Silica gel data line extrusion device

Abstract

The silica gel data line extrusion device comprises an outer shell, an inner shell and a guide cylinder which are distributed in a nested mode, a heat preservation cavity is formed between the outer shell and the inner shell, and a silica gel cavity is formed between the inner shell and the guide cylinder; the top end of the outer shell is fixedly connected with the guide cylinder through a first end cover, the bottom end of the outer shell is fixedly connected with the inner shell through a second end cover, gaps between the inner shell and the guide cylinder are the same, an annular glue outlet channel is formed in the bottom end, and a first annular groove and a second annular groove are sequentially formed in the inner side wall of the first end cover. The inner diameter of the second annular groove is larger than that of the first annular groove, the first end cover is provided with a glue injection hole communicating with the first annular groove, the inner shell extends to the groove wall of the second annular groove and is connected with a blocking piece through an elastic piece, and the blocking piece can be directionally close to or away from the inner shell along the groove wall of the second annular groove. According to the silica gel data line extrusion device provided by the invention, the silica gel can be uniformly coated on the surface of the data line through the annular gel outlet channels with the same gaps, so that the product quality is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of data line processing, and in particular to a silicone data line extrusion device. Background Art

[0002] Silicone data cable is a data cable whose exterior is made of silicone. It has a good touch and is therefore widely used.

[0003] Since silicone has good fluidity, during the production process of silicone data cables, the weight of the silicone can easily affect the preset flow trajectory of the silicone, resulting in uneven silicone coating, which can easily affect the quality of the data cables. Summary of the invention

[0004] The embodiment of the present application provides a silicone data cable extrusion device, which can evenly coat the surface of the data cable with silicone, thereby ensuring the quality of the finished data cable product.

[0005] The embodiment of the present application provides a silicone data cable extrusion device, comprising an outer shell, an inner shell and a guide cylinder extending in a vertical direction and nested in sequence, wherein a heat preservation cavity is formed between the outer shell and the inner shell, a silicone cavity is formed between the inner shell and the guide cylinder, and the guide cylinder is used to pass the data cable;

[0006] The outer shell is fixedly connected to the guide cylinder through the first end cover at the top and is fixedly connected to the inner shell through the second end cover at the bottom. The gaps between the inner shell and the guide cylinder are the same, and an annular glue outlet channel is formed at the bottom. The inner side wall of the first end cover is provided with a first annular groove and a second annular groove from high to low. The inner diameter of the second annular groove is larger than the inner diameter of the first annular groove. The first end cover is provided with a glue injection hole connected to the first annular groove. The inner shell extends to the groove wall of the second annular groove and is connected to a blocking member through an elastic member. The blocking member can be oriented to approach or move away from the inner shell along the groove wall of the second annular groove. When glue is not injected through the glue injection hole, the blocking member blocks the connection between the glue injection hole and the silicone cavity. When glue is injected through the glue injection hole, the blocking member is pushed by the pressure of the glue injection to move in the direction close to the inner shell so that the glue injection hole is connected to the silicone cavity.

[0007] In one possible implementation, the outer surface of the guide cylinder is provided with a avoidance notch for directional movement of the blocking member, and the top fixed sleeve of the avoidance notch is provided with a connecting sleeve, and the connecting sleeve is fixedly connected to the first end cover through the outer side wall. In the radial direction of the guide cylinder, the glue injection hole is opposite to the connecting sleeve, and in the axial direction of the guide cylinder, the inner end of the blocking member is opposite to the connecting sleeve, so that when no glue is injected, the blocking member can simultaneously abut against the side wall of the second annular groove and the connecting sleeve, thereby blocking the connection between the glue injection hole and the silicone cavity.

[0008] In a possible implementation, a slope structure is provided at the bottom end of the connecting sleeve, and the slope structure is inclined in the following direction: the inner wall end of the slope structure is closer to the bottom end than the outer wall end, and the blocking member abuts against the slope structure.

[0009] In a possible implementation manner, the ramp structure is a planar structure, and the blocking member is an annular plate-shaped member.

