A precision ejection mechanism

Abstract

The utility model provides a kind of precision ejection mechanism, it is related to ejection mechanism technical field.The precision ejection mechanism, including upper die and lower die, upper die and lower die are used in conjunction, upper die and lower die are provided with dome lock mechanism between, dome lock mechanism is used to position upper die and lower die;Dome lock mechanism includes first screw rod, convex dome lock, concave dome lock and second screw rod, first screw rod is installed in the four corners of the top of upper die, convex dome lock is installed in the four corners of the bottom of upper die.The precision ejection mechanism, by setting dome lock mechanism between upper die and lower die and cooperating positioning, the accurate positioning operation of mould can be realized, it can also prevent displacement or loosening of mould during use, not only can guarantee the machining precision and quality of product, but also can prolong the service life of mould, improve work efficiency, be favorable to practical application.

Description

Technical Field

[0001] This utility model relates to the field of mold ejection mechanism technology, specifically a precision mold ejection mechanism. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. A mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the shaping of objects by changing the physical state of the material being molded.

[0003] However, existing molds often use guide pillars as positioning structures, which are not very accurate and have certain deviations, resulting in inaccurate demolding. For products with high appearance requirements, scratches are easily caused, especially for plastic products with textured surfaces, which is not conducive to practical applications.

[0004] A search revealed that Chinese utility model patent CN209021074U discloses a guide post and guide sleeve for mold alignment. It states that existing molds often use guide posts as positioning structures, but such guide posts and guide sleeves are expensive, have low precision, and are prone to deviation.

[0005] Therefore, those skilled in the art provide a precise ejection mechanism to solve the problems mentioned in the background art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a precise demolding mechanism, which solves the problem mentioned in the background art that existing molds often use guide pillars as positioning structures, which have low precision and certain deviations, resulting in inaccurate demolding. For products with high appearance requirements, this can easily lead to drag marks, especially for textured plastic products.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a precision mold ejection mechanism, comprising an upper mold and a lower mold, wherein the upper mold and the lower mold are used in conjunction, and a dome locking mechanism is provided between the upper mold and the lower mold, wherein the dome locking mechanism is used to position the upper mold and the lower mold; The dome lock mechanism includes a first screw, a convex dome lock, a concave dome lock, and a second screw. The first screw is installed at the four corners of the top of the upper mold, and the convex dome locks are installed at the four corners of the bottom of the upper mold. One end of each of the first screws extends into the interior of the corresponding convex dome lock and is threadedly connected to it. The concave dome locks are installed at the four corners of the top of the lower mold, and the second screw is installed at the four corners of the bottom of the lower mold. One end of each of the second screws extends into the interior of the corresponding concave dome lock and is threadedly connected to it. The bottom of each convex dome lock extends into the interior of the corresponding concave dome lock.

[0008] By using the above technical solution, a dome locking mechanism is set between the upper and lower molds for positioning, which can achieve precise positioning of the mold and prevent displacement or loosening of the mold during use. This not only ensures the processing accuracy and quality of the product, but also extends the service life of the mold, improves work efficiency, and is beneficial to practical applications.

[0009] Preferably, a connecting seat is fixedly installed at the bottom of the lower mold, and a base is fixedly installed at the bottom of the connecting seat.

[0010] The above technical solution allows for the stable placement of the lower mold using a base.

[0011] Preferably, the four corners of the bottom of the upper mold are provided with first mounting grooves for installing convex dome locks, and the four corners of the top of the upper mold are provided with first mounting holes for installing first screws, and the first mounting grooves and the first mounting holes communicate with each other.

[0012] The above technical solution allows for better installation of the convex dome lock using the first mounting groove, and better installation of the first screw using the first mounting hole.

[0013] Preferably, the four corners of the top of the lower mold are provided with second mounting grooves for installing concave dome locks, and the four corners of the bottom of the lower mold are provided with second mounting holes for installing second screws, and the second mounting grooves and the second mounting holes communicate with each other.

[0014] The above technical solution allows for better installation of the concave dome lock using the second mounting groove, and also allows for better installation of the second screw using the second mounting hole.

[0015] Preferably, the concave dome lock and the second mounting groove are interference fit.

[0016] The above technical solution can prevent displacement or loosening after positioning.

[0017] Preferably, the cross-section of the convex dome lock is a convex-shaped structure, and the cross-section of the concave dome lock is a concave-shaped structure.

[0018] By utilizing the above technical solution and the fit between the concave and convex structures, the bottom of the convex dome lock can be better inserted into the interior of the concave dome lock, thereby forming a positioning fit.

[0019] Preferably, both the ends of the first screw and the second screw are provided with an anti-loosening structure, which is a spring washer.

[0020] The above technical solution facilitates increased tightness between the first and second screws during use.

[0021] Preferably, the depth of the first mounting groove is equal to the height of the convex dome lock, and the diameter of the first mounting hole matches the outer diameter of the first screw.

[0022] The above technical solution facilitates better matching and installation of the convex dome lock and the first screw.

