Mechanism for preventing mold collision during mold closing of sliding block

Abstract

The utility model discloses a mechanism for preventing die collision during die assembly of a sliding block, which belongs to the technical field of collision prevention during die assembly of the sliding block and comprises an upper die block, a lower die block is movably abutted against the bottom of the upper die block, a forming cavity is arranged in the lower die block, and the two ends in the lower die block are connected with the sliding blocks in a sliding manner; limiting plates are slidably connected to the two ends of the interior of the lower module, first sliding grooves are further formed in the two ends of the interior of the lower module, two moving blocks are slidably connected to the interiors of the two first sliding grooves, and connecting rods are rotatably connected to one ends of the four moving blocks; the ends, away from the moving blocks, of the connecting rods located on the two sides are rotationally connected to the two ends of one sides of the two limiting plates correspondingly, first springs are arranged at one ends of the four moving blocks correspondingly, and by arranging the limiting plates, the moving blocks, the connecting rods and the first springs, the effects of buffering the sliding block and preventing the sliding block from colliding with a mold when the sliding block is subjected to mold closing are achieved; hard impact between the sliding block and other parts of the mold can be reduced or eliminated.

Description

Technical Field

[0001] This utility model relates to the field of anti-collision technology for slider mold closing, specifically a mechanism for preventing collisions during slider mold closing. Background Technology

[0002] Slider mold closing typically refers to the use of a slider mechanism in mold design and manufacturing to achieve the mold closing action. A mechanism to prevent collisions during slider mold closing mainly ensures that the slider has been correctly returned to its original position before mold closing, and that the mold closing action will not interfere with any sliders or other components that have not returned to their original position. For example, a zero-angle slider mold closing mechanism for molds, as disclosed in CN222135797U, gradually closes towards the middle of the rear mold insert through the second guide post and the internal through-hole positioning pin. Then, slider two is placed in the sliding groove on the rear mold core, and finally the front mold core is closed, and slider one is closed downwards along the first guide post. By using positioning pins on the rear mold core to position the sliders on the left and right sides, the relative position movement of the sliders between the mold cores is ensured, thereby effectively avoiding the risk of collisions.

[0003] While the above-mentioned technology can effectively avoid the risk of collision by positioning the sliders on the left and right sides with locating pins on the rear mold core and ensuring the relative position movement of the sliders between the mold cores, it has the problem of not being able to buffer the sliders. During the mold closing process, even if the locating pins can ensure the correct relative position of the sliders, there will still be a certain impact between the sliders and the locating pins. This impact load will be transmitted to the locating pins, sliders and mold cores. Utility Model Content

[0004] The purpose of this invention is to provide a mechanism to prevent the slider from colliding with the mold during mold closing, so as to solve the problem mentioned in the background art that the current slider mold closing mechanism on the market cannot buffer the slider.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanism for preventing collisions during slider mold closing, comprising an upper module, a lower module movably abutting against the bottom of the upper module, a molding cavity inside the lower module, and sliders slidably connected to both ends inside the lower module; limit plates slidably connected to both ends inside the lower module, and first sliding grooves also provided at both ends inside the lower module, with two moving blocks slidably connected inside each of the two first sliding grooves; a connecting rod rotatably connected to one end of each of the four moving blocks, with the ends of the connecting rods on both sides away from the moving blocks rotatably connected to both ends of one side of the two limit plates; a first spring provided on one end of each of the four moving blocks; an adjustment component for adjusting the preload of the first springs inside the first sliding grooves; and a cleaning component for cleaning the inside of the molding cavity inside the lower module.

[0006] Preferably, the adjustment component includes four sliding blocks, each of which is located at one end of the four first springs away from the moving block. Each of the four sliding blocks at the end away from the first spring is provided with a sliding rod, and the four sliding rods are slidably connected to the four sides of the lower module. The four sides of the lower module are provided with limiting components to limit the sliding rods.

[0007] Preferably, the cleaning assembly includes four first piston rods, which are respectively disposed around the perimeter of the lower module. Each of the four first piston rods has a hollow tube at one end, and the ends of the four hollow tubes away from the first piston rods are respectively disposed in the forming cavity. The lower module has second sliding grooves on all four sides. Each of the four first piston rods has a second piston rod slidably connected inside it, and the four second piston rods are slidably connected in the four second sliding grooves. A second spring is provided between one end of each of the four first piston rods and one end of each of the four second piston rods. Each of the two sliders has a sliding plate at both ends, and the four sliding plates are also slidably connected in the second sliding grooves.

[0008] Preferably, the limiting component includes four support plates, which are respectively disposed around the lower module. Each of the four support plates is slidably connected to a limiting rod. Each of the four limiting rods has a row of limiting holes, and the four limiting rods are slidably connected to the limiting holes. Each of the four limiting rods has a limiting plate at one end, and a third spring is provided between the four limiting plates and the four support plates.

