Injection mold convenient for core pulling

Abstract

The injection mold comprises an upper mold plate, an upper mold cavity plate is installed in a groove formed in the bottom end of the upper mold plate, a plurality of mold cavities are formed in the bottom end of the upper mold cavity plate at equal intervals, a plurality of head end flow guide openings are formed in the top of the head end of the upper mold cavity plate at equal intervals, and the head end flow guide openings are communicated with the mold cavities. The two sides of the bottom end of the head end flow guide opening communicate with flow dividing grooves correspondingly, the flow dividing grooves are formed in the bottom of the head end of the upper mold cavity plate, the two flow dividing grooves of the head end flow guide opening communicate with the interiors of the two adjacent mold cavities correspondingly, and a plurality of tail end flow guide openings are formed in the tail end of the upper mold cavity plate at equal intervals. The multiple tail end flow guide openings are communicated with the interiors of the multiple cavities respectively, and a lower mold plate is arranged below the upper mold plate. According to the injection mold convenient for core pulling, raw materials can be injected from the head end and the tail end of the mold cavity together, so that the raw materials in the mold cavity are distributed more uniformly, gaps are avoided, and the product quality is improved.

Description

Technical Field

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

[0002] Injection mold refers to injection molding, which is also called injection molding. It is a molding method that combines injection and molding. The advantages of injection molding are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size, and easy product replacement. When producing some products, you need to use a core-pulling injection mold.

[0003] However, existing core-removable injection molds often only inject raw materials from one end, and the raw materials are easily unevenly distributed during the flow process, and gaps are easily generated, which affects the quality of the product after injection molding. Utility Model Content

[0004] The purpose of the utility model is to provide an injection mold that is convenient for core pulling, and can inject raw materials from the head end and the tail end of the mold cavity at the same time, so that the raw materials in the mold cavity are distributed more evenly, avoiding the generation of gaps, thereby improving the quality of the product and solving the problems raised by the above technical background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection mold for convenient core pulling, comprising: an upper mold plate, an upper mold cavity plate is installed in a groove opened at the bottom end of the upper mold plate, a plurality of cavities are equidistantly opened at the bottom end of the upper mold cavity plate, a plurality of head end guide ports are equidistantly opened at the top end of the head end of the upper mold cavity plate, both sides of the bottom end of the head end guide port are connected with diversion grooves, the diversion grooves are opened at the bottom end of the head end of the upper mold cavity plate, and the two diversion grooves of the head end guide port are respectively connected to two adjacent cavities, a plurality of tail end guide ports are equidistantly opened at the tail end of the upper mold cavity plate, and a plurality of the tail end guide ports are respectively connected to a plurality of cavities, a lower mold plate is arranged below the upper mold plate, a lower mold cavity plate is installed in a groove opened at the top end of one side of the lower mold plate, the cavity between the upper mold cavity plate and the lower mold cavity plate constitutes a mold cavity, and a core pulling assembly is installed on one side of the lower mold cavity plate;

[0006] The upper template is used to install the upper cavity plate, which is used to cooperate with the lower cavity plate to form a cavity. The head end guide port is used to introduce a large amount of raw materials into the diversion groove, which is used to divert the raw materials introduced by the head end guide port to the head ends of the cavities on both sides. The tail end guide port is used to introduce a small amount of raw materials into the tail end of the cavity. The lower template is used to install the lower cavity plate, which is used to cooperate with the upper cavity plate to form a cavity. The core pulling assembly is used to pull out the core for easy demolding.

[0007] Preferably, a heat flow plate is installed on the top of the upper mold plate, and a top plate is installed on the top of the heat flow plate; the heat flow plate is used to accommodate the hot runner, and the top plate is used to connect external equipment and can be installed with a feed port.

[0008] Preferably, support blocks are installed on both sides of the bottom end of the lower template, and bottom plates are installed at the bottom ends of the two support blocks; the support blocks are used to support the lower template, and the bottom plate is used to fix the lower module and place the lifting plate.

[0009] Preferably, a lifting plate is arranged above the base plate, a fixed plate is installed on the top of the lifting plate, and a plurality of lifting rods are installed between the lifting plate and the fixed plate; the lifting plate is used to lift the fixed plate, the fixed plate is used to fix the lifting rods, and the lifting rods are used to lift the product, thereby performing demoulding.

[0010] Preferably, the core pulling assembly includes a mounting plate, a cylinder, a connecting rod, a snap head, a core pulling plate and a mold core, the mounting plate is mounted on one side of the lower mold plate, the cylinder is mounted on one side of the mounting plate, one end of the connecting rod is mounted on the output end of the cylinder, the snap head is mounted on the other end of the connecting rod, one side of the core pulling plate is snap-connected to the snap head, several mold cores are equidistantly mounted on the other side of the core pulling plate, and several mold cores are respectively located in several mold cavities; the mounting plate is used to mount the cylinder, the cylinder is used to drive the connecting rod to move, the connecting rod is used to drive the snap head to move, the snap head is used to drive the core pulling plate to move, the core pulling plate is used to mount the mold core and drive the mold core to move, and the mold core is used to cooperate with the mold cavity to generate products.

