Thick-wall chopping board injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a thick-wall chopping board injection mold. The injection mold comprises an upper mold plate, an injection molding opening assembly is arranged below the middle of the upper mold plate, a runner column part below one side of the injection molding opening assembly is inserted into one side of an upper mold base, a lower mold base is arranged below the upper mold base, and an upper mold core groove formed in the bottom of the upper mold base is matched with a lower mold core groove formed in the upper portion of the lower mold base. A supporting block is arranged below the lower die base, a lower die plate is arranged below the supporting block, a supporting column arranged above the lower die plate is sleeved with a top plate assembly, and a top column and a top rod are arranged on the top plate assembly respectively. 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 thick-walled chopping board. Background Art

[0002] An injection mold is a tool for producing plastic products and is 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 solidifying, a formed product is obtained. When the existing thick-walled plastic chopping board is injection-molded, due to the relatively large thickness of the chopping board, it is easy to get stuck in the mold cavity during mold opening, and manual picking is required, resulting in damage to the edge of the product or deformation of the product, so that secondary reshaping is needed, increasing the labor intensity and production cost, and reducing the work efficiency and production rate. Therefore, an injection mold for a thick-walled chopping board is proposed for the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide an injection mold for a thick-walled chopping board for the above problems.

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

[0005] An injection mold for a thick-walled chopping board includes an upper template. On both sides below the upper template, connecting blocks are provided, and an injection port assembly is provided below the upper template. Below the connecting blocks, an upper mold base is provided, and one side of the upper mold base is inserted with the lower side of one side of the injection port assembly. Below the upper mold base, a lower mold base is provided, and a forming cavity is formed between the upper mold base and the lower mold base. At the same time, a drainage block is provided inside one side above the lower mold base. Below the lower mold base, a support block is provided, and below the support block, a lower template is provided. In the middle above the lower template, a support column is provided, and a top plate assembly is sleeved outside the support column. On both sides of the top plate assembly, ejector pins are provided, and the upper parts of the ejector pins are inserted into both sides inside the lower mold base. On the top plate assembly, ejector rods are provided, and the upper parts of the ejector rods are inserted into the lower mold base.

[0006] In the above injection mold for a thick-walled chopping board, on both sides below the upper template, the connecting blocks are fixedly connected, and on one side of the connecting blocks, one side of the injection port assembly is fixedly connected. At the same time, the other side of the injection port assembly is communicated with the middle part of the upper template. Below the connecting blocks, both sides of the top of the upper mold base are fixedly connected, and the top of the upper mold base is in close contact with the bottom of the injection port assembly.

[0007] In the above injection mold for a thick-walled chopping board, a runner groove is opened above the injection port assembly, and a runner column part is fixedly connected to the lower side of one side of the injection port assembly. At the same time, the inside of the runner column part is communicated with the runner groove and the middle part of the upper template. A jack part is opened on one side of the upper mold base, and the runner column part is inserted and fixedly connected inside the jack part. At the same time, the bottom of the runner column part is flush with the bottom of the jack part.

[0008] In the above-mentioned injection mold for a thick-walled chopping board, a core cavity is provided at the bottom of the upper mold base, and a core cavity is provided above the lower mold base. The lower part of the upper mold base is pressed against the upper part of the lower mold base, and a cavity is formed between the core cavity of the upper mold base and the core cavity of the lower mold base.

[0009] In the above-mentioned injection mold for a thick-walled chopping board, a clamping part groove is provided on one side of the lower mold base, and a drainage block is fixedly connected and clamped in the clamping part groove. At the same time, the upper plane of the drainage block is flush with the upper plane of the lower mold base. A drainage channel is provided above the drainage block, and the drainage channel is communicated with the core cavity of the lower mold base. At the same time, the upper part of the drainage channel corresponds to the bottom of the runner column part.

[0010] In the above-mentioned injection mold for a thick-walled chopping board, support blocks are fixedly connected to both sides below the lower mold base, and the bottoms of the support blocks are fixedly connected to both sides above the lower template. A plurality of support columns are fixedly connected to the middle of the lower template, and the tops of the support columns are closely attached to the bottom of the lower mold base.

[0011] In the above-mentioned injection mold for a thick-walled chopping board, a top plate assembly is sleeved and slidably connected outside the support column, and the top plate assembly is placed between the two support blocks. At the same time, there are gaps between both sides of the top plate assembly and the inner sides of the support blocks.

[0012] In the above-mentioned injection mold for a thick-walled chopping board, both sides of the top plate assembly are inserted and fixedly connected to the lower part of the ejector pin. The ejector pins are arranged in pairs on one side. The upper parts of the ejector pins are inserted and slidably connected to both sides of the lower mold base, and the tops of the ejector pins are closely attached to the bottom of the upper mold base.

