A secondary ejection mechanism

Abstract

The utility model discloses a secondary ejection mechanism, including a vertical pole, a guide sleeve, an ejector plate, a lower fixed plate, ejector plate one, ejector plate two, ejector plate three and ejector plate four, the guide sleeve is sleeved on the vertical pole, the top of the guide sleeve passes through ejector plate one, ejector plate two, ejector plate three and ejector plate four, the bottom of the outer side of the guide sleeve is connected with a limit nut through a threaded connection, a spring is fixedly connected to the middle position of the top of the limit nut, a limit sleeve is sleeved on the outer side of the spring, and a spring limit step is fixedly arranged near the middle position in the limit sleeve. The vertical pole of the secondary ejection mechanism is fixedly connected between the ejector plate and the lower fixed plate by screws, ensuring the stability of the overall structure, the cooperation of the guide sleeve and the vertical pole, and the arrangement of the outer sleeve and the limit sleeve, all enhance the stability of the mechanism during operation, making the ejection process more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary ejection mechanisms, in particular to a secondary ejection mechanism. Background Art

[0002] The secondary ejection mechanism is a common technology in plastic mold design. After the first ejection of the product, if the finished product is still in the mold cavity or cannot fall off automatically, it needs to be ejected again to help the finished product out of the mold. The main purpose of this mechanism is to improve the efficiency of the mold and the reliability of the finished product ejection.

[0003] Some existing secondary ejection mechanisms have the following disadvantages:

[0004] 1. Unstable structure: The traditional secondary ejection mechanism may not be stable enough in terms of structural design and component connection, resulting in shaking or instability during operation.

[0005] 2. Imprecise ejection control: The existing secondary ejection mechanism may lack flexible segmented control functions and cannot accurately control the ejection sequence and distance of different ejector plates, making it difficult to meet the ejection requirements of complex molds.

[0006] 3. The design of movable parts is not clever enough: Traditional movable parts may lack clever design, the installation process is cumbersome, and they may not work stably during the mold ejection process, affecting the ejection effect.

[0007] 4. Imperfect limit mechanism: The existing secondary ejection mechanism may have defects in the limit design, which cannot effectively prevent the moving parts from falling off or excessive movement, thereby reducing the safety and stability of the ejection process.

[0008] 5. Difficulty in maintenance and servicing: The traditional secondary ejection mechanism may be difficult to maintain and service due to its complex structure or inconvenient disassembly of component connections, which increases the cost of use and maintenance time. Utility Model Content

[0009] The purpose of the utility model is to provide a secondary ejection mechanism to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a secondary ejection mechanism, comprising a vertical rod, a guide sleeve, a ejector plate, a lower fixed plate, an ejector plate 1, an ejector plate 2, an ejector plate 3 and an ejector plate 4, the guide sleeve is arranged on the vertical rod, the top of the guide sleeve passes through the ejector plate 1, the ejector plate 2, the ejector plate 3 and the ejector plate 4, the bottom of the outer side of the guide sleeve is connected to a limiting nut through an opened threaded connection, a spring is fixedly connected to the middle position of the top of the limiting nut, a limiting sleeve is sleeved on the outer side of the spring, a spring limiting step is fixedly arranged at the middle position inside the limiting sleeve, and the bottom of the limiting sleeve contacts the limiting nut, an outer sleeve is arranged on the top of the limiting sleeve, a retreat groove 1 is opened at the bottom position of the vertical rod, a movable groove 1 is opened at the bottom position of the guide sleeve, a travel limiting step is arranged at the position below the movable groove 1, and a movable part is movably arranged in the movable groove 1.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Stable structure and reliable operation: The vertical pole of the device is fixedly connected between the top plate and the lower fixed plate by screws, ensuring the stability of the overall structure. The coordination between the guide sleeve and the vertical pole, as well as the setting of the outer sleeve and the limit sleeve, all enhance the stability of the mechanism during operation and make the ejection process more reliable.

[0013] Second, the ejection process is controlled in sections, and the operation is flexible: The device realizes the function of secondary ejection by designing four ejector plates and matching parts. This makes the operation process more flexible, and can accurately control the ejection sequence and distance of different ejector plates according to the needs of the product structure to meet the ejection requirements of complex molds.

