Visual plastic mold facilitating material taking

By introducing combined structures such as elastic plates, springs, and poles into plastic molds, automated material collection is achieved, solving the problems of low efficiency, prone to errors and safety risks in the prior art, and improving production efficiency and product quality.

CN223266071UActive Publication Date: 2025-08-26KUNSHAN WOHAI DIE TECH CO LTD
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Patent Information

Application Number
CN202421699708.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-08-26
Estimated Expiration
2034-07-18

AI Technical Summary

Technical Problem

Existing plastic molds rely on manual operation during material removal, are inefficient and prone to human errors, which increase product scrapping rate and production costs, and have the risk of hand injuries, especially when dealing with sharp edges or high-temperature products.

Method used

A visual plastic mold is designed for easy material removal, using a combined structure of elastic plate, spring, top rod, top block, vertical rod, contact head and compression rod. When closing the mold, the compression spring pushes the top rod and top block into the fixed mold accommodation groove. When opening the mold, the product is automatically ejected using the spring return force to observe the material extraction process through the transparent plate.

Benefits of technology

The automatic ejection of the product is achieved, the risk of manual material collection is avoided, the efficiency and accuracy of material collection is improved, and human errors and scrapping rates are reduced.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223266071U_ABST
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Abstract

The visual plastic mold comprises a bottom plate, a base is fixedly installed in the center of the top of the bottom plate, a fixed mold is fixedly installed in the center of the top of the base, an elastic plate is arranged at the position, close to the center, in the base, and a spring is fixedly installed at the bottom of the elastic plate. The center of the top of the elastic plate is fixedly connected with two ejector rods. According to the visual plastic mold facilitating material taking, through the design of an elastic plate, springs, ejector rods, ejector blocks, vertical rods, contact heads and pressing rods, in the mold closing process, the two pressing rods move downwards along with a movable mold and make contact with the contact heads, then the elastic plate is compressed downwards, meanwhile, the four springs at the bottom of the elastic plate are compressed, and at the moment, the elastic plate drives the two ejector rods to move downwards; the ejector block is arranged in the containing groove of the fixed mold, enough space is provided for injection molding operation, after injection molding is completed, in the mold opening process, the pressing rod moves upwards along with rising of the movable mold, and the pressure on the elastic plate is relieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a visual plastic mold which is convenient for taking out materials. Background Art

[0002] A plastic mold is a tool used to manufacture plastic products. It determines the shape, size, and appearance quality of the plastic product. A plastic mold consists of different parts, including a movable mold and a fixed mold, which can move relative to each other. When the mold is closed, the plastic raw material is injected into the mold cavity and solidified under a certain temperature and pressure. The mold is then opened to remove the formed plastic product.

[0003] Existing plastic molds do have some significant design and functional deficiencies, particularly in the post-molding material removal process, which often relies heavily on manual labor. This manual process is not only inefficient but also prone to human error, increasing product scrap rates and production costs. During manual material removal, operators must manually remove the molded plastic product from the mold, which not only consumes considerable time and effort but also carries the risk of hand injuries, especially when handling sharp-edged or hot products. Therefore, we propose a visual plastic mold that facilitates material removal. Utility Model Content

[0004] The purpose of the present invention is to provide a visual plastic mold that is easy to remove materials, so as to solve the problem proposed in the above background technology that the material removal process often requires a large amount of manual operation. This manual material removal method is not only inefficient, but also prone to human errors, increasing the product scrap rate and production costs. During the manual material removal process, the operator needs to manually remove the molded plastic product from the mold, which not only consumes a lot of time and manpower, but also faces the risk of hand injury, especially when handling sharp edges or high-temperature products.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a visual plastic mold that is convenient for material removal, comprising a bottom plate, a base fixedly installed at the center of the top of the bottom plate, a fixed mold fixedly installed at the center of the top of the base, a spring plate provided in the center position of the base, a spring fixedly installed at the bottom of the spring plate, two ejector rods fixedly connected to the center of the top of the spring plate, a top block fixedly connected to the upper end of the ejector rod, vertical rods fixedly connected to both sides of the top of the spring plate, the upper ends of the vertical rods pass through the outside of the base and are fixedly connected to contact heads, a movable mold provided at the upper end of the fixed mold, a lifting plate fixedly installed on the top of the movable mold, and pressure rods fixedly connected to the upper ends of the two vertical rods at the bottom of the lifting plate.

