Deep-bone large-drawer type mold structure

Abstract

The utility model discloses a deep-bone large-drawer type mold structure which comprises a rear mold, a rear mold core is arranged in the middle of the rear mold, a second sliding block is arranged on one side of the rear mold core in a sliding mode, a first sliding block is connected to the side, adjacent to the second sliding block, of the rear mold in a sliding mode, an elastic part is arranged in the first sliding block, and a second sliding block is arranged in the rear mold. The mold has the beneficial effects that the strong-pull type elastic blocks are arranged at the positions, corresponding to the deep ribs, of the front mold, the rear mold is provided with a plurality of groups of large ejector blocks, and the side grid deep ribs are used for sliding block core pulling and ejector pin combined mold stripping, so that the appearance and the assembly structure of a product are not influenced, the machining amount and the difficulty of the mold are greatly simplified, and the production cost is reduced; a plurality of positions in the mold are provided with spring reset mechanisms, such as a spring between the needle plate and the bottom of the rear mold and a reset spring on the outer side of the ejector pin of the first sliding block, so that the accurate reset of the mold in the mold closing and opening processes is ensured, and the automation degree and the operation efficiency of the mold are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a deep-bone large drawer-type mold structure. Background Art

[0002] In the mold processing industry, for products with long deep-bone-shaped large drawer-type deep-cavity parts and dense grid deep bones on the side, due to the overall long deep bone and the grid deep bone buckle structure on the right side; according to the traditional processing method, the front and rear molds are shrunk and the secondary slider is added on the side. The mold is oversized and the structure is complex, which poses risks such as high processing costs and long injection molding cycles. Utility Model Content

[0003] The purpose of the present utility model is to provide a deep-bone large drawer-type mold structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a deep-bone large drawer-type mold structure, comprising:

[0005] A rear mold, wherein a rear mold core is provided in the middle of the rear mold, a second slider is slidably provided on one side of the rear mold core, a first slider is slidably connected to a side of the rear mold adjacent to the second slider, an elastic portion is provided inside the first slider, and a first slider insert is fixedly connected to the side of the first slider close to the rear mold core;

[0006] The front mold is placed above the rear mold, and a front mold core is provided at the bottom of the front mold. A front mold slider is movably installed inside the front mold core for pushing open the product to prevent it from sticking to the front mold, and an inclined guide rod for driving slider No. 1 is fixed at the bottom of the front mold core.

[0007] Preferably, the bottom of the rear mold is fixedly connected to a base, the interior of the base is slidably connected to a needle plate, the top of the needle plate is fixedly connected to a dome needle, and the top of the dome needle passes through the rear mold core and is slidably connected to the rear mold core.

[0008] Preferably, one side of the rear mold core is provided with a hole that cooperates with the No. 2 slider, the top of the No. 2 slider is provided with an inclined hole, and the bottom of the front mold core is fixed with a driving guide rod that cooperates with the inclined hole.

[0009] Preferably, the elastic part includes a No. 1 slider ejector pin fixedly connected to the side of the rear mold core, the No. 1 slider ejector pin is slidably connected to the No. 1 slider, and the outer side of the No. 1 slider ejector pin is provided with a return spring for driving the No. 1 slider away from the rear mold core.

[0010] Preferably, two rear mold top blocks are slidably connected to the middle of the rear mold core, and the bottom of the rear mold top blocks is fixedly connected to the dome pin.

[0011] Preferably, positioning rods are fixed to the four corners of the bottom of the front mold core, and the top of the rear mold is provided with positioning holes that cooperate with the positioning rods.

[0012] Preferably, a No. 2 trapezoidal positioning block is fixed to the bottom of the front mold core, a No. 1 trapezoidal positioning groove is provided on the side of the bottom of the front mold core away from the No. 2 trapezoidal positioning block, a No. 1 trapezoidal positioning block is provided on the top of the rear mold to cooperate with the No. 1 trapezoidal positioning groove, and a No. 2 trapezoidal positioning groove is provided on the top of the No. 1 slider to cooperate with the No. 2 trapezoidal positioning block.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the sliding setting of the No. 1 slider and the No. 2 slider, and the coordinated inclined guide rod and driving guide rod, ensure the accuracy and stability of the mold during the mold closing and opening process, and improve production efficiency; the elastic part arranged inside the No. 1 slider, including the No. 1 slider ejector and the return spring, can delay the action during the mold opening process, tighten the product, effectively prevent the product from sticking to the mold, and ensure the integrity and quality of the product; by arranging strong pull-type spring blocks at the corresponding deep bone positions of the front mold, making multiple groups of large ejector blocks in the rear mold, and using the side grid deep bones as slider core pulling and ejector combination demolding, not only the appearance and assembly structure of the product are not affected, but also the processing amount and difficulty of the mold are greatly simplified, and the production cost is reduced; spring return mechanisms are used in many places in the mold, such as the spring between the needle plate and the bottom of the rear mold, and the return spring outside the No. 1 slider ejector. These settings ensure the precise reset of the mold during the mold closing and opening process, and improve the degree of automation and operation efficiency of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the front mold of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the rear mold of the utility model;

[0017] Figure 4 This is an exploded view of the rear mold of the utility model;

[0018] Figure 5 This is a sequence diagram of demoulding of the utility model.

