Filling nozzle protection structure of mold sliding block insert core first-pulling mechanism

Abstract

The invention discloses a filling nozzle protection structure of a mold sliding block insert core first pulling mechanism, which comprises an upper fixing plate, a filling nozzle is arranged on the upper fixing plate, a stripper plate is arranged at one end of the upper fixing plate, a female mold plate is arranged on the stripper plate, a male mold plate is arranged on one side of the female mold plate, a return pin is arranged on the female mold plate, and the return pin is connected with the upper fixing plate. A return pin is slidably connected into the male mold plate, a first spring is arranged in the male mold plate, an upper ejector plate is arranged at the lower end of the male mold plate, a lower ejector plate is arranged at the lower end of the upper ejector plate, a lower fixing plate is arranged at the lower end of the lower ejector plate, and a supporting column is fixedly connected to the lower end of the male mold plate. And an ejection guide pin is arranged on the male mold plate and penetrates through the upper ejection plate and the lower ejection plate. The invention relates to a filling nozzle protection structure of a mold sliding block insert core first-pulling mechanism. The filling nozzle protection structure has the characteristics of limiting the mold sliding block insert core first-pulling mechanism and protecting a filling nozzle.

Description

Technical Field

[0001] This invention belongs to the field of mold technology, specifically a nozzle protection structure for a mold slider insert first-pull mechanism. Background Technology

[0002] The mold slider-first extraction structure is a key functional design in injection molds for handling the demolding of plastic parts with special structures. When a plastic part has undercuts, side recesses, or details that need to be removed first, this structure can accurately extract the relevant parts at the initial stage of mold opening, avoiding deformation or surface damage to critical parts of the product due to pulling, significantly improving demolding quality and production efficiency. This design is particularly suitable for the production of high-precision plastic parts with complex geometries such as side recesses and protrusions, effectively solving technical difficulties that conventional demolding methods cannot handle, ensuring the integrity of the product's appearance and dimensional stability.

[0003] However, in practical applications, this structure has significant functional limitations: because the design focuses on prioritizing the extraction of specific components, the existing mold slider insert extraction structure cannot effectively limit and control the nozzle position. During mold opening, the nozzle is prone to unexpected displacement, requiring operators to invest extra time in manual adjustment and calibration, increasing the complexity and uncertainty of the production preparation process. Although this functional deficiency does not directly affect the demolding quality, it has become a bottleneck restricting the improvement of the production line's automation level. This operational challenge needs to be solved through structural optimization or the addition of auxiliary devices to achieve precise control of the entire demolding process. Summary of the Invention The purpose of this invention is to provide a nozzle protection structure for a mold slider insert pre-extraction mechanism in order to solve the above-mentioned problems, thereby resolving the issues mentioned in the background art.

[0004] To address the aforementioned problems, this invention provides a nozzle protection structure for a mold slider insert mechanism: A nozzle protection structure for a mold slider insert pre-extraction mechanism includes an upper fixed plate with a nozzle mounted on it. A stripper plate is located at one end of the upper fixed plate, and a female template is mounted on the stripper plate. A male template is located on one side of the female template, and a return pin is mounted on the female template. A return pin is slidably connected inside the male template, and a first spring is located inside the male template. An upper ejector plate is located at the lower end of the male template, and a lower ejector plate is located at the lower end of the upper ejector plate. The male template has a lower fixed plate at one end, and a support column is fixedly connected to the lower end of the male template. An ejector guide pin is provided on the male template, passing through the upper and lower ejector plates. One end of the ejector guide pin is fixedly connected to the lower fixed plate. A wear-resistant plate is provided inside the male template, and a slider seat bundle is provided inside the male template. A slider is provided inside the slider seat bundle, and a slider is provided on the wear-resistant plate. An angle pin is slidably connected inside the slider. A shaped [female template] is provided at one end of the upper fixed plate, the female template, and the male template. The system includes a pre-opening plate, a large tie rod inside the female template, male template, upper ejector plate, and lower ejector plate, a resin opener / closer between the female template and male template, a small tie rod inside the upper fixed plate, female template, and male template, a guide pin sleeve inside the female template, a slanted pin seat inside the lower ejector plate, a female mold core on the female template, a male mold core inside the male template, a slanted pin inside the slanted pin seat, the slanted pin being slidably connected to the male template, a grabbing slanted pin inside the female template, a baffle slidably connected inside the nozzle, the baffle being slidably connected to the upper fixed plate, a knob rotatably connected inside the upper fixed plate, a threaded rod fixedly connected to the side of the knob near the nozzle, a retaining ring fixedly connected to the outer side of the threaded rod, the retaining ring contacting the inner wall of the nozzle, the threaded rod being threadedly connected to the baffle, a guide block fixedly connected to the baffle, the guide block being slidably connected to the upper fixed plate, a sealing gasket at one end of the baffle, and the sealing gasket contacting the nozzle.

