Light strip extrusion equipment and production method

Abstract

The present invention relates to the technical field of lighting fixtures, and discloses a light strip extrusion device and production method, including: an extrusion piece, an extrusion disc and a molding disc; the extrusion piece has a first channel for a first raw material to flow; the extrusion disc has a second channel for a second raw material to flow and a third channel for a third raw material to flow; the extrusion disc has an extrusion channel; the extrusion piece is inserted in the extrusion channel, and the first channel is connected to the extrusion channel; the molding disc has a molding opening; the molding disc is fixedly connected to the extrusion disc, and the molding openings are all connected to the extrusion channel, the second channel and the third channel. Extrusion equipment and production method capable of extruding a light strip at one time, so as to improve the product quality of the light strip and improve the production efficiency of the light strip.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting appliances, and in particular to a light strip extrusion device and a production method. Background Art

[0002] At present, light strips are widely used, usually for urban scenery, logo lighting and home decoration, etc. The production of light strips is generally extruded by co-extrusion equipment.

[0003] In order to achieve the desired effect, the light strip needs to be coated with multiple layers of different silicone to adjust the light color or irradiation angle of the light strip. Existing light strips need to have multiple layers of different silicone layers. The existing method is to extrude the corresponding silicone layers through multiple extrusion equipment. Therefore, the production of existing light strips requires multiple extrusion molding. The production steps of the light strip are many, which reduces the production efficiency of the light strip. Since multiple extrusion molding is required, the semi-finished product after each extrusion needs to be placed in the corresponding place and then sent to the next extrusion equipment for the next extrusion process. During this process, dust and other impurity particles will adhere to the light strip, resulting in impurities or corresponding bubbles left on the light strip after the next extrusion process is completed, affecting the quality of the product. Summary of the invention

[0004] The purpose of the present invention is to provide an extrusion device and a production method capable of extruding a light strip at one time, so as to improve the product quality of the light strip and improve the production efficiency of the light strip.

[0005] In order to achieve the above-mentioned object, the present invention provides a light strip extrusion device on one hand, comprising: an extrusion piece, an extrusion disc and a molding disc;

[0006] The extrusion has a first channel for allowing the first raw material to flow;

[0007] The extrusion disc has a second channel for the second raw material to flow and a third channel for the third raw material to flow; the extrusion disc has an extrusion channel; the extrusion piece is inserted in the extrusion channel, and the first channel is connected to the extrusion channel;

[0008] The molding disc has a molding opening; the molding disc is fixedly connected to the extrusion disc, and the molding openings are communicated with the extrusion channel, the second channel and the third channel.

[0009] Among them, the first channel, the second channel and the third channel are all connected to the corresponding pipelines and the corresponding raw materials. The pipelines are provided with corresponding pump bodies for driving the raw materials in the pipelines to move toward the forming openings, or the corresponding raw materials are loaded into the corresponding tank bodies and then the tank bodies are pressurized so that the raw materials can be pressed into the pipelines and passed into the corresponding channels.

[0010] A heater is installed in the pipeline or tank to ensure that the raw materials have good fluidity.

[0011] Compared with the prior art, the light strip extrusion device of the embodiment of the present invention has the following beneficial effects: by simultaneously introducing the first raw material, the second raw material and the third raw material into the first channel, the second channel and the third channel respectively, the raw materials converge at the outlet of the extrusion channel and are extruded through the molding port to form. One-time extrusion molding is achieved. The production efficiency of the product is improved, and the generation of impurities and bubbles caused by multiple extrusion molding is avoided, thereby improving the quality of the product.

[0012] The cooperation between the extrusion piece, the extrusion disc and the molding disc of the extrusion equipment can realize the one-time extrusion molding of the light strip, and the structure is simple, the design is reasonable and the operation is reliable.

[0013] Furthermore, the extrusion disk and the molding disk are both provided with mounting holes, and the extrusion disk and the molding disk are fixedly connected together by bolts passing through the mounting holes. The mounting holes are provided so as to facilitate the bolts to pass through and fix them together.

[0014] Furthermore, the second channel and the third channel are both groove-shaped; the outer surface of the forming disc covers the second channel and the third channel. The second channel and the third channel can be directly driven out through the driveway, which is simple to operate and reduces the difficulty of processing the extrusion disc. The outer surface of the forming disc covers the second channel and the third channel, which can reduce the outflow of raw materials from the corresponding channels.

