Injection molding mold for low-temperature-resistant refrigerator plastic part

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a low-temperature-resistant refrigerator plastic part injection molding mold. The die comprises an upper die plate, an upper die base is arranged below the upper die plate, an upper die core block is clamped into the bottom of the upper die base, 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, and an upper cavity groove formed in the bottom of the upper die core block is clamped on a lower core part arranged above the lower die core block. The upper die core block and the lower die core block which are arranged in the die are mutually inserted, a product piece is formed in the die, when the die is opened, the product piece is arranged above the lower die core block, the upper die core block is inserted into the lower die core block, the upper die core block is inserted into the lower die core block, the upper die core block is inserted into the lower die core block, and the upper die core block is inserted into the lower die core block. And external auxiliary part taking is achieved, shaking of an ejected product is avoided, the situations that the wall of the box body cracks and the like are prevented, the manual labor amount 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 molding mold for low-temperature resistant refrigerator plastic parts. 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. The existing low-temperature resistant refrigerator plastic parts are in the shape of a box. After the injection molding mold is opened, most of them will set an ejection mechanism inside the mold for the convenience of taking out the product parts. This will cause the box to shake and crack the box wall. The product parts will be scrapped or reshaped, increasing the amount of manual labor and reducing work efficiency. Therefore, in response to the above problems, a low-temperature resistant refrigerator plastic part injection molding mold is proposed. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a low-temperature resistant refrigerator plastic part injection molding mold.

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

[0005] The mould for injection molding of low-temperature refrigerator-resistant plastic parts comprises an upper mould plate, an upper mould base is arranged below the upper mould plate, and an upper mould core block is clamped inside the lower part of the upper mould base, an injection port assembly is inserted in the upper mould plate, the lower mould base is pressed together with the lower mould base, and a lower mould core block is inserted inside the upper part of the lower mould base, the upper part of the lower mould core block is inserted in the bottom of the upper mould core block, and an internal moulding cavity is formed, a positioning column is arranged between the upper mould base and the lower mould base, a supporting block is arranged below the lower mould base, and a lower mould plate is arranged below the supporting block, a supporting column and a sliding column are arranged above the lower mould plate, and the upper part of the sliding column is inserted in the lower mould base, a top plate is arranged outside the supporting column and the sliding column, a main top column is arranged above the top plate, and the upper part of the main top column is inserted in the lower mould base, a spring is arranged outside the middle part of the main top column, and the upper part of the spring is inserted in the bottom of the lower mould base.

[0006] In the above-mentioned low-temperature resistant refrigerator plastic part injection molding 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 bottom of the upper mold base is fixedly connected to the raised ring part, and the raised ring part is placed outside the upper mold core groove. The upper mold core block is inserted and fixedly connected in the upper mold core groove, and an upper cavity groove is opened at the bottom of the upper mold core block.

[0007] In the above-mentioned low-temperature resistant refrigerator plastic part injection molding mold, a lower mold core groove and a groove ring portion are opened above the lower mold base, and the groove ring portion is placed a circle above the lower mold core groove, and the lower mold core block is fixedly connected in the lower mold core groove, and the lower core portion is fixedly connected above the lower mold core block.

[0008] In the above-mentioned low-temperature resistant refrigerator plastic part injection molding mold, the raised ring portion is inserted into the sliding connection groove ring portion, the lower core portion is inserted into the sliding connection upper cavity groove, and the upper cavity groove and the lower core portion are combined into an inner molding cavity.

[0009] In the above-mentioned low-temperature resistant refrigerator plastic part injection molding mold, the upper mold plate, the upper mold base and the upper mold core block are inserted with an injection port assembly fixedly connected, and the bottom of the injection port assembly is connected to the upper cavity groove.

[0010] In the above-mentioned low-temperature resistant refrigerator plastic part injection molding 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, and there is a distance between the positioning columns and the lower mold core groove, and the upper part of the positioning columns is inserted into the sliding connection positioning hole.

[0011] In the above-mentioned low-temperature resistant refrigerator plastic part injection molding mold, the lower sides of the lower mold base are fixedly connected to support blocks, and the lower mold plate is fixedly connected to the support block below, and a plurality of support columns and sliding columns are fixedly connected to the middle of the upper part of the lower mold plate.

[0012] In the above-mentioned low-temperature resistant refrigerator plastic part injection molding mold, the top of the support column is tightly fitted with the bottom of the lower mold base, the top of the sliding column is inserted into the bottom of the sliding lower mold base, and the support column and the sliding column are provided with a sliding connection top plate.

[0013] In the above-mentioned low-temperature resistant refrigerator plastic part injection molding 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 is tightly fitted with the bottom of the upper mold base.

[0014] In the above-mentioned low-temperature resistant refrigerator plastic part injection molding 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 the bottom of the spring is tightly fitted with the top of the top plate.

