A mold opening and closing structure with mold knock

Abstract

The utility model relates to the die field discloses a mold structure of opening and closing of mold of mold knock, include: the bearing plate and the movable die, the movable die is installed at the top of bearing plate, the upper fixed plate is installed movable die one side, the lower fixed plate is installed bearing plate one side, the upper fixed plate sets up at the top of lower fixed plate, the rubber plug fixed link, penetrates lower fixed plate, the upper fixed plate is connected with the top end of rubber plug fixed link. In the utility model, through the action of accurate control movable die and the movable gap of bearing plate and shovel baseband drive line retreat, can leave sufficient space for front mold insert stripping, avoid knock and wear position damage, guarantee that front mold insert stripping is smooth, reduced the defect of product because of stripping problem, improved product forming quality and the yield.

Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to a mold opening and closing structure for mold penetration. Background Technology

[0002] In molds, parts of the product with special structures (requiring demolding via slides) are formed through the contact between the slide and the front mold when the mold is closed. During mold opening, the slide needs to move a certain distance to allow the product to smoothly exit the mold. In mold manufacturing and injection molding, when the product slide pierces through the front mold structure, the commonly used solution is to install hydraulic or pneumatic cylinders at the slide to achieve the mold opening and closing actions.

[0003] Existing mold opening and closing structures not only require precise pneumatic / hydraulic control systems, but also involve complex transmission structures, resulting in high mold processing difficulty, high maintenance costs, and increased mold complexity. Utility Model Content

[0004] To solve the problems mentioned above, this utility model is implemented through the following technical solution.

[0005] A mold opening and closing structure with mold penetration includes: a support plate and a moving mold, the moving mold being mounted above the support plate; an upper fixing plate mounted on one side of the moving mold; a lower fixing plate mounted on one side of the support plate, the upper fixing plate being disposed on top of the lower fixing plate; a rubber plug fixing rod penetrating the lower fixing plate, the upper fixing plate being connected to the top end of the rubber plug fixing rod; and a limiting ring disposed at the bottom end of the rubber plug fixing rod, a gap being formed between the limiting ring and the lower fixing plate to allow space for the front mold insert during demolding.

[0006] Preferably, the upper fixing plate includes a nylon plug that penetrates the upper fixing plate, and the nylon plug is connected to a plug fixing rod.

[0007] Preferably, the nylon stopper includes: a stopper head installed at the bottom end of the nylon stopper, and a through hole is provided on the stopper fixing rod, with the stopper head installed in the through hole.

[0008] Preferably, the lower fixing plate includes: a fixing screw installed in the through hole, and a limiting ring sleeved on the fixing screw and located between the fixing screw and the lower fixing plate.

[0009] Preferably, the method further includes: two heat insulation plates, which are respectively installed on one side of the upper fixed plate and the lower fixed plate, and the support plate and the moving mold are respectively connected to the two heat insulation plates.

[0010] Preferably, the support plate includes a shovel base, which is installed on the top of the support plate and the shovel base penetrates the moving mold.

[0011] Preferably, the moving mold includes: a positioning ring installed on the top of the moving mold; and two sliding blocks installed on the moving mold, the two sliding blocks being arranged on both sides of the positioning ring, the sliding blocks being configured to move away from the positioning ring when the shovel base moves downward.

[0012] Preferably, it also includes a base plate, which is installed at the bottom of the support plate.

[0013] This utility model provides a mold opening and closing structure for mold penetration. Compared with the prior art, it has the following advantages: By precisely controlling the moving mold and the support plate's movement gap and the shovel base driving the slide back, sufficient space can be left for the front mold insert to be demolded, avoiding damage at the penetration point, ensuring smooth demolding of the front mold insert, reducing product defects caused by demolding problems, and improving product molding quality and yield; this solution reduces mold opening actions, simplifies the mold, reduces the requirements for processing accuracy and equipment, reduces processing steps, and effectively reduces mold processing costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram from another perspective of the present invention.

[0016] Figure 3 This is a schematic diagram of the cross-section of the moving mold proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of the upper and lower fixing plates proposed in this utility model.

[0018] Figure 5 This is a schematic cross-sectional view of the upper fixing plate and the lower fixing plate proposed in this utility model.

[0019] Figure 6 This is a schematic diagram of the mold opening state of the upper and lower fixing plates proposed in this utility model.

