Laminated slider core pulling mechanism for injection mold

Abstract

The present invention relates to a laminated slider core-pulling mechanism for an injection mold, comprising a first power source, a second power source, a first slider, and a second slider. The second slider is slidably arranged on a movable platen, the first slider is slidably arranged above the second slider, and a plurality of first inclined tops are provided on the first slider. When the first power source drives the first slider to move, the plurality of first inclined tops are driven to move laterally to pull the cores. After the first slider has finished moving, the second power source drives the second slider to move to pull the cores. The present invention implements delayed core pulling of the second slider to prevent the product from sticking to the slider during simultaneous core pulling. When the first slider moves, three groups of first inclined tops are driven to move laterally to pull the cores. The first slider, the second slider, and the first inclined top can all be set to different inclination directions according to the required core pulling directions, thereby meeting the core pulling requirements of the product in different directions and angles.

Description

Technical Field

[0001] The invention relates to a laminated slider core-pulling mechanism of an injection mold, belonging to the technical field of injection molds. Background Art

[0002] In the field of wall-mounted air conditioners, the base is a crucial component. To reduce the number of units and lower costs, existing production methods combine the base and tongue strips in a single mold. This, however, results in a relatively complex product structure. This complex structure requires numerous ribs to be cored out after injection molding. This can easily lead to product sticking to the slider, and the presence of ribs at varying core-pulling angles complicates core extraction. Summary of the Invention

[0003] The purpose of the present invention is to provide a laminated slider core pulling mechanism for an injection mold that prevents products from sticking to the slider and realizes multi-angle core pulling in view of the shortcomings of the existing technology.

[0004] To achieve the purpose, the present invention adopts the following technical solutions:

[0005] The laminated slider core-pulling mechanism of the injection mold includes a first power source, a second power source, a first slider and a second slider. The second slider is slidably set on the movable platen, and the first slider is slidably set above the second slider. A plurality of first inclined tops are penetrated on the first slider. When the first power source drives the first slider to move, the plurality of first inclined tops are driven to move horizontally to pull the core. After the first slider has completed moving, the second power source drives the second slider to move the core.

[0006] As a further optimization of the above technical solution: it also includes a third power source, a third slider and a fourth slider, the second slider is located above the third slider, the third slider is obliquely slidably set on the fourth slider, when the third power source drives the fourth slider to move backward, the third slider moves obliquely downward relative to the fourth slider to pull the core.

[0007] As a further optimization of the above technical solution: a second inclined top is provided in the second slider, a first spring and a mounting seat are provided at the tail of the second inclined top, the mounting seat is fixed on the second slider, and the two ends of the first spring are respectively connected to the second inclined top and the mounting seat. When the mold is closed, the first spring is in a compressed state, and when the second slider moves, it drives the mounting seat to move backward synchronously. The elastic force of the first spring is released, so that the head of the second inclined top is exposed from the second slider and the core is pulled out laterally.

[0008] As a further optimization of the above technical solution: a stopper is installed on the side of the second inclined top, and a limiting hole is formed on the second slider. The stopper is movably arranged in the limiting hole. When the stopper contacts the hole wall of the limiting hole, the second slider drives the second inclined top to move backward synchronously.

[0009] As a further optimization of the above technical solution: the first power source includes a plurality of first inclined guide posts, the second power source includes a plurality of second inclined guide posts, the ends of the first inclined guide posts and the second inclined guide posts are both connected to the fixed mold, the first slider is formed with a plurality of first inclined guide holes, the first inclined guide posts are passed through the first inclined guide holes, the side surfaces of the first inclined guide posts are in contact with the first guide hole walls on the first inclined guide holes, the second slider is formed with a plurality of second inclined guide holes, the second inclined guide posts are passed through the second inclined guide holes, and there is a distance between the side surfaces of the second inclined guide posts and the second guide hole walls on the second inclined guide holes. When the mold is opened, the fixed mold drives the first and second inclined guide posts to move upward, and the upward movement of the first inclined guide posts simultaneously drives the first slider to move backward and pull the core. When the second inclined guide posts move up to contact the second guide hole walls, the upward movement of the second inclined guide posts drives the second slider to move backward, causing the second slider to move delayed relative to the first slider. When the second slider moves, the first slider and the first inclined top have completed core pulling.

[0010] As a further optimization of the above technical solution: the second slider is obliquely arranged on the movable template, the first slider is obliquely arranged on the second slider, and the first slider and the second slider both move obliquely upward.

