Injection molding mold for pedal of large garbage can

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection molding mold for a pedal of a large garbage can. The injection mold comprises an upper mold plate, an upper mold base is arranged below the upper mold plate, injection port assemblies are inserted into the upper mold plate and the upper mold base, a lower mold base is pressed below the upper mold base, an embedded part below the upper mold base is inserted into a groove part above the lower mold base, an upper mold core groove is formed in the embedded part, and a lower mold core groove is formed in the groove part. Meanwhile, the upper mold core groove and the lower mold core groove are combined, a supporting block and a lower mold plate are arranged below the lower mold base, a supporting column is arranged above the lower mold plate, a top plate is arranged outside the supporting column in a sleeving mode, and a first ejector rod and a second ejector rod are arranged in the top plate. And by utilizing the arrangement of the first ejector rod and the second ejector rod, the combined parts are respectively ejected out of the cavity, so that the parts are prevented from being clamped, deformed or damaged by pulling, and the condition of secondary remodeling is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds and relates to an injection molding mold for a large-scale garbage can pedal. Background Art

[0002] An injection mold is a tool for producing plastic products, and it is also a tool for giving 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 the heated and melted plastic into the mold cavity by the injection molding machine, and after cooling and solidification, a molded product is obtained. The pedals of existing large trash cans are composed of multiple parts. During injection molding, the molds are divided for injection molding, and then assembled. This will result in a low degree of fit and increase the cost of the mold. When removing the parts after injection molding, the pedal structure is complex, which will cause jamming, deformation or pulling, etc., resulting in a high scrap rate, increased production costs and labor, and secondary reshaping. Therefore, in response to the above problems, a large trash can pedal injection molding mold is proposed. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a deep cavity thick wall garbage can injection mould.

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

[0005] A large trash can pedal injection molding mold, including an upper mold plate, an upper mold base is provided below the upper mold plate, and injection port assemblies are provided in the upper mold plate and the upper mold base, a lower mold base is pressed below the upper mold base, and a molding cavity is formed in the upper mold base and the lower mold base, support blocks are provided on both sides below the lower mold base, and the support blocks are provided on both sides of the lower mold plate below, a support column is provided in the middle of the lower mold plate, and a top plate is provided on the outer sleeve below the support column, a first push rod and a second push rod are respectively provided on the top plate, and the tops of the first push rod and the second push rod are inserted into the lower mold base.

[0006] In the above-mentioned large trash can pedal injection molding mold, an injection port assembly is inserted and fixedly connected in the middle of the upper template, the lower part of the upper template is fixedly connected to the top of the upper mold base, and an injection port is opened in the middle of the upper mold base, and the lower section of the injection port assembly is inserted into the injection port, and the inner wall of the injection port is tightly fitted with the outer wall of the lower section of the injection port assembly.

[0007] In the above-mentioned large trash can pedal injection molding mold, the upper mold base is fixedly connected to the embedded part below, and a first inner flow channel is opened in the middle of the embedded part, and the first inner flow channel is connected to the injection port. At the same time, the inner bottom of the first inner flow channel is flush with the bottom of the injection port and the bottom of the injection port assembly.

[0008] In the above-mentioned large trash can pedal injection molding mold, an upper mold core groove is opened in the embedded part, and the two sides of the upper mold core groove form the two parts of the groove cavity of the entire pedal, the first inner flow channel is placed between the two parts of the groove cavity of the upper mold core groove, and the first inner flow channels are connected with the two parts of the groove cavity of the upper mold core groove.

[0009] In the above-mentioned large trash can pedal injection molding die, a groove portion is opened on the upper part of the lower die seat, the sliding connection embedding portion is inserted into the groove portion, and the inner wall of the groove portion is tightly fitted with the outer wall of the embedding portion.

[0010] In the above-mentioned large trash can pedal injection molding mold, a lower mold core groove is opened in the groove part, and the two sides of the lower mold core groove form the groove cavities of two parts of the entire pedal, and the lower mold core groove and the upper mold core groove form the entire mold cavity.

[0011] In the above-mentioned large trash can pedal injection molding mold, a second inner flow channel is opened in the middle of the groove part, and the second inner flow channel is pressed and merged with the first inner flow channel, and the second inner flow channel is connected with the groove cavities of the two parts of the lower mold core groove.

[0012] In the above-mentioned large trash can pedal injection molding mold, the two sides below the lower mold base are fixedly connected to support blocks, and the support blocks are respectively fixedly connected to the two sides above the lower template. The middle part of the lower template is fixedly connected to multiple support columns, and the top of the support column is tightly fitted with the bottom of the lower mold base.

