Injection mold for a lighter ignition ring

Abstract

The utility model discloses a kind of injection mould of lighter fire ring, including lower mould and upper mould, profiling seat, ejector rod and sliding seat are provided on the lower mould, profiling seat is provided with perforation, the ejector rod is worn the perforation, the side of sliding seat towards profiling seat is provided with annular groove matched with annular body, the lower end of upper mould is provided with groove body and the push piece for pushing sliding seat transverse sliding, profiling seat is inserted into the groove body and is matched with the groove body to form the cavity matched with side plate and lever, in the moulding process of the upper mould and the lower mould, the push piece pushes the sliding seat transverse sliding and abuts with the side of profiling seat, annular groove and the cavity are matched to form the cavity matched with fire ring, advantage is helpful to guarantee the yield of good product rate of fire ring.

Description

Technical Field

[0001] This utility model belongs to the field of lighter processing technology, and in particular relates to an injection mold for a lighter flame adjustment ring. Background Technology

[0002] The flame adjustment ring is one of the accessories of a lighter, such as... Figure 1 As shown, the flame control ring includes an annular body 11, side plates 12, and a lever 13. Rotation adjusts the opening of the air intake channel to control the flame size. The flame control ring is typically made of plastic and requires injection molding equipment for manufacturing. The injection molding equipment includes an upper mold and a lower mold. During injection molding, the upper and lower molds are first closed to form multiple cavities that match the flame control ring, as well as runners communicating with these cavities. Molten plastic is then injected into the runners through the gate, eventually filling all cavities. After cooling and solidification, the flame control ring is formed, and the plastic residue in the runners forms a support structure. During demolding, the upper and lower molds separate, and all flame control rings are ejected upwards by ejector pins in the lower mold. The support structure is then transferred by a material unloading mechanism.

[0003] Conventionally, the cavity is matched with the vertically placed flame ring, and the pushing point of the push rod is on the lower end face of the ring. During the ejection process, the ring may warp and deform. The inner ring of the ring is generally toothed. If warping and deformation occur, it will affect the assembly accuracy with other parts of the lighter, which is not conducive to ensuring the yield rate. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an injection mold for a lighter flame adjustment ring, which helps to ensure the yield rate of the produced flame adjustment rings.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an injection mold for a lighter flame adjusting ring, including a lower mold and an upper mold. The lower mold is provided with a contour seat, a push rod and a sliding seat. The contour seat is provided with a through hole, and the push rod passes through the through hole. The sliding seat is provided with an annular groove matching the ring body on the side facing the contour seat. The lower end of the upper mold is provided with a groove and a pusher for pushing the sliding seat to slide laterally. The contour seat extends into the groove and cooperates with the groove to form a cavity matching the side plate and the lever. During the mold closing process of the upper mold and the lower mold, the pusher pushes the sliding seat to slide laterally and abuts against one side of the contour seat. The annular groove and the cavity cooperate to form a cavity matching the flame adjusting ring.

[0006] Preferably, the pusher is a downwardly extending push rod with its axis inclined from top to bottom and away from the contour seat. The upper end of the sliding seat is provided with a downwardly extending guide hole, and the push rod extends into the guide hole.

[0007] Preferably, the lower end of the push rod is hemispherical.

[0008] Preferably, the sliding seat includes a slider and a mounting block. The lower mold is provided with a slide rail extending laterally. The slider slides laterally with the slide rail. The slider is provided with the guide hole. The mounting block is detachably disposed on the side of the slider facing the contour seat. The annular groove is disposed on the side of the mounting block.

[0009] Preferably, the lower end face of the upper mold is provided with a mounting groove and a mounting seat. The mounting seat is detachably disposed in the mounting groove. The upper end of the mounting seat is provided with a limiting groove. The bottom of the limiting groove is provided with a through hole extending obliquely downward. The upper end of the push rod is fixedly provided with a limiting block. The limiting block is stuck in the limiting groove. The lower end of the push rod passes through the through hole and extends out.

[0010] Preferably, the upper mold is provided with a gate and a runner, and the gate, the runner and the chamber are connected in sequence.

[0011] Preferably, the flow channel includes a main flow channel and a branch flow channel. The gate is connected to the center of the main flow channel, one end of the branch flow channel is connected to the main flow channel, and the other end of the branch flow channel is connected to the side of the chamber away from the sliding seat.

