Photoelectric switch fixing structure for tobacco shred blending distribution line main scale metering tube

Abstract

The optoelectronic switch fixing structure comprises a main scale metering tube shell, a vertical supporting rod is vertically and fixedly connected to the side portion of the main scale metering tube shell, a plurality of optoelectronic switches are vertically and evenly distributed on the vertical supporting rod, and each optoelectronic switch is fixedly connected with the vertical supporting rod through a fixing block. The photoelectric switch is fixedly connected with the fixing block through a limiting connecting structure, and the fixing block is fixedly connected with the vertical supporting rod. According to the utility model, the fixing block of the photoelectric switch is improved, so that the photoelectric switch and the fixing block are fixed through a screw when the photoelectric switch is installed, and the photoelectric switch is limited through the limiting groove and the boss on the photoelectric switch, thereby preventing the photoelectric switch from axially moving in use; the situation that the receiving end is prone to signal error feedback due to frequent deviation of the correlation angle of the photoelectric switch is avoided, and the reliability and the stability of the detection device are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metering tubes, and in particular relates to a photoelectric switch fixing structure for a main scale metering tube of a blade blending line. Background Art

[0002] The main scale metering tube of the leaf shred blending line uses a photoelectric switch group to detect the flow rate, which is relatively stable. However, abnormal fluctuations still occur in the actual production process, affecting the accuracy of subsequent blending and flavoring. After looking for the cause, it was found that the cause of this problem is: the opposing photoelectric switches on the opposite sides of the metering tube detect the material level in the metering tube through the opposing signals of the transmitting end and the receiving end of the photoelectric switch. In the prior art, when the photoelectric switch is fixed, support rods are fixed on both sides of the metering tube, and the photoelectric switch is connected to the support rods through a fixing block, wherein the photoelectric switch is fixed to the fixing block by only one screw. This structure easily causes the photoelectric switch to move axially, causing the opposing angle of the photoelectric switch to frequently shift, which makes it easy for the receiving end to have signal error feedback. Therefore, it is necessary to propose improvements. Utility Model Content

[0003] The technical problem solved by the utility model is as follows: a photoelectric switch fixing structure for the metering tube of the main scale of a blade blending line is provided. The utility model aims to solve the problems arising in the use of the photoelectric switch of the metering tube by improving the fixing block of the photoelectric switch so that the photoelectric switch and the fixing block are limitedly connected to prevent axial movement of the photoelectric switch during use, and avoid frequent deviations in the shooting angle of the photoelectric switch, which may cause erroneous signal feedback at the receiving end.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The photoelectric switch fixing structure for the main scale metering tube of the leaf silk blending line includes a main scale metering tube shell, a vertical support rod is vertically fixedly connected to the side of the main scale metering tube shell, and a plurality of photoelectric switches are vertically evenly distributed on the vertical support rod, each of the photoelectric switches is fixedly connected to the vertical support rod through a fixing block, the photoelectric switch is fixedly connected to the fixing block through a limiting connection structure, and the fixing block is fixedly connected to the vertical support rod.

[0006] To further define the above scheme, the limiting connection structure between the photoelectric switch and the fixed block is as follows: a boss is provided on one side surface of the photoelectric switch, and a limiting groove is provided on the corresponding fixed surface of the fixed block. During installation, the boss of the photoelectric switch is adapted to be inserted into the limiting groove of the fixed block, a fixed connection hole is formed on the photoelectric switch, and a connecting threaded hole is provided on the fixing block. The fixing screw passes through the fixed connection hole and is tightened with the connecting threaded hole to realize the fixed connection between the photoelectric switch and the fixed block.

[0007] As a further limitation of the above solution, the fixing block is connected to the vertical support rod via an adjustable connection structure.

[0008] To further define the above scheme, the adjustment connection structure between the fixed block and the vertical support rod is as follows: a T-shaped groove is vertically provided on the side of the vertical support rod, a T-shaped slider can be slidably adapted in the T-shaped groove, an internal threaded connecting hole is provided on the T-shaped slider, a through hole is provided on the fixed block, and a tightening screw passes through the through hole on the fixed block and is screwed and tightened with the internal threaded connecting hole on the T-shaped slider to achieve a fixed connection between the fixed block, the T-shaped slider and the vertical support rod.

[0009] As a further limitation of the above solution, a countersunk groove is provided at the outer end of the through hole.

[0010] The advantages of this utility model compared with the prior art:

[0011] This scheme aims at the problems arising in the use of the metering tube photoelectric switch. By improving the fixing block of the photoelectric switch, the photoelectric switch is not only fixed to the fixing block by screws during installation, but also limited by the limit groove and the boss on the photoelectric switch itself, thereby preventing the photoelectric switch from axial movement during use, avoiding frequent deviation of the photoelectric switch's shooting angle and causing the receiving end to easily have erroneous signal feedback, thereby greatly improving the reliability and stability of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the connection between the photoelectric switch, the fixing block and the vertical support rod in the utility model;

[0014] Figure 3 For this utility model Figure 2 A schematic diagram of the connection between the fixed block and the vertical support rod shown in the AA direction;

[0015] Figure 4 For this utility model Figure 2 The connection diagram of the photoelectric switch and the fixing block shown in the middle BB direction;

[0016] Figure 5 It is a three-dimensional structural schematic diagram of the fixing block in the utility model. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0019] See also Figure 1-5 , describe the embodiments of the present utility model in detail.

[0020] Embodiment: Photoelectric switch fixing structure for main scale metering tube of leaf blending line, see Figure 1 , Figure 2 As shown, it includes a main scale metering tube housing 1, and a vertical support rod 2 made of aluminum profile is vertically fixedly connected to the side of the main scale metering tube housing 1, and a plurality of photoelectric switches 3 are vertically evenly distributed on the vertical support rod 2, each of the photoelectric switches 3 is fixedly connected to the vertical support rod 2 through a fixed block 4, and the photoelectric switch 3 is fixedly connected to the fixed block 4 through a limiting connection structure, and the fixed block 4 is fixedly connected to the vertical support rod 2.