[0010] In a possible implementation, the slope structure includes a plurality of slope planes in the same plane and special-shaped grooves distributed between two adjacent slope planes, wherein the plurality of slope planes are evenly distributed circumferentially at the end of the connecting sleeve, wherein a high-temperature resistant sealing layer is laid in the special-shaped groove, and the inner end of the blocking member cooperates with the slope plane and the special-shaped groove respectively.

[0011] In a possible implementation, the special-shaped groove is a V-shaped groove, a trapezoidal groove or an arc-shaped groove.

[0012] In a possible implementation, in the axial direction of the guide cylinder, the bottom end of the guide cylinder faces the inner side wall of the second end cover.

[0013] In a possible implementation, guide strips are evenly connected between the inner shell and the guide cylinder. The guide strips extend along the axial direction of the guide cylinder, and guide channels for silica gel to flow are formed between adjacent guide strips.

[0014] In a possible implementation, the transverse cross-section of the guide strip is trapezoidal, and the top and bottom surfaces of the guide strip are arcuate surfaces matching the inner wall of the inner shell and the outer wall of the guide cylinder, respectively connecting the inner shell and the guide cylinder.

[0015] In a possible implementation, the elastic member is an elastic sleeve, or a plurality of springs evenly distributed along the circumference of the inner shell, an elastic protective sleeve is connected between the inner shell and the blocking member, and the elastic member connects the inner shell and the blocking member inside the elastic protective sleeve.

[0016] Beneficial effect: Compared with the prior art, the silicone data cable extrusion device provided by the present application extends the inner shell and the guide cylinder coaxially vertically, and at the same time, the inner shell and the guide cylinder form an annular glue outlet channel with the same gap size at the bottom end, so that when the data cable moves downward in the guide cylinder, the silicone in the silicone cavity can be evenly coated on the surface of the data cable. Due to the vertical extension, the silicone will not be affected by its own weight during the coating process. Uniformity, in addition, the injection port is close to the top, and the silicone in the silicone cavity can flow out of the annular glue outlet channel more quickly under the dual effects of injection pressure and self-weight, and the data cable molding efficiency is improved. Higher, finally, in the interval of stopping glue injection, the insulation chamber can ensure the fluidity of the silicone in the silicone chamber to facilitate the subsequent glue injection operation. At the same time, after the injection pressure is lost, the blocking part automatically resets due to the rebound of the elastic part, which can automatically block the connection between the injection hole and the silicone chamber. Under the action of negative pressure, the silicone in the silicone chamber no longer flows out, so it is not suitable to waste raw materials. In addition, in the normal glue injection process, when the staff observes that the annular glue outlet channel does not discharge glue, they can promptly discover the glue injection problem, such as the glue injection hole is blocked or the glue injection pressure is low, and can make timely adjustments to reduce the defective rate of the product.

[0017] These and other objects, features and advantages of the present invention will be fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic cross-sectional structure diagram of the silicone data cable extrusion device of the present application is shown.

[0019] Figure 2 A partial structural schematic diagram of the silicone data cable extrusion device of the present application is shown.

[0020] Figure 3 A schematic structural diagram of the connecting sleeve in the present application is shown. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0022] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0023] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0024] refer to Figures 1 to 3 The embodiment of the present application provides a silicone data line extrusion device, comprising an outer shell 10, an inner shell 20 and a guide cylinder 30 extending in a vertical direction and nested in sequence, wherein a heat preservation chamber 201 is formed between the outer shell 10 and the inner shell 20 for providing a predetermined temperature environment, wherein a silicone chamber 202 is formed between the inner shell 20 and the guide cylinder 30 for allowing silicone to flow, wherein the guide cylinder 30 is used to pass the data line, when the data line moves from top to bottom in the guide cylinder 30, the heat preservation chamber 201 provides a temperature atmosphere to ensure that the silicone in the silicone chamber 202 remains in a good flow state, wherein the annular heat preservation chamber 201 preferably has a space gap of equal width to ensure the reliability of the temperature atmosphere, of course, as long as the temperature environment of the silicone chamber 202 is met, the width of the annular space gap may also be unequal;