[0019] In the figure: 1. Front mold core; 2. Rear mold; 3. Base; 4. Needle plate; 5. Dome pin; 6. Trapezoidal positioning block No. 1; 7. Trapezoidal positioning groove No. 1; 8. Trapezoidal positioning block No. 2; 9. Trapezoidal positioning groove No. 2; 10. Inclined guide rod; 11. Positioning rod; 12. Front mold slider; 13. Slider No. 2; 14. Driving guide rod; 15. Slider No. 1; 16. Slider insert No. 1; 17. Rear mold ejector block; 18. Slider ejector pin No. 1; 19. Return spring; 20. Rear mold core. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 、 2 As shown in Figures 3, 4 and 5, the utility model provides a technical solution: a deep-bone large drawer-type mold structure, comprising: a rear mold 2, a rear mold core 20 is fixedly connected to the middle part of the rear mold 2 by bolts, a No. 2 slider 13 is slidably provided on one side of the rear mold core 20, and a No. 1 slider is slidably connected to the side of the rear mold 2 adjacent to the No. 2 slider 13, an elastic part is provided inside the No. 1 slider 15, and a No. 1 slider insert 16 is fixedly connected to the side of the No. 1 slider 15 close to the rear mold core 20; the front mold is placed above the rear mold 2, the bottom of the front mold is fixedly connected to the front mold core 1, the front mold slider 12 for pushing the product open to prevent it from sticking to the front mold is slidably installed inside the front mold core 1, and an inclined guide rod 10 for driving the No. 1 slider 15 is fixed to the bottom of the front mold core 1.

[0022] It should be noted that, before the mold of the present invention is closed, the dome pin 5 is first reset to the bottom, and the rear mold top block 17 is synchronously driven to reset, and then the front mold and the rear mold 2 are closed. When the mold is closed, the guide rod 14 is driven to reset the No. 2 slider 13, and the oblique guide rod 10 drives the No. 1 slider 15 to reset. The No. 1 slider 15 drives the No. 1 slider insert 16 to cooperate with the rear mold core 20. After each slider is reset to the position, the injection molding machine will start glue production again. After the mold injection is completed, the mold is opened, the front mold core 1 and the front mold slider 12 are pulled apart from the product, and at the same time, the No. 1 slider 15 and the No. 2 slider 13 are driven to move outward to separate from the product buckle position. During the movement of the No. 1 slider 15, the No. 1 slider ejector 18 delays the action to tighten the product to prevent sticking to the mold.

[0023] See also Figure 1 、 2 As shown in Figure 4, the bottom of the rear mold 2 is fixedly connected to the base 3, the inside of the base 3 is slidably connected to the needle plate 4, the top of the needle plate 4 is fixedly connected to the dome needle 5, the top of the dome needle 5 passes through the rear mold core 20 and is slidably connected to the rear mold core 20, the middle part of the rear mold core 20 is slidably connected to two rear mold top blocks 17, and the bottom of the rear mold top block 17 is fixedly connected to the dome needle 5.

[0024] It should be noted that a spring is provided between the needle plate 4 and the bottom of the rear mold 2 of the utility model. In the natural state, the spring pushes the needle plate 4 downward, so that the rear mold top block 17 and the dome needle 5 are reset, which is convenient for injection molding after mold closing. When demolding, the ejector pushes the needle plate to drive the dome needle 5 and the base 3 to push the product and the runner out of the rear mold core 20, and take out the product and the runner; the runner is removed and the glue is fed.

[0025] See also Figure 3 As shown, one side of the rear mold core 20 is provided with a hole that cooperates with the No. 2 slider 13, the top of the No. 2 slider 13 is provided with an inclined hole, and the bottom of the No. 2 slider 13 is provided with a reset elastic member. The bottom of the front mold core 1 is fixedly connected to a driving guide rod 14 that cooperates with the inclined hole. The elastic part includes a No. 1 slider ejector pin 18 fixed to the side of the rear mold core 20. The No. 1 slider ejector pin 18 is slidably connected to the No. 1 slider 15. The outer side of the No. 1 slider ejector pin 18 is provided with a reset spring 19 for driving the No. 1 slider 15 away from the rear mold core 20.

