Production method of long-rod simulation electronic candle

Abstract

The invention provides a production method of a long-rod simulation electronic candle, the long-rod simulation electronic candle comprises a machine core assembly, a lamp holder, a wax tube and an end cover, and the long-rod simulation electronic candle is produced by the following steps: a wax tube forming step: producing the wax tube through a wax filling mold which comprises an outer mold with a tubular hollow cavity, a rod-shaped metal inner mold is detachably fixed to the bottom end of the hollow cavity along the axis. Molten wax liquid is poured into the cavity, when the molten wax liquid is solidified and cannot flow, the inner mold is pulled out along the axis, and after the wax liquid is completely shaped, the wax pipe is separated from the outer mold; an assembling step: the machine core assembly comprises a tubular battery bin, a long-strip-shaped PCB (Printed Circuit Board) and an LED (Light Emitting Diode); and the movement components are assembled into a whole and are arranged in the wax tube from the bottom end. According to the utility model, the wax pipe is independently formed at first, and then the machine core assembly is assembled in the wax pipe, so that sealing is not needed, materials for sealing the machine core assembly are saved, the machine core assembly is not scrapped due to poor wax liquid pouring, and the comprehensive cost of the product is obviously reduced.

Description

Technical Field

[0001] The invention relates to the technical field of simulated electronic candles, in particular to a production method of a long-stem simulated electronic candle. Background Art

[0002] Electronic candles are smokeless, safe, and have a long service life. They have been used to replace traditional candles in many occasions. In order to improve the simulation of electronic candles, in addition to the need to imitate the dynamic effect of candle flames, the candle stem must also have the texture of real wax. Therefore, the stem of the simulated electronic candle is also covered with a layer of real wax.

[0003] Limited by the volume of the movement, the current mainstream simulated electronic candles are basically large candles with a diameter of more than three inches. Long-stem candles have a small diameter and a long length, and are restricted by space. Their structural design and production process are significantly different from those of large-sized mainstream simulated electronic candles; especially in the production process of the real wax layer, since the real wax layer needs to cover the entire long-stem candle body, which is not only thin but also very long, it is conventionally believed that the real wax layer of a long-stem candle is difficult to form alone and reach the strength required for assembly with the long-stem candle body. Therefore, the real wax layer of existing long-stem candles is directly placed in a wax pouring mold after the product is assembled to cast wax liquid, and the real wax layer solidifies and bonds to the product surface.

[0004] The Chinese invention patent with the authorization announcement number CN201836788U discloses a rod-shaped simulated candle, which is the most typical rod-shaped simulated candle structure at present, including a light-emitting diode, a control circuit, a battery, a lamp holder, a wax shell, a metal tube, and a cover, and the metal tube is divided into three sections: a battery compartment body, a movement compartment body, and a seat body that are threaded together. When producing the rod-shaped simulated candle, it is necessary to complete the electrical connection and assembly of the light-emitting diode, the control circuit, the various sections of the metal tube, and the cover into a closed movement structure, and then cast the wax shell on the outer layer. The rod-shaped simulated candle needs to electrically connect the various parts and accurately assemble them in the metal tube, which makes the assembly of the movement structure complicated. In addition, during the molding process of the wax shell, the requirements for sealing are high. In actual production, the defective rate caused by the infiltration of wax liquid into the interior is as high as 20%, and because the cost of cleaning the wax liquid is too high, the poorly cast movement structure can only be scrapped as a whole, resulting in very high product costs.

[0005] In order to reduce costs, the subsequent improved products merged the movement compartment and the seat into a plastic tube, and connected it to the metal tube as the battery compartment through threads. Although this structure reduces the material cost of the product, in the process of pouring the real wax layer, in addition to the defects caused by sealing, new problems also arise. When pouring the wax liquid, the plastic tube is placed downward into the wax filling mold. Due to the different thermal conductivity of the plastic tube and the metal tube, the speed at which the molten wax liquid solidifies on the product surface is also different. In addition, the wax liquid pouring space is small, resulting in the wax liquid in a section of the plastic tube due to premature condensation and cannot be filled evenly. After cooling, the real wax layer will have depressions or holes. Therefore, it can only be repeatedly pierced from the top to the bottom during the wax liquid pouring process to make the wax liquid filling more evenly. Similarly, if the pouring is poor, the entire movement structure will be scrapped.

