Printer shell injection mold with high forming efficiency

Abstract

The utility model discloses a printer shell injection mold with high forming efficiency. The printer shell injection mold comprises a top plate, an upper mold plate, a lower mold plate, a bottom plate, a pouring sleeve, a shunt pipe, a sprue insert, an upper insert seat and a lower insert seat, mold core structures are arranged on the two sides of the bottom of the upper inlaying seat, mold cavity structures are arranged on the two sides of the top of the lower inlaying seat, and a forming cavity used for injection molding of the printer shell is formed between the mold cavity structures and the mold core structures; the top of the flow dividing pipe communicates with the pouring sleeve, and a branch pipeline is arranged at the bottom of the flow dividing pipe and communicates with the forming cavity through a sprue insert. Due to the arrangement of the shunt pipe, injection molding materials can flow to each molding cavity of the mold more uniformly, and the flow and the speed of the injection molding materials flowing into the molding cavities are controlled through the sprue insert, so that the product defects, such as warping, bubbles and cold marks, caused by non-uniform flow velocity are avoided; due to the arrangement of the replaceable sprue insert, the mold is more convenient and flexible to maintain when needing to be maintained, the maintenance time and cost are saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of printer housing injection molds, in particular to a printer housing injection mold with high molding efficiency. Background Art

[0002] With the widespread use of printers, the market demand for printer housings continues to increase, especially in office equipment and household equipment. The internal structure of the printer has multiple shell structures to facilitate the installation of related printer accessories.

[0003] In the prior art, traditional printer housing injection molds can usually only produce one housing component at a time. This single-cavity mold has low production efficiency and cannot meet the needs of mass production. In addition, the pouring channel structure in traditional injection molds is often relatively simple, which leads to uneven flow rate of molten injection material when flowing through, especially in complex geometric structures or multi-cavity molds. As a result, the injection material cannot be quickly and evenly distributed when filling the mold cavity, which prolongs the product molding cycle. Moreover, during the pouring production process, the gate area is prone to wear due to frequent scouring and shearing of high-temperature molten injection material, resulting in the need to replace the entire mold or undergo large-scale repairs, which not only increases maintenance costs but also shortens the service life of the mold.

[0004] Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a printer housing injection mold with high molding efficiency, which improves production efficiency, is easy to maintain and can extend the service life of the mold.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: a printer housing injection mold with high molding efficiency, including a top plate, an upper template, a lower template, a bottom plate, a pouring sleeve, a diverter pipe, a gate insert, an upper insert seat and a lower insert seat;

[0007] The upper template is arranged at the bottom of the top plate, and the bottom of the upper template has a first accommodating cavity. The two upper inlays are respectively arranged in the first accommodating cavity, and core structures are provided on both sides of the bottom of the upper inlay;

[0008] The lower template is arranged below the upper template, the bottom plate is arranged at the bottom of the lower template, the top of the lower template has a second accommodating cavity, the two lower mounting seats are respectively arranged in the second accommodating cavity, and cavity structures are provided on both sides of the top of the lower mounting seats, and a molding chamber for injection molding the printer housing is formed between the cavity structure and the core structure;

[0009] The casting sleeve is arranged in the middle of the top plate, and the casting sleeve is used to inject molten injection material. The diverter pipe is buried in the upper template, and the top of the diverter pipe is connected with the casting sleeve. The bottom of the diverter pipe has a plurality of branch pipes. The gate insert is arranged on the lower insert between the cavity structures on both sides. The branch pipe is connected with the molding cavity through the gate insert. The gate insert is used to circulate the injection material flowing out of the branch pipe into the molding cavity.

[0010] By adopting the above technical solution, in the injection mold of the printer housing with high molding efficiency, the gate insert has an inlet and an outlet connected to the inlet, the inlet is connected to the branch pipe, and the outlet is connected to the molding chamber.

[0011] By adopting the above-mentioned technical solutions, in the injection mold for the printer housing with high molding efficiency, the diameter of the inlet is larger than the diameter of the outlet.

[0012] By adopting the above-mentioned technical solutions, in the injection mold for the printer housing with high molding efficiency, an injection channel is formed between the inlet and the outlet, and the injection channel has an arc-shaped structure.

[0013] By adopting the above-mentioned technical solutions, in the injection mold for the printer housing with high molding efficiency, the number of gate inserts on each lower insert seat is four.

[0014] By adopting the above-mentioned technical solutions, the printer housing injection mold with high molding efficiency further includes a cooling pipe group;

[0015] The cooling pipe group is partially buried in the upper template. The cooling pipe group has a plurality of water injection ports, which are exposed on the side wall of the upper template and are used to introduce cooling liquid.