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

[0016] The utility model has an upper die seat below the upper die plate, and an upper die core block is clamped in the bottom of the upper die seat, a lower die seat is pressed under the upper die seat, and a lower die core block is arranged above the lower die seat, an upper cavity groove arranged in the bottom of the upper die core block is clamped on a lower core portion arranged above the lower die core block, a support block and a lower die plate are arranged below the lower die seat, and a top plate is arranged above the lower die plate, main ejector columns are arranged at the four corners of the top plate, and a spring is arranged in the middle of the main ejector rod, and a product part is formed inside by mutual insertion of the upper die core block and the lower die core block arranged inside the mold, and when the mold is opened, the product part is placed above the lower die core block, and external auxiliary parts are used to avoid shaking of ejected product parts, prevent cracking of the box wall, etc., reduce manual labor, and increase 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; 32. raised ring; 4. lower mold base; 41. lower mold core groove; 42. groove ring; 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 core; 10. positioning hole; 11. positioning column; 12. sliding column; 13. support column; 14. main top column; 15. spring. DETAILED DESCRIPTION

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

[0025] like Figure 1-5As shown, a low-temperature resistant refrigerator plastic part injection molding 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 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 below the upper mold base 3, and a lower mold core block 9 is inserted above the lower mold base 4, and the upper mold core block 9 is inserted in the bottom of the upper mold core block 8, and an internal molding cavity is provided between the upper mold base 3 and the lower mold base 4. There is a positioning column 11, a support block 5 is provided below the lower mold base 4, and a lower mold plate 6 is provided below the support block 5, a support column 13 and a sliding column 12 are provided above the lower mold base 6, and the upper part of the sliding column 12 is inserted in the lower mold base 4, a top plate 7 is provided outside the support column 13 and the sliding column 12, a main top column 14 is provided above the top plate 7, and the upper part of the main top column 14 is inserted in the lower mold base 4, a spring 15 is provided outside the middle part of the main top column 14, and the upper part of the spring 15 is inserted in the bottom of the lower mold base 4.

[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 a raised ring part 32 is fixedly connected to the bottom of the upper mold base 3, and the raised ring part 32 is arranged outside the upper mold core groove 31, and an 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 at the bottom of the upper mold core block 8.

[0027] Furthermore, a lower mold core groove 41 and a groove ring 42 are opened above the lower mold base 4, and the groove ring 42 is placed above the lower mold core groove 41. The lower mold core block 9 is fixedly connected in the lower mold core groove 41, and the lower core part 91 is fixedly connected above the lower mold core block 9.

[0028] Further, the raised ring portion 32 is inserted into the sliding connection groove ring portion 42, the lower core portion 91 is inserted into the sliding connection upper cavity groove 81, and the upper cavity groove 81 and the lower core portion 91 are combined into an inner molding cavity.

[0029] An upper mold base 3 is provided below the upper mold plate 1, and an upper mold core block 8 is provided at the bottom of the upper mold base 3. The upper mold base 3 is used to press the lower mold base 4 below, and a lower mold core block 9 is provided above the lower mold base 4. In this way, an upper cavity groove 81 provided at the bottom of the upper mold core block 8 is inserted into a lower core portion 91 provided above the lower mold core block 9 to form an internal molding cavity. At the same time, the outer circle of the cavity is sealed by the cooperation of the raised circle portion 32 and the groove circle portion 42 to prevent the injection liquid from overflowing and producing burrs during injection molding.

[0030] Furthermore, the upper mold plate 1 , the upper mold base 3 and the upper mold core block 8 are inserted and fixedly connected to the injection port assembly 2 , and the bottom of the injection port assembly 2 is communicated with the upper cavity groove 81 .

[0031] After the injection port assembly 2 is partially inserted into the entire mold, injection molding is performed on the internal cavity to complete the internal formation of the product part.

[0032] Positioning holes 10 are opened at the four corners of the upper die base 3 , and positioning columns 11 are fixedly connected to 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 , and the upper part of the positioning columns 11 is inserted into the sliding connection positioning holes 10 .

[0033] A positioning column 11 is provided between the upper die base 3 and the lower die base 4 to ensure the accuracy of mold closing.

[0034] The lower mold base 4 is fixedly connected to support blocks 5 on both sides thereof, and the lower mold plate 6 is fixedly connected to the support blocks 5 below. The upper middle part of the lower mold plate 6 is fixedly connected to a plurality of support columns 13 and sliding columns 12 .

[0035] Furthermore, the top of the support column 13 is tightly fitted with the bottom of the lower mold base 4, the upper part of the sliding column 12 is inserted into the bottom of the lower mold base 4 for sliding connection, and the support column 13 and the sliding column 12 are provided with a sliding connection top plate 7 outside.

[0036] 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 .

[0037] A support block 5 and a lower mold plate 6 are provided below the lower mold base 4, and a support column 13 and a sliding column 12 are provided above the lower mold plate 6, so that the top plate 7 moves by relying on the support column 13 and the sliding column 12 under the action of external force, and a main top column 14 is provided above the top plate 7. When the top plate 7 moves upward, the main top column 14 is driven to push the upper mold base 3 and the upper parts upward.

