Injection mold structure of integrated protective insulation drainage device

Abstract

The utility model relates to the technical field of insulator forming, and provides an integrated protective insulation drainage device injection mold structure which comprises a right lower mold base, one end of the right lower mold base is movably connected with a middle lower mold base, one end of the middle lower mold base is movably connected with a left lower mold base, a left upper mold base is arranged above the right lower mold base, and a left lower mold base is arranged above the left upper mold base. One end of the left upper mold base is movably connected with a middle upper mold base, one end of the middle upper mold base is movably connected with a right upper mold base, and the top ends of the left upper mold base, the middle upper mold base and the right upper mold base are fixedly connected with injection pipes. The left lower die holder, the middle lower die holder, the right lower die holder, the left upper die holder, the middle upper die holder and the right upper die holder are assembled through the mounting assemblies, so that different numbers of middle lower die holders and middle upper die holders can be selectively assembled according to drainage insulators with different lengths, and the production requirements of insulators with any lengths can be met; the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of insulator molding, in particular to an injection mold structure of an integrated protective insulation drainage device. Background Art

[0002] Drain insulators are devices installed between conductors at different potentials or between conductors and grounding components, which can withstand voltage and mechanical stress. They can play an important role in overhead transmission lines. Nowadays, in the production and processing of drain insulators, injection molds are usually used for injection molding.

[0003] After searching, the existing patent (Announcement No.: CN219028324U) discloses a molding die for an insulator, including an upper die and a lower die, the upper die bottom surface is provided with an upper injection cavity, the lower die top surface is provided with a lower injection cavity, the insulator is engaged with the lower injection cavity, the lower injection cavity is provided with exhaust holes at both ends, the lower die top surface is provided with a frame-shaped air groove, the exhaust holes are connected to the air groove, the lower injection cavity is provided with annular grooves at both ends, a ring is engaged in the annular groove, a clamping block is provided at the top of the ring, the upper injection cavity is provided with clamping grooves at the front and back, the position of the clamping groove corresponds to the position of the clamping block, and the inner wall of the ring fits the cast iron parts at the front and back of the insulator. The utility model is conducive to avoiding the gas in the mold cavity from affecting the material flow, and at the same time avoiding the formation of negative pressure in the process of reciprocating production, which leads to the difficulty of opening the mold, and is conducive to taking out the insulator with an external device.

[0004] However, in the above scheme, it is inconvenient to produce drainage insulators of different lengths. Drainage insulators of different specifications have different lengths, but the existing mold size is fixed, so it can only injection mold drainage insulators of the same length, which is inconvenient to meet the production needs of drainage insulators of different lengths, resulting in its low applicability.

[0005] In view of this, the utility model proposes an injection mold structure of an integrated protective insulation drainage device. Utility Model Content

[0006] The utility model provides an injection mold structure of an integrated protective insulating drainage device, which solves the problem in the related art that it is inconvenient to produce drainage insulators of different lengths.

[0007] The technical solution of the utility model is as follows: An integrated protective insulating drainage device injection mold structure, comprising a right lower mold base, one end of the right lower mold base is movably connected to the middle lower mold base, one end of the middle lower mold base is movably connected to the left lower mold base, an upper left mold base is arranged above the right lower mold base, one end of the upper left mold base is movably connected to the middle upper mold base, one end of the middle upper mold base is movably connected to the right upper mold base, the top ends of the upper left mold base, the middle upper mold base and the upper right mold base are fixedly connected with an injection tube, installation components are arranged on both sides of the left lower mold base, the middle lower mold base, the right lower mold base, the upper left mold base, the middle upper mold base and the upper right mold base, and injection mold cavities are opened on the inner walls of the left lower mold base, the middle lower mold base, the right lower mold base, the upper left mold base, the middle upper mold base and the upper right mold base.

