Wire sr buckle injection mold

Abstract

The utility model provides a kind of wire SR line buckle injection mould, including upper die and lower die, and upper die and lower die mould form cavity;Upper die includes upper die plate and card line mould strip, the bottom surface of upper die plate is equipped with first clamping groove and first forming surface, and card line mould strip is detachably connected in first clamping groove, and the bottom of card line mould strip is equipped with first card line groove;Lower die includes support seat, first mould strip and second mould strip, support seat is equipped with mounting groove, the side of first mould strip is equipped with positioning pin, and the side of second mould strip is equipped with pin hole opposite to positioning pin, and first mould strip and second mould strip are inserted and are engaged after being arranged in mounting groove;Second card line groove is oppositely arranged with first card line groove on the first mould strip;The top corner position of the side of first mould strip close to second mould strip is equipped with second forming surface, and the top position of the side of second mould strip close to first mould strip is equipped with third forming surface.Compared with prior art, the mould of the utility model can reduce the demoulding difficulty of special-shaped line buckle.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, specifically relating to an injection mold for SR wire buckles. Background Technology

[0002] During use, the cable is prone to fatigue damage at the outlet or bend. Therefore, SR wire clips are installed on the cable to reduce fatigue damage during use.

[0003] Since existing SR wire clips are generally of a regular structure, during the blanking process, after the upper mold opens, the wire with the SR wire clip can be directly removed from the lower mold. However, for some irregularly shaped SR wire clips, they are prone to getting stuck on the upper platen of the upper mold after the upper mold opens, making blanking difficult. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a wire SR wire buckle injection mold.

[0005] To achieve the above objectives, this utility model discloses an injection mold for SR wire buckles, including an upper mold and a lower mold, wherein the upper mold and the lower mold are closed to form a cavity;

[0006] The upper mold includes an upper template and a wire-clamping template. The bottom surface of the upper template is provided with a first slot and a first forming surface. The wire-clamping template is detachably connected to the first slot. The bottom of the wire-clamping template is provided with a first wire-clamping groove.

[0007] The lower mold includes a support base, a first mold strip, and a second mold strip. The support base is provided with a mounting groove. The side of the first mold strip is provided with a positioning pin. The side of the second mold strip is provided with a pin hole opposite to the positioning pin. After the first mold strip and the second mold strip are inserted and engaged, they are locked in the mounting groove.

[0008] The first mold strip is provided with a second wire clamping groove, which is arranged opposite to the first wire clamping groove to seal and clamp the wire after the mold is closed;

[0009] The first mold strip has a second molding surface at the top corner of its side near the second mold strip, and the second mold strip has a third molding surface at the top of its side near the first mold strip. After the mold is closed, the space between the first molding surface, the second molding surface and the third molding surface is the cavity.

[0010] Preferably, a limiting block is provided in the mounting groove, and a limiting groove is provided on the side of the second mold strip away from the first mold strip. The limiting groove extends at least to the bottom surface of the second mold strip, and the limiting groove cooperates with the limiting block for limiting.

[0011] Preferably, the top surface of the first template is provided with a slot, a wire-locking block is locked in the slot, and the top surface of the wire-locking block is provided with a second wire-locking slot.

[0012] Preferably, the mounting groove extends through both sides of the support base.

[0013] Preferably, the cavity is shaped like the number 7;

[0014] The first and second mold strips have a third wire clamping groove and a fourth wire clamping groove on their two adjacent sides, respectively. The third and fourth wire clamping grooves are arranged opposite to each other to seal and clamp the wire after the mold is closed.

[0015] Preferably, the first template is disposed in the first slide groove, the top of the first slide groove is connected to the limiting groove, the bottom of the limiting block is provided with a limiting part extending into the slide groove, the slide groove is fitted with a first wire clamping block, one end of the first wire clamping block is limited and engaged with the limiting part, and the other end of the first wire clamping block is provided with the third wire clamping groove.

[0016] Preferably, the second template is disposed in the second slide groove, the second slide groove passes through both sides of the second template, the second slide groove is fitted with a second wire clamping block, one end of the second wire clamping block is limited and engaged with the inner side wall of the mounting groove, and the other end of the second wire clamping block is provided with the fourth wire clamping groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The first and second mold strips of the lower mold are connected by positioning pins and pin holes, and are inserted into the mounting groove of the support base as a whole. When demolding, the first and second mold strips can be separated first to remove the wrapping of the wire buckle, and then the wire can be easily taken out. This significantly reduces the demolding resistance caused by the irregular structure and reduces the demolding difficulty of the irregular wire buckle.

