Injection mold for stool surface of high-strength thick-wall plastic folding stool

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold for a stool surface of a high-strength thick-wall plastic folding stool. The die comprises an upper die plate, an upper die base and an upper die core block are arranged below the upper die plate, a lower die base is pressed below the upper die base, a lower die core block is arranged in the upper portion of the lower die base, an internal forming cavity is pressed between the lower die core block and the upper die core block, a supporting block and a lower die plate are arranged below the lower die base, and a top plate is arranged above the lower die plate. Main ejection columns are arranged at the four corners of the ejection plate, springs are arranged in the middles of the main ejection columns in a sleeved mode, and a first straight ejection rod and a second straight ejection rod are arranged in the middle of the upper portion of the ejection plate. The labor amount of workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds and relates to an injection mold for a high-strength thick-walled plastic folding bench surface. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors and patterns, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding and processing fields such as products with complex shapes. Most of the existing plastic folding benches are single injection molded because the bench surface is relatively thick and the shape is complex and needs to be installed later. However, because the injection molded product is thick, it is easy to cause jamming when opening the mold, so it needs to be manually removed, which sometimes causes deformation or damage of the product, which increases the amount of manual labor. If it is reshaped, it will cause a decrease in work efficiency. Therefore, in response to the above problems, a high-strength thick-walled plastic folding bench seat injection mold is proposed. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a high-strength thick-wall plastic folding bench seat injection mold.

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

[0005] The folding mold is a kind of high-strength thick-walled plastic folding bench seat injection mold, comprising an upper mold plate, an upper mold base is provided under the upper mold plate, and an upper mold core block is clamped in the lower part of the upper mold plate, an injection port assembly is inserted in the upper mold plate, the upper mold plate and the upper mold core block, a lower mold base is pressed together under the upper mold plate, and a lower mold core block is clamped in the upper part of the lower mold plate, the lower mold core block and the upper mold core block are pressed together into an internal molding cavity, a positioning column is provided between the upper mold plate and the lower mold plate, a support block is provided under the lower mold plate, and a lower mold plate is provided under the support block, a support column and a sliding column are provided above the lower mold plate, and the sliding column is inserted in the lower mold plate above, a top plate is provided outside the support column and the sliding column, a main ejector column, a first straight ejector rod and a second straight ejector rod are provided above the top plate, and the main ejector column, the first straight ejector rod and the second straight ejector rod are all inserted in the lower mold plate, and a spring is provided outside the middle part of the main ejector column.

[0006] In the above-mentioned high-strength thick-walled plastic folding bench seat injection mold, the upper mold base is fixedly connected to the bottom of the upper mold base, and an upper mold core groove is opened in the bottom of the upper mold base, and the upper mold core block is fixedly connected in the upper mold core groove, and an upper cavity groove is opened in the bottom of the upper mold core block, and an injection port assembly is inserted and fixedly connected in the upper mold base, the upper mold base and the upper mold core block, and the bottom of the injection port assembly is connected to the upper cavity groove.

[0007] In the above-mentioned high-strength thick-walled plastic folding bench seat injection mold, a lower mold core groove is opened above the lower mold base, and a lower mold core block is fixedly connected in the lower mold core groove, and a lower cavity groove is opened above the lower mold core block, and the lower cavity groove and the upper cavity groove are combined into an inner molding cavity.

[0008] In the above-mentioned high-strength thick-walled plastic folding bench seat injection mold, positioning holes are opened at the four corners of the upper mold base, and positioning columns are fixedly connected at the four corners of the lower mold base. There is a distance between the positioning columns and the lower mold core groove, and the top of the positioning columns is inserted into the sliding connection positioning hole.

[0009] In the above-mentioned high-strength thick-walled plastic folding bench seat injection mold, support blocks are fixedly connected on both sides of the lower mold base, and the lower mold plate is fixedly connected to the support blocks. A plurality of support columns and sliding columns are fixedly connected to the middle of the upper part of the lower mold plate, and the top of the support column is tightly fitted with the bottom of the lower mold base, and the top of the sliding column is inserted into the bottom of the sliding connection lower mold base.

