Secondary core-pulling mechanism for pulling sliding block of mold

Abstract

The utility model relates to the technical field of injection molding moulds, and provides a mould slide block dragging slide block secondary core-pulling mechanism which comprises a mould seat, a mould core, an oil cylinder assembly, a main slide seat, an upper slide block, a lower slide block, an anti-back-off slide block, a shovel base and a distance bolt, the oil cylinder assembly is fixedly arranged on the mould seat, the output end of the oil cylinder assembly is fixedly connected with one side of the main slide seat, and the other side of the main slide seat is fixedly connected with the shovel base. The lower sliding block is arranged on the lower side of the upper sliding block and is in sliding connection with the upper sliding block, the lower sliding block is connected with the main sliding seat through a distance bolt, the anti-back-off sliding block is arranged in the lower sliding block in a sliding mode, the shovel base is arranged on the lower side of the anti-back-off sliding block, one end of the shovel base is in sliding connection with the anti-back-off sliding block, and the other end of the shovel base is in sliding connection with the anti-back-off sliding block. The sliding block mold stripping mechanism is reasonable in structure, convenient to use and capable of ensuring that a product cannot be influenced when a sliding block is stripped from a mold.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding molds, in particular to a mold slider drag slider secondary core pulling mechanism. Background Art

[0002] At present, the design of plastic products is becoming more and more sophisticated, the structure is more complex, the requirements for molds are becoming more and more precise, and the space left for mold design is smaller; in the production and manufacturing process of injection molding molds, due to the structural problems of the products, the structural design of the molds needs to be more complicated, and the mold processing and mold matching processes are numerous, which leads to cost waste in the mold processing and product production process.

[0003] As disclosed in application number: CN201410066684.5, a mold core pulling mechanism includes a fixed seat, a first slider, a push rod, a mold shell, a second slider, a push block and a spring, the first slider includes a first core pulling end and a first fixed end located at the front and rear ends, the push rod is located below the first slider, the push rod includes a pushing end and a second fixed end located at the front and rear ends, the first and second fixed ends are fixed on the fixed seat, the second slider, the push block and the spring are respectively arranged in the mold shell, the second slider has a second core pulling end protruding forward from the mold shell, the spring is compressed between the mold shell and the second slider, the pushing end can push the push block to move up and down, the second slider is located above the push block and abuts against the push block, and the spring can push the second slider to move forward and backward to complete the core pulling operation on the plastic part.

[0004] The outer wall of the existing sleeve product has a protruding thin tube, and the end of the thin tube has a negative molding angle, which causes the product to be damaged when the slider is demolded, thereby affecting the product quality. Utility Model Content

[0005] In order to solve the problem that the outer wall of the existing sleeve product has a protruding thin tube, and the end of the thin tube has a negative molding angle, which causes the slider to pull the product when it is demolded and affects the product quality, the utility model provides a mold slider dragging slider secondary core pulling mechanism to solve this problem.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] The mold slider drags the slider for secondary core pulling, comprising: a mold base, a mold core, a cylinder assembly, a main slide, an upper slide, a lower slide, an anti-backlash slide, a shovel base and a distance bolt. The cylinder assembly is fixedly installed on the mold base, and the output end of the cylinder assembly is fixedly connected to one side of the main slide, the main slide is slidably connected to the mold base, and the other side of the main slide is slidably connected to the upper slide. The lower slide is arranged at the lower side of the upper slide and is slidably connected to the upper slide. The lower slide is connected to the main slide through the distance bolts, the anti-backlash slide is slidably arranged in the lower slide, the shovel base is arranged at the lower side of the anti-backlash slide, one end of the shovel base is slidably connected to the anti-backlash slide, and the other end of the shovel base is fixedly connected to the main slide.

[0008] Preferably, it also includes: a slider insert, one end of which is fixedly connected to the main slide seat, and the other end of the slider insert passes through the upper slider and the lower slider to cooperate with the anti-backlash slider.

[0009] Preferably, the contact surfaces of the upper slider, the lower slider, the anti-backlash slider and the slider insert with the product are all conformal surfaces.

[0010] Preferably, it also includes: a distance limit block, the lower side of which is movably arranged on the mold base through a spring, and a first protrusion and a second protrusion are arranged on the distance limit block, the first protrusion is used in conjunction with the main slide, and the second protrusion is used in conjunction with the lower slide.

[0011] Preferably, it also includes: a slide plate, which is arranged on the mold base, and the main slide seat is connected to the slide plate in a sliding manner.

[0012] Preferably, the shovel base is provided with a first wedge-shaped sliding surface for sliding cooperation with the anti-backlash sliding block.

[0013] Preferably, the anti-undercut sliding block is provided with a second wedge-shaped sliding surface used in conjunction with the first wedge-shaped sliding surface.

[0014] Preferably, a cooling pipe is provided in the lower sliding block, and a liquid outlet of the cooling pipe faces the sliding surface.