[0011] As a further optimization of the above technical solution: a guide block is fixed on the second sliding block, the end of the guide block is bent to form a guide protrusion, the tail end of the first inclined top rod is formed with a slide groove, and the guide protrusion is located in the slide groove so that the first inclined top moves along the guide protrusion.

[0012] As a further optimization of the above technical solution: there are three groups of the first inclined roofs in total, and the three groups of the first inclined roofs can be set to different inclination directions according to the required core pulling directions.

[0013] As a further optimization of the above technical solution: the fourth slider is provided with a guide inclined surface, the third slider is slidably arranged on the guide inclined surface, and further includes a third inclined top, the third slider is provided with a moving cavity, the third inclined top is slidably arranged in the moving cavity, the side of the third inclined top is provided with a molding groove, the molding groove constitutes part of the molding cavity, the guide inclined surface is provided with a guide groove, the groove bottom of the guide groove is the inclined top guide surface, the inclination angle of the inclined top guide surface is smaller than the inclination angle of the guide inclined surface, the bottom surface of the third inclined top contacts the inclined top guide surface, the side surface of the third inclined top is provided with an inclined guide slider, and the moving cavity is correspondingly provided with an inclined guide groove, the guide slider is located in the guide groove, when the third slider moves obliquely downward along the guide inclined surface, the third inclined top is driven by the third slider and moves along the inclined top guide surface, and the third inclined top gradually moves upward relative to the third slider; and under the guidance of the inclined guide slider and the guide groove, the third inclined top gradually moves obliquely upward relative to the third slider, so that the product is separated from the molding groove.

[0014] As a further optimization of the above technical solution: a ramp pin is provided in the third ramp pin, a second spring is sleeved on the ramp pin, a large pin hole and a small pin hole are formed in the third ramp pin, a spring step is formed between the large pin hole and the small pin hole, the ramp pin is passed through the large pin hole and the small pin hole, a positioning block is provided at the tail of the ramp pin, the positioning block is fixed on the third slider, the two ends of the second spring respectively conflict with the positioning block and the spring step, and in the mold closing state, the end face of the ramp pin and the bottom of the forming groove are located on the same plane; in the mold opening and core pulling process, the third ramp moves obliquely upward relative to the third slider, the end of the ramp pin gradually exposes the third ramp, assisting the product to separate from the forming groove, and the second spring is squeezed.

[0015] As a further optimization of the above technical solution: a spring mounting block is provided on the side of the third inclined top, and the spring mounting block is fixed on the third sliding block. The spring mounting block is provided with an obliquely arranged third spring, and a spring groove is also formed on the third inclined top, and the end of the third spring is located in the spring groove. The two ends of the third spring respectively conflict with the bottom of the spring groove and the spring mounting block. The inclination angle of the third spring is the same as the movement angle of the third inclined top obliquely upward. During the mold opening process, when the third inclined top moves obliquely upward relative to the third sliding block, the third spring is squeezed; during the mold closing process, the elastic force of the third spring is released and drives the third inclined top to reset.

[0016] As a further optimization of the above technical solution: it also includes a bending sheath and a fourth inclined top, the bending sheath is obliquely fixed at the bottom of the fourth slider, the fourth inclined top is slidably passed through the bending sheath, and the top of the fourth inclined top is provided with a forming protrusion that can enable the product to be invertedly formed, the fourth slider and the bending sheath move backward synchronously, and under the guidance of the inclined bending sheath, the fourth inclined top moves obliquely downward to make the forming protrusion separate from the product.

[0017] As a further optimization of the above technical solution: a spring base is also fixed on the movable mold, and a fourth spring is provided between the fourth inclined top and the spring base. When the fourth inclined top is pulled out of the core obliquely downward, the fourth spring is compressed; when the mold is re-closed, the elastic force of the fourth spring is released to reset the fourth inclined top.

[0018] As a further optimization of the above technical solution: the third power source is a cylinder, the cylinder rod of the cylinder is connected to the fourth slider, and the cylinder drives the fourth slider to move backward; a plurality of nitrogen springs are also installed on the fourth slider, and the ends of the nitrogen springs are in contact with the third slider.

