Improved plastic mold sprue

Abstract

The utility model relates to the technical field of plastic molds, and discloses an improved plastic mold sprue which comprises a supporting ring, a stainless steel sprue body and four abutting blocks, the stainless steel sprue body fixedly penetrates through the supporting ring, four supporting rods are welded to the outer surface of the supporting ring, and threaded rods penetrate through one ends of the four supporting rods in a threaded mode; and rotating blocks are welded to one ends of the four threaded rods correspondingly, and the other ends of the four threaded rods are movably connected with the four abutting blocks through the four connecting pieces correspondingly. According to the scheme, four rotating blocks are rotated to drive four threaded rods to rotate, and the four threaded rods drive four abutting blocks to move through four connecting pieces correspondingly, so that the four abutting blocks tightly abut against the four sides of an upper mold, and four supporting rods are fixed; and at the moment, the stainless steel pouring gate body is fixed through cooperation of the four supporting rods and the supporting ring, and therefore the stability of the stainless steel pouring gate body in the using process is improved.

Description

Technical Field

[0001] This application relates to the field of plastic mold technology, and in particular to an improved plastic mold gate. Background Technology

[0002] In the processing of plastic products, plastic molds are typically used. A plastic mold is a combination mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. The coordinated changes of the mold's punch, die, and auxiliary molding system allow for the production of a series of plastic parts of different shapes and sizes. When adding molten plastic into the mold, a mold gate is used. The mold gate is the device that guides the molten plastic into the mold. However, existing mold gates still have shortcomings; they are prone to shaking during use, which negatively impacts the discharge of the molten plastic. Utility Model Content

[0003] To address the shortcomings of existing mold gates, which are devices for introducing molten plastic into the mold, and which are prone to shaking during use, thus negatively impacting the discharge of molten plastic, this application provides an improved plastic mold gate.

[0004] The improved plastic mold gate provided in this application adopts the following technical solution:

[0005] An improved plastic mold gate includes a support ring, a stainless steel gate body, and four abutment blocks. The stainless steel gate body is fixedly inserted through the support ring. Four support rods are welded to the outer surface of the support ring. One end of each of the four support rods is threaded with a threaded rod. One end of each of the four threaded rods is welded with a rotating block. The other ends of the four threaded rods are movably connected to the four abutment blocks through four connectors. The top surfaces of the four abutment blocks are respectively in contact with the bottom surfaces of the four support rods.

[0006] Preferably, each of the four connectors consists of a fixed cap and a rotating block. The four fixed caps are respectively welded to one side of the four abutting blocks. The four threaded rods respectively movably pass through the four fixed caps. The four rotating blocks are respectively welded to the other end of the four threaded rods. The four rotating blocks are respectively located inside the four fixed caps.

[0007] Preferably, a rubber block is adhered to the other side of each of the four abutment blocks.

[0008] Preferably, a connecting block is welded to the top of each of the two support rods, a grip is welded to one side of each of the two connecting blocks, and a sponge sleeve is fixedly fitted onto the outer surface of each of the two grips.

[0009] In summary, this application includes the following beneficial technical effects: by rotating four rotating blocks, four threaded rods are driven to rotate, and the four threaded rods drive four abutment blocks to move through four connecting parts, so that the four abutment blocks are in close contact with the four sides of the upper mold, and the four support rods are fixed. At this time, the stainless steel gate body is fixed by the cooperation of the four support rods and a support ring, thereby improving the stability of the stainless steel gate body during use. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the application.

[0011] Figure 2 This is a bottom view structural diagram of the first embodiment of the application.

[0012] Figure 3 This is a structural schematic diagram of Embodiment 1 of the application.

[0013] Explanation of reference numerals in the attached drawings: 1. Support ring; 2. Stainless steel gate body; 31. Support rod; 32. Threaded rod; 33. Rotating block; 34. Abutting block; 4. Connecting piece; 41. Fixing cap; 42. Rotating block; 5. Rubber block; 61. Connecting block; 62. Handle. Detailed Implementation

[0014] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail.