[0015] Specifically, a first through hole communicating with the second channel is provided on the extrusion disk, and a second through hole communicating with the second channel is provided on the extrusion disk. The first through hole and the second through hole are provided to facilitate connection of corresponding pipelines to communicate corresponding raw materials.

[0016] Furthermore, the outer surface of the forming disk is pressed and sealed with the edge of the notch of the second channel and the edge of the notch of the third channel. The pressing and sealing can effectively reduce the leakage of the corresponding raw materials from the notch of the corresponding channel.

[0017] Specifically, a sealing ring may be provided or a sealing glue may be applied on the notch edge of the second channel and the notch edge of the third channel, and then pressed together with the outer surface of the forming disk, which can more effectively reduce leakage.

[0018] Furthermore, the second channel and the third channel are both connected to the outer wall of the extrusion channel; and the inlet end of the molding port is sleeved at the outlet of the extrusion channel, and the inner wall of the molding port is spaced apart from the outer wall of the extrusion channel. The raw materials in the second channel and the third channel will be extruded from the space between the molding port and the extrusion channel, and the first raw material will be extruded from the extrusion channel, so the extrusion molded product is the second raw material and the third raw material attached to the outside of the first raw material, so that the light strip has multiple layers of silicone.

[0019] Furthermore, the third channel and the second channel are enclosed on the outer wall of the extrusion channel, and the second channel is separated from the third channel by a partition. The third channel and the second channel are enclosed on the outer wall of the extrusion channel, so that the extruded third raw material and the second raw material are jointly coated on the outside of the first raw material, and the partition can separate the second raw material and the third raw material, thereby avoiding the mixing of the raw materials in the extrusion disk.

[0020] Specifically, the partition is fixedly connected to the extrusion disc, and the partition is formed after a lathe turns the second channel and the third channel on the extrusion disc, that is, the partition portion between the second channel and the third channel.

[0021] Specifically, the second raw material in the second channel is a silicone material with light-blocking material such as masterbatch added to it, so that the second raw material is opaque, and the part outside the first raw material covered by the second raw material is not impenetrable by light, so that the light can only be emitted from the third raw material, thereby adjusting the irradiation direction of the light.

[0022] The third raw material in the third channel is to add a certain pigment and a certain diffusant to the silicone material, so that the third pigment presents a certain color and is transparent, so that the light emitted by the light strip presents a certain color, thereby adjusting the light color of the light strip. The added diffusant can make the light dispersed evenly, and improve the contrast effect of the light strip.

[0023] Furthermore, a groove is provided on the inner wall of the extrusion channel, and the groove extends along the extension direction of the extrusion channel, and the bottom of the groove is located outside the inlet end of the molding port. The groove is provided and the depth of the groove is greater than the distance between the inlet end of the molding port and the outlet of the extrusion channel, so that the first raw material located at the groove in the extruded light strip product is not covered by the second raw material; the first raw material is made of colorless and transparent silicone, so it is convenient for the staff to see the inside of the light strip through the first raw material at the first groove.

[0024] Generally, the wick of a light strip has a corresponding cutting position. During the extrusion process of the light strip, the wick is extruded from the first channel and the extrusion channel together with the first raw material, and the wick is covered by the first raw material; and the first raw material at the groove is not covered by the second raw material, which makes it easier for the staff to find the corresponding cutting position of the light strip.

[0025] Furthermore, a support column is provided in the second channel, and the support column abuts against the outer surface of the forming disk. The support column is provided to support the outer surface of the forming disk, and the outer surface of the wall forming disk crushes the notch edge of the second channel.

[0026] Another aspect of the present invention provides a method for producing a light strip, which is performed using a light strip extrusion device and comprises the following steps:

[0027] S1, mixing a strip-shaped wick with a first raw material, passing the wick through a first channel, and connecting the first raw material with the first channel;

[0028] S2, connecting the second raw material to the second channel, and connecting the third raw material to the third channel;

[0029] S3, injecting the first raw material, the second raw material, and the third raw material into the first channel, the second channel, and the third channel simultaneously and correspondingly; and obtaining a co-extruded light strip in the molding opening.

[0030] Compared with the prior art, the light strip production method according to the embodiment of the present invention has the beneficial effect of: by injecting the first raw material, the second raw material and the third raw material into the first channel, the second channel and the third channel simultaneously and one by one; a co-extruded light strip is obtained in the molding passage, and one-time molding and extrusion are achieved, thereby improving the production efficiency of the product and improving the quality of the product.