[0019] The wire clamping mold strip is detachably connected to the first clamping slot. The first mold strip, the support base, and the second mold strip are detachable. When injecting wire clips onto wires of different diameters, the wire clamping mold strip and the first mold strip with the corresponding wire clamping slot size can be replaced. In this way, for wires of different diameters that are injecting the same wire clips, the injection mold can be replaced with the wire clamping mold strip and the first mold strip, thus improving the versatility of the mold. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the bent wire in the embodiment;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of the injection mold for the SR wire buckle in this embodiment;

[0022] Figure 3 for Figure 23D exploded view of the injection mold for SR wire buckle of medium wire rod;

[0023] Figure 4 for Figure 2 Front view of the injection mold for SR wire clips;

[0024] Figure 5 for Figure 4 Sectional view of section AA;

[0025] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle;

[0026] Figure 7 A schematic diagram of the three-dimensional structure of the upper and middle molds;

[0027] Figure 8 for Figure 3 A three-dimensional structural diagram of the central support base;

[0028] Figure 9 for Figure 3 A three-dimensional exploded view of the first module.

[0029] Figure 10 This is a schematic diagram of the structure (including wire) after the first molded strip is formed;

[0030] Figure 11 for Figure 3 A three-dimensional exploded view of the second module;

[0031] Cable 100; SR cable clip 110;

[0032] Upper mold 200; heating nozzle 210; connecting plate 220; upper template 230; first slot 231; second slot 232; first forming surface 233; wire clamping strip 240; first wire clamping groove 241; upper mold strip 250; fourth forming surface 251;

[0033] Lower mold 300; base plate 310; support block 320; support base 330; mounting groove 331; limiting block 3311; opening 332; first mold strip 340; positioning pin 341; second forming surface 342; slot 343; first sliding groove 344; second mold strip 350; pin hole 351; third forming surface 352; limiting groove 353; second sliding groove 354; wire clamping block 360; second wire clamping groove 361; limiting part 362; first wire clamping block 370; third wire clamping groove 371; second wire clamping block 380; fourth wire clamping groove 381. Detailed Implementation

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] To clearly illustrate the technical solution of this utility model Figure 1 This illustration shows a bent wire 100 and an SR wire clip 110 injection-molded at the corner of the wire. The wire clip 110 is positioned at the corner of the bent wire 100 to protect the corner area. The wire clip 110 has two parts, located on the two bent sections of the wire. Both parts of the clip have regular structures, but the overall structure is irregular. This embodiment uses this wire clip as an example to illustrate the injection mold.

[0036] A type of SR wire buckle injection mold, see Figures 2-11 It includes an upper mold 200 and a lower mold 300. The upper mold 200 is provided with a hot nozzle 210. The upper mold 200 and the lower mold 300 are closed to form a cavity. Material is injected into the cavity through the hot nozzle 210 for injection molding.

[0037] The upper mold 200 includes a connecting plate 220, an upper template 230, a wire-clamping mold strip 240, and an upper mold strip 250. The connecting plate 220 is connected to the aforementioned hot nozzle 210. The upper template 230 is fixedly connected to the bottom of the connecting plate 220 by screws. The bottom surface of the upper template 230 is provided with a first slot 231, a second slot 232, and a first forming surface 233 located between the two slots 243. The wire-clamping mold strip 240 and the upper mold strip 250 are respectively clamped in the first slot 231 and the second slot 232 and fastened with screws. The bottom of the wire-clamping mold strip 240 is provided with a first wire-clamping groove 241, and the bottom surface of the upper mold strip 250 is provided with a fourth forming surface 251.

