Municipal garbage can barrel injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold for a municipal garbage can barrel. The die comprises an upper die plate, a connecting plate is arranged below the upper die plate, an upper die base is arranged below the connecting plate, a protruding part arranged below the upper die base is inserted into a positioning ring groove part arranged in a lower die base, and a lower die core block and a second middle die core block are arranged in the positioning ring groove part of the lower die base. The handle mold core pieces are arranged on the two sides of the upper portion of the lower mold core block, the second middle mold core block is sleeved with the lower mold core block, the limiting insertion block at the bottom of the first middle mold core block is inserted into the upper portion of the second middle mold core block, and the upper mold core block is arranged on the upper portion of the first middle mold core block. The rejection rate is reduced, the cost and the labor force are reduced, and secondary remodeling is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds and relates to an injection mold for a municipal garbage can cylinder. Background Art

[0002] An injection mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. When existing cylindrical trash cans are produced, the injection molds used are relatively complex, and many of them are taken out when the material is hot, which will cause the barrel wall to deform or break, resulting in a high scrap rate, increased production costs and labor, and secondary reshaping. Therefore, in response to the above problems, a municipal trash can cylinder injection mold is proposed. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a municipal garbage can body injection mold.

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

[0005] A municipal garbage can cylinder injection mold comprises an upper mold plate, a connecting plate is provided below the upper mold plate, and an upper mold base is provided below the connecting plate, the upper mold base is inserted in the upper part of the lower mold base, and a lower mold plate is provided at the bottom of the lower mold base, a second middle mold core block is provided in the middle of the upper part of the lower mold base, and a lower mold core block is provided on the outer sleeve of the bottom of the second middle mold core block, and handle mold core pieces are provided on both sides of the upper part of the lower mold core block, the bottom of the first middle mold core block is inserted into the upper part of the second middle mold core block, and an upper mold core block is provided above the first middle mold core block, the upper part of the second middle mold core block and the first middle mold core block are both inserted in the upper mold base, and the bottom of the upper mold base is pressed with the lower mold core block and the handle mold core piece, and the upper mold core block is placed in the middle of the bottom of the connecting plate.

[0006] In the above-mentioned municipal trash can cylinder injection mold, the connecting plate is fixedly connected to the lower part of the upper template, and injection ports are provided in the middle of the upper template and the connecting plate, and the injection ports are connected to the inside of the connecting plate. The bottom of the connecting plate is fixedly connected to the block portion, and a flow channel groove portion is provided in the middle of the bottom of the connecting plate.

[0007] In the above-mentioned municipal trash can cylinder injection mold, the lower part of the connecting plate is fixedly connected to the upper part of the upper mold base, and a retaining groove is opened on the upper part of the upper mold base, and a fixedly connected retaining block is inserted into the retaining groove, a middle molding hole is opened in the middle of the upper mold base, and a protrusion is fixedly connected to the bottom of the upper mold base.

[0008] In the above-mentioned municipal trash can cylinder injection mold, the bottom of the upper mold base is pressed against the top of the lower mold base, and a positioning ring groove is opened in the lower mold base. The middle of the bottom of the positioning ring groove is fixedly connected to the second middle mold core block, and the top plane of the second middle mold core block exceeds the top plane of the lower mold base.

[0009] In the above-mentioned municipal trash can cylinder injection mold, the bottom of the positioning ring groove is fixedly connected to the lower mold core block, and the upper middle parts of both sides of the lower mold core block are fixedly connected to the handle mold core parts. A through hole part is opened in the middle of the lower mold core block, and the through hole part is sleeved on the outside of the lower part of the second middle mold core block. At the same time, there is a gap between the inner wall of the through hole part and the outer wall of the lower part of the second middle mold core block.

[0010] In the above-mentioned municipal trash can cylinder injection mold, the bottom of the upper mold base is fixedly connected to the raised part, and the upper mold base and the middle of the raised part are both provided with a middle molding hole, and both sides of the bottom of the raised part are provided with handle grooves.

[0011] In the above-mentioned municipal trash can body injection mold, the protrusion is inserted into the sliding connection positioning ring groove, and the bottom of the protrusion is pressed against the upper plane of the lower mold core block, the handle mold core piece is inserted into the handle groove, and there is a distance between the outer wall of the handle mold core piece and the inner wall of the handle groove.

[0012] In the above-mentioned municipal trash can cylinder injection mold, a slot portion is opened in the middle of the second middle mold core block, and the bottom of the first middle mold core block is fixedly connected to a limiting plug block, and the limiting plug block is inserted into the fixedly connected slot portion.

