Secondary demolding sliding block structure and mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a secondary demolding slide block structure and a mold, the secondary demolding slide block structure comprises a movable mold and a fixed mold which are matched with each other, the movable mold is slidably connected with a main side loose core, and the main side loose core is slidably connected with a middle connecting piece along the sliding direction of the main side loose core; an auxiliary side loose core is connected to the main side loose core in a sliding mode in the direction perpendicular to the sliding direction of the main side loose core. The fixed mold is connected with a first driving mechanism used for driving the middle connecting piece to slide relative to the main side loose core, and the middle connecting piece is connected with a second driving mechanism used for driving the auxiliary side loose core to slide relative to the main side loose core. The secondary side core-pulling mold solves the problems that in the prior art, a mold with a secondary side core-pulling function is complex in structure and high in cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely relates to secondary demoulding sliding block structure and mold. BACKGROUND

[0002] For the automobile drawer structure as shown in the accompanying drawings Figure 1 And figure 2, because the end face opening of drawer structure is set, in the injection mold design process, need to set up side core-pulling structure for the side of forming end face opening, and the demolding direction of side core-pulling is along the drawer length direction.But in the drawer structure, there is also side square hole, and the setting direction of side square hole is perpendicular to the demolding direction of side core-pulling, and the setting direction of side square hole is also perpendicular to the demolding direction of movable die and fixed die, which causes that the conventional side core-pulling structure cannot form square hole structure.

[0003] In order to form the above-mentioned side square hole, the conventional technology in the prior art is to set a separate secondary side core-pulling structure in the side core-pulling, at the beginning of demolding, the movable die and the fixed die are demolded first, then the secondary side core-pulling structure is demolded first, and finally the side core-pulling structure is driven to demold to complete the whole demolding process.Although this structure can form the side square hole, the structure of the whole mold is very complex, and it is difficult to set an independent secondary side core-pulling structure on the side core-pulling with limited structure size, and the assembly is complex and the cost is high.Therefore, it is necessary to improve the existing mold structure to simplify the secondary side core-pulling structure, reduce the design difficulty and control the equipment cost. UTILITY MODEL CONTENTS

[0004] The utility model intends to provide secondary demolding sliding block structure and mold, to solve the problems, such as complex mold structure and high cost of secondary side core-pulling in prior art.

[0005] In order to solve the above problems, the utility model adopts the following technical scheme: secondary demolding sliding block structure, including movable die and fixed die matched with each other, the movable die is slidably connected with main side core-pulling, the main side core-pulling is slidably connected with intermediate connecting piece along the sliding direction of main side core-pulling, and the main side core-pulling is slidably connected with auxiliary side core-pulling along the direction perpendicular to the sliding direction of main side core-pulling;The fixed die is connected with the first driving mechanism for driving the intermediate connecting piece to slide relative to the main side core-pulling, and the intermediate connecting piece is connected with the second driving mechanism for driving the auxiliary side core-pulling to slide relative to the main side core-pulling.

[0006] The principle of this solution is as follows: the moving mold and the fixed mold are used to form the cavity of the main structure of the drawer; the main side core pull cooperates with the moving mold to form the end face opening of the drawer; and the secondary side core pull cooperates with the main side core pull to form the square hole on the side of the drawer. In this application, a middle connecting member and a secondary side core are slidably connected on the main side core pull, and the sliding direction of the middle connecting member is perpendicular to the sliding direction of the secondary side core pull, while the sliding direction of the middle connecting member is the same as the sliding direction of the main side core pull. At the same time, a first driving mechanism is set on the fixed mold, and a second driving mechanism is set on the middle connecting member. In the actual demolding process, the moving mold and the fixed mold first move away from each other. At this time, the first driving mechanism set on the fixed mold drives the middle connecting member to slide relative to the main side core pull. When the middle connecting member slides relative to the main side core pull, the secondary side core pull is driven to slide relative to the main side core pull through the second driving mechanism, so that the secondary side core pull can be demolded during the mold opening stage of the moving mold and the fixed mold. The secondary side core pull is demolded to form the side square hole of the drawer structure. Then, the main side core pull is driven to slide relative to the moving mold to demold. The main side core pull is demolded to form the end face opening of the drawer structure. Finally, the drawer is pushed out of the moving mold.

