Die structure capable of producing two mobile phone protective sleeves at one time
By designing a mold structure that allows for two separate injection molding processes for mobile phone cases, the problems of high injection difficulty and low efficiency in existing molds have been solved, achieving high-efficiency production, improved appearance quality, and reduced costs.
Patent Information
- Application Number
- CN202420304907.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-02-19
AI Technical Summary
Existing mobile phone case molds suffer from problems such as high injection molding difficulty, low production efficiency, and high cost, especially the poor appearance and low production efficiency caused by the pure material non-painting process.
The design employs a mold structure for producing two mobile phone cases in one step, including a flow divider, hot nozzle, cold water jacket, glue inlet head, and cold slug well. By symmetrically arranging the hot nozzle, surrounding heating tube, and sealing ring, the material flowability and temperature uniformity are ensured, avoiding the effects of condensation and cold material, thereby improving production capacity and appearance quality.
This doubled production efficiency, reduced raw material waste and defect rates, improved product appearance quality, and lowered production costs.
Smart Images
Figure CN222309665U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of molds, in particular to a one-out-two mold structure for a mobile phone protective cover. Background Art
[0002] In the current smartphone market, most products are equipped with a 1:1 protective case and given to users for free. Since the price of these protective cases is relatively low, most of them are made of pure materials without spraying process.
[0003] The existing protective covers still have the following problems: 1. For protective covers, due to the poor fluidity of raw materials and the high difficulty of injection molding, it is easy to have appearance problems such as material shortage, shrinkage, air marks, color mixing, cold materials, etc.; 2. Most of the molds used for producing protective covers on the current market adopt a one-in-one mode, which has relatively low production efficiency and also increases production costs. Utility Model Content
[0004] The utility model aims to solve the above defects and provide a one-out-two mold structure for a mobile phone protective cover.
[0005] The purpose of the utility model is achieved in the following way: a mold structure with one outlet and two outlets for a mobile phone protective cover, comprising a diverter plate, a hot nozzle is provided at the lower end of the diverter plate, two hot nozzles are provided, a cold water jacket is sleeved on the hot nozzle, a glue feed head is provided on the hot nozzle, a cold material well is provided at the bottom end of the glue feed head, and a discharge port is provided at the side end of the glue feed head.
[0006] In the above description, as a further solution, the hot nozzle is symmetrically arranged at the lower end of the diverter plate.
[0007] In the above description, as a further solution, the lower end of the diverter plate is provided with a lower heating tube for surrounding the two hot nozzles, and the upper end of the diverter plate is provided with an upper heating tube for surrounding the two hot nozzles.
[0008] In the above description, as a further solution, the top of the diverter plate is provided with an upper groove, the bottom of the diverter plate is provided with a lower groove, the upper heating tube is arranged in the upper groove, and the lower heating tube is arranged in the lower groove of the diverter plate.
[0009] In the above description, as a further solution, the upper end of the cold water jacket is set as a sealing ring, and the diameter of the sealing ring is larger than the diameter of the cold water jacket body.
[0010] In the above description, as a further solution, the vertical center line of the hot nozzle coincides with the vertical center line of the cold material well.
[0011] In the above description, as a further solution, the glue feed head is trapezoidal, the hot nozzle passes through the trapezoidal glue feed head, and the length of the parallel side of the glue feed head close to the discharge port is greater than the length of the parallel side of the glue feed head away from the discharge port.
[0012] In the above description, as a further solution, the diameter range of the discharge port is 1.6 mm-2.0 mm.
[0013] The beneficial effects produced by the utility model are as follows: the one-out-two mold structure of the mobile phone protective cover, 1. by setting two hot nozzles, the production capacity is doubled on the basis of the original one-out-one, thereby effectively improving the production capacity.