[0008] The mounting assembly comprises a clamping slot, and the clamping slot is arranged on both sides of one end of the left lower mold base, the middle lower mold base, the middle upper mold base and the right upper mold base, and the middle lower mold base, the right lower mold base, the left upper mold base and the middle upper mold base are fixedly connected with a clamping block on both sides of the other end, and bolt holes are arranged at two ends of one side of the clamping block, and the middle lower mold base, the right lower mold base, the left upper mold base and the middle upper mold base are fixedly connected with a mounting plate on both sides of one end, and reserved grooves are arranged at two ends of one side of the mounting plate, and the inner wall of the reserved groove is movably connected with a mounting bolt, and the clamping block is engaged with the inside of the clamping slot to realize the preliminary assembly clamping connection between the left lower mold base, the middle lower mold base, the right lower mold base and the left upper mold base, the middle upper mold base and the right upper mold base, and then the mounting bolt is matched with the thread inside the bolt hole to realize the firm clamping of the clamping block and the inside of the clamping slot, and then different numbers of the middle lower mold base and the middle upper mold base can be selected and assembled according to the drainage insulators of different lengths, so that it can meet the production requirements of insulators of any length.

[0009] Preferably, one side of one end of the mounting plate is beveled, and one side of the mounting plate is welded to the surfaces of the middle lower die base, the right lower die base, the left upper die base and the middle upper die base to form an integrated structure, so that the mounting plate is easier to clamp to and adhere to the two sides of the left lower die base or the middle lower die base and the middle upper die base or the right upper die base, further improving the stability of the initial assembly and clamping of the three.

[0010] Preferably, a rubber ring is fixedly connected to one side of the surface of the mounting bolt, and the shape of the rubber ring in a side view is O-shaped, so as to prevent the thread of the mounting bolt from loosening and affecting the stability of the engagement between the clamping block and the inside of the clamping slot.

[0011] Preferably, a threaded fitting structure is formed between one end of the mounting bolt and the inside of the bolt hole, and the mounting bolts are symmetrically distributed about the vertical center axis of the clamping block, thereby improving the firmness and stability of the clamping block and the inside of the clamping slot.

[0012] Preferably, a snap-fit ​​structure is formed between the card block and the inside of the card slot, and the four corners of the card block and the card slot are rounded to achieve preliminary assembly and snap connection between the left lower mold base, the middle lower mold base, the right lower mold base and the left upper mold base, the middle upper mold base, and the right upper mold base.

[0013] Preferably, a positioning hole is provided on one side of the top of the left lower mold base and the right lower mold base, and a positioning block engaged with the inside of the positioning hole is fixedly connected to one side of the bottom of the left upper mold base and the right upper mold base to improve the accuracy and tightness after mold closing.

[0014] Preferably, a fixing ring is fixedly connected at the middle position of one end of the left lower mold base, the right lower mold base, the left upper mold base and the right upper mold base, and the cross-section of the fixing ring is semicircular, which is convenient for axial positioning of the glass fiber reinforced plastic insulation tube.

[0015] Preferably, the axial center of the fixing ring and the axial center of the injection mold cavity are both in the same horizontal plane, and reserved holes are provided on both sides of the fixing ring to ensure that the fiberglass reinforced plastic insulation tube is accurately aligned with the axial center of the injection mold cavity, thereby ensuring the quality of subsequent injection molding of the drainage insulator.

[0016] The working principle and beneficial effects of the utility model are:

[0017] The utility model provides an installation assembly, a left lower die base, a middle lower die base, a right lower die base, a left upper die base, a middle upper die base and a right upper die base, so that the card block is clamped into the inside of the card slot, so as to realize the preliminary assembly and clamping among the left lower die base, the middle lower die base, the right lower die base and the left upper die base, the middle upper die base and the right upper die base, and at this time, the installation plate will be tightly attached to the two sides of the left lower die base or the middle lower die base and the middle upper die base or the right upper die base, so as to further improve the stability of the preliminary assembly and clamping among the three, and then the installation bolts are matched with the threads inside the bolt holes to realize the firm clamping of the card block and the inside of the card slot, and then different numbers of middle lower die bases or middle upper die bases can be selected and assembled according to the drainage insulators of different lengths, so that it can meet the production requirements of insulators of any length, and improve its applicability;