[0007] The beneficial effects of this plan are:

[0008] 1. Simplified Structure: Compared to existing technologies that require a secondary side core-pulling structure and a separate power drive structure when molding products with side square holes, resulting in a complex mold structure, this application utilizes a linkage structure between the first and second drive mechanisms. This automatically drives the intermediate connecting piece to slide and demold the secondary side core during mold opening between the moving and fixed molds. This eliminates the need for a separate power mechanism for demolding the secondary side core, effectively simplifying the structure and reducing mold costs.

[0009] 2. Demolding can be completed in a small space: In this application, since a separate power drive structure is no longer set for the secondary side core pulling, the mold structure is effectively simplified and the space occupied by the secondary side core pulling structure is reduced, which is particularly suitable for molding smaller structures.

[0010] Preferably, as an improvement, the number of secondary side core pullers is multiple, and the multiple secondary side core pullers are slidably connected to both sides of the intermediate connector.

[0011] In this design, multiple secondary side core pulls are positioned on both sides of the intermediate connector. When the intermediate connector slides relative to the main side core pull, all secondary side core pulls can be demolded simultaneously. For structures with multiple secondary side core pulls, this design further simplifies the overall structure and improves the stability of the secondary side core pull demolding.

[0012] Preferably, as an improvement, the first driving mechanism includes an inclined guide post fixedly connected to the fixed mold, and an inclined guide hole that mates with the inclined guide post is provided on the intermediate connecting member.

[0013] In this solution, when the moving mold and the fixed mold move away from each other and are demolded, the inclined guide post and the inclined guide hole are used to automatically push the intermediate connecting part to slide relative to the main side core puller. The structure is simple and can achieve the driving function accurately and stably.

[0014] Preferably, as an improvement, the second drive mechanism includes a T-shaped groove and a T-shaped protrusion that slide against each other.

[0015] In this solution, the sliding fit of the T-shaped groove and the T-shaped protrusion is utilized, and the secondary core pull is slidably connected to the main core pull. Therefore, when the intermediate connecting part slides relative to the secondary core pull, the secondary core pull can be easily and stably pushed to slide relative to the main core pull, thereby achieving lateral demolding of the side square hole.

[0016] Preferably, as an improvement, the T-shaped groove is provided on the intermediate connector, and the T-shaped protrusion is provided on the secondary side core puller.

[0017] Since the size and shape of the secondary core puller are smaller than those of the intermediate connector, this design sets the T-shaped groove on the intermediate connector and the T-shaped protrusion on the secondary core puller. On the one hand, there is enough space on the intermediate connector to set the T-shaped groove, which is convenient for processing and will not significantly affect the structural strength of the intermediate connector. On the other hand, setting the T-shaped protrusion on the secondary core puller will not damage the original structure of the secondary core puller, and it is also convenient for processing. The T-shaped protrusion structure is stable and can slide stably with the main core puller.

[0018] Preferably, as an improvement, a lateral guide block is fixedly connected to the intermediate connector, and the secondary side core puller is slidably engaged with the lateral guide block.

[0019] In this solution, a lateral guide block is set on the intermediate connector to guide the sliding of the secondary core pull relative to the primary core pull, thereby improving the accuracy of the secondary core pull during the sliding process.

[0020] Preferably, as an improvement, a drive cylinder is fixedly connected to the moving mold, the main side core puller is connected to the drive cylinder, and the main side core puller is located between the intermediate connecting piece and the drive cylinder.