[0011] Preferably, the core-pulling plate is movably connected with a slide groove, and the slide groove is opened at the top end of the other side of the lower template; the slide groove is used to provide a channel for the core-pulling plate to slide.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The upper mold plate and the lower mold plate are molded together, the upper mold cavity plate and the lower mold cavity plate are fitted together, and the mold cavities cooperate with each other to form a mold cavity. Then, the raw materials are introduced and flow into the head end guide port and the tail end guide port. The main raw materials flow through the head end guide port and then enter the head end of the mold cavity after being diverted by the diversion groove. A small amount of raw materials enter the tail end of the mold cavity through the tail end guide port to fill the remaining gap in the mold cavity. After the raw materials are injected, the injection molding work is carried out. After the injection molding is completed, the core pulling assembly pulls out the mold core, so as to carry out the demoulding work;

[0014] The injection mold which is convenient for core pulling can inject raw materials from both the head end and the tail end of the mold cavity, so that the raw materials in the mold cavity are distributed more evenly, gaps are avoided, and thus the quality of the product is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the upper template of the utility model;

[0017] Figure 3 This is a structural schematic diagram of the lower template of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the upper mold cavity plate of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the bottom plate of the utility model.

[0020] The reference numerals and names in the figures are as follows:

[0021] 100, upper template; 110, upper cavity plate; 111, head end guide port; 112, diverter slot; 113, tail end guide port; 120, heat flow plate; 130, top plate; 200, lower template; 210, lower cavity plate; 220, support block; 230, bottom plate; 240, lifting plate; 250, fixing plate; 260, lifting rod; 270, slide; 300, core pulling assembly; 310, mounting plate; 320, cylinder; 330, connecting rod; 340, buckle head; 350, core pulling plate; 360, core. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figures 1 to 5The utility model provides an embodiment of an injection mold for convenient core pulling, comprising: an upper mold plate 100, an upper mold cavity plate 110 is connected to the groove at the bottom of the upper mold plate 100 by bolts, eight cavities are evenly spaced at the bottom of the upper mold cavity plate 110, four head end guide ports 111 are evenly spaced at the top of the head end of the upper mold cavity plate 110, both sides of the bottom end of the head end guide port 111 are connected with a diverter groove 112, the diverter groove 112 is opened at the bottom of the head end of the upper mold cavity plate 110, and the head end guide port 111 The two diverter grooves 112 are respectively connected to two adjacent cavities, and eight tail end guide ports 113 are equidistantly provided at the tail end of the upper mold cavity plate 110, and the eight tail end guide ports 113 are respectively connected to eight mold cavities, and a lower mold plate 200 is arranged below the upper mold plate 100, and a lower mold cavity plate 210 is connected to the groove opened at the top of one side of the lower mold plate 200 by bolts, and the mold cavity between the upper mold cavity plate 110 and the lower mold cavity plate 210 constitutes a mold cavity, and a core pulling assembly 300 is installed on one side of the lower mold cavity plate 210;

[0025] During specific use, the upper template 100 and the lower template 200 are closed, the upper cavity plate 110 and the lower cavity plate 210 are fitted together, and the cavities cooperate with each other to form a cavity, and then the raw materials are introduced, and the raw materials flow into the head end guide port 111 and the tail end guide port 113. The main raw materials pass through the head end guide port 111 and the diverter groove 112 to enter the head end of the cavity, and a small amount of raw materials enter the tail end of the cavity through the tail end guide port 113 to fill the remaining gaps in the cavity. After the raw material injection is completed, injection molding is carried out. After the injection molding is completed, the core pulling assembly 300 pulls out the core 360 ​​to perform demolding.

[0026] Embodiment 2

[0027] See also Figures 1 to 5 The utility model provides an injection mold that is convenient for core pulling. Compared with the first embodiment, the present embodiment also includes:

[0028] The top of the upper mold plate 100 is connected to the hot runner plate 120 by bolts, and the top of the hot runner plate 120 is connected to the top plate 130 by bolts; the raw material is introduced through the feed port installed on the top plate 130, and the raw material passes through the hot runner in the hot runner plate 120 and enters the mold cavity.

[0029] Both sides of the bottom end of the lower template 200 are connected with support blocks 220 by bolts, and the bottom ends of the two support blocks 220 are connected with bottom plates 230 by bolts; the support blocks 220 are fixed by the bottom plates 230, and the support blocks 220 support the lower template 200.

