Detachable mold sealing structure

Abstract

The utility model provides a detachable mould glue sealing structure, its through setting detachable insert to facilitate the processing of glue sealing bar, special glue sealing structure can also reduce its deformation damage possibility, its structure includes former mould and rear mould, and the former mould and rear mould are equipped with product cavity between, the upper end surface of rear mould is equipped with the glue sealing bar of extending upwards, and the side of glue sealing bar is equipped with insert no.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a detachable mold sealing structure. Background Technology

[0002] In multi-color mold design, the first color sealing structure is influenced by the product shape. It is usually designed as a rib with a width of at least 2mm and a height of no more than 1mm for sealing. With the continuous innovation of product shape, the width and height ratio of the sealing rib is out of balance, and the shape of the sealing rib is becoming more and more irregular. The actual processing of the sealing rib is complicated and the repair is difficult. At the same time, the sealing rib with an out-of-balance width and height ratio is also prone to deformation and damage, affecting normal use. Utility Model Content

[0003] To address the problems of existing sealing strips being inconvenient to process and prone to deformation and damage, this utility model provides a detachable mold sealing structure. This structure facilitates the processing of the sealing strip by incorporating detachable inserts, while the unique sealing structure also reduces the likelihood of deformation and damage.

[0004] The technical solution is as follows: a detachable mold sealing structure includes a front mold core and a rear mold core, with a product cavity between the front mold core and the rear mold core. The upper end face of the rear mold core is provided with an upwardly extending sealing rib. The characteristic is that: an insert is provided on the side of the sealing rib away from the product cavity, and the insert is detachably fixed to the rear mold core. When the insert is removed, the side of the sealing rib away from the product cavity is empty, forming a processing notch for processing the sealing rib; the front mold core is fixedly connected to an insert, and the insert includes a baffle extending above the sealing rib. The baffle and the sealing rib contact each other and work together to seal the rib.

[0005] Furthermore, the retaining rib includes a sealing portion and a supporting portion. The sealing portion is located above the sealing rib and in contact with the sealing rib, and the supporting portion extends to the side of the sealing rib to support the sealing rib.

[0006] Furthermore, there is a clearance notch between the insert and the rear mold core for avoiding the stop rib.

[0007] Furthermore, the second insert is connected to the front mold core by screws.

[0008] Beneficial effects: 1. By setting the insert, a processing notch can be created after disassembly, thus providing sufficient space for processing the sealing rib; 2. The retaining rib and the sealing rib both serve the sealing function, which can divide the sealing rib, which originally had an unbalanced width-to-height ratio, into two sections, reducing the possibility of deformation and damage. In addition, by extending the support to the side of the sealing rib to provide support, the possibility of deformation and damage is further reduced. Attached Figure Description

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

[0010] Figure 2 for Figure 1 Enlarged diagram of point A in the middle. Detailed Implementation

[0011] like Figure 1 , Figure 2 The detachable mold sealing structure shown includes a front mold core 1 and a rear mold core 2. A product cavity is provided between the front mold core 1 and the rear mold core 2. The product cavity is used to form a product 3 by injection molding. The upper end face of the rear mold core 2 is provided with an upwardly extending sealing rib 4. An insert 5 is provided on the side of the sealing rib 4 away from the product cavity. The insert 5 is detachably fixed to the rear mold core 2 by screws. When the insert 5 is removed, the side of the sealing rib 4 away from the product cavity is empty, forming a machining notch for machining the sealing rib 4. The front mold core 1 can be fixedly connected to an insert 7 by screws. The insert 7 includes a baffle 6 extending above the sealing rib 4. The baffle 6 and the sealing rib 4 contact each other and work together to seal. With the above structure, after the insert 5 is removed, sufficient space can be formed at the rear mold core 2 for machining the sealing rib 4. At the same time, the baffle 6 and the sealing rib 4 are located at the rear end of the product cavity for sealing.

[0012] As a preferred option, combined Figure 2 The retaining rib 6 includes a sealing part 61 and a supporting part 62. The sealing part 61 is located above the sealing rib 4 and mates with and contacts the sealing rib 4. The length of the mating part can be 1mm-3mm to ensure that the product 3 is properly sealed. The supporting part 62 extends to the side of the sealing rib 4 to mate with and support the sealing rib 4. The length of the mating part can be 2mm-3mm, which can reduce the impact of injection molding impact on the sealing rib 4. At the same time, there can be a clearance notch 8 between the insert 5 and the rear mold core 2 to avoid the retaining rib 6.

[0013] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A detachable mold sealing structure, comprising a front mold core and a rear mold core, wherein a product cavity is provided between the front mold core and the rear mold core, and an upwardly extending sealing rib is provided on the upper end face of the rear mold core, characterized in that: The sealing rib has an insert one on the side facing away from the product cavity. The insert one is detachably fixed to the rear mold core. When the insert one is removed, the side of the sealing rib facing away from the product cavity is empty, forming a machining notch for machining the sealing rib. The front mold core is fixedly connected to an insert two. The insert two includes a baffle extending above the sealing rib. The baffle and the sealing rib contact each other and work together to seal the rib.

2. The detachable mold sealing structure according to claim 1, characterized in that: The retaining rib includes a sealing part and a supporting part. The sealing part is located above the sealing rib and in contact with the sealing rib. The supporting part extends to the side of the sealing rib to support the sealing rib.

3. The detachable mold sealing structure according to claim 2, characterized in that: There is a clearance notch between the insert and the rear mold core for avoiding the stop rib.

4. The detachable mold sealing structure according to claim 1, characterized in that: The second insert is connected to the front mold core by screws.

Images