[0009] Preferably, one end of each of the four sliding rods is provided with a first pull ring, and one end of each of the four limiting rods is provided with a second pull ring.

[0010] Preferably, a one-way valve is installed inside the end of each of the four hollow tubes near the forming cavity.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] By using a limiting plate, moving block, connecting rod, and first spring, the slider is buffered when it closes the mold, preventing it from colliding with the mold. This reduces or eliminates hard impacts between the slider and other parts of the mold, lowers the impact force, and thus reduces damage to the mold structure.

[0013] The adjustment components inside the first slide groove allow for adjustment of the displacement stroke of the first spring, enabling more precise control over the energy absorption capacity of the first spring. For different mold closing speeds, slider weights, and impact forces, the optimal displacement stroke can be found, thereby achieving the best buffering effect and avoiding insufficient buffering due to excessively short spring stroke or prematurely reaching the spring's limit due to excessively long stroke.

[0014] The cleaning components inside the lower module effectively clean the inside of the molding cavity, removing residues and ensuring thorough and uniform cleaning. This also prevents residues from corroding or abrading the mold surface, thereby extending the mold's service life. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is the main view of the lower module structure of this utility model;

[0017] Figure 3 This is a top view of the lower module structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the lower module structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the first piston rod structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the lower module of this utility model;

[0021] In the diagram: 1. Upper module; 2. Lower module; 3. Molding cavity; 4. Slider; 5. Limiting plate; 6. Moving block; 7. Connecting rod; 8. First spring; 9. Sliding block; 10. Sliding rod; 11. First piston rod; 12. Second piston rod; 13. Second spring; 14. Limiting rod; 15. Third spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides the following technical solution: a mechanism to prevent mold collision during slider mold closing.

[0024] Example 1: The limiting plate 5, moving block 6, connecting rod 7, and first spring 8 can buffer the slider 4, such as... Figures 1-6As shown, it includes an upper module 1, with a lower module 2 movably abutting against the bottom of the upper module 1. The lower module 2 has a molding cavity 3 inside, and sliders 4 are slidably connected to both ends inside the lower module 2. Limiting plates 5 are slidably connected to both ends inside the lower module 2. First sliding grooves are also opened at both ends inside the lower module 2, and two moving blocks 6 are slidably connected inside each of the two first sliding grooves. One end of each of the four moving blocks 6 is rotatably connected to a connecting rod 7. The ends of the connecting rods 7 located on both sides away from the moving blocks 6 are rotatably connected to the two ends of one side of the two limiting plates 5. A first spring 8 is provided on one end of each of the four moving blocks 6.

[0025] When the slider 4 is closed, it can be pushed to move inside the lower module 2. As the slider 4 moves continuously, it will come into contact with the limiting plate 5, and then drive the limiting plate 5 to move at the same time. Then the limiting plate 5 drives the two connecting rods 7 to move, and pushes the two moving blocks 6 to move at both ends inside the first slide groove, and simultaneously squeezes the first spring 8. Then the first spring 8 buffers the moving blocks 6 with its own elasticity, thereby buffering the limiting plate 5 and the slider 4.

[0026] Example 2: Unlike Example 1, the adjustment component allows for adjustment of the displacement stroke of the first spring 8, such as... Figures 1-4 and Figure 6 As shown, the first slide groove is equipped with an adjustment component for adjusting the preload of the first spring 8. The adjustment component includes four sliding blocks 9, which are respectively located at the ends of the four first springs 8 away from the moving block 6. Each of the four sliding blocks 9 has a slide rod 10 at the end away from the first spring 8, and the four slide rods 10 are slidably connected to the four sides of the lower module 2. The four sides of the lower module 2 are equipped with a limiting component for limiting the slide rods 10. The limiting component includes four support plates, which are respectively located around the lower module 2. Each of the four support plates is slidably connected to a limiting rod 14. Each of the four slide rods 10 has a row of limiting holes, and the four limiting rods 14 are slidably connected to the limiting holes. Each of the four limiting rods 14 has a limiting plate at one end. A third spring 15 is provided between each of the four limiting plates and the four support plates. Each of the four slide rods 10 has a first pull ring at one end, and each of the four limiting rods 14 has a second pull ring at one end.

[0027] When it is necessary to adjust the displacement stroke of the first spring 8, the pull ring on the limiting rod 14 can be pulled to move the two limiting rods 14 to squeeze the third spring 15 away from the limiting hole. Then, the pull ring on the slide rod 10 can be pulled to move the slide rod 10, thereby moving the sliding block 9 closer to or away from the first spring 8. At this time, the displacement stroke of the first spring 8 can be changed. After the adjustment is completed, the pulling force on the limiting rod 14 can be released. Then, under the action of the third spring 15, it will move the limiting rod 14 into the limiting hole, thereby limiting the slide rod 10.

