Mirror frame injection molding demolding mechanism and mirror frame demolding device
Patent Information
- Application Number
- CN202522794004.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-12-29
AI Technical Summary
首先，在注塑成型阶段，第一成型块与第二成型块呈邻近贴合状态，此时第一成型块的第一成型区与第二成型块的第二成型区精准对接并形成完整的密闭型腔，该型腔的轮廓与待成型镜框的外形相适配，为镜框的注塑成型提供了稳定的成型空间。进而使得可以在第一成型区及第二成型区形成的成型空间对镜框进行注塑成型。接着，由于推拉件的另一端与成型后的镜框直接连接，使得推拉件与镜框形成稳定的连接关系。当镜框完成注塑成型后，进入脱模阶段，此时脱模组件开始工作。具体地，驱动器启动并输出动力，由于驱动器的动力输出端连接于第二成型块背离第二成型区的一侧，且推拉件的一端固定连接于驱动器、另一端穿过过孔连接于镜框，因此驱动器输出的动力会同步作用于第二成型块和推拉件：一方面，驱动器带动第二成型块向背离第一成型块的方向移动，使得原本贴合的第一成型块与第二成型块逐渐分离，第一成型区与第二成型区形成的密闭型腔被打开，解除了成型块对镜框的侧向限位；然后，驱动器带动推拉件同步向远离第一成型块的方向移动，而推拉件远离驱动器的一端与镜框固定连接，因此推拉件会对镜框产生一个平稳的拉力，将镜框从第一成型区中平稳拉出，完成脱模动作。通过驱动器带动推拉件对镜框完成脱模的操作，避免了人工在对镜框进行脱模时而导致眼镜框出现刮伤、变形的情况。
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Figure CN224781199U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of eyeglass frame manufacturing, and in particular to an injection molding demolding mechanism and demolding equipment for eyeglass frames. Background Technology
[0002] In the eyewear manufacturing industry, eyeglass frames are a core component of eyewear, and their molding quality directly affects the wearing comfort, aesthetics, and structural stability of the glasses. With the continuous development of injection molding technology, it has been widely used in the mass production of eyeglass frames due to its advantages such as high molding efficiency, good product consistency, and low production cost. In the injection molding process, molten plastic raw material is typically injected into a pre-designed mold cavity for the eyeglass frame. After the plastic raw material cools and solidifies to form a finished eyeglass frame conforming to specifications, a demolding mechanism removes the molded frame from the mold, completing the entire molding process.
[0003] Currently, existing demolding mechanisms for eyeglass frames mainly fall into two categories: manual demolding and manual removal. In manual demolding, after injection molding, operators manually open the mold and use simple tools such as pry bars and suction cups to remove the eyeglass frames from the cavity. This method not only consumes a significant amount of labor but also has extremely low demolding efficiency, making it difficult to meet the needs of large-scale mass production. Furthermore, the difficulty in precisely controlling the force applied during manual operation easily leads to defects such as scratches and deformation of the eyeglass frames, severely impacting product yield. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a convenient mold release mechanism and equipment for molded eyeglass frames.
[0005] The objective of this utility model is achieved through the following technical solution: A mirror frame injection molding demolding mechanism includes a molding component and a demolding component. The molding component includes a first molding block and a second molding block, which are arranged adjacent to each other. A first molding area is formed on one side of the first molding block, and a second molding area is formed on one side of the second molding block. The first molding area and the second molding area are connected. Both the first molding area and the second molding area are used for injection molding mirror frames. The second molding area has a through hole. The demolding component includes a driver and a push-pull component. The power output end of the driver is connected to the side of the second molding block away from the second molding area. One end of the push-pull component is fixedly connected to the driver, and the other end of the push-pull component passes through the through hole and is connected to the mirror frame. When the mirror frame is injection molded, the driver drives the push-pull component and the second molding block away from the first molding block.
[0006] In one embodiment, the first molding area has a first injection groove, the second molding area has a second injection groove, and the first injection groove and the second injection groove are connected.
[0007] In one embodiment, the second forming area is provided with a first limiting block and a second limiting block, the first limiting block and the second limiting block are disposed opposite to each other, and the end of the push-pull member near the second forming area is disposed between the first limiting block and the second limiting block.