[0019] As a further optimization of the above technical solution: several guide sliders are fixed to the bottom of the third slider, guide slider protrusions are provided on both sides of the bottom of the guide slider, several guide slider grooves are made on the guide inclined surface, and a guide slider groove is made in the middle of the guide slider groove. The bottom of the guide slider is located in the guide slider groove, and guide slider side blocks are provided on both sides of the guide slider, and the guide slider side blocks are fixed on the guide slider groove. The side surfaces of the guide slider side blocks are located above the guide slider protrusions, so that the guide slider is slidably installed in the guide slider groove.

[0020] Compared with the prior art, the present invention drives the first slider and the second slider to move obliquely upward for core pulling by the first oblique guide post and the second oblique guide post respectively, and realizes delayed core pulling of the second slider at the same time, so that the undercut on the first slider and the undercut on the second slider are subjected to segmented core pulling, thereby preventing the product from sticking to the sliders during simultaneous core pulling, which causes product damage and core pulling failure; when the first slider moves, the three groups of first oblique tops are driven to move horizontally for core pulling, and when the second slider moves, the head of the second oblique top is exposed from the second slider and moves horizontally for core pulling, and the first slider, the second slider, the first oblique top and the second oblique top can all be set according to the different core pulling directions required. The fourth slider is set to different inclined directions to meet the core pulling needs of the product in different directions and angles; the fourth slider is driven by the cylinder to move backward, and the third slider moves obliquely downward along the guide inclined surface relative to the fourth slider to pull the core. At the same time, the third inclined top gradually moves obliquely upward relative to the third slider to pull the core. At the same time, the fourth slider drives the bending sheath to move backward, so that the fourth inclined top moves obliquely downward to pull the core. The movement of the fourth slider realizes core pulling in different directions and angles of the third slider, the third inclined top and the fourth inclined top. The structure is compact, the space is small, the transmission is simple and reliable, the core pulling needs of the product in different directions and angles are met, and the core pulling of products with complex structures can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the exploded structure of the first slider 1, the second slider 2 and the structure thereon in the present invention.

[0023] Figure 3 It is a three-dimensional structural diagram of the third slider 4, the fourth slider 5 and the structure thereon in the present invention.

[0024] Figure 4 It is a schematic diagram of the exploded structure of the third slider 4, the fourth slider 5 and the structure thereon in the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the third inclined roof in the present invention.

[0026] In the figure, 1, first slider; 2, second slider; 21, second inclined guide hole; 22, second guide hole wall; 23, guide block; 231, guide protrusion; 24, second inclined top; 25, first spring; 26, mounting seat; 27, stopper; 3, first inclined top; 31, slide groove; 4, third slider; 41, movable cavity; 42, guide slide groove; 43, guide slider; 431, guide slide protrusion; 5, fourth slider; 51, guide inclined surface; 511, guide slide groove; 512, guide slide groove ; 52. Slanted top guide surface; 53. Guide sliding side block; 54. Nitrogen spring; 6. First inclined guide column; 7. Second inclined guide column; 8. Cylinder; 9. Moving template; 10. Third inclined top; 101. Spring step; 102. Spring groove; 11. Guide slider; 12. Molding groove; 13. Slanted top spring pin; 14. Second spring; 15. Positioning block; 16. Spring mounting block; 17. Third spring; 18. Bending sheath; 19. Fourth inclined top; 191. Molding protrusion; 20. Spring base. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Figure 1-5 As shown, the laminated slider core-pulling mechanism of the injection mold includes a first power source, a second power source, a first slider 1, and a second slider 2. The second slider 2 is slidably set on the movable plate 9, and the first slider 1 is slidably set above the second slider 2. A plurality of first inclined tops 3 are penetrated on the first slider 1. When the first power source drives the first slider 1 to move, the plurality of first inclined tops 3 are driven to move horizontally to pull the core. After the first slider 1 has completed its movement, the second power source drives the second slider 2 to move and pull the core. It also includes a third power source, a third slider 4, and a fourth slider 5. The second slider 2 is located above the third slider 4. The third slider 4 is slidably set on the fourth slider 5. When the third power source drives the fourth slider 5 to move backward, the third slider 4 moves obliquely downward relative to the fourth slider 5 to pull the core. The first slider 1, the first inclined tops 3, the second slider 2, the third slider 4, and the fourth slider 5 constitute part of the mold cavity.