[0013] In the above-mentioned large trash can pedal injection molding mold, the support column outer shell is slidably connected to the top plate, and there is a gap between the bottom of the top plate and the top of the lower mold plate, and multiple first push rods and multiple second push rods are fixedly connected on both sides of the top plate.

[0014] In the above-mentioned large trash can pedal injection molding mold, multiple first socket parts and multiple second socket parts are respectively opened on both sides of the lower mold core groove, and the first push rod and the second push rod are respectively inserted into the first socket part and the second socket part for sliding connection, and the top of the first push rod and the second push rod are flush with the bottom of the lower mold core groove.

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

[0016] The utility model has an upper mold base below the upper mold base, and injection port components are inserted into the upper mold base and the upper mold base, a lower mold base is pressed under the upper mold base, and an embedded portion below the upper mold base is inserted into a groove portion above the lower mold base, an upper mold core groove is provided in the embedded portion, and a lower mold core groove is provided in the groove portion, and the upper mold core groove is merged with the lower mold core groove, a support block and a lower mold base are provided below the lower mold base, and a support column is provided above the lower mold base, a top plate arranged outside the support column, and a first ejector rod and a second ejector rod are respectively provided in the top plate, and a structure inside the mold can simultaneously obtain a pedal assembly, so that the pedal assembly has a high degree of fit, and the first ejector rod and the second ejector rod are provided to eject the assembly out of the cavity, thereby preventing the assembly from being stuck, deformed or pulled, and avoiding the situation of 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 front view schematic diagram of the bottom of the upper die seat of the utility model;

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

[0023] In the figure: 1. upper mold plate; 2. injection port assembly; 3. upper mold base; 31. embedding part; 32. injection port part; 33. first inner flow channel; 34. upper mold core groove; 4. lower mold base; 41. groove part; 42. second inner flow channel; 43. lower mold core groove; 44. first socket part; 45. second socket part; 5. support block; 6. lower mold plate; 7. top plate; 8. support column; 9. first ejector pin; 10. second ejector pin. DETAILED DESCRIPTION

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

[0025] like Figure 1-5As shown, a large trash can pedal injection molding mold includes an upper template 1, an upper mold base 3 is provided below the upper mold base 1, and an injection port assembly 2 is provided in the upper mold base 1 and the upper mold base 3, a lower mold base 4 is pressed below the upper mold base 3, and a molding cavity is formed in the upper mold base 3 and the lower mold base 4, support blocks 5 are provided on both sides below the lower mold base 4, and the support blocks 5 are provided on both sides of the lower mold base 6, a support column 8 is provided in the middle of the lower mold base 6, and a top plate 7 is provided on the outer sleeve below the support column 8, a first push rod 9 and a second push rod 10 are respectively provided on the top plate 7, and the first push rod 9 and the second push rod 10 are inserted into the lower mold base 4 above.

[0026] The injection port assembly 2 is inserted and fixedly connected in the middle of the upper template 1, and the top of the upper mold base 3 is fixedly connected to the lower part of the upper template 1. An injection port 32 is opened in the middle of the upper mold base 3, and the lower section of the injection port assembly 2 is inserted into the injection port 32, and the inner wall of the injection port 32 is tightly fitted with the outer wall of the lower section of the injection port assembly 2.

[0027] Furthermore, the upper mold base 3 is fixedly connected to the embedding part 31 below, and a first inner flow channel 33 is opened in the middle of the embedding part 31, and the first inner flow channel 33 is connected to the injection port 32, and the inner bottom of the first inner flow channel 33 is flush with the bottom of the injection port 32 and the bottom of the injection port assembly 2.

[0028] The injection port assembly 2 is inserted into the upper mold plate 1, and the upper mold base 3 below the upper mold plate 1 is inserted below the injection port assembly 2, so that the injection port assembly 2 injects injection liquid into the first inner flow channel 33 below the upper mold base 3 to form the entire mold interior.

[0029] Furthermore, an upper mold core groove 34 is opened in the embedded part 31, and the two sides of the upper mold core groove 34 form two partial groove cavities of the entire pedal, the first inner flow channel 33 is placed between the two partial groove cavities of the upper mold core groove 34, and the first inner flow channel 33 is connected with the two partial groove cavities of the upper mold core groove 34.

[0030] Two types of cavities are respectively opened on both sides of the upper mold core groove 34 , which are opened for the combination of pedals. After the injection liquid flows into the first inner flow channel 33 , it is separated from the first inner flow channel 33 and enters the two sides of the upper mold core groove 34 .

