Automobile buckle injection mold

Abstract

The utility model discloses an automobile buckle injection mold, and belongs to the technical field of injection molds, and the automobile buckle injection mold is characterized by comprising an upper bottom plate and a lower bottom plate, supporting plates are arranged on the two sides of the top of the lower bottom plate, a lower mold base is arranged on the tops of the supporting plates, and an upper mold base is fixedly connected to the bottom of the upper bottom plate; hydraulic cylinders are arranged at the four corners of the outer wall of the bottom of the upper bottom plate correspondingly, and piston rods of the hydraulic cylinders are connected with the lower die base. The lower die base is of a hollow structure, an electric push rod is arranged on the inner wall of the bottom of the lower die base, a piston rod of the electric push rod is connected with a die core, a plurality of die cavities distributed at equal intervals are formed in the top of the die core, and an ejection mechanism is arranged at the top of the lower bottom plate and extends into the die cavities. The mold is easy to demold, and the production efficiency of the automobile buckle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and more specifically to an automobile buckle injection mold. Background Art

[0002] A mold is a tool that, under the action of external force, transforms a blank into a product of a specific shape and size. It is widely used in punching, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, as well as compression or injection molding of engineering plastics, rubber, ceramics and other products. The mold has a specific contour or inner cavity shape. The application of a contour shape with a cutting edge can separate the blank according to the contour shape, and the application of an inner cavity shape can give the blank a corresponding three-dimensional shape. The mold generally consists of a movable mold and a fixed mold. The two parts can be separated or combined, and the product can be taken out when separated. In the production process of automotive buckles, injection molds are required.

[0003] At present, a Chinese patent with announcement number CN220372047U discloses a buckle injection mold for automobiles, including a fixed block, a positioning groove is provided on the fixed block, the positioning groove is recessed downward to form a molding groove, and also includes a sliding block that slides longitudinally in the molding groove, the molding groove is set throughout the length of the fixed block, and the end of the sliding block is arc-shaped; it also includes an abutment block, the abutment block is provided with an arc groove, and the arc groove matches the arc of the end of the sliding block; the sheet metal panel is placed in the positioning groove, the positioning groove has a positioning effect, and then the sliding block is pushed downward, and as the sliding block moves, the sheet metal panel is stamped and formed.

[0004] In the prior art, similar to the above-mentioned buckle injection mold, after the injection molding is completed, the injection molded part needs to be manually pushed out, which makes demoulding difficult and affects the production efficiency of the automobile buckle. Therefore, there is room for improvement. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an automobile buckle injection mold, which has the advantages of simple demoulding and improved production efficiency of the automobile buckle.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile buckle injection mold, comprising an upper bottom plate and a lower bottom plate, support plates are arranged on both sides of the top of the lower bottom plate, a lower mold base is arranged on the top of the support plate, an upper mold base is fixedly connected to the bottom of the upper bottom plate, hydraulic cylinders are arranged at the four corners of the outer wall of the bottom of the upper bottom plate, and the piston rod of the hydraulic cylinder is connected to the lower mold base;

[0007] The lower die base is a hollow structure, an electric push rod is arranged on the inner wall of the bottom of the lower die base, a piston rod of the electric push rod is connected to a die core, a plurality of equidistantly distributed die cavities are opened on the top of the die core, an ejection mechanism is arranged on the top of the lower base plate, and the ejection mechanism extends into the die cavity;

[0008] A mounting hole is provided at the top of the upper base plate, an injection tube is inserted into the inner wall of the mounting hole, and a plurality of branch tubes are provided at the bottom of the injection tube, and the plurality of branch tubes extend into the mold cavity.

[0009] By adopting the above technical scheme, when in use, the injection liquid is added into the mold cavity from the branch pipe by using the injection tube. After the injection liquid is cooled and formed in the mold cavity, the piston rod of the hydraulic cylinder is controlled to extend, the upper mold base and the lower mold base are separated, and the upper surface of the injection molded part is exposed. The piston rod of the electric push rod is controlled to shorten, the mold core moves downward, and the ejection mechanism ejects the injection molded part from the mold cavity to complete demolding. The demolding is simple, and the production efficiency of the automobile buckle is improved.

[0010] In a preferred embodiment, the ejection mechanism includes a main ejector rod, and the top of the main ejector rod is flush with the bottom of the mold cavity.

[0011] By adopting the above technical solution and setting the main ejector pin, the injection molded part can be easily ejected from the middle of the mold cavity, thereby improving the ejection efficiency of the injection molded part.

[0012] In a preferred embodiment: auxiliary ejector rods are arranged on the outer walls around the main ejector rod, and the tops of the four auxiliary ejector rods are flush with the four corners of the bottom of the mold cavity.

[0013] By adopting the above technical solution and setting the auxiliary ejector rod, the injection molded part can be supported from the four bottom corners of the injection molded part when ejecting the injection molded part, thereby improving the ejection stability of the injection molded part.