[0013] In the above-mentioned injection mold for a thick-walled chopping board, a plurality of ejector rods are fixedly connected above the top plate assembly, and the ejector rods are divided into four groups and placed on both sides of the top plate assembly. At the same time, there are distances between the ejector rods and the support columns and the ejector pins.

[0014] In the above-mentioned injection mold for a thick-walled chopping board, the upper parts of the ejector rods are inserted and slidably connected into the lower mold base, and the tops of the ejector rods are flush with the bottom of the core cavity of the lower mold base.

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

[0016] In the present utility model, an injection port assembly is provided below the middle of the upper template, and the runner column part below one side of the injection port assembly is inserted into one side of the upper mold base. A lower mold base is provided below the upper mold base, and the core cavity provided at the bottom of the upper mold base cooperates with the core cavity provided above the lower mold base. Support blocks are provided below the lower mold base, and a lower template is provided below the support blocks. A top plate assembly is sleeved outside the support column provided above the lower template. Ejector pins and ejector rods are respectively provided on the top plate assembly. By using the cooperation of the ejector pins and the ejector rods provided inside the mold, the product parts can be demolded without manual picking, avoiding damage or deformation of the edges of the product parts, preventing the situation of secondary reshaping, reducing the labor intensity and production cost, and increasing the working efficiency and product yield.

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

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

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

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

[0021] Figure 4 is the top view schematic diagram above the lower die base of the present utility model;

[0022] Figure 5 is the overall side sectional view schematic diagram of the present utility model.

[0023] In the figure: 1, upper template; 2, connecting block; 3, upper die base; 301, upper die core groove; 302, jack portion; 4, lower die base; 401, lower die core groove; 402, clamping part groove; 5, support block; 6, lower template; 7, top plate assembly; 8, injection port assembly; 801, runner groove; 802, runner column portion; 9, drainage block; 901, drainage channel; 10, support column; 11, ejector pin; 12, ejector rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0025] As Figures 1-5 shown, a thick-walled chopping board injection mold includes an upper template 1. Connecting blocks 2 are provided on both sides below the upper template 1, and an injection port assembly 8 is provided below the upper template 1. The connecting blocks 2 are provided with an upper die base 3 below, and one side of the injection port assembly 8 is inserted below one side of the upper die base 3. A lower die base 4 is provided below the upper die base 3, and a forming cavity is formed between the upper die base 3 and the lower die base 4. At the same time, a drainage block 9 is provided inside one side above the lower die base 4. A support block 5 is provided below the lower die base 4, and a lower template 6 is provided below the support block 5. A support column 10 is provided in the middle above the lower template 6, and a top plate assembly 7 is sleeved outside the support column 10. Ejector pins 11 are provided on both sides of the top plate assembly 7, and the upper parts of the ejector pins 11 are inserted inside both sides of the lower die base 4. Ejector rods 12 are provided on the top plate assembly 7, and the upper parts of the ejector rods 12 are inserted inside the lower die base 4.

[0026] On both sides below the upper template 1, connection blocks 2 are fixedly connected. One side of the injection port assembly 8 is fixedly connected inside one of the connection blocks 2. At the same time, the other side of the injection port assembly 8 communicates with the middle part of the upper template 1. Below the connection block 2, both sides of the top of the upper die base 3 are fixedly connected. And the top of the upper die base 3 is in close contact with the bottom of the injection port assembly 8.

[0027] Further, a runner groove 801 is provided above the injection port assembly 8. One side below the injection port assembly 8 is fixedly connected with a runner column part 802. At the same time, the inside of the runner column part 802 communicates with the runner groove 801 and the middle part of the upper template 1. One side of the upper die base 3 is provided with an insertion hole part 302. And the runner column part 802 is inserted and fixedly connected inside the insertion hole part 302. At the same time, the bottom of the runner column part 802 is flush with the bottom of the insertion hole part 302.

[0028] Below the upper template 1, there is a connection block 2. And below the connection block 2, there is an upper die base 3. In this way, the upper die base 3, the connection block 2 and the upper template 1 form an integral structure of the upper part of the mold. Between the upper template 1 and the connection block 2, there is an injection port assembly 8. And the runner column part 802 below the injection port assembly 8 is inserted into one side of the upper die base 3. The injection liquid can be injected into the whole mold through the runner column part 802.

[0029] Further, an upper die core groove 301 is provided at the bottom of the upper die base 3. A lower die core groove 401 is provided above the lower die base 4. The bottom of the upper die base 3 is pressed against the top of the lower die base 4. And a cavity is formed between the upper die core groove 301 and the lower die core groove 401.

