Automobile bumper injection mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an injection mold for an automobile bumper. The die comprises an upper die plate, a connecting block assembly is arranged below the upper die plate, an upper die base is arranged below the connecting block assembly, a runner assembly is arranged between the upper die base and the upper die plate, and a lower die base and a lower die plate are arranged below the upper die base. An upper mold core part below the upper mold base and a lower mold core part above the lower mold base are pressed to form a complete cavity, meanwhile, an ejector block is arranged in the upper portion of the lower mold base, a supporting column arranged above the lower mold plate is sleeved with an ejector plate, and an ejector column, a straight ejector rod and an inclined ejector rod are arranged above the ejector plate; according to the utility model, the ejection plate is arranged in the mold to push the ejection column, the straight ejection rod, the inclined ejection rod and the piece pushing block to be matched, so that a product piece can be directly ejected out from the interior of the mold after being subjected to injection molding, the situation of piece clamping during taking is prevented, the situation of deformation or edge rising of the product piece is avoided, and the rejection rate, the production cost and the labor capacity are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for an automobile bumper. Background Art

[0002] An injection mold is a tool for producing plastic products, and is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. During the injection molding of existing automobile bumpers, due to the complex shape of the automobile bumper and the many recessed parts in the internal structure, it is easy to get stuck in the mold cavity when the mold is opened, and manual extraction is required, resulting in damage to the edge of the product or deformation of the product, thereby requiring secondary reshaping, which increases labor and production costs and reduces work efficiency and output rate. Therefore, in response to the above problems, an automobile bumper injection mold is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide an automobile bumper injection mold in view of the above problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A car bumper injection mold comprises an upper template, an injection port assembly is provided in the middle of the upper template, and a connecting block assembly is provided around the lower part of the upper template, an upper mold base is provided below the connecting block assembly, and a runner assembly is provided between the upper middle part of the upper mold base and the lower part of the upper template, a lower mold base is provided in the lower middle part of the upper mold base, and the two sides of the lower part of the upper mold base are inserted in the two sides of the lower template, a push block is provided in the upper part of the lower mold base, and a cavity is formed between the upper mold base and the lower mold base, positioning columns are provided at the four corners between the upper mold base and the lower template, and a support column is provided at the middle part of the upper part of the lower template, and a top plate is provided outside the support column, and a top column, a straight ejector rod and an inclined ejector rod are respectively provided above the top of the top plate, and the top of the ejector column is inserted in the lower mold base, and the tops of the straight ejector rod and the inclined ejector rod are both inserted in the push block.

[0006] In the above-mentioned automobile bumper injection mold, the middle part of the upper template is inserted and fixedly connected to the injection port assembly, and the lower part of the upper template is fixedly connected to the connecting block assembly. At the same time, the lower part of the connecting block assembly is fixedly connected to the upper part of the upper mold base. The runner assembly is fixedly connected between the upper middle part of the upper mold base and the lower middle part of the upper template, and the bottom of the injection port assembly is inserted into the middle part of the runner assembly. At the same time, the injection column below the runner assembly is inserted into the upper mold base.

[0007] In the above-mentioned automobile bumper injection mold, an upper mold core portion is opened below the upper mold base, and the front and rear sides of the middle part of the lower part of the upper mold base are fixedly connected to the plug-in portion, and at the same time, both sides of the lower part of the upper mold base are fixedly connected to the stop block portion, and the bottom of the injection column below the runner assembly is inserted into the upper mold core portion.

[0008] In the above-mentioned automobile bumper injection mold, a lower mold core is provided above the lower mold base, and slot portions are provided on the front and rear sides of the upper middle part of the lower mold base. At the same time, a groove portion is provided at the bottom of the lower mold base. A sliding connection push piece block is inserted into the lower mold core, and the top of the push piece block is flush with the top of the lower mold core.

[0009] In the above-mentioned automobile bumper injection mold, the insert block portion is inserted into the sliding connection slot portion, and both sides of the lower mold base are clamped in the middle of the inner side of the block portion, and the lower mold core portion and the upper mold core portion are combined to form a molding cavity.

