Municipal classified garbage can injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a municipal classification garbage can injection mold. The die comprises an upper die plate, a connecting plate is arranged below the upper die plate, a side die core block and an upper die core block are arranged in the lower portion of the connecting plate, a check block part is arranged between the connecting plate and an upper die base, and a positioning insertion block part is arranged at the bottom of the upper die base and inserted into the upper portion of a positioning ring groove part of a lower die base. A second middle mold core block and a lower mold core ring block are arranged in the lower mold base, a first middle mold core block is arranged above the second middle mold core block, and meanwhile the upper portion of the first middle mold core block and the upper portion of the second middle mold core block are inserted into a middle forming hole portion in the upper mold base. And the barrel wall is prevented from being deformed or damaged by pulling, 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 classified garbage bin. 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 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, an injection mold for municipal classified trash cans is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide an injection mold for a municipal classified trash can in view of the above problems.

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

[0005] A municipal classified trash can injection mold, including an upper mold plate, a connecting plate is provided below the upper mold plate, and injection port assemblies are provided in the center of the upper mold plate and the connecting plate, an upper mold base is provided below the connecting plate, and the bottom of the upper mold base is pressed with a lower mold base, a lower mold core ring block and a second middle mold core block are provided above the lower mold base, and the second middle mold core block is inserted in the lower mold core ring block below, a first middle mold core block is inserted in the top of the second middle mold core block, and the second middle mold core block and the first middle mold core block are both inserted in the upper mold base, an upper mold core block is provided above the first middle mold core block, and the upper mold core block is placed in the bottom of the connecting plate, and a side mold core block is provided on one side of the bottom of the connecting plate, and the side mold core block is inserted in one side of the middle part of the upper mold base below, and a lower mold plate is provided below the lower mold base.

[0006] In the above-mentioned municipal classified trash can injection mold, a connecting plate is fixedly connected to the lower part of the upper template, and an injection port assembly is inserted and fixedly connected to the middle part of the upper template. At the same time, the lower end of the injection port assembly is inserted into the connecting plate, and the bottom of the connecting plate is fixedly connected to the block part, and a flow channel groove part is opened in the block part.

[0007] In the above-mentioned municipal classified trash can injection mold, the side mold core block and the upper mold core block are fixedly connected in the runner groove portion, and the side mold core block and the upper mold core block are fixedly connected, the injection port assembly is inserted into the upper mold core block, and the bottom of the injection port assembly is flush with the bottom of the upper mold core block.

[0008] In the above-mentioned municipal classified trash can injection mold, a retaining groove is provided at the bottom of the upper mold base, and a fixed connecting retaining block is inserted into the retaining groove. A middle molding hole is provided in the middle of the upper mold base, and a side molding groove is provided on one side above the middle molding hole.

[0009] In the above-mentioned municipal classified trash can injection mold, the side mold core block has fixedly connected protrusions on both sides below, and the protrusions are inserted into the fixedly connected side molding grooves, the inner side of the side mold core block is placed on the side above the middle molding hole, and the upper mold core block is placed on the top of the middle molding hole.

[0010] In the above-mentioned municipal classified trash can injection mold, the bottom of the upper mold base is fixedly connected to the positioning block part, and the positioning block part is placed in a circle outside the middle molding hole part, and a positioning ring groove part is opened on the top of the lower mold base, and a sliding connection positioning block part is inserted above the positioning ring groove part.

[0011] In the above-mentioned municipal classified trash can injection mold, the bottom of the positioning ring groove is fixedly connected to the lower mold core ring block, and there is a gap between the top of the lower mold core ring block and the bottom of the positioning plug block, and the middle of the positioning ring groove is fixedly connected to the bottom of the second middle mold core block.

[0012] In the above-mentioned municipal classified trash can injection mold, a clamp hole is opened in the middle of the lower mold core ring block, and the inner wall of the clamp hole is tightly fitted with the outer wall of the second middle mold core block. A limiting groove is opened on the top of the second middle mold core block, and a limiting column is fixedly connected to the middle of the bottom of the limiting groove.

[0013] In the above-mentioned injection mold for the municipal classified trash can, the bottom of the first middle mold core block is fixedly connected to the limiting ring column part, and a limiting slot is provided in the limiting ring column part.

[0014] In the above-mentioned injection mold of the municipal classified trash can, the limiting ring column portion is inserted into the fixed connection limiting groove portion, and the limiting column is inserted into the fixed connection limiting slot.

