Injection molding equipment for printer plastic shell production
By using a stainless steel scraper to remove stubborn residue from the injection nozzle in the injection molding equipment used for producing plastic casings for printers, the problem of nozzle blockage was solved, ensuring smooth equipment operation and improving production efficiency.
Patent Information
- Application Number
- CN202520022215.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-06
AI Technical Summary
After prolonged use, molten material residue in the injection port of injection molding equipment used for producing plastic casings for printers can cause blockages, affecting production and processing.
Stubborn residues inside the injection port are removed using a stainless steel scraper. The scraper is rotated by a motor-driven shaft to remove the residues and allow them to enter the lower mold cavity. The upper and lower molds are then separated for further cleaning.
It effectively keeps the injection port unobstructed, ensures continuous production, and improves production efficiency.
Smart Images

Figure CN223820977U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a printer plastic shell production equipment more, specifically, it relates to a kind of injection molding equipment for printer plastic shell production. BACKGROUND
[0002] Injection molding equipment, also known as injection molding machine or injection machine, is one of the main types of plastic molding equipment. It uses plastic molding mold to make various shapes of plastic products from thermoplastic or thermosetting plastic. The injection molding machine heats the plastic and applies high pressure to it, so that it can shoot and fill the mold cavity. After cooling and solidification, the desired product is obtained.
[0003] When the injection molding equipment for printer plastic shell production is processing, the molten material enters the mold through the injection port. After long-term processing and production, the molten liquid may remain in the injection port. The plastic molecular chain gradually loses its fluidity and solidifies, forming a hard plastic shell, which causes the injection port to be blocked and affects the production and processing of the product.
[0004] Therefore, a new solution is needed to solve this problem. INVENTION CONTENTS
[0005] To overcome the shortcomings of the prior art, the purpose of the present utility model is to provide an injection molding equipment for printer plastic shell production. The stainless steel scraper has high hardness and wear resistance, and can easily remove stubborn residues attached to the inner wall of the injection port. At this time, the residues enter the inner cavity of the lower mold through the channel of the injection port. The upper mold and the lower mold are separated, so that impurities can be easily cleaned, ensuring the smoothness of the injection port and the production and processing of the product.
[0006] The above technical purpose of the utility model is realized by the following technical scheme: an injection molding equipment for printer plastic shell production, comprising a lower mold and an upper mold, the upper end of the upper mold is fixedly installed with an injection port, the left end of the lower mold is fixedly installed with a support, the upper end of the support is fixedly installed with a gas cylinder, the output end of the gas cylinder is fixedly installed with a meander plate, the meander plate is fixedly installed with a motor inside, the output end of the motor is fixedly installed with a rotating shaft, the lower end of the rotating shaft is fixedly installed with a stainless steel scraper, and the stainless steel scraper is located above the injection port.
[0007] The utility model is further provided as follows: the length of the stainless steel scraper is the same as the inner diameter of the injection port.
[0008] The utility model is further provided as follows: the lower end of the lower mold is fixedly installed with four supporting legs.
[0009] The utility model is further provided as follows: the upper end of the upper mold is fixedly installed with four guide columns on the lower side, and the guide columns and the lower mold are movably connected.
[0010] The utility model further sets up: the shaft center line of pivot and injection port coincides.
[0011] In summary, the utility model has the following beneficial effects:
[0012] 1. The motor drives the shaft to rotate, thereby driving the stainless steel scraper to rotate. Stainless steel has excellent wear resistance, which enables it to maintain a sharp edge and shape for a long time, thereby maintaining high efficiency and stability when scraping residues. The wear resistance of stainless steel is mainly due to its high hardness and good toughness, which enables it to be less deformed or damaged when subjected to heavy pressure and friction. When molten liquid remains in the injection port, it will solidify and form a hard plastic shell. The stainless steel scraper has high hardness and wear resistance, and can easily scrape stubborn residues attached to the inner wall of the injection port. At this time, the residues will enter the inner cavity of the lower mold through the passage of the injection port, and the upper mold and the lower mold will be separated, thereby facilitating the removal of impurities and ensuring the smoothness of the injection port and the production of the product. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Fig. 2 It is a schematic diagram of the structure of the stainless steel scraper of the utility model.
[0015] In the figure: 1, lower mold; 2, upper mold; 3, injection port; 4, bracket; 5, air cylinder; 6, meander plate; 7, motor; 8, shaft; 9, stainless steel scraper; 10, supporting leg; 11, guide column. DETAILED DESCRIPTION
[0016] In order to enable those skilled in the art to better understand the technical scheme of the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0017] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.
[0018] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "set", "sleeve setting / interfacing", "connection" and so on, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0019] The utility model is described in detail below in conjunction with the drawings.