[0030] A lifting plate 240 is arranged above the base plate 230, and the top of the lifting plate 240 is connected to the fixing plate 250 by bolts, and twenty lifting rods 260 are snap-connected between the lifting plate 240 and the fixing plate 250; an external lifting device is passed through the lifting hole at the bottom end of the base plate 230, and the lifting device lifts the lifting plate 240, and the lifting plate 240 drives the lifting rods 260 to lift up through the fixing plate 250, and the lifting rods 260 lift the product to complete demoulding.

[0031] The core pulling assembly 300 includes a mounting plate 310, a cylinder 320, a connecting rod 330, a buckle head 340, a core pulling plate 350 and a mold core 360. The mounting plate 310 is connected to one side of the lower mold plate 200 by bolts, the cylinder 320 is connected to one side of the mounting plate 310 by bolts, one end of the connecting rod 330 is embedded in the output end of the cylinder 320, the buckle head 340 is embedded in the other end of the connecting rod 330, and the core pulling plate 350 is connected to the output end of the cylinder 320. One side of the buckle is connected to the buckle head 340, and the eight cores 360 are equidistantly installed on the other side of the core pulling plate 350, and the eight cores 360 are respectively located in eight mold cavities; through the operation of the cylinder 320, the cylinder 320 drives the connecting rod 330 to move, the connecting rod 330 drives the buckle head 340 to move, the buckle head 340 drives the core pulling plate 350 to move, the core pulling plate 350 drives the core 360 ​​to move, and the core 360 ​​is pulled out of the mold cavity, thereby no longer blocking the demoulding of the product.

[0032] The core-pulling plate 350 is slidably connected to a slide groove 270 , and the slide groove 270 is provided at the top of the other side of the lower template 200 ; the core-pulling plate 350 is moved in the slide groove 270 , thereby pulling out the core-pulling plate 350 .

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An injection mold that is convenient for core pulling, characterized in that: include: An upper mold plate (100) is installed in a groove formed at the bottom of the upper mold plate (100), a plurality of cavities are formed at equal intervals at the bottom of the upper mold plate (110), a plurality of head end flow guide ports (111) are formed at equal intervals at the top of the head end of the upper mold plate (110), both sides of the bottom of the head end flow guide ports (111) are connected to flow diversion grooves (112), the flow diversion grooves (112) are formed at the bottom of the head end of the upper mold plate (110), and the two flow diversion grooves (112) of the head end flow guide ports (111) are respectively connected to the head end of the upper mold plate (110). In two adjacent cavities, a plurality of tail end guide ports (113) are equidistantly provided at the tail end of the upper cavity plate (110), and the plurality of tail end guide ports (113) are respectively connected to a plurality of cavities. A lower mold plate (200) is provided below the upper mold plate (100), and a lower mold plate (210) is installed in a groove provided at the top end of one side of the lower mold plate (200). The cavity between the upper mold plate (110) and the lower mold plate (210) constitutes a mold cavity, and a core pulling assembly (300) is installed on one side of the lower mold plate (210).

2. The convenient core-pulling injection mold according to claim 1, characterized in that: A heat flux plate (120) is installed at the top end of the upper mold plate (100), and a top plate (130) is installed at the top end of the heat flux plate (120).

3. The convenient core-pulling injection mold according to claim 1, characterized in that: Support blocks (220) are installed on both sides of the bottom end of the lower template (200), and bottom plates (230) are installed at the bottom ends of the two support blocks (220).

4. The convenient core-pulling injection mold according to claim 3, characterized in that: A lifting plate (240) is arranged above the bottom plate (230), a fixing plate (250) is installed at the top of the lifting plate (240), and a plurality of lifting rods (260) are installed between the lifting plate (240) and the fixing plate (250).

5. The convenient core-pulling injection mold according to claim 1, characterized in that: The core pulling assembly (300) comprises a mounting plate (310), a cylinder (320), a connecting rod (330), a snap head (340), a core pulling plate (350) and a mold core (360), wherein the mounting plate (310) is mounted on one side of a lower mold plate (200), the cylinder (320) is mounted on one side of the mounting plate (310), one end of the connecting rod (330) is mounted on the output end of the cylinder (320), the snap head (340) is mounted on the other end of the connecting rod (330), one side of the core pulling plate (350) is snap-connected to the snap head (340), a plurality of the mold cores (360) are equidistantly mounted on the other side of the core pulling plate (350), and the plurality of the mold cores (360) are respectively located in a plurality of mold cavities.

6. The convenient core-pulling injection mold according to claim 5, characterized in that: The core-pulling plate (350) is movably connected with a slide groove (270), and the slide groove (270) is opened at the top end of the other side of the lower template (200).

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