[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 a side mold core block and an upper mold core block are provided inside the lower part of the connecting plate, and a stopper portion is provided between the connecting plate and the upper mold base, a positioning plug portion is provided at the bottom of the upper mold base and inserted into the upper part of the positioning ring groove portion of the lower mold base, a second middle mold core block and a lower mold core ring block are provided in the lower mold base, and a first middle mold core block is provided above the second middle mold core block, and at the same time, the upper parts of the first middle mold core block and the second middle mold core block are inserted into the middle forming hole portion in the upper mold base, and the combination of internal structures is utilized, and secondary demolding can be performed, thereby preventing the barrel wall from being deformed or pulled, reducing the scrap rate, reducing the cost and labor, and avoiding 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; 2. injection port assembly; 3. connecting plate; 31. block portion; 32. runner groove portion; 4. upper mold base; 41. block groove portion; 42. middle molding hole portion; 43. side molding groove; 44. positioning plug portion; 5. lower mold base; 51. positioning ring groove portion; 6. lower mold plate; 7. side mold core block; 71. raised portion; 8. upper mold core block; 9. first middle mold core block; 91. limiting ring column portion; 92. limiting slot; 10. lower mold core ring block; 11. clamp hole portion; 12. second middle mold core block; 13. limiting groove portion; 14. limiting column. DETAILED DESCRIPTION

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

[0025] like Figure 1-5 As shown, a municipal classified trash can injection mold comprises an upper mold plate 1, a connecting plate 3 is provided below the upper mold plate 1, and an injection port assembly 2 is provided in the center of the upper mold plate 1 and the connecting plate 3, an upper mold base 4 is provided below the connecting plate 3, and a lower mold base 5 is pressed at the bottom of the upper mold base 4, a lower mold core ring block 10 and a second middle mold core block 12 are provided above the lower mold base 5, and the second middle mold core block 12 is inserted in the lower mold core ring block 10 below, a first middle mold core block 9 is inserted in the top of the second middle mold core block 12, and the second middle mold core block 12 and the first middle mold core block 9 are both inserted in the upper mold base 4, an upper mold core block 8 is provided above the first middle mold core block 9, and the upper mold core block 8 is placed in the bottom of the connecting plate 3, and a side mold core block 7 is provided on one side of the bottom of the connecting plate 3, and the side mold core block 7 is inserted in one side of the middle part of the upper mold base 4 below, and a lower mold plate 6 is provided below the lower mold base 5.

[0026] The connecting plate 3 is fixedly connected through the lower part of the upper template 1, and the middle part of the upper template 1 is inserted and fixedly connected to the injection port assembly 2. At the same time, the lower end of the injection port assembly 2 penetrates into the connecting plate 3, and the bottom of the connecting plate 3 is fixedly connected to the stopper part 31, and a flow channel groove part 32 is opened in the stopper part 31.

[0027] Furthermore, the side mold core block 7 and the upper mold core block 8 are fixedly connected in the runner groove portion 32, and the side mold core block 7 and the upper mold core block 8 are fixedly connected, the injection port assembly 2 is inserted into the upper mold core block 8, and the bottom of the injection port assembly 2 is flush with the bottom of the upper mold core block 8.

[0028] Among them, after the upper template 1 is inserted into the injection port assembly 2, the injection liquid is injected into the injection port assembly 2 from the outside, so that the injection liquid enters the entire mold to form a product. Since a connecting plate 3 is provided under the upper template 1, and an upper mold core block 8 is provided in the connecting plate 3, the injection port assembly 2 is inserted all the way to the bottom of the upper mold core block 8. At this time, the bottom of the upper mold core block 8 is injected, so that the bottom molding cavity of the trash can is formed between the upper mold core block 8 and the top of the first middle mold core block 9 below.

[0029] Furthermore, a retaining groove 41 is formed at the bottom of the upper die base 4 , and the retaining groove 41 is inserted into the retaining block 31 for fixed connection. A middle forming hole 42 is formed in the middle of the upper die base 4 , and a side forming groove 43 is formed on one side above the middle forming hole 42 .

[0030] Furthermore, both sides of the lower side mold core block 7 are fixedly connected with protrusions 71, and the protrusions 71 are inserted into the fixedly connected side molding grooves 43, the inner side of the side mold core block 7 is placed on one side above the middle molding hole portion 42, and the lower side of the upper mold core block 8 is placed in the top of the middle molding hole portion 42.

[0031] Among them, there is a gap between the side mold core block 7 and the upper side of the middle molding hole part 42, and a molding cavity of the complex part of the side of the trash can is formed between the two. At the same time, due to the upper mold core block 8, the molding cavity of the molding part of the bottom of the trash can is complete.

