A highly integrated slider injection molding structure and demolding process for vacuum cleaner plastic parts

Abstract

This invention provides a highly integrated slider injection molding structure and demolding process for plastic parts in a vacuum cleaner. The invention includes a first core-pulling section and a second core-pulling section. The first core-pulling section includes a first core-pulling forming block and a first core-pulling power component. One end of the first core-pulling forming block is provided with a first forming end for forming a first mounting groove. The first core-pulling power component drives the first core-pulling forming block to move. The second core-pulling section includes a second core-pulling forming block and a second core-pulling power component. One end of the second core-pulling forming block is connected to the third core-pulling power component, and the other end of the third core-pulling forming block is a third forming end. The third core-pulling forming block passes through the second core-pulling forming block, and the third forming end is located at the corner of the wall of the formed second mounting groove.

Description

Technical Field

[0001] This invention relates to injection molds, and more particularly, to a highly integrated slider injection molding structure and demolding process for vacuum cleaner plastic parts. Background Technology

[0002] The structure of the vacuum cleaner plastic part to be injection molded is as described in the specification attached to this application. Figure 1 and appendix Figure 2 As shown, its main structure includes a main body a, with a receiving cavity b formed inside the main body a. A molding surface c is provided on one side of the main body a, and a first mounting slot d and a second mounting slot e are respectively provided on the molding surface c. The overall groove shape of the second mounting slot e is much larger than that of the first mounting slot d, and the second mounting slot e is connected to the receiving cavity b.

[0003] For injection molding the aforementioned vacuum cleaner plastic part, the traditional injection mold design involves multiple core-pulling structures on one side of the molding surface c. The first core-pulling structure is used to mold the first mounting slot d, and the second core-pulling structure is used to mold the second mounting slot e. Since the second mounting slot e is very large, in actual injection molding production, using a single core-pulling block structure results in a large contact area between the end face of the core-pulling block and the wall of the second mounting slot e during demolding. This can easily lead to adhesion and tearing, especially at the corners of the second mounting slot wall. Summary of the Invention

[0004] In view of this, the first objective of the present invention is to provide a highly integrated slider injection molding structure for vacuum cleaner plastic parts, which can effectively improve the injection molding quality of plastic parts.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] A highly integrated slider injection molding structure for a vacuum cleaner plastic part includes a first core-pulling part and a second core-pulling part. The first core-pulling part includes a first core-pulling forming block and a first core-pulling power component. One end of the first core-pulling forming block is provided with a first forming end for forming a first mounting groove. The first core-pulling power component is used to drive the first core-pulling forming block to move.

[0007] The second core-pulling part includes a second core-pulling forming block and a second core-pulling power component. One end of the second core-pulling forming block is provided with a second forming end for forming a second mounting groove. The second core-pulling power component is used to drive the second core-pulling forming block to move.

[0008] It also includes a third core-pulling part, which includes a third core-pulling forming block and a third core-pulling power component. One end of the third core-pulling forming block is connected to the third core-pulling power component and is used to drive the third core-pulling forming block to move. The other end of the third core-pulling forming block is a third forming end. The third forming end and the second forming end cooperate with each other to form the groove wall of the second mounting slot.

[0009] The third core-pulling forming block penetrates through the second core-pulling forming block, and the third forming end is located at the corner of the formed second mounting groove wall.

[0010] Through the above technical solution, after the injection molding of the plastic parts of the vacuum cleaner is completed, the first core-pulling power component can drive the first core-pulling molding block to move, and the first molding end of the first core-pulling molding block can be correspondingly injection molded into the first mounting groove. The third core-pulling power component first drives the third core-pulling molding block to move, and the third molding end of the third core-pulling molding block is first pulled out from the groove wall of the second mounting groove. Then the second core-pulling power component drives the second core-pulling molding block to move, and the second molding end of the second core-pulling molding block can be separated from the groove wall of the second mounting groove. At this point, the core-pulling is completed.

[0011] During the aforementioned core-pulling process, the third molding end of the third core-pulling molding block located at the corner of the second mounting groove wall is pulled out first. This controls the effective contact area between the second mounting groove wall and the second molding end of the second molding block, significantly reducing the probability of adhesion and tearing between the molding block and the second mounting groove wall. Positioning it at the corner of the second mounting groove wall further reduces the likelihood of adhesion and tearing. Furthermore, by fully utilizing the structural characteristics of the second core-pulling molding block and embedding the third core-pulling molding block within it, the overall size of the injection molding structure is significantly reduced, resulting in a highly compact structure.