[0031] Furthermore, a groove portion 41 is opened on the upper portion of the lower mold base 4 , the sliding connection embedding portion 31 is inserted into the groove portion 41 , and the inner wall of the groove portion 41 is tightly fitted with the outer wall of the embedding portion 31 .

[0032] Furthermore, a lower mold core groove 43 is formed in the groove portion 41 , and two sides of the lower mold core groove 43 form two parts of the groove cavity of the entire pedal, and the lower mold core groove 43 and the upper mold core groove 34 form the entire mold cavity.

[0033] Furthermore, a second inner flow channel 42 is opened in the middle of the groove portion 41 , and the second inner flow channel 42 is pressed and merged with the first inner flow channel 33 , and the second inner flow channel 42 is connected to the groove cavities of two parts of the lower mold core groove 43 .

[0034] The embedded portion 31 below the upper mold base 3 is inserted into the groove portion 41 above the lower mold base 4. Since an upper mold core groove 34 is provided in the embedded portion 31 and a lower mold core groove 43 is provided in the groove portion 41, the upper mold core groove 34 and the lower mold core groove 43 are combined into a complete cavity. Similarly, the two parts of the pedal respectively opened on both sides of the lower mold core groove 43 are opposite to the two parts in the upper mold core groove 34.

[0035] The lower die base 4 is fixedly connected to support blocks 5 on both sides below, and the lower sides of the support blocks 5 are respectively fixedly connected to the upper sides of the lower mold plate 6. The middle of the lower mold plate 6 is fixedly connected to a plurality of support columns 8, and the top of the support column 8 is tightly fitted with the bottom of the lower die base 4.

[0036] Furthermore, the support column 8 is provided with a slidingly connected top plate 7, and there is a distance between the bottom of the top plate 7 and the top of the lower template 6, and the top plate 7 is fixedly connected to multiple first push rods 9 and multiple second push rods 10 on both sides.

[0037] A support block 5 and a lower mold plate 6 are provided below the lower mold base 4 so that the three are integrated into one body. When demoulding is performed, the three are immovable.

[0038] Furthermore, a plurality of first socket portions 44 and a plurality of second socket portions 45 are respectively provided on both sides of the lower mold core groove 43, and the first push rod 9 and the second push rod 10 are respectively inserted and slidably connected into the first socket portions 44 and the second socket portions 45, and the tops of the first push rod 9 and the second push rod 10 are flush with the bottom of the lower mold core groove 43.

[0039] The first ejector pin 9 and the second ejector pin 10 respectively arranged on the ejector plate 7 are opposite to the two parts in the cavity. When demolding, the first ejector pin 9 and the second ejector pin 10 respectively eject the corresponding parts of the product.

[0040] Working principle:

[0041] An upper mold base 3 is provided below the upper mold plate 1, and an injection port assembly 2 is inserted into both the upper mold plate 1 and the upper mold base 3. The injection port assembly 2 is used to inject injection liquid into the entire mold, and the lower mold base 4 is pressed under the upper mold base 3, and the embedded portion 31 below the upper mold base 3 is inserted into the groove portion 41 above the lower mold base 4, so that the interior is closed and molded inside. An upper mold core groove 34 is provided in the embedded portion 31, and a lower mold core groove 43 is provided in the groove portion 41. At the same time, both sides of the upper mold core groove 34 and the lower mold core groove 43 are divided into two parts, and two parts of the pedal combination, and then the first inner flow channel 33 and the second inner flow channel 42 are injected through the injection port assembly 2, so that the two sides of the interior are molded separately, and a There are support blocks 5 and lower templates 6, and support columns 8 are provided above the lower templates 6 to position and support its lower mold base 4. The top plate 7 arranged outside the support columns 8 can move back and forth between the lower mold base 4 and the lower template 6 under the action of external force. The first push rod 9 and the second push rod 10 are respectively provided in the top plate 7. The first push rod 9 and the second push rod 10 are inserted into the corresponding positions on both sides of the cavity. When demolding, the upper template 1 above is first disengaged from the upper mold base 3, so that the internal product parts are separated from the upper mold core groove 34, and then the external force acts on the bottom of the top plate 7 to make the top plate 7 rise. In this way, multiple first push rods 9 and multiple second push rods 10 can lift the product parts from the lower mold core groove 43 and take away the product parts.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.