[0028] In the above technical solution, the first power source includes a plurality of first oblique guide pillars 6, and the second power source includes a plurality of second oblique guide pillars 7. The ends of the first oblique guide pillars 6 and the second oblique guide pillars 7 are both connected to the fixed mold. The first slider 1 is formed with a plurality of first oblique guide holes, and the first oblique guide pillars 6 are inserted into the first oblique guide holes. The side surfaces of the first oblique guide pillars 6 contact the first guide hole walls of the first oblique guide holes. The second slider 2 is formed with a plurality of second oblique guide holes 21. The second oblique guide pillars 7 are inserted into the second oblique guide holes 21. The side surfaces of the second oblique guide pillars 7 are spaced apart from the second guide hole walls 22 of the second oblique guide holes 21. When the mold is opened, the fixed mold drives the first inclined guide post 6 and the second inclined guide post 7 to move upward relative to the first slider 1 and the second slider 2. The upward movement of the first inclined guide post 6 simultaneously drives the first slider 1 to move backward to pull the core. At this time, due to the distance between the side of the second inclined guide post 7 and the second guide hole wall 22 on the second inclined guide hole 21, the second inclined guide post 7 will not drive the second slider 2 to move when it first moves upward; until the second inclined guide post 7 moves up to contact the second guide hole wall 22, the upward movement of the second inclined guide post 7 drives the second slider 2 to move backward, causing the second slider 2 to delay its movement relative to the first slider 1; when the second slider 2 moves, the first slider 1 and the first inclined top 3 have completed core pulling. The delayed core pulling of the second slider 2 can realize the segmented core pulling of the undercut on the first slider 1 and the undercut on the second slider 2, preventing the product from sticking to the sliders during simultaneous core pulling, which may cause product damage and core pulling failure.

[0029] In the above technical solution, a guide block 23 is fixed to the second slider 2. The end of the guide block 23 is bent to form a guide protrusion 231. A slot 31 is formed at the rear end of the rod of the first lifter 3. The guide protrusion 231 is located within the slot 31, allowing the first lifter 3 to move along the guide protrusion 231, guiding the lateral movement of the first lifter 3 relative to the first slider 1. The guide block 23 is fixed to the second slider 2 rather than to the movable mold, reducing the length of the rod of the first lifter 3 and preventing the rod of the first lifter 3 from being broken or damaged due to excessive length. When the second slider 2 begins to move, the guide block 23 pulls the first lifter 3 and the first slider 1 to move synchronously.

[0030] In the above technical solution, there are three groups of first inclined roofs 3 in total, and the three groups of first inclined roofs 3 can be set to different inclined directions according to the required core pulling directions.

[0031] In the above technical solution, the second slider 2 is tilted on the movable template 9, the first slider 1 is tilted on the second slider 2, and both the first slider 1 and the second slider 2 move obliquely upward. Figure 1 Indicated by the arrow direction.

[0032] In the above technical solution, a second lifter 24 is inserted into the second slider 2. A first spring 25 and a mounting seat 26 are installed at the rear end of the second lifter 24. The mounting seat 26 is fixed to the second slider 2. The ends of the first spring 25 are connected to the second lifter 24 and the mounting seat 26, respectively. When the mold is closed, the first spring 25 is compressed. When the second slider 2 moves, it causes the mounting seat 26 to move backward synchronously. The release of the first spring 25 prevents the second lifter 24 from moving backward synchronously with the second slider 2, allowing the head of the second lifter 24 to emerge from the second slider 2 and perform lateral core pulling. A stopper 27 is mounted on the side of the second lifter 24. A limit hole is defined in the second slider 2, and the stopper 27 is movably positioned within the limit hole. When the stopper 27 contacts the wall of the limit hole, the second slider 2 drives the second lifter 24 to move backward synchronously. The stopper 27 limits the second lifter 24 during both the core pulling process and the return process, preventing the second lifter 24 from moving excessively and colliding with the movable mold. The first inclined top 3 and the second inclined top 24 can be set to different inclined directions according to the required core pulling direction. In this embodiment, the moving direction of each first inclined top 3 and the second inclined top 24 is as follows: Figure 2 As shown by the arrow directions in the figure (the arrows are located at the ends of each first inclined top 3 and second inclined top 24).

[0033] In the above technical solution, the third power source is a pneumatic cylinder 8, whose rod is connected to the fourth slider 5. Cylinder 8 drives the fourth slider 5 backward. Several nitrogen springs 54 are also mounted on the fourth slider 5. The ends of the nitrogen springs 54 abut against the third slider 4, assisting in the movement of the third slider 4 relative to the fourth slider 5.