[0023] Preferably, the depth of the second mounting groove is equal to the height of the concave dome lock, and the diameter of the second mounting hole matches the outer diameter of the second screw.

[0024] The above technical solution facilitates better matching and installation of the concave dome lock and the second screw.

[0025] Preferably, the number of dome-locking mechanisms is at least two.

[0026] The above technical solution facilitates setting the quantity according to necessity.

[0027] This utility model provides a precise demolding mechanism, which has the following beneficial effects: This precision mold ejection mechanism, through the use of a dome locking mechanism between the upper and lower molds for precise positioning, enables accurate mold positioning operations and prevents mold displacement or loosening during use. This not only ensures the processing accuracy and quality of the product but also extends the mold's service life, improves work efficiency, and is beneficial for practical applications. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This utility model Figure 1 A sectional view.

[0030] Figure 3 This is a schematic diagram of the upper mold structure of this utility model.

[0031] Figure 4 This is a schematic diagram of the structure of the present invention after the upper mold has been removed.

[0032] Figure 5 This is a schematic diagram of the structure of the present invention after the upper mold, the first screw, and the convex dome lock have been removed.

[0033] Figure 6 This is a schematic diagram of the lower mold, connecting seat, and base structure of this utility model.

[0034] Figure 7 This is a schematic diagram of the dome lock mechanism of this utility model.

[0035] Figure 8 This utility model Figure 7 A sectional view.

[0036] Figure 9 This is a schematic diagram of the second screw and concave dome lock structure of this utility model.

[0037] Figure 10 This is a schematic diagram of the first screw and the convex dome lock structure of this utility model.

[0038] In the diagram: 1. Upper mold; 2. Lower mold; 3. First screw; 4. Convex dome lock; 5. Concave dome lock; 6. Second screw; 7. Connecting seat; 8. Base; 9. First mounting groove; 10. First mounting hole; 11. Second mounting groove; 12. Second mounting hole. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 This utility model embodiment provides a precision ejection mechanism, including an upper mold 1 and a lower mold 2. The upper mold 1 and the lower mold 2 are used together. A connecting seat 7 is fixedly installed at the bottom of the lower mold 2, and a base 8 is fixedly installed at the bottom of the connecting seat 7, so that the lower mold 2 can be stably placed using the base 8.

[0041] Reference Figure 2 , Figure 4 , Figure 7 , Figure 8 , Figure 9 and Figure 10A dome-locking mechanism is provided between the upper mold 1 and the lower mold 2 to position the upper mold 1 and the lower mold 2. The number of dome-locking mechanisms is at least two, allowing for adjustment based on necessity. Each dome-locking mechanism includes a first screw 3, a convex dome-lock 4, a concave dome-lock 5, and a second screw 6. The first screw 3 is installed at the four corners of the top of the upper mold 1, and the convex dome-lock 4 is installed at the four corners of the bottom of the upper mold 1. One end of each first screw 3 extends into the interior of the corresponding convex dome-lock 4 and is threadedly connected to it. This threaded connection between the first screw 3 and the convex dome-lock 4 allows for better installation of the convex dome-lock 4 at the four corners of the bottom of the upper mold 1. The concave dome locks 5 are installed at the four corners of the top of the lower mold 2, and the second screws 6 are installed at the four corners of the bottom of the lower mold 2. One end of each second screw 6 extends into the interior of the corresponding concave dome lock 5 and is threadedly connected to it. This threaded connection between the second screw 6 and the concave dome lock 5 allows for better installation of the concave dome locks 5 at the four corners of the top of the lower mold 2. Both the ends of the first screw 3 and the second screw 6 are equipped with anti-loosening structures, which are spring washers, to increase the tightness of the first screw 3 and the second screw 6 during use. The convex dome lock 4 has a convex cross-section, and the concave dome lock 5 has a concave cross-section. The bottom of each convex dome lock 4 extends into the interior of the corresponding concave dome lock 5. The fit between the convex and concave structures allows for better insertion of the bottom of the convex dome lock 4 into the interior of the concave dome lock 5, thus forming a positioning fit.

[0042] Reference Figure 3 and Figure 6In one aspect of this embodiment, the upper mold 1 has four first mounting grooves 9 at its bottom corners for mounting the convex dome lock 4, and four first mounting holes 10 at its top corners for mounting the first screw 3. The first mounting grooves 9 and the first mounting holes 10 communicate internally. The first mounting grooves 9 allow for better mounting of the convex dome lock 4, while the first mounting holes 10 allow for better mounting of the first screw 3. The depth of the first mounting groove 9 is equal to the height of the convex dome lock 4, and the diameter of the first mounting hole 10 matches the outer diameter of the first screw 3, facilitating a better matching and mounting of the convex dome lock 4 and the first screw 3. The lower mold 2 has four second mounting grooves 11 at its top corners for mounting the concave dome lock 5, allowing for better mounting of the concave dome lock 5. The concave dome lock 5 and the second mounting grooves 11 are interference fit, preventing displacement or loosening after positioning. The lower mold 2 has four corners at its bottom with second mounting holes 12 for installing the second screw 6. The second mounting groove 11 communicates with the interior of the second mounting holes 12. The second mounting holes 12 allow for better installation of the second screw 6. The depth of the second mounting groove 11 is equal to the height of the concave dome lock 5, and the diameter of the second mounting hole 12 matches the outer diameter of the second screw 6, facilitating a better matching and installation of the concave dome lock 5 and the second screw 6.