[0038] The lower mold 300 includes a base plate 310, a support block 320, a support base 330, a first mold strip 340, and a second mold strip 350. There are two support blocks 320, which are fixedly connected to the bottom sides of the support base 330. The support base 330 is fixedly connected to the base plate 310 via the two support blocks 320. The support base 330 has a mounting groove 331. The side of the first mold strip 340 has a positioning pin 341, and the side of the second mold strip 350 has a pin hole 351 opposite to the positioning pin 341. The first mold strip 340 and the second mold strip 350 are engaged by the positioning pin 341 and the pin hole 351, and then both are locked in the mounting groove 331 in a vertical direction. The first mold strip 340 has a second wire-clamping groove 361, which is opposite to the first wire-clamping groove 241. Both are semi-circular grooves, forming a circular groove after mold closing. This conforms to the shape of the wire, thereby sealing and clamping the wire. The first mold strip 340 has an inner wall of the mounting groove 331 on one side that abuts against it. The other side of the first mold strip 340 has a second forming surface 342 at its top corner. This second forming surface 342 extends towards the top and side surfaces of the first mold strip 340 at the corner. The forming surface on the top surface of the first mold strip 340 and the first forming surface 233 of the upper mold plate 230 can form a portion of the wire fastener. The second mold strip 350 has an inner wall of the mounting groove 331 on one side. The top of the other side of the second mold strip 350 has a third forming surface 352 located on the side of the second mold strip 350. This third forming surface 352 and the forming surface on the side of the first mold strip 340 can form another portion of the wire fastener. After mold closing, the space between the first forming surface 233, the second forming surface 342, the third forming surface 352, and the fourth forming surface 251 forms a 7-shaped cavity.

[0039] Before injection molding, the bent wire is placed on the first mold strip 340, so that the horizontal section of the wire is locked in the first wire clamping groove 241. Then, the first mold strip 340 and the second mold strip 350 are joined together to clamp the vertical section of the wire. Then, the two mold strips are locked in the mounting groove 331. During injection molding, the upper mold 200 moves downward to close the mold and perform injection molding. After injection molding is completed, the upper mold 200 moves upward, and then the first mold strip 340 and the second mold strip 350 are removed from the mounting groove 331. The first mold strip 340 and the second mold strip 350 are separated to unwrap the wire clip, and then the wire can be easily removed. This significantly reduces the demolding resistance caused by the irregular structure and reduces the demolding difficulty of the irregular wire clip.

[0040] The wire clamping mold strip 240 is detachably connected to the first clamping groove 231. The first mold strip 340, the support base 330, and the second mold strip 350 are detachable. When wire clips are injection molded on wires of different diameters, the wire clamping mold strip 240 and the first mold strip 340 with the corresponding size wire clamping groove can be replaced. In this way, for wires of different diameters that are injection molded with the same wire clips, the injection mold can be replaced by changing the wire clamping mold strip 240 and the first mold strip 340, thereby improving the versatility of the mold.

[0041] In this embodiment, a slot 343 is provided on the top surface of the first mold strip 340, and a wire-clamping block 360 is clamped in the slot 343. The top surface of the wire-clamping block 360 is provided with the aforementioned second wire-clamping groove 361. Thus, when injection molding wire clips onto wires of other sizes, it is not necessary to replace the entire mold strip; only the wire-clamping block 360 needs to be replaced, which is more cost-effective than replacing the entire mold strip.

[0042] In this embodiment, a limiting block 3311 is provided in the mounting groove 331. The limiting block 3311 extends along the width direction of the mounting groove 331 on the inner side wall of the mounting groove 331. A limiting groove 353 is provided on the side of the second mold strip 350 away from the first mold strip 340. The limiting groove 353 penetrates the bottom and top surfaces of the second mold strip 350. During assembly, the limiting block 3311 and the limiting groove 353 restrict the movement of the second mold strip 350 along the length direction of the mounting groove 331. Since the first mold strip 340 and the second mold strip 350 are connected by a positioning pin 341 and a pin hole 351, the movement capability of the first mold strip 340 along the length direction of the mounting groove 331 is also restricted.

[0043] In order to facilitate the removal of the first module 340 and the second module 350, the mounting groove 331 extends through both sides of the support base 330, so that the workers can remove the first module 340 and the second module 350 from the mounting groove 331 at both ends.

[0044] In this embodiment, the cavity formed by the molding surfaces of the first mold strip 340 and the second mold strip 350 (hereinafter referred to as the first cavity) extends through to the bottom surface of the support base 330, allowing longer wires to extend out of the support base 330. The support base 330 has an opening 332 on its side, which extends through the top and bottom surfaces of the side and reaches a position opposite to the first cavity. The opening 332 allows for direct placement of longer wires onto the support base 330, simplifying the operation. Furthermore, the first mold strip 340 and the second mold strip 350 can be lifted from the bottom of the lower mold 300 plate through the opening 332, facilitating material unloading.