[0012] Compared with the prior art, the advantages of this utility model are: 1. A cavity matching the flame adjusting ring is formed by the cooperation of the contour seat, sliding seat and groove. The cavity extends laterally, so that the injection-molded flame adjusting ring is placed laterally. The push rod can contact the side plate in the flame adjusting ring and push it upward. The push rod does not contact the ring body, avoiding the risk of warping deformation of the ring body during the ejection process, which helps to ensure the yield of the produced flame adjusting ring. 2. By setting a pusher on the upper mold to push the sliding seat to slide laterally, the sliding seat can slide laterally during mold closing and demolding. The structure is simple, the operation is easy, and it helps to ensure production efficiency. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of a lighter's flame adjustment ring; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is a schematic diagram of the upper mold in this utility model; Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 This is an exploded structural diagram of the sliding seat in this utility model; Figure 7 for Figure 4 Enlarged view of point B in the middle; Figure 8 This is a partial exploded view of the upper mold in this utility model; Figure 9 This is a schematic diagram of the mounting base in this utility model.

[0014] In the diagram: 1. Ignition ring; 11. Ring body; 12. Side plate; 13. Dial rod; 2. Lower mold; 21. Contouring seat; 211. Through hole; 22. Push rod; 23. Sliding seat; 231. Slider; 2311. Guide hole; 232. Mounting block; 2321. Annular groove; 24. Slide rail; 3. Upper mold; 31. Groove; 32. Gate; 33. Runner; 331. Main runner; 332. Sub-runner; 34. Mounting groove; 35. Mounting seat; 351. Limiting groove; 352. Through hole; 4. Push part; 41. Push rod; 42. Limiting block. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] Example 1: As Figures 1 to 7 As shown, an injection mold for a lighter's flame adjustment ring includes a lower mold 2 and an upper mold 3. The lower mold 2 is provided with a contour seat 21, a push rod 22, and a sliding seat 23. The contour seat 21 is provided with a through hole 211, and the push rod 22 passes through the through hole 211. The sliding seat 23 is provided with an annular groove 2321 that matches the annular body 11 on the side facing the contour seat 21. The lower end of the upper mold 3 is provided with a groove 31 and a pusher 4 for pushing the sliding seat 23 to slide laterally. The contour seat 21 extends into the groove 31 and cooperates with the groove 31 to form a cavity that matches the side plate 12 and the lever 13. It should be noted that the use of a movable push rod 22 on the lower mold 2 is a conventional technique in this field. In this technical solution, a through hole 211 is provided on the contour base 21 so that the push rod 22 corresponds to the through hole 211 on the contour base 21. When the injection-molded flame ring 1 is ejected after demolding, the push rod 22 pushes the side plate 12 of the flame ring 1, rather than pushing the annular body 11 of the flame ring 1.

[0018] During the mold closing process of the upper mold 3 and the lower mold 2, the pusher 4 pushes the sliding seat 23 to slide laterally and abuts against one side of the contour seat 21. The annular groove 2321 and the cavity cooperate to form a cavity that matches the adjusting ring 1.

[0019] Conventionally, injection molds are designed for multiple cavities. Multiple contour seats 21, ejector pins 22, sliding seats 23, grooves 31, and ejector pins 4 are used, along with multiple annular grooves 2321 on the sliding seats 23, to form multiple cavities that match the heating ring 1. The specific configuration depends on the actual situation. Correspondingly, the upper mold 3 is equipped with a gate 32 and a runner 33, which are sequentially connected to the cavities.

[0020] Furthermore, the runner 33 includes a main runner 331 and multiple branch runners 332. The gate 32 is connected to the center of the main runner 331. One end of the branch runner 332 is connected to the main runner 331, and the other end of the branch runner 332 corresponds to and is connected to the cavity. The branch runner 332 is paired with one cavity or two cavities. Preferably, the other end of the branch runner 332 corresponds to two cavities, and the other end of the branch runner 332 is connected to the side of the cavity away from the sliding seat 23. After injection molding, the material rack structure and the upper end of the heating ring 1 form a connection point. This connection point is away from the ring body 11, and cutting and separating the material rack structure and the heating ring 1 has little impact on the heating ring 1.

[0021] Example 2: Figure 3 , Figure 4 , Figure 6 and Figure 8 As shown, the rest is the same as in Embodiment 1, except that the pusher 4 is a downwardly extending push rod 41. The axis of the push rod 41 is inclined from top to bottom and away from the contour seat 21. The upper end of the sliding seat 23 is provided with a downwardly extending guide hole 2311, into which the push rod 41 extends. The axis of the guide hole 2311 is parallel to the axis of the push rod 41.

[0022] During the mold closing process of the upper mold 3 and the lower mold 2, the push rod 41 moves downward with the upper mold 3, extends into the guide hole 2311 and contacts the side of the guide hole 2311, so as to push the sliding seat 23 to slide towards the contour seat 21; during the mold demolding process of the upper mold 3 and the lower mold 2, the push rod 41 moves upward with the upper mold 3, disengages from the guide hole 2311 and pushes the sliding seat away from the contour seat 21.