[0010] In the above-mentioned high-strength thick-walled plastic folding bench seat injection mold, the support column and the sliding column outer shell are provided with a sliding connection top plate, and there is a distance between the top plate and the inner wall of the support block and the upper plane of the lower template respectively.

[0011] In the above-mentioned high-strength thick-walled plastic folding bench seat injection mold, the main top columns are fixedly connected at the four corners of the top plate, and the upper section of the main top column passes through and is slidably connected to the lower mold base, while the top of the main top column fits tightly with the bottom of the upper mold base.

[0012] In the above-mentioned high-strength thick-walled plastic folding bench seat injection mold, a sliding connection spring is arranged outside the middle of the main top column, and the top of the spring is inserted into the bottom of the sliding connection lower mold base, and at the same time, the bottom of the spring is tightly fitted with the top of the top plate.

[0013] In the above-mentioned high-strength thick-walled plastic folding bench seat injection mold, a plurality of first straight push rods and second straight push rods are fixedly connected to the middle part of the top plate, and there is a gap between the first straight push rods and the second straight push rods.

[0014] In the above-mentioned high-strength thick-walled plastic folding bench seat injection mold, the first straight push rod and the second straight push rod are inserted into the sliding connection between the lower mold base and the lower mold core block, and the top of the first straight push rod and the second straight push rod are flush with the bottom of the lower cavity groove.

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

[0016] The utility model has an upper die seat and an upper die core block below the upper die plate, a lower die seat is pressed together below the upper die seat, a lower die core block is arranged above the lower die seat, an internal molding cavity is pressed together between the lower die core block and the upper die core block, a support block and a lower die plate are arranged below the lower die seat, a top plate is arranged above the lower die plate, main die posts are arranged at the four corners of the top plate, a spring is sleeved in the middle of the main die post, a first straight ejector rod and a second straight ejector rod are arranged in the middle above the top plate, and the first straight ejector rod and the second straight ejector rod provided in the mold are used to demold the corresponding product parts, thus eliminating the need for manual picking, avoiding deformation or damage of product parts, reducing the workload of workers, and increasing work efficiency.

[0017] Other advantages, objectives and features of the present invention will be embodied 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 an overall exploded top view of the utility model.

[0020] Figure 3 It is an overall exploded bottom view schematic diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure coordination of the utility model;

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

[0023] In the figure: 1. upper mold plate; 2. injection port assembly; 3. upper mold base; 31. upper mold core groove; 4. lower mold base; 41. lower mold core groove; 5. support block; 6. lower mold plate; 7. top plate; 8. upper mold core block; 81. upper cavity groove; 9. lower mold core block; 91. lower cavity groove; 10. positioning hole; 11. positioning column; 12. support column; 13. sliding column; 14. main ejector column; 15. spring; 16. first straight ejector rod; 17. second straight ejector rod. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-5As shown, a high-strength thick-walled plastic folding bench seat injection mold comprises an upper mold plate 1, an upper mold base 3 is provided below the upper mold plate 1, and an upper mold core block 8 is clamped inside the lower part of the upper mold base 3, an injection port assembly 2 is inserted in the upper mold plate 1, the upper mold base 3 and the upper mold core block 8, a lower mold base 4 is pressed together below the upper mold base 3, and a lower mold core block 9 is clamped inside the upper part of the lower mold base 4, the lower mold core block 9 and the upper mold core block 8 are pressed together to form an internal molding cavity, a positioning column 11 is provided between the upper mold base 3 and the lower mold base 4, and the lower mold A support block 5 is provided below the seat 4, and a lower mold plate 6 is provided below the support block 5, a support column 12 and a sliding column 13 are provided above the lower mold plate 6, and the upper part of the sliding column 13 is inserted in the lower mold seat 4, a top plate 7 is provided outside the support column 12 and the sliding column 13, a main ejector column 14, a first straight ejector rod 16 and a second straight ejector rod 17 are provided above the top plate 7, and the upper parts of the main ejector column 14, the first straight ejector rod 16 and the second straight ejector rod 17 are all inserted in the lower mold seat 4, and a spring 15 is provided outside the middle of the main ejector column 14.