[0018] The overflow groove and the exhaust groove in the utility model are reasonably designed, and the exhaust is smooth, which can ensure that the product has no defects after molding. The glue in the overflow groove can be pulled up in strips, and there will not be too much rubber fragments on the parting surface, which shortens the mold cleaning time during production. In addition, the glue injection flow channel is reasonably designed to avoid air encapsulation in the umbrella skirt during injection, thereby ensuring the production quality of the drainage insulator and improving its practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the explosion structure at the lower left mold base of the utility model;

[0022] Figure 3 It is a schematic diagram of the top cross-sectional structure of the utility model;

[0023] Figure 4 It is a partial enlarged structural schematic diagram of the fixing ring of the utility model;

[0024] Figure 5 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0025] In the figure: 1. injection tube; 2. mounting assembly; 201. mounting plate; 202. mounting bolt; 203. rubber ring; 204. reserved groove; 205. bolt hole; 206. clamping block; 207. clamping groove; 3. lower left mold base; 4. lower middle mold base; 5. lower right mold base; 6. fixing ring; 7. upper left mold base; 8. upper middle mold base; 9. upper right mold base; 10. injection mold cavity; 11. positioning hole; 12. positioning block. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The preferred embodiment of the injection mold structure of the integrated protection insulation drainage device provided by the utility model is as follows Figures 1 to 5 As shown: an integrated protective insulation drainage device injection mold structure, including a right lower mold base 5, one end of the right lower mold base 5 is movably connected to the middle lower mold base 4, one end of the middle lower mold base 4 is movably connected to the left lower mold base 3, an upper left mold base 7 is arranged above the right lower mold base 5, one end of the upper left mold base 7 is movably connected to the middle upper mold base 8, one end of the middle upper mold base 8 is movably connected to the right upper mold base 9, the top ends of the upper left mold base 7, the middle upper mold base 8 and the upper right mold base 9 are fixedly connected with an injection tube 1, the lower left mold base 3, the middle lower mold base 4, the lower right mold base 5 and the left upper mold base 7, the middle upper mold base 8, and the right upper mold base 9 are provided with installation components 2 on both sides, and the lower left mold base 3, the middle lower mold base 4, the lower right mold base 5, the upper left mold base 7, the middle upper mold base 8 and the upper right mold base 9 are provided with an injection mold cavity 10 on the inner walls of the lower left mold base 3, the middle lower mold base 4, the lower right mold base 5, the upper left mold base 7, the middle upper mold base 8 and the upper right mold base 9.

[0028] The mounting assembly 2 includes a card slot 207, which is provided on both sides of the left lower die base 3, the middle lower die base 4, the middle upper die base 8 and one end of the right upper die base 9, and the middle lower die base 4, the right lower die base 5, the left upper die base 7 and the middle upper die base 8 are fixedly connected to the two sides of the other end with a card block 206, and the two ends of one side of the card block 206 are provided with bolt holes 205, and the middle lower die base 4, the right lower die base 5, the left upper die base 7 and the middle upper die base 8 are fixedly connected to the two sides of the one end with a mounting plate 201, and the mounting plate 2 Reserved grooves 204 are provided at both ends of one side of 01, and the inner wall of the reserved groove 204 is movably connected with a mounting bolt 202. The clamping block 206 is engaged with the inside of the clamping groove 207, and the mounting bolt 202 is matched with the thread inside the bolt hole 205 to achieve a firm engagement between the clamping block 206 and the inside of the clamping groove 207. Then, different numbers of intermediate lower mold bases 4 and intermediate upper mold bases 8 can be selected and assembled according to different lengths of drainage insulators, so that it can meet the production requirements of insulators of any length.

[0029] In this embodiment, one side of one end of the mounting plate 201 is beveled, and one side of the mounting plate 201 is welded to the surfaces of the middle lower die base 4, the right lower die base 5, the left upper die base 7 and the middle upper die base 8 to form an integrated structure. The beveled mounting plate 201 makes it easier for the mounting plate 201 to clamp to and adhere to both sides of the left lower die base 3 or the middle lower die base 4 and the middle upper die base 8 or the right upper die base 9, further improving the stability of the initial assembly and clamping of the three.