[0031] Furthermore, after executing step S1, a light-blocking material is added to the second raw material and stirred evenly, and a pigment of a predetermined color is added to the third raw material and stirred evenly. The light-blocking material is a masterbatch, and after the masterbatch is mixed with silica gel, the silica gel becomes a certain color, but is not transparent, so that the second raw material is not light-transmissive, so that light cannot penetrate, and the pigment of the predetermined color is added to the third raw material, so that the silica gel becomes a predetermined color, but the silica gel still remains transparent, so that the third raw material can only transmit light of a predetermined color, so as to adjust the light color and irradiation direction of the light strip.

[0032] Specifically, the first raw material is made of a colorless and transparent material, which can ensure that the light emitted by the wick passes through the first raw material as much as possible, thereby improving the light transmittance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is an assembly diagram of an extrusion device according to an embodiment of the present invention;

[0034] Figure 2 The extrusion device of the embodiment of the present invention Figure 1 Left view of

[0035] Figure 3 Embodiment of the present invention Figure 2 Enlarged view of point A in the middle;

[0036] Figure 4 is an exploded view of an extrusion device according to an embodiment of the present invention;

[0037] Figure 5 It is a schematic diagram of the structure of an extrusion disk according to an embodiment of the present invention;

[0038] Figure 6 is a flow chart of a method for producing a light strip according to an embodiment of the present invention;

[0039] Figure 7 is a schematic diagram of the structure of a light strip according to an embodiment of the present invention;

[0040] In the figure, 1, extrusion piece; 11, first channel; 2, extrusion disc; 21, extrusion channel; 22, second channel; 23, third channel; 24, groove; 25, partition; 26, support column; 27, first through hole; 28, second through hole; 3, molding disc; 31, molding opening; 4, mounting hole; 51, wick; 52, first raw material; 53, second raw material; 54, third raw material. DETAILED DESCRIPTION

[0041] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0043] like Figure 1-7 As shown, an embodiment of the present invention provides a light strip extrusion device, comprising: an extrusion piece 1, an extrusion disc 2 and a molding disc 3;

[0044] The extrusion piece 1 has a first channel 11 for the first raw material 52 to flow;

[0045] The extrusion disc 2 has a second channel 22 for the second raw material 53 to flow through and a third channel 23 for the third raw material 54 to flow through; the extrusion disc 2 has an extrusion channel 21; the extrusion piece 1 is inserted in the extrusion channel 21, and the first channel 11 is connected to the extrusion channel 21;

[0046] The forming disc 3 has a forming opening 31 ; the forming disc 3 is fixedly connected to the extrusion disc 2 , and the forming opening 31 is connected to the extrusion channel 21 , the second channel 22 and the third channel 23 .

[0047] Among them, the first channel 11, the second channel 22 and the third channel 23 are all connected to the corresponding pipelines and the corresponding raw materials. The pipelines are provided with corresponding pump bodies for driving the raw materials in the pipelines to move toward the forming opening 31, or the corresponding raw materials are loaded into the corresponding tank bodies and then the tank bodies are pressurized so that the raw materials can be pressed into the pipelines and passed into the corresponding channels.

[0048] A heater is installed in the pipeline or tank to ensure that the raw materials have good fluidity.

[0049] Compared with the prior art, the light strip extrusion device of the embodiment of the present invention has the following beneficial effects: by simultaneously introducing the first raw material 52, the second raw material 53 and the third raw material 54 into the first channel 11, the second channel 22 and the third channel 23 respectively, the raw materials converge at the outlet of the extrusion channel 21 and are extruded through the molding port 31. One-time extrusion molding is achieved. The production efficiency of the product is improved, and the generation of impurities and bubbles caused by multiple extrusion molding is avoided, thereby improving the quality of the product.

[0050] The extrusion piece 1, the extrusion disc 2 and the forming disc 3 of the extrusion equipment cooperate with each other to realize one-time extrusion forming of the light strip, and the structure is simple, the design is reasonable and the operation is reliable.

[0051] In one embodiment, both the extrusion disc 2 and the forming disc 3 are provided with mounting holes 4, and the extrusion disc 2 and the forming disc 3 are fixedly connected together by bolts passing through the mounting holes 4. The mounting holes 4 are provided to facilitate the bolts to pass through and fix together.

[0052] In one embodiment, the second channel 22 and the third channel 23 are both groove-shaped; the outer surface of the forming disc 3 covers the second channel 22 and the third channel 23. The second channel 22 and the third channel 23 can be directly driven out through the driveway, which is simple to operate and reduces the difficulty of processing the extrusion disc 2. The outer surface of the forming disc 3 covers the second channel 22 and the third channel 23, which can reduce the outflow of raw materials from the corresponding channels.

