Tray injection mold with two-time ejection and two-way core pulling functions

Abstract

The utility model relates to the technical field of molds, in particular to a tray injection mold with two-time ejection and two-way core pulling, which comprises a bottom mold, an injection molding part is arranged on the inner wall of the bottom mold, a first ejector plate, a second ejector plate and a third ejector plate are sequentially arranged on the base surface of the bottom mold, an inclined ejector is arranged on the base surface of the first ejector plate, and an inclined ejector is arranged on the base surface of the second ejector plate. The first oil cylinder is arranged to drive the first sliding block to move outwards, so that the inclined sliding block moves downwards, meanwhile, the three fixing rods fixed by the double oil cylinders play a role in fixing the inclined sliding block, the inclined sliding block is prevented from being driven by the first sliding block to move outwards, the double oil cylinder structure drives the three fixing rods to move to the outer side, and in the ejection process, the inclined sliding block is prevented from moving outwards. The three layers of ejector plates ascend simultaneously, the first ejector plate drives the elastic block to move upwards, after the elastic block ascends and encounters the inner inclined face of the guide block to be compressed into the groove, the first ejector plate stops ascending, and the push block is not blocked by the elastic block, the second ejector plate and the third ejector plate continue to ascend, and then complete ejection of the tray is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a tray injection mold with secondary ejection and bidirectional core pulling. Background Art

[0002] In the injection molding process, in order to mold plastic parts with complex geometric shapes, movable mold cores or other movable mold components are often required to construct these complex structures. However, the current mold system is often inefficient when performing disassembly operations and lacks the necessary convenience and practicality, which undoubtedly increases the production cycle and cost. In addition, when performing mold disassembly and maintenance operations, the height differences of operators may have a significant impact on construction efficiency and safety. When the mold design lacks height adjustment function and cannot adapt to the ergonomic needs of different operators, it may lead to forced construction in non-ideal postures, increase labor intensity, reduce work efficiency, and may cause occupational health problems.

[0003] Therefore, a pallet injection mold with secondary ejection and two-way core pulling is needed to improve the above problems. Utility Model Content

[0004] The utility model aims to provide a tray injection mold with secondary ejection and bidirectional core pulling to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tray injection mold with secondary ejection and bidirectional core pulling comprises a bottom mold, an injection molded part is arranged on the inner wall of the bottom mold, a first ejector plate, a second ejector plate and a third ejector plate are arranged in sequence on the base surface of the bottom mold, an inclined ejector is arranged on the base surface of the first ejector plate, and the top of the inclined ejector is fixed in the corresponding ejector block in the cavity of the bottom mold, a vertical ejector is arranged on the outer wall of the second ejector plate, and the third ejector plate fixes the vertical ejector, a slide rail is arranged on the opposite side walls of the bottom mold, a first oil cylinder is arranged on one side of the slide rail and on the outer wall of the bottom mold, a first slider is arranged on the three outer side walls of the bottom mold, and the first slider is connected to the outer wall of the first slider, an inclined slider is arranged on the outer wall of the first slider, a limiting rod is arranged on the outer wall of the bottom mold, and the limiting rod limits the inclined slider, a double oil cylinder is arranged on the outer wall of the bottom mold, and a fixing rod is installed at one end of the double oil cylinder, and one end of the fixing rod is connected to the outer wall of the inclined slider, and a lifting component is arranged on the outer wall of the bottom mold.

[0007] As a preferred solution of the utility model, it also includes a lifting component, which includes a connecting plate, the connecting plate is installed on the outer wall of the bottom mold, a scissor-type lift is installed at one end of the connecting plate, a base is provided at the bottom of the scissor-type lift, and a controller is provided on the outer wall of the base.

[0008] As a preferred solution of the utility model, a spring is provided on the side wall of the first ejector plate, and a spring block is provided at one end of the spring, a guide block is provided on the outer wall of the bottom mold, and a push block is provided on the inner wall of the guide block, the controller is respectively connected to the scissor-type lifter through wires and the connection method is electrical connection, one end of the vertical ejector passes through the mold cavity of the bottom mold and is pressed against the outer wall of the injection molded part, and the inclined ejectors are provided in multiple groups and are respectively located on the outer wall of the first ejector plate.

