Glue-pouring-free microminiature separated diffuse reflection photoelectric switch inductive head
Through the design without glue filling and the method of fixing the fiber optic wires and wires, the production process is simplified and the induction distance is improved, and the problems of high material costs, short detection distance and environmental pollution in the existing technology are solved, and the problems of high material costs, short detection distance and environmentally friendly pollution are achieved. Lower production and use costs.
Patent Information
- Application Number
- CN202420800788.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The existing separated diffuse reflective photoelectric switch induction head materials are high, the detection distance is short, the production process is complex, and the production cycle is long. There are environmental pollution problems, especially in low-temperature environments.
Using a glue-free design, the fiber optic wire 2 and wire 3 are stuck by fixed clamping columns 18, simplifying the production process, reducing material costs and production cycles, and improving the utilization rate and induction distance of light through the biconvex lens structure.
A longer inspection distance is achieved, the product material cost and production cycle are reduced, environmental pollution problems are avoided, and the overall production cost and use cost are greatly reduced.
Smart Images
Figure CN222464589U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a small-sized separated diffuse reflection photoelectric switch, in particular to an improvement of a micro-sized separated diffuse reflection photoelectric switch sensing head which does not require glue injection. Background Art
[0002] Diffuse reflection photoelectric switch uses the reflection of light from the detected object to detect the existence of the object. The detected object can be any reflective object. It is widely used in the field of automation for detecting the existence of objects, positioning, counting and other different scenarios. Since the separated diffuse reflection photoelectric switch has a smaller sensor head and a smaller switch body, it has higher flexibility and can be used in more complex and narrow spaces.
[0003] The separate diffuse reflection photoelectric switch sensor heads on the market currently have high material costs, short detection distances, complex manufacturing processes, and long production cycles. Since the several receiving optical fibers surrounding the light-emitting tube are impregnated with resin glue and then dried and polished many times, dust and sewage will be generated, which involves environmental pollution issues. In winter, the temperature is low and the glue does not dry, so the workshop has to be heated, resulting in a long production cycle, which limits production output, increases production costs and difficulty, and also brings about environmental pollution issues. Utility Model Content
[0004] The purpose of the utility model is to overcome the defects and shortcomings of the prior art and to provide a miniature separated diffuse reflection photoelectric switch sensor head that does not require glue filling. It has the advantages of long sensing distance, pollution-free production, low material cost, short production cycle, and production is not affected by weather temperature, which greatly reduces product cost and shortens production cycle as a whole.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: it comprises a sensing head 1, an optical fiber line 2, an electric wire 3, and an outlet sheath 4. The sensing head 1 comprises a tube body 11, a light guide 1 12, a light guide 2 13, a connecting piece 14, an assembly part 15, a convex lens 16, a light emitting tube 17, and a fixing column 18. An assembly part 15 is arranged inside the light guide part 12, a light guide part 2 13 is arranged on the right side of the light guide part 12, a through hole 131 is arranged at the lower part of the light guide part 2 13, a connecting part 14 is arranged on the right side of the light guide part 2 13, an optical fiber through hole 141 is arranged at the upper part of the connecting part 14, an electric wire through hole 142 is arranged at the lower part of the connecting part 14, a radial fixing hole 143 is arranged on the upper part of the connecting part 14, and the fixing hole 143 is arranged between the optical fiber through hole 141 and the electric wire through hole 142, a left convex lens 161 is arranged on the left side of the assembly part 15, a right convex lens 162 is arranged on the right side of the left convex lens 161, and a light-emitting tube 17 is arranged on the right side of the right convex lens 162, the optical fiber line 2 is inserted into the optical fiber through hole 141 from the outlet sheath 4, the electric wire 3 passes through the electric wire through hole 142 and the through hole 131 from the outlet sheath 4 and is electrically connected to the light-emitting tube 17, and a fixing column 18 is arranged in the fixing hole 143.
[0006] Furthermore, the fixed clamping column 18 is used to clamp the optical fiber line 2 and the electric wire 3, which is convenient for installation. Compared with the previous complex production process of using several small optical fibers to surround the light-emitting tube, then dipping and curing with resin glue, and then grinding and polishing for many times, the material cost is greatly reduced and the production cycle is shortened, and the production is not affected by weather temperature.
