Polypropylene ice bucket injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a polypropylene ice bucket injection mold. The mold comprises a barrel body mold base, a lower mold base is arranged below the barrel body mold base, a product piece is arranged in the barrel body mold base and above the lower mold base, a supporting block and a lower mold plate are arranged below the lower mold base, a top plate assembly is arranged between the lower mold base and the lower mold plate, and an inclined ejector rod, a long ejector rod and a short ejector rod are arranged above the top plate assembly. After the inclined ejector rod, the ejector block, the long ejector rod and the short ejector rod which are arranged in the mold are matched, a product piece can be demolded without manual digging by utilizing the cooperation of the inclined ejector rod, the ejector block, the long ejector rod and the short ejector rod which are arranged in the mold; the edge of a product is prevented from being damaged or deformed, the condition of secondary remodeling is prevented, the labor amount and the production cost are reduced, and the working efficiency and the product yield are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and relates to an injection mold for a polypropylene ice bucket. Background Art

[0002] An injection mold is a tool for producing plastic products and also a tool for endowing plastic products with a complete structure and precise dimensions. Injection molding is a processing method used in mass production of some complex-shaped parts. Specifically, it means that the heat-melted plastic is injected into the mold cavity by a high pressure of an injection molding machine, and after cooling and solidification, a formed product is obtained. When the existing polypropylene ice bucket is injection-molded, due to the certain depth of the ice bucket and the side walls that turn outward at the top of the ice bucket, it is easy to get stuck in the mold cavity during mold opening, and manual picking is required, resulting in damage to the edges of the product or deformation of the product, so a situation of secondary reshaping is needed, which increases the labor intensity and production cost and reduces the work efficiency and production rate. Therefore, an injection mold for a polypropylene ice bucket is proposed for the above problems. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an injection mold for a polypropylene ice bucket aiming at the above problems.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An injection mold for a polypropylene ice bucket includes a barrel mold base. Above the barrel mold base, there are an upper mold base and its injection structure. Below the barrel mold base, there is a lower mold base. In the middle of the upper part of the lower mold base and inside the barrel mold base, there is a product part. On both sides below the lower mold base, there are support blocks, and below the support blocks, there is a lower template. In the middle of the upper part of the lower template, there is a top plate assembly. Above the top plate assembly, there are an inclined ejector rod, a long ejector rod, and a short ejector rod respectively. Above the inclined ejector rod, there is a top block, and the top of the inclined ejector rod and the top block are located at the four corners of the top of the barrel mold base. The upper part of the long ejector rod is inserted into the lower mold base and the barrel mold base respectively, and the upper part of the short ejector rod is inserted into the middle of the lower mold base.

[0006] In the above injection mold for a polypropylene ice bucket, a convex part is provided above the barrel mold base, and the convex part is inserted into the upper mold base. A plurality of first through-hole parts are opened in the barrel mold base and around the convex part. At the four corners of the inside of the barrel mold base and the convex part, there are top part combination groove parts. At the same time, there is a distance between the top part combination groove parts and the first through-hole parts.

[0007] In the above injection mold for a polypropylene ice bucket, an insert part is fixedly connected below the barrel mold base. In the middle of the insert part and the convex part, there is a barrel mold cavity part. At the same time, the barrel mold cavity part penetrates the barrel mold base. A groove part is opened in the upper part of the lower mold base, and a barrel bottom forming part is opened in the middle of the bottom of the groove part.

[0008] In the above-mentioned injection mold for a polypropylene ice bucket, the insert part is fixedly connected and clamped in the groove part, and the bottom circumference of the bucket body mold base is closely attached to the upper circumference of the lower mold base. The bottom forming part of the bucket is placed at the bottom of the cavity part of the bucket body, and the bottom forming part of the bucket and the cavity part of the bucket body are combined to form a complete cavity.

[0009] In the above-mentioned injection mold for a polypropylene ice bucket, both sides below the lower mold base are fixedly connected to the tops of the support blocks, and the bottoms of the support blocks are fixedly connected to both sides above the lower template. The top plate assembly is placed above the middle of the lower template, and there are gaps between both sides of the top plate assembly and the inner sides of the support blocks respectively.