[0012] Preferably, there are two or more third core-pulling molding blocks, and the third molding ends of all the third core-pulling molding blocks are located at the corners of the wall of the second mounting slot.

[0013] Through the above technical solution, since the third molding end and the second molding end cooperate with each other to form the groove wall of the second mounting groove, and two or more third core-pulling molding blocks are set, the contact area between the second molding end and the groove wall of the second mounting groove is further controlled by pulling out the two or more third core-pulling molding blocks first, thereby further reducing the possibility of adhesion and tearing.

[0014] Preferably, it also includes a moving mold, and the first core-pulling power component includes a first core-pulling power block. One end of the first core-pulling power block and the end of the first core-pulling forming block cooperate with each other through a T-shaped groove and a T-shaped slider, and the other end of the first core-pulling power block is connected to the moving mold.

[0015] With the above technical solution, during the mold opening process, the moving mold can pull the first core-pulling power block to move. The first core-pulling power block can be connected to the first core-pulling forming block through a T-slot and a T-slider, thereby driving the first core-pulling forming block to move. With the above structure, there is no need to add other additional power sources, the structure is more compact, and the manufacturing cost is reduced.

[0016] Preferably, the second core-pulling power component includes a second core-pulling power rod, the second core-pulling forming block is provided with a second core-pulling power hole, one end of the second core-pulling power rod is connected to the moving mold, and the other end of the second core-pulling power rod is obliquely inserted into the second core-pulling power hole.

[0017] Through the above technical solution, the moving mold can also pull the second core-pulling power rod. The second core-pulling power rod cooperates with the second core-pulling power hole to drive the second core-pulling forming block to move. The driving stability is high and the structure is compact.

[0018] Preferably, the diameter of the second core-pulling power hole is larger than the diameter of the second core-pulling power rod;

[0019] It also includes a limiting part that can extend between the second core-pulling forming block and the third core-pulling power block, and the limiting part is used to restrict the sliding movement of the second core-pulling forming block and the third core-pulling power block.

[0020] Through the above technical solution, firstly, when it is necessary to drive the second core-pulling block to move, since the diameter of the second core-pulling power hole is larger than the diameter of the second core-pulling power rod, the second core-pulling power rod will only abut against the wall of the second core-pulling power hole after moving a certain distance. Therefore, the function of delaying the pushing of the second core-pulling block can be achieved. Combined with the core-pulling action of the first core-pulling block, the first core-pulling block is first pulled out from the first mounting slot, and then the second core-pulling block is pulled out from the second mounting slot. The cores are pulled out in sequence, making the side molding quality of the plastic part more stable.

[0021] Secondly, when the structure is being injection molded, the limiting part can be inserted between the second core-pulling block and the second core-pulling power block, and the limiting part restricts the sliding movement of the second core-pulling block and the third core-pulling power block, making the injection molding effect more stable; in addition, the limiting part can simultaneously limit the second core-pulling block and the third core-pulling power block, resulting in a high structural compactness.

[0022] Preferably, the limiting part includes a first limiting block and a limiting drive member. The second core-pulling forming block has a limiting surface on its side wall away from the second forming end. The third core-pulling forming block has a limiting groove. The limiting drive member is used to drive the first limiting block to move. The end of the first limiting block can be inserted into the limiting groove and abut against the limiting surface for limiting.

[0023] Through the above technical solution, the limiting drive component drives the first limiting block to move, and the end of the first limiting block can be inserted into the limiting groove of the third core-pulling block. The end of the first limiting block will also abut against the limiting surface. At this time, the second core-pulling block and the third core-pulling block can be abutted and limited by the first limiting block.

[0024] Preferably, the limiting part further includes a second limiting block, and the limiting drive component includes a limiting drive cylinder. The cylinder head of the limiting drive cylinder is connected to the second limiting block. The first limiting block and the second limiting block cooperate with each other through a T-shaped inclined groove and a T-shaped inclined slider. The second limiting block can drive the first limiting block to move.

[0025] Through the above technical solution, the limit drive cylinder drives the second limit block to move, and the second limit block drives the first limit block to move, resulting in relatively high driving efficiency and driving stability.