[0007] Furthermore, one end of the light guide 13 is an eccentric hollow cone 132, a small hole 131 for the power line to pass through is arranged at the lower part of the cone, and the other end is a small cylinder 133. Except for the two end faces for light in and out at both ends, the other inner and outer surfaces are coated with optical films to increase the light passing rate. The light guide 13 adopts an eccentric cone to provide space for setting wires.
[0008] Furthermore, two convex lenses are arranged on the left side of the light emitting tube. The right convex lens 162 close to the light emitting tube 17 fully receives the light emitted by the light emitting tube 17 and reduces the divergence of the light beam. The left convex lens 161 is used to adjust the light angle to form parallel light or focal light, thereby improving the utilization rate of light and increasing the sensing distance, solving the defect of using only one convex lens before: if the convex lens is close to the light emitting tube, the light utilization rate is high, but it is too difficult to adjust the light angle, and the performance requirements of the convex lens are extremely high; if the convex lens is far away from the light emitting tube, it is easy to adjust the light angle, but the light utilization rate is too low.
[0009] Furthermore, the light guide 13 is connected to the optical fiber 2 through the optical fiber through hole 141 to conduct the light path. The electric wire 3 passes through the outlet sheath 4, the electric wire through hole 142, and the through hole 131, and is connected to the light emitting tube 17 by welding to achieve the conduction of the circuit. One end of the fixed card column 18 is a conical structure to facilitate the insertion of the fixed card column.
[0010] After adopting the above technical scheme, the beneficial effects of the utility model are: it has a longer detection distance, reduces product material costs, greatly saves labor demand and shortens production cycle, avoids environmental pollution problems, and greatly reduces overall production costs and use costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0012] Figure 1 It is a schematic diagram of the appearance of the utility model;
[0013] Figure 2 It is a structural schematic diagram of the utility model;
[0014] Figure 3 It is a schematic diagram of the structure of the fixed clamping column 18 in the present invention.
[0015] Explanation of the accompanying drawings: It includes a sensing head 1, an optical fiber line 2, an electric wire 3, and an outlet sheath 4. The sensing head part includes a tube body 11, a light guide part 1 12, a light guide part 2 13, a connecting part 14, an assembly part 15, a convex lens 16, a light-emitting tube 17, a fixing column 18, an optical fiber through hole 141, an electric wire through hole 142, a fixing hole 143, a through hole 131, and an inner hollow cone 132. DETAILED DESCRIPTION
[0016] Reference Figure 1~2The technical solution adopted in this specific embodiment is: it includes a sensing head 1, an optical fiber line 2, an electric wire 3, and an outlet sheath 4. The sensing head 1 includes a tube body 11, a light guide 12, a light guide 2 13, a connecting piece 14, an assembly part 15, a convex lens 16, a light emitting tube 17, and a fixed clamping column 18. The light guide 1 12 is provided with an assembly part 15 inside, the light guide 1 12 is provided with a light guide 2 13 on the right side, the light guide 2 13 is provided with a through hole 131 at the lower part, the light guide 2 13 is provided with a connecting piece 14 on the right side, the optical fiber through hole 141 is provided on the upper part of the connecting piece 14, the electric wire through hole 142 is provided on the lower part of the connecting piece 14, and a radial fixing hole (143) is provided on the upper part of the connecting piece 14, and the fixing hole 143 is provided between the optical fiber through hole 141 and the electric wire through hole 1 42, a left convex lens 161 is arranged on the left side of the assembly part 15, a right convex lens 162 is arranged on the right side of the left convex lens 161, and a light-emitting tube 17 is arranged on the right side of the right convex lens 162. The optical fiber 2 is inserted into the optical fiber through hole 141 from the outlet sheath 4, and the electric wire 3 is electrically connected to the light-emitting tube 17 through the electric wire through hole 142 and the through hole 131 from the outlet sheath 4. A fixing clamp 18 is arranged in the fixing hole 143 to clamp the optical fiber and the electric wire for easy installation. Compared with the previous complex production process of surrounding the light-emitting tube with several small optical fibers, impregnating and drying with resin glue, and then grinding and polishing for many times, the material cost is greatly reduced and the production cycle is shortened, and the production is not affected by the weather temperature.
