Assembly injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a combined part injection mold which comprises a top plate, an upper mold mechanism composed of the top plate and a second injection molding assembly at the bottom of the top plate, and the second injection molding assembly comprises an upper mold cover, a second inner mold sleeve and a third inner mold sleeve. The upper die cover, the second inner die sleeve and the third inner die sleeve are distributed from top to bottom; the mold comprises a base, the base is used for bearing a lower mold mechanism, the lower mold mechanism comprises a first injection molding assembly, the first injection molding assembly comprises a first inner mold sleeve, two sliding half mold bases are arranged on the top face of the first inner mold sleeve, and half mold grooves are formed in the butt joint sides of the two sliding half mold bases. Injection molding can be carried out at the upper joint and the lower joint of the product piece, so that the upper part, the middle part and the lower part of the product piece form a finished product, combined piece connection is achieved through injection molding, product assembly is omitted, and the product quality can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a combined injection mold. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. Its advantages include high production speed, high efficiency, automated operation, a wide variety of designs and colors, shapes ranging from simple to complex, and sizes ranging from large to small. Furthermore, it produces precise product dimensions, is easily updated, and can produce complex shapes. Injection molding is suitable for mass production and the molding of complex products.

[0003] Existing injection mold designs can often only meet the molding requirements of a single component and cannot assemble multiple components into an integrated product through injection molding. Therefore, there is an urgent need to provide a composite injection mold to solve the above technical problems. Utility Model Content

[0004] The purpose of the present invention is to provide a composite injection mold to solve the problem that the existing injection mold design mentioned in the above background technology can only meet the molding of a single component and cannot assemble multiple components into an integrated product through injection molding.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A composite injection mold, comprising:

[0007] A top plate, the top plate and a second injection molding assembly at the bottom thereof constitute an upper mold mechanism, the second injection molding assembly includes an upper mold cover, a second inner mold sleeve, and a third inner mold sleeve, the upper mold cover, the second inner mold sleeve, and the third inner mold sleeve are arranged from top to bottom;

[0008] The base is used to support the lower mold mechanism, and the injection material flows into the upper mold mechanism and the mold cavity of the upper mold mechanism through the injection runner. The lower mold mechanism includes a first injection molding component, and the first injection molding component includes a first inner mold sleeve. The top surface of the first inner mold sleeve is provided with two sliding half-mold seats, and the docking sides of the two sliding half-mold seats are provided with half-mold grooves.

[0009] As another preferred solution of the present invention, the second injection molding component is floatingly connected to the top plate.

[0010] As another preferred solution of the present invention, an upper heating element is provided in the top plate, and a lower heating element is provided in the lower preheating plate.

[0011] As another preferred solution of the present invention, a lower cooling piece is provided in the first injection molding component, and an upper cooling piece is provided in the second injection molding component.

[0012] As another preferred solution of the present invention, a connecting block is provided on the outer side of the sliding half mold base.

[0013] As another preferred embodiment of the present invention, the second injection molding component includes a mold splitting rod, the second inner mold sleeve passes through the through opening provided on the connecting block, and a mold closing block is provided on the outer side of the mold splitting rod.

[0014] As another preferred solution of the present invention, a clamping piece is installed at the bottom of the top plate, and the clamping piece passes through the upper mold cover and extends into the second inner mold sleeve.

[0015] As another preferred solution of the present invention, a stop block is provided on the base, and a limiting plug block is provided above the stop block.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model can perform injection molding at the upper and lower connection points of the product part, so that the upper, middle and lower parts of the product part form a completed product. The parts are connected by injection molding, which saves product assembly and improves product quality.

[0018] The utility model has an ingenious structure and can perform high-precision positioning, thereby ensuring the quality of the product after molding and improving the product qualification rate.

[0019] The utility model is convenient for demoulding after injection molding, and the whole process is automatically realized as the upper and lower molds are separated, and the structure is sophisticated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall three-dimensional schematic diagram of the utility model.

[0021] Figure 2 This is a three-dimensional schematic diagram of the utility model with the top plate removed.

