Earphone shell injection mold capable of rapidly demolding

Abstract

The utility model discloses an earphone shell injection mold capable of being quickly demolded, which comprises a main body assembly, an upper mold and an ejection hole, the main body assembly comprises a lower mold, a mold cavity, an upper mold and an ejection hole, the ejection hole is formed in the middle of the lower mold, and the ejection hole is communicated with the mold cavity; and the rapid protection demolding assembly comprises a bearing barrel, a buffer spring and a cylindrical ejector pin, the bottom of the lower mold is movably connected with the bearing barrel, the buffer spring is movably connected in the bearing barrel, the cylindrical ejector pin is movably connected in the bearing barrel at the same time, and the buffer spring is movably connected to the side portion of the cylindrical ejector pin. When the opening speed of the upper die is higher and the cylindrical ejector pin is instantaneously subjected to larger impact force, the buffer spring can buffer the impact force through the elastic deformation of the buffer spring, so that the cylindrical ejector pin is prevented from being damaged due to rigid collision, and meanwhile, a formed earphone shell can be protected from being damaged; and the service life of the cylindrical ejector pin can be prolonged, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to earphone shell production technical field especially a kind of earphone shell injection mold of quick demoulding. BACKGROUND

[0002] Bluetooth earphone is placed in earphone shell and is charged simultaneously, and earphone shell needs to use injection mold in production process.

[0003] In order to realize the quick demoulding of forming earphone shell in existing mold, top pin is usually installed at bottom to eject it, but top pin is mostly set in metal integration in prior art, and improper force control can easily cause the damage of forming earphone shell, so a new protective top pin is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of earphone shell injection mold of quick demoulding to solve the problem that top pin is mostly set in metal integration in prior art in order to realize the quick demoulding of forming earphone shell in existing mold, and improper force control can easily cause the damage of forming earphone shell.

[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a kind of earphone shell injection mold of quick demoulding, comprising:

[0007] Main body assembly, the main body assembly includes lower mould, mould cavity, upper mould and ejection hole, the mould cavity is set in lower mould middle part, the upper mould is movably connected in lower mould top, the ejection hole is set in lower mould middle part, and the ejection hole is communicated with mould cavity;

[0008] Quick protection demoulding assembly, the quick protection demoulding assembly includes receiving cylinder, buffer spring and cylindrical top pin, the receiving cylinder is movably connected in lower mould bottom, the buffer spring is movably connected in receiving cylinder, and the cylindrical top pin is movably connected in receiving cylinder simultaneously, and the cylindrical top pin side movably connects buffer spring.

[0009] Further, the main body assembly further includes feed pipe, limiting rod and limiting hole, the feed pipe is fixedly inserted into the upper mould top end, the limiting rod is fixedly connected to the lower mould top four corners, the limiting hole is formed through the upper mould four corners, and the limiting rod is movably inserted into the limiting hole.

[0010] Further, the main body assembly further includes support rod and base, one end of the support rod is fixedly connected to the lower mould bottom four corners, and the other end of the support rod is fixedly connected to the base bottom.

[0011] Further, the main body assembly further comprises a hydraulic lifting device, and the middle part of the top end of the base is fixedly connected with the hydraulic lifting device.

[0012] Further, the adaptive adjustment assembly comprises a first slot, a second slot, a sliding block, a placing slot and a moving spring, the first slot is arranged through the left and right sides of the receiving cylinder, the second slot is arranged through the upper and lower sides of the receiving cylinder, the sliding block is movably connected in the first slot and the second slot, the placing slot is arranged on the two sides of the cylindrical ejector pin, one end of the moving spring is fixedly connected to the cylindrical ejector pin in the placing slot, and the other end of the moving spring is fixedly connected to the sliding block.

[0013] Further, the first slot is twice as long as the second slot, and one side of the sliding block is provided in an arc shape.

[0014] Further, the adaptive adjustment assembly further comprises a rectangular slot and a square block, the rectangular slot is arranged at one side of the cylindrical ejector pin in the placing slot, the square block is fixedly connected to one side of the sliding block, and the square block is movably connected in the rectangular slot.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The utility model discloses, in the buffering spring and cylindrical ejector pin cooperation in receiving cylinder, when the opening speed of upper die is faster, the cylindrical ejector pin is impacted by the great force instantaneously, buffering spring can buffer this impact force through the elastic deformation of itself at this moment, prevent cylindrical ejector pin from damaging due to rigid impact, can also protect the forming earphone shell from being damaged simultaneously, can further prolong the service life of cylindrical ejector pin, reduce production cost.

