Efficient injection mold capable of automatically falling off product without ejection and mold opening

Abstract

The utility model discloses an efficient injection mold capable of automatically dropping a product without ejection and mold opening, which comprises a mold base and a mold core component, the mold core component is mounted at the top of the mold base, an insert is arranged on the side edge of the mold core component, a limiting component is inserted into the insert, and the limiting component is mounted on the mold base. And a female die assembly is mounted at the top of the mold core assembly. According to the efficient injection mold capable of automatically falling off the product without ejection and mold opening, by arranging the auxiliary valve block and the middle valve block, when the mold core assembly and the female mold assembly are subjected to structural mold splitting, the effects that the arrangement of an ejection structure is not needed and the mold opening is not needed can be achieved by utilizing the structural characteristics of the mold core assembly and the female mold assembly through moving dislocation and mold splitting adjustment; according to the injection mold, the red copper can be demolded while the mold is opened, so that the whole injection mold has enough structural flexibility and convenience, and in addition, due to the use of the limiting assembly, unnecessary excessive structural separation in the separation process of the mold core assembly and the female mold assembly is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a high-efficiency injection mold for automatically shedding products without the need for ejection or mold opening. Background Art

[0002] An injection mold is a type of mold used for injection molding. Molten plastic is injected into the mold under high pressure and then cooled to form the desired product shape and size. Injection molds play a vital role in industrial production. Plastic particles are heated and melted, then injected into the mold cavity. After cooling and solidification, the desired plastic product is removed from the mold. This mold typically consists of a movable mold and a fixed mold. The movable mold is mounted on the moving platen of the injection molding machine, while the fixed mold is mounted on the fixed platen. During the injection molding process, the movable and fixed molds close together to form the gating system and the mold cavity. During injection, the movable and fixed molds separate to facilitate product removal.

[0003] Conventional injection molds are generally equipped with an ejector structure to eject the injection-molded part from the mold cavity to achieve demolding. However, this structure makes the mold structure itself relatively complex and leads to an increase in the production cost of the mold. At the same time, the use of the ejector structure may have a certain impact on the surface of the injection-molded part due to the force generated by the operation of the two structures.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an efficient injection mold that does not require ejection to open the mold and automatically removes the product is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a high-efficiency injection mold that can automatically release products without ejecting the mold, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a high-efficiency injection mold that does not require ejection to open the mold and automatically removes the product, comprising a mold base and a core assembly, a core assembly being installed on the top of the mold base, and inserts being provided on the sides of the core assembly, and a limiting assembly being inserted into the interior of the insert, a die assembly being installed on the top of the core assembly, and a molded part being injection-molded between the die assembly and the core assembly, and fixing piles being vertically inserted into the interiors of the mold base and the core assembly.

[0007] Furthermore, the core assembly includes a punch seat, a core body, an auxiliary valve block and an intermediate valve block. The core body is vertically installed symmetrically inside the punch seat, and an auxiliary valve block is provided on the side of the core body away from the vertical central axis of the punch seat, and an intermediate valve block is provided on the side of the core body close to the vertical central axis of the punch seat.

[0008] Furthermore, the auxiliary valve blocks are symmetrically arranged on both sides of the inner portion of the punch seat, and the sides of the core body and the middle valve block are fitted together.

[0009] Furthermore, the limiting assembly includes a connecting block, a fixing bolt and a limiting bolt. The fixing bolts are threaded through both sides of the connecting block, and a limiting bolt is provided on one side of the connecting block close to the vertical central axis of the core assembly.

[0010] Furthermore, the limiting bolt obliquely penetrates the middle of the insert, and the upper end of the limiting bolt fits in with the side of the die assembly, and the fixing bolt is threadedly connected to the insert.

[0011] Furthermore, the die assembly includes an upper core, an upper limit bolt and an injection port. Both ends of the upper core are vertically connected with the upper limit bolts, and the injection port is vertically opened in the middle of the upper core.

[0012] Furthermore, the upper core and the core assembly form a complete injection molding wall, and the injection port and the surface of the core assembly are communicated with each other.

[0013] Furthermore, the fixing pile is vertically inserted into the interior of the core body, and the middle valve block is movably fitted to the side surface of the core body.

[0014] The utility model provides a high-efficiency injection mold that automatically releases products without ejection and mold opening, and has the following beneficial effects:

[0015] 1. In the present invention, the entire injection mold cavity is spliced ​​together by the combination of the upper core, the core body, the auxiliary valve block and the intermediate valve block, so that the joints between them form a complete injection cavity. After the injection molded part is cooled and formed, under the structural operation of the mold opener and closeer, the core assembly will be structurally separated from the die assembly in the vertical direction. At the same time, the auxiliary valve block and the intermediate valve block will operate synchronously to drive and pull the molded part between the upper and lower separated upper core and the punch seat, so that it is structurally separated from the surface of the core body. By using the above structure, the ejector structure generally used for demoulding in the entire mold can be minimized to the greatest extent. While reducing the cost of mold production, it can also simplify the structural setting of the mold itself. On the one hand, it can ensure the flexibility of mold use, simplify the demoulding operation and structure while realizing parting, and improve work efficiency. On the other hand, it can improve production costs, reduce operating expenses and ensure product quality.