[0043] Although this article uses more terms such as 1, upper mold plate; 2, injection port assembly; 3, upper mold base; 31, embedded part; 32, injection port; 33, first internal flow channel; 34, upper mold core groove; 4, lower mold base; 41, groove part; 42, second internal flow channel; 43, lower mold core groove; 44, first plug hole part; 45, second plug hole part; 5, support block; 6, lower mold plate; 7, top plate; 8, support column; 9, first ejector pin; 10, second ejector pin, 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 large trash can pedal injection molding mold, comprising an upper mold plate (1), characterized in that: An upper mold base (3) is provided below the upper mold plate (1), and an injection port assembly (2) is provided in both the upper mold plate (1) and the upper mold base (3); a lower mold base (4) is pressed below the upper mold base (3), and a molding cavity is formed in the upper mold base (3) and the lower mold base (4); support blocks (5) are provided on both sides below the lower mold base (4), and the support blocks (5) are provided on both sides of the lower mold plate (6); a support column (8) is provided in the middle of the lower mold plate (6), and a top plate (7) is provided on the outer sleeve below the support column (8); a first push rod (9) and a second push rod (10) are respectively provided on the top plate (7), and the tops of the first push rod (9) and the second push rod (10) are both inserted into the lower mold base (4).

2. The large trash can pedal injection molding mold according to claim 1, characterized in that: The middle of the upper mold plate (1) is inserted and fixedly connected to the injection port assembly (2), the lower part of the upper mold plate (1) is fixedly connected to the top of the upper mold base (3), and an injection port (32) is opened in the middle of the upper mold base (3), the lower section of the injection port assembly (2) is inserted into the injection port (32), and the inner wall of the injection port (32) is tightly fitted with the outer wall of the lower section of the injection port assembly (2).

3. The large trash can pedal injection molding mold according to claim 2, characterized in that: The upper mold base (3) is fixedly connected to an embedding portion (31) below, and a first inner flow channel (33) is provided in the middle of the embedding portion (31). The first inner flow channel (33) is connected to the injection port portion (32), and the bottom of the first inner flow channel (33) is flush with the bottom of the injection port portion (32) and the bottom of the injection port assembly (2).

4. The large trash can pedal injection molding mold according to claim 3, characterized in that: An upper mold core groove (34) is provided in the embedded portion (31), and the two sides of the upper mold core groove (34) form two partial groove cavities of the entire pedal, the first inner flow channel (33) is placed between the two partial groove cavities of the upper mold core groove (34), and the first inner flow channel (33) is connected to the two partial groove cavities of the upper mold core groove (34).

5. The large trash can pedal injection molding mold according to claim 4, characterized in that: A groove portion (41) is provided on the upper side of the lower die seat (4), the sliding connection embedding portion (31) is inserted into the groove portion (41), and the inner wall of the groove portion (41) is tightly fitted with the outer wall of the embedding portion (31).

6. The large trash can pedal injection molding mold according to claim 5, characterized in that: A lower mold core groove (43) is provided in the groove portion (41), and two sides of the lower mold core groove (43) form two groove cavities of the entire pedal, while the lower mold core groove (43) and the upper mold core groove (34) form the entire mold cavity.

7. The large trash can pedal injection molding mold according to claim 6, characterized in that: A second inner flow channel (42) is provided in the middle of the groove portion (41), and the second inner flow channel (42) is pressed and merged with the first inner flow channel (33), and the second inner flow channel (42) is connected to the groove cavities of two parts of the lower mold core groove (43).

8. The large trash can pedal injection molding mold according to claim 7, characterized in that: Both sides of the lower die base (4) are fixedly connected to support blocks (5), and the lower side of the support blocks (5) are respectively fixedly connected to both sides of the upper side of the lower mold plate (6). The middle part of the lower mold plate (6) is fixedly connected to a plurality of support columns (8), and the top of the support column (8) is tightly fitted with the bottom of the lower die base (4).

9. The large trash can pedal injection molding mold according to claim 8, characterized in that: The support column (8) is provided with a top plate (7) slidably connected thereto, and a distance is provided between the bottom of the top plate (7) and the top of the lower template (6), and a plurality of first top rods (9) and a plurality of second top rods (10) are fixedly connected to the two sides of the top plate (7).

10. The large trash can pedal injection molding mold according to claim 9, characterized in that: A plurality of first insertion holes (44) and a plurality of second insertion holes (45) are respectively provided on both sides of the lower mold core groove (43), and a first push rod (9) and a second push rod (10) are respectively inserted into the first insertion holes (44) and the second insertion holes (45) for sliding connection, and the tops of the first push rod (9) and the second push rod (10) are flush with the bottom of the lower mold core groove (43).

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