[0017] Furthermore, one end of the light guide 13 is an eccentric hollow cone 132, a small hole 131 for the power line to pass through is arranged at the lower part of the cone, and the other end is a small cylinder 133. Except for the two end faces for light in and out at both ends, the other inner and outer surfaces are coated with optical films to increase the light passing rate. The light guide 13 adopts an eccentric cone to provide space for setting wires.
[0018] Furthermore, two convex lenses are arranged on the left side of the light emitting tube. The right convex lens 162 close to the light emitting tube 17 fully receives the light emitted by the light emitting tube 17 and reduces the divergence of the light beam. The left convex lens 161 is used to adjust the light angle to form parallel light or focal light, thereby improving the utilization rate of light and increasing the sensing distance, solving the defect of using only one convex lens before: if the convex lens is close to the light emitting tube, the light utilization rate is high, but it is too difficult to adjust the light angle, and the performance requirements of the convex lens are extremely high; if the convex lens is far away from the light emitting tube, it is easy to adjust the light angle, but the light utilization rate is too low.
[0019] Furthermore, the light guide 13 is connected to the optical fiber 2 through the optical fiber through hole 141 to conduct the light path. The electric wire 3 passes through the outlet sheath 4, the electric wire through hole 142, and the through hole 131, and is connected to the light emitting tube 17 by welding to achieve the conduction of the circuit. One end of the fixed clamp 18 is a conical structure, and the outer skin of the optical fiber 2 and the electric wire 3 is clamped and fixed by inserting the fixed clamp 18, thereby greatly simplifying the production process and shortening the production cycle.
[0020] After adopting the above technical scheme, the beneficial effects of the utility model are: it has a longer detection distance, reduces product material costs, greatly saves labor demand and shortens production cycle, avoids environmental pollution problems, and greatly reduces overall production costs and use costs.
[0021] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.
Claims
1. A miniature separated diffuse reflection photoelectric switch sensor head without glue filling, characterized by: The invention comprises a sensing head (1), an optical fiber line (2), an electric wire (3), and an outlet sheath (4). The sensing head (1) comprises a tube body (11), a light guide part 1 (12), a light guide part 2 (13), a connecting part (14), an assembly part (15), a convex lens (16), a light emitting tube (17), and a fixing column (18). The light guide part 1 (12) is provided with an assembly part (15) inside, the light guide part 1 (12) is provided with a light guide part 2 (13) on the right side, a through hole (131) is provided at the lower part of the light guide part 2 (13), a connecting part (14) is provided at the right side of the light guide part 2 (13), an optical fiber through hole (141) is provided at the upper part of the connecting part (14), an electric wire through hole (142) is provided at the lower part of the connecting part (14), and a radial fixing hole (143) is provided on the upper part of the connecting part (14), and the fixing hole (143) is provided on the optical fiber through hole (141). ) and the wire through hole (142), a convex lens (16) is arranged on the left side inside the assembly part (15), a right convex lens (162) is arranged on the right side of the left convex lens (161), a light-emitting tube (17) is arranged on the right side of the right convex lens (162), the optical fiber (2) is inserted into the optical fiber through hole (141) from the outlet sheath (4), the electric wire (3) passes through the wire through hole (142) and the through hole (131) from the outlet sheath (4) to be electrically connected to the light-emitting tube (17), and a fixing post (18) is arranged in the fixing hole (143).
2. According to claim 1, a miniature separated diffuse reflection photoelectric switch sensor head that does not require glue filling is characterized by: One end of the second light guide member (13) is an eccentric hollow cone (132), the lower part of the cone is provided with a through hole (131) for the power supply line to pass through, and the other end is a small cylinder (133).
3. According to claim 1, a miniature separated diffuse reflection photoelectric switch sensor head that does not require glue filling is characterized by: Two convex lenses (16) are arranged on the left side of the light-emitting tube.
4. According to claim 1, a miniature separated diffuse reflection photoelectric switch sensor head that does not require glue filling is characterized by: The second light guide member (13) is butt-jointed with the optical fiber line (2) via the optical fiber through hole (141).
5. According to claim 1, a miniature separated diffuse reflection photoelectric switch sensor head that does not require glue filling is characterized by: The electric wire (3) passes through the outlet wire sheath (4), the electric wire through hole (142), and the through hole (131), and is connected to the light-emitting tube (17) by welding.
6. The miniature separated diffuse reflection photoelectric switch sensor head without glue filling according to claim 1 is characterized in that: One end of the fixed clamping column (18) is a conical structure.