Injection mold with embedded pillar assembly

Abstract

This utility model discloses an injection molding die with a set of inserts, including a lower mold core, on which a cavity outer wall A is formed to match the outer contour of a twisted cap with concave and convex outer walls. A higher mold sleeve is provided corresponding to the lower mold core, matching the top cavity of the cap. An upper mold body is fitted inside the upper mold sleeve, with a corresponding part A at the bottom of the upper mold body. This corresponding part A matches the inner wall of the cavity, which includes a bottle neck holding serrated platform and a bottle positioning boss. An upper mold insert is slidably mounted inside the upper mold sleeve, with a corresponding part B at the bottom of the upper mold insert. This corresponding part B matches the inner wall of the forming cavity of a tightening screw. The upper mold core, upper mold body, and upper mold insert are combined to form an injection molding structure with an upper mold insert.

Description

Technical Field

[0001] This utility model relates to precision manufacturing, and in particular to injection molding technology. Specifically, it relates to an injection molding mold with a set of embedded pillars. Background Technology

[0002] See Figure 1 The cap 100 includes a twist cap 101 with an outer wall that is concave and convex. The inner cavity of the twist cap 101 has a tightening screw that matches the screw opening of the bottle. The upper part of the twist cap 101 is connected to a bottle mouth holding serrated platform 102. The bottle mouth holding serrated platform 102 is connected to an outer cap part 103. The outer cap part 103 is provided with a bottle positioning boss 104. In the current injection molding method, a core with a matching tightening screw, bottle mouth holding serrated platform 102, and bottle positioning boss 104 is generally set on the lower mold. After molding, the desired cap 100 is obtained by force ejection. In the current molding method, the tightening screw is easily damaged during force ejection, which affects the product quality. Moreover, the core of the lower mold is integrally machined with elements such as the matching tightening screw, bottle mouth holding serrated platform 102, and bottle positioning boss 104, which is difficult to process.

[0003] Therefore, there is a need to provide an injection molding die with a set of embedded pillars to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an injection molding mold with a set of embedded pillars.

[0005] This utility model achieves the above objectives through the following technical solution:

[0006] An injection molding die with a set of inserts includes a lower mold core, on which a cavity outer wall A is formed to match the outer contour of a twisted cap with concave and convex outer walls. A higher mold sleeve is nested corresponding to the lower mold core, matching the top cavity of the cap. An upper mold body is nested inside the upper mold sleeve, with a corresponding portion A at its bottom that matches the cavity inner wall, which in turn matches the cavity inner wall of a bottle neck holding serrated platform and a bottle positioning boss. An upper mold insert is slidably disposed within the upper mold sleeve, with a corresponding portion B at its bottom that matches the cavity inner wall of a forming cavity with a tightening screw. The upper mold core, upper mold sleeve, and upper mold insert are combined to form the injection molding structure with the upper mold insert.

[0007] Furthermore, the lower mold insert is provided with a lower insert plate, and the outer wall B of the mold cavity matching the outer cover is set on the lower insert plate.

[0008] Furthermore, the lower panel is formed by a combination of a set of lower panel side panels.

[0009] Furthermore, the bottom of the upper mold sleeve is conical.

[0010] Furthermore, the upper mold insert is connected to a spiral ejection drive.

[0011] Furthermore, the spiral ejection drive is a rotating gear fixedly sleeved on the upper mold insert. The rotating gear is driven by the outside to drive the upper mold insert to rotate. As long as the cover body is positioned for ejection from the lower mold, such as by holding it down by hand, the cover body can be ejected through the spiral at the bottom of the upper mold insert corresponding to the inner wall B of the mold cavity.

[0012] Compared with the prior art, this utility model separates the corresponding elements through the injection molding structure with the upper sleeve embedded column, which facilitates the setting of the molding cavity. When the cover is demolded, it is only necessary to position the cover that is ejected from the lower mold, such as by holding it down by hand. The upper mold embedded column has a spiral at the bottom with the corresponding part B on the inner wall of the mold cavity. The upper mold embedded column rotates and the cover can be ejected. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the injection needle hub 100.

[0014] Figure 2 This is one of the structural schematic diagrams of this utility model.

[0015] Figure 3 This is the second structural schematic diagram of this utility model.