[0013] In the above-mentioned municipal trash can cylinder injection mold, the first middle mold core block and the second middle mold core block are both inserted into the middle molding hole portion, and there is a gap between the outer walls of the first middle mold core block and the second middle mold core block and the inner wall of the middle molding hole portion.

[0014] In the above-mentioned municipal trash can cylinder injection mold, the top of the first middle mold core block is flush with the top of the upper mold base, and the top of the first middle mold core block is fixedly connected to the upper mold core block. The upper mold core block is inserted into the flow channel groove, and there is a distance between the upper mold core block and the inner wall of the flow channel groove.

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

[0016] The utility model is provided with a connecting plate under the upper template, and an upper mold base is provided under the connecting plate, a protrusion provided under the upper mold base is inserted into a positioning ring groove provided inside the lower mold base, a lower mold core block and a second middle mold core block are provided in the positioning ring groove of the lower mold base, and handle mold core pieces are provided on both sides above the lower mold core block, and at the same time, the lower mold core block is sleeved on the outside of the second middle mold core block, a limiting plug block at the bottom of the first middle mold core block is inserted above the second middle mold core block, and an upper mold core block is provided above the first middle mold core block, and a combination of simple internal structures is utilized to prevent the barrel wall from being deformed or pulled, reduce the scrap rate, reduce the cost and labor, and avoid secondary reshaping.

[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 top view of the structure coordination at the top of the upper die seat of the utility model;

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

[0023] In the figure: 1. upper mold plate; 101. injection port; 2. connecting plate; 21. block portion; 22. runner groove portion; 3. upper mold base; 31. block groove portion; 32. middle molding hole portion; 4. lower mold base; 41. positioning ring groove portion; 5. lower mold plate; 6. upper mold core block; 7. first middle mold core block; 71. limiting plug block; 8. lower mold core block; 81. through hole portion; 9. second middle mold core block; 91. slot portion; 10. protrusion portion; 11. handle mold core piece; 12. handle groove portion. DETAILED DESCRIPTION

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

[0025] like Figure 1-5As shown, a municipal garbage can cylinder injection mold includes an upper mold plate 1, a connecting plate 2 is provided below the upper mold plate 1, and an upper mold base 3 is provided below the connecting plate 2, the upper mold base 3 is inserted in the upper part of the lower mold base 4, and a lower mold plate 5 is provided at the bottom of the lower mold base 4, a second middle mold core block 9 is provided in the middle of the upper part of the lower mold base 4, and a lower mold core block 8 is provided on the outer sleeve of the bottom of the second middle mold core block 9, and handle mold core pieces 11 are provided on both sides above the lower mold core block 8, the bottom of the first middle mold core block 7 is inserted into the upper part of the second middle mold core block 9, and an upper mold core block 6 is provided above the first middle mold core block 7, the upper part of the second middle mold core block 9 and the first middle mold core block 7 are both inserted in the upper mold base 3, and the bottom of the upper mold base 3 is pressed with the lower mold core block 8 and the handle mold core piece 11, and the upper mold core block 6 is placed in the middle of the bottom of the connecting plate 2.

[0026] The connecting plate 2 is fixedly connected through the lower part of the upper template 1, and an injection port 101 is opened in the middle of the upper template 1 and the connecting plate 2. At the same time, the injection port 101 is connected to the inside of the connecting plate 2, a stopper portion 21 is fixedly connected to the bottom of the connecting plate 2, and a flow channel groove portion 22 is opened in the middle of the bottom of the connecting plate 2.

[0027] Furthermore, the lower part of the connecting plate 2 is fixedly connected to the upper part of the upper mold base 3, and a retaining groove portion 31 is opened on the upper part of the upper mold base 3, and the retaining block portion 21 is inserted and fixedly connected into the retaining groove portion 31, a middle forming hole portion 32 is opened in the middle of the upper mold base 3, and the bottom of the upper mold base 3 is fixedly connected to the protrusion 10.

[0028] A connecting plate 2 and an upper mold base 3 are provided below the upper mold plate 1. The injection port 101 opened in the middle of the upper mold plate 1 is used to inject injection liquid into the connecting plate 2 and the upper mold base 3 to form the internal product.

[0029] The top of the lower die base 4 is pressed by the bottom of the upper die base 3, and a positioning ring groove 41 is opened in the lower die base 4. The middle of the bottom of the positioning ring groove 41 is fixedly connected to the second middle die core block 9, and the top plane of the second middle die core block 9 exceeds the top plane of the lower die base 4.

[0030] Furthermore, the bottom of the positioning ring groove 41 is fixedly connected to the lower mold core block 8, and the handle mold core pieces 11 are fixedly connected to the upper middle parts of both sides of the lower mold core block 8. A through hole portion 81 is opened in the middle of the lower mold core block 8, and the through hole portion 81 is sleeved on the outside of the lower part of the second middle mold core block 9. At the same time, there is a gap between the inner wall of the through hole portion 81 and the outer wall of the lower part of the second middle mold core block 9.