[0021] In this design, when the fixed mold moves away from the moving mold, the first drive mechanism drives the intermediate connecting piece to slide. Then, the intermediate connecting piece is driven by the second drive mechanism to complete the demolding of the secondary side core pull. Finally, the drive cylinder drives the main side core pull to slide relative to the moving mold, thus completing the demolding of the main side core pull. At the same time, in this design, the main side core pull is located between the intermediate connecting piece and the drive cylinder, avoiding mutual interference between the drive cylinder and the intermediate connecting piece due to the drive cylinder and the intermediate connecting piece being located on the same side of the main side core pull, thereby improving the stability of the structure.

[0022] Preferably, as an improvement, a main guide block is fixedly connected to the moving mold, and the main side core puller slides in cooperation with the main guide block.

[0023] In this scheme, the sliding of the main guide block on the main side core pulling is guided to ensure the stable and precise operation of the structure.

[0024] Preferably, as an improvement, the intermediate connector includes a square base, and the main side core puller is provided with a square sliding hole that slides in conjunction with the square base.

[0025] In this design, the intermediate connector is a square base with a square structure, which is easy to process and has a stable structure. At the same time, a square sliding hole is opened on the main side core puller, which not only guides the sliding of the square base, but also prevents the square base from rotating relative to the main side core puller during the sliding process, thus improving the stability during the demolding process.

[0026] A mold comprising the aforementioned secondary demolding slider structure.

[0027] In this solution, by setting the secondary demolding slider structure in the mold, demolding with a square hole similar to the side of a drawer can be easily completed. There is no need to set a separate power mechanism for the secondary core-pulling structure in the mold structure, which effectively simplifies the mold structure and reduces the mold cost. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the formed drawer in this embodiment.

[0029] Figure 2 is a schematic diagram of the formed drawer from another perspective in this embodiment.

[0030] Figure 3 is a schematic diagram of the mold-closed state in Embodiment 1 of this utility model.

[0031] Figure 4 is a schematic diagram of the mold-opening state in Embodiment 1 of this utility model.

[0032] Figure 5 is a schematic diagram of the square base and the secondary side core puller in the mold closing state in Embodiment 1 of this utility model.

[0033] Figure 6 is a schematic diagram of the square base and the secondary side core pulling in the mold opening state in Embodiment 1 of this utility model.

[0034] Figure 7 is a schematic diagram of the square base in Embodiment 1 of this utility model.

[0035] Figure 8 is a schematic diagram of the main side core pulling and other components in the mold-closed state in Embodiment 1 of this utility model.

[0036] Figure 9 is a schematic diagram of the main side core pulling and other components in the mold-closed state in Embodiment 2 of this utility model. Detailed Implementation

[0037] The following detailed description illustrates the specific implementation method:

[0038] The reference numerals in the accompanying drawings include: drawer 1, end face opening 101, side square hole 102, main side pull core 2, square seat 3, oblique guide hole 301, T-shaped oblique groove 302, oblique guide post 4, secondary side pull core 5, T-shaped protrusion 501, side guide block 6, drive cylinder 7, drive block 8, and main guide block 9.

[0039] A prior art drawer structure for automobiles is as follows: Figure 1 and Figure 2 As shown, the main structure includes a drawer 1, an end face opening 101 at one end of the drawer 1, and side square holes 102 on both sides of the drawer 1. The end face opening 101 is set along the length direction of the drawer 1, and the side square holes 102 are set along the width direction of the drawer 1. During the forming process of the drawer 1, a side core-pulling structure is required to form the end face opening 101 along the length direction of the drawer 1, and a side core-pulling structure is required to form the side square holes 102 along the width direction of the drawer 1.

[0040] Example 1

[0041] This embodiment is shown in Figure 3: a secondary demolding slider structure, including a moving mold and a fixed mold that cooperate with each other (the moving mold and fixed mold structure are not shown in Figure 3), the moving mold and the fixed mold are used to form as shown in Figure 3. Figure 1 The main structure of drawer 1 is shown. In this embodiment, a main side drawer core 2 is slidably connected to the moving mold. The sliding direction of the main side drawer core 2 is along the length direction of drawer 1. The main side drawer core 2 is used to form the end face opening 101 of drawer 1. An intermediate connector is slidably connected to the main side drawer core 2 along the sliding direction of the main side drawer core 2. In this embodiment, the intermediate connector is a square base 3 with a square structure. A square sliding hole is opened on the main side drawer core 2. The square base 3 slides horizontally with the square sliding hole in the left-right direction. A step is provided on the top right side of the main side drawer core 2. The right end of the square base 3 is located outside the step and is exposed.