[0026] Preferably, the first core-pulling power block is provided with a receiving groove;

[0027] When the end of the first limiting block is inserted into the limiting groove and abuts against the limiting surface, the side wall of the second limiting block abuts against the wall of the receiving groove, thereby restricting the movement of the first limiting block.

[0028] Through the above technical solution, during the injection molding process, the wall of the receiving groove on the first core-pulling power block abuts against the side wall of the second limiting block, thereby restricting the movement of the first limiting block. The overall injection molding integration is higher and the injection molding stability is higher.

[0029] Preferably, the third core-pulling molding block is provided with a third molding channel, one end of the third molding channel is connected to the limiting groove, and the other end of the third molding channel is connected to the side wall of the third core-pulling molding block near the third molding end.

[0030] The third forming channel is equipped with a third forming component and a third resetting component. The two ends of the third forming component are a third forming drive end and a third forming ejection end, respectively. The third forming drive end can extend into the limiting groove, and the third forming ejection end can extend out a third core-pulling forming block close to the side wall of the third forming end. The resetting force of the third resetting component acts on the third forming component.

[0031] When the first limiting block is inserted into the limiting groove, the first limiting block can abut against the third molding drive end, thereby driving the third molding ejection end to protrude beyond the side wall of the third core-pulling molding block near the third molding end.

[0032] After the first limiting block exits from the limiting groove, the third reset member pushes the third forming member, the third forming ejector end moves into the third forming channel, and the third forming drive end can move into the limiting groove.

[0033] With the above technical solution, when it is necessary to injection mold the plastic parts of the vacuum cleaner, the first limiting block will be inserted into the limiting groove. The first limiting block can abut against the third molding drive end, thereby driving the third molding ejector end to protrude beyond the side wall of the third core-pulling molding block near the third molding end. Then, during injection molding, the third molding ejector end protruding beyond the side wall of the third core-pulling molding block near the third molding end can form a hole on the side wall of the plastic part. This hole can be used for later accessories.

[0034] After the plastic part of the vacuum cleaner with holes is injection molded, the first limiting block gradually exits from the limiting groove, the third resetting part pushes the third molding part, the third molding ejector end moves into the third molding channel, the third molding drive end can move into the limiting groove, and then the third core-pulling molding block moves to achieve the core-pulling effect.

[0035] The above structure not only achieves the function of forming holes in the plastic parts of the vacuum cleaner, but also makes full use of the driving force of the original first limiting block without the need for an additional power source. It also makes full use of the internal space of the third core-pulling block, so the volume of the entire injection molding structure is optimally controlled and highly integrated.

[0036] The second objective of this invention is to provide a demolding process that can effectively improve the injection molding quality of plastic parts.

[0037] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0038] A demolding process for a highly integrated slider injection molding structure for vacuum cleaner plastic parts:

[0039] S1: The moving mold drives the first core-pulling power block and the second core-pulling power rod to move, and the groove wall of the receiving groove on the first core-pulling power block is separated from the second limiting block;

[0040] S2: The limit drive cylinder drives the first limit block to move through the second limit block, and the first limit block disengages from the limit groove and the limit surface;

[0041] S3: The third core-pulling power component drives the third core-pulling power component to move away from the side of the already injection-molded vacuum cleaner plastic part.

[0042] S4: The outer wall of the second core-pulling power rod abuts against the wall of the second core-pulling power hole, and the second core-pulling power rod drives the first core-pulling forming block to move away from the injection-molded vacuum cleaner plastic part; the core-pulling of the vacuum cleaner plastic part is completed.

[0043] Through the above technical solution, the positions of each core-pulling block and power rod are stable during the injection molding process, the overall core-pulling action is highly continuous, and the corresponding structure of the plastic part can be formed in sequence. The overall integration of the molding structure is high, which can effectively improve the injection molding quality of the plastic part. Attached Figure Description

[0044] Figure 1 Schematic diagram of the structure of the plastic part of the vacuum cleaner to be injection molded Figure 1 This is used to highlight the overall structure of the plastic parts of the vacuum cleaner;

[0045] Figure 2 Schematic diagram of the structure of the plastic part of the vacuum cleaner to be injection molded Figure 2 It is used to highlight the structural positions of the molded surface, the first mounting slot, and the second mounting slot of the vacuum cleaner's plastic parts;