[0006] In summary, in the production process of existing long-stem simulated candles, not only is the assembly of the movement structure complicated and the production efficiency low, but the process of pouring the real wax layer is also inefficient and has a very high defective rate, which makes the overall cost of the product high. Summary of the invention

[0007] The object of the present invention is to provide a method for producing a long-stem simulated electronic candle which has simpler assembly and lower overall product cost.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is:

[0009] A method for producing a long-stem simulated electronic candle, the long-stem electronic candle comprising a core assembly, a flame-like light-transmitting lamp holder, a wax tube, and an end cap, and the production is carried out by the following steps:

[0010] Wax tube molding step: producing a long cylindrical wax tube through a wax pouring mold, the wax pouring mold comprising an outer mold with a tubular hollow cavity, the inner surface of the hollow cavity is used to mold the outer surface of the wax tube, and a rod-shaped metal inner mold for molding the inner surface of the wax tube is detachably fixed to the bottom end of the hollow cavity along the axis; pouring molten wax liquid in the cavity between the outer mold and the inner mold, when the molten wax liquid solidifies to the point where it cannot flow, pulling out the inner mold along the axis, and separating the wax tube from the outer mold after the wax liquid is completely formed, and taking out the wax tube;

[0011] Assembly steps: The movement assembly includes a tubular battery compartment, a long PCB board, and an LED; first, the LED is fixed to the top of the PCB board by pin welding, and the PCB board is electrically connected and vertically fixed to the top of the battery compartment, then, the movement assembly is installed into the wax tube from the bottom as a whole, so that the wax tube sleeve is fixed to the outside of the battery compartment, and the LED extends from the top of the wax tube, finally, the lamp holder is sleeved and fixed on the LED, and the end cover is assembled and fixed to the bottom of the battery compartment.

[0012] In a preferred embodiment, the wax tube has a top end surface, and the top end surface has a through hole for the LED to pass through.

[0013] A preferred solution is that in the wax tube molding step, the top end surface of the wax tube is an inner concave curved surface imitating the burning end of a candle, the wax pouring mold includes a bottom mold for molding the top end surface, the inner mold is detachably inserted in the center of the bottom mold, and the outer mold is a metal tube, and the outer mold is detachably mounted on the bottom mold; when the molten wax liquid solidifies to the point where it cannot flow, the inner mold is rotated and pulled out axially, and after the wax liquid is completely solidified, the outer mold is separated from the bottom mold, and the wax tube is separated from the outer mold axially.

[0014] In a preferred embodiment, in the wax tube forming step, the outer mold is preheated before pouring the molten wax liquid into the cavity of the wax pouring mold.

[0015] A preferred solution is that in the wax tube molding step, after pouring molten wax liquid into the cavity of the wax pouring mold, the outer mold is forcibly cooled by cooling liquid.

[0016] In a preferred embodiment, the battery compartment is a plastic component, including two halves connected to the left and right halves, and the bottom end of the PCB board is clamped and fixed to the top of the battery compartment.

[0017] In a preferred embodiment, the outer wall of the battery compartment has an axially concave wire groove for accommodating positive and negative electrical connection wires.

[0018] In a preferred embodiment, the bottom end of the outer peripheral wall of the battery compartment has a threaded section exposed at the bottom end of the wax tube, and the end cover is connected to the threaded section via an internal thread.

[0019] In a preferred embodiment, a push switch for controlling the on and off of the electrical connection of the battery compartment is provided at the bottom of the end cover.