[0042] Referring to Figures 3 and 4, a first driving mechanism for driving the square base 3 to slide laterally is connected to the fixed mold. In this embodiment, the first driving mechanism includes an inclined guide post 4 fixedly connected to the fixed mold by screws. The inclined guide post 4 is inclined. The square base 3 has an inclined guide hole 301 that slides with the inclined guide post 4. Referring to Figure 5, in the mold closing state, the inclined guide post 4 is inserted into the inclined guide hole 301. When the moving mold and the fixed mold move away from each other during the mold opening stage, the moving mold together with the square base 3 moves away from the fixed mold and the inclined guide post 4. The inclined guide post 4 can then drive the square base 3 to slide relative to the main side core pull 2 ​​through the inclined guide hole 301.

[0043] Referring to Figures 5 and 6, a secondary side drawer 5 (i.e., along the width direction of drawer 1) is slidably connected to the main side drawer 2 along a direction perpendicular to the sliding direction of the main side drawer 2. A second driving mechanism for driving the secondary side drawer 5 to slide relative to the main side drawer 2 is connected to the square base 3. The secondary side drawer 5 is used to cooperate with the main side drawer 2 to form a square hole 102 on the side of the drawer 1. In this embodiment, there are multiple secondary side drawers 5, and the multiple secondary side drawers 5 are symmetrically arranged along the front and rear sides of the square base 3. The number of secondary side drawers 5 is determined according to the number of square holes 102 on the upper side of the drawer 1. In Figure 5, there are two secondary side drawers 5. Referring to Figures 6 and 7, the second drive mechanism includes a T-shaped groove 302 and a T-shaped protrusion 501 that slide against each other. The T-shaped groove 302 is located at the end of the square base 3, and the T-shaped protrusion 501 is integrally formed on the secondary side core pull 5. At the same time, a lateral guide block 6 is fixedly connected to the main side core pull 2 ​​by screws. Each secondary side core pull 5 is provided with two lateral guide blocks 6, and the secondary side core pull 5 is provided with a stepped surface that slides with the lateral guide blocks 6. The two lateral guide blocks 6 limit and guide the secondary side core pull 5. When the square base 3 slides relative to the main side core pull 2, the T-shaped groove 302 on the square base 3 applies a pushing force to the T-shaped protrusion 501 on the secondary side core pull 5. When the secondary side core pull 5 is subjected to the pushing force, the secondary side core pull 5 can only slide relative to the main side core pull 2 ​​under the limiting and guiding effect of the lateral guide blocks 6 and cannot disengage from the main side core pull 2.

[0044] Referring to Figures 6 and 8, in this embodiment, a drive cylinder 7 is fixedly connected to the moving mold by screws, and a drive block 8 is fixedly connected to the output shaft of the drive cylinder 7 by screws. The drive block 8 is fixedly connected to the main side core pull 2 ​​by screws. When demolding is required, the drive cylinder 7 drives the main side core pull 2 ​​to slide relative to the moving mold to achieve demolding and mold closing of the main side core pull 2.

[0045] In this embodiment, when demolding after the drawer 1 is formed, the moving mold and the fixed mold move away from each other and demold. When the moving mold and the square base 3 move away from the fixed mold together, the square base 3 is subjected to the force of the inclined guide post 4 on the fixed mold and slides relative to the main side core pull 2. The sliding direction is away from the formed drawer 1, completing the lateral core pull action of the end face opening 101 of the drawer 1. During the process of the square base 3 sliding and demolding relative to the main side core pull 2, the T-shaped inclined groove 302 on the square base 3 applies a force to the T-shaped protrusion 501 on the secondary side core pull 5, so that the secondary side core pull 5 slides relative to the main side core pull 2 ​​and completes the demolding of the secondary side core pull 5. At this time, the lateral core pull action of the side square hole 102 of the drawer 1 is completed. When the main side core pull 2 ​​completely exits the end face opening 101 of the drawer 1 and the secondary side core pull 5 completely exits the side square hole 102 of the drawer 1, the product is ejected from the moving mold by the ejection mechanism provided on the moving mold in the prior art, and the demolding of the drawer 1 is completely realized.