[0020] The attached figures are labeled as follows:

[0021] 100. Base plate;

[0022] 200. Support plate; 201. Shovel base;

[0023] 300. Moving mold; 301. Locating ring; 302. Slide block;

[0024] 400. Upper fixing plate; 401. Nylon rubber stopper; 402. Plug head;

[0025] 500. Lower fixing plate; 501. Rubber plug fixing rod; 502. Through hole; 503. Fixing screw; 504. Limiting ring;

[0026] 600. Insulation board. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0028] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0029] Reference Figures 1-6 A mold opening and closing structure with mold penetration includes: a support plate 200 and a moving mold 300, the moving mold 300 being mounted above the support plate 200; an upper fixing plate 400 mounted on one side of the moving mold 300; a lower fixing plate 500 mounted on one side of the support plate 200, the upper fixing plate 400 being disposed on top of the lower fixing plate 500; a rubber plug fixing rod 501 penetrating the lower fixing plate 500, the upper fixing plate 400 being connected to the top end of the rubber plug fixing rod 501; and a limiting ring 504 disposed at the bottom end of the rubber plug fixing rod 501, the limiting ring 504 having a gap with the lower fixing plate 500 to provide space for the front mold insert during demolding.

[0030] In this embodiment, the support plate 200 serves as the basic support component of the entire mold structure, providing a platform for the installation and fixation of other components. The moving mold 300 and the support plate 200 can generate relative displacement during mold opening, creating conditions for subsequent demolding. The gap between the limiting ring 504 and the lower fixed plate 500 plays a crucial role in demolding, providing space for the front mold insert. Through this pre-reserved gap, the shovel base 201 has sufficient space to descend, thereby driving the slide 302 to move. The gap left after the slide 302 retracts provides necessary space for the demolding of the front mold insert, preventing collisions between the slide 302 and the front mold insert during demolding and protecting the impact point from damage. During mold opening, as the rubber plug fixing rod 501 moves upward, the gap between the limiting ring 504 and the lower fixed plate 500 gradually decreases. When the limiting ring 504 contacts the lower fixed plate 500, it restricts the rubber plug fixing rod 501 from continuing to move upward, thereby precisely controlling the displacement during demolding.

[0031] The upper fixing plate 400 includes: a nylon plug 401, which penetrates the upper fixing plate 400 and is connected to a plug fixing rod 501; the nylon plug 401 includes: a plug head 402, which is installed at the bottom end of the nylon plug 401; a through hole 502 is provided on the plug fixing rod 501, and the plug head 402 is installed in the through hole 502; the lower fixing plate 500 includes: a fixing screw 503, which is installed in the through hole 502; and a limiting ring 504 is sleeved on the fixing screw 503 and located between the fixing screw 503 and the lower fixing plate 500.

[0032] There are two heat insulation plates 600, which are respectively installed on one side of the upper fixed plate 400 and the lower fixed plate 500. The support plate 200 and the moving mold 300 are respectively connected to the two heat insulation plates 600.

[0033] The main function of the heat insulation plate 600 is to reduce heat transfer during the operation of the mold. By setting the heat insulation plate 600, the working stability and service life of the mold can be improved.

[0034] The support plate 200 includes: a shovel base 201, installed on the top of the support plate 200, the shovel base 201 penetrating through the moving mold 300; the moving mold 300 includes: a positioning ring 301, installed on the top of the moving mold 300; and two sliding positions 302, installed on the moving mold 300, located on both sides of the positioning ring 301, the sliding positions 302 being configured to move away from the positioning ring 301 when the shovel base 201 moves downward.

[0035] The aforementioned method of using the downward movement of the shovel base 201 to drive the backward movement of the slide 302 replaces the traditional hydraulic or pneumatic cylinder drive. The shovel base 201 is a relatively simple mechanical structure that, through a specific cooperation with the slide 302 (such as an inclined plane cooperation), converts the vertical movement during mold opening into the horizontal movement of the slide 302. Compared to hydraulic or pneumatic cylinders, this mechanical drive method reduces the complexity of the hydraulic or pneumatic system and its related components (such as hydraulic cylinders, oil pipes, solenoid valves, air cylinders, air pipes, air valves, etc.), thus reducing the complexity and processing difficulty of the mold. The mold opening action is performed in steps: first, the gap between the moving mold plate 300 and the support plate 200 is opened; then, the moving mold plate 300 is opened to demold the front mold insert; finally, the gap between the moving mold plate 300 and the support plate 200 is opened again until the mold opening is complete. This orderly mold opening process makes the demolding process more controllable, effectively avoids interference between mold components, and ensures the normal operation of the mold.

[0036] The base plate 100 is installed at the bottom of the support plate 200.