[0016] 2. The utility model provides a limit assembly inside the inserts on both sides of the core assembly. When the core assembly and the die assembly are structurally separated under the structural operation of the mold opener, the fixing bolts connecting the fixed connecting block and the insert are horizontally screwed in advance and separated. Then, as the structure of the die assembly moves horizontally, the limit bolts on both sides will fit into the side edges of the upper core and slide relative to each other. When the upper core itself moves to a certain extent, the insert connected to the upper core will also move synchronously. At the same time, since the limit bolt obliquely penetrates the interior of the insert, it is ultimately limited by the structural positioning of the bottom end of the limit bolt, so that the movement of the core assembly and the insert is structurally limited, and excessive separation between the core assembly and the die assembly is avoided, thereby affecting the efficiency of the next round of injection molding operations, so as to facilitate subsequent mold closing operations. The fixed piles ensure the stability and firmness of the structural docking between the mold base and the core assembly to the greatest extent, and avoid structural dislocation affecting the injection molding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main body axial side structure of a high-efficiency injection mold of the utility model that automatically releases products without ejection;

[0018] Figure 2 This is a schematic diagram of the main body axial side structure of a high-efficiency injection mold of the utility model that automatically releases products without ejection;

[0019] Figure 3 This is a schematic diagram of the side sectional planar structure of a high-efficiency injection mold of the utility model that automatically releases products without ejection;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the internal part of the main body of a high-efficiency injection mold of the utility model that automatically releases products without ejecting the mold.

[0021] In the figure: 1. Mold base; 2. Core assembly; 201. Punch seat; 202. Core body; 203. Auxiliary valve block; 204. Intermediate valve block; 3. Insert; 4. Limit assembly; 401. Connecting block; 402. Fixing bolt; 403. Limiting bolt; 5. Die assembly; 501. Upper core; 502. Upper limit bolt; 503. Injection port; 6. Molded part; 7. Fixing pile. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] like Figures 1 to 4As shown, a high-efficiency injection mold for automatically falling off products without ejecting the mold, including a mold base 1 and a core assembly 2, the core assembly 2 is installed on the top of the mold base 1, and an insert 3 is provided on the side of the core assembly 2, and a limiting assembly 4 is inserted inside the insert 3, a die assembly 5 is installed on the top of the core assembly 2, and a molded part 6 is injection-molded between the die assembly 5 and the core assembly 2, and fixed piles 7 are vertically inserted inside the mold base 1 and the core assembly 2, the core assembly 2 includes a punch seat 201, a core body 202, an auxiliary valve block 203 and an intermediate valve block 204, the core body 202 is vertically installed in the punch seat 201 in a left-right symmetrical manner, and the core body 202 is away from the punch seat 201. An auxiliary valve block 203 is provided on one side of the vertical central axis, and an intermediate valve block 204 is provided on one side of the vertical central axis of the punch seat 201 close to the core body 202. The auxiliary valve block 203 is symmetrically arranged on both sides of the inside of the punch seat 201, and the side edges of the core body 202 and the intermediate valve block 204 fit together. After the injection molded part is cooled and formed, under the structural operation of the mold opener, the core assembly 2 will be structurally separated from the die assembly 5 in the vertical direction. At the same time, the auxiliary valve block 203 and the intermediate valve block 204 will operate synchronously to drive and pull the molded part 6 between the upper core 501 and the punch seat 201 separated from each other, so that it is structurally separated from the surface of the core body 202.

[0024] like Figures 1 to 4As shown, the limiting assembly 4 includes a connecting block 401, a fixing bolt 402 and a limiting bolt 403. The fixing bolts 402 are threaded through the two sides of the connecting block 401, and a limiting bolt 403 is provided on the side of the connecting block 401 close to the vertical central axis of the core assembly 2. The limiting bolt 403 obliquely penetrates the middle of the insert 3, and the upper end of the limiting bolt 403 is in contact with the side of the die assembly 5, and the fixing bolt 402 is threadedly connected to the insert 3. The die assembly 5 includes an upper core 501, an upper limit bolt 502 and an injection port 503. The two ends of the upper core 501 are vertically connected with the upper limit bolt 502, and the middle of the upper core 501 is vertically provided with an injection port 503. The upper core 501 and the core assembly 2 form a complete injection wall, and the injection port 503 is connected to the core assembly 2. The surfaces are interconnected, the fixed pile 7 is vertically inserted into the interior of the core body 202, and the intermediate valve block 204 is movably fitted with the side surface of the core body 202. When the core assembly 2 and the die assembly 5 are structurally separated under the structural operation of the mold's opener and closeer, the fixing bolt 402 connecting the fixed connecting block 401 and the insert 3 is horizontally screwed in advance, and the two are separated. Then, as the structure of the die assembly 5 moves horizontally, the limiting bolts 403 on both sides will fit the side of the upper core 501 and slide relative to each other. When the upper core 501 itself moves to a certain extent, the insert 3 connected to the upper core 501 will also move synchronously, so that it is finally limited by the structural positioning at the bottom end of the limiting bolt 403 to avoid excessive separation between the core assembly 2 and the die assembly 5.