[0005] Preferably, one end of the first spring is sleeved with the return pin, and the other end of the first spring contacts the male template. Through the design of the first spring, the return force of the return pin can be provided.

[0006] Preferably, the support column is slidably connected to the upper top plate and the lower top plate. The support column is designed to connect the template and the upper top plate and provide support.

[0007] Preferably, the lower ejector plate is provided with an ejector column, which is slidably connected to the lower fixed plate. The ejector column can drive the lower fixed plate to move.

[0008] Preferably, the template is provided with positioning posts, which are slidably connected to the upper ejector plate. The positioning posts are designed to position the upper ejector plate.

[0009] Preferably, a guide rod is fixedly connected inside the upper fixing plate, and the guide rod is slidably sleeved with the guide block. Through the design of the guide rod, the guide block can be guided.

[0010] Preferably, a limiting rod is fixedly connected to the sealing gasket, and the limiting rod is slidably connected to the baffle. The design of the limiting rod can limit the sealing gasket.

[0011] Preferably, a locking block is fixedly connected to the sealing gasket, and a locking block is also locked inside the baffle. The locking block design allows for easy disassembly and replacement of the sealing gasket. A push plate is slidably connected inside the nozzle, and a positioning block is fixedly connected to the side of the push plate near the knob. The positioning block is slidably connected to the nozzle and the knob. A slide rod is fixedly connected to the side of the push plate away from the positioning block, and the slide rod is slidably connected to the nozzle. A limit ring is fixedly connected inside the nozzle, and the limit ring is slidably connected to the slide rod. A second spring is provided inside the nozzle, with one end of the second spring contacting the slide rod and the other end of the second spring contacting the nozzle.

[0012] The beneficial effects of this invention are as follows: This invention relates to a nozzle protection structure for a mold slider insert pre-extraction mechanism, which features limiting the position of the mold slider insert pre-extraction structure and protecting the nozzle. In specific applications, compared with traditional mold slider insert pre-extraction structures, this mold slider insert pre-extraction structure has the following beneficial effects: First, by configuring wear-resistant plates, friction and wear during the movement of the slider are effectively reduced; the corner pins are used to achieve precise sliding positioning and reliable fixation of the slider; an anti-opening plate is set to effectively constrain abnormal displacement of the slider when the mold opens; a large tie rod structure is adopted to achieve stable drive of the mold opening and closing action; and a small tie rod device is configured to precisely limit the mold opening stroke range, ensuring the mold movement accuracy and operational reliability.

[0013] Secondly, a baffle and knob assembly are added to ensure precise positioning and protection of the nozzle; a sealing gasket enhances the seal between the baffle and the nozzle sidewall; and a locking mechanism allows for quick gasket removal and replacement, improving maintenance convenience. This triple-structure design ensures both nozzle operation safety and reliable sealing, while simplifying daily maintenance procedures. Attached Figure Description For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0014] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 For the present invention Figure 1 sectional view Figure 1 ; Figure 3 For the present invention Figure 1 sectional view Figure 2 ; Figure 4 For the present invention Figure 1 sectional view Figure 3 ; Figure 5 For the present invention Figure 1 A partial structural sectional view; Figure 6 For the present invention Figure 2 Enlarged view of part A in the diagram; Figure 7 For the present invention Figure 2 Enlarged view of section B in the diagram.