[0046] Figure 3 This is a schematic diagram of the structure from the main viewpoint of Embodiment 1. Figure 1 ;

[0047] Figure 4 This is a structural schematic diagram from the rear viewpoint of Embodiment 1;

[0048] Figure 5 This is a schematic diagram of the rear view structure of Embodiment 1;

[0049] Figure 6 This is an exploded view of the structure of Example 1;

[0050] Figure 7 This is a partial cross-sectional schematic diagram of Example 2;

[0051] Figure 8 for Figure 7 Enlarged view of part A;

[0052] Figure 9 for Figure 7 Enlarged view of part B.

[0053] Reference numerals: a. Main body; b. Receiving cavity; c. Molding surface; d. First mounting slot; e. Second mounting slot; 1. First core-pulling part; 11. First core-pulling molding block; 111. First molding end; 12. First core-pulling power component; 121. First core-pulling power block; 1212. Receiving slot; 2. Second core-pulling part; 21. Second core-pulling molding block; 211. Limiting surface; 212. Second core-pulling power hole; 211. Second molding end; 22. Second core-pulling power component; 221. Second core-pulling power rod; 3. Third core-pulling part; 31. Third core-pulling molding block; 311. Third molding end; 32. Third core-pulling power component; 4. Limiting part; 41. First limiting block; 42. Limiting drive component; 421 1. Limiting drive cylinder; 43. Limiting groove; 44. Second limiting block; 5. Third forming channel; 6. Third forming part; 61. Third forming drive end; 62. Third forming ejection end; 63. Third forming main rod; 64. Third forming auxiliary rod; 65. Connecting piece; 7. Third reset part; 8. Fourth forming part; 81. Fourth forming drive end; 82. Fourth forming ejection end; 83. Fourth forming main rod; 84. Fourth forming auxiliary rod; 9. Inclined guide surface; 10. Fourth reset part; 13. Roller; 14. Fifth reset spring; 15. Fifth drive rod; 16. First drive tooth surface; 17. Second drive tooth surface; 18. Gear; 19. Sixth reset spring; 20. First limiting cylinder; 23. Protrusion. Detailed Implementation

[0054] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and mastered. Example 1

[0055] A highly integrated slider injection molding structure for vacuum cleaner plastic parts is disclosed. This injection molding structure is used for injection molding vacuum cleaner plastic parts.

[0056] The injection molding structure includes a first core-pulling section 1, a second core-pulling section 2, and a third core-pulling section 3.

[0057] The system also includes a moving mold (not shown in the figure). The first core-pulling part 1 includes a first core-pulling forming block 11 and a first core-pulling power component 12. One end of the first core-pulling forming block 11 is provided with a first forming end 111 for forming a first mounting groove d. The first core-pulling power component 12 is used to drive the first core-pulling forming block 11 to move. The first core-pulling power component 12 includes a first core-pulling power block 121. One end of the first core-pulling power block 121 is engaged with the end of the first core-pulling forming block 11 through a T-slot and a T-slider. The other end of the first core-pulling power block 121 is connected to the moving mold, and the moving mold can drive the first core-pulling power block 121 to move.

[0058] The second core-pulling part 2 includes a second core-pulling forming block 21 and a second core-pulling power component 22. One end of the second core-pulling forming block 21 is provided with a second forming end 211 for forming the second mounting slot e. The second core-pulling power component 22 drives the second core-pulling forming block 21 to move. The second core-pulling power component 22 includes a second core-pulling power rod 221. The second core-pulling forming block 21 has a second core-pulling power hole 212. One end of the second core-pulling power rod 221 is connected to the moving mold, and the other end is obliquely inserted into the second core-pulling power hole 212. The diameter of the second core-pulling power hole 212 is larger than the diameter of the second core-pulling power rod 221.

[0059] The system also includes a third core-pulling section 3, which includes a third core-pulling forming block 31 and a third core-pulling power component 32. One end of the third core-pulling forming block 31 is connected to the third core-pulling power component 32 and is used to drive the third core-pulling forming block 31 to move. The other end of the third core-pulling forming block 31 is a third forming end 311. The third forming end 311 cooperates with the second forming end 211 to form the groove wall of the second mounting slot e. The third core-pulling forming block 31 passes through the second core-pulling forming block 21, and the third forming end 311 is located at the corner of the groove wall of the formed second mounting slot e.