[0030] After the upper die core groove 301 and the lower die core groove 401 are closed, after the cavity inside is injected with injection liquid, the product parts are formed inside.

[0031] On one side of the lower die base 4, a clamping part groove 402 is provided. And a drainage block 9 is clamped and fixedly connected inside the clamping part groove 402. At the same time, the upper plane of the drainage block 9 is flush with the upper plane of the lower die base 4. Above the drainage block 9, a drainage channel 901 is provided. And the drainage channel 901 communicates with the inside of the lower die core groove 401. At the same time, the top of the drainage channel 901 corresponds to the bottom of the runner column part 802.

[0032] The drainage block 9 provided inside above the lower die base 4 is used to introduce the injection liquid into the lower die core groove 401, so that the cavity is formed inside, and the injection liquid is also prevented from overflowing.

[0033] On both sides below the lower die base 4, support blocks 5 are fixedly connected. And the bottom of the support blocks 5 is fixedly connected to both sides above the lower template 6. In the middle of the lower template 6, a plurality of support columns 10 are fixedly connected. And the tops of the support columns 10 are in close contact with the bottom of the lower die base 4.

[0034] Furthermore, a sliding connection top plate assembly 7 is sleeved outside the support column 10, and the top plate assembly 7 is placed between two support blocks 5. At the same time, there are gaps between the two side surfaces of the top plate assembly 7 and the inner sides of the support blocks 5.

[0035] Furthermore, both sides of the top plate assembly 7 are inserted and fixedly connected to the lower part of the ejector pins 11. The ejector pins 11 are arranged in pairs on one side. The upper parts of the ejector pins 11 are inserted and slidably connected to both sides of the lower die base 4, and the tops of the ejector pins 11 are in close contact with the bottom of the upper die base 3.

[0036] The ejector pins 11 provided on both sides of the top plate assembly 7 are inserted into the lower die base 4, and the tops of the ejector pins 11 abut against the bottom of the upper die base 3. Then, when the ejector pins 11 are pushed upward by the top plate assembly 7, the ejector pins 11 push open the upper die base 3 and the structures above it.

[0037] Furthermore, a plurality of ejector rods 12 are fixedly connected above the top plate assembly 7. The ejector rods 12 are divided into four groups and placed on both sides of the top plate assembly 7. At the same time, there are distances between the ejector rods 12 and the support column 10 and the ejector pins 11.

[0038] Furthermore, the upper parts of the ejector rods 12 are inserted and slidably connected into the lower die base 4, and the tops of the ejector rods 12 are flush with the bottom of the lower die core groove 401.

[0039] The ejector rods 12 are provided above the top plate assembly 7. The upper parts of the ejector rods 12 are inserted into the lower die core groove 401 of the lower die base 4. That is, the top plates of the ejector rods 12 are placed at the bottom of the product part. In this way, when the top plate assembly 7 rises, the ejector rods 12 can eject the product part.

[0040] Working principle:

[0041] An injection port assembly 8 is provided below the middle of the upper template 1, and the runner column part 802 below one side of the injection port assembly 8 is inserted into one side of the upper die base 3. In this way, under the action of the runner column part 802, the injection port assembly 8 can inject injection liquid into the interior of the mold. A lower die base 4 is provided below the upper die base 3, and the upper die core groove 301 provided at the bottom of the upper die base 3 cooperates with the lower die core groove 401 provided above the lower die base 4, and a cavity is formed between the two. The injection port assembly 8 injects injection liquid into the cavity. A support block 5 is provided below the lower die base 4, and a lower template 6 is provided below the support block 5, so that the lower die base 4, the support block 5 and the lower template 6 are integrated. A top plate assembly 7 is sleeved outside the support column 10 provided above the lower template 6. In this way, the top plate assembly 7 can move between the lower die base 4 and the lower template 6 under the action of an external force. A top column 11 and a top rod 12 are respectively provided on the top plate assembly 7, and the upper parts of the three are all inserted into the lower die base 4. When the mold is opened, the top plate assembly 7 rises, driving the top column 11 to jack up the upper die base 3 and the structures above it, so that the upper die core groove 301 in the upper die base 3 is disengaged from the product part. At the same time, the top of the top rod 12 is placed below the product part, so the top rod 12 ejects the product part from the lower die core groove 401, and the mold opening ends.

[0042] 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 ways to replace them, but will not deviate from the spirit of the present invention.

