Bolt forming die

Abstract

The utility model discloses a bolt forming mould, which comprises an upper mould and a lower mould, a bolt forming cavity is arranged between the lower mould and the upper mould, the bolt forming cavity consists of a rotating part forming groove and a stud part forming groove, a threaded hole which is through up and down is arranged on the lower mould, and a demoulding column is in threaded connection in the threaded hole. The stud part forming groove is formed in the demolding column and is coaxially arranged, the thread pitch of the threaded hole is equal to the thread pitch in the stud part forming groove, the bottom of the demolding column is provided with a demolding shaft extending out of an orifice in the lower end of the threaded hole, the demolding shaft and the demolding column are coaxially arranged, and the demolding shaft is provided with a transverse driving lever which extends in the radial direction and is arranged outside the threaded hole; the rotary table is arranged below the demolding shaft and is coaxial with the demolding shaft, a longitudinal driving lever which rotates and interferes with the transverse driving lever is arranged on the rotary table, and a power assembly for controlling the rotation is in transmission connection with the rotary table. The forming mold has the advantages of being high in specificity, convenient to form and demold, complete in overall function and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, and more specifically, it relates to a bolt forming mold. Background Technology

[0002] Plastic bolts are typically manufactured using injection molding. However, unlike traditional plastic parts, the bolt's stud portion has threads, requiring the mold cylinder for forming the stud portion to have threads on its inner wall. Furthermore, during demolding, the bolt must rotate while simultaneously moving axially; otherwise, automatic demolding cannot be achieved. Therefore, this invention proposes a bolt forming mold. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a bolt forming mold, which has the characteristics of strong specialization and convenient forming and demolding.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The bolt forming mold of this utility model includes an upper mold and a lower mold. A bolt forming cavity is provided between the lower mold and the upper mold. The bolt forming cavity is composed of a rotating part forming groove opened on the upper mold and a stud part forming groove opened on the lower mold. A threaded hole that runs vertically through the lower mold is provided. A demolding post is threadedly connected in the threaded hole. The stud part forming groove is opened on the demolding post and is arranged coaxially. The pitch of the threaded hole is equal to the pitch in the stud part forming groove. A demolding shaft is provided at the bottom of the demolding post that extends out of the lower end of the threaded hole. The demolding shaft is arranged coaxially with the demolding post. A transverse lever that extends radially and is located outside the threaded hole is provided on the demolding shaft.

[0005] It also includes a turntable located below the demolding shaft and coaxially arranged, with a longitudinal lever on the turntable that interferes with the transverse lever when rotated, and a power assembly for controlling the rotation is connected to the turntable.

[0006] The present invention is further configured such that the longitudinal lever extends along the axial direction of the turntable.

[0007] The present invention is further configured such that the powertrain includes a motor and a reducer.

[0008] In summary, the present invention has the following beneficial effects: The bolt forming mold involved in the present invention uses a longitudinal lever that rotates actively to move a transverse lever. The transverse lever rotates around the same axis, thereby driving the connected demolding column to rotate and move downward, so as to realize the injection molding of the stud part of the bolt. It is highly specialized, easy to form and demold, has complete overall functions, and is highly practical. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0010] Figure 2 This is a schematic diagram illustrating the structure of the upper mold in this utility model;

[0011] Figure 3 This is a schematic diagram illustrating the structure of the lower mold in this utility model. Detailed Implementation

[0012] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0013] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0014] Example 1

[0015] See Figures 1 to 3 As shown, the bolt forming mold involved in this embodiment includes an upper mold 1 and a lower mold 2. A bolt forming cavity is provided between the lower mold 2 and the upper mold 1. The bolt forming cavity is composed of a rotating part forming groove 3 opened on the upper mold and a stud part forming groove 4 opened on the lower mold. A threaded hole 5 that runs vertically through the lower mold 2 is provided. A demolding post 6 is threadedly connected to the threaded hole 5. The stud part forming groove 4 is opened on the demolding post 6 and is arranged coaxially. The pitch of the threaded hole 5 is equal to the pitch of the stud part forming groove 4. A demolding shaft 7 that extends out of the lower end of the threaded hole is provided at the bottom of the demolding post 6. The demolding shaft 7 is arranged coaxially with the demolding post 6. A transverse lever 8 that extends radially and is located outside the threaded hole is provided on the demolding shaft 7.

[0016] It also includes a turntable 9 located below the demolding shaft 7 and coaxially arranged. The turntable 9 is provided with a longitudinal lever 10 that interferes with the transverse lever 8 when it rotates. The longitudinal lever 10 extends along the axial direction of the turntable 9. The turntable 9 is connected to a power assembly 11 for controlling rotation. The power assembly 11 includes a motor and a reducer.

[0017] In this embodiment, firstly, the upper and lower molds are closed, and a plastic bolt is formed in the bolt forming cavity. By starting the power assembly 11, the turntable 9 and its longitudinal lever 10 are driven to rotate. Because the longitudinal lever 10 interferes with the transverse lever 8 when it rotates, it will drive the transverse lever 8 to rotate around the axis of the demolding shaft 7. While the demolding shaft 7 drives the demolding column 6 to rotate, it can also move downward. The transverse lever 8, which moves downward at the same time, continues to transmit power with the longitudinal lever 10, so as to achieve the effect of automatic demolding of the bolt stud part.

[0018] The bolt forming mold involved in this utility model uses a longitudinal lever that rotates actively to move a transverse lever. The transverse lever rotates around the same axis, which drives the connected demolding column to rotate and move downward, thereby realizing the injection molding of the stud part of the bolt. It is highly specialized, easy to form and demold, has complete overall functions, and is highly practical.

[0019] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0020] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A bolt forming die comprising an upper die and a lower die, a bolt forming cavity being provided between the lower die and the upper die, the bolt forming cavity being composed of a screwing portion forming groove provided in the upper die and a stud portion forming groove provided in the lower die, characterized in that: The lower mold is provided with a through-thread hole in the up-down direction, a demolding column is threadedly connected in the thread hole, a screw column part forming groove is coaxially provided on the demolding column, the pitch of the thread hole is equal to the pitch of the screw column part forming groove, the bottom of the demolding column is provided with a demolding shaft extending out of the lower end of the thread hole, the demolding shaft is coaxially arranged with the demolding column, and a transverse lever is radially arranged on the demolding shaft and outside the thread hole. A rotating disc is coaxially arranged below the demolding shaft, the rotating disc is provided with a longitudinal lever rotating to interfere with the transverse lever, and a power assembly is drivingly connected to the rotating disc.

2. The bolt forming die of claim 1, wherein: The longitudinal lever extends along the axial direction of the rotating disc.

3. The bolt forming die according to claim 1 or 2, characterized by: The power assembly comprises a motor and a speed reducer.

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