Refrigerator glass door cover mold
By designing the penetrating rubber port and ejecting mechanism on the movable slider of the refrigerator glass door cover mold, the problem of difficulty in combining the penetrating rubber port and the slider in the prior art is solved, and the product aesthetics and mold maintenance efficiency are improved.
Patent Information
- Application Number
- CN202422123847.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The prior art cannot combine the infiltration rubber port with the slider with the removable type, which makes it difficult to remove rubber port marks and efficient maintenance of the mold when injection molding refrigerator glass door cover products.
A refrigerator glass door cover mold is designed. By embedding the penetrating rubber port on the movable slider, equipped with a thimble A and an ejection mechanism, the penetrating rubber port is removable and separated from the slider, ensuring that there is no trace of rubber port after the product is formed, and simplifying the cleaning and maintenance of the mold.
The refrigerator glass door cover product has been formed without any glue mouth marks, which improves the aesthetics of the product and the maintenance efficiency of the mold, and reduces the cost of manual trimming of the glue mouth.
Smart Images
Figure CN222987452U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a refrigerator glass door cover mold. Background Art
[0002] An injection mold is a tool for producing plastic products. It consists of multiple precisely matched components and can inject molten plastic into the mold under high pressure. After cooling and solidifying, the required product is formed. In the design and manufacture of injection molds, the gate is an important component. The gate, also known as the sprue, is the part in the injection mold that guides the plastic melt into the mold cavity. Currently, the forms of gates include submarine gates, side gates, pin gates, fan gates, horn gates, etc. Different gate types are suitable for different products and production requirements. When injection molding a refrigerator glass door cover product, in order to meet the requirement of leaving no gate mark on the product appearance surface, a submarine gate form needs to be adopted. However, submarine gate injection molding usually has relatively high requirements for mold equipment.
[0003] In an injection mold, a slider is generally a component used to achieve lateral movement. It allows some parts in the mold to move horizontally when the mold is opened, thereby forming complex shapes or features, such as side holes or inclined planes. The design of the slider and the gate directly affects the injection production efficiency. A reasonable design can reduce the production cycle and improve the production benefit.
[0004] Therefore, in order to improve the aesthetic degree of the product and the operation efficiency, it is intended to design a submarine gate on the slider. However, due to the need for the slider to move, it is impossible to design an ejector pin inside the slider to effectively eject the submarine gate for the maintenance and cleaning of the mold. Moreover, it is also impossible to implement the design of a submarine gate on the slider by conventional methods. Summary of the Invention
[0005] The purpose of the utility model is to provide a refrigerator glass door cover mold to overcome the problem that the prior art cannot detachably combine the submarine gate with the slider.
[0006] The purpose of the utility model can be achieved by the following technical solutions:
[0007] The technical solution of the utility model is to provide a refrigerator glass door cover mold, including:
[0008] A mold;
[0009] B mold: provided with a movable slider that slides horizontally, a submarine gate embedded in the upper surface of the movable slider and used for guiding injection, an ejector pin A arranged below the submarine gate and passing through the bottom of the movable slider, an ejection mechanism for ejecting the ejector pin A, and a reset mechanism arranged at the bottom of the movable slider and used for resetting the ejector pin A;
[0010] The A mold and the B mold form a cavity for injection molding the refrigerator glass door cover product.
[0011] When the mold is closed, the movable slider slides to connect the submarine gate with the cavity, and the ejector pin A and the ejection mechanism are not on the same vertical line.
[0012] When the mold is opened, the movable slider slides to make the ejector pin A and the ejection mechanism on the same vertical line. The ejection mechanism is configured to push up the ejector pin A and the refrigerator glass door cover product, so that the submarine gate is separated from the movable slider and the refrigerator glass door cover product is separated from the cavity, thus completing the demolding of the submarine gate and the refrigerator glass door cover product.
[0013] In some specific embodiments, a first oil cylinder for the movable slider to slide is further provided on the B mold.
[0014] In some specific embodiments, the ejection mechanism includes a panel assembly that moves in the vertical direction, an ejector pin B provided on the panel assembly and used to abut against the ejector pin A, and several ejector pins C used to abut against the refrigerator glass door cover product.