[0008] In one embodiment, the first molding area is disposed on the side close to the second molding block, and the second molding area is disposed on the side close to the first molding block.
[0009] In one embodiment, a first fixing block and a second fixing block are provided at one end of the push-pull member near the first forming area. The first fixing block and the second fixing block are arranged opposite to each other. The first fixing block is adjacent to the first limiting block, and the second fixing block is adjacent to the second limiting block. The first fixing block is used to fix one side of the frame, and the second fixing block is used to fix the other side of the frame.
[0010] In one embodiment, the demolding assembly further includes a frame plate, the push-pull member is disposed on the frame plate, the driver includes a first driver and a second driver, the first driver and the second driver are disposed opposite to each other on the frame plate, the second molding block has a first fixing hole and a second fixing hole on the side near the demolding assembly, the first driver is connected to the first fixing hole, and the second driver is connected to the second fixing hole.
[0011] In one embodiment, the projected shapes of the first injection groove and the second injection groove are equal to the projected shape of the frame.
[0012] In one embodiment, the first molding block and the second molding block are integrally molded structures.
[0013] A frame demolding device includes the frame injection molding demolding mechanism described in any of the above embodiments.
[0014] Compared with the prior art, the present invention has at least the following advantages: First, during the injection molding stage, the first and second molding blocks are in a close-fitting state. At this point, the first molding area of the first molding block and the second molding area of the second molding block precisely align to form a complete, sealed cavity. The contour of this cavity matches the shape of the frame to be molded, providing a stable molding space for the frame's injection molding. This allows the frame to be injection molded within the molding space formed by the first and second molding areas. Next, since the other end of the push-pull component is directly connected to the molded frame, a stable connection is formed between the push-pull component and the frame. After the frame's injection molding is complete, the demolding stage begins, at which point the demolding components activate. Specifically, the actuator starts and outputs power. Since the power output end of the actuator is connected to the side of the second molding block away from the second molding area, and one end of the push-pull component is fixedly connected to the actuator, while the other end passes through a hole and is connected to the frame, the power output by the actuator acts synchronously on the second molding block and the push-pull component. On the one hand, the actuator drives the second molding block to move away from the first molding block, causing the originally fitted first molding block and the second molding block to gradually separate, opening the sealed cavity formed by the first molding area and the second molding area, and releasing the lateral restriction of the molding block on the frame. Then, the actuator drives the push-pull component to move synchronously away from the first molding block. Since the end of the push-pull component away from the actuator is fixedly connected to the frame, the push-pull component will generate a smooth pulling force on the frame, smoothly pulling the frame out of the first molding area, completing the demolding action. By using the actuator to drive the push-pull component to complete the demolding operation of the frame, the scratches and deformation of the eyeglass frame caused by manual demolding are avoided. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the mold release mechanism for the mirror frame injection molding in one embodiment; Figure 2 This is a schematic diagram of another structure of the mirror frame injection molding demolding mechanism in one embodiment; Figure 3 This is a schematic diagram of the structure of the second molding block in one embodiment; Figure 4 This is a schematic diagram of the push-pull component in one embodiment.
[0017] Reference numerals: 10, Mirror frame injection molding demolding mechanism; 100, Molding component; 110, First molding block; 1110, First molding area; 1111, First injection groove; 120, Second molding block; 1210, Second molding area; 1211, Second injection groove; 1212, Second limiting block; 1213, First limiting block; 1214, First through hole; 1215, Second through hole; 200, Demolding component; 210, Driver; 2110, First driver; 2120, Second driver; 220, Push-pull component; 2210, First fixing block; 2220, Second fixing block; 230, Frame plate. Detailed Implementation
[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0021] Please see Figures 1 to 4 To better understand the frame injection molding demolding mechanism 10 of this application, the following further explanation of the frame injection molding demolding mechanism 10 is provided: One embodiment of a mirror frame injection molding demolding mechanism 10 includes a molding component 100 and a demolding component 200. The molding component 100 includes a first molding block 110 and a second molding block 120, which are disposed adjacent to each other. A first molding area 1110 is formed on one side of the first molding block 110, and a second molding area 1210 is formed on one side of the second molding block 120. The first molding area 1110 and the second molding area 1210 are connected, and both the first molding area 1110 and the second molding area 1210 are used for injection molding. A molded eyeglass frame is formed; the second molding area 1210 has a through hole; the demolding assembly 200 includes a driver 210 and a push-pull member 220; the power output end of the driver 210 is connected to the side of the second molding block 120 away from the second molding area 1210; one end of the push-pull member 220 is fixedly connected to the driver 210; the other end of the push-pull member 220 passes through the through hole and is connected to the eyeglass frame; when the eyeglass frame is injection molded, the driver 210 drives the push-pull member 220 and the second molding block 120 away from the first molding block 110.