[0014] 3. The movable parts are cleverly designed and work stably: The design of the movable parts fully considers various situations during the ejection process of the mold. The magnets in the magnet slots make the installation of the movable parts more convenient. At the same time, the movable parts can move between the vertical rod and the groove of the outer sleeve at different ejection stages to achieve different ejection effects.

[0015] 4. The limiting mechanism is reasonably designed and highly safe: through the cooperation of the limiting nut, spring and limiting sleeve, the movement of the movable parts is accurately limited, avoiding the falling off or excessive movement of the movable parts during the ejection process, thereby ensuring the safety and stability of the ejection process.

[0016] 5. Easy maintenance: The structure of the whole device is clear, and the connection between the components is firm and reliable, which makes the device more convenient to maintain and service. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional schematic diagram of the utility model in the mold closing state;

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model in the first mold opening state;

[0019] Figure 3 It is a cross-sectional schematic diagram of the second mold opening state of the utility model;

[0020] Figure 4 for Figure 1 A partial enlarged schematic diagram in the middle;

[0021] Figure 5 It is a three-dimensional structural diagram of the utility model;

[0022] Figure 6 It is a three-dimensional schematic diagram of the vertical pole and the guide sleeve of the utility model;

[0023] Figure 7 It is a partial exploded schematic diagram of the guide sleeve, outer sleeve and limit sleeve of the utility model;

[0024] Figure 8 It is a three-dimensional schematic diagram of the limiting sleeve, limiting nut and spring of the utility model.

[0025] In the figure: 1. vertical pole; 2. guide sleeve; 3. fixed block 1; 4. outer sleeve; 5. fixed block 2; 6. limit sleeve; 7. limit nut; 8. spring; 9. movable part; 10. magnet slot; 11. ejector plate; 12. fixed plate; 13. ejector plate 1; 14. ejector plate 2; 15. ejector plate 3; 16. ejector plate 4; 17. retreat slot 1; 18. movable slot 1; 19. travel limit step. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-8The utility model provides a technical solution: a secondary ejection mechanism, including a vertical rod 1, a guide sleeve 2, an ejector plate 11, a lower fixing plate 12, an ejector plate 1 13, an ejector plate 2 14, an ejector plate 3 15 and an ejector plate 4 16, the guide sleeve 2 is sleeved on the vertical rod 1, the top of the guide sleeve 2 passes through the ejector plate 1 13, the ejector plate 2 14, the ejector plate 3 15 and the ejector plate 4 16, the bottom of the outer side of the guide sleeve 2 is connected to the limit nut 7 through the threaded connection, the middle of the top of the limit nut 7 A spring 8 is fixedly connected to the intermediate position, a limit sleeve 6 is sleeved on the outer side of the spring 8, a spring limit step is fixedly set at the middle position inside the limit sleeve 6, and the bottom of the limit sleeve 6 is in contact with the limit nut 7, and an outer sleeve 4 is set on the top of the limit sleeve 6, a retreat groove 17 is opened at the bottom position of the vertical pole 1, a movable groove 18 is opened at the bottom position of the guide sleeve 2, a travel limit step 19 is set at the position below the movable groove 18, and a movable part 9 is movably set in the movable groove 18.

[0028] The top and bottom of the vertical pole 1 are fixedly connected to the top plate 11 and the lower fixed plate 12 respectively by screws, the outer sleeve 4 is fixedly connected to the ejector plate 3 15 by the fixing block 2 5, the guide sleeve 2 is fixedly connected to the ejector plate 1 13 by the fixing block 1 3, and the top position of the guide sleeve 2 and the bottom position of the outer sleeve 4 are respectively provided with card slots matching the fixing block 1 3 and the fixing block 2 5.

[0029] The ejector plate 1 13 is fixedly connected to the ejector plate 2 14 , and the ejector plate 3 15 is fixedly connected to the ejector plate 4 16 .

[0030] A magnet groove 10 is provided on the top of the movable member 9 , and a magnet is placed in the magnet groove 10 .

[0031] A second recess matching the movable part 9 is provided at the bottom of the outer sleeve 4 .

[0032] The outer sleeve 4 and the limiting sleeve 6 are both sleeved on the guide sleeve 2 .