[0037] During use, the mold is in the closed state, all components are in their initial positions, a certain gap is maintained between the limiting ring 504 and the lower fixed plate 500, and the slide 302 is in contact with the front mold, together forming the product cavity. The mold opening action begins, the moving mold 300 moves upward relative to the support plate 200, opening the mechanical clearance between the moving mold 300 and the support plate 200 to 2.0mm. During this process, the upper fixed plate 400, installed on one side of the moving mold 300, moves upward synchronously. Since the upper fixed plate 400 is fixedly connected to the top of the rubber plug fixing rod 501, the rubber plug fixing rod 501 moves upward along its axial direction, and the limiting ring 504 also moves upward with the rubber plug fixing rod 501, gradually reducing the gap between the limiting ring 504 and the lower fixed plate 500. When the clearance between the moving mold 300 and the support plate 200 reaches 2.0mm, the shovel base 201 at the top of the support plate 200 begins to descend with the relative movement of the moving mold 300 and the support plate 200. During the downward movement of the shovel base 201, the sliding block 302 is moved backward through its mating structure, creating a gap. This gap allows space for the front mold insert to disengage, preventing damage to the ejection point during subsequent demolding. The moving mold 300 continues to move upward, and the front mold insert begins to disengage. At this point, because the sliding block 302 has moved backward to create sufficient space, the front mold insert can smoothly detach from the mold without colliding with the sliding block 302, effectively protecting the ejection point. Finally, the gap between the moving mold 300 and the support plate 200 is increased until the maximum gap required for mold opening is reached. At this point, the front mold insert is completely demolded, and the mold opening process is complete.

[0038] In summary, compared with existing technologies, it has the following beneficial effects:

[0039] By precisely controlling the movement gap between the moving mold 300 and the bearing plate 200, as well as the retraction action of the shovel base 201 driving the slide 302 backward, sufficient space can be provided for the demolding of the front mold insert, avoiding damage to the penetration position, ensuring smooth demolding of the front mold insert, reducing product defects caused by demolding problems, and improving product molding quality and yield.

[0040] This solution reduces mold-opening actions, simplifies the mold, lowers the requirements for processing accuracy and equipment, reduces processing steps, and effectively reduces mold processing costs.

[0041] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. A mold knockout opening and closing structure characterized by comprising: include: A support plate (200) and a moving mold (300), the moving mold (300) being mounted above the support plate (200); An upper fixing plate (400) is installed on one side of the moving mold (300); The lower fixing plate (500) is installed on one side of the support plate (200), and the upper fixing plate (400) is disposed on the top of the lower fixing plate (500); A rubber plug fixing rod (501) passes through the lower fixing plate (500), and the upper fixing plate (400) is connected to the top end of the rubber plug fixing rod (501); A limiting ring (504) is provided at the bottom end of the rubber plug fixing rod (501). A gap is formed between the limiting ring (504) and the lower fixing plate (500) to leave space for the front mold insert during demolding.

2. The mold knockout opening and closing structure according to claim 1, wherein The upper fixing plate (400) includes: A nylon plug (401) passes through the upper fixing plate (400), and the nylon plug (401) is connected to the plug fixing rod (501).

3. The mold knockout open-close mold structure according to claim 2, wherein The nylon rubber stopper (401) includes: A stopper (402) is installed at the bottom end of the nylon rubber stopper (401). A through hole (502) is provided on the rubber stopper fixing rod (501), and the stopper (402) is installed in the through hole (502).

4. The mold knockout opening and closing structure according to claim 3, wherein The lower fixing plate (500) includes: A fixing screw (503) is installed in the through hole (502), and a limiting ring (504) is sleeved on the fixing screw (503) and located between the fixing screw (503) and the lower fixing plate (500).

5. The mold knockout open and close mold structure according to claim 1, wherein Also includes: There are two heat insulation plates (600), which are respectively installed on one side of the upper fixed plate (400) and the lower fixed plate (500). The support plate (200) and the moving mold (300) are respectively connected to the two heat insulation plates (600).

6. The mold knockout open / close mold structure according to claim 1, wherein The bearing plate (200) includes: A shovel base (201) is installed on top of the support plate (200), and the shovel base (201) is disposed through the moving mold (300).

7. The mold knockout open-close mold structure according to claim 6, wherein The moving model (300) includes: A positioning ring (301) is installed on top of the moving mold (300); There are two slides (302), which are installed on the moving mold (300). The two slides (302) are located on both sides of the positioning ring (301). The slides (302) are set to move away from the positioning ring (301) when the shovel base (201) moves downward.

8. The mold knockout open and close mold structure according to claim 1, wherein Also includes: The base plate (100) is installed at the bottom of the support plate (200).

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