[0010] In the above-mentioned automobile bumper injection mold, the lower mold base is fixedly connected to the upper middle part of the lower mold plate, and retaining grooves are provided on both sides of the upper part of the lower mold plate. At the same time, sliding connection block parts are inserted into the retaining grooves, and the upper two sides of the lower mold plate are tightly fitted with the lower two sides of the upper mold base.

[0011] In the above-mentioned automobile bumper injection mold, the four corners of the lower template are fixedly connected with positioning columns, the four corners of the upper mold base are provided with positioning holes, and the sliding connection positioning columns are inserted into the positioning holes. A plurality of support columns are fixed in the middle of the upper part of the lower template, and the top of the support column is tightly fitted with the top of the groove part.

[0012] In the above-mentioned automobile bumper injection mold, the support column outer shell is provided with a sliding connection top plate, and the top plate is placed between the lower mold base and the lower mold plate. The top columns are fixedly connected at the four corners of the top plate, and the top columns are inserted into the sliding connection lower mold base. At the same time, the top of the top column is tightly fitted with the top of the upper mold core.

[0013] In the above-mentioned automobile bumper injection mold, a plurality of straight ejector rods and a plurality of inclined ejector rods are fixedly connected above the top plate, and the plurality of straight ejector rods and the plurality of inclined ejector rods are arranged in order.

[0014] In the above-mentioned automobile bumper injection mold, the upper parts of the straight ejector rod and the upper parts of the inclined ejector rod are both inserted into the sliding connection lower mold base, and the tops of the straight ejector rod and the inclined ejector rod are both inserted into the fixed connection push piece block.

[0015] Compared with the existing technology, the advantages of this utility model are:

[0016] The utility model is provided with a connecting block assembly under the upper template, and an upper mold base is provided under the connecting block assembly, and a runner assembly is provided between the upper mold base and the upper template, and a lower mold base and a lower template are respectively provided under the upper mold base, and the upper mold core part 4 under the upper mold base is pressed into a complete cavity above the lower mold base, and a pusher block is provided above the lower mold base, and a top plate is provided outside the support column provided above the lower template, and a pusher column, a straight pusher rod and an inclined pusher rod are respectively provided above the top plate. The top plate provided in the mold promotes the cooperation of the pusher column, the straight pusher rod, the inclined pusher rod and the pusher block. After the product is injection molded, the product can be directly ejected from the inside of the mold, which prevents the situation of getting stuck when taking it out, avoids the situation of product deformation or edge pick-up, and reduces the scrap rate, production cost and labor.

[0017] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 This is a schematic exploded top view of the entire utility model;

[0020] Figure 3 This is a schematic diagram of an overall explosion viewed from above of the present invention;

[0021] Figure 4 It is a schematic side sectional view of the entirety of the present invention;

[0022] Figure 5 It is a schematic diagram of the upper structure of the lower die base of the utility model.

[0023] In the figure: 1. Upper template; 2. Injection port assembly; 3. Connecting block assembly; 4. Upper mold base; 401. Upper mold core; 402. Insert block; 403. Stop block; 5. Lower mold base; 501. Lower mold core; 502. Slot; 503. Groove; 6. Lower template; 601. Stop groove; 7. Runner assembly; 8. Top plate; 9. Top column; 10. Straight ejector; 11. Inclined ejector; 12. Positioning column; 13. Support column; 14. Push block. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-5As shown, an automobile bumper injection mold comprises an upper template 1, an injection port assembly 2 is provided in the middle of the upper template 1, and a connecting block assembly 3 is provided around the lower part of the upper template 1, an upper mold base 4 is provided below the connecting block assembly 3, and a runner assembly 7 is provided between the upper middle part of the upper mold base 4 and the lower part of the upper template 1, a lower mold base 5 is provided in the middle part below the upper mold base 4, and the two sides below the upper mold base 4 are inserted in the two sides of the lower template 6, a push block 14 is provided above the lower mold base 5, and a cavity is formed between the upper mold base 4 and the lower mold base 5, positioning columns 12 are provided at the four corners between the upper mold base 4 and the lower template 6, and a support column 13 is provided in the middle part above the lower template 6, and a top plate 8 is provided on the outer sleeve of the support column 13, and a top column 9, a straight ejector rod 10 and an inclined ejector rod 11 are respectively provided above the top plate 8, and the top of the ejector column 9 is inserted in the lower mold base 5, and the tops of the straight ejector rod 10 and the inclined ejector rod 11 are both inserted in the push block 14.