[0034] In the above technical solution: the fourth slider 5 is formed with a guide bevel 51, and the third slider 4 is slidably arranged on the guide bevel 51. It also includes a third inclined top 10, the third slider 4 is formed with a moving cavity 41, the third inclined top 10 is slidably arranged in the moving cavity 41, and the side of the third inclined top 10 is formed with a molding groove 12, and the molding groove 12 constitutes part of the molding cavity. A guide groove is formed on the guide bevel 51, and the bottom of the guide groove is the inclined top guide surface 52. The inclination angle of the inclined top guide surface 52 is smaller than the inclination angle of the guide bevel 51, and the bottom surface of the third inclined top 10 is in contact with the inclined top guide surface 52. An inclined guide slider 11 is provided on the side of the third inclined top 10, and an inclined guide groove 42 is correspondingly provided in the moving cavity 41. The guide slider 11 is located in the guide groove 42. When the third slider 4 moves obliquely downward along the guide slope 51, the third inclined top 10 is driven by the third slider 4 and moves along the inclined top guide surface 52. Since the inclination angles of the inclined top guide surface 52 and the guide inclined surface 51 are different, the moving angle of the third slider 4 and the moving angle of the third inclined top 10 are different, and the third inclined top 10 gradually moves upward relative to the third slider 4; and under the guidance of the inclined guide slider 11 and the guide groove 42, the third inclined top 10 gradually moves obliquely upward relative to the third slider 4, so that the product is separated from the molding groove 12, thereby realizing the core pulling of the third inclined top 10.

[0035] In the above technical solution: a third slant top 10 is provided with a slant top elastic pin 13, and a second spring 14 is sleeved on the slant top elastic pin 13. Figure 5 As shown, a large elastic needle hole and a small elastic needle hole are formed in the third lifter 10, and a spring step 101 is formed between the large elastic needle hole and the small elastic needle hole. The lifter pin 13 is inserted into the large elastic needle hole and the small elastic needle hole. A positioning block 15 is provided at the tail of the lifter pin 13, and the positioning block 15 is fixed on the third slider 4. The two ends of the second spring 14 respectively contact the positioning block 15 and the spring step 101. When the mold is closed, the end face of the lifter pin 13 and the bottom of the molding groove 12 are located on the same plane; during the mold opening and core pulling process, the third lifter 10 moves obliquely upward relative to the third slider 4, and the end of the lifter pin 13 gradually exposes the third lifter 10, assisting the product to detach from the molding groove 12, and the second spring 14 is squeezed; when the mold is re-closed, the elastic force of the second spring 14 is released to ensure that the third lifter 10 and the lifter pin 13 are reset to their original positions. The lifter pin 13 prevents the product from sticking to the third lifter 10, ensuring smooth demolding of the product.

[0036] In the above technical solution, a spring mounting block 16 is provided on the side of the third inclined top 10, and the spring mounting block 16 is fixed on the third slider 4. A third spring 17 is provided on the spring mounting block 16. Figure 5As shown, the third lifter 10 is also formed with a spring slot 102. The end of the third spring 17 is located within the spring slot 102, with both ends of the third spring 17 respectively contacting the bottom of the spring slot 102 and the spring mounting block 16. The angle of inclination of the third spring 17 is the same as the angle of upward movement of the third lifter. During the mold opening process, the third spring 17 is compressed as the third lifter 10 moves upward relative to the third slide 4. During the mold closing process, the elastic force of the third spring 17 is released, causing the third lifter 10 to return to its original position.

[0037] In the above technical solution, a plurality of guide sliders 43 are fixed to the bottom of the third slider 4, and guide slider protrusions 431 are provided on both sides of the bottom of the guide slider 43. A plurality of guide slots 511 are formed on the guide inclined surface 51, and a guide groove 512 is formed in the middle of the guide slots 511. The bottom of the guide slider 43 is located in the guide groove 512. Guide side blocks 53 are provided on both sides of the guide slider 43. The guide side blocks 53 are fixed to the guide slots 511, and the side surfaces of the guide side blocks 53 are located above the guide protrusions 431, so that the guide slider 43 can be slidably installed in the guide slots 511.