[0060] The number of the third core-pulling molding blocks 31 is two or more; in this embodiment, the number of third core-pulling molding blocks 31 is two. The third molding ends 311 of all the third core-pulling molding blocks 31 are located at the corners of the wall of the molded second mounting slot e.

[0061] In addition, a limiting part 4 is provided, which can extend between the second core-pulling molding block 21 and the third core-pulling power block. The limiting part 4 is used to restrict the sliding movement of the second core-pulling molding block 21 and the third core-pulling power block.

[0062] The limiting part 4 includes a first limiting block 41, a limiting drive member 42, and a second limiting block 44. The second core-pulling forming block 21 has a limiting surface 211 on its side wall opposite to the second forming end 211, and the third core-pulling forming block 31 has a limiting groove 43. The limiting drive member 42 is used to drive the first limiting block 41 to move. The end of the first limiting block 41 can be inserted into the limiting groove 43 and abut against the limiting surface 211 for limiting. The limiting drive member 42 includes a limiting drive cylinder 421. The cylinder head of the limiting drive cylinder 421 is connected to the second limiting block 44. The first limiting block 41 and the second limiting block 44 cooperate with each other through a T-shaped inclined groove and a T-shaped inclined slider. The second limiting block 44 can drive the first limiting block 41 to move.

[0063] The first core-pulling power block 121 is provided with a receiving groove 1212; when the end of the first limiting block 41 is inserted into the limiting groove 43 and abuts against the limiting surface 211, the side wall of the second limiting block 44 abuts against the groove wall of the receiving groove 1212, thereby restricting the movement of the first limiting block 41.

[0064] Example 2: Based on Example 1, the following structure is added:

[0065] The third core-pulling molding block 31 is provided with a third molding channel 5. One end of the third molding channel 5 is connected to the limiting groove 43, and the other end of the third molding channel 5 is connected to the side wall of the third core-pulling molding block 31 near the third molding end 311.

[0066] The third molding channel 5 is equipped with a third molding component 6 and a third reset component 7. The two ends of the third molding component 6 are a third molding drive end 61 and a third molding ejection end 62, respectively. The third molding drive end 61 can extend into the limiting groove 43, and the third molding ejection end 62 can extend out a third core-pulling molding block 31 close to the side wall of the third molding end 311. The reset force of the third reset component 7 acts on the third molding component 6.

[0067] When the first limiting block 41 is inserted into the limiting groove 43, the first limiting block 41 can abut against the third molding drive end 61, thereby driving the third molding ejection end 62 to protrude beyond the side wall of the third core-pulling molding block 31 near the third molding end 311.

[0068] When the first limiting block 41 exits from the limiting groove 43, the third reset member 7 pushes the third forming member 6, the third forming ejector end 62 moves into the third forming channel 5, and the third forming drive end 61 can move into the limiting groove 43.

[0069] The third molding component 6 includes a third molding main rod 63 and a third molding auxiliary rod 64. The middle part of the third molding main rod 63 is rotatably connected to the third molding channel 5. The third molding drive end 61 is located at the end of the third molding main rod 63. The third molding auxiliary rod 64 is located on the side of the third molding main rod 63 away from the third molding drive end 61. A connecting piece 65 is hinged between the end of the third molding auxiliary rod 64 and the end of the third molding main rod 63. The two ends of the connecting piece 65 are respectively hinged to the end of the third molding auxiliary rod 64 and the end of the third molding main rod 63. The third molding ejection end 62 is located at the end of the third molding auxiliary rod 64 away from the end of the third molding main rod 63.

[0070] The third reset member 7 includes a third reset spring, which is installed on the side near the third molding drive end 61. The third reset member 7 can push the third molding drive end 61 to move into the limiting groove 43.

[0071] Therefore, when the first limiting block 41 is inserted into the limiting groove 43, the first limiting block 41 can abut against the third molding drive end 61 of the third molding main rod 63, the third molding main rod 63 will squeeze the third reset spring, and the other end of the third molding main rod 63 will drive the third molding auxiliary rod 64 to move away from the side wall close to the third molding end 311 through the connecting piece 65, thereby forming a hole on the surface of the plastic part;

[0072] When demolding is required, the first limiting block 41 gradually exits from the limiting groove 43, and the third reset spring pushes the third molding drive end 61 of the third molding main rod 63 to move into the limiting groove 43. The other end of the third molding main rod 63 will drive the third molding auxiliary rod 64 to move into the third molding channel 5 through the connecting piece 65. Then, with the movement of the third core-pulling molding block 31, demolding is achieved.