[0014] In a preferred embodiment: a limit plate is disposed on the inner wall of the lower die base, a plurality of limit holes equidistantly distributed are opened on the top of the limit plate, and the main ejector rod and the auxiliary ejector rod are both located in the limit holes.

[0015] By adopting the above technical solution and setting the limiting holes, the main push rod and the auxiliary push rod can be easily limited to avoid deviation of the main push rod and the auxiliary push rod.

[0016] In a preferred embodiment: a sealing gasket is provided on the top of the mold core.

[0017] By adopting the above technical solution and setting the sealing gasket, the gap between the mold core and the upper mold base can be easily sealed to avoid leakage of the injection liquid during injection molding.

[0018] In a preferred embodiment: the sealing gasket is made of silicone.

[0019] By adopting the above technical solution, the sealing gasket made of silicone material is soft in texture and can be easily deformed under pressure to fill the gap, thereby improving the sealing effect of the mold.

[0020] In a preferred embodiment: buffer rods are provided on both sides of the top of the lower base plate, buffer springs are sleeved on the outer walls of the buffer rods, and the tops of the buffer rods are connected to the lower die base.

[0021] By adopting the above technical solution, when the hydraulic cylinder controls the upper die base and the lower die base to close the mold, the buffer spring has a good buffering effect, thereby increasing the service life of the mold.

[0022] Compared with the prior art, this application has the following beneficial effects:

[0023] 1. When in use, use the injection pipe to add the injection liquid from the branch pipe into the mold cavity. After the injection liquid is cooled and formed in the mold cavity, control the piston rod of the hydraulic cylinder to extend, the upper mold base and the lower mold base are separated, and the upper surface of the injection molded part is exposed. Control the piston rod of the electric push rod to shorten, the mold core moves downward, and the ejection mechanism ejects the injection molded part from the mold cavity to complete demoulding. The demoulding is simple, which improves the production efficiency of automobile buckles;

[0024] 2. The main ejector can easily eject the injection molded part from the middle of the mold cavity, which improves the ejection efficiency of the injection molded part; the auxiliary ejector can easily support the injection molded part from the four corners of the bottom of the injection molded part when ejecting the injection molded part, which improves the ejection stability of the injection molded part;

[0025] 3. The sealing gasket can conveniently seal the gap between the mold core and the upper mold base to avoid leakage of the injection liquid during injection molding; when the hydraulic cylinder controls the upper mold base and the lower mold base to close the mold, the buffer spring has a good buffering effect and improves the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the three-dimensional structure of this embodiment;

[0027] Figure 2 This is a schematic structural diagram of the embodiment highlighting the mold core;

[0028] Figure 3 It is a structural schematic diagram highlighting the main push rod and the auxiliary push rod of this embodiment.

[0029] Explanation of the accompanying reference numerals: 1. upper base plate; 2. lower base plate; 3. support plate; 4. lower mold base; 5. upper mold base; 6. hydraulic cylinder; 7. electric push rod; 8. mold core; 9. mold cavity; 10. injection tube; 11. branch tube; 12. main ejector rod; 13. auxiliary ejector rod; 14. limit plate; 15. sealing gasket; 16. buffer rod; 17. buffer spring. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure.

[0031] In the description of the present disclosure, it should be understood that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the disclosed product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0032] An automotive buckle injection mold, such as Figure 1-3 As shown, it includes an upper base plate 1 and a lower base plate 2, support plates 3 are arranged on both sides of the top of the lower base plate 2, a lower mold base 4 is arranged on the top of the support plate 3, the bottom of the upper base plate 1 is fixedly connected to an upper mold base 5, hydraulic cylinders 6 are arranged at the four corners of the outer wall of the bottom of the upper base plate 1, and the piston rod of the hydraulic cylinder 6 is connected to the lower mold base 4; wherein, a mounting hole is opened on the top of the upper base plate 1, an injection tube 10 is inserted into the inner wall of the mounting hole, and a plurality of branch tubes 11 are arranged at the bottom of the injection tube 10, and the plurality of branch tubes 11 extend into the mold cavity 9.