[0031] Furthermore, the bottom of the upper die base 3 is fixedly connected to the raised portion 10 , and a middle forming hole portion 32 is provided in the middle of the upper die base 3 and the raised portion 10 , and handle groove portions 12 are provided on both sides of the bottom of the raised portion 10 .

[0032] After the protrusion 10 provided below the upper die seat 3 is inserted into the positioning ring groove 41 in the lower die seat 4, the upper die seat 3 and the lower die seat 4 wrap and seal the interior, and the internal structure is combined into a moldable cavity.

[0033] Furthermore, the raised portion 10 is inserted into the sliding connection positioning ring groove 41 , and the bottom of the raised portion 10 is pressed against the upper plane of the lower mold core block 8 , the handle mold core piece 11 is inserted into the handle groove 12 , and there is a gap between the outer wall of the handle mold core piece 11 and the inner wall of the handle groove 12 .

[0034] Furthermore, a slot portion 91 is opened in the middle of the second middle mold core block 9 , and a limiting plug block 71 is fixedly connected to the bottom of the first middle mold core block 7 , and the limiting plug block 71 is inserted into the fixedly connected slot portion 91 .

[0035] Furthermore, the upper parts of the first middle mold core block 7 and the second middle mold core block 9 are both inserted into the middle molding hole portion 32 , and there is a gap between the outer walls of the first middle mold core block 7 and the second middle mold core block 9 and the inner wall of the middle molding hole portion 32 .

[0036] Furthermore, the top of the first middle mold core block 7 is flush with the top of the upper mold base 3, and the top of the first middle mold core block 7 is fixedly connected to the upper mold core block 6, the upper mold core block 6 is inserted into the flow channel groove 22, and there is a distance between the upper mold core block 6 and the inner wall of the flow channel groove 22.

[0037] A lower mold core block 8 and a second middle mold core block 9 are provided in the lower mold base 4, and a first middle mold core block 7 and an upper mold core block 6 are provided above the second middle mold core block 9, wherein the second middle mold core block 9 and the first middle mold core block 7 are integrated into one and inserted into the upper mold base 3 to form a middle cavity of the cylinder body, and a cavity at the cylinder mouth is formed below the upper mold base 3 and the lower mold core block 8, and a cylinder bottom cavity is formed between the upper mold core block 6 and the connecting plate 2.

[0038] Working principle:

[0039] A connecting plate 2 is provided below the upper mold plate 1, and an upper mold base 3 is provided below the connecting plate 2. Since an injection port 101 is provided at the middle of the upper mold plate 1, the injection port 101 injects injection liquid into the connecting plate 2 and the upper mold base 3. The protrusion 10 provided below the upper mold base 3 is inserted into the positioning ring groove 41 provided inside the lower mold base 4, so that the upper mold base 3 and the lower mold base 4 are merged, the interior is sealed, and the injection molding work is performed inside. A lower mold core block 8 and a second middle mold core block 9 are provided in the positioning ring groove 41 of the lower mold base 4, and handle mold core pieces 11 are provided on both sides above the lower mold core block 8. At the same time, the lower mold core block 8 is sleeved on the outside of the second middle mold core block 9 to form a cylinder mouth between the two, and then in the second middle mold core block 9, a limiting plug block 71 at the bottom of the first middle mold core block 7 is inserted above the upper mold core block 7, so that the two are integrated, and an upper mold core block 6 is arranged above the first middle mold core block 7. When the mold is closed, the second middle mold core block 9, the first middle mold core block 7 and the upper mold core block 6 are all inserted into the middle molding hole portion 32 in the upper mold base 3, but the upper mold core block 6 is placed in the flow channel groove portion 22 at the bottom of the connecting plate 2 after passing through, so that a completed cylinder molding cavity is formed in the middle. After the injection molding is completed, the external force can be used to disengage the upper mold base 3, the connecting plate 2 and the upper mold plate 1. At this time, the completed cylinder is sleeved on the outside of the upper mold core block 6, the first middle mold core block 7 and the second middle mold core block 9, and the cylinder mouth is at the lower mold core block 8, so that the molded part can be removed directly.

[0040] 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.