[0009] As a preferred solution of the utility model, limiting holes are evenly arranged on the outer wall of the third ejector plate, and the limiting holes are used to position the vertical ejectors.

[0010] As a preferred solution of the utility model, two groups of the first sliding blocks are provided and are respectively located on the outer wall of the bottom mold, and multiple groups of the vertical ejectors are provided and are respectively located on the outer wall of the second ejector plate.

[0011] As a preferred solution of the utility model, the connection mode of the inclined surfaces of the first sliding block and the inclined sliding block is a sliding connection, and the fixing rods are provided in multiple groups and are respectively located on the outer walls of the double oil cylinders.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, a fixed component in a two-way core-pulling tray injection mold is ejected twice, and the first oil cylinder is used to drive the first slider to move outward, so that the inclined slider moves downward. At the same time, the three fixing rods fixed by the double oil cylinders play a role in fixing the inclined slider to prevent the inclined slider from being driven outward by the first slider. The double oil cylinder structure drives the three fixing rods to move to the outside. In the process of ejection, the three-layer ejector plates rise at the same time, and the first ejector plate drives the spring block to move upward. When the spring block rises, it encounters the inner inclined surface of the guide block and is compressed into the groove. The first ejector plate stops rising. After the push block is not hindered by the spring block, the second ejector plate and the third ejector plate continue to rise, thereby realizing the complete ejection of the tray, which is beneficial to solve the problem that the current mold system is often inefficient during disassembly operations and lacks the necessary convenience and practicality, which undoubtedly increases the production cycle and cost.

[0014] By turning on the switch of the controller, the controller controls the scissor lift to operate, and the scissor lift moves, so that one end of the scissor lift lifts and lowers the bottom mold, and then moves the bottom mold to a suitable height to facilitate maintenance personnel to maintain the mold. The device is simpler to use and easy to operate, which is beneficial to solve the problem that the height difference of operators in performing mold disassembly and maintenance operations may have a significant impact on construction efficiency and safety. When the mold design lacks a height adjustment function and cannot adapt to the ergonomic needs of different operators, it may lead to forced construction in non-ideal postures, increase labor intensity, reduce work efficiency, and may cause occupational health problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the bottom mold structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall structure analysis of the utility model.

[0018] In the figure: 1. bottom mold; 2. injection molded part; 3. first ejector plate; 4. second ejector plate; 5. third ejector plate; 6. oblique ejector; 7. vertical ejector; 8. slide rail; 9. first oil cylinder; 10. first slide block; 11. oblique slide block; 12. limit rod; 13. double oil cylinder; 14. fixing rod; 15. lifting assembly; 1501. connecting plate; 1502. scissor lifter; 1503. base; 1504. controller; 16. spring; 17. spring block; 18. guide block; 19. push block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0021] A tray injection mold with secondary ejection and bidirectional core pulling comprises a bottom mold 1, an injection molded part 2 is arranged on the inner wall of the bottom mold 1, a first ejector plate 3, a second ejector plate 4 and a third ejector plate 5 are arranged on the base surface of the bottom mold 1 in sequence, an inclined ejector pin 6 is arranged on the base surface of the first ejector plate 3, and the top of the inclined ejector pin 6 is fixed in the corresponding ejector block in the cavity of the bottom mold 1, a vertical ejector pin 7 is arranged on the outer wall of the second ejector plate 4, and the third ejector plate 5 fixes the vertical ejector pin 7, and a slide rail 8 is arranged on the opposite side wall of the bottom mold 1, and one side of the slide rail 8 and located at the bottom mold 1 is provided with a first oil cylinder 9 on the outer wall, first slide blocks 10 are provided on the three outer side walls of the bottom mold 1, and the outer wall of the first slide block 10 is connected to the first oil cylinder 9, an inclined slide block 11 is provided on the outer wall of the first slide block 10, a limiting rod 12 is provided on the outer wall of the bottom mold 1, and the limiting rod 12 limits the inclined slide block 11, a double oil cylinder 13 is provided on the outer wall of the bottom mold 1, and a fixing rod 14 is installed at one end of the double oil cylinder 13, and one end of the fixing rod 14 is connected to the outer wall of the inclined slide block 11, and a lifting component 15 is provided on the outer wall of the bottom mold 1.