[0020] The beneficial effects of the present invention are as follows: in the wax tube molding step, the inner mold adopts a detachable rod-shaped metal with good thermal conductivity. After the inner mold absorbs the heat of the molten wax liquid, it will be maintained at a certain temperature, which can avoid the wax liquid from condensing prematurely, so that the wax liquid is filled evenly and does not need to be repeatedly pierced, thereby making the wax tube molding effect good and the molding efficiency high. When the wax liquid begins to solidify, the inner mold is pulled out. At this time, the wax liquid has a certain plasticity, which can avoid the wax tube from being broken due to shaking and squeezing the wax tube during the demolding process of the inner mold; the battery compartment, PCB board and LED of the movement assembly can be assembled into a whole along the axial direction, and then loaded into the wax tube from the bottom. Compared with the existing long-stem candle structure, the movement assembly can be assembled in an open manner, and the assembly efficiency is greatly improved; the wax tube is first molded separately, and then the movement assembly is assembled in the wax tube, which overcomes the technical prejudice that the existing long-stem candle must use a casting process to mold the real wax layer. Because there is no need to seal, the plastic or metal tube material for sealing the movement assembly is omitted, and the movement assembly will not be scrapped due to poor wax liquid casting, thereby significantly reducing the overall cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the electronic candle in the embodiment;

[0023] Figure 2 This is a schematic diagram of the exploded structure of the electronic candle parts in the embodiment;

[0024] Figure 3 Schematic diagram of the exploded structure of the wax casting mold in the embodiment. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings:

[0026] refer to Figures 1 to 3 A method for producing a long-stem simulated electronic candle, the long-stem electronic candle comprises a movement component 1, a flame-shaped light-transmitting lamp holder 2, a wax tube 3, and an end cap 4, and is produced by the following steps:

[0027] Wax tube 3 molding step: a long cylindrical wax tube 3 is produced by a wax pouring mold 5, wherein the wax pouring mold 5 comprises an outer mold 51 having a tubular hollow cavity 511, the inner surface of the hollow cavity 511 is used to mold the outer surface of the wax tube 3, and a rod-shaped metal inner mold 52 for molding the inner surface of the wax tube 3 is detachably fixed to the bottom end of the hollow cavity 511 along the axis; molten wax liquid is poured into the cavity between the outer mold 51 and the inner mold 52, and when the molten wax liquid solidifies to the point where it cannot flow, the inner mold 52 is pulled out along the axis, and after the wax liquid is completely molded, the wax tube 3 is separated from the outer mold 51, and the wax tube 3 is taken out;

[0028] Assembly steps: The movement assembly 1 includes a tubular battery compartment 11, a long PCB board 12, and an LED 13; first, the LED 13 is fixed to the top of the PCB board 12 by pin welding, and the PCB board 12 is electrically connected and vertically fixed to the top of the battery compartment 11, then, the movement assembly 1 is installed as a whole into the wax tube 3 from the bottom, so that the wax tube 3 is sleeved and fixed on the outside of the battery compartment 11, and the LED 13 extends from the top of the wax tube 3, finally, the lamp holder 2 is sleeved and fixed on the LED 13, and the end cover 4 is assembled and fixed to the bottom end of the battery compartment 11.

[0029] In the step of molding the wax tube 3, the inner mold 52 is made of a detachable rod-shaped metal with good heat conduction effect. After the inner mold 52 absorbs the heat of the molten wax liquid, it will be kept at a certain temperature, which can prevent the wax liquid from condensing prematurely, so that the wax liquid is filled evenly and there is no need for repeated puncture, thereby making the wax tube 3 have a good molding effect and high molding efficiency. When the wax liquid begins to solidify, the inner mold 52 is pulled out. At this time, the wax liquid has a certain plasticity, which can prevent the wax tube 3 from being broken due to shaking and squeezing during the demolding process of the inner mold 52; the battery compartment 11, PCB board 12 and LED 13 of the movement assembly 1 can be assembled into a whole along the axial direction, and then loaded into the wax tube 3 from the bottom. In the existing long-stem candle structure, the electrical connection and assembly of the PCB board 12, LED 13 and the battery compartment 11 do not need to be carried out step by step in the metal or plastic tube. The movement component 1 is an open assembly, and the assembly efficiency is greatly improved. The wax tube 3 is first formed separately, and then the movement component 1 is assembled in the wax tube 3, which overcomes the technical prejudice that the existing long-stem candle must use a casting process to form a real wax layer. Since there is no need for sealing, the plastic or metal tube material for sealing the movement component 1 is omitted, and the movement component 1 will not be scrapped due to poor wax liquid casting. The comprehensive cost of the product is only about 1 / 5 of the existing similar products, which significantly reduces the comprehensive cost of the product.