[0028] Example 3: Unlike Example 2, the cleaning component can clean the inside of the molding cavity 3, such as... Figure 4 and Figure 5 As shown, the lower module 2 is equipped with a cleaning assembly for cleaning the interior of the molding cavity 3. The cleaning assembly includes four first piston rods 11, which are respectively located around the interior of the lower module 2. Each of the four first piston rods 11 has a hollow tube at one end, and the ends of the four hollow tubes away from the first piston rods 11 are respectively located inside the molding cavity 3. Second sliding grooves are provided around the lower module 2. Second piston rods 12 are slidably connected inside the four first piston rods 11, and the four second piston rods 12 are slidably connected in the four second sliding grooves. Second springs 13 are respectively provided between one end of the four first piston rods 11 and one end of the four second piston rods 12. Slide plates are provided at both ends of the two sliders 4, and the four slide plates are also slidably connected in the second sliding grooves. One-way valves are installed inside the ends of the four hollow tubes near the molding cavity 3.

[0029] When the slider 4 closes the mold, the movement of the slider 4 will also drive the slide plate to move inside the second slide groove. As the slider 4 moves continuously, the slide plate will come into contact with the second piston rod 12, and then drive the second piston rod 12 to move inside the first piston rod 11 and squeeze the second spring 13, thereby squeezing the air inside the first piston rod 11. The squeezed air will then be discharged into the molding cavity 3 through the hollow tube. The compressed air will be used to blow away the residue in the molding cavity 3. The stainless steel one-way valve can not only work at high temperatures, but also allow compressed air to flow in one direction, preventing the molten plastic from flowing back into the air pipe during injection molding.

[0030] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prevent the slide mold when the mold mechanism, including the upper die block (1), the bottom of the upper die block (1) is movably abutted with the lower die block (2), the lower die block (2) is internally provided with a forming cavity (3), and both ends of the lower die block (2) are slidably connected with the slide block (4); characterized in that: the both ends of the lower die block (2) are slidably connected with the limiting plate (5), the both ends of the lower die block (2) are further provided with the first sliding slot, and both the first sliding slots are slidably connected with the two moving blocks (6), one end of the four moving blocks (6) is rotatably connected with the connecting rod (7), the ends of the connecting rods (7) away from the moving blocks (6) are rotatably connected with the both ends of the two limiting plates (5) on one side, one end of the four moving blocks (6) is provided with the first spring (8), and the first sliding slot is provided with the adjusting assembly for adjusting the pre-tightening force of the first spring (8); The lower die block (2) is provided with a cleaning assembly for cleaning the inside of the forming cavity (3). The adjusting assembly comprises four sliding blocks (9), the four sliding blocks (9) are respectively arranged at one end of the four first springs (8) away from the moving blocks (6), one end of the four sliding blocks (9) away from the first spring (8) is provided with the slide rod (10), and the four slide rods (10) are respectively slidably connected to the four peripheries of the lower die block (2), and the four peripheries of the lower die block (2) are provided with the limiting assembly for limiting the slide rod (10).

2. The anti-clash mechanism of claim 1, wherein: The cleaning assembly comprises four first piston rods (11), the four first piston rods (11) are respectively arranged at the four peripheries of the lower die block (2), one end of the four first piston rods (11) is provided with a hollow tube, and the other end of the four hollow tubes away from the first piston rods (11) is arranged in the forming cavity (3), the four peripheries of the lower die block (2) are provided with the second sliding slot, the four first piston rods (11) are slidably connected with the second piston rod (12) inside, the four second piston rods (12) are respectively slidably connected in the four second sliding slots, and the second spring (13) is arranged between one end of the four first piston rods (11) and one end of the four second piston rods (12).

3. The anti-clash mechanism of claim 1, wherein: The limiting assembly comprises four supporting plates, the four supporting plates are respectively arranged at the four peripheries of the lower die block (2), the four supporting plates are slidably connected with the limiting rod (14) inside, a row of limiting holes are formed in the four slide rods (10), the four limiting rods (14) are slidably connected in the limiting holes, and the limiting disc is arranged on one end of the four limiting rods (14), and the third spring (15) is arranged between the four limiting discs and the four supporting plates.

4. The anti-clash mechanism of claim 2, wherein: One end of the four slide rods (10) is provided with the first pull ring, and one end of the four limiting rods (14) is provided with the second pull ring.

5. The anti-clash mechanism of claim 4, wherein: The inside of one end of the four hollow tubes close to the forming cavity (3) is mounted with the check valve.

6. The anti-clash mechanism of claim 3, wherein: ​

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