[0053] Specifically, the extrusion disc 2 is provided with a first through hole 27 communicating with the second channel 22, and the extrusion disc 2 is provided with a second through hole 28 communicating with the second channel 22. The first through hole 27 and the second through hole 28 are provided to facilitate connection of corresponding pipelines to communicate corresponding raw materials.

[0054] In one embodiment, the outer surface of the forming disk 3 is pressed and sealed with the notch edge of the second channel 22 and the notch edge of the third channel 23. The pressing and sealing can effectively reduce the leakage of the corresponding raw materials from the notch of the corresponding channel.

[0055] Specifically, sealing rings or sealants may be provided at the notch edges of the second channel 22 and the notch edges of the third channel 23 and then pressed together with the outer surface of the forming disk 3 to more effectively reduce leakage.

[0056] In one embodiment, the second channel 22 and the third channel 23 are both connected to the outer wall of the extrusion channel 21; and the inlet end of the molding port 31 is sleeved at the outlet of the extrusion channel 21, and the inner wall of the molding port 31 is spaced apart from the outer wall of the extrusion channel 21. The raw materials in the second channel 22 and the third channel 23 are extruded from the space between the molding port and the extrusion channel 21, and the first raw material 52 is extruded from the extrusion channel 21, so the extruded product is the second raw material 53 and the third raw material 54 attached to the outside of the first raw material 52, so that the light strip has multiple layers of silicone.

[0057] In one embodiment, the third channel 23 and the second channel 22 are enclosed in the outer wall of the extrusion channel 21, and the second channel 22 is separated from the third channel 23 by a partition 25. The third channel 23 and the second channel 22 are enclosed in the outer wall of the extrusion channel 21, so that the extruded third raw material 54 and the second raw material 53 are co-coated on the outside of the first raw material 52, and the partition 25 can separate the second raw material 53 and the third raw material 54, thereby avoiding the mixing of the raw materials in the extrusion disk 2.

[0058] Specifically, the partition 25 is fixedly connected to the extrusion disc 2 . The partition 25 is formed by lathe machining the second channel 22 and the third channel 23 on the extrusion disc 2 , ie, the partition portion between the second channel 22 and the third channel 23 .

[0059] Specifically, the second raw material 53 in the second channel 22 is a silicone material with a light-blocking material such as a masterbatch added thereto, so that the second raw material 53 is opaque, and the portion outside the first raw material 52 covered by the second raw material 53 is not impenetrable by light, so that the light can only be emitted from the third raw material 54, thereby adjusting the irradiation direction of the light.

[0060] The third raw material 54 in the third channel 23 is a silicone material with a certain pigment and a certain diffusing agent added thereto, so that the third pigment presents a certain color and is transparent, so that the light emitted by the light strip presents a certain color, thereby adjusting the light color of the light strip. The added diffusing agent can make the light dispersed evenly, thereby improving the contrast effect of the light strip.

[0061] In one embodiment, a groove 24 is provided on the inner wall of the extrusion channel 21, and the groove 24 extends along the extension direction of the extrusion channel 21, and the bottom of the groove 24 is located outside the inlet end of the molding port 31. The groove 24 is provided, and the depth of the groove 24 is greater than the distance between the inlet end of the molding port 31 and the outlet of the extrusion channel 21, so the first raw material 52 located at the groove 24 in the extruded light strip product is not covered by the second raw material 53; the first raw material 52 is made of colorless and transparent silicone, so it is convenient for the staff to see the inside of the light strip through the first raw material 52 at the first groove 24.

[0062] Generally, the wick 51 of a light strip has a corresponding cutting position. During the extrusion process of the light strip, the wick 51 is extruded from the first channel 11 and the extrusion channel 21 together with the first raw material 52, and the wick 51 is covered by the first raw material 52; and the first raw material 52 at the groove 24 is not covered by the second raw material 53, which makes it easy for the staff to find the corresponding cutting position of the light strip.

[0063] In one embodiment, a support column 26 is provided in the second channel 22, and the support column 26 abuts against the outer surface of the forming plate 3. The support column 26 is provided to support the outer surface of the forming plate 3, and the outer surface of the wall forming plate 3 crushes the notch edge of the second channel 22.