[0015] In some specific embodiments, the ejection mechanism further includes a second oil cylinder provided at the bottom of the panel assembly and used for the movement of the panel assembly.
[0016] In some specific embodiments, the panel assembly includes an upper ejector plate and a lower ejector plate that overlap, and the ejector pin B and the ejector pins C respectively pass through the upper ejector plate and are provided on the lower ejector plate.
[0017] In some specific embodiments, there are two ejector pins C, which are respectively located below both sides of the cavity.
[0018] In some specific embodiments, the reset mechanism includes a pressing plate provided at the bottom of the movable slider. A through ejector pin hole is vertically opened on the pressing plate. A reset spring for surrounding the ejector pin A and a baffle abutting against the top end of the reset spring are provided in the ejector pin hole, and the bottom end of the reset spring abuts against the ejector pin A.
[0019] In some specific embodiments, the submarine gate includes a cavity in the horizontal direction, an inclined surface provided at the end of the cavity for guiding, and a block provided below the cavity for fitting with the movable slider.
[0020] In some specific embodiments, the upper surface of the submarine gate is flush with the upper surface of the movable slider.
[0021] In some specific embodiments, a positioning post for positioning the ejector pin A is provided on the A mold.
[0022] Compared with the prior art, the utility model has the following beneficial effects:
[0023] (1) By designing a submarine gate on the movable slider of the mold, the utility model enables the appearance surface of the refrigerator glass door cover product after molding to have no gate mark, improving the aesthetics of the product.
[0024] (2) By respectively designing a dynamic ejector pin A acting on the submarine gate and a static ejector pin B acting on the ejector pin A on the mold, that is, by designing a submarine gate and an ejector pin A on the same movable slider, the utility model realizes the separation of the submarine gate from the movable slider while demolding the refrigerator glass door cover product, eliminating the need for additional trimming of the gate and reducing labor costs. Description of the Drawings
[0025] Figure 1 It is a schematic structural diagram of the utility model in the mold-closed state.
[0026] Figure 2 It is a schematic structural diagram of the utility model in the mold-open state.
[0027] Figure 3 It is a schematic structural diagram of the utility model in the ejection state.
[0028] The labels in the figure are as follows:
[0029] 1 is the A mold, 2 is the B mold, 3 is the submarine gate, 4 is the first oil cylinder, 5 is the movable slider, 6 is the ejector pin A, 7 is the return spring, 8 is the ejector pin B, 9 is the refrigerator glass door cover product, 10 is the pressing plate, 11 is the panel assembly, 11-1 is the face ejector plate, 11-2 is the bottom ejector plate, and 12 is the ejector pin C. Detailed Embodiments
[0030] The following combines the drawings and specific embodiments to elaborate on the utility model in detail. This embodiment is implemented on the premise of the technical solution of the utility model, providing a detailed implementation method and specific operation process, but the protection scope of the utility model is not limited to the following embodiments.
[0031] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0032] The following combines the drawings to elaborate on some embodiments of the utility model in detail. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0033] In the following embodiments, if there is no specifically described functional component or structure, it means that they are all conventional components or conventional structures adopted in the art to achieve the corresponding functions.
[0034] Embodiment 1:
[0035] This embodiment provides a refrigerator glass door cover mold, including: an A mold 1 and a B mold 2 for forming a cavity for molding an injection-molded refrigerator glass door cover product 9. The B mold 2 includes a movable slider 5 that slides horizontally, a sub-gate 3 embedded in the upper surface of the movable slider 5 and used for guiding glue injection, a thimble A6 disposed below the sub-gate 3 and passing through the bottom of the movable slider 5, an ejection mechanism for jacking up the thimble A6, and a reset mechanism disposed at the bottom of the movable slider 5 and used for resetting the thimble A6.