[0030] In this embodiment, the wax tube 3 has a top surface 31, and the top surface 31 has a through hole 311 for the LED 13 to pass through. The top surface 31 is directly formed on the wax tube 3, so that the movement assembly 1 does not need to be separately designed with a decorative component assembled on the top of the wax tube 3, and the through hole 311 facilitates the LED 13 to extend outward from the inside of the wax tube 3. The design of the top surface 31 of the wax tube 3 simplifies the product structure and assembly.

[0031] In this embodiment, in the step of molding the wax tube 3, the top end surface 31 of the wax tube 3 is an inner concave curved surface imitating the burning end of a candle, and the wax pouring mold 5 includes a bottom mold 53 for molding the top end surface 31, and the inner mold 52 is detachably inserted in the center of the bottom mold 53, and the outer mold 51 is a metal tube, and the outer mold 51 is detachably sleeved on the bottom mold 53; when the molten wax liquid solidifies to the point where it cannot flow, the inner mold 52 is rotated and pulled out axially, and after the wax liquid is completely solidified, the outer mold 51 is separated from the bottom mold 53, and the wax tube 3 is separated from the outer mold 51 axially. The outer mold 51 is a metal tube with high thermal conductivity. During the wax pouring process, after the metal of the outer mold 51 absorbs the heat of the wax liquid, the wax liquid can be kept at a certain temperature during the pouring process to avoid premature condensation of the wax liquid and the inability to pour evenly in the mold; at the same time, a bottom mold 53 is provided, and the outer mold 51 and the bottom mold 53 are detachable and matched, which not only facilitates the processing of the bottom mold 53 for forming the concave curved surface, but also facilitates the axial separation of the wax tube 3 and the outer mold 51. At this time, the outer mold 51 does not need to be made into a left and right split structure, which avoids the appearance of a mold line on the wax tube 3; the inner mold 52 is rotated and pulled out axially, and the inner wall of the wax tube 3 can be prevented from being deformed due to the pulling of the inner mold 52 during the rotation, thereby ensuring the smoothness of the inner wall of the wax tube 3.

[0032] In this embodiment, in the step of molding the wax tube 3, the outer mold 51 is preheated before pouring the molten wax liquid into the cavity of the wax pouring mold 5. The outer mold 51 is a metal tube, and after being preheated, it can be ensured that the wax liquid will not condense prematurely during the pouring process and cause uneven flow, thereby improving the molding quality and production efficiency of the wax tube 3.

[0033] In this embodiment, in the step of molding the wax tube 3, after pouring the molten wax liquid into the cavity of the wax pouring mold 5, the outer mold 51 is forcibly cooled by the cooling liquid. After the wax pouring is completed, the outer mold 51 is forcibly cooled, which can not only shorten the molding time of the wax tube 3, but also make it easier for the wax tube 3 to be separated from the outer mold 51.

[0034] In this embodiment, the battery compartment 11 is a plastic component, including two halves connected in a left and right manner, and the bottom end of the PCB board 12 is clamped and fixed to the top of the battery compartment 11. The battery compartment 11 is made of a plastic component, which can further reduce the material cost of the product compared to the existing metal tube battery compartment 11. Moreover, the left and right panels are combined to conveniently clamp and fix the PCB board 12, making installation simple and structurally reliable.

[0035] In this embodiment, the outer wall of the battery compartment 11 has an axially concave groove 111 for accommodating the positive and negative electrical connection wires. Providing the concave groove 111 on the outer wall will not affect the combination of the battery compartment 11 and the wax tube 3. At the same time, compared with setting the wires on the inner wall of the battery compartment 11, poor electrical connection can be avoided when installing and replacing the battery.