[0033] The vertical pole 1 is fixed to the top plate 11 and the lower fixed plate 12 by screws. The guide sleeve 2 is provided with a travel limit step 19 for the movement of the limit sleeve 6. The lower end of the guide sleeve 2 is also provided with teeth to lock and fix the limit nut 7 together. The limit nut 7 limits the movement stroke of the limit sleeve 6. The limit sleeve 6 is provided with a spring limit step. The limit sleeve 6 is mainly used to prevent the retreating movable part 9 from falling out when it moves inward. The outer sleeve 4 is provided with a retreat groove for the movable part 9, and the magnet in the magnet groove 10 is for the movable part 9 to be easily installed.

[0034] Mould closing status: (such as Figure 1 When the mold is in the closed state, the movable part 9 is retreated to the second retreat groove of the outer sleeve 4, and the spring 8 is in a compressed state;

[0035] Mold opening status: (such as Figure 2 As shown in the figure, the ejector plate is ejected for the first time, and the ejector plate 1 13, the ejector plate 2 14, the ejector plate 3 15 and the ejector plate 4 16 together with the entire vertical rod 1 and the external guide sleeve 2, the outer sleeve 4 and the limit sleeve 6 move upward. When they move to a certain position, the movable part 9 retreats into the retreat groove 17 of the vertical rod 1;

[0036] Mold opening status: (such as Figure 3 (as shown) the ejector plate is ejected for the second time, the ejector plate three 15 and the ejector plate four 16 together with the outer sleeve 4 and the fixed block two 5 move upward to the desired position, and the limit sleeve 6 moves upward under the elastic force of the spring 8, and the limit sleeve 6 protects the movable part 9 from moving outward.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although 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 secondary ejection mechanism, comprising a vertical rod (1), a guide sleeve (2), an ejector plate (11), a lower fixing plate (12), an ejector plate 1 (13), an ejector plate 2 (14), an ejector plate 3 (15) and an ejector plate 4 (16), characterized in that: The guide sleeve (2) is sleeved on the vertical pole (1), the top of the guide sleeve (2) passes through the ejector plate 1 (13), the ejector plate 2 (14), the ejector plate 3 (15) and the ejector plate 4 (16), the bottom of the outer side of the guide sleeve (2) is connected to the limit nut (7) through the threaded connection, the middle position of the top of the limit nut (7) is fixedly connected with a spring (8), the outer side of the spring (8) is sleeved with a limit sleeve (6), the inner side of the limit sleeve (6) is close to the middle position A spring limit step is fixedly arranged, and the bottom of the limit sleeve (6) contacts the limit nut (7), the top of the limit sleeve (6) is provided with an outer sleeve (4), the vertical rod (1) is provided with a retreat groove (17) near the bottom, the guide sleeve (2) is provided with a movable groove (18) near the bottom, the guide sleeve (2) is provided with a travel limit step (19) at a position below the movable groove (18), and a movable part (9) is movably arranged in the movable groove (18).

2. A secondary ejection mechanism according to claim 1, characterized in that: The top and bottom of the vertical rod (1) are fixedly connected to the top plate (11) and the lower fixed plate (12) respectively by screws, the outer sleeve (4) is fixedly connected to the ejector plate three (15) by the second fixing block (5), the guide sleeve (2) is fixedly connected to the ejector plate one (13) by the first fixing block (3), and the guide sleeve (2) and the outer sleeve (4) are respectively provided with slots matching the first fixing block (3) and the second fixing block (5) at the top position and the bottom position of the outer sleeve (4).

3. A secondary ejection mechanism according to claim 1, characterized in that: The ejector plate one (13) is fixedly connected to the ejector plate two (14), and the ejector plate three (15) is fixedly connected to the ejector plate four (16).

4. A secondary ejection mechanism according to claim 1, characterized in that: A magnet groove (10) is provided on the top of the movable part (9), and a magnet is placed in the magnet groove (10).

5. A secondary ejection mechanism according to claim 1, characterized in that: A second recessed groove matching the movable part (9) is provided at the bottom of the outer sleeve (4).

6. A secondary ejection mechanism according to claim 1, characterized in that: The outer sleeve (4) and the limiting sleeve (6) are both sleeved on the guide sleeve (2).

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