Injection mold for integrally forming threads of mounting nut

Abstract

The utility model discloses a mounting nut thread integral forming injection mold which comprises an upper mold plate, an upper base plate, an upper mold, four thread forming assemblies, a lower mold, a lower base plate, lower mold feet and a lower mold plate, the upper base plate is fixedly arranged at the bottom of the upper mold plate, the upper mold is fixedly arranged at the bottom of the upper base plate, and an upper mold cavity is formed in the upper mold; the lower mold is arranged under the upper mold and internally provided with a lower mold cavity, the lower mold cavity is located under the upper mold cavity, the four thread forming assemblies are distributed on the upper mold plate side by side and comprise transmission gears, transmission shafts and thread cores, and the transmission gears are in transmission connection with an external injection molding machine power output assembly. The transmission shaft is in transmission connection with the transmission gear, the tooth core is arranged at the tail end of the transmission shaft, and the top of the tooth core penetrates through the upper die cavity to the lower die cavity; during injection molding, a threaded hole is directly tapped without subsequently placing a copper nut, the operation efficiency is high, the labor intensity is small, the labor cost is low, the material use cost is low, products are not prone to being damaged, the yield is high, and the production requirement is effectively met.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical molds, and particularly relates to an integrated molding injection mold for installing nut screw threads, which is convenient and simple to operate, has high efficiency, high yield rate, and low labor intensity. Background Art

[0002] Mounting nut (such as Figure 2 As shown in the figure, both ends of the copper nut need to be threaded, which is convenient for subsequent assembly and use. At present, the thread of the installation nut is manually installed after the injection molding is completed, and the subsequent assembly and use are achieved through the thread on the copper nut. This method of first injection molding the whole and then installing the copper nut can meet certain production requirements, but it also has major defects. The step-by-step operation is inefficient, labor-intensive, labor-intensive, and labor-intensive. The cost of material use is high, the product is easy to damage, and the yield rate is low, which cannot effectively meet the production and use requirements.

[0003] The technical problem to be solved by the utility model is to provide an injection mold for integrally forming the screw threads of an installation nut, which can directly tap the threads during injection molding without the need for further installation, has high operating efficiency, low labor intensity, low labor costs, low material usage costs, is not prone to product damage, has a high yield rate, and effectively meets production and use requirements. Utility Model Content

[0004] In order to solve the problems of low efficiency, high labor intensity, high labor cost, high material cost, easy damage to products, low yield rate, and inability to effectively meet production and use requirements in the above-mentioned prior art, the utility model adopts the following technical solutions:

[0005] The utility model provides an injection mold for mounting nut screw threads, comprising an upper mold plate, an upper pad, an upper mold, four thread forming components, a lower mold, a lower pad, a lower mold foot and a lower mold plate, wherein the upper pad is fixedly arranged at the bottom of the upper mold plate, the upper mold is fixedly arranged at the bottom of the upper pad and has an upper mold cavity inside, the lower mold is arranged directly below the upper mold and has a lower mold cavity inside, the lower mold cavity is located directly below the upper mold cavity, the four thread forming components are arranged side by side on the upper mold plate and include a transmission gear, a transmission shaft and a thread core, the transmission gear is transmission-connected to an external injection molding machine power output component, the transmission shaft is transmission-connected to the transmission gear, the thread core is arranged at the end of the transmission shaft and the top passes through the upper mold cavity to the lower mold cavity, the lower pad, the lower mold foot and the lower mold plate are sequentially distributed from top to bottom at the bottom of the lower mold.

[0006] Preferably, a gate sleeve is provided in the middle of the upper template.

[0007] The beneficial effects of the utility model are: direct tapping of threaded holes during injection molding does not require subsequent placement of copper nuts, high operating efficiency, low labor intensity, low labor costs, low material usage costs, no risk of damaging products, high yield rate, and effective satisfaction of production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The utility model is a schematic structural diagram of an embodiment.

[0009] Figure 2 Schematic diagram of the structure of the installation nut. Implementation

[0010] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0011] See also Figure 1 , an integrated injection mold for mounting nut screw threads, comprising an upper mold plate 1, an upper pad 2, an upper mold 3, four thread forming components 4, a lower mold 5, a lower pad 6, a lower mold foot 7 and a lower mold plate 8, wherein the upper pad 2 is fixedly arranged at the bottom of the upper mold plate 1, the upper mold 3 is fixedly arranged at the bottom of the upper pad 2 and has an upper mold cavity 31 inside, the lower mold 5 is arranged directly below the upper mold 3 and has a lower mold cavity 51 inside, the lower mold cavity 51 is located directly below the upper mold cavity 31, the mold is one-out-two, and a product has two threads, so four thread forming components are required, each component taps one thread, the four thread forming components 4 are arranged side by side on the upper mold plate 1 and include transmission gears Wheel 41, transmission shaft 42 and thread core 43, the transmission gear 41 is transmission connected to the external injection molding machine power output component, the transmission shaft 42 is transmission connected to the transmission gear 41, the thread core 43 is arranged at the end of the transmission shaft 42 and the top passes through the upper mold cavity 31 to the lower mold cavity 51, the lower pad 6, the lower mold foot 7, and the lower mold plate 8 are distributed from top to bottom at the bottom of the lower mold 5. During injection molding, the upper and lower mold cavities are injected with rubber to complete the injection molding. During injection molding, only the front end of the thread core enters the tapping. After the product is formed as a whole, the thread core is driven by external power, gears and transmission shafts to complete the tapping. After the tapping is completed, the mold can be opened to form the screw thread in one piece, and there is no need to put the copper nut later.

[0012] A sprue bushing 11 is provided in the middle of the upper mold plate 1, and the rubber material is injected from the sprue bushing through the flow channel into the mold cavity to complete the injection molding product.

[0013] The beneficial effects of the utility model are: direct tapping of threaded holes during injection molding does not require subsequent placement of copper nuts, high operating efficiency, low labor intensity, low labor costs, low material usage costs, no risk of damaging products, high yield rate, and effective satisfaction of production requirements.

[0014] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. An injection mold for integrally forming a mounting nut thread, characterized in that: The invention comprises an upper mold plate (1), an upper pad (2), an upper mold (3), four thread forming components (4), a lower mold (5), a lower pad (6), a lower mold foot (7) and a lower mold plate (8), wherein the upper pad (2) is fixedly arranged at the bottom of the upper mold plate (1), the upper mold (3) is fixedly arranged at the bottom of the upper pad (2) and has an upper mold cavity (31) inside, the lower mold (5) is arranged directly below the upper mold (3) and has a lower mold cavity (51) inside, the lower mold cavity (51) is located directly below the upper mold cavity (31), and the four thread forming components (4) are arranged at the bottom of the upper mold plate (2). ) are arranged side by side on the upper mold plate (1) and include a transmission gear (41), a transmission shaft (42) and a tooth core (43); the transmission gear (41) is transmission-connected to an external injection molding machine power output assembly; the transmission shaft (42) is transmission-connected to the transmission gear (41); the tooth core (43) is arranged at the end of the transmission shaft (42) and the top passes through the upper mold cavity (31) to the lower mold cavity (51); the lower pad (6), the lower mold foot (7) and the lower mold plate (8) are sequentially distributed from top to bottom at the bottom of the lower mold (5).

2. The mounting nut screw thread integrally formed injection mold according to claim 1, characterized in that: A gate sleeve (11) is provided in the middle of the upper mold plate (1).

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