[0015] Example 1:

[0016] An improved plastic mold gate, as shown in the reference Figure 1-3The system includes a support ring 1, a stainless steel gate body 2, and four abutment blocks 34. The stainless steel gate body 2 is fixedly inserted through the support ring 1, and the support ring 1 supports the stainless steel gate body 2. Four support rods 31 are welded to the outer surface of the support ring 1. One end of each of the four support rods 31 is threaded through a threaded rod 32. The threads of the four threaded rods 32 can achieve self-locking. The self-locking condition depends on the helix angle, the coefficient of friction, and the load applied. The self-locking condition can be calculated using the following formula: Self-locking condition = Coefficient of friction × tan(helix angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above content is all existing technology. In practical applications, the corresponding self-locking angle can be set according to the friction coefficient of the material, which will not be elaborated here. One end of each of the four threaded rods 32 is welded with a rotating block 33, which facilitates the rotation of the four threaded rods 32. The other end of each of the four threaded rods 32 is movably connected to each of the four abutting blocks 34 through four connecting parts 4. Each of the four connecting parts 4 consists of a fixed cap 41 and a rotating block 42. The four fixed caps 41 are welded to one side of each of the four abutting blocks 34. The four threaded rods 32 movably pass through the four fixed caps 41. The four rotating blocks 42 are welded to the other end of each of the four threaded rods 32. The four rotating blocks 42 are located inside the four fixed caps 41. The support ring 1 is placed above the upper mold in the mold, so that the bottom end of the stainless steel sprue body 2 is inserted into the injection port of the upper mold and communicates with the runner in the mold. Then, the four rotating blocks are rotated. When the four threaded rods 32 rotate, the four threaded rods 32 can move the four abutment blocks 34 with the cooperation of the four fixed caps 41 and the four rotating blocks 42. The top surfaces of the four abutment blocks 34 are respectively attached to the bottom surfaces of the four support rods 31, so that the four abutment blocks 34 can only move and cannot rotate. Rubber blocks 5 are glued to the other side of the four abutment blocks 34. When the four abutment blocks 34 move the four rubber blocks 5 and are in close contact with the four sides of the upper mold, a large friction force is generated during the contact process between the four rubber blocks 5 and the four sides of the upper mold, thereby increasing the stability of the contact between the four abutment blocks 34 and the four sides of the upper mold. At this time, the stainless steel gate body 2 can be fixed by the cooperation of the four support rods 31 and a support ring 1, thereby improving the stability of the stainless steel gate body 2 during use. After the injection liquid is poured into the stainless steel gate body 2, it will flow into the runner and finally be formed in the molding cavity of the runner mold.

[0017] Reference Figure 1 and Figure 2The top of each of the two support rods 31 is welded with a connecting block 61, and a grip rod 62 is welded to one side of each of the two connecting blocks 61. The two grip rods 62 can be connected to the two support rods 31 through the two connecting blocks 61. Holding the two grip rods 62 makes it easy to move the four support rods 31, one support ring 1 and one stainless steel sprue body 2. The outer surface of the two grip rods 62 is fixedly covered with a sponge sleeve, which can improve the comfort of holding the four grip rods 62.

[0018] The foregoing description, with reference to preferred embodiments, provides an exemplary embodiment of an improved plastic mold gate provided by this disclosure. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, the protection scope of which is determined by the appended claims.

Claims

1. An improved plastic mold gate, comprising a support ring (1), a stainless steel gate body (2), and four abutment blocks (34), characterized in that, The stainless steel gate body (2) is fixedly inserted through the support ring (1). Four support rods (31) are welded to the outer surface of the support ring (1). One end of each of the four support rods (31) is threaded through a threaded rod (32). One end of each of the four threaded rods (32) is welded with a rotating block (33). The other end of each of the four threaded rods (32) is movably connected to four abutting blocks (34) through four connectors (4). The top surface of each of the four abutting blocks (34) is in contact with the bottom surface of each of the four support rods (31).

2. The improved plastic mold gate according to claim 1, characterized in that: Each of the four connectors (4) consists of a fixed cap (41) and a rotating block (42). The four fixed caps (41) are respectively welded to one side of the four abutting blocks (34). The four threaded rods (32) respectively move through the four fixed caps (41). The four rotating blocks (42) are respectively welded to the other end of the four threaded rods (32). The four rotating blocks (42) are respectively located inside the four fixed caps (41).

3. The improved plastic mold gate according to claim 1, characterized in that: Rubber blocks (5) are glued to the other side of each of the four contact blocks (34).

4. The improved plastic mold gate according to claim 1, characterized in that: The top of each of the two support rods (31) is welded with a connecting block (61), and a grip (62) is welded to one side of each of the two connecting blocks (61). The outer surface of each of the two grips (62) is fixedly fitted with a sponge sleeve.

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