate, second front mould plate and third front mould plate, and the back mould inclined guide pillar extends into the third front mould plate.

[0011] Preferably, the front mould includes front mould internal waterway, and the back mould includes back mould internal waterway.

[0012] Preferably, the second back mold core is a hexagonal prism, the first back mold core and the third back mold core are both provided with three, and the first back mold core and the third back mold core are spaced apart, each side of the second back mold core is provided with a T-shaped groove, and the first back mold core and the third back mold core are both provided with a T-shaped block matched with the T-shaped groove.

[0013] Preferably, the second back mold core is a hexagonal prism, the first back mold core and the third back mold core are both provided with three, and the first back mold core and the third back mold core are spaced apart, each side of the second back mold core is provided with a T-shaped groove, and the first back mold core and the third back mold core are both provided with a T-shaped block matched with the T-shaped groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the inner shrinkage type multiple parting injection mold of multiple parting and multiple core pulling perfectly realizes the industry problem that products with small openings and large internal dimensions cannot be formed; more complex inner buckle type products are realized, a plurality of processes are reduced from the manufacturing point of view, production cost is saved, production efficiency is higher, the production cycle is short, product consistency is better, precision is higher, quality is more stable, overall performance is reliable, and the utility model has more market competitiveness. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0016] Figure 1 It is the structure schematic view when the utility model parts;

[0017] Figure 2 It is the structure schematic view of the utility model;

[0018] Figure 3 It is the structure schematic view of the utility model Figure 2 The structure schematic view when the front mold plate is removed;

[0019] Figure 4 It is the structure schematic view of the utility model Figure 3 The structure schematic view of the inner core pulling;

[0020] Figure 5 It is the structure schematic view of the utility model Figure 4 The structure schematic view of the inner core pulling;

[0021] Figure 6 It is the structure schematic view of the utility model Figure 5 The structure schematic view of the inner core pulling;

[0022] Figure 7 It is the structure schematic view of the utility model product.

[0023] In the figure: 1, front mold glue structure; 2, first front mold plate; 3, second front mold plate; 4, third front mold plate; 5, rear mold guide column; 6, front mold guide sleeve; 7, first rear mold plate; 8, second rear mold plate; 9, third rear mold plate; 10, fourth rear mold plate; 11, rear mold inclined guide column; 12, first rear mold sliding block; 13, first rear mold core-pulling; 14, second rear mold core-pulling; 15, third rear mold core-pulling; 16, second rear mold sliding block; 17, rear mold internal waterway; 18, front mold internal waterway; 19, guide block; 20, base. DETAILED DESCRIPTION

[0024] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0025] Please refer to Figures 1-6 In the embodiments of the present application, a multiple-parting injection mold comprises a front mold and a rear mold, the front mold comprises a front mold internal waterway 18, and the rear mold comprises a rear mold internal waterway 17; the front mold is provided with a front mold glue structure 1, plastic is injected into the mold cavity through the front mold glue structure 1, and the product is rapidly formed under the cooling action of the front mold internal waterway 18 and the rear mold internal waterway 17; when the mold starts production, plastic is injected into the mold cavity through the front mold glue structure 1, and the product is rapidly formed under the cooling action of the front mold internal waterway 18 and the rear mold internal waterway 17.

[0026] The rear mold comprises a first rear mold plate 7, a second rear mold plate 8, a third rear mold plate 9, a fourth rear mold plate 10, a rear mold inclined guide column 11, a first rear mold sliding block 12, a first rear mold core-pulling 13, a second rear mold core-pulling 14, a third rear mold core-pulling 15 and a second rear mold sliding block 16; the first rear mold core-pulling 13 and the third rear mold core-pulling 15 are installed on the outer side of the second rear mold core-pulling 14; the size of the top of the second rear mold core-pulling 14 is smaller than the size of the bottom of the second rear mold core-pulling 14, and is used for downward movement of the second rear mold core-pulling 14; the third rear mold plate 9 and the fourth rear mold plate 10 move 30 mm backward with the rear mold core-pulling 14; the first rear mold core-pulling 13 and the third rear mold core-pulling 15 shrink into the product under the driving of the second rear mold core-pulling 14.

[0027] The second back mold core 14 is connected with the third back mold plate 9, the first back mold core 13 and the third back mold core 15 are fixed at the second back mold plate 8, the first back mold plate 7 is connected with the second back mold plate 8, the first back mold slider 12 and the second back mold slider 16 are penetrated by the back mold inclined guide column 11, the third front mold plate 4 and the first back mold plate 7 are opened, and the first back mold slider 12 and the second back mold slider 16 are separated to two sides under the action of the back mold inclined guide column 11.