[0032] Furthermore, a positioning block portion 44 is fixedly connected to the bottom of the upper mold base 4, and the positioning block portion 44 is placed in a circle outside the middle forming hole portion 42. A positioning ring groove portion 51 is opened inside the top of the lower mold base 5, and a slidingly connected positioning block portion 44 is inserted above the positioning ring groove portion 51.

[0033] After the upper mold base 4 is inserted into the positioning ring groove 51 above the lower mold base 5 by using the positioning insert 44 , the upper mold base 4 and the lower mold base 5 form an injection cavity, and the interior is sealed by the cooperation of the positioning insert 44 and the positioning ring groove 51 .

[0034] Furthermore, the bottom of the positioning ring groove 51 is fixedly connected to the lower mold core ring block 10 , and there is a gap between the top of the lower mold core ring block 10 and the bottom of the positioning plug block 44 , and the middle of the positioning ring groove 51 is fixedly connected to the bottom of the second middle mold core block 12 .

[0035] Furthermore, a clamp hole 11 is opened in the middle of the lower mold core ring block 10, and the inner wall of the clamp hole 11 is tightly fitted with the outer wall of the second middle mold core block 12. A limiting groove 13 is opened on the top of the second middle mold core block 12, and a limiting column 14 is fixedly connected to the middle of the bottom of the limiting groove 13.

[0036] Furthermore, the bottom of the first middle mold core block 9 is fixedly connected to a limiting circle column portion 91 , and a limiting slot 92 is provided in the limiting circle column portion 91 .

[0037] Furthermore, the limiting ring column portion 91 is inserted into the fixed connection limiting groove portion 13 , and the limiting column 14 is inserted into the fixed connection limiting slot 92 .

[0038] A second middle mold core block 12 and a lower mold core ring block 10 are provided in the lower mold base 5, and the first middle mold core block 9 is connected above the second middle mold core block 12. After the first middle mold core block 9 and the second middle mold core block 12 are inserted into the middle molding hole portion 42 in the upper mold base 4, a trash can wall molding cavity is formed between the insides, and a trash can mouth molding cavity is formed between the positioning block portion 44 below the upper mold base 4 and the lower mold core ring block 10 in the lower mold base 5.

[0039] Working principle:

[0040] A connecting plate 3 is provided below the upper template 1, and a side mold core block 7 and an upper mold core block 8 are provided inside the connecting plate 3. After the injection port assembly 2 is inserted into the upper template 1, the connecting plate 3 and the upper mold core block 8 in sequence, the injection liquid is injected from the bottom of the injection port assembly 2 to the lower part of the upper mold core block 8. At the same time, a stopper portion 31 is provided between the connecting plate 3 and the upper mold base 4. The stopper portion 31 is used to seal the connecting plate 3 and the upper mold base 4. A positioning plug portion 44 is provided at the bottom of the upper mold base 4 and inserted into the upper part of the positioning ring groove portion 51 of the lower mold base 5, so that the upper mold base 4 is pressed against the lower mold base 5. At the same time, after the two are combined and sealed, the injection molding work is carried out inside. A second middle mold core block 12 and a lower mold core ring block 10 are provided in the lower mold base 5, and a first middle mold core block 9 is provided above the second middle mold core block 12. The first middle mold core block 9 and the second middle mold core block 9 are connected. The block 12 is inserted into the middle forming hole 42 in the upper mold base 4, so that a barrel wall forming cavity is formed between the outer wall above the first middle mold core block 9 and the second middle mold core block 12 and the inner wall of the middle forming hole 42, and the bottom of the first middle mold core block 9, the bottom of the upper mold core block 8, and the side of the side mold core block 7 jointly form a barrel bottom forming cavity, and at the same time, the bottom of the positioning block portion 44 at the bottom of the upper mold base 4 and the upper part of the lower mold core ring block 10 form a barrel mouth forming cavity, so that a completed trash can molding cavity is formed, and when demolding, secondary demolding can be performed at the same time. Under external action, the upper mold plate 1 and the connecting plate 3 take away the upper mold core block 8 and the side mold core block 7, so that the complex situation at the bottom of the barrel leaks out, and then the upper mold base 4 is demolded, so that the entire barrel body is presented, and finally the product parts can be removed from the first middle mold core block 9 and the second middle mold core block 12.

[0041] 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.