[0022] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 , also includes a lifting component 15, the lifting component 15 includes a connecting plate 1501, the connecting plate 1501 is installed on the outer wall of the bottom mold 1, a scissor-type lifter 1502 is installed at one end of the connecting plate 1501, a base 1503 is arranged at the bottom of the scissor-type lifter 1502, and a controller 1504 is arranged on the outer wall of the base 1503.

[0023] Furthermore, a spring 16 is provided on the side wall of the first ejector plate 3, and a spring block 17 is provided at one end of the spring 16, a guide block 18 is provided on the outer wall of the bottom mold 1, and a push block 19 is provided on the inner wall of the guide block 18, the controller 1504 is respectively connected to the scissor-type lifter 1502 through wires, and the connection method is electrical connection, so that the device is energized, one end of the vertical ejector 7 penetrates the mold cavity of the bottom mold 1 and presses on the outer wall of the injection molded part 2, the inclined ejector 6 is provided with multiple groups and is respectively located on the outer wall of the first ejector plate 3, the outer wall of the third ejector plate 5 is evenly provided with limiting holes, and the limiting holes position the vertical ejector 7, the first slider 10 is provided with two groups and is respectively located on the outer wall of the bottom mold 1, the vertical ejector 7 is provided with multiple groups and is respectively located on the outer wall of the second ejector plate 4, the inclined surfaces of the first slider 10 and the inclined slider 11 are connected in a sliding manner, and the fixing rod 14 is provided with multiple groups and is respectively located on the outer wall of the double oil cylinder 13.

[0024] The working process of the utility model is as follows: when the tray injection mold with secondary ejection and two-way core pulling designed by the present invention is working, the structure of the first slide block 10 and the inclined slide block 11 is designed on the three sides of the mold. After the injection molding is completed, the first slide block 10 is first driven to move outward by the first oil cylinder 9. Through the design of the inclined surfaces on the first slide block 10 and the inclined slide block 11, the inclined slide block 11 is moved downward, and the limit rod 12 plays a role in preventing the inclined slide block 11 from excessively falling. At the same time, the three fixing rods 14 fixed by the double oil cylinders 13 play a role in fixing the inclined slide block 11 to prevent the inclined slide block 11 from being driven outward by the first slide block 10. Due to the weight of the first slide block 10 itself, slide rails 8 are provided on the outer walls on both sides of the bottom mold 1 to assist in bearing the weight of the first slide block 10 moving outward. After the above-mentioned action is completed, the double oil cylinder 13 structure drives the three fixing rods 14 to move to the outside. The slide rails 8 also bear the function of auxiliary load-bearing. A first ejector plate 3, a second ejector plate 4 and a third ejector plate 5 are provided, and an inclined ejector pin 6 is hinged at the bottom of the first ejector plate 3. The top end of the first ejector plate 3 is fixed in the corresponding ejector block in the cavity of the bottom mold 1, and the vertical ejector pin 7 is fixed on the second ejector plate 4. The third ejector plate 5 is used to fix the direction of the vertical ejector pin 7. The vertical ejector pin 7 can directly penetrate the cavity of the bottom mold 1 and directly push against the bottom surface of the injection molded part 2. A secondary ejection device is provided on both sides of the bottom mold 1. During the ejection process, the three layers of ejector plates rise at the same time, and the first ejector plate 3 drives the elastic block 17 to move upward. When the elastic block 17 rises, it encounters the inner inclined surface of the guide block 18 and is compressed into the groove. The first ejector plate 3 stops rising, and after the push block 19 is not hindered by the elastic block 17, the second ejector plate 4 and the third ejector plate 5 continue to rise, thereby realizing the complete ejection of the tray, which is beneficial to solving the problem that the current mold system is often inefficient during disassembly operations and lacks the necessary convenience and practicality, which undoubtedly increases the production cycle and cost.