[0006] Compared with the prior art, the beneficial effects of the present invention are:

[0007] The visual plastic mold for easy material removal is designed with a spring plate, spring, ejector rod, ejector block, vertical rod, contact head and pressure rod. During the mold closing process, the two pressure rods move downward with the movable mold and contact the contact head, thereby compressing the spring plate downward and the four springs at its bottom. At this time, the spring plate drives the two ejector rods to move downward, so that the ejector block is received in the receiving groove of the fixed mold, providing sufficient space for the injection molding operation. After the injection molding is completed, during the mold opening process, the pressure rod moves upward with the rise of the movable mold, relieving the pressure on the spring plate. At this time, due to the reset effect of the spring, the spring plate can be pushed to move upward, thereby causing the ejector rod to drive the ejector block to move upward, and ejecting the product from the inside of the lower cavity. This design not only realizes the automatic ejection of the product and avoids the risk of hand injury that may occur during manual material removal, but also greatly improves the efficiency and accuracy of material removal, reducing human errors and scrap rates. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the structure of the utility model;

[0009] Figure 2 This is a structural stereogram of the ejection mechanism of the utility model;

[0010] Figure 3 This is a bottom view of the structure of the spring plate of the utility model;

[0011] Figure 4 This is the main view of the structure of the utility model.

[0012] In the figure: 1. Bottom plate; 2. Base; 3. Fixed mold; 4. Spring plate; 5. Spring; 6. Slide groove; 7. Slider; 8. Ejector rod; 9. Ejector block; 10. Receiving groove; 11. Vertical rod; 12. Contact head; 13. Side plate; 14. Top plate; 15. Lifting plate; 16. Moving mold; 17. Cylinder; 18. Pressure rod; 19. Guide rod. DETAILED DESCRIPTION

[0013] 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.

[0014] See also Figure 1-4The utility model provides a technical solution: a visual plastic mold that is convenient for taking materials, comprising a bottom plate 1, a base 2 is fixedly installed at the center of the top of the bottom plate 1, a fixed mold 3 is fixedly installed at the center of the top of the base 2, a spring plate 4 is provided in the center position of the base 2, a spring 5 is fixedly installed at the bottom of the spring plate 4, two ejector rods 8 are fixedly connected to the center of the top of the spring plate 4, the upper end of the ejector rod 8 is fixedly connected to a top block 9, the top of the spring plate 4 is fixedly connected to the two sides of the top, the upper end of the vertical rod 11 passes through the outside of the base 2 and is fixedly connected to a contact head 12, a movable mold 16 is provided at the upper end of the fixed mold 3, a lifting plate 15 is fixedly installed on the top of the movable mold 16, and the bottom of the lifting plate 15 is fixedly connected to a pressure rod 18 corresponding to the upper end of the two vertical rods 11.

[0015] The front end and rear end of the center of both sides of the spring plate 4 are fixedly connected with sliders 7. The inner wall of the base 2 is provided with a slide groove 6 at one end of the four sliders 7. The opposite ends of the four sliders 7 arranged on both sides extend to the inside of the four slide grooves 6 and are slidably connected to the inner walls of the slide grooves 6 to ensure the stability and accuracy of the spring plate 4 in the vertical direction. It prevents the spring plate 4 from deflecting or shaking under the action of the spring 5, thereby ensuring that the ejector rod 8 and the ejector block 9 can accurately eject the product.

[0016] There are four springs 5, which are respectively located at the four corners of the bottom of the spring plate 4. The bottoms of the four springs 5 ​​are fixedly connected to the inner bottom of the base 2. The uniform distribution of the four springs 5 ​​provides stable support and reset force for the spring plate 4, ensuring that the spring plate 4 can smoothly descend when subjected to pressure from the pressure rod 18, and can quickly reset when the pressure is lost, pushing the ejector rod 8 and the ejector block 9 to eject the product.