[0016] By adopting the above-mentioned technical solutions, in the injection mold of the printer housing with high molding efficiency, positioning protrusions are provided at the four corners of the bottom of the upper inlay;

[0017] The lower setting seat is provided with a positioning groove adapted to abut against the positioning protrusion.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The utility model discloses that during the injection molding process, the molten plastic material can be injected into the casting sleeve through the nozzle of the injection molding machine, the top of the diverter pipe is connected with the casting sleeve, and the bottom of the diverter pipe is provided with multiple branch pipes, which can divert and transport the plastic material, and enter the molding cavity through the gate insert and gradually fill the molding cavity to form the shape structure of the printer shell; the setting of the diverter pipe can make the injection molding material flow more evenly to the various molding cavities of the mold, and control the flow rate and speed of the injection molding material into the molding cavity through the gate insert, so as to ensure that the injection molding material is evenly distributed in the various molding cavities, avoiding product defects caused by uneven flow rate, such as warping, bubbles and cold marks; the replaceable gate insert makes it more convenient and flexible to maintain the mold when it is needed, saves maintenance time and cost, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0022] Figure 1 This is a schematic diagram of the overall explosion structure of the utility model;

[0023] Figure 2 It is a schematic structural diagram of the upper and lower mounting bases of the present invention in a separated state;

[0024] Figure 3 This is a schematic diagram of the cooling tube assembly structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the lower inlay structure of the present utility model;

[0026] Figure 5 This is a schematic diagram of the gate insert structure of the present utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0029] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0030] like Figures 1 to 5 As shown, the embodiment of the present invention provides a printer housing injection mold with high molding efficiency, including a top plate 1, an upper template 2, a lower template 3, a bottom plate 4, a casting sleeve 5, a shunt pipe 6, a gate insert 7, an upper insert 81 and a lower insert 82; the upper template 2 is arranged at the bottom of the top plate 1, the bottom of the upper template 2 has a first accommodating cavity, the two upper inserts 81 are respectively arranged in the first accommodating cavity, and core structures 810 are provided on both sides of the bottom of the upper insert 81, the lower template 3 is arranged below the upper template 2, the bottom plate 4 is arranged at the bottom of the lower template 3, and the top of the lower template 3 is provided with a core structure 810. It has a second accommodating cavity, and the two lower inserts 82 are respectively arranged in the second accommodating cavity. Cavity structures 820 are provided on both sides of the top of the lower insert 82, and a molding chamber for injection molding the printer shell is formed between the cavity structure 820 and the core structure 810; when the mold is in the mold closing state, the core structure 810 and the cavity structure 820 can form a closed molding chamber and accommodate molten injection molding material to injection mold a printer shell product of a specific shape; the upper insert 81 and the lower insert 82 are detachable structures, which are convenient for maintenance and replacement, thereby improving the service life and maintenance efficiency of the mold.

[0031] The pouring sleeve 5 is located in the middle of the top plate 1 and is used to inject molten injection molding material. The diverter pipe 6 is embedded in the upper mold plate 2. The top of the diverter pipe 6 is connected to the pouring sleeve 5. The bottom of the diverter pipe 6 has a plurality of branch pipes 60. The gate insert 7 is located on the lower insert 82 between the two sides of the cavity structure 820. The branch pipes 60 are connected to the molding cavity through the gate insert 7. The gate insert 7 is used to circulate the injection molding material flowing out of the branch pipes 60 into the molding cavity. During the injection molding process, the molten plastic material can be injected into the pouring sleeve 5 through the nozzle of the injection molding machine. The top of the diverter pipe 6 is connected to the pouring sleeve 5, and the bottom has a plurality of branch pipes 60. The branch pipes 60 can divert and transport the plastic material, and then enter the molding cavity through the gate insert 7 and gradually fill the molding cavity to form the shape structure of the printer housing. The provision of a manifold 6 ensures a more even flow of injection material to each molding chamber of the mold. The gate insert 7 controls the flow rate and velocity of the injection material into the molding chamber, ensuring uniform distribution of the injection material within each chamber. This prevents product defects such as warping, bubbles, and cold marks caused by uneven flow rates. The replaceable gate insert 7 makes mold maintenance more convenient and flexible, saving maintenance time and costs and improving production efficiency.