[0028] The front mold and the back mold are connected through cooperation of the front mold guide sleeve 6 and the back mold guide column 5, the front mold comprises the first front mold plate 2, the second front mold plate 3 and the third front mold plate 4, the back mold inclined guide column 11 extends into the third front mold plate 4, guide blocks 19 are arranged at the bottom of the third front mold plate 4 and outside the first back mold slider 12, guide blocks 19 are arranged at the bottom of the third front mold plate 4 and outside the second back mold slider 16, the third back mold plate 9 and the fourth back mold plate 10 move back 30mm with the back mold core 14, the back mold core 13 and the back mold core 15 are driven to shrink into the product interior under the action of the second back mold core 14, when reaching 30mm of the mold stroke limit, the third front mold plate 4 and the first back mold plate 7 are opened, and the first back mold slider 12 and the second back mold slider 16 are separated to two sides under the action of the back mold inclined guide column 11.

[0029] The second back mold core 14 is a hexagonal frustum, the first back mold core 13 and the third back mold core 15 are all provided with three, and the first back mold core 13 and the third back mold core 15 are arranged at intervals, T-shaped grooves are formed in each side surface of the second back mold core 14, and the first back mold core 13 and the third back mold core 15 are all provided with T-shaped blocks matched with the T-shaped grooves, the second back mold core 14 is connected with the third back mold plate 9 at the bottom, and the first back mold core 13 and the third back mold core 15 are all connected with the second back mold plate 8 through bases 20.

[0030] The working principle of the utility model is: when the mold starts production, plastic is shot into the mold cavity through the front mold glue inlet structure 1, and the product is rapidly formed under the cooling action of the front mold internal waterway 18 and the back mold internal waterway 17;

[0031] The third back mold plate 9 and the fourth back mold plate 10 move back 30mm with the back mold core 14, and the back mold core 13 and the back mold core 15 are driven to shrink into the product interior under the action of the second back mold core 14;

[0032] When reaching 30mm of the mold stroke limit, the third front mold plate 4 and the first back mold plate 7 are opened, and the first back mold slider 12 and the second back mold slider 16 are separated to two sides under the action of the back mold inclined guide column 11.

[0033] At this time all the mold action is completed, the product can be placed on the packaging operation table by the manipulator; next the mold starts to close, and the next cycle production is carried out; and the reciprocating cycle is repeated.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for those skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included within the scope of the present application.

Claims

1. A multi-shot injection mold comprising a front mold and a back mold, characterized in that: The front mold is provided with a front mold glue feeding structure (1); The rear mold comprises a first rear mold plate (7), a second rear mold plate (8), a third rear mold plate (9), a fourth rear mold plate (10), a rear mold inclined guide pillar (11), a first rear mold sliding block (12), a first rear mold inner core pulling (13), a second rear mold inner core pulling (14), a third rear mold inner core pulling (15) and a second rear mold sliding block (16), the first rear mold inner core pulling (13) and the third rear mold inner core pulling (15) are installed on the outer side of the second rear mold inner core pulling (14), and the size of the top of the second rear mold inner core pulling (14) is smaller than the size of the bottom of the second rear mold inner core pulling (14); The second rear mold inner core pulling (14) is connected with the third rear mold plate (9), and the first rear mold inner core pulling (13) and the third rear mold inner core pulling (15) are fixed at the second rear mold plate (8); the first rear mold plate (7) is connected with the second rear mold plate (8); The first rear mold sliding block (12) and the second rear mold sliding block (16) are both penetrated by the rear mold inclined guide pillar (11).

2. A multi-shot injection mold according to claim 1, characterized in that: The front mold and the rear mold are connected through the cooperation of the front mold guide sleeve (6) and the rear mold guide pillar (5); the front mold comprises a first front mold plate (2), a second front mold plate (3) and a third front mold plate (4), and the rear mold inclined guide pillar (11) extends into the third front mold plate (4).

3. A multi-shot injection mold according to claim 2, wherein: The third front mold plate (4) is provided with a guide block (19) on the outer side of the first rear mold sliding block (12) at the bottom end, and is provided with a guide block (19) on the outer side of the second rear mold sliding block (16) at the bottom end.

4. A multi-shot injection mold according to claim 1, wherein: The front mold comprises a front mold internal waterway (18), and the rear mold comprises a rear mold internal waterway (17).

5. A multi-shot injection mold according to claim 1, wherein: The second rear mold inner core pulling (14) is a hexagonal frustum, the first rear mold inner core pulling (13) and the third rear mold inner core pulling (15) are both provided with three, and the first rear mold inner core pulling (13) and the third rear mold inner core pulling (15) are arranged at intervals, each side surface of the second rear mold inner core pulling (14) is provided with a T-shaped groove, and the first rear mold inner core pulling (13) and the third rear mold inner core pulling (15) are both provided with a T-shaped block matched with the T-shaped groove.

6. A multi-shot injection mold according to claim 5, wherein: The bottom of the second rear mold inner core pulling (14) is connected with the third rear mold plate (9), and the first rear mold inner core pulling (13) and the third rear mold inner core pulling (15) are both connected with the second rear mold plate (8) through a base (20).

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