[0073] Example 3: The difference from Example 2 is as follows:

[0074] A fourth molding component 8 is slidably connected within the second core-pulling molding block 21. The fourth molding component 8 includes a fourth molding drive end 81 and a fourth molding ejection end 82. The fourth molding drive end 81 is located near the first limiting block 41. The side wall of the first limiting block 41 is provided with an inclined guide surface 9. When the first limiting block 41 is inserted into the limiting groove 43, the inclined guide surface 9 abuts and presses against the fourth molding drive end 81, and the fourth molding ejection end 82 moves to abut against the side wall of the third molding ejection end 62.

[0075] It also includes a fourth reset member 10, which includes a fourth reset spring that can drive the fourth molding member 8 to move toward the side closer to the fourth molding drive end 81.

[0076] Therefore, during the process of the first limiting block 41 being inserted into the limiting groove 43, the end of the first limiting block 41 first abuts against the third molding drive end 61, and the third molding ejection end 62 extends beyond the third core-pulling molding block 31; then, the inclined guide surface 9 on the first limiting block 41 gradually abuts against the fourth molding drive end 81, and the fourth molding ejection end 82 gradually moves to the position abutting against the side wall of the third molding end 311; this structure can not only form an L-shaped hole in the plastic part, which can be used to connect other accessories, but also makes full use of the driving force of the first limiting block 41 to achieve the function of delayed ejection and mutual contact of the two parts, with a compact structure and good injection molding effect of the plastic part; in addition, when the first limiting block 41 is gradually pulled out from the limiting groove 43, the fourth return spring can drive the fourth molding part 8 to return to the initial position, which is the fourth molding drive end 81 protruding beyond the groove wall of the limiting groove 43 and the fourth molding ejection end 82 moving into the interior of the second core-pulling molding block 21.

[0077] Among them, a roller 13 is installed on the fourth molding drive end 81.

[0078] Therefore, the roller 13 can reduce the contact friction between the fourth forming drive end 81 and the inclined guide surface 9, making the drive smoother.

[0079] The fourth molding component 8 includes a fourth molding main rod 83 and a fourth molding auxiliary rod 84. The fourth molding drive end 81 is located at the end of the fourth molding main rod 83, and the fourth molding ejection end 82 is located at the end of the fourth molding auxiliary rod 84. A fifth reset spring 14 is connected between the fourth molding main rod 83 and the fourth molding auxiliary rod 84.

[0080] Therefore, the first limiting block 41 pushes the fourth molding main rod 83 to move, and the fourth molding main rod 83 pushes the fourth molding auxiliary rod 84 to move through the fifth return spring 14. When the fourth molding ejector end 82 abuts against the side wall of the third molding ejector end 62, the elastic force of the fifth return spring 14 can be used to enhance the contact stability between the fourth molding ejector end 82 and the side wall of the third molding ejector end 62, and the injection molding quality is further improved. In addition, if the fourth molding ejector end 82 is worn after long-term use, the fifth return spring 14 can further push the fourth molding auxiliary rod 84 closer to the third molding ejector end 62, and the actual service life is greatly improved.

[0081] A fifth drive rod 15 is slidably connected to the second core-pulling forming block 21. A gear 18 is rotatably mounted on the second core-pulling forming block 21. The outer wall of the fifth drive rod 15 is provided with a first drive tooth surface 16, and the outer wall of the fourth forming main rod 83 is provided with a second drive tooth surface 17. The gear 18 meshes with both the first drive tooth surface 16 and the second drive tooth surface 17. A sixth return spring 19 is connected between the fifth drive rod 15 and the second core-pulling forming block 21. The sixth return spring 19 drives the fourth forming part 8 to move closer to the fourth forming drive end 81 through the fifth drive rod 15 and the gear 18.