[0017] A lower cavity and an upper cavity are respectively provided at the center of the top of the fixed mold 3 and the center of the bottom of the movable mold 16. Receiving grooves 10 are provided on both sides of the bottom of the lower cavity. The top of the ejector rod 8 passes through the base 2, the fixed mold 3, the receiving groove 10 and the interior of the lower cavity in sequence. The receiving groove 10 can accommodate the ejector block 9. When taking the material, the ejector block 9 leaves the receiving groove 10 and enters the lower cavity to eject the product.

[0018] The two sides of the top of the bottom plate 1 are fixedly connected to the side plates 13, the tops of the two side plates 13 are fixedly connected to the top plate 14, and the cylinders 17 are fixedly installed on both sides of the top of the top plate 14. The cylinder 17 is fixedly connected to the piston rod through the output end at the bottom. The lower ends of the two piston rods pass through the outside of the top plate 14 and are fixedly connected to the two sides of the top of the lifting plate 15. Through the cooperation of the cylinder 17 and the piston rod, precise control of the lifting plate 15 and the movable mold 16 is achieved.

[0019] Guide rods 19 are fixedly installed at the four corners of the top of the base plate 1. The upper ends of the four guide rods 19 pass through the outside of the lifting plate 15 and are fixedly connected to the four corners of the bottom of the top plate 14 respectively. The guide rods 19 guide and support the lifting plate 15 to ensure the stability and accuracy of the lifting plate 15 during the lifting process.

[0020] Transparent panels are fixedly mounted near the bottom center of the front surface of the movable mold 16 and the top center of the front surface of the fixed mold 3, allowing visualization of the working process inside the mold. Operators can observe the molding process of the product and the flow of the plastic material through the transparent panels, allowing them to identify and resolve problems promptly.

[0021] Working principle: First, before the start of injection molding, the movable mold 16 and the fixed mold 3 are in a separated state. At this time, the ejector rod 8 and the ejector block 9 are at the highest point under the reset force of the spring 5. The operator controls the action of the cylinder 17 through an external device. The piston rod of the cylinder 17 pushes the lifting plate 15 down, thereby driving the movable mold 16 to move toward the fixed mold 3 until the movable mold 16 and the fixed mold 3 are tightly fitted to form a closed injection molding space. The lifting plate 15 simultaneously drives the pressure rods 18 on both sides to move downward and contact with the tops of the two contact heads 12. The lifting plate 15 continues to move downward and contacts The head 12 is subjected to force and drives the vertical rod 11 to move the spring plate 4 downward inside the base 2. At the same time, the spring plate 4 compresses the spring 5. The spring plate 4 drives the ejector rod 8 to move the ejector block 9 downward and allow the ejector block 9 to enter the receiving groove 10. During the injection molding process, the molten plastic material is injected into the upper and lower cavities formed by the movable mold 16 and the fixed mold 3 through the injection molding equipment. As the plastic material cools and solidifies, the product is gradually formed. After the injection molding is completed, the operator controls the cylinder 17 again to cause the piston rod to pull the lifting plate 15 upward, thereby driving the movable mold 16 to separate from the fixed mold 3. During the separation process, the pressure rod 18 gradually moves away from the contact head 12 as the movable mold 16 rises. At this time, the restoring force of the spring 5 begins to play a role, pushing the spring plate 4 to move upward. Since the spring plate 4 is fixedly connected to the ejector rod 8, the ejector rod 8 and the ejector block 9 also move upward. When the ejector block 9 moves upward to leave the receiving groove 10 and enter the lower cavity, they will contact the molded plastic product and eject it. At this time, the operator can observe the entire material removal process through the transparent plate to ensure that the product is ejected accurately.