[0025] The outer shell 10 is fixedly connected to the guide cylinder 30 at the top through the first end cover 11, and is fixedly connected to the inner shell 20 at the bottom through the second end cover 12. The gaps between the inner shell 20 and the guide cylinder 30 are the same, and an annular glue outlet channel 203 with equal width gaps is formed at the bottom to evenly flow out the silica gel, and then evenly coat the outer surface of the data line with silica gel, so as to ensure the silica gel coating quality of the data line. The inner side wall of the first end cover 11 is sequentially provided with a first annular groove 101 and a second annular groove 102 from high to low, and the inner diameter of the second annular groove 102 is larger than the inner diameter of the first annular groove 101, so as to limit the movement of the subsequent blocking member 22. The first end cover 11 is provided with a glue injection hole 103 connected to the first annular groove 101, which is used to inject silica gel into the silica gel cavity 202. The inner shell 20 extends to the groove wall of the second annular groove 102, and is connected to a blocking member 22 through an elastic member 21, wherein the blocking member 22 can be oriented to approach or move away from the inner shell 20 along the groove wall of the second annular groove 102, and when glue is not injected through the glue injection hole 103, the blocking member 22 blocks the connection between the glue injection hole 103 and the silicone cavity 202. When glue is injected through the glue injection hole 103, the pressure of the glue injection pushes the blocking member 22 to move toward the direction close to the inner shell 20, so that the glue injection hole 103 is connected to the silicone cavity 202, so that the silicone can be squeezed out from the annular glue outlet channel 203 through the silicone cavity 202 and evenly coated on the surface of the data cable.

[0026] Specifically, when the data cable moves from top to bottom in the guide cylinder 30, silica gel is injected from the glue injection hole 103, overcomes the resistance of the blocking member 22 and flows into the silica gel cavity 202. Since the gaps between the inner shell 20 and the guide cylinder 30 are of the same size, the silica gel in the silica gel cavity 202 flows uniformly along the ring through the annular glue outlet channel 203 to the surface of the data cable, thereby forming a uniform coating, thereby ensuring the quality of the glue coating of the data cable.

[0027] Since the outer shell 10, the inner shell 20, and the guide cylinder 30 are all extended in the vertical direction, and the annular glue outlet channel 203 is located at the bottom, during the silicone extrusion process, the weight of the silicone can promote the positive flow of the silicone, which can improve the silicone extrusion efficiency to a certain extent. At the same time, compared with the inclined extension or horizontal extension method, the weight of the silicone will not affect the uniformity of the coating of the data line;

[0028] After the injection pressure is lost, the blocking member 22 automatically resets due to the rebound of the elastic member 21, and abuts against the side wall adjacent to the first annular groove 101 and the second annular groove 102, which can automatically block the connection between the injection hole 103 and the silicone cavity 202. At the same time, under the action of negative pressure, the silicone in the silicone cavity 202 no longer flows out, so it is not suitable to waste raw materials;

[0029] In addition, during the normal glue injection process, when the staff observes that the annular glue outlet channel 203 does not discharge glue, they can promptly discover glue injection problems, such as blockage of the glue injection hole 103 or low glue injection pressure, so that they can make timely adjustments to reduce the defective rate of products.

[0030] In one embodiment, the outer surface of the guide cylinder 30 is provided with a avoidance notch 301 for directional movement of the blocking member 22, and the top fixed sleeve of the avoidance notch 301 is provided with a connecting sleeve 40, wherein the connecting sleeve 40 is fixedly connected to the first end cover 11 through the outer wall, and the radial direction of the guide cylinder 30, the injection hole 103 is opposite to the connecting sleeve 40, and the axial direction of the guide cylinder 30, the inner end of the blocking member 22 is opposite to the connecting sleeve 40, so that when no glue is injected, the blocking member 22 can simultaneously abut against the side wall of the second annular groove 102 and the connecting sleeve 40, thereby blocking the connection between the injection hole 103 and the silicone cavity 202, thereby facilitating the rapid assembly and molding of the silicone data cable extrusion device, and facilitating the blocking member 22 to achieve the connection or blocking between the injection hole 103 and the silicone cavity 202. This detachable connection method can also be quickly maintained by replacing the connecting sleeve 40 when the accuracy is reduced due to long-term use, which is convenient for maintenance and has low maintenance costs.