[0026] The injection port assembly 2 is inserted and fixedly connected through the middle of the upper template 1, and the connecting block assembly 3 is fixedly connected to the lower part of the upper template 1. At the same time, the lower part of the connecting block assembly 3 is fixedly connected to the upper part of the upper mold base 4. The runner assembly 7 is fixedly connected between the upper middle part of the upper mold base 4 and the lower middle part of the upper template 1, and the bottom of the injection port assembly 2 is inserted into the middle of the runner assembly 7. At the same time, the injection column below the runner assembly 7 is inserted into the upper mold base 4.

[0027] Furthermore, an upper mold core portion 401 is opened below the upper mold base 4, and the front and rear sides of the middle part of the lower part of the upper mold base 4 are fixedly connected to the plug-in portion 402. At the same time, both sides of the lower part of the upper mold base 4 are fixedly connected to the stop block portion 403. The upper mold core portion 401 is inserted into the bottom of the injection column below the runner assembly 7.

[0028] A connecting block assembly 3 and an upper mold base 4 are provided below the upper mold plate 1, so that the three are connected into one, and an injection port assembly 2 is inserted into the upper mold plate 1. At the same time, a runner assembly 7 is provided between the upper mold plate 1 and the upper mold base 4. After the molding liquid is injected into the injection port assembly 2, the molding liquid will enter the runner assembly 7, and the runner assembly 7 will inject the molding liquid into the upper mold base 4.

[0029] Furthermore, a lower mold core portion 501 is provided above the lower mold base 5, and slot portions 502 are provided on the front and rear sides of the upper middle portion of the lower mold base 5. At the same time, a groove portion 503 is provided at the bottom of the lower mold base 5. A sliding connection push piece block 14 is inserted into the lower mold core portion 501, and the top of the push piece block 14 is flush with the top of the lower mold core portion 501.

[0030] Furthermore, the insert block portion 402 is inserted into the sliding connection slot portion 502 , and both sides of the lower mold base 5 are clamped in the middle of the inner side of the stop block portion 403 , and the lower mold core portion 501 and the upper mold core portion 401 are combined to form a forming cavity.

[0031] After the upper mold core part 401 provided in the bottom of the upper mold base 4 is pressed onto the lower mold core part 501 above the lower mold base 5, a cavity for the product part is formed between the two. At the same time, the pusher block 14 provided in the lower mold core part 501 will be placed under the product part, and can push the product part open when the mold is opened.

[0032] The lower mold base 5 is fixedly connected to the middle part of the upper part of the lower mold plate 6, and retaining grooves 601 are opened on both sides of the upper part of the lower mold plate 6. At the same time, the retaining grooves 601 are inserted into the sliding connection block parts 403, and the upper sides of the lower mold plate 6 are tightly fitted with the lower sides of the upper mold base 4.

[0033] Furthermore, the four corners of the lower template 6 are fixedly connected with positioning columns 12, the four corners of the upper mold base 4 are provided with positioning holes, and the positioning columns 12 are inserted into the positioning holes for sliding connection. A plurality of support columns 13 are fixed in the upper middle part of the lower template 6, and the top of the support column 13 is tightly fitted with the top of the groove portion 503.

[0034] The top plate 8 is arranged outside the support column 13 provided above the lower mold plate 6 , so that the top plate 8 can move up and down between the lower mold base 5 and the lower mold plate 6 by adhering to the support column 13 when subjected to external force.

[0035] Furthermore, the support column 13 is provided with a sliding connection top plate 8, and the top plate 8 is placed between the lower mold base 5 and the lower mold plate 6. The four corners of the top plate 8 are fixedly connected to the top column 9, and the top column 9 is inserted into the sliding connection lower mold base 5. At the same time, the top of the top column 9 is tightly fitted with the top of the upper mold core 401.