[0082] A first limiting cylinder 20 is installed on the first limiting block 41, and a protrusion 23 is slidably connected to the first limiting block 41. The first limiting cylinder 20 can drive the protrusion 23 to slide. When the first limiting block 41 is inserted into the limiting groove 43, the first limiting cylinder 20 drives the protrusion 23 to move and abut against the fifth driving rod 15. The fifth driving rod 15 drives the fourth molding part 8 to move closer to the fourth molding ejection end 82 through the gear 18.

[0083] Therefore, when the first limiting block 41 is inserted into the limiting groove 43, the fourth molding ejector end 82 moves to the outside of the second core-pulling molding block 21, and the third molding ejector end 62 moves to the outside of the third core-pulling molding block 31. The first limiting cylinder 20 drives the protrusion 23 to move, and the protrusion 23 abuts against the fifth driving rod 15. The fifth driving rod 15 overcomes the elastic force of the sixth return spring 19 and drives the gear 18 to rotate. The gear 18 drives the fourth molding main rod 83 to move. The fourth molding main rod 83 pushes the end of the fourth molding auxiliary rod 84 to further press against the third molding ejector end 62 through the fifth return spring 14. This can further enhance the contact stability between the sidewall of the fourth molding ejector end 82 and the third molding ejector end 62, and further improve the injection molding quality. Example 4

[0084] A demolding process for a highly integrated slider injection molding structure for vacuum cleaner plastic parts as described in Embodiment 1, Embodiment 2, or Embodiment 3 above:

[0085] S1: The moving mold drives the first core-pulling power block 121 and the second core-pulling power rod 221 to move, and the groove wall of the receiving groove 1212 on the first core-pulling power block 121 disengages from the second limiting block 44.

[0086] S2: The limit drive cylinder 421 drives the first limit block 41 to move through the second limit block 44, and the first limit block 41 disengages from the limit groove 43 and the limit surface 211.

[0087] S3: The third core-pulling power component 32 drives the third core-pulling power component 32 to move away from the side of the injection-molded vacuum cleaner plastic part;

[0088] S4: The outer wall of the second core-pulling power rod 221 abuts against the wall of the second core-pulling power hole 212, and the second core-pulling power rod 221 drives the first core-pulling forming block 11 to move away from the side of the already injection-molded vacuum cleaner plastic part; the core-pulling of the vacuum cleaner plastic part is completed.

[0089] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. A highly integrated slider injection molding structure for a vacuum cleaner plastic part, comprising a first core-pulling part (1) and a second core-pulling part (2), characterized in that: The first core-pulling part (1) includes a first core-pulling forming block (11) and a first core-pulling power component (12). One end of the first core-pulling forming block (11) is provided with a first forming end (111) for forming a first mounting groove (d). The first core-pulling power component (12) is used to drive the first core-pulling forming block (11) to move. The second core-pulling part (2) includes a second core-pulling forming block (21) and a second core-pulling power member (22). One end of the second core-pulling forming block (21) is provided with a second forming end (211) for forming the second mounting groove (e). The second core-pulling power member (22) is used to drive the second core-pulling forming block (21) to move. It also includes a third core-pulling part (3), which includes a third core-pulling forming block (31) and a third core-pulling power component (32). One end of the third core-pulling forming block (31) is connected to the third core-pulling power component (32) and is used to drive the third core-pulling forming block (31) to move. The other end of the third core-pulling forming block (31) is a third forming end (311). The third forming end (311) and the second forming end (211) cooperate with each other to form the groove wall of the second mounting slot (e). The third core-pulling forming block (31) passes through the second core-pulling forming block (21), and the third forming end (311) is located at the corner of the wall of the formed second mounting slot (e).

2. The highly integrated slider injection molding structure for a vacuum cleaner plastic part according to claim 1, characterized in that: The number of the third core-pulling molding blocks (31) is two or more, and the third molding end (311) of all the third core-pulling molding blocks (31) is located at the corner of the groove wall of the second mounting slot (e) formed.

3. The highly integrated slider injection molding structure for a vacuum cleaner plastic part according to claim 1, characterized in that: It also includes a moving mold. The first core-pulling power component (12) includes a first core-pulling power block (121). One end of the first core-pulling power block (121) and the end of the first core-pulling forming block (11) cooperate with each other through a T-shaped groove and a T-shaped slider. The other end of the first core-pulling power block (121) is connected to the moving mold.