[0038] The above technical solution also includes a sheath 18 and a fourth inclined top 19. The sheath 18 is fixed obliquely to the bottom of the fourth slider 5, and the fourth inclined top 19 is slidably installed on the sheath 18. The top of the fourth inclined top 19 is provided with a forming protrusion 191 that can form the product in an inverted manner. The cylinder 8 drives the fourth slider 5 and the sheath 18 to move backward synchronously. Under the guidance of the inclined sheath 18, the fourth inclined top 19 moves obliquely downward, so that the forming protrusion 191 is separated from the product. The moving direction of the fourth inclined top 19 is as follows: Figure 4 As shown by the arrow in the figure. A spring base 20 is also fixed to the movable mold. A fourth spring is provided between the fourth inclined top 19 and the spring base 20. When the fourth inclined top 19 is pulled downward, the fourth spring is compressed. When the mold is reclosed, the elastic force of the fourth spring is released, causing the fourth inclined top 19 to return to its original position.

[0039] The present invention operates as follows: During mold opening, the fixed mold drives the first and second inclined guide posts 6 and 7 upward relative to the first and second slides 1 and 2. The upward movement of the first inclined guide post 6 simultaneously drives the first slide 1 backward to extract the core, and the plurality of first inclined ejectors 3 are driven to move laterally to extract the core. When the second inclined guide post 7 moves upward to contact the second guide hole wall 22, the upward movement of the second inclined guide post 7 drives the second slide 2 backward, causing the second slide 2 to move laterally relative to the first slide 1. As the second slide 2 moves, the first slide 1 and the first inclined ejectors 3 have both completed their core extraction. At this point, the second slide 2, through the guide block 23, pulls the first inclined ejectors 3 and the first slide 1 in synchronous movement. Simultaneously, the movement of the second slide 2 drives the mounting seat 26 backward in sync. The release of the first spring 25 prevents the second inclined ejectors 24 from moving backward with the second slide 2, allowing the heads of the second inclined ejectors 24 to emerge from the second slide 2 and perform lateral core extraction.

[0040] The cylinder 8 drives the fourth slider 5 to move backward, and the nitrogen spring 54 plays an auxiliary pushing role in the movement of the third slider 4 relative to the fourth slider 5. The third slider 4 moves obliquely downward along the guide slope 51 relative to the fourth slider 5 to pull the core. The third inclined top 10 is driven by the third slider 4 and moves along the inclined top guide surface 52. Due to the different inclination angles of the inclined top guide surface 52 and the guide inclined surface 51, the third inclined top 10 gradually moves upward relative to the third slider 4; and under the guidance of the inclined guide slider 11 and the guide groove 42, the third inclined top 10 gradually moves obliquely upward relative to the third slider 4, so that the product is separated from the molding groove 12, realizing the core pulling of the third inclined top 10; in this process, the end of the inclined top spring pin 13 gradually exposes the third inclined top 10, assisting the product to separate from the molding groove 12, and the second spring 14 and the third spring 17 are squeezed.

[0041] When the fourth slider 5 moves backward, it drives the bending sheath 18 to move backward. Under the guidance of the inclined bending sheath 18, the fourth inclined top 19 moves obliquely downward, so that the forming protrusion 191 is separated from the product. At this time, the fourth spring is compressed.

[0042] In the present invention, the first oblique guide post 6 and the second oblique guide post 7 respectively drive the first slider 1 and the second slider 2 to move obliquely upward for core pulling, and at the same time realize the delayed core pulling of the second slider 2, so that the undercut on the first slider 1 and the undercut on the second slider 2 are segmented core pulling, to prevent the product from sticking to the sliders during simultaneous core pulling, which causes product damage and core pulling failure; when the first slider 1 moves, the three groups of first oblique tops 3 are driven to move horizontally for core pulling, and when the second slider 2 moves, the head of the second oblique top 24 is exposed from the second slider 2 and moves horizontally for core pulling, and the first oblique top 3 and the second oblique top 24 can be set to different inclined directions according to the required core pulling directions, so as to meet the requirements of the present invention. The core pulling requirements of the product in different directions and angles are met; the fourth slider 5 is driven backward by the cylinder 8, and the third slider 4 moves downward along the guide slope 51 relative to the fourth slider 5 to pull the core. At the same time, the third inclined top 10 gradually moves upward relative to the third slider 4 to pull the core. At the same time, the fourth slider 5 drives the bending sheath 18 to move backward, so that the fourth inclined top 19 moves downward obliquely to pull the core. The movement of the fourth slider 5 realizes the core pulling of the third slider 4, the third inclined top 10 and the fourth inclined top 19 in different directions and angles. The structure is compact, the space is small, the transmission is simple and reliable, which meets the core pulling requirements of the product in different directions and angles and realizes the core pulling of products with complex structures.

[0043] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should fall within the scope of protection of the present invention.