[0046] A mold includes the aforementioned secondary demolding slider structure. By setting the secondary demolding slider structure in the mold, when products such as drawer 1 have two openings or holes in different directions and require two lateral core-pulling structures in different directions, the technical solution of this embodiment can greatly simplify the mold structure and accurately and stably complete the demolding action, ensuring the stability of the demolding process and reducing the cost of the mold. Of course, this embodiment only uses drawer 1 as an example for illustration. In actual application, when products have holes, slots, blind holes, and irregular structures in different directions and require a secondary demolding structure in the corresponding mold, the mold structure in this embodiment can be referred to.

[0047] Example 2

[0048] The difference between Embodiment 2 and Embodiment 1 is as follows: As shown in Figure 9, in this embodiment, a main guide block 9 is fixedly connected to the moving mold by screws. There are two main guide blocks 9, and the two main guide blocks 9 are located on the front and rear sides of the main side core pull 2. At the same time, a step is opened on the main side core pull 2 ​​to slide with the main guide block 9. The main guide block 9 provides limit and guidance for the sliding of the main side core pull 2, ensuring the accuracy of the sliding process of the main side core pull 2, so that the product injection molding can be completed accurately and stably.

[0049] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A two-stage demolding slider structure, comprising a moving mold and a fixed mold that cooperate with each other, characterized in that: The moving mold is slidably connected to a main side core puller, and an intermediate connecting member is slidably connected to the main side core puller along the sliding direction of the main side core puller. A secondary side core puller is slidably connected to the main side core puller along a direction perpendicular to the sliding direction of the main side core puller. The fixed mold is connected to a first driving mechanism for driving the intermediate connecting member to slide relative to the main side core puller, and a second driving mechanism is connected to the intermediate connecting member for driving the secondary side core puller to slide relative to the main side core puller.

2. The secondary demolding slider structure according to claim 1, characterized in that: The number of secondary side core pullers is multiple, and the multiple secondary side core pullers are slidably connected to both sides of the intermediate connector.

3. The secondary demolding slider structure according to claim 1, characterized in that: The first driving mechanism includes a slanted guide post fixedly connected to the fixed mold, and a slanted guide hole that cooperates with the slanted guide post is provided on the intermediate connecting member.

4. The secondary demolding slider structure according to claim 1, characterized in that: The second drive mechanism includes a T-shaped groove and a T-shaped protrusion that slide against each other.

5. The secondary demolding slider structure according to claim 4, characterized in that: The T-shaped inclined groove is provided on the intermediate connector, and the T-shaped protrusion is provided on the secondary side core puller.

6. The secondary demolding slider structure according to claim 5, characterized in that: A lateral guide block is fixedly connected to the intermediate connector, and the secondary side core puller slides in conjunction with the lateral guide block.

7. The secondary demolding slider structure according to claim 1, characterized in that: A drive cylinder is fixedly connected to the moving mold, and the main side core puller is connected to the drive cylinder. The main side core puller is located between the intermediate connecting piece and the drive cylinder.

8. The secondary demolding slider structure according to claim 1, characterized in that: A main guide block is fixedly connected to the moving mold, and the main side core puller slides in conjunction with the main guide block.

9. The secondary demolding slider structure according to claim 1, characterized in that: The intermediate connector includes a square base, and the main side core puller is provided with a square sliding hole that slides in conjunction with the square base.

10. A mold, characterized in that: Includes the secondary demolding slider structure as described in any one of claims 1-9.

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