[0016] Figure 4 This is the third structural schematic diagram of this utility model.

[0017] Figure 5 This is a structural schematic diagram of the upper mold sleeve.

[0018] Figure 6 This is a schematic diagram of the upper mold insert column structure. Detailed Implementation

[0019] Example:

[0020] See Figure 2-6This embodiment illustrates an injection molding die with a set of inserts, including a lower mold insert 1. The lower mold insert 1 has an outer wall A11 of a mold cavity that matches the outer contour of a torsion cap 101 with concave and convex outer walls. An upper mold sleeve 2 is provided corresponding to the lower mold insert 1. The upper mold sleeve 2 matches the top cavity of the outer cap 103. An upper mold sleeve body 3 is fitted inside the upper mold sleeve 2. The bottom of the upper mold sleeve body 3 has a corresponding portion A31 of the inner wall of the mold cavity. The inner wall corresponding part A31 matches the inner wall of the mold cavity of the bottle mouth pressing sawtooth platform 102 and the bottle positioning boss 104; the upper mold sleeve body 3 is slidably provided with an upper mold insert 4, the bottom of the upper mold insert 4 has a mold cavity inner wall corresponding part B40, the mold cavity inner wall corresponding part B40 matches the inner wall of the forming mold cavity of the tightening screw; through the upper mold sleeve nesting 2, the upper mold sleeve body 3, and the upper mold insert 4, the lower mold insert core is combined to form an injection molding structure with an upper insert.

[0021] The lower mold insert 1 is provided with a lower insert plate 5, and the outer wall B of the mold cavity matching the outer cover 103 is provided on the lower insert plate 5.

[0022] The lower insert 5 is formed by a set of lower insert side plates 51.

[0023] The bottom of the upper mold body 3 is conical.

[0024] The upper mold insert 4 is connected to a spiral ejection drive component 41.

[0025] The spiral ejection drive 41 is a rotating gear fixedly sleeved on the upper mold insert 4. The rotating gear is driven by the outside to drive the upper mold insert 4 to rotate. As long as the lower mold ejection cover 100 is positioned, such as by pressing it with your hand, the cover can be ejected through the spiral at the bottom of the upper mold insert with the corresponding part B of the inner wall of the mold cavity.

[0026] Compared with the prior art, this utility model separates the corresponding elements through the injection molding structure with the upper sleeve embedded column, which facilitates the setting of the molding cavity. When the cover is demolded, it is only necessary to position the cover that is ejected from the lower mold, such as by holding it down by hand. The upper mold embedded column has a spiral at the bottom with the corresponding part B on the inner wall of the mold cavity. The upper mold embedded column rotates and the cover can be ejected.

[0027] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. An injection molding die with a set of insert pillars, characterized in that: The system includes a lower mold insert, on which a mold cavity outer wall A is formed to match the concave-convex outer contour of the twisted cap. A corresponding upper mold sleeve is provided, which matches the top mold cavity of the cap. An upper mold sleeve body is fitted inside the upper mold sleeve, and the bottom of the upper mold sleeve body has a corresponding part A of the inner wall of the mold cavity. The corresponding part A of the inner wall of the mold cavity matches the inner wall of the mold cavity, which is composed of a bottle mouth pressing serrated platform and a bottle positioning boss. An upper mold insert is slidably provided inside the upper mold sleeve body. The bottom of the upper mold insert has a corresponding part B of the inner wall of the mold cavity, which matches the inner wall of the forming mold cavity of the tightening screw. The upper mold sleeve, the upper mold sleeve body, and the upper mold insert are combined with the lower mold insert to form an injection molding structure with an upper insert.

2. The injection molding mold with embedded pillar assembly according to claim 1, characterized in that: The lower mold insert is provided with a lower insert plate, and the outer wall B of the mold cavity matching the outer cover is set on the lower insert plate.

3. The injection molding mold with embedded pillar assembly according to claim 2, characterized in that: The lower panel is formed by a set of lower panel side panels.

4. The injection molding mold with embedded pillar assembly according to claim 1, characterized in that: The bottom of the upper mold sleeve is conical.

5. The injection molding mold with a set of embedded pillars according to claim 1, characterized in that: The upper mold insert is connected to a spiral ejection drive.

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