[0036] As Figure 1 shown, when the mold is closed, the movable slider 5 slides close to the cavity until the sub-gate 3 is connected to the cavity, and the thimble A6 and the ejection mechanism are not on the same vertical line; as Figure 2 shown, when the mold is opened, the movable slider 5 slides away from the cavity until the thimble A6 and the ejection mechanism are on the same vertical line. The ejection mechanism jacks up the thimble A6 and the refrigerator glass door cover product 9, so that the sub-gate 3 is separated from the movable slider 5, and the refrigerator glass door cover product 9 is separated from the cavity, that is, the demolding of the sub-gate 3 and the refrigerator glass door cover product 9 is completed, as Figure 3 shown.
[0037] Based on the combination of the movable slider 5 and the sub-gate 3, this technical solution designs a thimble A6 on the movable slider 5, and by separately designing an ejection mechanism on the B mold 2 that can simultaneously eject the sub-gate 3 and the refrigerator glass door cover product 9 and separate them from the B mold 2, it overcomes the difficulties such as the inability to separate the sub-gate 3 from the movable slider 5 after the combination of the movable slider 5 and the sub-gate 3, and improves the aesthetics of the refrigerator glass door cover product 9 while also improving the operation efficiency.
[0038] The B mold 2 is also provided with a first oil cylinder 4 for the movable slider 5 to slide. Under the action of the first oil cylinder 4, the movable slider 5 is pushed to move horizontally.
[0039] The ejection mechanism includes a panel assembly 11 that moves in the vertical direction, an ejector pin B8 provided on the panel assembly 11 and used to abut against the ejector pin A6, a plurality of ejector pins C12 used to abut against the refrigerator glass door cover product 9, and a second oil cylinder provided at the bottom of the panel assembly 11 and used for the movement of the panel assembly 11. The panel assembly 11 includes an overlapping face ejector plate 11-1 and a bottom ejector plate 11-2, and the ejector pin B8 and the ejector pin C12 respectively pass through the face ejector plate 11-1 and are provided on the bottom ejector plate 11-2. There are two ejector pins C12, which are respectively located below both sides of the cavity. In the mold opening state, the ejector pin B8 and the ejector pin A6 are on the same vertical line. Therefore, under the action of the panel assembly 11, the ejector pin B8 can be lifted, so that the ejector pin B8 can push up the ejector pin A6 upward, and then the sub-gate 3 can be pushed up to be separated from the movable slider 5. At the same time, under the action of the panel assembly 11, the ejector pin C12 also pushes up the refrigerator glass door cover product 9 to be separated from the cavity, completing the demolding.
[0040] The reset mechanism includes a pressure plate 10 provided at the bottom of the movable slider 5. A through ejector pin hole is opened in the pressure plate 10 in the vertical direction. A reset spring 7 for surrounding the ejector pin A6 and a baffle abutting against the top end of the reset spring 7 are provided in the ejector pin hole. The bottom end of the reset spring 7 also abuts against the ejector pin A6. In the ejection state, when the ejector pin A6 is pushed up, the reset spring 7 is in a compressed state. After the ejection state ends, the panel assembly 11, the ejector pin B8, and the ejector pin C12 are retracted simultaneously, and the ejector pin A6 also returns to its original position under the action of the elastic force of the reset spring 7, so that the next production cycle can be carried out, further improving the operation efficiency.
[0041] In this technical solution, the function of the sub-gate 3 is to make the surface of the refrigerator glass door cover product 9 leave no traces after injection molding. To improve the operation efficiency, the sub-gate 3 is designed on the movable slider 5. The sub-gate 3 includes a cavity in the horizontal direction, an inclined surface provided at the end of the cavity for guiding, and a block provided below the cavity and used for fitting with the movable slider 5. The upper surface of the sub-gate 3 is flush with the upper surface of the movable slider 5. Exemplarily, the inclined surface faces the cavity direction, so as to achieve the purpose of guiding. The block is fitted into the card slot of the movable slider 5 to increase the contact surface between the sub-gate 3 and the movable slider 5, thereby stabilizing the movable slider 5 and the sub-gate 3.
[0042] A positioning column for positioning the ejector pin A6 is provided on the A mold 1 to improve the matching degree between the A mold 1 and the B mold 2.