[0020] A kind of injection molding equipment for printer plastic shell production, as shown in Fig. Figs. 1-2 It includes lower die 1 and upper die 2, the upper end of upper die 2 is fixedly installed with injection port 3, the left end of lower die 1 is fixedly installed with support 4, the upper end of support 4 is fixedly installed with air cylinder 5, the output end of air cylinder 5 is fixedly installed with backplate 6, backplate 6 is fixedly installed with motor 7 in, the output end of motor 7 is fixedly installed with shaft 8, shaft 8 and the axis of injection port 3 coincide, the lower end of shaft 8 is fixedly installed with stainless steel scraper 9, the length of stainless steel scraper 9 and the inner diameter of injection port 3 are same, stainless steel scraper 9 is located above injection port 3, by starting air cylinder 5 to push backplate 6 to move downward, to push stainless steel scraper 9 into injection port 3, since the length of stainless steel scraper 9 and the inner diameter of main material port 3 are same, so that stainless steel scraper 9 enters into injection port 3 when and the inner wall of injection port 3 are pasted, by motor 7 drives shaft 8 to rotate, to drive stainless steel scraper 9 to rotate, stainless steel has outstanding wear resistance, this makes it can maintain sharp edge and shape for a long time, to maintain high efficiency and stability when scraping residues.Stainless steel wear resistance is mainly due to its high hardness and good toughness, which makes it not easy to deform or damage when bearing heavy pressure and friction, molten liquid is solidified when remaining in injection port 3, form hard plastic shell, stainless steel scraper 9 has higher hardness and wear resistance, can easily scrape stubborn residues attached to the inner wall of injection port, at this time residues will enter into the inner cavity of lower die 1 below through the channel of injection port 3, by separating upper die 2 from lower die 1, to facilitate cleaning impurities, guarantee the unobstructed of injection port 3, guarantee the production operation of product.
[0021] As shown in Fig. Fig. 1 The lower end of lower die 1 is fixedly installed with four support legs 10, by setting up support leg 10 to support lower die 1.
[0022] As shown in Fig. Fig. 1As shown in the drawings, four guide columns 11 are fixedly installed on the lower side of the upper end of the upper die 2, and the guide columns 11 are movably connected with the lower die 1. The guide columns 11 can accurately guide the upper die 2, so that the upper die 2 and the lower die 1 can be accurately combined without position deviation.
[0023] Working principle: The production working principle of the product is not described in detail in the prior art. The cylinder 5 is started to push the backplate 6 downward, thereby pushing the stainless steel scraper 9 into the material injection port 3. Since the length of the stainless steel scraper 9 is recessed and the inner diameter of the main material port 3 is the same size, the stainless steel scraper 9 is fitted with the inner wall of the material injection port 3 when it enters the material injection port 3. The motor 7 drives the rotating shaft 8 to rotate, thereby driving the stainless steel scraper 9 to rotate. Stainless steel has excellent wear resistance, which enables it to maintain a sharp edge and shape for a long time, thereby maintaining high efficiency and stability when removing residues. The wear resistance of stainless steel is mainly due to its high hardness and good toughness, which makes it not easy to deform or damage when subjected to heavy pressure and friction. When the molten liquid is left in the material injection port 3, it will solidify to form a hard plastic shell. The stainless steel scraper 9 has high hardness and wear resistance, and can easily scrape stubborn residues attached to the inner wall of the material injection port. At this time, the residues will enter the inner cavity of the lower die 1 below through the channel of the material injection port 3. The upper die 2 is separated from the lower die 1, thereby facilitating the removal of impurities and ensuring the smoothness of the material injection port 3, thereby ensuring the production operation of the product.
[0024] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the scope of the present application is within the protection scope of the present application. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application are also considered within the protection scope of the present application.
Claims
1. An injection molding device for producing plastic casings for printers, comprising a lower mold (1) and an upper mold (2), wherein an injection port (3) is fixedly installed at the upper end of the upper mold (2), characterized in that: A bracket (4) is fixedly installed on the left end of the lower mold (1). A cylinder (5) is fixedly installed on the upper end of the bracket (4). A spiral plate (6) is fixedly installed on the output end of the cylinder (5). A motor (7) is fixedly installed inside the spiral plate (6). A rotating shaft (8) is fixedly installed on the output end of the motor (7). A stainless steel scraper (9) is fixedly installed on the lower end of the rotating shaft (8). The stainless steel scraper (9) is located above the injection port (3).
2. The injection molding equipment for producing plastic casings for printers according to claim 1, characterized in that: The length of the stainless steel scraper (9) is the same as the inner diameter of the injection port (3).
3. The injection molding equipment for producing plastic casings for printers according to claim 1, characterized in that: The lower end of the lower mold (1) is fixedly equipped with four support legs (10).
4. The injection molding equipment for producing plastic casings for printers according to claim 1, characterized in that: Four guide pillars (11) are fixedly installed on the lower side of the upper end of the upper mold (2), and the guide pillars (11) and the lower mold (1) are movably interlocked.
5. The injection molding equipment for producing plastic casings for printers according to claim 1, characterized in that: The axis of the rotating shaft (8) and the injection port (3) coincide.