[0010] In the above-mentioned injection mold for a polypropylene ice bucket, the bottoms of a plurality of ejector pins are fixedly connected to the four corners of the top plate assembly, and the ejector pins are paired two by two and placed at the four corners of the top plate assembly. At the same time, a top block is fixedly connected between the upper parts of the ejector pins paired two by two, and the tops of the ejector pins are flush with the top of the top block.

[0011] In the above-mentioned injection mold for a polypropylene ice bucket, the middle parts of the ejector pins pass through and are slidably connected inside the lower mold base, and the upper parts of the ejector pins are inserted and slidably connected inside the ejector part combination groove. The top block is clamped inside the upper part of the ejector part combination groove, and the top of the top block is flush with the top of the convex part.

[0012] In the above-mentioned injection mold for a polypropylene ice bucket, a plurality of long ejector pins are fixedly connected above the top plate assembly. A second through-hole part is formed inside the lower mold base, and the second through-hole part communicates with the first through-hole part.

[0013] In the above-mentioned injection mold for a polypropylene ice bucket, the middle parts of the long ejector pins are respectively inserted and slidably connected inside the second through-hole part and the first through-hole part, and the tops of the long ejector pins are flush with the top of the convex part.

[0014] In the above-mentioned injection mold for a polypropylene ice bucket, a plurality of short ejector pins are fixedly connected to the middle part above the top plate assembly. A third through-hole part is formed in the middle of the lower mold base, and the upper parts of the short ejector pins are inserted and slidably connected inside the third through-hole part. At the same time, the tops of the short ejector pins are flush with the bottom of the bottom forming part of the bucket.

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

[0016] In this utility model, a lower die base is provided below the barrel die base, and a product part is provided inside the barrel die base and above the lower die base. A support block and a lower template are provided below the lower die base, and a top plate assembly is provided between the lower die base and the lower template. An inclined ejector rod, a long ejector rod, and a short ejector rod are respectively provided above the top plate assembly, and a top block is provided above the inclined ejector rod. At the same time, the inclined ejector rod and the top block are placed in the top part combination groove. After the top convex part of the long ejector rod and the top of the short ejector rod are placed in the barrel bottom forming part, by using the cooperation of the inclined ejector rod, the top block, the long ejector rod, and the short ejector rod provided inside the mold, the product part can be demolded without manual picking, avoiding damage or deformation of the edge of the product part, preventing the situation of secondary reshaping, reducing the labor intensity and production cost, and increasing the work efficiency and the product yield.

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

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

[0019] Figure 2 is the overall exploded top view schematic diagram of this utility model;

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

[0021] Figure 4 is the overall side sectional view schematic diagram of this utility model;

[0022] Figure 5 is the top view schematic diagram above the lower die base of this utility model.

[0023] In the figure: 1. Barrel die base; 101. Convex part; 102. Barrel cavity part; 103. Insert part; 2. Lower die base; 201. Groove part; 202. Barrel bottom forming part; 3. Support block; 4. Lower template; 5. Top plate assembly; 6. Inclined ejector rod; 7. Top block; 8. Long ejector rod; 9. Short ejector rod; 10. Top part combination groove; 11. First through hole part; 12. Second through hole part; 13. Third through hole part; 14. Product part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further describes this utility model with reference to the accompanying drawings.

[0025] Such as Figures 1-5As shown in the figure, a polypropylene ice bucket injection mold includes a barrel mold base 1. Above the barrel mold base 1, there is an upper mold base and its injection structure. Below the barrel mold base 1, there is a lower mold base 2. In the middle above the lower mold base 2 and inside the barrel mold base 1, there is a product part 14. On both sides below the lower mold base 2, there are support blocks 3. Below the support blocks 3, there is a lower template 4. In the middle above the lower template 4, there is a top plate assembly 5. Above the top plate assembly 5, there are inclined ejector rods 6, long ejector rods 8 and short ejector rods 9 respectively. Above the inclined ejector rods 6, there are ejector blocks 7. The tops of the inclined ejector rods 6 and the ejector blocks 7 are placed at the four corners of the top of the barrel mold base 1. The upper parts of the long ejector rods 8 are inserted into the lower mold base 2 and the barrel mold base 1 respectively. The upper parts of the short ejector rods 9 are inserted into the middle of the lower mold base 2.