[0043] Working principle: In use, first insert the first screw 3 into the inside of the first mounting hole 10, then insert the convex dome lock 4 into the inside of the first mounting groove 9, and tighten the first screw 3 so that one end of the first screw 3 is threadedly connected to the convex dome lock 4, thereby stably installing the convex dome lock 4 on the four corners of the bottom of the upper mold 1.

[0044] Then, the second screw 6 is inserted into the second mounting hole 12, and the concave dome lock 5 is inserted into the second mounting groove 11. By tightening the second screw 6, one end of the second screw 6 is threadedly connected to the concave dome lock 5, thereby stably installing the concave dome lock 5 on the four corners of the top of the lower mold 2.

[0045] Next, align the convex dome locks 4 at the bottom corners of the upper mold 1 with the concave dome locks 5 at the top corners of the lower mold 2 for installation and positioning, so that the bottom of the convex dome locks 4 extends into the interior of the concave dome locks 5, and then the injection molding operation can begin.

[0046] By incorporating a dome-locking mechanism between the upper mold 1 and the lower mold 2 for precise positioning, accurate mold positioning can be achieved. This also prevents displacement or loosening of the mold during use, ensuring product processing accuracy and quality, extending mold life, improving work efficiency, and benefiting practical applications. Furthermore, during mold opening, the weight of the mold itself can cause one mold plate to sag, leading to imbalance and potential damage to the product's sides. Adding a dome-locking mechanism ensures precise mold positioning, balanced mold opening, and reduces the risk of product damage.

[0047] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision ejection mechanism, comprising an upper mold (1) and a lower mold (2), characterized in that, The upper mold (1) and the lower mold (2) are used together. A dome locking mechanism is provided between the upper mold (1) and the lower mold (2). The dome locking mechanism is used to position the upper mold (1) and the lower mold (2). The dome lock mechanism includes a first screw (3), a convex dome lock (4), a concave dome lock (5), and a second screw (6). The first screw (3) is installed at the four corners of the top of the upper mold (1), and the convex dome lock (4) is installed at the four corners of the bottom of the upper mold (1). One end of the first screw (3) extends into the interior of the corresponding convex dome lock (4) and is threadedly connected to the convex dome lock (4). The concave dome lock (5) is installed at the four corners of the top of the lower mold (2), and the second screw (6) is installed at the four corners of the bottom of the lower mold (2). One end of the second screw (6) extends into the interior of the corresponding concave dome lock (5) and is threadedly connected to the concave dome lock (5). The bottom of the convex dome lock (4) extends into the interior of the corresponding concave dome lock (5).

2. The precision ejection mechanism according to claim 1, characterized in that: A connecting seat (7) is fixedly installed at the bottom of the lower mold (2), and a base (8) is fixedly installed at the bottom of the connecting seat (7).

3. The precision ejection mechanism according to claim 1, characterized in that: The upper mold (1) has four corners at the bottom, each with a first mounting groove (9) for installing a convex dome lock (4), and four corners at the top of the upper mold (1) have a first mounting hole (10) for installing a first screw (3). The first mounting groove (9) and the first mounting hole (10) are connected internally.

4. The precision ejection mechanism according to claim 1, characterized in that: The lower mold (2) has four corners at the top for installing a concave dome lock (5) and four corners at the bottom for installing a second mounting hole (12) for installing a second screw (6). The second mounting groove (11) and the second mounting hole (12) are connected internally.

5. The precision ejection mechanism according to claim 4, characterized in that: The concave dome lock (5) and the second mounting groove (11) are interference fit.

6. The precision ejection mechanism according to claim 1, characterized in that: The cross-section of the convex dome lock (4) is a convex shape, and the cross-section of the concave dome lock (5) is a concave shape.

7. The precision demolding mechanism according to claim 1, characterized in that: Both the first screw (3) and the second screw (6) are provided with anti-loosening structures, which are spring washers.

8. The precision ejection mechanism according to claim 3, characterized in that: The depth of the first mounting groove (9) is equal to the height of the convex dome lock (4), and the diameter of the first mounting hole (10) matches the outer diameter of the first screw (3).

9. The precision demolding mechanism according to claim 4, characterized in that: The depth of the second mounting groove (11) is equal to the height of the concave dome lock (5), and the diameter of the second mounting hole (12) matches the outer diameter of the second screw (6).

10. The precision ejection mechanism according to claim 1, characterized in that: The number of dome-locking mechanisms is at least two.

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