[0026] It should be noted that, in the present invention, the No. 1 slider 15 is slidably connected to the No. 1 slider ejector pin 18. A return spring 19 is sleeved on the outer side of the No. 1 slider ejector pin 18, and one end of the return spring 19 is fixedly connected to the No. 1 slider ejector pin 18. The other end of the return spring 19 is connected to the No. 1 slider 15. In the natural state, the return spring 19 drives the No. 1 slider 15 to separate from the rear mold core 20, and the No. 1 slider 15 drives the No. 1 slider insert 16 to separate from the rear mold core 20. When the mold is closed, the driving guide rod 14 is inserted into the inclined hole at the top of the No. 2 slider 13. Under the extrusion of the driving guide rod 14, the No. 2 slider 13 moves toward the inside of the rear mold core 20, the No. 2 slider 13 is inserted into the rear mold core 20, and the inclined guide rod 10 moves downward. The inclined guide rod 10 pushes the No. 1 slider 15 into the side of the rear mold core 20 from the side of the No. 1 slider, so that the No. 1 slider insert 16 reaches the specified position. During mold separation, when the No. 1 slider 15 and the No. 2 slider 13 are separated respectively, under the action of elastic force, the No. 1 slider 15 drives the No. 1 slider insert 16 to separate from the product, and the No. 2 slider 13 is separated from the product.

[0027] See also Figure 3 、 4 As shown, the four corners of the bottom of the front mold core 1 are fixed with positioning rods 11, the top of the rear mold 2 is provided with positioning holes that cooperate with the positioning rods 11, the bottom of the front mold core 1 is fixed with a No. 2 trapezoidal positioning block 8, and the side of the bottom of the front mold core 1 away from the No. 2 trapezoidal positioning block 8 is provided with a No. 1 trapezoidal positioning groove 7, the top of the rear mold 2 is provided with a No. 1 trapezoidal positioning block 6 that cooperates with the No. 1 trapezoidal positioning groove 7, and the top of the No. 1 slider 15 is provided with a No. 2 trapezoidal positioning groove 9 that cooperates with the No. 2 trapezoidal positioning block 8.

[0028] It should be noted that when the present invention is closing the mold, the positioning rod 11 first contacts the positioning hole on the top of the rear mold 2, so that the front mold core 1 and the rear mold core 20 can be accurately positioned, and the No. 1 trapezoidal positioning block 6 is inserted into the No. 1 trapezoidal positioning groove 7, and the No. 2 trapezoidal positioning block 8 is inserted into the reset No. 2 trapezoidal positioning groove 9, thereby achieving interlocking and ensuring the stability and accuracy of each insert.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0031] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deep-bone large drawer-type mold structure, characterized by: include: A rear mold (2), wherein a rear mold core (20) is provided in the middle of the rear mold (2), a second slider (13) is slidably provided on one side of the rear mold core (20), a first slider (15) is slidably connected to a side of the rear mold (2) adjacent to the second slider (13), an elastic portion is provided inside the first slider (15), and a first slider insert (16) is fixedly connected to a side of the first slider (15) close to the rear mold core (20); A front mold is placed above the rear mold (2), a front mold core (1) is provided at the bottom of the front mold, a front mold slider (12) is movably installed inside the front mold core (1) for pushing open the product to prevent it from sticking to the front mold, and an inclined guide rod (10) is fixed at the bottom of the front mold core (1) for driving a No. 1 slider (15).

2. The deep-bone large drawer mold structure according to claim 1, characterized in that: The bottom of the rear mold (2) is fixedly connected to a base (3), the interior of the base (3) is slidably connected to a needle plate (4), the top of the needle plate (4) is fixedly connected to a dome needle (5), and the top of the dome needle (5) passes through the rear mold core (20) and is slidably connected to the rear mold core (20).

3. The deep-bone large drawer mold structure according to claim 1, characterized in that: A hole is provided on one side of the rear mold core (20) for matching with the second slider (13), an oblique hole is provided on the top of the second slider (13), and a driving guide rod (14) is fixedly connected to the bottom of the front mold core (1) for matching with the oblique hole.

4. The deep-bone large drawer mold structure according to claim 1, characterized in that: The elastic part includes a No. 1 slider pin (18) fixed to the side of the rear mold core (20), the No. 1 slider pin (18) is slidably connected to the No. 1 slider (15), and the outer side of the No. 1 slider pin (18) is provided with a return spring (19) for driving the No. 1 slider (15) away from the rear mold core (20).

5. The deep-bone large drawer mold structure according to claim 2, characterized in that: The middle of the rear mold core (20) is slidably connected to two rear mold top blocks (17), and the bottom of the rear mold top blocks (17) is fixedly connected to the dome needle (5).

6. The deep-bone large drawer mold structure according to claim 1, characterized in that: The four corners of the bottom of the front mold core (1) are fixedly connected with positioning rods (11), and the top of the rear mold (2) is provided with positioning holes that match the positioning rods (11).

7. The deep-bone large drawer mold structure according to claim 1, characterized in that: A No. 2 trapezoidal positioning block (8) is fixedly connected to the bottom of the front mold core (1); a No. 1 trapezoidal positioning groove (7) is provided on a side of the bottom of the front mold core (1) away from the No. 2 trapezoidal positioning block (8); a No. 1 trapezoidal positioning block (6) is provided on the top of the rear mold (2) to cooperate with the No. 1 trapezoidal positioning groove (7); and a No. 2 trapezoidal positioning groove (9) is provided on the top of the No. 1 slider (15) to cooperate with the No. 2 trapezoidal positioning block (8).

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