[0017] Based on the above beneficial effects, by placing the sliding block in the first slot and the second slot of different lengths, the adjustment of different deformation amounts of the buffering spring can be realized, so that different forces can be applied to the cylindrical ejector pin, and then the adaptive adjustment can be made according to the hardness of the production raw material of the formed earphone shell, and the protection effect is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] Figure 1 It is the whole schematic view of the utility model;

[0020] Figure 2The upper die connection schematic diagram of the utility model;

[0021] Figure 3 The buffer spring connection schematic diagram of the utility model;

[0022] Figure 4 The slider connection schematic diagram of the utility model;

[0023] Figure 5 The rectangular groove opening schematic diagram of the utility model;

[0024] Figure 6 The cylindrical ejector pin connection schematic diagram of the utility model.

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] 101, lower die; 102, die cavity; 103, upper die; 104, ejection hole; 105, feeding pipe; 106, limiting rod; 107, limiting hole; 108, supporting rod; 109, base; 1010, hydraulic lifting device;

[0027] 201, receiving cylinder; 202, buffer spring; 203, cylindrical ejector pin;

[0028] 301, first slot; 302, second slot; 303, slider; 304, placing groove; 305, moving spring; 306, rectangular groove; 307, square block. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0030] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0031] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be described in further detail below with reference to the drawings.

[0032] Please refer to Figures 1-6 The embodiment is a earphone shell injection mold capable of rapid demolding, comprising:

[0033] The main body assembly comprises a lower die 101, a die cavity 102, an upper die 103 and an ejection hole 104. The die cavity 102 is arranged in the middle of the lower die 101. The upper die 103 is movably connected to the top of the lower die 101. The ejection hole 104 is arranged in the middle of the lower die 101 and is communicated with the die cavity 102.

[0034] The middle of the die cavity 102 in the lower die 101 is used for forming the earphone shell. The upper die 103 is used for pressure casting the material.

[0035] The quick protection demolding assembly comprises a receiving cylinder 201, a buffer spring 202 and a cylindrical ejector pin 203. The receiving cylinder 201 is movably connected to the bottom of the lower die 101. The buffer spring 202 is movably connected in the receiving cylinder 201. The cylindrical ejector pin 203 is movably connected in the receiving cylinder 201 and is movably connected with the buffer spring 202 on the side.

[0036] The middle of the receiving cylinder 201 is used for placing the buffer spring 202. The buffer spring 202 is used for protecting the cylindrical ejector pin 203.

[0037] The main body assembly further comprises a feeding pipe 105, a limiting rod 106 and a limiting hole 107. The feeding pipe 105 is fixedly inserted into the top end of the upper die 103. The limiting rod 106 is fixedly connected to the top four corners of the lower die 101. The limiting hole 107 is arranged in the four corners of the upper die 103 and is movably inserted with the limiting rod 106.

[0038] The feeding pipe 105 is used for feeding the injection material. The limiting rod 106 and the limiting hole 107 are used in cooperation to limit the moving range of the upper die 103.

[0039] The main body assembly further comprises a supporting rod 108 and a base 109. One end of the supporting rod 108 is fixedly connected to the bottom four corners of the lower die 101. The other end of the supporting rod 108 is fixedly connected to the bottom of the base 109.

[0040] The supporting rod 108 and the base 109 are used for supporting and receiving.

[0041] The main body assembly further comprises a hydraulic lifting device 1010. The hydraulic lifting device 1010 is fixedly connected to the middle of the top end of the base 109.

[0042] The hydraulic lifting device 1010 is connected to the top of the receiving cylinder 201 and is used for driving the up and down movement of the cylindrical ejector pin 203.

[0043] The adaptive adjusting assembly comprises a first slot 301, a second slot 302, a sliding block 303, a placing slot 304 and a moving spring 305. The first slot 301 is arranged on the left side of the receiving cylinder 201, and the second slot 302 is arranged on the upper and lower sides of the receiving cylinder 201. The sliding block 303 is movably connected in the first slot 301 and the second slot 302. The placing slot 304 is arranged on the two sides of the cylindrical thimble 203, and the moving spring 305 is fixedly connected to one end of the cylindrical thimble 203 in the placing slot 304. The other end of the moving spring 305 is fixedly connected to the sliding block 303.

[0044] The first slot 301 and the second slot 302 are arranged to provide protection for the connection of the sliding block 303. The placing slot 304 is arranged to provide protection for the connection of the moving spring 305 and the placement of the sliding block 303.

[0045] The first slot 301 is twice as long as the second slot 302, and the sliding block 303 is arranged in a circular arc shape on one side.

[0046] The length of the first slot 301 and the second slot 302 provides protection for the cylindrical thimble 203 to withstand different elastic forces.