[0015] The advantages of the utility model are: by adding an upper slider, a lower slider, an anti-backlash slider and a shovel base, the utility model can ensure that the slider will not affect the product when it is demolded under the action of the main slide seat and the fixed distance bolts. By separately arranging the upper slider and the lower slider, the anti-backlash slider can be smoothly demolded to avoid interference during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0017] Figure 1It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the working parts of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the utility model product;

[0020] Figure 4 It is a structural schematic diagram of the main slide, the upper slide and the lower slide of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the anti-backlash sliding block and the shovel base of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the utility model distance bolt;

[0023] Figure 7 It is a structural schematic diagram of the slider insert of the utility model;

[0024] Figure 8 It is a structural schematic diagram of the fixed distance limit block of the utility model;

[0025] Fig. 9 It is a structural schematic diagram of the utility model skateboard;

[0026] Fig.10 It is a structural schematic diagram of the first wedge-shaped sliding surface of the utility model;

[0027] Fig.11 It is a structural schematic diagram of the second wedge-shaped sliding surface of the utility model;

[0028] Fig.12 It is a structural schematic diagram of the cooling pipe of the utility model.

[0029] Description of reference numerals:

[0030] 1. Die base; 2. Die core; 3. Cylinder assembly; 4. Main slide; 5. Upper slide; 6. Lower slide; 7. Anti-backlash slide; 8. Shovel base; 9. Distance bolt; 10. Slide insert; 20. Product; 11. Distance limit block; 12. Spring; 13. First protrusion; 14. Second protrusion; 15. Slide plate; 16. First wedge-shaped sliding surface; 17. Second wedge-shaped sliding surface; 18. Cooling pipe. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0032] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] Embodiment 1, combined with Figure 1-Figure 6 To explain:

[0035] The mold slider drags the slider for secondary core pulling, comprising: a mold base 1, a mold core 2, a cylinder assembly 3, a main slide 4, an upper slide 5, a lower slide 6, an anti-backlash slide 7, a shovel base 8 and a distance bolt 9. The cylinder assembly 3 is fixedly installed on the mold base 1, and the output end of the cylinder assembly 3 is fixedly connected to one side of the main slide 4. The main slide 4 is slidably connected to the mold base 1, and the other side of the main slide 4 is slidably connected to the upper slide 5. The lower slide 6 is arranged at the lower side of the upper slide 5 and is slidably connected to the upper slide 5. The lower slide 6 is connected to the main slide 4 through the distance bolt 9. The anti-backlash slide 7 is slidably arranged in the lower slide 6, and the shovel base 8 is arranged at the lower side of the anti-backlash slide 7. One end of the shovel base 8 is slidably connected to the anti-backlash slide 7, and the other end of the shovel base 8 is fixedly connected to the main slide 4.

[0036] By using the oil cylinder assembly 3 to drive, the main slide 4 and other slides can be operated quickly and accurately, thereby effectively reducing the production cycle and improving production efficiency. Each component is relatively independent, and troubleshooting and maintenance become simpler. The oil cylinder assembly 3 uses an oil cylinder and an oil cylinder fixing seat. The oil cylinder is installed on the mold base 1 through the oil cylinder fixing seat, and the output end of the oil cylinder is fixedly connected to the main slide 4.

[0037] The contact surfaces of the upper slider 5, the lower slider 6, the anti-backlash slider 7 and the slider insert 10 with the product 20 are all conformal surfaces.

[0038] By means of sliding connection among the mold base 1, the main slide 4, the upper slide 5, the lower slide 6, the anti-backlash slide 7 and the shovel base 8, the impact and noise are reduced, and the stability and service life of the mold are improved.

[0039] With such arrangement, by adding the upper slider 5, the lower slider 6, the anti-backlash slider 7 and the shovel base 8, under the action of the main slide 4 and the distance bolt 9, it can be ensured that the slider will not affect the product when it is demolded. By separately arranging the upper slider 5 and the lower slider 6, it can be ensured that the anti-backlash slider is demolded smoothly to avoid interference during movement.

[0040] Embodiment 2, based on embodiment 1, combined with Figure 7 To explain:

[0041] It also includes a slider insert 10 , one end of which is fixedly connected to the main slider 4 , and the other end of the slider insert 10 passes through the upper slider 5 and the lower slider 6 to cooperate with the anti-backlash slider 7 .

[0042] The slider insert 10 improves the motion accuracy and stability of the entire mechanism by precisely cooperating with the main slide 4, the upper slider 5, the lower slider 6 and the anti-backlash slider 7. The slider insert 10 is provided to meet the needs of rapid replacement and maintenance, and damaged or worn parts can be replaced separately without affecting the operation of the entire mold.

[0043] Embodiment 3, based on embodiment 2, combined with Figure 8 To explain:

[0044] It also includes: a distance limit block 11, the lower side of which is movably set on the mold base 1 through a spring 12, and a first protrusion 13 and a second protrusion 14 are set on the distance limit block 11. The first protrusion 13 is used in conjunction with the main slide 4, and the second protrusion 14 is used in conjunction with the lower slide 6.