[0026] There is a convex part 101 above the barrel mold base 1, and the convex part 101 is inserted into the upper mold base. A plurality of first through-hole parts 11 are arranged in a week of the barrel mold base 1 and the convex part 101. At the four corners of the inside of the barrel mold base 1 and the convex part 101, there are ejector part combination grooves 10. At the same time, there is a distance between the ejector part combination grooves 10 and the first through-hole parts 11.

[0027] After the barrel mold base 1 is connected to the upper mold base and its injection structure above, injection molding can inject injection liquid into the inside of the barrel mold base 1, so that a product part 14 is formed inside.

[0028] Furthermore, an insert part 103 is fixedly connected below the barrel mold base 1. In the middle of the insert part 103 and the middle of the convex part 101, there is a barrel mold cavity part 102. At the same time, the barrel mold cavity part 102 penetrates the barrel mold base 1. Inside the upper part of the lower mold base 2, there is a groove part 201. In the middle of the bottom of the groove part 201, there is a barrel bottom forming part 202.

[0029] Furthermore, the insert part 103 is clamped and fixedly connected in the groove part 201. The circumference of the bottom of the barrel mold base 1 is closely attached to the circumference of the upper part of the lower mold base 2. The barrel bottom forming part 202 is placed at the bottom of the barrel mold cavity part 102. The barrel bottom forming part 202 and the barrel mold cavity part 102 are combined to form a complete cavity.

[0030] There is a lower mold base 2 below the barrel mold base 1. Among them, after the barrel mold cavity part 102 provided inside the barrel mold base 1 and the barrel bottom forming part 202 provided above the lower mold base 2 are combined, injection liquid is injected into the inside to form a product part 14. At the same time, the outer wall of the circumference above the product part 14 is placed above the top of the convex part 101.

[0031] The tops of the support blocks 3 are fixedly connected to both sides below the lower mold base 2. The bottoms of the support blocks 3 are fixedly connected to both sides above the lower template 4. The top plate assembly 5 is placed above the middle of the lower template 4. There are gaps between both sides of the top plate assembly 5 and the inner sides of the support blocks 3 respectively.

[0032] Further, the four corners of the top plate assembly 5 are fixedly connected to the bottoms of a plurality of angled ejector rods 6, and the angled ejector rods 6 are arranged in pairs at the four corners of the top plate assembly 5. At the same time, a top block 7 is fixedly connected between the pairs of angled ejector rods 6 above, and the tops of the angled ejector rods 6 are flush with the top of the top block 7.

[0033] The top plate assembly 5 is arranged between the lower die base 2 and the lower template 4. In this way, after the top plate assembly 5 is subjected to an external force, it will move up and down between the lower die base 2 and the lower template 4, that is, the top plate assembly 5 will drive the angled ejector rods 6 and the top block 7 to move up and down.

[0034] Further, the middle part of the angled ejector rod 6 passes through and is slidably connected inside the lower die base 2, and the upper part of the angled ejector rod 6 is inserted and slidably connected inside the groove part 10 of the ejector part combination. The top block 7 is clamped into the upper part of the groove part 10 of the ejector part combination, and the top of the top block 7 is flush with the top of the convex part 101.

[0035] After the angled ejector rods 6 and the top block 7 are placed at the four corners of the convex part 101 above the barrel die base 1, the upper periphery of the product part 14 will press on the tops of the angled ejector rods 6 and the top block 7. In this way, the top plate assembly 5 will drive the angled ejector rods 6 and the top block 7 to jack up the four corners above the product part 14.

[0036] Further, a plurality of long ejector rods 8 are fixedly connected above the top plate assembly 5. A second through hole part 12 is opened in the lower die base 2, and the second through hole part 12 is communicated with the first through hole part 11.