[0043] Although terms such as 1, upper template; 2, connecting block; 3, upper die base; 301, upper die core groove; 302, jacking hole part; 4, lower die base; 401, lower die core groove; 402, clamping part groove; 5, support block; 6, lower template; 7, top plate assembly; 8, injection port assembly; 801, runner groove; 802, runner column part; 9, diversion block; 901, diversion channel; 10, support column; 11, top column; 12, top rod are used more in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain 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 thick-wall chopping board injection mold, comprising an upper template (1), characterized in that: On both sides below the upper template (1), there are connecting blocks (2) provided, and an injection port assembly (8) is provided below the upper template (1). Below the connecting blocks (2), there is an upper die base (3), and one side of the injection port assembly (8) is inserted below one side of the upper die base (3). Below the upper die base (3), there is a lower die base (4), and a molding cavity is formed between the upper die base (3) and the lower die base (4). At the same time, a drainage block (9) is provided inside one side above the lower die base (4). Below the lower die base (4), there is a support block (5), and below the support block (5), there is a lower template (6). In the middle above the lower template (6), there is a support column (10), and a top plate assembly (7) is sleeved outside the support column (10). On both sides of the top plate assembly (7), there are ejector pins (11), and the upper parts of the ejector pins (11) are inserted inside both sides of the lower die base (4). On the top plate assembly (7), there are ejector rods (12), and the upper parts of the ejector rods (12) are inserted inside the lower die base (4).

2. The thick-walled chopping board injection mold according to claim 1, characterized in that: On both sides below the upper template (1), the connecting blocks (2) are fixedly connected, and one side of the injection port assembly (8) is fixedly connected inside one of the connecting blocks (2). At the same time, the other side of the injection port assembly (8) is communicated with the middle part of the upper template (1). Below the connecting blocks (2), the two sides of the top of the upper die base (3) are fixedly connected, and the top of the upper die base (3) is in close contact with the bottom of the injection port assembly (8).

3. The thick-walled chopping board injection mold according to claim 2, characterized in that: On the upper part of the injection port assembly (8), a runner groove (801) is opened, and one side below the injection port assembly (8) is fixedly connected with a runner column part (802). At the same time, the inside of the runner column part (802) is communicated with the runner groove (801) and the middle part of the upper template (1). On one side of the upper die base (3), a jack part (302) is opened, and the runner column part (802) is inserted and fixedly connected inside the jack part (302). At the same time, the bottom of the runner column part (802) is flush with the bottom of the jack part (302).

4. The thick-walled chopping board injection mold according to claim 3, characterized in that: On the bottom of the upper die base (3), an upper die core groove (301) is opened. On the upper part of the lower die base (4), a lower die core groove (401) is opened. The upper die base (3) is pressed against the upper part of the lower die base (4), and a cavity is formed between the upper die core groove (301) and the lower die core groove (401).

5. The thick-wall chopping board injection mold according to claim 4, characterized in that: On one side of the lower die base (4), a clamping part groove (402) is opened, and the drainage block (9) is clamped and fixedly connected inside the clamping part groove (402). At the same time, the upper plane of the drainage block (9) is flush with the upper plane of the lower die base (4). On the upper part of the drainage block (9), a drainage channel (901) is opened, and the drainage channel (901) is communicated with the inside of the lower die core groove (401). At the same time, the upper part of the drainage channel (901) corresponds to the bottom of the runner column part (802).

6. The thick-walled chopping board injection mold according to claim 5, characterized in that: On both sides below the lower die base (4), the support blocks (5) are fixedly connected, and the bottoms of the support blocks (5) are fixedly connected to the two sides above the lower template (6). In the middle of the lower template (6), a plurality of support columns (10) are fixedly connected, and the tops of the support columns (10) are in close contact with the bottom of the lower die base (4).

7. The thick-walled chopping board injection mold according to claim 6, characterized in that: A sliding connection top plate assembly (7) is sleeved outside the support column (10), and the top plate assembly (7) is placed between the two support blocks (5). At the same time, there are gaps between the two side surfaces of the top plate assembly (7) and the inner sides of the support blocks (5).

8. The thick-walled chopping board injection mold according to claim 7, characterized in that: Both sides of the top plate assembly (7) are inserted and fixedly connected to the lower part of the ejector pins (11). The ejector pins (11) are arranged in pairs on one side. The upper parts of the ejector pins (11) are inserted and slidably connected to both sides of the lower die base (4), and the tops of the ejector pins (11) are in close contact with the bottom of the upper die base (3).

9. The injection mold for thick-wall chopping boards according to claim 8, wherein: A plurality of ejector rods (12) are fixedly connected above the top plate assembly (7). The ejector rods (12) are divided into groups of four and placed on both sides of the top plate assembly (7). At the same time, there are distances between the ejector rods (12) and the support column (10) and the ejector pins (11).

10. The injection mold for thick-walled chopping boards according to claim 9, characterized in that: The upper parts of the ejector rods (12) are inserted and slidably connected into the lower die base (4), and the tops of the ejector rods (12) are flush with the bottom of the lower die core groove (401).

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