[0015] Figure 8 For the present invention Figure 2 Enlarged view of section C in the diagram.

[0016] In the diagram: 1. Upper fixing plate; 2. Nozzle; 3. Stripping plate; 4. Female template; 5. Male template; 6. Return pin; 7. First spring; 8. Upper ejector plate; 9. Lower ejector plate; 10. Lower fixing plate; 11. Support column; 12. Ejector column; 13. Ejector guide pin; 14. Wear-resistant plate; 15. Angle pin; 16. Slider; 17. Slider seat bundle; 18. Opening prevention plate; 19. Large tie rod; 20. Resin opener / closer; 21. Small 21. Pull rod; 22. Positioning pin; 23. Guide pin sleeve; 24. Angled pin seat; 25. Female mold core; 26. Male mold core; 27. Angled pin; 28. Grab Angled pin; 31. Baffle; 32. Knob; 33. Threaded rod; 34. Guide block; 35. Guide rod; 311. Sealing gasket; 312. Limiting rod; 313. Locking block; 314. Retaining ring; 41. Push plate; 42. Positioning block; 43. Slide rod; 44. Limiting ring; 45. Second spring. Detailed Implementation like Figure 1-8 As shown, the specific implementation adopts the following technical solution: Example: A nozzle protection structure for a mold slider insert pre-extraction mechanism includes an upper fixed plate 1, a nozzle 2 disposed on the upper fixed plate 1, a stripper plate 3 disposed at one end of the upper fixed plate 1, a female mold plate 4 disposed on the stripper plate 3, a male mold plate 5 disposed on one side of the female mold plate 4, a return pin 6 disposed on the female mold plate 4, a return pin 6 slidably connected inside the male mold plate 5, a first spring 7 disposed inside the male mold plate 5, an upper ejector plate 8 disposed at the lower end of the male mold plate 5, a lower ejector plate 9 disposed at the lower end of the upper ejector plate 8, and a lower fixed plate 10 disposed at the lower end of the lower ejector plate 9. A support column 11 is fixedly connected to the lower end of plate 5. An ejector pin 13 is provided on the male template 5, penetrating the upper ejector plate 8 and the lower ejector plate 9. One end of the ejector pin 13 is fixedly connected to the lower fixed plate 10. A wear-resistant plate 14 is provided inside the male template 5. A slider seat bundle 17 is provided inside the male template 5. A slider 16 is provided inside the slider seat bundle 17. A slider 16 is provided on the wear-resistant plate 14. An angle pin 15 is slidably connected inside the slider 16. An anti-opening plate 18 is provided at one end of the upper fixed plate 1, the female template 4, and the male template 5. The female template... 4. Large tie rods 19 are installed inside the male template 5, upper ejector plate 8, and lower ejector plate 9. A resin opening / closing device 20 is installed between the female template 4 and the male template 5. Small tie rods 21 are installed inside the upper fixing plate 1, female template 4, and male template 5. A guide pin sleeve 23 is installed inside the female template 4. A slanted pin seat 24 is installed inside the lower ejector plate 9. A female mold core 25 is installed on the female template 4. A male mold core 26 is installed inside the male template 5. A slanted pin 27 is installed inside the slanted pin seat 24. The slanted pin 27 is slidably connected to the male template 5. A gripping slanted pin 28 is installed inside the female template 4. A baffle 31 is slidably connected inside the nozzle 2. The baffle 31 is slidably connected to the upper fixed plate 1. A knob 32 is rotatably connected inside the upper fixed plate 1. A threaded rod 33 is fixedly connected to the side of the knob 32 near the nozzle 2. The threaded rod 33 is threadedly connected to the baffle 31. A retaining ring 314 is fixedly connected to the outside of the threaded rod 33. The retaining ring 314 contacts the inner wall of the nozzle 2. A guide block 34 is fixedly connected to the baffle 31. The guide block 34 is slidably connected to the upper fixed plate 1. A sealing gasket 311 is in contact with one end of the baffle 31. The sealing gasket 311 is in contact with the nozzle 2.