[0032] like Figure 5 As shown, further, the gate insert 7 has an inlet 71 and an outlet 72 connected to the inlet 71, the inlet 71 is connected to the branch pipe 60, and the outlet 72 is connected to the molding chamber, and the diameter of the inlet 71 is larger than the diameter of the outlet 72. Such a setting can effectively slow down the flow rate of the injection molding material, avoid the injection molding material entering the molding chamber too quickly and causing defects such as bubbles and flow marks, thereby improving the product quality; and the small-diameter outlet 72 setting can reduce the turbulence and turbulence of the injection molding material in the molding chamber, thereby improving the surface finish of the product.

[0033] like Figure 5 As shown, an injection channel 700 is formed between the inlet 71 and the outlet 72. The injection channel 700 has an arc-shaped structure. The arc-shaped injection channel 700 can guide the molten injection material along a smoother path into the outlet 72, thereby reducing the flow resistance of the injection material during the flow process, thereby improving the surface accuracy and quality of the molded injection product.

[0034] like Figure 4 As shown, further, the number of gate inserts 7 on each of the lower inserts 82 is four groups. Such an arrangement can speed up the filling speed of the injection molding material, so that the injection molding material can enter multiple molding chambers at the same time, thereby improving the molding efficiency of the injection molding process and shortening the injection molding cycle.

[0035] like Figure 2 and Figure 3 As shown, further, a cooling pipe group 9 is included, and the cooling pipe group 9 is partially buried in the upper template 2. The cooling pipe group 9 has a plurality of water injection ports 90, and the water injection ports 90 are exposed on the side wall of the upper template 2. The water injection ports 90 are used to introduce coolant. Such a setting can accelerate the molding cooling process, make the molten injection material solidify faster, shorten the molding cycle, and improve production efficiency.

[0036] like Figure 2 As shown, further, positioning protrusions 811 are provided at the four corners of the bottom of the upper mount 81, and positioning grooves 821 are provided on the lower mount 82 to fit and abut against the positioning protrusions 811. Such an arrangement allows the upper mount 81 and the lower mount 82 to be accurately aligned when the mold is closed, thereby improving the molding quality of the injection molded product.

[0037] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A printer housing injection mold with high molding efficiency, characterized in that: Including top plate, upper template, lower template, bottom plate, pouring sleeve, diverter pipe, gate insert, upper insert and lower insert; The upper template is arranged at the bottom of the top plate, and the bottom of the upper template has a first accommodating cavity. The two upper inlays are respectively arranged in the first accommodating cavity, and core structures are provided on both sides of the bottom of the upper inlay; The lower template is arranged below the upper template, the bottom plate is arranged at the bottom of the lower template, the top of the lower template has a second accommodating cavity, the two lower mounting seats are respectively arranged in the second accommodating cavity, and cavity structures are provided on both sides of the top of the lower mounting seats, and a molding chamber for injection molding the printer housing is formed between the cavity structure and the core structure; The casting sleeve is arranged in the middle of the top plate, and the casting sleeve is used to inject molten injection material. The diverter pipe is buried in the upper template, and the top of the diverter pipe is connected with the casting sleeve. The bottom of the diverter pipe has a plurality of branch pipes. The gate insert is arranged on the lower insert between the cavity structures on both sides. The branch pipe is connected with the molding cavity through the gate insert. The gate insert is used to circulate the injection material flowing out of the branch pipe into the molding cavity.

2. The printer housing injection mold with high molding efficiency according to claim 1, characterized in that: The gate insert has an inlet and an outlet communicated with the inlet, the inlet is communicated with the branch pipe, and the outlet is communicated with the molding chamber.

3. The printer housing injection mold with high molding efficiency according to claim 2, characterized in that: The diameter of the feed port is larger than the diameter of the discharge port.

4. The printer housing injection mold with high molding efficiency according to claim 3, characterized in that: An injection channel is formed between the material inlet and the material outlet, and the injection channel has an arc-shaped structure.

5. The printer housing injection mold with high molding efficiency according to claim 1, characterized in that: The number of gate inserts on each lower insert seat is four.

6. The printer housing injection mold with high molding efficiency according to claim 1, characterized in that: Also includes a cooling pipe group; The cooling pipe group is partially buried in the upper template. The cooling pipe group has a plurality of water injection ports, which are exposed on the side wall of the upper template and are used to introduce cooling liquid.

7. The printer housing injection mold with high molding efficiency according to claim 1, characterized in that: Positioning protrusions are provided at the four corners of the bottom of the upper setting seat; The lower setting seat is provided with a positioning groove adapted to abut against the positioning protrusion.

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