[0033] In one specific embodiment, the lower die base 4 is a hollow structure, an electric push rod 7 is installed on the bottom inner wall of the lower die base 4, the piston rod of the electric push rod 7 is connected to the mold core 8, a plurality of mold cavities 9 distributed at equal distances are opened on the top of the mold core 8, and an ejection mechanism is provided on the top of the lower base plate 2, and the ejection mechanism extends into the mold cavity 9;

[0034] On the basis of the above embodiment, the ejection mechanism includes a main ejector rod 12, the top of the main ejector rod 12 is flush with the bottom of the mold cavity 9, and the main ejector rod 12 can be used to easily eject the injection molded part from the middle of the mold cavity 9, thereby improving the ejection efficiency of the injection molded part; auxiliary ejector rods 13 are arranged on the outer walls around the main ejector rod 12, and the tops of the four auxiliary ejector rods 13 are flush with the four corners of the bottom of the mold cavity 9. The auxiliary ejector rods 13 can be used to easily support the injection molded part from the four corners of the bottom of the injection molded part when ejecting the injection molded part, thereby improving the ejection stability of the injection molded part; a limiting plate 14 is arranged on the inner wall of the lower mold base 4, and a plurality of limiting holes equidistantly distributed are opened on the top of the limiting plate 14, and the main ejector rod 12 and the auxiliary ejector rod 13 are both located in the limiting holes, and the limiting holes can be used to conveniently limit the main ejector rod 12 and the auxiliary ejector rod 13 to avoid deviation of the main ejector rod 12 and the auxiliary ejector rod 13.

[0035] Furthermore, a sealing gasket 15 is provided on the top of the mold core 8, and the sealing gasket 15 can conveniently seal the gap between the mold core 8 and the upper mold base 5 to avoid leakage of the injection liquid during injection molding; the sealing gasket 15 is made of silicone material, and the silicone sealing gasket 15 has a soft texture and can be easily deformed under pressure to fill the gap, thereby improving the sealing effect of the mold.

[0036] It is worth mentioning that buffer rods 16 are provided on both sides of the top of the lower base plate 2, and buffer springs 17 are sleeved on the outer walls of the buffer rods 16. The top of the buffer rods 16 is connected to the lower mold base 4. When the hydraulic cylinder 6 controls the upper mold base 5 and the lower mold base 4 to close the mold, the buffer springs 17 have a good buffering effect, thereby improving the service life of the mold.

[0037] The working process and beneficial effects of the utility model are as follows:

[0038] When in use, the injection liquid is added into the mold cavity 9 from the branch pipe 11 by means of the injection tube 10. After the injection liquid is cooled and formed in the mold cavity 9, the piston rod of the hydraulic cylinder 6 is controlled to extend, the upper mold base 5 and the lower mold base 4 are separated, and the upper surface of the injection molded part is exposed. The piston rod of the electric push rod 7 is controlled to shorten, and the mold core 8 moves downward. The ejection mechanism ejects the injection molded part from the mold cavity 9 to complete demoulding. The demoulding is simple, and the production efficiency of the automobile buckle is improved.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile buckle injection mold, comprising an upper base plate (1) and a lower base plate (2), wherein support plates (3) are arranged on both sides of the top of the lower base plate (2), a lower mold base (4) is arranged on the top of the support plate (3), and an upper mold base (5) is fixedly connected to the bottom of the upper base plate (1), characterized in that: Hydraulic cylinders (6) are provided at the four corners of the bottom outer wall of the upper base plate (1), and the piston rod of the hydraulic cylinder (6) is connected to the lower die seat (4); The lower die base (4) is a hollow structure, the bottom inner wall of the lower die base (4) is provided with an electric push rod (7), the piston rod of the electric push rod (7) is connected to a die core (8), the top of the die core (8) is provided with a plurality of equidistantly distributed die cavities (9), the top of the lower base plate (2) is provided with an ejection mechanism, and the ejection mechanism extends into the die cavity (9); A mounting hole is provided at the top of the upper base plate (1), an injection tube (10) is inserted into the inner wall of the mounting hole, a plurality of branch tubes (11) are provided at the bottom of the injection tube (10), and the plurality of branch tubes (11) extend into the mold cavity (9).

2. The automotive buckle injection mold according to claim 1, characterized in that: The ejection mechanism comprises a main ejector rod (12), the top of which is flush with the bottom of the mold cavity (9).

3. The automotive buckle injection mold according to claim 2, characterized in that: Sub-elevator rods (13) are arranged on the outer walls around the main ejector rod (12), and the tops of the four sub-elevator rods (13) are flush with the four corners of the bottom of the mold cavity (9).

4. The automotive buckle injection mold according to claim 3, characterized in that: The inner wall of the lower die base (4) is provided with a limit plate (14), the top of the limit plate (14) is provided with a plurality of limit holes distributed at equal distances, and the main ejector rod (12) and the auxiliary ejector rod (13) are both located in the limit holes.

5. The automotive buckle injection mold according to claim 1, characterized in that: A sealing gasket (15) is provided on the top of the mold core (8).

6. The automotive buckle injection mold according to claim 5, characterized in that: The sealing pad (15) is made of silicone material.

7. An automotive buckle injection mold according to any one of claims 1 to 6, characterized in that: Buffer rods (16) are provided on both sides of the top of the lower base plate (2), and a buffer spring (17) is sleeved on the outer wall of the buffer rod (16). The top of the buffer rod (16) is connected to the lower die seat (4).

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