[0030] In this embodiment, a rubber ring 203 is fixedly connected to one side of the surface of the mounting bolt 202. The shape of the rubber ring 203 in the side view is O-shaped. The O-shaped rubber ring 203 is used to improve the friction tightness between one end of the surface of the mounting bolt 202 and the inner wall of the reserved groove 204, thereby preventing the thread of the mounting bolt 202 from loosening and affecting the stability of the engagement between the block 206 and the internal engagement of the groove 207.

[0031] In this embodiment, a threaded fitting structure is formed between one end of the mounting bolt 202 and the inside of the bolt hole 205. The mounting bolts 202 are symmetrically distributed about the vertical center axis of the clamping block 206. The symmetrically distributed mounting bolts 202 and the threaded fitting inside the bolt hole 205 are utilized to improve the firmness and stability of the clamping block 206 and the inside of the clamping slot 207.

[0032] In this embodiment, a snap-fit ​​structure is formed between the clamping block 206 and the inside of the clamping slot 207. The four corners of the clamping block 206 and the clamping slot 207 are rounded. The clamping of the clamping block 206 and the inside of the clamping slot 207 is utilized to realize the preliminary assembly and snap connection between the left lower mold base 3, the middle lower mold base 4, the right lower mold base 5 and the left upper mold base 7, the middle upper mold base 8, and the right upper mold base 9.

[0033] Furthermore, a positioning hole 11 is opened on one side of the top of the left lower mold base 3 and the right lower mold base 5, and a positioning block 12 that engages with the inside of the positioning hole 11 is fixedly connected to one side of the bottom of the left upper mold base 7 and the right upper mold base 9. The engagement of the positioning block 12 with the inside of the positioning hole 11 can improve the accuracy and tightness after mold closing.

[0034] Furthermore, a fixing ring 6 is fixedly connected at the middle position of one end of the left lower mold base 3, the right lower mold base 5, the left upper mold base 7 and the right upper mold base 9. The cross-section of the fixing ring 6 is semicircular. The semicircular fixing ring 6 is used to facilitate the axial positioning of the fiberglass insulating tube.

[0035] In addition, the axial center of the fixing ring 6 and the axial center of the injection mold cavity 10 are both in the same horizontal plane, and reserved holes are provided on both sides of the fixing ring 6. The fixing ring 6 and the injection mold cavity 10, whose axial centers are in the same horizontal plane, are used to ensure that the axial center of the fiberglass reinforced plastic insulating tube is accurately aligned with the axial center of the injection mold cavity 10, thereby ensuring the quality of subsequent injection molding of the drainage insulator.

[0036] The working principle and use process of the utility model are as follows: first, according to the different lengths of the drainage insulator, the lower left mold base 3, the middle lower mold base 4, the lower right mold base 5 and the upper left mold base 7, the middle upper mold base 8, and the upper right mold base 9 are assembled, and the clamping block 206 is clamped into the inside of the clamping groove 207 to realize the preliminary assembly and clamping between the lower left mold base 3, the middle lower mold base 4, the lower right mold base 5 and the upper left mold base 7, the middle upper mold base 8, and the upper right mold base 9, and at this time, the mounting plate 201 will be connected with the left mold base 201. The lower die base 3 or the middle lower die base 4 and the middle upper die base 8 or the right upper die base 9 are tightly attached to each other on both sides, further improving the stability of the initial assembly and clamping of the three. Then, the mounting bolt 202 is inserted into the reserved groove 204 and screwed into the bolt hole 205 to achieve a firm clamping of the clamping block 206 and the inside of the clamping groove 207. Then, different numbers of the middle lower die base 4 and the middle upper die base 8 can be selected and assembled according to the drainage insulators of different lengths, so that the production requirements of insulators of any length can be met.