[0043] When the mold is closed, the movable slider 5 slides horizontally towards the cavity under the push of the first oil cylinder 4 until the inclined surface of the submarine gate 3 is connected to the cavity. After the injection molding is completed, the mold is opened, and the movable slider 5 slides horizontally away from the cavity until the ejector pin A6 and the ejector pin B8 are on the same vertical line. The ejector pin B8 is pushed upward by the panel assembly 11 to push the ejector pin A6 upward, thereby pushing up the submarine gate 3 to separate it from the movable slider 5. At the same time, the ejector pin C12 is pushed upward by the panel assembly 11 to push up the refrigerator glass door cover product 9 to separate it from the cavity, completing the demolding. After the ejection mechanism retracts, the ejector pin A6 also retracts to its original position under the action of the elastic force of the return spring 7, so that the next production cycle can be carried out.
[0044] The above description of the embodiments is to enable those of ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present utility model is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art without departing from the scope of the present utility model according to the disclosure of the present utility model should be within the protection scope of the present utility model.
Claims
1. A refrigerator glass door cover mold, characterized in that: include: A-mode (1); The B mold (2) is provided with a movable slider (5) sliding in the horizontal direction, a glue inlet (3) embedded in the upper surface of the movable slider (5) and used for guiding glue injection, an ejector pin A (6) arranged below the glue inlet (3) and passing through the bottom of the movable slider (5), an ejection mechanism for ejecting the ejector pin A (6), and a reset mechanism arranged at the bottom of the movable slider (5) and used for resetting the ejector pin A (6); The A mold (1) and the B mold (2) form a mold cavity for injection molding a refrigerator glass door cover product (9). When the mold is closed, the movable slider (5) slides to the submerged glue port (3) to connect with the mold cavity, and the ejector pin A (6) and the ejection mechanism are not located on the same vertical line; When the mold is opened, the movable slider (5) slides until the ejector pin A (6) and the ejection mechanism are located on the same vertical line, and the ejection mechanism is configured to push the ejector pin A (6) and the refrigerator glass door cover product (9) upward, so that the submerged glue port (3) is separated from the movable slider (5), and the refrigerator glass door cover product (9) is separated from the cavity.
2. The refrigerator glass door cover mold according to claim 1, characterized in that: The B mold (2) is also provided with a first oil cylinder (4) for the movable slider (5) to slide.
3. The refrigerator glass door cover mold according to claim 1, characterized in that: The ejection mechanism comprises a panel assembly (11) that moves in a vertical direction, an ejector pin B (8) that is disposed on the panel assembly (11) and is used to abut against the ejector pin A (6), and a plurality of ejector pins C (12) that are used to abut against the refrigerator glass door cover product (9).
4. The refrigerator glass door cover mold according to claim 3, characterized in that: The ejection mechanism also includes a second oil cylinder which is arranged at the bottom of the panel assembly (11) and is used for moving the panel assembly (11).
5. The refrigerator glass door cover mold according to claim 4, characterized in that: The panel assembly (11) comprises an overlapping surface needle plate (11-1) and a bottom needle plate (11-2); the ejector pins B (8) and ejector pins C (12) respectively pass through the surface needle plate (11-1) and are arranged on the bottom needle plate (11-2).
6. The refrigerator glass door cover mold according to claim 5, characterized in that: There are two ejector pins C (12), which are respectively located below the two sides of the cavity.
7. The refrigerator glass door cover mold according to claim 1, characterized in that: The reset mechanism comprises a pressure plate (10) arranged at the bottom of the movable slider (5), a through ejector hole is provided on the pressure plate (10) in the vertical direction, a reset spring (7) for surrounding the ejector A (6) and a baffle abutting against the top end of the reset spring (7) are arranged in the ejector hole, and the bottom end of the reset spring (7) also abuts against the ejector A (6).
8. The refrigerator glass door cover mold according to claim 1, characterized in that: The submerged glue port (3) comprises a cavity along the horizontal direction, a slope provided at the end of the cavity and used for guiding, and a block provided below the cavity and used for engaging with the movable slider (5).
9. The refrigerator glass door cover mold according to claim 8, characterized in that: The upper surface of the submerged glue port (3) is flush with the upper surface of the movable slider (5).
10. The refrigerator glass door cover mold according to claim 1, characterized in that: The A mold (1) is provided with a positioning column for positioning the ejector pin A (6).