[0042] Although this article uses more terms such as 1, upper mold plate; 2, injection port assembly; 3, connecting plate; 31, stopper; 32, runner groove; 4, upper mold base; 41, stopper groove; 42, middle molding hole; 43, side molding groove; 44, positioning plug block; 5, lower mold base; 51, positioning ring groove; 6, lower mold plate; 7, side mold core block; 71, raised part; 8, upper mold core block; 9, first middle mold core block; 91, limiting ring column; 92, limiting slot; 10, lower mold core ring block; 11, clamp hole; 12, second middle mold core block; 13, limiting groove; 14, limiting column, 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 municipal waste bin injection mold, comprising an upper mold plate (1), characterized in that: A connecting plate (3) is provided below the upper mold plate (1), and an injection port assembly (2) is provided at the center of the upper mold plate (1) and the connecting plate (3), an upper mold base (4) is provided below the connecting plate (3), and a lower mold base (5) is pressed on the bottom of the upper mold base (4), a lower mold core ring block (10) and a second middle mold core block (12) are provided inside the upper part of the lower mold base (5), and the lower part of the second middle mold core block (12) is inserted into the lower mold core ring block (10), and the top of the second middle mold core block (12) is inserted into the lower mold core ring block (10). A first middle mold core block (9) is provided at the bottom, and the second middle mold core block (12) and the first middle mold core block (9) are both inserted into the upper mold base (4); an upper mold core block (8) is provided above the first middle mold core block (9), and the upper mold core block (8) is placed in the bottom of the connecting plate (3); a side mold core block (7) is provided on one side of the bottom of the connecting plate (3); the side mold core block (7) is inserted into one side of the upper middle part of the upper mold base (4); and a lower mold plate (6) is provided below the lower mold base (5).

2. The municipal classified trash can injection mold according to claim 1, characterized in that: The lower part of the upper template (1) is fixedly connected to a connecting plate (3), and the middle part of the upper template (1) is inserted and fixedly connected to the injection port assembly (2), while the lower end of the injection port assembly (2) penetrates into the connecting plate (3), and the bottom of the connecting plate (3) is fixedly connected to a stopper portion (31), and a flow channel groove portion (32) is provided in the stopper portion (31).

3. The municipal classified trash can injection mold according to claim 2, characterized in that: The side mold core block (7) and the upper mold core block (8) are fixedly connected in the flow channel groove portion (32), and the side mold core block (7) and the upper mold core block (8) are fixedly connected, and the injection port assembly (2) is inserted into the upper mold core block (8), and the bottom of the injection port assembly (2) is flush with the bottom of the upper mold core block (8).

4. The municipal classified trash can injection mold according to claim 3, characterized in that: The upper die seat (4) has a retaining groove (41) at the bottom, and a retaining block (31) is inserted into the retaining groove (41) for fixed connection. The upper die seat (4) has a middle forming hole (42) at the middle, and a side forming groove (43) is provided on one side above the middle forming hole (42).

5. The municipal classified trash can injection mold according to claim 4, characterized in that: Both sides of the lower side mold core block (7) are fixedly connected with protrusions (71), and the protrusions (71) are inserted into the fixedly connected side molding grooves (43). The inner side of the side mold core block (7) is placed on the upper side of the middle molding hole (42), and the lower side of the upper mold core block (8) is placed on the top of the middle molding hole (42).

6. The municipal classified trash can injection mold according to claim 5, characterized in that: The bottom of the upper die seat (4) is fixedly connected to a positioning plug-in block (44), and the positioning plug-in block (44) is arranged in a circle outside the middle forming hole (42). A positioning ring groove (51) is opened on the top of the lower die seat (5), and a slidingly connected positioning plug-in block (44) is inserted above the positioning ring groove (51).

7. The municipal classified trash can injection mold according to claim 6, characterized in that: The bottom of the positioning ring groove (51) is fixedly connected to the lower mold core ring block (10), and there is a gap between the top of the lower mold core ring block (10) and the bottom of the positioning plug block (44). The middle of the positioning ring groove (51) is fixedly connected to the bottom of the second middle mold core block (12).

8. The municipal classified trash can injection mold according to claim 7, characterized in that: A clamping hole (11) is provided in the middle of the lower mold core ring block (10), and the inner wall of the clamping hole (11) is tightly fitted with the outer wall of the second middle mold core block (12); a limiting groove (13) is provided on the top of the second middle mold core block (12), and a limiting column (14) is fixedly connected to the middle of the bottom of the limiting groove (13).

9. The municipal classified trash can injection mold according to claim 8, characterized in that: The bottom of the first middle mold core block (9) is fixedly connected to a limiting ring column (91), and a limiting slot (92) is provided in the limiting ring column (91).

10. The municipal classified trash can injection mold according to claim 9, characterized in that: The limiting ring column portion (91) is inserted into the fixedly connected limiting groove portion (13), and the limiting column (14) is inserted into the fixedly connected limiting clamping groove (92).

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