[0022] Figure 3 It is a partial three-dimensional schematic diagram of the utility model.

[0023] Figure 4 This is a schematic structural diagram of the lower preheating plate and the first injection molding component in the utility model.

[0024] Figure 5 This is a structural diagram of the lower preheating plate and the first inner mold sleeve in the utility model.

[0025] Figure 6 This is a schematic diagram of the top plate and clamping member structure of the utility model.

[0026] In the figure: 100, product part; 1, top plate; 11, upper heating element; 12, injection port; 2, base; 3, lower preheating plate; 31, lower heating element; 4, first injection molding component; 41, first inner mold sleeve; 42, lower cooling element; 43, sliding half mold base; 44, connecting block; 5, second injection molding component; 51, upper mold cover; 52, clamping part; 53, second inner mold sleeve; 54, third inner mold sleeve; 55, parting rod; 56, closing mold block; 57, upper cooling element; 6, stop block; 7, limit block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-6 , the utility model provides the following embodiments:

[0029] A composite injection mold includes: a top plate 1, a base 2, a lower preheating plate 3, a first injection molding component 4 and a second injection molding component 5. The first injection molding component 4 and the second injection molding component 5 are both provided with a mold cavity, and the upper and lower parts of a product part 100 are injection molded, so that the product part 100 originally composed of three parts is combined into one, realizing injection molding composite parts, eliminating assembly and improving quality.

[0030] The top plate 1 and the second injection molding assembly 5 at its base constitute the upper mold structure. The second injection molding assembly 5 includes an upper mold cover 51, a second inner mold sleeve 53, and a third inner mold sleeve 54. These three components are arranged from top to bottom, allowing the upper mold to be lifted as a whole for easier part removal. In this embodiment, the upper mold cover 51 serves as the top cover, the cavity of the second inner mold sleeve 53 accommodates the top structure of the product 100, and the cavity of the third inner mold sleeve 54 serves as the injection cavity.

[0031] The base 2 is used to support the lower mold mechanism. The injection material flows into the upper mold mechanism and the mold cavity of the upper mold mechanism through the injection runner. The top of the injection runner is connected to the injection port 12. The lower mold mechanism includes a first injection molding assembly 4, which includes a first inner mold sleeve 41. The top surface of the first inner mold sleeve 41 is provided with two sliding half-mold bases 43. The two sliding half-mold bases 43 are provided with half-mold grooves on the side where they meet. The cavity of the first inner mold sleeve 41 and the mold cavity formed by the two half-mold grooves can both serve as the injection cavity.

[0032] As a further improvement of the present invention, the second injection molding component 5 is floatingly connected to the top plate 1. Specifically, the second injection molding component 5 is connected to the top plate 1 through a stud. The threaded end of the stud is connected to the top plate 1, and the other end is slidingly connected to the second injection molding component 5. That is, after the top plate 1 rises one end distance, the top plate 1 that continues to rise can drive the second injection molding component 5 to rise together; during the descending process, after the second injection molding component 5 is in contact with the first injection molding component 4, the top plate 1 can still descend until the top plate 1 is in contact with the second injection molding component 5.

[0033] As a further improvement to the present invention, an upper heating element 11 is provided in the top plate 1, and a lower heating element 31 is provided in the lower preheating plate 3. Specifically, referring to the accompanying drawings, the upper heating element 11 and the lower heating element 31 are primarily used for heating, which can heat the components of the product 100 and also heat and maintain the injection molding material in the flow channel to ensure the injection molding effect.

[0034] As a further improvement to the present invention, a lower cooling element 42 is provided in the first injection molding assembly 4, and an upper cooling element 57 is provided in the second injection molding assembly 5. In conjunction with the above description of the first and second injection molding assemblies 4, 5, the injection molding material is molded in the first and second injection molding assemblies 4, 5. The design of the lower cooling element 42 and the upper cooling element 57 can shorten the molding time. In this embodiment, the lower cooling element 42 is designed around the cavity of the first inner mold sleeve 41, and the upper cooling element 57 is designed around the cavity of the third inner mold sleeve 54.