[0036] The top column 9 provided on the top plate 8 is pushed into the upper mold core part 401, and the top column 9 is placed in the hole of the product part, so it will not damage the product part. After the top plate 8 rises, the top column 9 can push open the upper mold base 4 and the structure above it.

[0037] Furthermore, a plurality of straight push rods 10 and a plurality of inclined push rods 11 are fixedly connected above the top plate 8 , and the plurality of straight push rods 10 and the plurality of inclined push rods 11 are arranged in order.

[0038] Furthermore, the upper portion of the straight ejector rod 10 and the upper portion of the inclined ejector rod 11 are both inserted into the sliding connection lower die base 5 , and the top portions of the straight ejector rod 10 and the inclined ejector rod 11 are both inserted into the fixed connection pusher block 14 .

[0039] The straight ejector rod 10 and the inclined ejector rod 11 respectively provided on the top plate 8 are inserted into the bottom of the push block 14 in the lower mold base 5. In this way, after the top plate 8 rises, the straight ejector rod 10 and the inclined ejector rod 11 will push the push block 14 upward, so that the push block 14 pushes the product part away.

[0040] Working principle:

[0041] A connecting block assembly 3 is provided below the upper mold plate 1, and an upper mold base 4 is provided below the connecting block assembly 3, so that the three are connected as one. At the same time, a runner assembly 7 is provided between the upper mold base 4 and the upper mold plate 1. The injection port assembly 2 in the upper mold plate 1 is used to inject the injection liquid into the runner assembly 7, and the injection column below the runner assembly 7 injects the injection liquid into the entire mold. A lower mold base 5 and a lower mold plate 6 are provided below the upper mold base 4, and the upper mold core portion 401 below the upper mold base 4 and the lower mold core portion 501 above the lower mold base 5 are pressed into a complete cavity. At the same time, the push block 14 provided above the lower mold base 5 is placed under the product part, and the top plate 8 is provided outside the support column 13 provided above the lower mold plate 6, and the top plate 8 is respectively provided with a push column 9, a straight push rod 10 and an inclined push rod 11. When the mold is opened, the bottom of the top plate 8 is lifted by the external force, so that the push column 9 pushes open the upper mold base 4 and the structure above it, and the upper mold core 401 is separated from the product part. At the same time, the straight push rod 10 and the inclined push rod 11 are inserted into the push block 14. At this time, the push block 14 pushes the product part out of the lower mold core 501 and completes the mold opening.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods, without departing from the spirit of the present invention.

[0043] Although this article frequently uses terms such as 1. upper mold plate; 2. injection port assembly; 3. connecting block assembly; 4. upper mold base; 401. upper mold core; 402. insert block; 403. stop block; 5. lower mold base; 501. lower mold core; 502. slot; 503. groove; 6. lower mold plate; 601. stop groove; 7. runner assembly; 8. ejector plate; 9. ejector column; 10. straight ejector pin; 11. inclined ejector pin; 12. positioning column; 13. support column; 14. ejector block, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention. Interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. An automobile bumper injection mold, comprising an upper mold plate (1), characterized in that: The middle of the upper mold plate (1) is provided with an injection port assembly (2), and a connecting block assembly (3) is provided around the lower part of the upper mold plate (1), an upper mold base (4) is provided below the connecting block assembly (3), and a flow channel assembly (7) is provided between the middle of the upper mold base (4) and the lower part of the upper mold base (1), a lower mold base (5) is provided in the middle of the lower part of the upper mold base (4), and the two sides of the lower part of the upper mold base (4) are inserted into the two sides of the lower mold plate (6), a push piece block (14) is provided above the lower mold base (5), and the upper mold base (4) A cavity is formed between the upper die base (4) and the lower die plate (6), and positioning columns (12) are provided at the four corners between the upper die base (4) and the lower die plate (6), and a support column (13) is provided in the middle of the upper part of the lower die plate (6), and a top plate (8) is provided on the outer sleeve of the support column (13), and a top column (9), a straight ejector rod (10) and an inclined ejector rod (11) are provided above the top plate (8), and the top of the ejector column (9) is inserted into the lower die base (5), and the tops of the straight ejector rod (10) and the inclined ejector rod (11) are inserted into the pusher block (14).