[0026] The upper mold base 3 is fixedly connected through the lower part of the upper mold plate 1, and an upper mold core groove 31 is opened in the bottom of the upper mold base 3, and the upper mold core block 8 is inserted and fixedly connected in the upper mold core groove 31, and an upper cavity groove 81 is opened in the bottom of the upper mold core block 8, and the injection port assembly 2 is inserted and fixedly connected in the upper mold plate 1, the upper mold base 3 and the upper mold core block 8, and the bottom of the injection port assembly 2 is connected with the upper cavity groove 81.

[0027] Furthermore, a lower mold core groove 41 is opened above the lower mold base 4, and a lower mold core block 9 is fixedly connected in the lower mold core groove 41. A lower cavity groove 91 is opened above the lower mold core block 9, and the lower cavity groove 91 and the upper cavity groove 81 are combined into an inner molding cavity.

[0028] An upper mold base 3 and an upper mold core block 8 are provided below the upper mold plate 1, and an injection port assembly 2 is inserted into the three to perform injection molding inside the mold. A lower mold base 4 is pressed under the upper mold base 3, and a lower mold core block 9 is provided above the lower mold base 4, so that a forming cavity is formed between the upper mold core block 8 and the lower mold core block 9, and a product is formed inside under the action of the injection port assembly 2.

[0029] Furthermore, positioning holes 10 are opened at the four corners of the upper mold base 3, and positioning columns 11 are fixedly connected to the four corners of the lower mold base 4, and there is a distance between the positioning columns 11 and the lower mold core groove 41, and the upper part of the positioning columns 11 is inserted into the sliding connection positioning holes 10.

[0030] After the positioning column 11 is arranged between the upper die base 3 and the lower die base 4, the positioning column 11 is used to ensure accurate mold closing when the mold is closed.

[0031] The support blocks 5 are fixedly connected on both sides of the lower mold base 4, and the lower mold plate 6 is fixedly connected to the support blocks 5. A plurality of support columns 12 and sliding columns 13 are fixedly connected to the middle of the upper part of the lower mold plate 6, and the top of the support column 12 is tightly fitted with the bottom of the lower mold base 4. At the same time, the upper part of the sliding column 13 is inserted into the bottom of the lower mold base 4 for sliding connection.

[0032] Furthermore, the support column 12 and the sliding column 13 are provided with a sliding connection top plate 7, and there is a distance between the top plate 7 and the inner wall of the support block 5 and the upper plane of the lower template 6 respectively.

[0033] Furthermore, the four corners of the top plate 7 are fixedly connected to the main top columns 14 , and the upper section of the main top columns 14 passes through and is slidably connected to the lower die base 4 , while the top of the main top columns 14 is tightly fitted with the bottom of the upper die base 3 .

[0034] A main top column 14 is provided above the top plate 7 and passes through the lower die base 4. The main top column 14 is used to push against the bottom of the upper die base 3. When the mold is opened, the upper die base 3 and the components above it can be lifted up.

[0035] Furthermore, a sliding connection spring 15 is disposed on the outer middle of the main top column 14 , and the upper part of the spring 15 is inserted into the bottom of the sliding connection lower mold base 4 , and at the same time, the bottom of the spring 15 is tightly fitted with the upper part of the top plate 7 .

[0036] After a spring 15 is provided in the middle of the main top column 14, after the mold is opened, the top plate 7 together with the parts fixedly connected in the top plate 7 are reset by utilizing the characteristics of the spring 15.