[0023] Furthermore, the lower end of the push rod 41 is hemispherical, which serves as a guide and can stably extend into the guide hole 2311 during the mold closing process.

[0024] Example 3: Figure 3 and Figure 6As shown, the rest is the same as in Embodiment 2, except that the sliding seat 23 includes a slider 231 and a mounting block 232. The lower mold 2 is provided with a slide rail 24 extending laterally. The slider 231 slides laterally with the slide rail 24. The slider 231 is provided with a guide hole 2311. The mounting block 232 is detachably provided on the side of the slider 231 facing the contour seat 21. The annular groove 2321 is provided on the side of the mounting block 232.

[0025] In this structure, the slider 231 and the mounting block 232 are detachably connected to accommodate different specifications of the flame adjusting ring 1 (see...). Figure 1 Replacing the corresponding mounting block 232 helps improve the versatility and flexibility of the mold.

[0026] Example 4: Figure 8 and Figure 9 As shown, the rest of the parts are the same as in Embodiment 2, except that the lower end face of the upper mold 3 is provided with an installation groove 34 and an installation seat 35. The installation seat 35 is detachably installed in the installation groove 34. The upper end of the installation seat 35 is provided with a limiting groove 351. The bottom of the limiting groove 351 is provided with a through hole 352 extending downward. The upper end of the push rod 41 is fixedly provided with a limiting block 42. The limiting block 42 is stuck in the limiting groove 351. The lower end of the push rod 41 passes through the through hole 352 and extends out.

[0027] Preferably, the push rod 41 and the limiting block 42 are integrally formed, which improves the reliability of the structure.

[0028] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. An injection mold for a lighter's flame adjustment ring, comprising a lower mold (2) and an upper mold (3), characterized in that: The lower mold (2) is provided with a contour seat (21), a push rod (22) and a sliding seat (23). The contour seat (21) is provided with a through hole (211). The push rod (22) passes through the through hole (211). The sliding seat (23) is provided with an annular groove (2321) matching the annular body (11) on the side facing the contour seat (21). The lower end of the upper mold (3) is provided with a groove (31) and a pusher (4) for pushing the sliding seat (23) to slide laterally. The contour seat (21) extends into the groove (31) and cooperates with the groove (31) to form a cavity matching the side plate (12) and the lever (13). During the mold closing process of the upper mold (3) and the lower mold (2), the pusher (4) pushes the sliding seat (23) to slide laterally and abut against one side of the contour seat (21). The annular groove (2321) and the cavity cooperate to form a cavity that matches the fire adjusting ring (1).

2. The injection mold for a lighter flame adjusting ring according to claim 1, characterized in that: The pusher (4) is a push rod (41) extending obliquely downward. The axis of the push rod (41) is inclined from top to bottom and away from the contour seat (21). The upper end of the sliding seat (23) is provided with a guide hole (2311) extending obliquely downward. The push rod (41) extends into the guide hole (2311).

3. The injection mold for a lighter flame adjusting ring according to claim 2, characterized in that: The lower end of the push rod (41) is hemispherical.

4. The injection mold for a lighter flame adjusting ring according to claim 2, characterized in that: The sliding seat (23) includes a slider (231) and a mounting block (232). The lower mold (2) is provided with a slide rail (24) extending laterally. The slider (231) slides laterally with the slide rail (24). The slider (231) is provided with the guide hole (2311). The mounting block (232) is detachably disposed on the side of the slider (231) facing the contour seat (21). The annular groove (2321) is disposed on the side of the mounting block (232).

5. The injection mold for a lighter flame adjusting ring according to claim 2, characterized in that: The lower end face of the upper mold (3) is provided with an installation groove (34) and an installation seat (35). The installation seat (35) is detachably disposed in the installation groove (34). The upper end of the installation seat (35) is provided with a limiting groove (351). The bottom of the limiting groove (351) is provided with a through hole (352) extending obliquely downward. The upper end of the push rod (41) is fixedly provided with a limiting block (42). The limiting block (42) is stuck in the limiting groove (351). The lower end of the push rod (41) passes through the through hole (352) and extends out.

6. The injection mold for a lighter flame adjusting ring according to claim 1, characterized in that: The upper mold (3) is provided with a gate (32) and a runner (33), and the gate (32), the runner (33) and the cavity are connected in sequence.

7. The injection mold for a lighter flame adjusting ring according to claim 6, characterized in that: The flow channel (33) includes a main flow channel (331) and a branch flow channel (332). The gate (32) is connected to the center of the main flow channel (331). One end of the branch flow channel (332) is connected to the main flow channel (331), and the other end of the branch flow channel (332) is connected to the side of the chamber away from the sliding seat (23).

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