[0045] The distance limit block 11 provides a precise limit point for the slider through the first protrusion 13 and the second protrusion 14 thereon, ensuring the accurate position of the slider during the movement, avoiding excessive travel and collision, thereby avoiding possible mechanical damage and personal injury.

[0046] Embodiment 4, based on embodiment 3, combined with Fig. 9 To explain:

[0047] The mold base 1 further includes a slide plate 15, which is arranged on the mold base 1, and the main slide base 4 is slidably connected with the slide plate 15. In this arrangement, the slide plate 15 is made of wear-resistant material, thereby increasing the service life of the parts.

[0048] Embodiment 5, based on embodiment 4, combined with Fig.10 and Fig.11 To explain:

[0049] The shovel base 8 is provided with a first wedge-shaped sliding surface 16 for slidingly cooperating with the anti-backlash sliding block 7 .

[0050] The anti-undercut sliding block 7 is provided with a second wedge-shaped sliding surface 17 used in conjunction with the first wedge-shaped sliding surface 16 .

[0051] By providing the first wedge-shaped sliding surface 16 and the second wedge-shaped sliding surface 17 , load transfer can be achieved, ensuring that the motion trajectory of the anti-backlash sliding block 7 meets the design requirements.

[0052] Embodiment 6, based on embodiment 5, combined with Fig.12 To explain:

[0053] A cooling pipe 18 is arranged inside the lower slider 6, and the liquid outlet of the cooling pipe 18 is directly opposite to the sliding surface. In this way, the sliding surface can be cooled to extend the service life.

[0054] The working principle of the utility model: when the slider is demoulded, the cylinder assembly 3 drives the main slider 4 to retreat, and the main slider 4 drives the upper slider 5 and the shovel base 8 to retreat. When the shovel base 8 retreats, the first wedge-shaped sliding surface 16 and the second wedge-shaped sliding surface 17 drive the anti-backlash slider 7 to move downward, so that the anti-backlash slider 7 is separated from the undercut of the product. Then, when it is completely separated, the fixed-distance bolt 9 drives the lower slider 6 to retreat, and the demoulding of all sliders is completed. The utility model has a reasonable structure and is easy to use, which can ensure that the slider will not affect the product when it is demoulded.

[0055] For those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. The mold slider drag slider secondary core pulling mechanism is characterized by: include: A die base (1), a die core (2), a cylinder assembly (3), a main slide (4), an upper slide (5), a lower slide (6), an anti-backlash slide (7), a shovel base (8) and a distance bolt (9); the cylinder assembly (3) is fixedly mounted on the die base (1); an output end of the cylinder assembly (3) is fixedly connected to one side of the main slide (4); the main slide (4) is slidably connected to the die base (1); the other side of the main slide (4) is slidably connected to the upper slide (5); the lower slide (6) is arranged at the lower side of the upper slide (5) and is slidably connected to the upper slide (5); the lower slide (6) is connected to the main slide (4) via the distance bolt (9); the anti-backlash slide (7) is slidably arranged in the lower slide (6); the shovel base (8) is arranged at the lower side of the anti-backlash slide (7); one end of the shovel base (8) is slidably connected to the anti-backlash slide (7); and the other end of the shovel base (8) is fixedly connected to the main slide (4).

2. The mold slider and drag slider secondary core pulling mechanism according to claim 1, characterized in that: Also includes: A slider insert (10), one end of which is fixedly connected to the main slider (4), and the other end of which passes through the upper slider (5) and the lower slider (6) to cooperate with the anti-backlash slider (7).

3. The mold slider drag slider secondary core pulling mechanism according to claim 2, characterized in that: The contact surfaces of the upper slider (5), the lower slider (6), the anti-backlash slider (7) and the slider insert (10) with the product (20) are all conformal surfaces.

4. The mold slider drag slider secondary core pulling mechanism according to claim 1, characterized in that: Also includes: A distance limiting block (11), the lower side of which is movably arranged on the die base (1) via a spring (12), the distance limiting block (11) being provided with a first protrusion (13) and a second protrusion (14), the first protrusion (13) being used in conjunction with the main slide seat (4), and the second protrusion (14) being used in conjunction with the lower slide seat (6).

5. The mold slider and drag slider secondary core pulling mechanism according to claim 1, characterized in that: Also includes: A slide plate (15) is arranged on the mold base (1), and the main slide base (4) is connected to the slide plate (15) in a sliding manner.

6. The mold slider drag slider secondary core pulling mechanism according to claim 1, characterized in that: The shovel base (8) is provided with a first wedge-shaped sliding surface (16) for slidingly cooperating with the anti-undercut sliding block (7).

7. The mold slider and drag slider secondary core pulling mechanism according to claim 6, characterized in that: The anti-undercut sliding block (7) is provided with a second wedge-shaped sliding surface (17) used in conjunction with the first wedge-shaped sliding surface (16).

8. The mold slider and drag slider secondary core pulling mechanism according to claim 1, characterized in that: A cooling pipe (18) is arranged inside the lower sliding block (6), and a liquid outlet of the cooling pipe (18) faces the sliding surface.

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