[0035] As a further improvement to the present invention, a connecting block 44 is provided on the outer side of the sliding half-mold base 43, and the connecting block 44 is engaged and connected with the sliding half-mold base 43. The connecting block 44 is located in the slide groove at the top of the first injection molding component 4. The movable connecting block 44 can pull the sliding half-mold base 43 outward to realize the separation of the sliding half-mold base 43.

[0036] As a further improvement to the present invention, the second injection molding assembly 5 includes a mold-parting pin 55. The second inner mold sleeve 53 extends through an opening in the connecting block 44. A mold-closing block 56 is positioned outside the mold-parting pin 55. The bottom of the mold-parting pin 55 is inclined. When the mold-parting pin 55 is raised, it moves the connecting block 44 outward, separating the sliding mold base halves 43. When the second injection molding assembly 5 is lowered, the mold-closing block 56 compresses the connecting block 44, resetting it and closing the sliding mold base halves 43. The contact surface between the mold-closing block 56 and the connecting block 44 is an inclined surface.

[0037] As a further improvement to the present invention, a clamping member 52 is installed at the bottom of the top plate 1. The clamping member 52 passes through the upper mold cover 51 and extends into the second inner mold sleeve 53. Figure 5Specifically, in this embodiment, the clamping member 52 includes a rod and a claw. The claw is slidably installed on the inner side of the rod. The slide groove is designed to be oblique. When the rod rises, the claw will retreat outward. Combined with the above-mentioned floating connection, the clamping member 52 can be used to clamp and fix the head end structure of the product part 100.

[0038] As a further improvement to the present invention, a stop block 6 is provided on the base 2, and a limit block 7 is provided above the stop block 6. The bottom member of the product 100 is a plurality of rod-shaped objects, and the limit blocks 7 are provided with limit holes. The bottom of the rod-shaped objects is located on the top surface of the limit blocks 7, thereby achieving accurate positioning.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite injection mold, characterized in that: include: A top plate (1), the top plate (1) and a second injection molding assembly (5) at the bottom thereof constitute an upper mold mechanism, the second injection molding assembly (5) comprises an upper mold cover (51), a second inner mold sleeve (53) and a third inner mold sleeve (54), the upper mold cover (51), the second inner mold sleeve (53) and the third inner mold sleeve (54) being arranged from top to bottom; A base (2) is provided, wherein the base (2) is used to support a lower mold mechanism, and injection molding material flows into the upper mold mechanism and the mold cavity of the upper mold mechanism through an injection flow channel, the lower mold mechanism includes a first injection molding component (4), a lower preheating plate (3) is provided between the base (2) and the first injection molding component (4), the first injection molding component (4) includes a first inner mold sleeve (41), and the top surface of the first inner mold sleeve (41) is provided with two sliding half mold seats (43), and the two sliding half mold seats (43) are provided with half mold grooves on the docking sides.

2. The combined injection mold according to claim 1, characterized in that: The second injection molding component (5) is floatingly connected to the top plate (1).

3. The combined injection mold according to claim 1, characterized in that: An upper heating element (11) is provided in the top plate (1), and a lower heating element (31) is provided in the lower preheating plate (3).

4. The combined injection mold according to claim 3, characterized in that: The first injection molding component (4) is provided with a lower cooling member (42), and the second injection molding component (5) is provided with an upper cooling member (57).

5. The combined injection mold according to claim 4, characterized in that: A connecting block (44) is provided on the outer side of the sliding half mold base (43).

6. The combined injection mold according to claim 5, characterized in that: The second injection molding component (5) includes a mold splitting rod (55), the second inner mold sleeve (53) passes through the opening opened on the connecting block (44), and a mold closing block (56) is provided on the outer side of the mold splitting rod (55).

7. The combined injection mold according to claim 1, characterized in that: A clamping member (52) is installed at the bottom of the top plate (1), and the clamping member (52) passes through the upper mold cover (51) and extends into the second inner mold sleeve (53).

8. The combined injection mold according to claim 1, characterized in that: A stop block (6) is provided on the base (2), and a limited position insert block (7) is provided above the stop block (6).

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