[0036] In this embodiment, the bottom end of the outer peripheral wall of the battery compartment 11 has a threaded section 112 exposed at the bottom end of the wax tube 3, and the end cover 4 is connected to the threaded section 112 through an internal thread. Furthermore, a push switch for controlling the on and off of the electrical connection of the battery compartment 11 is provided at the bottom of the end cover 4. The threaded section 112 is exposed at the end of the wax tube 3, which can facilitate the assembly and combination of the battery compartment 11 and the wax tube 3 and avoid damage to the wax tube 3; and the end cover 4, which is also used as a switch, will not contact the wax tube 3 during the assembly and disassembly process, avoiding damage to the wax tube 3 when replacing the battery later.

[0037] The above description does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for producing a long-stem simulated electronic candle, characterized in that: The long-stem electronic candle comprises a core assembly, a flame-shaped light-transmitting lamp holder, a wax tube, and an end cap, and is produced by the following steps: Wax tube molding step: producing a long cylindrical wax tube through a wax pouring mold, the wax pouring mold comprising an outer mold with a tubular hollow cavity, the inner surface of the hollow cavity is used to mold the outer surface of the wax tube, and a rod-shaped metal inner mold for molding the inner surface of the wax tube is detachably fixed to the bottom end of the hollow cavity along the axis; pouring molten wax liquid in the cavity between the outer mold and the inner mold, when the molten wax liquid solidifies to the point where it cannot flow, pulling out the inner mold along the axis, and separating the wax tube from the outer mold after the wax liquid is completely formed, and taking out the wax tube; Assembly steps: The movement assembly includes a tubular battery compartment, a long PCB board, and an LED; first, the LED is fixed to the top of the PCB board by pin welding, and the PCB board is electrically connected and vertically fixed to the top of the battery compartment, then, the movement assembly is installed into the wax tube from the bottom as a whole, so that the wax tube sleeve is fixed to the outside of the battery compartment, and the LED extends from the top of the wax tube, finally, the lamp holder is sleeved and fixed on the LED, and the end cover is assembled and fixed to the bottom of the battery compartment.

2. The method for producing a long-stem simulated electronic candle according to claim 1, characterized in that: The wax tube has a top end surface, and the top end surface has a through hole for the LED to pass through.

3. The method for producing a long-stem simulated electronic candle according to claim 2, characterized in that: In the wax tube molding step, the top end surface of the wax tube is an inner concave curved surface imitating the burning end of a candle, the wax pouring mold includes a bottom mold for molding the top end surface, the inner mold is detachably inserted in the center of the bottom mold, and the outer mold is a metal tube, and the outer mold is detachably mounted on the bottom mold; when the molten wax liquid solidifies to the point where it cannot flow, the inner mold is rotated and pulled out axially, and after the wax liquid is completely solidified, the outer mold is separated from the bottom mold, and the wax tube is separated from the outer mold axially.

4. The method for producing a long-stem simulated electronic candle according to claim 3, characterized in that: In the wax tube forming step, the outer mold is preheated before pouring molten wax into the cavity of the wax pouring mold.

5. The method for producing a long-stem simulated electronic candle according to claim 4, characterized in that: In the wax tube molding step, after pouring molten wax liquid into the cavity of the wax pouring mold, the outer mold is forcibly cooled by cooling liquid.

6. The method for producing a long-stem simulated electronic candle according to claim 1, characterized in that: The battery compartment is a plastic component, including two halves connected on the left and right sides, and the bottom end of the PCB board is clamped and fixed on the top of the battery compartment.

7. The method for producing a long-stem simulated electronic candle according to claim 6, characterized in that: The outer wall of the battery compartment has an axially concave wire groove for accommodating positive and negative electrical connection wires.

8. The method for producing a long-stem simulated electronic candle according to claim 6, characterized in that: The bottom end of the outer peripheral wall of the battery compartment has a threaded section exposed at the bottom end of the wax tube, and the end cover is combined with the threaded section through an internal thread.

9. The method for producing a long-stem simulated electronic candle according to claim 8, characterized in that: A push switch for controlling the on and off of the electrical connection of the battery compartment is provided at the bottom of the end cover.

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