[0045] In this embodiment, the first mold strip 340 and the second mold strip 350 are respectively provided with a third wire clamping groove 371 and a fourth wire clamping groove 381 on two adjacent sides. The third wire clamping groove 371 and the fourth wire clamping groove 381 are arranged opposite to each other to seal and clamp the wire after mold closing. The third wire clamping groove 371 and the fourth wire clamping groove 381 can not only clamp and fix the other end of the bent wire, but also seal the bottom of the cavity.

[0046] Specifically, the first mold strip 340 is disposed within the first slide groove 344. The top of the first slide groove 344 communicates with the limiting groove 353. The bottom of the limiting block 3311 is provided with a limiting part 362 extending into the slide groove. A first wire clamping block 370 is clamped within the slide groove. One end of the first wire clamping block 370 is limited and engaged with the limiting part 362, and the other end of the first wire clamping block 370 is provided with the aforementioned third wire clamping groove 371. The second mold strip 350 is disposed within the second slide groove 354. The second slide groove 354 extends through both sides of the second mold strip 350, which facilitates processing. A second wire clamping block 380 is clamped within the second slide groove 354. One end of the second wire clamping block 380 is limited and engaged with the inner sidewall of the mounting groove 331, and the other end of the second wire clamping block 380 is provided with the aforementioned fourth wire clamping groove 381. The third wire clamping groove 371 and the fourth wire clamping groove 381 are set as separate structures through the first wire clamping block 370 and the second wire clamping block 380. In this way, when injection molding wire clips on wires of other sizes, it is not necessary to replace the entire mold strip, but only to replace the wire clamping block. This is more cost-effective than replacing the entire mold strip.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A wire SR wire buckle injection mold, comprising an upper mold and a lower mold, wherein the upper mold and the lower mold are closed to form a cavity, characterized in that: The upper mold includes an upper template and a wire-clamping template. The bottom surface of the upper template is provided with a first slot and a first forming surface. The wire-clamping template is detachably connected to the first slot. The bottom of the wire-clamping template is provided with a first wire-clamping groove. The lower mold includes a support base, a first mold strip, and a second mold strip. The support base is provided with a mounting groove. The side of the first mold strip is provided with a positioning pin. The side of the second mold strip is provided with a pin hole opposite to the positioning pin. After the first mold strip and the second mold strip are inserted and engaged, they are locked in the mounting groove. The first mold strip is provided with a second wire clamping groove, which is arranged opposite to the first wire clamping groove to seal and clamp the wire after the mold is closed; The first mold strip has a second molding surface at the top corner of its side near the second mold strip, and the second mold strip has a third molding surface at the top of its side near the first mold strip. After the mold is closed, the space between the first molding surface, the second molding surface and the third molding surface is the cavity.

2. The injection mold for SR wire buckles according to claim 1, characterized in that: The mounting groove is provided with a limiting block, and the side of the second mold strip away from the first mold strip is provided with a limiting groove. The limiting groove extends at least to the bottom surface of the second mold strip, and the limiting groove cooperates with the limiting block for limiting.

3. The injection mold for SR wire buckles according to claim 1, characterized in that: The top surface of the first template is provided with a slot, a wire-locking block is locked in the slot, and the top surface of the wire-locking block is provided with a second wire-locking slot.

4. The injection mold for SR wire buckles according to claim 1, characterized in that: The mounting groove extends through both sides of the support base.

5. The injection mold for SR wire buckles according to claim 2, characterized in that: The cavity is shaped like the number 7; The first and second mold strips have a third wire clamping groove and a fourth wire clamping groove on their two adjacent sides, respectively. The third and fourth wire clamping grooves are arranged opposite to each other to seal and clamp the wire after the mold is closed.

6. The injection mold for SR wire buckles according to claim 5, characterized in that: The first template is disposed in the first slide groove, the top of the first slide groove is connected to the limiting groove, the bottom of the limiting block is provided with a limiting part extending into the slide groove, the first wire clamping block is clamped in the slide groove, one end of the first wire clamping block is limited and engaged with the limiting part, and the other end of the first wire clamping block is provided with the third wire clamping groove.

7. The injection mold for SR wire buckles according to claim 5, characterized in that: The second template is provided in the second slide groove, which runs through both sides of the second template. A second wire clamping block is installed in the second slide groove. One end of the second wire clamping block is limited and engaged with the inner side wall of the mounting groove. The other end of the second wire clamping block is provided with the fourth wire clamping groove.

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