[0037] A plurality of first straight push rods 16 and second straight push rods 17 are fixedly connected through the middle of the top plate 7 , and there is a gap between the first straight push rods 16 and the second straight push rods 17 .

[0038] Furthermore, the upper parts of the first straight push rod 16 and the second straight push rod 17 are inserted into the sliding connection between the lower die base 4 and the lower die core block 9 , and the tops of the first straight push rod 16 and the second straight push rod 17 are flush with the bottom of the lower cavity groove 91 .

[0039] A first straight push rod 16 and a second straight push rod 17 are provided on the top plate 7 . When the mold is opened, the first straight push rod 16 and the second straight push rod 17 correspond to the bottom of the product formed inside the mold, so that the product is ejected from the lower cavity 91 .

[0040] Working principle:

[0041] An upper mold base 3 is provided below the upper mold base 1, and an upper mold core block 8 is inserted into the bottom of the upper mold base 3, a lower mold base 4 is pressed below the upper mold base 3, and a lower mold core block 9 is provided above the lower mold base 4. After the lower mold core block 9 and the upper mold core block 8 are pressed together to form an internal molding cavity, the interior is injected using an injection port assembly 2 to form a product inside the cavity, a support block 5 and a lower mold base 6 are provided below the lower mold base 4, and a top plate 7 is provided above the lower mold base 6, main ejector columns 14 are provided at the four corners of the top plate 7, and a first straight ejector rod 16 and a second straight ejector rod 17 are provided in the middle of the top of the top plate 7, and the first straight ejector rod 16 and the second straight ejector rod 17 are provided at the same time. The rods 17 are distributed to correspond to the product parts inside the mold. When the mold is opened, after the external force is applied to the top plate 7, the top plate 7 is pushed up, driving the main ejector column 14, the first straight ejector rod 16 and the second straight ejector rod 17 to be pushed up. In this way, the main ejector column 14 will push open the upper mold base 3 and the upper mold core block 8, so that the two are separated from the top of the injection-molded product part. At the same time, the first straight ejector rod 16 and the second straight ejector rod 17 push the product part to separate from the lower cavity groove 91 in the lower mold core block 9, and the mold opening is completed. Then, under the action of the spring 15, the top plate 7, the main ejector column 14, the first straight ejector rod 16 and the second straight ejector rod 17 are all reset.

[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 in similar ways without departing from the spirit of the present invention.

[0043] Although this article uses more terms such as 1, upper mold plate; 2, injection port assembly; 3, upper mold base; 31, upper mold core groove; 4, lower mold base; 41, lower mold core groove; 5, support block; 6, lower mold plate; 7, top plate; 8, upper mold core block; 81, upper cavity groove; 9, lower mold core block; 91, lower cavity groove; 10, positioning hole; 11, positioning column; 12, support column; 13, sliding column; 14, main ejector column; 15, spring; 16, first straight ejector rod; 17, second straight ejector rod, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model. It is contrary to the spirit of the utility model to interpret them as any additional restrictions.

Claims

1. A high-strength thick-walled plastic folding bench seat injection mold, comprising an upper mold plate (1), characterized in that: An upper mold base (3) is provided below the upper mold base (1), and an upper mold core block (8) is clamped inside the lower mold base (3); an injection port assembly (2) is inserted into the upper mold base (1), the upper mold base (3) and the upper mold core block (8); a lower mold base (4) is pressed below the upper mold base (3), and a lower mold core block (9) is clamped above the lower mold base (4); the lower mold core block (9) and the upper mold core block (8) are pressed together to form an internal molding cavity; a positioning column (11) is provided between the upper mold base (3) and the lower mold base (4); a support block (5) is provided below the lower mold base (4), and a support block (5) is provided below the lower mold base (4). A lower mold plate (6) is provided below the block (5), a support column (12) and a sliding column (13) are provided above the lower mold plate (6), and the upper part of the sliding column (13) is inserted into the lower mold base (4), a top plate (7) is provided on the outer sleeve of the support column (12) and the sliding column (13), a main top column (14), a first straight top rod (16) and a second straight top rod (17) are provided above the top plate (7), and the upper parts of the main top column (14), the first straight top rod (16) and the second straight top rod (17) are all inserted into the lower mold base (4), and a spring (15) is provided on the middle part of the main top column (14).