[0064] Another aspect of the present invention provides a method for producing a light strip, which is performed using a light strip extrusion device and comprises the following steps:

[0065] S1, mixing the strip-shaped wick 51 with the first raw material 52, passing the wick 51 through the first channel 11, and connecting the first raw material 52 with the first channel 11;

[0066] S2, connecting the second raw material 53 to the second channel 22, and connecting the third raw material 54 to the third channel 23;

[0067] S3 , injecting the first raw material 52 , the second raw material 53 , and the third raw material 54 into the first channel 11 , the second channel 22 , and the third channel 23 simultaneously and correspondingly; and obtaining a co-extruded light strip in the molding opening 31 .

[0068] Compared with the prior art, the method for producing a light strip in an embodiment of the present invention has the following beneficial effects: by injecting the first raw material 52, the second raw material 53 and the third raw material 54 into the first channel 11, the second channel 22 and the third channel 23 simultaneously and correspondingly, a co-extruded light strip is obtained in the molding opening 31, and one-time molding and extrusion are achieved, thereby improving the production efficiency of the product and improving the quality of the product.

[0069] In one embodiment, after executing step S1, a light-blocking material is added to the second raw material 53 and stirred evenly, and a pigment of a predetermined color is added to the third raw material 54 and stirred evenly. The light-blocking material is a masterbatch, and after the masterbatch is mixed with silica gel, the silica gel becomes a certain color, but is not transparent, so that the second raw material 53 is not light-transmissive, so that light cannot penetrate, and the pigment of the predetermined color is added to the third raw material 54, so that the silica gel becomes a predetermined color, but the silica gel still remains transparent, so that the third raw material 54 can only transmit light of a predetermined color, so as to adjust the light color and irradiation direction of the light strip.

[0070] Specifically, the first raw material 52 is made of a colorless and transparent material, which can ensure that the light emitted by the wick 51 passes through the first raw material 52 as much as possible, thereby improving the light transmittance.

[0071] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A light strip extrusion device, characterized in that: include: an extrusion having a first channel for flowing a first raw material; An extrusion disc, the extrusion disc having a second channel for the circulation of a second raw material and a third channel for the circulation of a third raw material; the extrusion disc having an extrusion channel; the extrusion piece being inserted in the extrusion channel, and the first channel being in communication with the extrusion channel; A molding disk, wherein the molding disk has a molding opening; the molding disk is fixedly connected to the extrusion disk, and the molding openings are connected to the extrusion channel, the second channel and the third channel; The second channel and the third channel are both groove-shaped; the outer surface of the forming disk covers the second channel and the third channel; The second channel and the third channel are both connected to the outer wall of the extrusion channel; the inlet end of the molding port is sleeved at the outlet of the extrusion channel, and the inner wall of the molding port is spaced apart from the outer wall of the extrusion channel; The extrusion disk is provided with a first through hole communicating with the second channel, and the extrusion disk is also provided with a second through hole communicating with the third channel.

2. The light strip extrusion equipment according to claim 1, characterized in that: The extrusion disc and the molding disc are both provided with mounting holes, and the extrusion disc and the molding disc are fixedly connected together by bolts passing through the mounting holes.

3. The light strip extrusion equipment according to claim 1, characterized in that: The outer surface of the forming disk is pressed and sealed with the notch edge of the second channel and the notch edge of the third channel.

4. The light strip extrusion equipment according to claim 1, characterized in that: The third channel and the second channel are enclosed by the outer wall of the extrusion channel, and the second channel is separated from the third channel by a partition.

5. The light strip extrusion equipment according to claim 4, characterized in that: A groove is provided on the inner wall of the extrusion channel, and the groove extends along the extension direction of the extrusion channel, and the bottom of the groove is located outside the inlet end of the molding port.

6. The light strip extrusion equipment according to claim 5, characterized in that: A support column is provided in the second channel, and the support column abuts against the outer surface of the forming disk.

7. A method for producing a light strip, characterized in that: The method is carried out by using the light strip extrusion device as claimed in any one of claims 1 to 6; comprising the following steps: S1, mixing a strip-shaped wick with a first raw material, passing the wick through a first channel, and connecting the first raw material with the first channel; S2, connecting the second raw material to the second channel, and connecting the third raw material to the third channel; S3, injecting the first raw material, the second raw material, and the third raw material into the first channel, the second channel, and the third channel simultaneously and correspondingly; and obtaining a co-extruded light strip in the molding opening.

8. The production method according to claim 7, characterized in that: After executing step S1, a light-blocking material is added to the second raw material and stirred evenly, and a pigment of a predetermined color is added to the third raw material and stirred evenly.

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