[0037] Further, the middle parts of the long ejector rods 8 are respectively inserted and slidably connected inside the second through hole part 12 and the first through hole part 11, and the tops of the long ejector rods 8 are flush with the top of the convex part 101.

[0038] When the tops of the long ejector rods 8 provided above the top plate assembly 5 are placed below the peripheral wall above the product part 14, after the top plate assembly 5 rises, it will drive the long ejector rods 8 to jack up the peripheral wall above the product part 14.

[0039] Further, a plurality of short ejector rods 9 are fixedly connected to the middle part above the top plate assembly 5. A third through hole part 13 is opened in the middle of the lower die base 2, and the upper part of the short ejector rod 9 is inserted and slidably connected inside the third through hole part 13. At the same time, the top of the short ejector rod 9 is flush with the bottom of the barrel bottom forming part 202.

[0040] When the tops of the short ejector rods 9 provided in the middle of the top plate assembly 5 are placed below the bottom of the product part 14, after the top plate assembly 5 rises, it drives the short ejector rods 9 to jack up the bottom of the product part 14, so that the product part 14 is disengaged from the barrel bottom forming part 202.

[0041] Working principle:

[0042] A lower die base 2 is provided below the barrel die base 1, and the insert part 103 provided below the barrel die base 1 will be snapped into the groove part 201 above the lower die base 2, so that the barrel die base 1 and the lower die base 2 are pressed together. Then, the barrel die cavity part 102 provided inside the barrel die base 1 and the barrel bottom forming part 202 provided inside the lower die base 2 are combined into a complete cavity, and a product part 14 is injection-molded in the cavity. At the same time, the outer wall of the upper week of the product part 14 will be pressed against the top of the convex part 101. A support block 3 and a lower template 4 are provided below the lower die base 2, and a top plate assembly 5 is provided between the lower die base 2 and the lower template 4. Then, the top plate assembly 5 will move up and down between the lower die base 2 and the lower template 4 under an external force. An inclined ejector rod 6, a long ejector rod 8 and a short ejector rod 9 are respectively provided above the top plate assembly 5, and a top block 7 is provided above the inclined ejector rod 6. At the same time, the inclined ejector rod 6 and the top block 7 are also placed in the ejector part combination groove 10 provided at the four corners of the convex part 101, so that the tops of the inclined ejector rod 6 and the top block 7 are both placed below the four corners of the peripheral wall above the product part 14, and the top of the long ejector rod 8 is distributed around the top of the convex part 101. Then, when demolding, the inclined ejector rod 6, the top block 7 and the long ejector rod 8 will jointly push open the peripheral wall above the product part 14. After the top of the short ejector rod 9 is placed in the barrel bottom forming part 202, the top of the short ejector rod 9 will push up the bottom of the product part 14 during demolding. That is, during demolding, the inclined ejector rod 6, the top block 7, the long ejector rod 8 and the short ejector rod 9 rise with the top plate assembly 5 and eject the product part 14 out of the barrel die base 1.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention.

[0044] Although terms such as 1, barrel die base; 101, convex part; 102, barrel die cavity part; 103, insert part; 2, lower die base; 201, groove part; 202, barrel bottom forming part; 3, support block; 4, lower template; 5, top plate assembly; 6, inclined ejector rod; 7, top block; 8, long ejector rod; 9, short ejector rod; 10, ejector part combination groove; 11, first through-hole part; 12, second through-hole part; 13, third through-hole part; 14, product part are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more conveniently describing and explaining the essence of the present invention, and interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A polypropylene ice bucket injection mold, including a bucket body mold base (1), with an upper mold base and its injection structure arranged above the bucket body mold base (1), characterized in that: A lower die base (2) is provided below the barrel die base (1), and a product part (14) is provided in the middle above the lower die base (2) and inside the barrel die base (1). Support blocks (3) are provided on both sides below the lower die base (2), and a lower template (4) is provided below the support blocks (3). A top plate assembly (5) is provided in the middle above the lower template (4), and a slant ejector rod (6), a long ejector rod (8), and a short ejector rod (9) are respectively provided above the top plate assembly (5). A top block (7) is provided above the slant ejector rod (6), and the top of the slant ejector rod (6) and the top block (7) are placed at the four corners of the top of the barrel die base (1). The upper part of the long ejector rod (8) is respectively inserted into the lower die base (2) and the barrel die base (1), and the upper part of the short ejector rod (9) is inserted into the middle of the lower die base (2).