[0047] The adaptive adjusting assembly further comprises a rectangular slot 306 and a square block 307. The rectangular slot 306 is arranged on one side of the cylindrical thimble 203 in the placing slot 304, and the square block 307 is fixedly connected to one side of the sliding block 303. The square block 307 is movably connected in the rectangular slot 306.

[0048] The rectangular slot 306 and the square block 307 are used in cooperation to limit the movement range of the sliding block 303.

[0049] Working principle: first, the upper die 103 upper limit hole 107 and limit rod 106 is connected, according to the earphone shell injection material hardness on the position of the slider 303 adjustment, when the hardness is soft, the slider 303 is placed in the first slot 301 (at this time, the length of the buffer spring 202 is longer, the deformation and the force is smaller), when the hardness is higher, press down the slider 303, at this time, the moving spring 305 is compressed in the placing groove 304, until the slider 303 moves to the inner wall of the receiving cylinder 201, the moving cylindrical ejector pin 203, until the slider 303 is moved to the second slot 302 position, then the moving spring 305 ejects the slider 303 at the second slot 302 (at this time, the buffer spring 202 is compressed, the force is larger), then open the hydraulic lifting device 1010, drive the receiving cylinder 201 and the cylindrical ejector pin 203 upwards, until the top of the cylindrical ejector pin 203 is flush with the ejection hole 104, then the raw materials are injected into the cavity 102 through the feeding pipe 105, when the raw materials are formed, the hydraulic lifting device 1010 is opened, the cylindrical ejector pin 203 is driven upwards to eject the formed earphone shell, this step can protect the formed earphone shell from being damaged, and can be adjusted according to the hardness of the production raw material of the formed earphone shell.

[0050] In the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "set", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rapid demolding earphone shell injection mold, characterized in that, Include: The main body assembly, the main body assembly includes lower die (101), die cavity (102), upper die (103) and ejection hole (104), the lower die (101) middle part is provided with die cavity (102), the lower die (101) top is movably connected with upper die (103), the lower die (101) middle part is provided with ejection hole (104), the ejection hole (104) is communicated with die cavity (102); The quick protection demolding assembly, the quick protection demolding assembly includes receiving cylinder (201), buffer spring (202) and cylindrical ejector pin (203), the lower die (101) bottom is movably connected with receiving cylinder (201), the receiving cylinder (201) is movably connected with buffer spring (202), the receiving cylinder (201) is movably connected with cylindrical ejector pin (203) at the same time, the cylindrical ejector pin (203) side is movably connected with buffer spring (202).

2. The earphone shell injection mold capable of rapid demolding according to claim 1, characterized in that, The main body assembly further includes feed pipe (105), limiting rod (106) and limiting hole (107), the upper die (103) top end is fixedly inserted with feed pipe (105), the lower die (101) top four corners are fixedly connected with limiting rod (106), the upper die (103) four corners are provided with limiting hole (107), and the limiting hole (107) is movably inserted with limiting rod (106).

3. The earphone shell injection mold capable of rapid demolding according to claim 1, wherein, The main body assembly further includes support rod (108) and base (109), one end of the lower die (101) bottom four corners is fixedly connected with support rod (108), and the other end of the support rod (108) is fixedly connected with base (109) at the bottom.

4. The earphone shell injection mold capable of rapid demolding according to claim 3, characterized in that, The main body assembly further includes hydraulic lifting device (1010), and the base (109) top end middle part is fixedly connected with hydraulic lifting device (1010).

5. The earphone shell injection mold capable of rapid demolding according to claim 1, characterized in that, Further include adaptive adjustment assembly, the adaptive adjustment assembly includes first slot (301), second slot (302), sliding block (303), placement slot (304) and moving spring (305), the receiving cylinder (201) left and right sides are provided with first slot (301), the receiving cylinder (201) upper and lower sides are provided with second slot (302), the first slot (301) and the second slot (302) are movably connected with sliding block (303), the cylindrical ejector pin (203) both sides are provided with placement slot (304), one end of the moving spring (305) is fixedly connected with the cylindrical ejector pin (203) inside placement slot (304), and the other end of the moving spring (305) is fixedly connected with sliding block (303).

6. The earphone shell injection mold capable of rapid demolding according to claim 5, characterized in that, The length of the first slot (301) is twice the length of the second slot (302), and one side of the sliding block (303) is provided in arc shape.

7. The earphone shell injection mold capable of rapid demolding according to claim 5, characterized in that, The adaptive adjustment assembly further includes rectangular groove (306) and square block (307), the rectangular groove (306) is arranged at one side of the cylindrical ejector pin (203) in the placement slot (304), one side of the sliding block (303) is fixedly connected with square block (307), and the rectangular groove (306) is movably connected with square block (307).

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