[0017] One end of the first spring 7 is sleeved with the return pin 6, and the other end of the first spring 7 is in contact with the male template 5. The design of the first spring 7 can provide the return force of the return pin 6.

[0018] The support column 11 is slidably connected to the upper ejector plate 8 and the lower ejector plate 9. The support column 11 is designed to connect the template 5 and the upper ejector plate 8 and provide support.

[0019] The lower ejector plate 9 is provided with an ejector column 12, which is slidably connected to the lower fixed plate 10. The ejector column 12 can drive the lower fixed plate 10 to move.

[0020] The template 5 is provided with a positioning post 22, which is slidably connected to the upper ejector plate 8. The positioning post 22 is designed to position the upper ejector plate 8.

[0021] The upper fixing plate 1 is internally fixedly connected with a guide rod 35, which is slidably sleeved with the guide block 34. The guide rod 35 is designed to guide the guide block 34.

[0022] The sealing gasket 311 is fixedly connected to a limiting rod 312, which is slidably connected to the baffle 31. The limiting rod 312 can limit the sealing gasket 311 through its design.

[0023] The sealing gasket 311 is fixedly connected to a locking block 313, and the baffle 31 is internally fitted with the locking block 313. The design of the locking block 313 allows for easy disassembly and replacement of the sealing gasket 311. The nozzle 2 is internally slidably connected to a push plate 41. The side of the push plate 41 near the knob 32 is fixedly connected to a positioning block 42, which is slidably connected to the nozzle 2 and the knob 32. The side of the push plate 41 away from the positioning block 42 is fixedly connected to a sliding rod 43, which is slidably connected to the nozzle 2. The nozzle 2 is internally fixedly connected to a limiting ring 44, which is slidably connected to the sliding rod 43. The nozzle 2 is internally provided with a second spring 45, one end of which contacts the sliding rod 43, and the other end of which contacts the nozzle 2.

[0024] The invention is used as follows: In use, by moving the push plate 41 away from the knob 32, the push plate 41 causes the slide rod 43 to slide within the limiting ring 44, compressing the second spring 45. This causes the push plate 41 to slide the positioning block 42 out of the knob 32, thus releasing the limiting effect on the knob 32. Then, rotating the knob 32 causes the threaded rod 33 to rotate, resulting in a threaded movement between the threaded rod 33 and the baffle 31. This causes the baffle 31 to slide the guide block 34 on the guide rod 35, and the baffle 31... 1. Moving the threaded rod 33 allows the baffle 31 to slide into the upper fixed plate 1, thereby releasing the limit on the nozzle 2 and opening the nozzle 2. The wear-resistant plate 14 reduces the friction and wear of the slider 16, and the corner pin 15 can be used to slide and fix the slider 16. The mold opening prevention plate 18 can be used to limit the displacement of the slider 16 when the mold is opened. The design of the large pull rod 19 can be used to perform the opening and closing operation of the mold. The small pull rod 21 can be used to limit the opening range of the mold.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A nozzle protection structure for a mold slider insert pre-extraction mechanism, comprising an upper fixing plate (1), characterized in that: The upper fixed plate (1) is provided with a nozzle (2), one end of the upper fixed plate (1) is provided with a stripping plate (3), the stripping plate (3) is provided with a female template (4), one side of the female template (4) is provided with a male template (5), the female template (4) is provided with a return pin (6), the male template (5) is slidably connected with the return pin (6), the male template (5) is provided with a first spring (7), the lower end of the male template (5) is provided with an upper ejector plate (8), the lower end of the upper ejector plate (8) is provided with a lower ejector plate (9), the lower end of the lower ejector plate (9) is provided with a lower fixed plate (10), the lower end of the male template (5) is fixedly connected with a support column (11), the male template (5) The upper ejector plate (8) and the lower ejector plate (9) are provided with ejector guide pins (13), which pass through the upper ejector plate (8) and the lower ejector plate (9). One end of the ejector guide pin (13) is fixedly connected to the lower fixed plate (10). The male template (5) is provided with a wear-resistant plate (14). The male template (5) is provided with a slider seat bundle (17). The slider seat bundle (17) is provided with a slider (16). The wear-resistant plate (14) is provided with a slider (16). The slider (16) is slidably connected with a corner pin (15). One end of the upper fixed plate (1), the female template (4) and the male template (5) is provided with a mold opening prevention plate (18). The female template (4), the male template (5), the upper ejector plate (8) and the lower ejector plate (9) are all provided with mold opening prevention plates (18). The ejector plate (9) is equipped with a large tie rod (19). A resin opener (20) is provided between the female template (4) and the male template (5). Small tie rods (21) are provided inside the upper fixing plate (1), the female template (4), and the male template (5). A guide pin sleeve (23) is provided inside the female template (4). A slanted pin seat (24) is provided inside the lower ejector plate (9). A female mold core (25) is provided on the female template (4). A male mold core (26) is provided inside the male template (5). A slanted pin (27) is provided inside the slanted pin seat (24). The slanted pin (27) is slidably connected to the male template (5). A gripping slanted pin (28) is provided inside the female template (4). The nozzle (2) The internal sliding connection is a baffle (31), which is slidably connected to the upper fixed plate (1). The upper fixed plate (1) is rotatably connected to a knob (32). The knob (32) is fixedly connected to a threaded rod (33) on the side near the nozzle (2). A retaining ring (314) is fixedly connected to the outside of the threaded rod (33). The retaining ring (314) contacts the inner wall of the nozzle (2). The threaded rod (33) is threadedly connected to the baffle (31). A guide block (34) is fixedly connected to the baffle (31). The guide block (34) is slidably connected to the upper fixed plate (1). One end of the baffle (31) contacts a sealing gasket (311). The sealing gasket (311) contacts the nozzle (2).

