Injection mold with mold core convenient to replace

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an injection mold with a mold core convenient to replace, which comprises a mold body, the mold body is detachably mounted on a mold plate, the mold core is embedded on one side, far away from the mold plate, of the mold body, and a quick release component for pushing the mold core out of the mold body is arranged on the mold body. The mold core is arranged on the mold body, the mold core is fixedly arranged on the mold body, the quick release assembly comprises a plurality of first push blocks which are arranged on the mold body in a sliding manner and a plurality of second push blocks which are fixedly arranged on the mold core, and inclined planes which are matched with each other are arranged on the first push blocks and the second push blocks. And when the mold core needs to be replaced, the fixing base is pushed, the first push blocks in the same row are driven to move through the connecting rods, and the four first push blocks are pushed at the same time, so that the mold core can be effectively pushed out, and the mold core is prevented from being clamped in the mold body.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold which is convenient for replacing a mold core. Background Art

[0002] Injection molding products can be divided into large-scale mass production and small-scale production according to the production quantity. The characteristics of small-scale production are small quantity and extremely short delivery time. Therefore, it is impossible for the mold to be one mold for one product like the traditional mold. Most of the current market models are a set of mold frames with multiple sets of mold cores, that is, one mold frame with multiple mold cores and multiple products. However, this model still has relatively troublesome problems in the injection molding process. The steps for disassembling the mold core in the prior art are: first, release the connection between the mold and the injection molding machine, then hook the mold on the lifting ring, detach the injection molding machine through the crane-type mold, and then remove the bolts connecting the template and the mold body, separate the template from the mold body, and remove the bolts connecting the mold body and the mold core. There are several through holes on the mold body. The staff inserts the iron rods into the through holes one by one, and then uses tools to beat the iron rods, thereby promoting the separation of the mold core and the mold body. On the one hand, it takes at least one hour to change the model, the injection molding machine is in an ineffective state, and the workers' workload is also high. On the other hand, inserting iron rods into the through holes one by one to hammer may cause the core to get stuck on the mold body, making it difficult to remove the core. Utility Model Content

[0003] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides an injection mold which is convenient for replacing the mold core.

[0004] An injection mold for facilitating replacement of a mold core comprises a mold body, wherein the mold body is detachably mounted on a template, the mold core is engaged with the mold body on a side away from the template, the mold body is provided with a quick-release assembly for pushing the mold core out of the mold body, the quick-release assembly comprises a plurality of first push blocks slidably mounted on the mold body and second push blocks fixedly mounted on the mold core, the first push blocks and the second push blocks being provided with inclined surfaces that cooperate with each other.

[0005] Furthermore, the first push blocks located in the same row are connected to each other via a connecting rod, one end of the connecting rod extends out of the mold body and is connected to a fixing seat, and the fixing seat is fixedly mounted on the template via bolts.

[0006] Furthermore, the first push block is slidably connected to the mold body via a through slot, and cover plates are provided on both sides of the through slot, and the cover plates are mounted on the mold body.

[0007] Furthermore, the template has several circular positioning seats on the end surface close to the mold body, the positioning seats are in contact with both sides of the mold body, and plug blocks are installed on the positioning seats through positioning bolts. The plug blocks are provided with waist-shaped holes at the positioning bolts, and gaskets are provided between the plug blocks and the bolt heads of the positioning bolts. The mold body is provided with slots corresponding to the plug blocks.

[0008] Furthermore, the upper and lower ends of the mold body are provided with limit blocks, and the template is provided with limit grooves corresponding to the limit blocks.

[0009] Furthermore, the upper and lower ends of the mold core are provided with limiting protrusions.

[0010] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is: in the utility model, the mold core can be quickly disassembled through the quick-release assembly, and there is no need to disassemble the entire mold, which improves work efficiency and saves labor. When the mold core needs to be replaced, first remove the bolts connecting the mold core and the mold body, then remove the bolts connecting the fixed seat and the template, push the fixed seat, and drive the first push blocks in the same row to move through the connecting rod. By pushing the four first push blocks at the same time, the mold core can be effectively pushed out to prevent the mold core from being stuck in the mold body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural schematic diagram of an injection mold that is convenient for replacing the mold core of the utility model;

[0012] Figure 2 This is a front view of an injection mold that is convenient for replacing mold cores according to the utility model;

[0013] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0014] Figure 4 For this utility model Figure 2 Schematic diagram of the cross-sectional structure along the BB direction.

[0015] In the figure, 1, mold body, 2, template, 3, mold core, 4, first push block, 5, second push block, 6, connecting rod, 7, fixed seat, 8, through groove, 9, cover plate, 10, positioning seat, 11, insert block, 12, positioning bolt, 13, waist-shaped hole, 14, gasket, 15, slot, 16, limit block, 17, limit groove, 18, limit protrusion. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0017] according to Figure 1-4 As shown, an injection mold for facilitating replacement of a mold core comprises a mold body 1, wherein the mold body 1 is detachably mounted on a template 2, the mold core 3 is engaged with the mold body 1 on a side away from the template 2, the mold body 1 is provided with a quick-release assembly for pushing the mold core 3 out of the mold body 1, the quick-release assembly comprises a plurality of first push blocks 4 slidably mounted on the mold body 1 and second push blocks 5 fixedly mounted on the mold core 3, the first push blocks 4 and the second push blocks 5 are provided with inclined surfaces that cooperate with each other.