[0014] 2. By setting a hot nozzle, the runner temperature is equal to the nozzle temperature of the injection molding machine, ensuring that the raw material will not condense in the runner, improving the fluidity of the raw material, reducing the loss of injection pressure, and making it easier to fill the product, avoiding the need for high speed and high pressure during injection molding, which may cause other poor appearance phenomena. It also avoids the need to manufacture runner gates for cold runners, which can reduce the loss of raw materials by at least two grams for each product, thus reducing the cost of raw materials. The mold structure does not require a gate plate, and nylon plugs are not used on the mold. This successfully avoids the loss of plugs after multiple opening and closing of the mold, and the flying of plug ash onto the product, which results in poor appearance spots and effectively reduces the defective rate;
[0015] 3. By setting the glue inlet head, it is prevented that the hot nozzle is directly on the glue inlet of the product, and it is also prevented that the hot nozzle is directly on the product, resulting in poor appearance of the product such as air marks;
[0016] 4. By setting up a cold material well, during the injection molding process, once cold material is generated, the cold material will be guided into the cold material well after adjusting the parameters, ensuring that the cold material will not have an adverse effect on the product surface, thereby further improving the product's appearance quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure in the first direction of a mold structure of a mobile phone protective cover with one out of two according to the utility model;
[0018] Figure 2 It is a schematic diagram of the three-dimensional structure in the second direction of a mold structure of a mobile phone protective cover with one out of two according to the utility model;
[0019] Figure 3 This is a front view of a one-out-two mold structure of a mobile phone protective cover of the utility model;
[0020] Figure 4 This is a cross-sectional view of a one-out-two mold structure of a mobile phone protective cover of the utility model;
[0021] In the figure: 1-manifold, 2-hot nozzle, 3-lower heating tube, 4-upper heating tube, 5-cold water jacket, 6-rubber inlet head, 7-cold material well, 8-discharge port, 9-upper groove, 10-lower slot, 11-sealing ring. DETAILED DESCRIPTION
[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0023] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meanings of "several" and "multiple" are two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.
[0024] See also Figure 1-4, a mold structure of a mobile phone protective cover with one outlet and two outlets is specifically implemented, including a diverter plate 1, a hot nozzle 2 is provided at the lower end of the diverter plate 1, and two hot nozzles 2 are provided. The two hot nozzles 2 double the production capacity on the basis of the original one outlet and one outlet, thereby effectively improving the production capacity. A cold water jacket 5 is mounted on the hot nozzle 2, which effectively solves the sun mark and whitening phenomenon caused by uneven cold and heat on the surface of the product due to the different temperatures of the hot nozzle 2 and the mold; a glue feed head 6 is provided on the hot nozzle 2 to prevent the hot nozzle 2 from directly touching the glue feed port of the product, and also prevent the hot nozzle 2 from directly touching the product, resulting in poor appearance of the product such as air marks, and the material head will be punched out later, even if there is a defect, it will not affect the appearance of the product; a cold material well 7 is provided at the bottom end of the glue feed head 6. During the injection molding process, once cold material is generated, the cold material is guided into the cold material well 7 after adjusting the parameters, ensuring that the cold material will not have a negative impact on the surface of the product, thereby further improving the appearance quality of the product, and a discharge port 8 is provided at the side end of the glue feed head 6.
[0025] Specifically, the hot nozzle 2 is symmetrically arranged at the lower end of the diverter plate 1, so that the discharge is more uniform, thereby improving the production efficiency.
[0026] In this embodiment, the lower end of the manifold 1 is provided with a lower heating tube 3 for surrounding the two hot nozzles 2, and the upper end of the manifold 1 is provided with an upper heating tube 4 for surrounding the two hot nozzles 2. The arrangement of the lower heating tube 3 and the upper heating tube 4 can evenly heat the upper and lower surfaces of the manifold 1, ensure the fluidity of the injection liquid in the flow channel, and facilitate the injection liquid to flow into the molding cavity to complete the injection molding.
[0027] Specifically, an upper groove 9 is provided at the top of the manifold 1, a lower groove 10 is provided at the bottom of the manifold 1, the upper heating tube 4 is arranged in the upper groove 9, and the lower heating tube 3 is arranged in the lower groove 10 of the manifold 1. The upper groove 9 and the lower groove 10 are arranged to facilitate positioning of the upper heating tube 4 and the lower heating tube 3, respectively, and improve the stability of the upper heating tube 4 and the lower heating tube 3.