2. The nozzle protection structure of the mold slider insert pre-extraction mechanism according to claim 1, characterized in that: One end of the first spring (7) is sleeved with the return pin (6), and the other end of the first spring (7) is in contact with the male template (5).

3. The nozzle protection structure of the mold slider insert pre-extraction mechanism according to claim 1, characterized in that: The support column (11) is slidably connected to the upper ejector plate (8), and the support column (11) is slidably connected to the lower ejector plate (9).

4. The nozzle protection structure of the mold slider insert pre-extraction mechanism according to claim 1, characterized in that: The lower ejector plate (9) is provided with an ejector column (12), which is slidably connected to the lower fixed plate (10).

5. The nozzle protection structure of the mold slider insert pre-extraction mechanism according to claim 1, characterized in that: The template (5) is provided with a positioning column (22), which is slidably connected to the top plate (8).

6. The nozzle protection structure of the mold slider insert pre-extraction mechanism according to claim 1, characterized in that: The upper fixing plate (1) is internally fixedly connected to a guide rod (35), and the guide rod (35) is slidably sleeved with the guide block (34).

7. The nozzle protection structure of the mold slider insert pre-extraction mechanism according to claim 1, characterized in that: A limiting rod (312) is fixedly connected to the sealing gasket (311), and the limiting rod (312) is slidably connected to the baffle (31).

8. The nozzle protection structure of the mold slider insert pre-extraction mechanism according to claim 1, characterized in that: A locking block (313) is fixedly connected to the sealing gasket (311). The locking block (313) is locked inside the baffle (31). A push plate (41) is slidably connected inside the nozzle (2). A positioning block (42) is fixedly connected to the side of the push plate (41) near the knob (32). The positioning block (42) is slidably connected to the nozzle (2). The positioning block (42) is slidably connected to the knob (32). A slide rod (43) is fixedly connected to the side of the push plate (41) away from the positioning block (42). The slide rod (43) is slidably connected to the nozzle (2). A limit ring (44) is fixedly connected inside the nozzle (2). The limit ring (44) is slidably connected to the slide rod (43). A second spring (45) is provided inside the nozzle (2). One end of the second spring (45) is in contact with the slide rod (43), and the other end of the second spring (45) is in contact with the nozzle (2).

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