Injection mold slider sequential ejection structure

Abstract

The utility model discloses a kind of injection mould slider sequence demoulding structures, including upper die plate and lower die plate;The bottom of upper die plate is equipped with inclined guide pillar and vertical slide hole respectively located in the both sides of upper die kernel, slidingly connected with movable spade base in vertical slide hole, and the bottom end inner wall of vertical slide hole is equipped with baffle ring, the top end outer wall of movable spade base is equipped with limit ring, spring groove that is communicated with the top end of vertical slide hole is equipped in upper die plate, spring groove is equipped with the spring that is connected with the top end of movable spade base;The top of lower die plate is slidingly connected with first slider and second slider respectively located in the both sides of lower die kernel, first slider is equipped with inclined guide hole that is slidably cooperated with inclined guide pillar, the side portion of second slider back to lower die kernel side is equipped with inclined guide slot, the bottom end of movable spade base extends to the below of upper die plate and is equipped with inclined slide strip that is slidably jointed with inclined guide slot.The utility model discloses a kind of injection mould slider sequence demoulding structures, its structure is reasonable, can effectively realize slider sequence demoulding, improve the qualified rate of product.

Description

Technical Field

[0001] This utility model relates to a sequential demolding structure for a slider in an injection mold. Background Technology

[0002] In existing technologies, when demolding products with multiple undercut structures, two sliders need to be demolded in a specific order.

[0003] The traditional solution uses two independent hydraulic cylinders to drive the slider separately, but this has the following problems:

[0004] The dual-cylinder layout increases the mold size and occupies more equipment space.

[0005] 2. Additional cylinders and hydraulic control systems increase manufacturing costs.

[0006] Therefore, it is necessary to design corresponding technical solutions to address the above problems. Summary of the Invention

[0007] To overcome the aforementioned deficiencies of the prior art, this utility model provides a sequential demolding structure for injection mold sliders, thereby solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the technical solution of this utility model is to design a sequential demolding structure for an injection mold slider, including an upper mold plate and a lower mold plate;

[0009] The bottom of the upper template is provided with an upper mold core, and the bottom of the upper template is provided with inclined guide posts and vertical sliding holes located on both sides of the upper mold core. A movable shovel base is slidably connected in the vertical sliding hole, and a retaining ring is provided on the inner wall of the bottom end of the vertical sliding hole. A limiting ring is provided on the outer wall of the top end of the movable shovel base. The upper template is provided with a spring groove communicating with the top end of the vertical sliding hole, and a spring is provided in the spring groove that is connected to the top end of the movable shovel base.

[0010] The lower template has a lower mold core at its top, and the top of the lower template is slidably connected to a first slider and a second slider located on both sides of the lower mold core. The first slider has an oblique guide hole that slides with the oblique guide post, and the second slider has an oblique guide groove on the side facing away from the lower mold core. The bottom end of the movable shovel base extends to the bottom of the upper template and has an oblique slide bar that slides with the oblique guide groove.

[0011] Preferably, both the inclined guide groove and the inclined slide bar have T-shaped cross-sections.

[0012] Preferably, the top of the upper template is provided with a panel.

[0013] Preferably, a base plate is provided below the lower template, and a pin plate is provided between the lower template and the base plate, with a pin provided at the top of the pin plate.

[0014] Preferably, a square iron is connected between the lower template and the base plate.

[0015] The advantages and beneficial effects of this utility model are as follows: It provides a sequential demolding structure for injection mold sliders, which has a reasonable structure and can effectively realize the sequential demolding of sliders, improve the product qualification rate, and has the advantages of simple structure and reliable operation, making it suitable for widespread application. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0018] Reference numerals: 1. Upper mold plate; 2. Lower mold plate; 3. Upper mold core; 4. Angled guide post; 5. Vertical sliding hole; 6. Movable shovel base; 7. Retaining ring; 8. Limiting ring; 9. Spring groove; 10. Spring; 11. Lower mold core; 12. First slider; 13. Second slider; 14. Angled guide hole; 15. Angled guide groove; 16. Angled slide bar; 17. Panel; 18. Base plate; 19. Ejector plate; 20. Ejector pin; 21. Square iron. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0020] The specific technical solution of this utility model is as follows:

[0021] In one specific embodiment, such as Figure 1 and Figure 2 As shown, this utility model provides a sequential demolding structure for a slider in an injection mold, including an upper mold plate 1 and a lower mold plate 2;

[0022] The bottom of the upper template 1 is provided with an upper mold core 3, and the bottom of the upper template 1 is provided with inclined guide posts 4 and vertical sliding holes 5 located on both sides of the upper mold core 3. A movable shovel base 6 is slidably connected in the vertical sliding hole 5, and a retaining ring 7 is provided on the inner wall of the bottom end of the vertical sliding hole 5. A limiting ring 8 is provided on the outer wall of the top end of the movable shovel base 6. The upper template 1 is provided with a spring groove 9 communicating with the top end of the vertical sliding hole 5, and a spring 10 connected to the top end of the movable shovel base 6 is provided in the spring groove 9.