[0041] Although this article uses more terms such as 1, equipment base; 2, operating table; 3, first support frame; 4, second support frame; 5, curved column; 6, fastening steel sheet; 7, support seat; 71, built-in space; 72, side opening; 73, arc-shaped through hole; 8, rotating column; 9, first angle gear; 10, second angle gear; 11, worm; 12, worm wheel; 13, clamping assembly; 14, pin column; 15, locking screw; 16, motor, 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 municipal trash can body injection mold, comprising an upper mold plate (1), characterized in that: A connecting plate (2) is provided below the upper mold plate (1), and an upper mold base (3) is provided below the connecting plate (2). The lower part of the upper mold base (3) is inserted into the upper part of the lower mold base (4), and a lower mold plate (5) is provided at the bottom of the lower mold base (4). A second middle mold core block (9) is provided in the middle of the upper part of the lower mold base (4), and a lower mold core block (8) is provided on the outer sleeve of the bottom of the second middle mold core block (9), and handle mold core pieces (11) are provided on both sides of the upper part of the lower mold core block (8). The lower part of the second middle mold core block (9) is inserted into the bottom of the first middle mold core block (7), and an upper mold core block (6) is provided above the first middle mold core block (7). The upper part of the second middle mold core block (9) and the first middle mold core block (7) are both inserted into the upper mold base (3), and the bottom of the upper mold base (3) is pressed together with the lower mold core block (8) and the handle mold core piece (11), and the upper mold core block (6) is placed in the middle of the bottom of the connecting plate (2).

2. The municipal trash can body injection mold according to claim 1, characterized in that: The upper template (1) is fixedly connected to the connecting plate (2) at the bottom, and both the upper template (1) and the connecting plate (2) are provided with injection ports (101) in the middle, and the injection ports (101) are connected to the inside of the connecting plate (2). The bottom of the connecting plate (2) is fixedly connected to a stopper portion (21), and a flow channel portion (22) is provided in the middle of the bottom of the connecting plate (2).

3. The municipal trash can body injection mold according to claim 2, characterized in that: The lower part of the connecting plate (2) is fixedly connected to the upper part of the upper die base (3), and a retaining groove (31) is provided on the upper part of the upper die base (3), a retaining block (21) is inserted and fixedly connected into the retaining groove (31), a middle forming hole (32) is provided in the middle of the upper die base (3), and the bottom of the upper die base (3) is fixedly connected to the protruding part (10).

4. The municipal trash can body injection mold according to claim 3, characterized in that: The bottom of the upper die seat (3) is pressed against the top of the lower die seat (4), and a positioning ring groove (41) is provided in the lower die seat (4). The middle of the bottom of the positioning ring groove (41) is fixedly connected to the second middle die core block (9), and the top plane of the second middle die core block (9) exceeds the top plane of the lower die seat (4).

5. The municipal trash can body injection mold according to claim 4, characterized in that: The bottom of the positioning ring groove (41) is fixedly connected to the lower mold core block (8), and the upper middle parts of both sides of the lower mold core block (8) are fixedly connected to the handle mold core pieces (11). A through hole (81) is opened in the middle of the lower mold core block (8), and the through hole (81) is sleeved outside the lower part of the second middle mold core block (9), and a gap is formed between the inner wall of the through hole (81) and the outer wall of the lower part of the second middle mold core block (9).

6. The municipal trash can cylinder injection mold according to claim 5, characterized in that: The bottom of the upper die seat (3) is fixedly connected to the raised portion (10), and a middle forming hole portion (32) is provided in the middle of the upper die seat (3) and the raised portion (10), and handle groove portions (12) are provided on both sides of the bottom of the raised portion (10).

7. The municipal trash can body injection mold according to claim 6, characterized in that: The protrusion (10) is inserted into the sliding connection positioning ring groove (41), and the bottom of the protrusion (10) is pressed against the upper plane of the lower mold core block (8), and the handle mold core piece (11) is inserted into the handle groove (12), and there is a distance between the outer wall of the handle mold core piece (11) and the inner wall of the handle groove (12).

8. The municipal trash can body injection mold according to claim 7, characterized in that: A slot portion (91) is provided in the middle of the second middle mold core block (9), and a limiting plug block (71) is fixedly connected to the bottom of the first middle mold core block (7), and the limiting plug block (71) is inserted into the fixedly connected slot portion (91).

9. The municipal trash can cylinder injection mold according to claim 8, characterized in that: The first middle mold core block (7) and the second middle mold core block (9) are both inserted into the middle molding hole portion (32) at their tops, and there is a gap between the outer walls of the first middle mold core block (7) and the second middle mold core block (9) and the inner wall of the middle molding hole portion (32).

10. The municipal trash can body injection mold according to claim 9, characterized in that: The top of the first middle mold core block (7) is flush with the top of the upper mold base (3), and the top of the first middle mold core block (7) is fixedly connected to the upper mold core block (6), the upper mold core block (6) is inserted into the flow channel groove portion (22), and there is a distance between the upper mold core block (6) and the inner wall of the flow channel groove portion (22).

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