2. The injection mold for polypropylene ice buckets according to claim 1, wherein: A convex part (101) is provided above the barrel die base (1), and the convex part (101) is inserted into the upper die base. A plurality of first through-hole parts (11) are provided within one week of the barrel die base (1) and the convex part (101), and ejector part combination grooves (10) are provided at the four corners inside the barrel die base (1) and the convex part (101). At the same time, there is a distance between the ejector part combination grooves (10) and the first through-hole parts (11).

3. The injection mold for polypropylene ice buckets according to claim 2, characterized in that: An insert part (103) is fixedly connected below the barrel die base (1), and a barrel die cavity part (102) is provided in the middle of the insert part (103) and the convex part (101). At the same time, the barrel die cavity part (102) penetrates through the barrel die base (1). A groove part (201) is provided inside the upper part of the lower die base (2), and a barrel bottom forming part (202) is provided in the middle of the inner bottom of the groove part (201).

4. The injection mold for polypropylene ice buckets according to claim 3, characterized in that: The insert part (103) is clamped and fixedly connected in the groove part (201), and the periphery of the bottom of the barrel die base (1) is closely attached to the periphery of the upper part of the lower die base (2). The barrel bottom forming part (202) is placed at the bottom of the barrel die cavity part (102), and the barrel bottom forming part (202) and the barrel die cavity part (102) form a complete cavity.

5. The injection mold for polypropylene ice buckets according to claim 4, characterized in that: Both sides below the lower die base (2) are fixedly connected to the tops of the support blocks (3), and the bottoms of the support blocks (3) are fixedly connected to both sides above the lower template (4). The top plate assembly (5) is placed above the middle of the lower template (4), and there are gaps between both sides of the top plate assembly (5) and the inner sides of the support blocks (3).

6. The injection mold for polypropylene ice buckets according to claim 5, wherein: A plurality of slant ejector rods (6) are fixedly connected to the four corners of the top plate assembly (5), and the slant ejector rods (6) are paired two by two and placed at the four corners of the top plate assembly (5). At the same time, a top block (7) is fixedly connected between the upper parts of the two-by-two paired slant ejector rods (6), and the tops of the slant ejector rods (6) and the top block (7) are flush.

7. The injection mold for polypropylene ice buckets according to claim 6, characterized in that: The middle part of the slant ejector rod (6) passes through and is slidably connected inside the lower die base (2), and the upper part of the slant ejector rod (6) is inserted and slidably connected into the ejector part combination groove (10). The top block (7) is clamped into the upper part of the ejector part combination groove (10), and the top of the top block (7) is flush with the top of the convex part (101).

8. The injection mold for polypropylene ice buckets according to claim 7, characterized in that: A plurality of long ejector rods (8) are fixedly connected above the top plate assembly (5). A second through-hole part (12) is provided inside the lower die base (2), and the second through-hole part (12) is communicated with the first through-hole part (11).

9. The injection mold for polypropylene ice buckets according to claim 8, wherein: Part of the long ejector rod (8) is inserted into and slidably connected to the second through-hole part (12) and the first through-hole part (11) respectively, and the top of the long ejector rod (8) is flush with the top of the convex part (101).

10. The injection mold for polypropylene ice buckets according to claim 9, characterized in that: A plurality of short ejector rods (9) are fixedly connected to the middle part above the top plate assembly (5). A third through-hole part (13) is formed in the middle part of the lower die base (2), and the upper part of the short ejector rod (9) is inserted into and slidably connected to the third through-hole part (13). At the same time, the top of the short ejector rod (9) is flush with the bottom of the barrel bottom forming part (202).

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