[0038] 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 .

[0039] After a spring 15 is arranged in the middle of the main top column 14, after the top plate 7 completes the lifting action, the top plate 7 is reset by utilizing the characteristics of the spring 15.

[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. An upper cavity groove 81 provided at the bottom of the upper mold core block 8 is inserted into a lower core portion 91 provided above the lower mold core block 9, so that a molding cavity is formed inside the two, and then the injection port assembly 2 is used to inject the inside to form a product inside the mold cavity. A support block 5 and a lower mold plate 6 are provided below the lower mold base 4. A top plate 7 is provided above the lower mold plate 6, and main push columns 14 are provided at the four corners of the top plate 7. 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 push columns 14 to push up, so that the main push columns 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. In this way, the product is taken by manual or machine claws, and the mold opening is completed, and then under the action of the spring 15, the top plate 7 and the main push columns 14 are 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; 32, raised ring; 4, lower mold base; 41, lower mold core groove; 42, groove ring; 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 core; 10, positioning hole; 11, positioning column; 12, sliding column; 13, support column; 14, main top column; 15, spring, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain 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 low-temperature resistant refrigerator plastic part injection molding 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 inserted above the lower mold base (4); the upper part of the lower mold core block (9) is inserted into the bottom of the upper mold core block (8), and an internal molding cavity is formed; a positioning column (11) is provided between the upper mold base (3) and the lower mold base (4); and a lower mold base (4) is provided below the lower mold base (4). A support block (5) is provided on the side, and a lower mold plate (6) is provided below the support block (5); a support column (13) and a sliding column (12) are provided above the lower mold plate (6), and the upper part of the sliding column (12) is inserted into the lower mold base (4); a top plate (7) is provided on the outer sleeve of the support column (13) and the sliding column (12); a main top column (14) is provided above the top plate (7), and the upper part of the main top column (14) is inserted into the lower mold base (4); a spring (15) is provided on the outer sleeve of the middle part of the main top column (14), and the upper part of the spring (15) is inserted into the bottom of the lower mold base (4).

2. The low-temperature resistant refrigerator plastic part injection molding mold according to claim 1, characterized in that: The upper mold plate (1) is fixedly connected to the upper mold base (3) at the bottom, and an upper mold core groove (31) is provided in the bottom of the upper mold base (3). The bottom of the upper mold base (3) is fixedly connected to a raised ring portion (32), and the raised ring portion (32) is arranged in a circle outside the upper mold core groove (31). An upper mold core block (8) is inserted and fixedly connected in the upper mold core groove (31), and an upper cavity groove (81) is provided in the bottom of the upper mold core block (8).

3. The low temperature resistant refrigerator plastic part injection molding mold according to claim 2, characterized in that: A lower mold core groove (41) and a groove ring portion (42) are provided on the upper side of the lower mold base (4), and the groove ring portion (42) is arranged one circle above the lower mold core groove (41). A lower mold core block (9) is inserted and fixedly connected in the lower mold core groove (41), and a lower core portion (91) is fixedly connected on the upper side of the lower mold core block (9).

4. The low-temperature resistant refrigerator plastic part injection molding mold according to claim 3, characterized in that: The raised ring portion (32) is inserted into the sliding connection groove ring portion (42), the lower core portion (91) is inserted into the sliding connection upper cavity groove (81), and the upper cavity groove (81) and the lower core portion (91) are combined into an inner molding cavity.

5. The low temperature resistant refrigerator plastic part injection molding mold according to claim 4, characterized in that: The upper mold plate (1), the upper mold base (3) and the upper mold core block (8) are inserted and fixedly connected to the injection port assembly (2), and the bottom of the injection port assembly (2) is communicated with the upper cavity groove (81).

6. The low-temperature resistant refrigerator plastic part injection molding mold according to claim 5, characterized in that: 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).

7. The low-temperature resistant refrigerator plastic part injection molding mold according to claim 6, characterized in that: Both sides below the lower die base (4) are fixedly connected to support blocks (5), and the support blocks (5) are fixedly connected to the lower die plate (6) below, and the upper middle portion of the lower die plate (6) is fixedly connected to a plurality of support columns (13) and sliding columns (12).

8. The low-temperature resistant refrigerator plastic part injection molding mold according to claim 7, characterized in that: The top of the support column (13) is tightly fitted with the bottom of the lower mold base (4); the top of the sliding column (12) is inserted into the bottom of the lower mold base (4) for sliding connection; and a sliding connection top plate (7) is arranged outside the support column (13) and the sliding column (12).

9. The low-temperature resistant refrigerator plastic part injection molding mold according to claim 8, 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).

10. The low temperature resistant refrigerator plastic part injection molding mold according to claim 9, 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).

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