2. The automobile bumper injection mold according to claim 1, characterized in that: The middle of the upper template (1) is inserted and fixedly connected to the injection port assembly (2), and the lower part of the upper template (1) is fixedly connected to the connecting block assembly (3), and the lower part of the connecting block assembly (3) is fixedly connected to the upper part of the upper mold base (4). The flow channel assembly (7) is fixedly connected between the upper middle part of the upper mold base (4) and the lower middle part of the upper template (1), and the middle part of the flow channel assembly (7) is inserted into the bottom of the injection port assembly (2), and the injection column below the flow channel assembly (7) is inserted into the upper mold base (4).

3. The automobile bumper injection mold according to claim 2, characterized in that: An upper mold core portion (401) is provided in the lower portion of the upper mold base (4), and the front and rear sides of the middle portion of the lower portion of the upper mold base (4) are fixedly connected to the plug portion (402), while both sides of the lower portion of the upper mold base (4) are fixedly connected to the stopper portion (403), and the upper mold core portion (401) is inserted into the bottom of the injection column below the flow channel assembly (7).

4. The automobile bumper injection mold according to claim 3, characterized in that: A lower mold core portion (501) is provided above the lower mold base (5), and slot portions (502) are provided at the front and rear sides of the upper middle portion of the lower mold base (5), while a groove portion (503) is provided at the bottom of the lower mold base (5). A sliding connection push piece block (14) is inserted into the lower mold core portion (501), and the top of the push piece block (14) is flush with the top of the lower mold core portion (501).

5. The automobile bumper injection mold according to claim 4, characterized in that: The insert block portion (402) is inserted into the sliding connection slot portion (502), and both sides of the lower die base (5) are clamped in the middle of the inner side of the stop block portion (403), and the lower die core portion (501) and the upper die core portion (401) are combined to form a forming cavity.

6. The automobile bumper injection mold according to claim 5, characterized in that: The lower part of the lower die base (5) is fixedly connected to the middle part of the upper part of the lower die plate (6), and retaining grooves (601) are provided on both sides of the upper part of the lower die plate (6). Meanwhile, a sliding connecting block portion (403) is inserted into the retaining grooves (601), and the upper sides of the lower die plate (6) are tightly fitted with the lower sides of the upper die base (4).

7. The automobile bumper injection mold according to claim 6, characterized in that: The four corners of the lower template (6) are fixedly connected with positioning columns (12), the four corners of the upper mold base (4) are provided with positioning holes, and the positioning columns (12) are inserted into the positioning holes for sliding connection. A plurality of support columns (13) are fixed in the middle of the upper part of the lower template (6), and the top of the support column (13) is tightly fitted with the top of the groove portion (503).

8. The automobile bumper injection mold according to claim 7, characterized in that: The support column (13) is provided with a sliding connection top plate (8) on its outer sleeve, and the top plate (8) is placed between the lower mold base (5) and the lower mold plate (6). The top plate (8) is fixedly connected to the top column (9) at the four corners, and the top column (9) is inserted into the sliding connection lower mold base (5), and at the same time, the top of the top column (9) is tightly fitted with the top of the upper mold core (401).

9. The automobile bumper injection mold according to claim 8, characterized in that: A plurality of straight push rods (10) and a plurality of inclined push rods (11) are fixedly connected above the top plate (8), and the plurality of straight push rods (10) and the plurality of inclined push rods (11) are arranged in order.

10. The automobile bumper injection mold according to claim 1, characterized in that: The upper part of the straight push rod (10) and the upper part of the inclined push rod (11) are both inserted into the sliding connection lower die base (5), and the tops of the straight push rod (10) and the inclined push rod (11) are both inserted into the fixed connection push piece block (14).

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