Claims

1. The laminated slider core pulling mechanism of the injection mold is characterized by The invention comprises a first power source, a second power source, a first slider (1) and a second slider (2), wherein the second slider (2) is slidably arranged on a movable plate (9), the first slider (1) is slidably arranged above the second slider (2), and a plurality of first inclined tops (3) are provided on the first slider (1). When the first power source drives the first slider (1) to move, the plurality of first inclined tops (3) are driven to move transversely to pull the core. After the first slider (1) has finished moving, the second power source drives the second slider (2) to move the core. It also includes a third power source, a third slider (4) and a fourth slider (5), wherein the second slider (2) is located above the third slider (4), and the third slider (4) is arranged on the fourth slider (5) in an oblique sliding manner. When the third power source drives the fourth slider (5) to move backward, the third slider (4) moves obliquely downward relative to the fourth slider (5) to perform core pulling; The fourth slider (5) is provided with a guide slope (51), the third slider (4) is slidably arranged on the guide slope (51), and further includes a third inclined top (10), the third slider (4) is provided with a moving cavity (41), the third inclined top (10) is slidably arranged in the moving cavity (41), the side surface of the third inclined top (10) is provided with a molding groove (12), the molding groove (12) constitutes a part of the molding cavity, the guide slope (51) is provided with a guide groove, the bottom of the guide groove is an inclined top guide surface (52), the inclination angle of the inclined top guide surface (52) is smaller than the inclination angle of the guide slope (51), the bottom surface of the third inclined top (10) is in contact with the inclined top guide surface (52), the An inclined guide slider (11) is provided on the side of the third inclined top (10), and an inclined guide slot (42) is correspondingly provided in the movable cavity (41). The guide slider (11) is located in the guide slot (42). When the third slider (4) moves obliquely downward along the guide inclined surface (51), the third inclined top (10) is driven by the third slider (4) and moves along the inclined top guide surface (52). The third inclined top (10) gradually moves upward relative to the third slider (4); and under the guidance of the inclined guide slider (11) and the guide slot (42), the third inclined top (10) gradually moves obliquely upward relative to the third slider (4), so that the product is separated from the forming groove (12).

2. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that A second inclined top (24) is provided inside the second slider (2), and a first spring (25) and a mounting seat (26) are provided at the tail of the second inclined top (24). The mounting seat (26) is fixed on the second slider (2). The two ends of the first spring (25) are respectively connected to the second inclined top (24) and the mounting seat (26). In the mold closing state, the first spring (25) is in a compressed state. When the second slider (2) moves, the mounting seat (26) is synchronously moved backward. The elastic force of the first spring (25) is released, so that the head of the second inclined top (24) is exposed from the second slider (2) and the core is pulled out laterally.

3. The laminated slider core-pulling mechanism of the injection mold according to claim 2, characterized in that A stopper (27) is installed on the side of the second inclined top (24), and a limiting hole is formed on the second slider (2). The stopper (27) is movably arranged in the limiting hole. When the stopper (27) contacts the hole wall of the limiting hole, the second slider (2) drives the second inclined top (24) to move backward synchronously.

4. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that The first power source includes a plurality of first inclined guide pillars (6), the second power source includes a plurality of second inclined guide pillars (7), the ends of the first inclined guide pillars (6) and the second inclined guide pillars (7) are both connected to the fixed mold, the first slider (1) is provided with a plurality of first inclined guide holes, the first inclined guide pillars (6) are inserted into the first inclined guide holes, and the side surfaces of the first inclined guide pillars (6) are in contact with the first guide hole walls of the first inclined guide holes, the second slider (2) is provided with a plurality of second inclined guide holes (21), the second inclined guide pillars (7) are inserted into the second inclined guide holes (21), and the side surfaces of the second inclined guide pillars (7) are in contact with the first guide hole walls of the first inclined guide holes. There is a distance between the second guide hole wall (22) and the second inclined guide hole (21). When the mold is opened, the fixed mold drives the first inclined guide column (6) and the second inclined guide column (7) to move upward. The upward movement of the first inclined guide column (6) simultaneously drives the first slider (1) to move backward to pull the core. When the second inclined guide column (7) moves upward to contact the second guide hole wall (22), the upward movement of the second inclined guide column (7) drives the second slider (2) to move backward, so that the second slider (2) moves with a delayed movement relative to the first slider (1). When the second slider (2) moves, the first slider (1) and the first inclined top (3) have completed core pulling.

5. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that The second slider (2) is obliquely arranged on the movable plate (9), and the first slider (1) is obliquely arranged on the second slider (2). Both the first slider (1) and the second slider (2) move obliquely upward.

6. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that A guide block (23) is fixed on the second sliding block (2), and the end of the guide block (23) is bent to form a guide protrusion (231). A sliding groove (31) is formed at the tail end of the rod of the first inclined top (3), and the guide protrusion (231) is located in the sliding groove (31) so that the first inclined top (3) moves along the guide protrusion (231).

7. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that There are three groups of the first inclined tops (3) in total, and the three groups of the first inclined tops (3) can be set to different inclination directions according to different required core pulling directions.

8. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that The third inclined top (10) is provided with an inclined top elastic pin (13), and the inclined top elastic pin (13) is sleeved with a second spring (14). The third inclined top (10) is provided with a large elastic pin hole and a small elastic pin hole, and a spring step (101) is formed between the large elastic pin hole and the small elastic pin hole. The inclined top elastic pin (13) is inserted into the large elastic pin hole and the small elastic pin hole. A positioning block (15) is provided at the tail of the inclined top elastic pin (13), and the positioning block (15) is fixed on the third slider (4). The two ends of the second spring (14) respectively contact the positioning block (15) and the spring step (101). In the mold closing state, the end face of the inclined top spring pin (13) and the bottom of the forming groove (12) are located on the same plane. During the mold opening and core pulling process, the third inclined top (10) moves obliquely upward relative to the third slider (4), and the end of the inclined top spring pin (13) gradually exposes the third inclined top (10), assisting the product to separate from the forming groove (12), and the second spring (14) is squeezed.

9. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that A spring mounting block (16) is provided on the side of the third inclined top (10), and the spring mounting block (16) is fixed on the third slider (4). A third spring (17) is provided on the spring mounting block (16). A spring groove (102) is also formed on the third inclined top (10), and the end of the third spring (17) is located in the spring groove (102). The two ends of the third spring (17) respectively conflict with the bottom of the spring groove (102) and the spring mounting block (16). The inclination angle of the third spring (17) is the same as the movement angle of the third inclined top obliquely upward. During the mold opening process, when the third inclined top (10) moves obliquely upward relative to the third slider (4), the third spring (17) is squeezed; during the mold closing process, the elastic force of the third spring (17) is released and drives the third inclined top (10) to reset.

10. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that The invention also includes a bending sheath (18) and a fourth inclined top (19), wherein the bending sheath (18) is fixed obliquely on the bottom of the fourth slider (5), and the fourth inclined top (19) is slidably penetrated on the bending sheath (18). The top of the fourth inclined top (19) is provided with a forming protrusion (191) that can form a product in an inverted manner. The fourth slider (5) and the bending sheath (18) move backward synchronously, and under the guidance of the inclined bending sheath (18), the fourth inclined top (19) moves obliquely downward, so that the forming protrusion (191) is separated from the product.

11. The laminated slider core-pulling mechanism of the injection mold according to claim 10, characterized in that A spring base (20) is also fixed on the movable mold, and a fourth spring is provided between the fourth inclined top (19) and the spring base (20). When the fourth inclined top (19) is pulled downward, the fourth spring is compressed; when the mold is re-closed, the elastic force of the fourth spring is released, so that the fourth inclined top (19) is reset.

12. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that The third power source is a cylinder (8), the cylinder rod of the cylinder (8) is connected to the fourth slider (5), and the cylinder (8) drives the fourth slider (5) to move backward; a plurality of nitrogen springs (54) are also installed on the fourth slider (5), and the ends of the nitrogen springs (54) are in contact with the third slider (4).

13. The laminated slider core-pulling mechanism of the injection mold according to claim 1, characterized in that A plurality of guide sliders (43) are fixed to the bottom of the third slider (4), and guide slider protrusions (431) are provided on both sides of the bottom of the guide slider (43). A plurality of guide slide grooves (511) are formed on the guide inclined surface (51), and a guide slide groove (512) is formed in the middle of the guide slide groove (511). The bottom of the guide slider (43) is located in the guide slide groove (512), and guide slide side blocks (53) are provided on both sides of the guide slider (43). The guide slide side blocks (53) are fixed on the guide slide groove (511), and the side surfaces of the guide slide side blocks (53) are located above the guide slide protrusions (431), so that the guide slider (43) is slidably installed in the guide slide groove (511).

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