2. The high-strength thick-walled plastic folding bench seat injection mold according to claim 1 is characterized by: The upper mold base (3) is fixedly connected to the lower part of the upper mold base (1), and an upper mold core groove (31) is provided in the bottom of the upper mold base (3). An upper mold core block (8) is fixedly inserted into the upper mold core groove (31), and an upper cavity groove (81) is provided in the bottom of the upper mold core block (8). An injection port assembly (2) is inserted and fixedly connected to the upper mold base (1), the upper mold base (3) and the upper mold core block (8), and the bottom of the injection port assembly (2) is connected to the upper cavity groove (81).

3. The high-strength thick-walled plastic folding bench seat injection mold according to claim 2 is characterized by: A lower mold core groove (41) is provided above the lower mold base (4), and a lower mold core block (9) is fixedly inserted into the lower mold core groove (41). A lower cavity groove (91) is provided above the lower mold core block (9), and the lower cavity groove (91) and the upper cavity groove (81) are combined into an inner molding cavity.

4. The high-strength thick-walled plastic folding bench seat injection mold according to claim 3 is characterized by: Positioning holes (10) are provided at the four corners of the upper die base (3); positioning columns (11) are fixedly connected at the four corners of the lower die base (4); and there is a distance between the positioning columns (11) and the lower die core groove (41); the upper part of the positioning columns (11) is inserted into the sliding connection positioning hole (10).

5. The high-strength thick-walled plastic folding bench seat injection mold according to claim 4 is characterized by: Both sides of the lower die base (4) are fixedly connected to support blocks (5), and the lower die plate (6) is fixedly connected to the support blocks (5) below. A plurality of support columns (12) and sliding columns (13) are fixedly connected to the middle of the upper portion of the lower die plate (6), and the top of the support column (12) is tightly fitted with the bottom of the lower die base (4), while the upper portion of the sliding column (13) is inserted into the bottom of the lower die base (4) for sliding connection.

6. The high-strength thick-walled plastic folding bench seat injection mold according to claim 5, characterized in that: The support column (12) and the sliding column (13) are provided with a sliding connection top plate (7) on the outer surface, and there is a distance between the top plate (7) and the inner wall of the support block (5) and the upper plane of the lower template (6).

7. The high-strength thick-walled plastic folding bench seat injection mold according to claim 6, characterized in that: The top plate (7) is fixedly connected to the main top column (14) at the four corners, and the upper section of the main top column (14) passes through and is slidably connected to the lower die base (4), while the top of the main top column (14) is tightly fitted with the bottom of the upper die base (3).

8. The high-strength thick-walled plastic folding bench seat injection mold according to claim 7, characterized in that: A sliding connection spring (15) is disposed on the outer middle of the main top column (14), and the upper part of the spring (15) is inserted into the bottom of the sliding connection lower die seat (4), and the bottom of the spring (15) is tightly fitted with the upper part of the top plate (7).

9. The high-strength thick-walled plastic folding bench seat injection mold according to claim 8, characterized in that: A plurality of first straight push rods (16) and second straight push rods (17) are fixedly connected in the middle of the top plate (7), and a gap is provided between the first straight push rods (16) and the second straight push rods (17).

10. The high-strength thick-walled plastic folding bench seat injection mold according to claim 9, characterized in that: The first straight push rod (16) and the second straight push rod (17) are inserted into the lower mold base (4) and the lower mold core block (9) for sliding connection, and the top of the first straight push rod (16) and the second straight push rod (17) are flush with the bottom of the lower cavity groove (91).

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