[0025] By turning on the switch of the controller 1504, the controller 1504 controls the scissor lift 1502 to operate, and the scissor lift 1502 moves, so that one end of the scissor lift 1502 lifts and lowers the bottom mold 1, and then the bottom mold 1 moves to a suitable height to facilitate maintenance personnel to maintain the mold. The device is simpler to use and easy to operate, which is beneficial to solve the problem that the height difference of operators in performing mold disassembly and maintenance operations may have a significant impact on construction efficiency and safety. When the mold design lacks a height adjustment function and cannot adapt to the ergonomic needs of different operators, it may lead to forced construction in non-ideal postures, increase labor intensity, reduce work efficiency, and may cause occupational health problems.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tray injection mold with secondary ejection and bidirectional core pulling, comprising a bottom mold (1), characterized in that: An injection molded part (2) is arranged on the inner wall of the bottom mold (1); a first ejector plate (3), a second ejector plate (4) and a third ejector plate (5) are arranged in sequence on the base surface of the bottom mold (1); an inclined ejector pin (6) is arranged on the base surface of the first ejector plate (3), and the top end of the inclined ejector pin (6) is fixed in a corresponding ejector block in the cavity of the bottom mold (1); a vertical ejector pin (7) is arranged on the outer wall of the second ejector plate (4), and the third ejector plate (5) fixes the vertical ejector pin (7); a slide rail (8) is arranged on the opposite side wall of the bottom mold (1); and a first oil cylinder ( 9), a first slide block (10) is arranged on each of the three outer side walls of the bottom mold (1), and the outer wall of the first slide block (10) is connected to a first oil cylinder (9), an inclined slide block (11) is arranged on the outer wall of the first slide block (10), a limiting rod (12) is arranged on the outer wall of the bottom mold (1), and the limiting rod (12) limits the inclined slide block (11), a double oil cylinder (13) is arranged on the outer wall of the bottom mold (1), and a fixing rod (14) is installed at one end of the double oil cylinder (13), and one end of the fixing rod (14) is connected to the outer wall of the inclined slide block (11), and a lifting component (15) is arranged on the outer wall of the bottom mold (1).

2. The tray injection mold with two-step ejection and two-way core pulling according to claim 1, characterized in that: The invention also comprises a lifting component (15), wherein the lifting component (15) comprises a connecting plate (1501), wherein the connecting plate (1501) is mounted on the outer wall of the bottom mold (1), a scissor-type lifter (1502) is mounted on one end of the connecting plate (1501), a base (1503) is arranged at the bottom of the scissor-type lifter (1502), and a controller (1504) is arranged on the outer wall of the base (1503).

3. The tray injection mold with two-step ejection and two-way core pulling according to claim 2, characterized in that: A spring (16) is provided on the side wall of the first ejector plate (3), and a spring block (17) is provided at one end of the spring (16); a guide block (18) is provided on the outer wall of the bottom mold (1), and a push block (19) is provided on the inner wall of the guide block (18); the controller (1504) is connected to the scissor-type lifter (1502) through wires and the connection method is electrical connection; one end of the vertical ejector (7) passes through the mold cavity of the bottom mold (1) and is pressed against the outer wall of the injection molded part (2); a plurality of groups of the inclined ejectors (6) are provided and are respectively located on the outer wall of the first ejector plate (3).

4. The tray injection mold with two-step ejection and two-way core pulling according to claim 1, characterized in that: Limiting holes are evenly arranged on the outer wall of the third ejector plate (5), and the limiting holes are used to position the vertical ejectors (7).

5. The tray injection mold with two-step ejection and two-way core pulling according to claim 1, characterized in that: The first sliding blocks (10) are provided in two groups and are respectively located on the outer wall of the bottom mold (1); the vertical ejector pins (7) are provided in multiple groups and are respectively located on the outer wall of the second ejector pin plate (4).

6. The tray injection mold with two-time ejection and two-way core pulling according to claim 1, characterized in that: The connection mode of the inclined surfaces of the first sliding block (10) and the inclined sliding block (11) is sliding connection, and the fixing rods (14) are provided in multiple groups and are respectively located on the outer walls of the double oil cylinders (13).

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