[0022] In this embodiment, firstly, during the injection molding stage, the first molding block 110 and the second molding block 120 are in a close-fitting state. At this time, the first molding area 1110 of the first molding block 110 and the second molding area 1210 of the second molding block 120 are precisely aligned to form a complete sealed cavity. The contour of this cavity matches the shape of the frame to be molded, providing a stable molding space for the injection molding of the frame. This allows the frame to be injection molded within the molding space formed by the first molding area 1110 and the second molding area 1210. Next, since the other end of the push-pull member 220 is directly connected to the molded frame, a stable connection is formed between the push-pull member 220 and the frame. After the frame is injection molded, it enters the demolding stage, at which time the demolding assembly 200 begins to operate. Specifically, the driver 210 starts and outputs power. Since the power output end of the driver 210 is connected to the side of the second molding block 120 away from the second molding area 1210, and one end of the push-pull member 220 is fixedly connected to the driver 210 and the other end passes through the through hole and is connected to the frame, the power output by the driver 210 will act synchronously on the second molding block 120 and the push-pull member 220: on the one hand, the driver 210 drives the second molding block 120 to move away from the first molding block 110, so that the originally fitted first molding block 110 is moved away from the first molding area 110. The molding block 110 and the second molding block 120 gradually separate, opening the sealed cavity formed by the first molding area 1110 and the second molding area 1210, thus releasing the lateral restraint of the molding block on the frame. Then, the driver 210 drives the push-pull component 220 to move synchronously away from the first molding block 110. Since the end of the push-pull component 220 away from the driver 210 is fixedly connected to the frame, the push-pull component 220 will generate a smooth pulling force on the frame, smoothly pulling the frame out of the first molding area 1110, completing the demolding action. By having the driver 210 drive the push-pull component 220 to complete the demolding operation, the demolding of the frame is avoided, preventing scratches and deformation of the eyeglass frame caused by manual demolding.
[0023] It should be noted that the injection molding of the first molding zone 1110 and the second molding zone 1210 into a mirror frame using plastic raw materials is an existing technology, and will not be elaborated on here.
[0024] In one embodiment, the first molding area 1110 has a first injection groove 1111, and the second molding area 1210 has a second injection groove 1211, with the first injection groove 1111 and the second injection groove 1211 connected. It is understood that... In one embodiment, the second molding area 1210 is provided with a first limiting block 1213 and a second limiting block 1212, which are disposed opposite to each other. The end of the push-pull member 220 near the second molding area 1210 is disposed between the first limiting block 1213 and the second limiting block 1212. It is understood that the presence of the first limiting block 1213 and the second limiting block 1212 provides precise guidance and limiting for the push-pull member 220. During demolding, the push-pull member 220 moves under the drive of the driver 210, and its end near the second molding area 1210 is restricted between the first limiting block 1213 and the second limiting block 1212. This ensures that the push-pull member 220 can only move along a preset path and will not deviate or wobble.
[0025] In one embodiment, the first molding area 1110 is located on the side near the second molding block 120, and the second molding area 1210 is located on the side near the first molding block 110. It is understood that the first molding block 110 and the second molding block 120 can fit together more tightly during injection molding, forming a more complete and sealed cavity. This helps ensure that the plastic material is fully filled in the cavity, avoiding defects such as incomplete injection or air bubbles, thereby improving the molding quality and appearance of the frame. Furthermore, this arrangement also facilitates the demolding assembly 200 in smoothly pulling the frame out of the cavity during the demolding stage, improving demolding efficiency.