[0037] Afterwards, the FRP insulating tube is placed into the injection mold cavity 10 of the left lower mold base 3, the middle lower mold base 4 and the right lower mold base 5, and then the positioning block 12 is engaged with the inside of the positioning hole 11 to achieve tight mold closing between the left upper mold base 7, the middle upper mold base 8, the right upper mold base 9 and the left lower mold base 3, the middle lower mold base 4, and the right lower mold base 5. Afterwards, the fixing ring 6 and the FRP insulating tube are firmly fixed by external bolts and nuts to achieve axial positioning of the FRP insulating tube, and then the appropriate material is injected into the injection mold cavity 10 through the injection tube 1 for injection molding.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated protective insulation drainage device injection mold structure, comprising a right lower mold base (5), characterized in that: One end of the right lower mold base (5) is movably connected to the middle lower mold base (4), one end of the middle lower mold base (4) is movably connected to the left lower mold base (3), a left upper mold base (7) is arranged above the right lower mold base (5), one end of the left upper mold base (7) is movably connected to the middle upper mold base (8), one end of the middle upper mold base (8) is movably connected to the right upper mold base (9), the top ends of the left upper mold base (7), the middle upper mold base (8) and the right upper mold base (9) are fixedly connected to the injection tube (1), the two sides of the left lower mold base (3), the middle lower mold base (4), the right lower mold base (5) and the left upper mold base (7), the middle upper mold base (8) and the right upper mold base (9) are provided with mounting components (2), and the inner walls of the left lower mold base (3), the middle lower mold base (4), the right lower mold base (5), the left upper mold base (7), the middle upper mold base (8) and the right upper mold base (9) are provided with injection mold cavities (10); The mounting assembly (2) comprises a clamping slot (207), wherein the clamping slot (207) is provided on both sides of one end of the left lower die base (3), the middle lower die base (4), the middle upper die base (8) and the right upper die base (9); the other ends of the middle lower die base (4), the right lower die base (5), the left upper die base (7) and the middle upper die base (8) are fixedly connected with a clamping block (206) on both sides; bolt holes (205) are provided at both ends of one side of the clamping block (206); the middle lower die base (4), the right lower die base (5), the left upper die base (7) and the middle upper die base (8) are fixedly connected with a mounting plate (201) on both sides of one end; reserved grooves (204) are provided at both ends of one side of the mounting plate (201); and mounting bolts (202) are movably connected to the inner wall of the reserved groove (204).

2. The integrated protective insulation drainage device injection mold structure according to claim 1 is characterized in that: One side of one end of the mounting plate (201) is beveled, and one side of the mounting plate (201) is welded to the surfaces of the middle lower die seat (4), the right lower die seat (5), the left upper die seat (7) and the middle upper die seat (8) to form an integrated structure.

3. The integrated protective insulation drainage device injection mold structure according to claim 1 is characterized in that: A rubber ring (203) is fixedly connected to one side of the surface of the mounting bolt (202); the rubber ring (203) is in an O-shape in a side view.

4. The integrated protective insulation drainage device injection mold structure according to claim 1 is characterized in that: A threaded fitting structure is formed between one end of the mounting bolt (202) and the interior of the bolt hole (205), and the mounting bolts (202) are symmetrically distributed about the vertical center axis of the clamping block (206).

5. The integrated protective insulation drainage device injection mold structure according to claim 1 is characterized in that: A locking structure is formed between the locking block (206) and the inside of the locking slot (207), and the four corners of the locking block (206) and the locking slot (207) are rounded.

6. The integrated protective insulation drainage device injection mold structure according to claim 1, characterized in that: A positioning hole (11) is provided on one side of the top end of the left lower mold base (3) and the right lower mold base (5), and a positioning block (12) which engages with the inside of the positioning hole (11) is fixedly connected to one side of the bottom end of the left upper mold base (7) and the right upper mold base (9).

7. The integrated protective insulation drainage device injection mold structure according to claim 1 is characterized in that: A fixing ring (6) is fixedly connected at the middle position of one end of the left lower mold base (3), the right lower mold base (5), the left upper mold base (7) and the right upper mold base (9), and the cross-section of the fixing ring (6) is in the shape of a semicircle.

8. The integrated protective insulation drainage device injection mold structure according to claim 7 is characterized in that: The axial center of the fixing ring (6) and the axial center of the injection mold cavity (10) are both located in the same horizontal plane, and reserved holes are provided on both sides of the fixing ring (6).

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