4. The highly integrated slider injection molding structure for a vacuum cleaner plastic part according to claim 3, characterized in that: The second core-pulling power component (22) includes a second core-pulling power rod (221), and the second core-pulling forming block (21) is provided with a second core-pulling power hole (212). One end of the second core-pulling power rod (221) is connected to the moving mold, and the other end of the second core-pulling power rod (221) is inserted obliquely into the second core-pulling power hole (212).

5. The highly integrated slider injection molding structure for a vacuum cleaner plastic part according to claim 4, characterized in that: The diameter of the second core-pulling power hole (212) is larger than the diameter of the second core-pulling power rod (221); It also includes a limiting part (4), which can extend between the second core-pulling forming block (21) and the third core-pulling power block. The limiting part (4) is used to restrict the sliding movement of the second core-pulling forming block (21) and the third core-pulling power block.

6. The highly integrated slider injection molding structure for a vacuum cleaner plastic part according to claim 5, characterized in that: The limiting part (4) includes a first limiting block (41) and a limiting drive member (42). The second core-pulling forming block (21) has a limiting surface (211) on its side wall away from the second forming end (211). The third core-pulling forming block (31) has a limiting groove (43). The limiting drive member (42) is used to drive the first limiting block (41) to move. The end of the first limiting block (41) can be inserted into the limiting groove (43) and abut against the limiting surface (211) for limiting.

7. The highly integrated slider injection molding structure for a vacuum cleaner plastic part according to claim 6, characterized in that: The limiting part (4) further includes a second limiting block (44), and the limiting drive member (42) includes a limiting drive cylinder (421). The cylinder head of the limiting drive cylinder (421) is connected to the second limiting block (44). The first limiting block (41) and the second limiting block (44) cooperate with each other through a T-shaped inclined groove and a T-shaped inclined slider. The second limiting block (44) can drive the first limiting block (41) to move.

8. The highly integrated slider injection molding structure for a vacuum cleaner plastic part according to claim 7, characterized in that: The first core-pulling power block (121) is provided with a receiving groove (1212); When the end of the first limiting block (41) is inserted into the limiting groove (43) and abuts against the limiting surface (211), the side wall of the second limiting block (44) abuts against the groove wall of the receiving groove (1212), thereby restricting the movement of the first limiting block (41).

9. The highly integrated slider injection molding structure for a vacuum cleaner plastic part according to claim 8, characterized in that: The third core-pulling forming block (31) is provided with a third forming channel (5). One end of the third forming channel (5) is connected to the limiting groove (43), and the other end of the third forming channel (5) is connected to the side wall of the third core-pulling forming block (31) near the third forming end (311). The third molding channel (5) is equipped with a third molding component (6) and a third reset component (7). The two ends of the third molding component (6) are a third molding drive end (61) and a third molding ejection end (62), respectively. The third molding drive end (61) can extend into the limiting groove (43). The third molding ejection end (62) can extend out a third core-pulling molding block (31) close to the side wall of the third molding end (311). The reset force of the third reset component (7) acts on the third molding component (6). When the first limiting block (41) is inserted into the limiting groove (43), the first limiting block (41) can abut against the third molding drive end (61), thereby driving the third molding ejection end (62) to protrude beyond the side wall of the third core-pulling molding block (31) near the third molding end (311). When the first limiting block (41) exits from the limiting groove (43), the third reset member (7) pushes the third molding member (6), the third molding ejector end (62) moves into the third molding channel (5), and the third molding drive end (61) can move into the limiting groove (43).

10. A demolding process for a high-integration slider injection molding structure for vacuum cleaner plastic parts as described in claim 8, comprising the following steps: S1: The moving mold drives the first core-pulling power block (121) and the second core-pulling power rod (221) to move, and the groove wall of the receiving groove (1212) on the first core-pulling power block (121) is separated from the second limiting block (44); S2: The limit drive cylinder (421) drives the first limit block (41) to move through the second limit block (44), and the first limit block (41) disengages from the limit groove (43) and the limit surface (211); S3: The third core-pulling power component (32) drives the third core-pulling power component (32) to move away from the side of the injection-molded vacuum cleaner plastic part; S4: The outer wall of the second core-pulling power rod (221) abuts against the wall of the second core-pulling power hole (212), and the second core-pulling power rod (221) drives the first core-pulling forming block (11) to move away from the side of the vacuum cleaner plastic part that has been injection molded; the core-pulling of the vacuum cleaner plastic part is completed.

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