Flange lining die for electric tool

Abstract

The utility model discloses a flange bushing mould for an electric tool, which comprises an upper mould seat plate, an upper support plate arranged below the upper mould seat plate, a cavity plate arranged below the upper support plate, a core plate arranged below the cavity plate, an upper cavity arranged at the bottom of the cavity plate, and a lower cavity arranged at the top of the core plate. The upper mold base plate is internally provided with a sprue forming plate, the bottom of the sprue forming plate is provided with a protruding part extending downwards, the protruding part downwards penetrates through the upper supporting plate and the mold cavity plate, the sprue forming plate and the protruding part are internally provided with sprue forming cavities, the sprue forming cavities are communicated with the upper mold cavity, a push plate is arranged below the mold core plate, and the lower mold core plate is provided with a push rod. A lower mold plate is arranged below the push plate, an ejector pin is vertically arranged on the lower mold plate, a pouring runner is arranged on the cavity plate, and the pouring runner is communicated with the upper cavity. The flange bushing mold for the electric tool is good in injection molding filling effect, compact in structure, capable of manufacturing a flange bushing with good quality and high in working efficiency.

Description

Technical Field

[0001] This utility model relates to a flange bushing mold for power tools, belonging to the technical field of mold products. Background Technology

[0002] Flange bushings are used in power tools. They are made of engineering plastics and are usually molded using injection molds. The injection filling effect, structural compactness, and working efficiency of the mold are all factors that need to be considered.

[0003] Patent CN 204844600 U discloses a novel bushing mold, relating to the field of automotive rubber bushing mold technology. The mold includes a bushing, an upper baffle, a lower baffle, a plunger, a material cup, and a high-pressure spring. The bushing is evenly disposed between the upper and lower baffles, fixedly connected to the lower baffle, and detachably connected to the upper baffle. The plunger is fixedly disposed on the upper side of the upper baffle. Two material cups are respectively disposed on the lower sides of the plunger at the connection points with the upper baffle and the bushing. The high-pressure spring is evenly disposed between the plunger and the material cup. This invention ensures uniform pressure on the molded parts in each cavity, effectively preventing frictional damage to the plunger and material cup due to uneven pressure. It also facilitates quick and easy removal of the bushing by the operator, improving the mold's service life, saving auxiliary time, and increasing production efficiency without damaging the outer skeleton's appearance. However, this patent is not applicable to the molding and processing of flange bushings. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a flange bushing mold for power tools. This flange bushing mold for power tools has good injection filling effect, compact structure, and can produce high-quality flange bushings with high work efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flange bushing mold for power tools, comprising an upper mold base plate, an upper support plate below the upper mold base plate, a cavity plate below the upper support plate, a core plate below the cavity plate, an upper cavity at the bottom of the cavity plate, and a lower cavity at the top of the core plate. The upper cavity is located directly above the lower cavity. A nozzle forming plate is provided inside the upper mold base plate, and a downwardly extending protrusion is provided at the bottom of the nozzle forming plate, the protrusion passing downward through the upper support plate and the cavity plate. A nozzle forming cavity is provided inside the nozzle forming plate and the protrusion, and the nozzle forming cavity communicates with the upper cavity. A push plate is provided below the core plate, and a lower template is provided below the push plate. An ejector pin is vertically provided on the lower template, passing through the push plate and the core plate and communicating with the lower cavity. A gating channel is provided on the cavity plate, and the gating channel communicates with the upper cavity.

[0006] Preferably, the casting channel is arranged in a semi-circular shape within the cavity plate.

[0007] Preferably, a lower support plate is provided below the lower template, and a lower mold base plate is provided below the lower support plate. A return needle is vertically provided on the lower mold base plate. The return needle passes through the lower support plate and the lower template, and a spring is sleeved on the return needle.

[0008] Preferably, a support column is vertically provided between the lower template and the lower template base plate.

[0009] Preferably, guide posts are vertically arranged inside the lower template, push plate, and cavity plate.

[0010] Preferably, a positioning ring is provided on the top of the upper mold base plate.

[0011] Preferably, cooling water channels are provided inside the cavity plate and the core plate.

[0012] Preferably, inserts are provided inside the cavity plate, core plate, and push plate, and water-proof plates are provided inside the inserts.

[0013] The flange bushing mold for power tools provided by this utility model has the following advantages: the flange bushing mold for power tools provided by this utility model has a good injection filling effect, a compact structure, can produce high-quality flange bushings, and has high work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the flange bushing mold for power tools according to this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Please see Figure 1This utility model provides a technical solution: a flange bushing mold for power tools, including an upper mold base plate 1, an upper support plate 2 disposed below the upper mold base plate, a cavity plate 3 disposed below the upper support plate 2, a core plate 4 disposed below the cavity plate 3, an upper cavity 5 disposed at the bottom of the cavity plate 3, a lower cavity 6 disposed at the top of the core plate 4, the upper cavity 5 being located directly above the lower cavity 6, and a nozzle forming plate 7 disposed inside the upper mold base plate 1, the bottom of the nozzle forming plate 7 having a downwardly extending protrusion. The protrusion 8 passes downward through the upper support plate 2 and the cavity plate 3. The nozzle forming plate 7 and the protrusion 8 are provided with a nozzle forming cavity 9, which is connected to the upper cavity 5. A push plate 10 is provided below the core plate 4. A lower template 11 is provided below the push plate 10. An ejector pin 12 is vertically provided on the lower template 11. The ejector pin 12 passes through the push plate 10 and the core plate 4 and is connected to the lower cavity 6. A gating channel 13 is provided on the cavity plate 3, which is connected to the upper cavity 5.