[0026] In one embodiment, the push-pull member 220 is provided with a first fixing block 2210 and a second fixing block 2220 at one end near the first molding area 1110. The first fixing block 2210 and the second fixing block 2220 are arranged opposite to each other, with the first fixing block 2210 adjacent to the first limiting block 1213 and the second fixing block 2220 adjacent to the second limiting block 1212. The first fixing block 2210 is used to fix one side of the frame, and the second fixing block 2220 is used to fix the other side of the frame. By providing the first fixing block 2210 and the second fixing block 2220, the push-pull member 220 can be more securely connected to the frame. During the demolding process, when the push-pull member 220 is pulled by the driver 210, the first fixing block 2210 and the second fixing block 2220 will fix and support it from both sides of the frame respectively, preventing the frame from deforming or being damaged during demolding. This stable connection method helps to improve the success rate of demolding and the finished product of the frame. In one embodiment, a first fixing block 2210 and a second fixing block 2220 are provided at one end of the push-pull member 220 near the first molding area 1110. The first fixing block 2210 and the second fixing block 2220 are arranged opposite to each other, with the first fixing block 2210 adjacent to the first limiting block 1213 and the second fixing block 2220 adjacent to the second limiting block 1212. The first fixing block 2210 is used to fix one side of the frame, and the second fixing block 2220 is used to fix the other side of the frame. It is understood that during the injection molding process of the frame, the first fixing block 2210 and the second fixing block 2220 can securely fix the frame from both sides. When the driver 210 moves the push-pull member 220, the first fixing block 2210 and the second fixing block 2220 apply forces synchronously, ensuring that the frame is subjected to uniform force during demolding and will not deform or be damaged due to uneven force on one side. This design effectively improves the stability of demolding and the quality of the finished frame.
[0027] In one embodiment, the demolding assembly 200 further includes a frame plate 230, the push-pull member 220 is disposed on the frame plate 230, and the driver 210 includes a first driver 2110 and a second driver 2120, both of which are disposed opposite to each other on the frame plate 230. The second molding block 120 has a first fixing hole 1214 and a second fixing hole 1215 on the side near the demolding assembly 200. The first driver 2110 is connected to the first fixing hole 1215, and the second driver 2120 is connected to the second fixing hole 1215. It can be understood that by setting the frame plate 230 as a support structure, a stable mounting base can be provided for the push-pull member 220 and the driver 210. The first driver 2110 and the second driver 2120 are disposed opposite to each other on the frame plate 230 and are connected to the second molding block 120 through the first fixing hole 1214 and the second fixing hole 1215. This symmetrical layout makes the transmission of driving force more uniform and further improves the stability of the demolding process.
[0028] In one embodiment, the projected shapes of the first injection groove 1111 and the second injection groove 1211 are identical to the projected shape of the eyeglass frame. This design ensures that the molten plastic material completely fills the first and second injection grooves 1111 and 1211 when injected into the mold cavity, thus forming a shape perfectly consistent with the eyeglass frame design. This not only improves the molding accuracy of the eyeglass frame but also reduces subsequent processing steps and lowers production costs.
[0029] In one embodiment, the first molding block 110 and the second molding block 120 are integrally molded structures. It is understood that designing the first molding block 110 and the second molding block 120 as an integrally molded structure can significantly enhance the overall strength and rigidity of the molding assembly 100. During injection molding, the integrally molded structure can effectively resist the high-pressure impact of molten plastic raw materials, avoiding dimensional deviations in the frame caused by deformation of the molding blocks. Simultaneously, this design simplifies the mold manufacturing process and improves production efficiency.
[0030] This application also includes a frame demolding device, comprising the frame injection molding demolding mechanism 10 described in any of the above embodiments.