[0018] In the above specific embodiment, the mold core 3 can be quickly disassembled through the quick-release assembly without disassembling the entire mold, thereby improving work efficiency and saving labor. The first push block 4 and the second push block 5 cooperate with each other through the inclined surface. By pushing the first push block 4 laterally, the second push block 5 moves away from the first push block 4, so that the mold core 3 is separated from the mold body 1, thereby realizing the disassembly of the mold core 3.

[0019] The first push blocks 4 located in the same row are connected to each other through a connecting rod 6, one end of the connecting rod 6 extends out of the mold body 1 and is connected to a fixing seat 7, and the fixing seat 7 is fixedly installed on the template 2 by bolts. It is worth noting that a plurality of bolts are provided on the front of the mold core 3 (as shown in the figure), and the mold core 3 and the mold body 1 are fastened together by bolts. When the mold core 3 needs to be replaced, the bolts connecting the mold core 3 and the mold body 1 are first removed, and then the bolts connecting the fixing seat 7 and the template 2 are removed, and the fixing seat 7 is pushed to drive the first push blocks 4 in the same row to move through the connecting rod 6. Preferably, two first push blocks 4 are provided in each row, and there are two rows. By pushing four first push blocks 4 at the same time, the mold core 3 can be effectively pushed out to prevent the mold core 3 from being stuck in the mold body 1.

[0020] The first push block 4 is slidably connected to the mold body 1 via a through slot 8 . Cover plates 9 are provided on both sides of the through slot 8 . The cover plates 9 are mounted on the mold body 1 .

[0021] The template 2 has a plurality of circular positioning seats 10 on the end surface close to the mold body 1. The positioning seats 10 are in contact with both sides of the mold body 1. An insert block 11 is installed on the positioning seat 10 through a positioning bolt 12. A waist-shaped hole 13 is provided on the insert block 11 at the positioning bolt 12. A gasket 14 is provided between the insert block 11 and the bolt head of the positioning bolt 12. A slot 15 corresponding to the insert block 11 is provided on the mold body 1. The insert block 11 is rotated to insert the insert block 11 into the slot 15, and the positioning bolt 12 is screwed to fix the mold body 1 and the template 2.

[0022] Limit blocks 16 are provided at the upper and lower ends of the mold body 1 , and limit grooves 17 corresponding to the limit blocks 16 are provided on the template 2 . The positioning seat 10 and the limit blocks 16 are used to realize the positioning and installation of the mold body 1 .

[0023] The upper and lower ends of the mold core 3 are provided with limiting protrusions 18, which are conducive to the accurate positioning of the mold core 3 during installation. When the mold core 3 needs to be installed, a part of the mold core 3 is embedded in the mold body 1, the mold core 3 is hammered into the mold body 1, and then the bolts are screwed on the front side of the mold core 3, and the mold core 3 is firmly connected to the mold body 1.

[0024] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An injection mold for facilitating the replacement of a mold core, comprising a mold body (1), characterized in that: The mold body (1) is detachably mounted on the template (2); the mold core (3) is engaged with the mold body (1) on a side away from the template (2); the mold body (1) is provided with a quick-release component for pushing the mold core (3) out of the mold body (1); the quick-release component includes a plurality of first push blocks (4) slidably mounted on the mold body (1) and a second push block (5) fixedly mounted on the mold core (3); the first push block (4) and the second push block (5) are provided with mutually matching inclined surfaces.

2. The injection mold for easy replacement of mold core according to claim 1, characterized in that: The first push blocks (4) located in the same row are connected to each other via a connecting rod (6), one end of the connecting rod (6) extends out of the mold body (1) and is connected to a fixing seat (7), and the fixing seat (7) is fixedly mounted on the template (2) via bolts.

3. The injection mold for easy replacement of mold core according to claim 2, characterized in that: The first push block (4) is slidably connected to the mold body (1) via a through slot (8), and cover plates (9) are provided on both sides of the through slot (8), and the cover plates (9) are mounted on the mold body (1).

4. The injection mold for easy replacement of mold core according to claim 3, characterized in that: The template (2) is provided with a plurality of circular positioning seats (10) on the end surface close to the mold body (1), the positioning seats (10) are in contact with both sides of the mold body (1), an insert block (11) is installed on the positioning seat (10) via a positioning bolt (12), a waist-shaped hole (13) is provided on the insert block (11) at the location of the positioning bolt (12), a gasket (14) is provided between the insert block (11) and the bolt head of the positioning bolt (12), and a slot (15) corresponding to the insert block (11) is provided on the mold body (1).

5. The injection mold for easy replacement of mold core according to claim 4, characterized in that: The upper and lower ends of the mold body (1) are provided with limit blocks (16), and the template (2) is provided with limit grooves (17) corresponding to the limit blocks (16).

6. The injection mold for easy replacement of mold core according to claim 5, characterized in that: Limiting protrusions (18) are provided at the upper and lower ends of the mold core (3).

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