[0031] Further preferably, a slope structure 41 is provided at the bottom end of the connecting sleeve 40, and the inclination direction of the slope structure 41 is: the inner wall end of the slope structure 41 is closer to the bottom end relative to the outer wall end, and the blocking member 22 abuts against the slope structure 41, so that the precise blocking between the injection hole 103 and the silicone cavity 202 can be achieved through line and surface contact during the movement of the blocking member 22, and the blocking effect is good.

[0032] As a preferred embodiment, the ramp structure 41 is a planar structure, and correspondingly, the blocking member 22 is an annular plate-shaped member, such as an annular plate.

[0033] As another preferred embodiment, the slope structure 41 includes a plurality of slope planes 411 in the same plane and special-shaped grooves 401 distributed between two adjacent slope planes 411, wherein the plurality of slope planes 411 are evenly distributed along the circumferential direction at the end of the connecting sleeve 40, wherein a high-temperature resistant sealing layer (not shown in the figure) is laid in the special-shaped groove 401, and the inner end of the blocking member 22 is respectively matched with the slope plane 411 and the special-shaped groove 401, so that the contact area between the blocking member 22 and the connecting sleeve 40 is larger, and the high-temperature resistant sealing layer can also improve the sealing reliability between the connecting sleeve 40 and the blocking member 22, and the blocking effect is better. At the same time, compared with the cooperation between the aforementioned planar structure and the annular plate-like member, this structural form with the special-shaped groove 401 can make the injection hole 103 and the silicone cavity 202 have a larger conduction area when the blocking member 22 has the same opening, so that the silicone can flow into the silicone cavity 202 more quickly, thereby further improving the extrusion efficiency of the silicone.

[0034] The special-shaped groove 401 may be a V-shaped groove, a trapezoidal groove or an arc-shaped groove. The high-temperature resistant sealing layer may be a polytetrafluoroethylene layer.

[0035] In one embodiment, in the axial direction of the guide cylinder 30, the bottom end of the guide cylinder 30 is directly opposite to the inner wall of the second end cover 12, that is, it neither protrudes from the inner shell 20 nor is located on the inner side of the inner shell 20, so that the inner shell 20 can be used to limit the outflowing silicone on the outside, which can further improve the uniformity of the silicone coating on the surface of the data line. In addition, the silicone that has just flowed out will also be affected by the insulation of the insulation chamber 201 to a certain extent, rather than being directly exposed to the external environment, and can be more evenly coated on the surface of the data line.

[0036] In one embodiment, a guide strip 23 is evenly connected between the inner shell 20 and the guide cylinder 30, wherein the guide strip 23 extends along the axial direction of the guide cylinder 30, and a guide channel 204 for silicone to flow is formed between adjacent guide strips 23, so that uniform support can be formed between the inner shell 20 and the guide cylinder 30 through the guide strip 23 to ensure the coaxiality of the inner shell 20 and the guide cylinder 30, that is, the gap between the two always remains the same, thereby ensuring that the silicone flows out of the annular glue outlet channel 203 evenly and is evenly coated on the surface of the data cable.

[0037] Further preferably, the transverse cross-section of the guide strip 23 is trapezoidal, and the top and bottom surfaces of the guide strip 23 are respectively arc-shaped surfaces matching the inner wall of the inner shell 20 and the outer wall of the guide cylinder 30, and the top and bottom surfaces of the guide strip 23 are respectively connected to the inner shell 20 and the guide cylinder 30, so that the connection strength between the inner shell 20 and the guide cylinder 30 can be improved through a larger connection contact area, and the reliability of coaxiality can be ensured.

[0038] In one embodiment, the elastic member 21 is an elastic sleeve, or a plurality of springs uniformly distributed along the circumference of the inner shell 20. In addition, considering that the flowing silicone during use may fill into the elastic member 21 and affect the normal expansion and contraction of the elastic member, preferably, an elastic protective sleeve is connected between the inner shell 20 and the blocking member 22, and the elastic member 21 connects the inner shell 20 and the blocking member 22 in the elastic protective sleeve, so that the elastic member 21 can be effectively protected by the elastic protective sleeve without affecting the movement of the blocking member 22, thereby ensuring the movement sensitivity of the blocking member 22 and extending the service life of the elastic member 21.