[0017] Preferably, the injection channel 13 is arranged in a semi-circular shape within the cavity plate 3. The semi-circular injection channel 13 allows the liquefied engineering plastic to flow smoothly, resulting in good injection filling effect and improving injection quality.

[0018] Preferably, a lower support plate 14 is provided below the lower template 11, and a lower mold base plate 15 is provided below the lower support plate 14. A return needle 16 is vertically provided on the lower mold base plate 15. The return needle 16 passes through the lower support plate 14 and the lower template 11. A spring 17 is sleeved on the return needle 16. The spring 17 has a buffering effect on the mold when the mold is closed, preventing a large impact force when the cavity plate 3 and the core plate 4 are close together, thus protecting the mold.

[0019] Preferably, a support column 18 is vertically provided between the lower template 11 and the lower mold base plate 15.

[0020] Preferably, guide posts 19 are vertically arranged inside the lower template 11, push plate 10 and cavity plate 3, and the guide posts 19 guide the up and down movement of the cavity plate 3.

[0021] Preferably, a positioning ring 20 is provided on the top of the upper mold base plate 1. The positioning ring 20 positions the upper mold base plate 1 for installation, facilitating quick installation of the upper mold base plate 1.

[0022] Preferably, the cavity plate 3 and the core plate 4 are provided with cooling water channels 21, which cool the mold and prevent the mold from overheating during continuous operation.

[0023] Preferably, the cavity plate 3, the core plate 4 and the push plate 10 are provided with inserts 22, and the inserts 22 are provided with water-proof plates 23.

[0024] When this utility model of a flange bushing mold for power tools is in operation, the mold is installed on an injection molding machine. The cavity plate 3 and the core plate 4 are close together for mold closing. The injection molding machine injects liquefied engineering plastic into the upper cavity 5 through the gating channel 13, thereby filling the upper cavity 5, the lower cavity 6, and the nozzle forming cavity 9. Pressure is maintained for a certain period of time, and the engineering plastic is formed into a flange bushing product within the upper cavity 5, the lower cavity 6, and the nozzle forming cavity 9. The cavity plate 3 and the core plate 4 are then separated to remove the flange bushing product. The entire structure is compact, has high working efficiency, and can produce high-quality flange bushing products.

[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A flange bushing mold for power tools, comprising an upper die seat plate, an upper supporting plate is arranged below the upper die seat plate, characterized in that: The lower part of the upper supporting plate is provided with a cavity plate, the lower part of the cavity plate is provided with a core plate, the bottom of the cavity plate is provided with an upper cavity, the top of the core plate is provided with a lower cavity, the upper cavity is directly above the lower cavity, the upper die base plate is provided with a nipple forming plate, the bottom of the nipple forming plate is provided with a downward extending protruding part, the protruding part passes through the upper supporting plate and the cavity plate, the nipple forming plate and the protruding part are provided with a nipple forming cavity, the nipple forming cavity is communicated with the upper cavity, the lower part of the core plate is provided with a push plate, the lower part of the push plate is provided with a lower die plate, the lower die plate is vertically provided with a ejector pin, the ejector pin passes through the push plate and the core plate and is communicated with the lower cavity, the cavity plate is provided with a pouring runner, the pouring runner is communicated with the upper cavity.

2. The flange bushing mold for power tools according to claim 1, characterized by: The pouring runner is arranged in the cavity plate in a semi-ring shape.

3. The flange bushing mold for power tools according to claim 2, characterized by: The lower part of the lower die plate is provided with a lower supporting plate, the lower part of the lower supporting plate is provided with a lower die base plate, the lower die base plate is vertically provided with a return pin, the return pin passes through the lower supporting plate and the lower die plate, the return pin is provided with a spring.

4. The flange bushing mold for power tools according to claim 3, characterized by: The lower die plate and the lower die base plate are vertically provided with a supporting column.

5. The flange bushing mold for power tools according to claim 4, characterized by: The lower die plate, the push plate and the cavity plate are vertically provided with a guide column.

6. The flange bushing mold for power tools according to claim 5, characterized by: The top of the upper die base plate is provided with a positioning ring.

7. The flange bushing mold for power tools according to claim 6, characterized by: The cavity plate and the core plate are provided with a cooling water flow channel.

8. The flange bushing mold for power tools according to claim 7, characterized by: The cavity plate, the core plate and the push plate are provided with an insert, the insert is provided with a water baffle.

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