[0031] Compared with the prior art, the present invention has at least the following advantages: First, during the injection molding stage, the first molding block 110 and the second molding block 120 are in a close-fitting state. At this time, the first molding area 1110 of the first molding block 110 and the second molding area 1210 of the second molding block 120 are precisely aligned to form a complete closed cavity. The contour of this cavity matches the shape of the frame to be molded, providing a stable molding space for the injection molding of the frame. This allows the frame to be injection molded within the molding space formed by the first molding area 1110 and the second molding area 1210. Next, since the other end of the push-pull component 220 is directly connected to the molded frame, a stable connection is formed between the push-pull component 220 and the frame. After the frame is injection molded, it enters the demolding stage, at which time the demolding assembly 200 begins to operate. Specifically, the driver 210 starts and outputs power. Since the power output end of the driver 210 is connected to the side of the second molding block 120 away from the second molding area 1210, and one end of the push-pull member 220 is fixedly connected to the driver 210 and the other end passes through the through hole and is connected to the frame, the power output by the driver 210 will act synchronously on the second molding block 120 and the push-pull member 220: on the one hand, the driver 210 drives the second molding block 120 to move away from the first molding block 110, so that the originally fitted first molding block 110 is moved away from the first molding area 110. The molding block 110 and the second molding block 120 gradually separate, opening the sealed cavity formed by the first molding area 1110 and the second molding area 1210, thus releasing the lateral restraint of the molding block on the frame. Then, the driver 210 drives the push-pull component 220 to move synchronously away from the first molding block 110. Since the end of the push-pull component 220 away from the driver 210 is fixedly connected to the frame, the push-pull component 220 will generate a smooth pulling force on the frame, smoothly pulling the frame out of the first molding area 1110, completing the demolding action. By having the driver 210 drive the push-pull component 220 to complete the demolding operation, the demolding of the frame is avoided, preventing scratches and deformation of the eyeglass frame caused by manual demolding.
[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A demolding mechanism for injection molding of mirror frames, characterized in that, The device includes a molding assembly and a demolding assembly. The molding assembly includes a first molding block and a second molding block, which are arranged adjacent to each other. A first molding area is formed on one side of the first molding block, and a second molding area is formed on one side of the second molding block. The first molding area and the second molding area are connected. Both the first molding area and the second molding area are used for injection molding a mirror frame. The second molding area has a through hole. The demolding assembly includes a driver and a push-pull component. The power output end of the driver is connected to the side of the second molding block away from the second molding area. One end of the push-pull component is fixedly connected to the driver, and the other end of the push-pull component passes through the through hole and is connected to the mirror frame. When the mirror frame is injection molded, the driver drives the push-pull component and the second molding block away from the first molding block.
2. The frame injection molding demolding mechanism according to claim 1, characterized in that, The first molding area has a first injection groove, and the second molding area has a second injection groove, and the first injection groove and the second injection groove are connected.
3. The frame injection molding demolding mechanism according to claim 1, characterized in that, The second forming area is provided with a first limiting block and a second limiting block, the first limiting block and the second limiting block are arranged opposite to each other, and the end of the push-pull member near the second forming area is arranged between the first limiting block and the second limiting block.
4. The frame injection molding demolding mechanism according to claim 1, characterized in that, The first molding area is located on the side close to the second molding block, and the second molding area is located on the side close to the first molding block.
5. The mirror frame injection molding demolding mechanism according to claim 3, characterized in that, The push-pull member is provided with a first fixing block and a second fixing block at one end near the first forming area. The first fixing block and the second fixing block are arranged opposite to each other. The first fixing block is adjacent to the first limiting block, and the second fixing block is adjacent to the second limiting block. The first fixing block is used to fix one side of the frame, and the second fixing block is used to fix the other side of the frame.
6. The mirror frame injection molding demolding mechanism according to claim 1, characterized in that, The demolding assembly further includes a frame plate, the push-pull component is disposed on the frame plate, the driver includes a first driver and a second driver, the first driver and the second driver are disposed opposite to each other on the frame plate, the second molding block has a first fixing hole and a second fixing hole on the side near the demolding assembly, the first driver is connected to the first fixing hole, and the second driver is connected to the second fixing hole.
7. The frame injection molding demolding mechanism according to claim 2, characterized in that, The projected shapes of the first injection molding groove and the second injection molding groove are equal to the projected shape of the mirror frame.
8. The mirror frame injection molding demolding mechanism according to claim 1, characterized in that, The first molding block and the second molding block are integrally molded structures.
9. A frame demolding device, characterized in that, Includes the frame injection molding demolding mechanism as described in claims 1 to 8.