[0028] In this embodiment, the upper end of the cold water jacket 5 is set as a sealing ring 11, which is convenient for tightly putting the cold water jacket 5 on the hot nozzle 2, increasing the installation stability between the cold water jacket 5 and the hot nozzle 2, and the diameter of the sealing ring 11 is larger than the diameter of the cold water jacket 5 body. During installation, it is convenient to hold the sealing ring 11, thereby improving the convenience of installing the cold water jacket 5.
[0029] In this embodiment, the vertical center line of the hot nozzle 2 coincides with the vertical center line of the cold material well 7, so that the hot nozzle 2 and the cold material well 7 maintain concentricity, which facilitates guiding the cold material into the cold material well 7.
[0030] In this embodiment, the glue feeding head 6 is trapezoidal, and the hot nozzle 2 passes through the trapezoidal glue feeding head 6. The length of the parallel side of the glue feeding head 6 close to the discharge port 8 is greater than the length of the parallel side of the glue feeding head 6 away from the discharge port 8. The trapezoidal glue feeding head 6 has a tendency to become wider from the length of the parallel side away from the discharge port 8 to the length of the parallel side close to the discharge port 8, which is convenient for guiding the molten material to the discharge port 8 and improving the injection molding speed.
[0031] In this embodiment, the diameter of the discharge port 8 ranges from 1.6 mm to 2.0 mm, which is convenient for producing products with good appearance. If the injection point is too small, the injection speed and pressure need to be increased to fill the mold, and the product will produce air marks. If it is too large, the injection point will flow, and the flow of glue will run onto the product when the next mold is pressed, resulting in poor appearance.
[0032] In the embodiment of the utility model, the flow path of the molten material is: hot nozzle 2 → glue inlet head 6 → discharge port 8.
[0033] The above contents are further detailed descriptions of the present invention in combination with specific further embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as the protection scope of the present invention.
Claims
1. A mold structure for a mobile phone protective cover with two parts, including a diverter plate, characterized in that: A hot nozzle is arranged at the lower end of the diverter plate, two hot nozzles are arranged, a cold water jacket is mounted on the hot nozzle, a glue feeding head is arranged on the hot nozzle, a cold material well is arranged at the bottom end of the glue feeding head, and a discharge port is arranged at the side end of the glue feeding head.
2. According to claim 1, a two-piece mold structure for a mobile phone protective cover, characterized in that: The hot nozzles are symmetrically arranged at the lower end of the diverter plate.
3. A one-out-two mold structure for a mobile phone protective cover according to claim 1 or 2, characterized in that: The lower end of the diverter plate is provided with a lower heating pipe for surrounding the two hot nozzles, and the upper end of the diverter plate is provided with an upper heating pipe for surrounding the two hot nozzles.
4. The one-out-two mold structure of a mobile phone protective cover according to claim 3, characterized in that: The top of the diverter plate is provided with an upper groove, the bottom of the diverter plate is provided with a lower groove, the upper heating tube is arranged in the upper groove, and the lower heating tube is arranged in the lower groove of the diverter plate.
5. A one-out-two mold structure for a mobile phone protective cover according to claim 1 or 2, characterized in that: The upper end of the cold water jacket is arranged as a sealing ring, and the diameter of the sealing ring is larger than the diameter of the cold water jacket body.
6. A one-out-two mold structure for a mobile phone protective cover according to claim 1 or 2, characterized in that: The vertical center line of the hot nozzle coincides with the vertical center line of the cold material well.
7. A one-out-two mold structure for a mobile phone protective cover according to claim 1 or 2, characterized in that: The glue feeding head is trapezoidal, the hot nozzle passes through the trapezoidal glue feeding head, and the length of the parallel side of the glue feeding head close to the discharge port is greater than the length of the parallel side of the glue feeding head away from the discharge port.
8. A one-out-two mold structure for a mobile phone protective cover according to claim 1 or 2, characterized in that: The diameter of the discharge port ranges from 1.6 mm to 2.0 mm.