[0039] It should be noted that the terms "first, second" in the present application are only used for descriptive purposes and do not indicate any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0040] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. Silicone data cable extrusion device, characterized in that: It comprises an outer shell, an inner shell and a guide cylinder extending in a vertical direction and nested in sequence, wherein a heat preservation cavity is formed between the outer shell and the inner shell, a silica gel cavity is formed between the inner shell and the guide cylinder, and the guide cylinder is used to pass a data line; The outer shell is fixedly connected to the guide cylinder through the first end cover at the top and is fixedly connected to the inner shell through the second end cover at the bottom. The gaps between the inner shell and the guide cylinder are the same, and an annular glue outlet channel is formed at the bottom. The inner side wall of the first end cover is provided with a first annular groove and a second annular groove from high to low. The inner diameter of the second annular groove is larger than the inner diameter of the first annular groove. The first end cover is provided with a glue injection hole connected to the first annular groove. The inner shell extends to the groove wall of the second annular groove and is connected to a blocking member through an elastic member. The blocking member can be oriented to approach or move away from the inner shell along the groove wall of the second annular groove. When glue is not injected through the glue injection hole, the blocking member blocks the connection between the glue injection hole and the silicone cavity. When glue is injected through the glue injection hole, the blocking member is pushed by the pressure of the glue injection to move in the direction close to the inner shell so that the glue injection hole is connected to the silicone cavity.

2. The silicone data cable extrusion device according to claim 1, characterized in that: The outer surface of the guide cylinder is provided with a avoidance notch for directional movement of the blocking member, and the top fixed sleeve of the avoidance notch is provided with a connecting sleeve, and the connecting sleeve is fixedly connected to the first end cover through the outer side wall. In the radial direction of the guide cylinder, the glue injection hole is opposite to the connecting sleeve, and in the axial direction of the guide cylinder, the inner end of the blocking member is opposite to the connecting sleeve, so that when no glue is injected, the blocking member can simultaneously abut against the side wall of the second annular groove and the connecting sleeve, thereby blocking the communication between the glue injection hole and the silicone cavity.

3. The silicone data cable extrusion device according to claim 2, characterized in that: A slope structure is provided at the bottom end of the connecting sleeve, and the slope structure is inclined in the following direction: the inner wall end of the slope structure is closer to the bottom end than the outer wall end, and the blocking member abuts against the slope structure.

4. The silicone data cable extrusion device according to claim 3, characterized in that: The ramp structure is a planar structure, and the blocking member is an annular plate-shaped member.

5. The silicone data cable extrusion device according to claim 3, characterized in that: The slope structure includes a plurality of slope planes in the same plane and special-shaped grooves distributed between two adjacent slope planes, wherein the plurality of slope planes are evenly distributed along the circumferential direction at the end of the connecting sleeve, wherein a high-temperature resistant sealing layer is laid in the special-shaped groove, and the inner end of the blocking member cooperates with the slope plane and the special-shaped groove respectively.

6. The silicone data cable extrusion device according to claim 5, characterized in that: The special-shaped groove is a V-shaped groove, a trapezoidal groove or an arc groove.

7. The silicone data cable extrusion device according to claim 1, characterized in that: In the axial direction of the guide cylinder, the bottom end of the guide cylinder faces the inner side wall of the second end cover.

8. The silicone data cable extrusion device according to claim 1, characterized in that: Guide strips are evenly connected between the inner shell and the guide cylinder. The guide strips extend along the axial direction of the guide cylinder, and guide channels for silica gel to flow are formed between adjacent guide strips.

9. The silicone data cable extrusion device according to claim 8, characterized in that: The transverse cross section of the guide strip is trapezoidal, and the top and bottom surfaces of the guide strip are arc-shaped surfaces matching the inner wall of the inner shell and the outer wall of the guide cylinder, respectively, and connecting the inner shell and the guide cylinder, respectively.

10. The silicone data cable extrusion device according to claim 1, characterized in that: The elastic member is an elastic sleeve, or a plurality of springs evenly distributed along the circumference of the inner shell. An elastic protective sleeve is connected between the inner shell and the blocking member. The elastic member connects the inner shell and the blocking member in the elastic protective sleeve.

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