[0022] In summary, the visual plastic mold that is easy to take out materials is designed with a spring plate 4, a spring 5, a push rod 8, a push block 9, a vertical rod 11, a contact head 12 and a pressure rod 18. During the mold closing process, the two pressure rods 18 move downward with the movable mold 16 and contact the contact head 12, thereby compressing the spring plate 4 downward and compressing the four springs 5 ​​at its bottom. At this time, the spring plate 4 drives the two push rods 8 to move downward, so that the push block 9 is received in the receiving groove 10 of the fixed mold 3, providing sufficient space for the injection molding operation. After the injection molding is completed, during the mold opening process, the pressure rod 18 moves upward with the rise of the movable mold 16, relieving the pressure on the spring plate 4. At this time, due to the reset effect of the spring 5, the spring plate 4 can be pushed to move upward, thereby causing the push rod 8 to drive the push block 9 to move upward, and the product is ejected from the inside of the lower cavity. This design not only realizes the automatic ejection of the product, avoids the risk of hand injury that may occur during manual material taking, but also greatly improves the efficiency and accuracy of material taking, and reduces human errors and scrap rate.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] 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 visual plastic mold that facilitates material removal, comprising a base plate (1), characterized in that: A base (2) is fixedly installed at the center of the top of the bottom plate (1), a fixed mold (3) is fixedly installed at the center of the top of the base (2), a spring plate (4) is provided at a central position in the base (2), a spring (5) is fixedly installed at the bottom of the spring plate (4), two push rods (8) are fixedly connected at the center of the top of the spring plate (4), the upper ends of the push rods (8) are fixedly connected to a top block (9), the top of the spring plate (4) is fixedly connected to vertical rods (11) at both sides, the upper ends of the vertical rods (11) pass through the outside of the base (2) and are fixedly connected to a contact head (12), a movable mold (16) is provided at the upper end of the fixed mold (3), a lifting plate (15) is fixedly installed at the top of the movable mold (16), and the bottom of the lifting plate (15) is fixedly connected to a pressure rod (18) corresponding to the upper ends of the two vertical rods (11).

2. A visual plastic mold for easy material removal according to claim 1, characterized in that: Slide blocks (7) are fixedly connected at the front end and the rear end of the center of both sides of the spring plate (4), and slide grooves (6) are respectively provided at one end of the four slide blocks (7) on both sides of the inner wall of the base (2), and the opposite ends of the four slide blocks (7) arranged on both sides extend into the interior of the four slide grooves (6) and are slidably connected to the inner walls of the slide grooves (6).

3. The visual plastic mold for facilitating material removal according to claim 1, characterized in that: The number of the springs (5) is four, and the four springs (5) are respectively located at the four corners of the bottom of the spring plate (4), and the bottoms of the four springs (5) are fixedly connected to the inner bottom of the base (2).

4. The visual plastic mold for facilitating material removal according to claim 1, characterized in that: A lower cavity and an upper cavity are respectively formed at the center of the top of the fixed mold (3) and the center of the bottom of the movable mold (16), and accommodating grooves (10) are formed on both sides of the bottom of the lower cavity. The top of the ejector rod (8) passes through the base (2), the fixed mold (3), the accommodating groove (10) and the interior of the lower cavity in sequence.

5. The visual plastic mold for facilitating material removal according to claim 1, characterized in that: The two sides of the top of the bottom plate (1) are fixedly connected to the side plates (13), the tops of the two side plates (13) are fixedly connected to the top plate (14), and the top of the top plate (14) is fixedly installed with cylinders (17) at both sides. The cylinders (17) are fixedly connected to piston rods through the output ends at the bottom thereof, and the lower ends of the two piston rods pass through the outside of the top plate (14) and are fixedly connected to the two sides of the top of the lifting plate (15).

6. The visual plastic mold for facilitating material removal according to claim 1, characterized in that: Guide rods (19) are fixedly installed at the four corners of the top of the bottom plate (1), and the upper ends of the four guide rods (19) pass through the outside of the lifting plate (15) and are fixedly connected to the four corners of the bottom of the top plate (14).

7. The visual plastic mold for facilitating material removal according to claim 1, characterized in that: A transparent plate is fixedly installed at a position close to the bottom of the center of the front surface of the movable mold (16) and a position close to the top of the center of the front surface of the fixed mold (3).