[0025] In summary, if Figures 1 to 4 As shown, the high-efficiency injection mold that does not require ejection and automatically releases the product is used. When in use, the molten material used for injection molding is first injected into the injection cavity composed of the core assembly 2 and the inner part of the die assembly 5 on the top of the mold base 1 through the injection port 503 vertically opened in the middle of the upper core 501. After the molded part 6 is cooled and solidified, the mold opener and closer connecting the core assembly 2 and the die assembly 5 can be used to separate the two structures.

[0026] At this time, as the female mold assembly 5 moves, the molded part 6 will be taken away from the surface of the core body 202. At the same time, the auxiliary valve block 203 and the intermediate valve block 204 in the punch seat 201 will also perform the valve block demolding operation synchronously, and separate the molded part 6 and the upper core 501 from each other, thereby achieving rapid mold parting and automatic demolding.

[0027] During this process, the fixed pile 7 will ensure the firmness of the connection between the entire core assembly 2 and the mold base 1, and the limiting assembly 4 inside the insert 3 will structurally separate the connecting block 401 from the insert 3 by horizontally screwing the fixing bolt 402 connecting the fixed connecting block 401 and the insert 3 in advance, and avoid structural interference. Then, during the structural translation of the die assembly 5, as the upper core 501 itself moves to a certain extent, the insert 3 connected to the upper core 501 will also move synchronously, so that it is ultimately limited by the structural limitation of the top of the limiting bolt 403, so that the die assembly 5 maintains a suitable separation distance.

[0028] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A high-efficiency injection mold that automatically releases products without ejection, comprising a mold base (1) and a core assembly (2), characterized in that: A core assembly (2) is installed on the top of the mold base (1), and an insert (3) is provided on the side of the core assembly (2), and a limiting assembly (4) is inserted into the insert (3). A die assembly (5) is installed on the top of the core assembly (2), and a molded part (6) is injection-molded between the die assembly (5) and the core assembly (2), and fixing piles (7) are vertically inserted into the interior of the mold base (1) and the core assembly (2).

2. The high-efficiency injection mold for automatically dropping products without ejection according to claim 1, characterized in that: The core assembly (2) comprises a punch seat (201), a core body (202), an auxiliary valve block (203) and an intermediate valve block (204); the core body (202) is vertically installed in a left-right symmetrical manner inside the punch seat (201); the auxiliary valve block (203) is provided on the side of the core body (202) away from the vertical center axis of the punch seat (201); and the intermediate valve block (204) is provided on the side of the core body (202) close to the vertical center axis of the punch seat (201).

3. The high-efficiency injection mold for automatically dropping products without ejection according to claim 2, characterized in that: The auxiliary valve blocks (203) are symmetrically arranged on both sides of the inner portion of the punch seat (201), and the sides of the core body (202) and the middle valve block (204) are fitted to each other.

4. The high-efficiency injection mold for automatically dropping products without ejection according to claim 1, characterized in that: The limiting assembly (4) comprises a connecting block (401), a fixing bolt (402) and a limiting bolt (403); the fixing bolts (402) are threadedly passed through both sides of the connecting block (401); and the limiting bolt (403) is provided on a side of the connecting block (401) close to the vertical central axis of the core assembly (2).

5. The high-efficiency injection mold for automatically dropping products without ejection according to claim 4, characterized in that: The limiting bolt (403) obliquely penetrates the middle of the insert (3), and the upper end of the limiting bolt (403) fits with the side of the die assembly (5), and the fixing bolt (402) is threadedly connected to the insert (3).

6. The high-efficiency injection mold for automatically dropping products without ejection according to claim 1, characterized in that: The die assembly (5) comprises an upper core (501), an upper limit bolt (502) and an injection port (503); the upper limit bolts (502) are vertically connected to both ends of the upper core (501), and the injection port (503) is vertically opened in the middle of the upper core (501).

7. The high-efficiency injection mold for automatically dropping products without ejection according to claim 6, characterized in that: The upper core (501) and the core assembly (2) form a complete injection molding wall, and the injection port (503) and the surface of the core assembly (2) are communicated with each other.

8. The high-efficiency injection mold for automatically dropping products without ejection according to claim 2, characterized in that: The fixing pile (7) is vertically inserted into the interior of the core body (202), and the middle valve block (204) is movably fitted to the side surface of the core body (202).

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