[0023] The lower mold plate 2 has a lower mold core 11 at its top, and the top of the lower mold plate 2 is slidably connected to a first slider 12 and a second slider 13 located on both sides of the lower mold core 11. The first slider 12 has an oblique guide hole 14 that slides with the oblique guide post 4. The second slider 13 has an oblique guide groove 15 on the side facing away from the lower mold core 11. The bottom end of the movable shovel base 6 extends to the bottom of the upper mold plate 2 and has an oblique slide bar 16 that slides with the oblique guide groove 15.

[0024] The working principle of this utility model's injection mold slider sequential demolding structure, based on the above solution, is as follows:

[0025] When the upper mold plate 1 and the lower mold plate 2 are closed, the upper mold core 3 and the lower mold core 11 are closed, and together with the first slider 12 and the second slider 13, they form a cavity for molding the product; and at this time, the movable shovel base 6 abuts against the top wall of the vertical sliding hole 5, and the spring 10 is in a compressed state.

[0026] When the upper mold plate 1 and the lower mold plate 2 open, it is divided into two stages. In the first stage of mold opening, the upper mold plate 1 drives the upper mold core 3 to move upward and separate from the lower mold core 11. At the same time, the upper mold plate 1 drives the inclined guide post 4 to move upward, so that the inclined guide post 4 drives the first slider 12 away from the lower mold core 11 and detaches from the product through the cooperation of the inclined guide hole 14. In the first stage of mold opening, the movable shovel base 6 will be kept still by the elastic restoring force of the spring 10, so that the second slider 13 will remain still until the upper mold plate 1 moves upward to the contact of the retaining ring 7 and the limiting ring 8. Then the mold opening enters the second stage. In the second stage of mold opening, the upper mold plate 1 continues to drive the upper mold core 3 to move upward. At this time, the upper mold plate 1 will drive the movable shovel base 6 to move upward through the cooperation of the retaining ring 7 and the limiting ring 8. The movable shovel base 6 drives the second slider 13 away from the lower mold core 11 and detaches from the product through the cooperation of the inclined slide bar 16 and the inclined guide groove 15, so as to realize the sequential demolding of the first slider 12 and the second slider 13.

[0027] In another specific embodiment, the cross-sections of the inclined guide groove 15 and the inclined slide bar 16 are both T-shaped.

[0028] The above solution is adopted to ensure that the movable shovel base 6 and the second slider 13 are stably connected and slidably engaged.

[0029] In another specific embodiment, such as Figure 1 As shown, the top of the upper template 1 is provided with a panel 17.

[0030] In another specific embodiment, such as Figure 1 As shown, a base plate 18 is provided below the lower template 2, and a pin plate 19 is provided between the lower template 2 and the base plate 18, with a pin 20 provided on the top of the pin plate 19.

[0031] The above solution is adopted: after the upper mold plate 1 and the lower mold plate 2 are fully opened, the ejector plate 19 drives the ejector pin 20 to move upward, so that the ejector pin 20 ejects the product from the cavity.

[0032] In another specific embodiment, such as Figure 1 As shown, a square iron 21 connects the lower template 2 and the base plate 18.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sequential demolding structure for a sliding block of an injection mold, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: The bottom of the upper template (1) is provided with an upper mold core (3), and the bottom of the upper template (1) is provided with inclined guide posts (4) and vertical sliding holes (5) located on both sides of the upper mold core (3). A movable shovel base (6) is slidably connected in the vertical sliding hole (5), and a retaining ring (7) is provided on the inner wall of the bottom end of the vertical sliding hole (5). A limiting ring (8) is provided on the outer wall of the top end of the movable shovel base (6). A spring groove (9) communicating with the top end of the vertical sliding hole (5) is provided in the upper template (1), and a spring (10) connected to the top end of the movable shovel base (6) is provided in the spring groove (9). The lower template (2) is provided with a lower mold core (11) at the top, and the lower template (2) is slidably connected with a first slider (12) and a second slider (13) located on both sides of the lower mold core (11). The first slider (12) is provided with an inclined guide hole (14) that slides with the inclined guide post (4). The second slider (13) is provided with an inclined guide groove (15) on the side facing away from the lower mold core (11). The bottom end of the movable shovel base (6) extends to the bottom of the upper template (1) and is provided with an inclined slide bar (16) that slides with the inclined guide groove (15).

2. The injection mold slider sequential demolding structure according to claim 1, characterized in that, The cross-sections of the inclined guide groove (15) and the inclined slide bar (16) are both T-shaped.

3. The injection mold slider sequential demolding structure according to claim 1, characterized in that, The top of the upper template (1) is provided with a panel (17).

4. The injection mold slider sequential demolding structure according to claim 1, characterized in that, The lower template (2) is provided with a base plate (18) below it, and a pin plate (19) is provided between the lower template (2) and the base plate (18), and a pin (20) is provided on the top of the pin plate (19).

5. The injection mold slider sequential demolding structure according to claim 4, characterized in that, A square iron (21) connects the lower template (2) and the base plate (18).

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