[0021] In the above embodiment, in order to solve the problems arising in the use of the metering tube photoelectric switch, the fixing block of the photoelectric switch is improved so that the photoelectric switch is not only fixed to the fixing block by screws during installation, but also limited by a limiting connection structure, thereby preventing the photoelectric switch from axial movement during use, avoiding frequent deviations in the shooting angle of the photoelectric switch, and causing the receiving end to easily have erroneous signal feedback, thereby greatly improving the reliability and stability of the detection device.

[0022] In a specific implementation: see Figure 4 , Figure 5As shown, the limiting connection structure between the photoelectric switch 3 and the fixed block 4 is as follows: a boss 3-2 is provided on one side surface of the photoelectric switch 3, and a limiting groove 4-3 is provided on the corresponding fixed surface of the fixed block 4. When installed, the boss 3-2 of the photoelectric switch 3 is adapted to be inserted into the limiting groove 4-3 of the fixed block 4, a fixed connection hole 3-1 is formed on the photoelectric switch 3, and a connecting threaded hole 4-4 is provided on the fixed block 4. The fixing screw 6 passes through the fixed connection hole 3-1 and the connecting threaded hole 4-4 to be tightened to realize the fixed connection between the photoelectric switch 3 and the fixed block 4.

[0023] In the above structure, the photoelectric switch is not only fixed to the fixed block by screws during installation, but also limited by the limit groove and the boss on the photoelectric switch itself, thereby preventing the photoelectric switch from axial movement during use without changing the structure of the photoelectric switch. The structure is simple and easy to manufacture.

[0024] In a specific implementation: see Figure 1 As shown, the fixing block 4 is connected to the vertical support rod 2 via an adjustable connection structure.

[0025] Through the above structure, the fixing block 4 can be fixed on the vertical support rod 2 in an adjustable up-and-down manner, which is convenient for flexible detection of the material in the metering tube.

[0026] In a specific implementation: see Figure 3 , Figure 5 As shown, the adjustment connection structure of the fixing block 4 and the vertical support rod 2 is as follows: a T-shaped slot 2-1 is vertically provided on the side of the vertical support rod 2, a T-shaped slider 5 can be slidably adapted in the T-shaped slot 2-1, an internal thread connection hole 5-1 is provided on the T-shaped slider 5, a through hole 4-1 is provided on the fixing block 4, and a tightening screw 7 passes through the through hole 4-1 on the fixing block 4 and is screwed and tightened with the internal thread connection hole 5-1 on the T-shaped slider 5 to realize the fixed connection between the fixing block 4 and the T-shaped slider 5 and the vertical support rod 2. A countersunk groove 4-2 is provided at the outer end of the through hole 4-1.

[0027] Through the above structure, by loosening the tightening screw 7, the T-shaped slider 5 can drive the fixing block 4 and the photoelectric switch 3 to move up and down on the vertical support rod 2. After the position is adjusted, the screw is tightened to fix it.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A photoelectric switch fixing structure for a main weighing tube of a leaf blending line, comprising a main weighing tube housing (1), a vertical support rod (2) vertically fixedly connected to the side of the main weighing tube housing (1), and a plurality of photoelectric switches (3) vertically and evenly distributed on the vertical support rod (2), characterized in that: Each of the photoelectric switches (3) is fixedly connected to the vertical support rod (2) via a fixing block (4); the photoelectric switch (3) is fixedly connected to the fixing block (4) via a limiting connection structure; and the fixing block (4) is fixedly connected to the vertical support rod (2).

2. The photoelectric switch fixing structure for the main scale metering tube of the shredded leaf blending line according to claim 1 is characterized by: The limiting connection structure between the photoelectric switch (3) and the fixed block (4) is as follows: a boss (3-2) is provided on one side surface of the photoelectric switch (3), and a limiting groove (4-3) is provided on the corresponding fixed surface of the fixed block (4); during installation, the boss (3-2) of the photoelectric switch (3) is adapted to be inserted into the limiting groove (4-3) of the fixed block (4); a fixing connection hole (3-1) is formed on the photoelectric switch (3), and a connecting threaded hole (4-4) is provided on the fixed block (4); a fixing screw (6) passes through the fixing connection hole (3-1) and is tightened with the connecting threaded hole (4-4) to realize the fixed connection between the photoelectric switch (3) and the fixed block (4).

3. The photoelectric switch fixing structure for the main scale metering tube of the shredded leaf blending line according to claim 1 is characterized by: The fixing block (4) is connected to the vertical support rod (2) via an adjustable connection structure.

4. The photoelectric switch fixing structure for the main scale metering tube of the shredded leaf blending line according to claim 3 is characterized by: The adjustable connection structure of the fixed block (4) and the vertical support rod (2) is as follows: a T-shaped slide groove (2-1) is vertically provided on the side of the vertical support rod (2); a T-shaped slider (5) is slidably adapted in the T-shaped slide groove (2-1); an internal thread connection hole (5-1) is provided on the T-shaped slider (5); a through hole (4-1) is provided on the fixed block (4); a tightening screw (7) passes through the through hole (4-1) on the fixed block (4) and is screwed and tightened with the internal thread connection hole (5-1) on the T-shaped slider (5) to realize the fixed connection between the fixed block (4), the T-shaped slider (5) and the vertical support rod (2).

5. The photoelectric switch fixing structure for the main scale metering tube of the shredded leaf blending line according to claim 4 is characterized by: The outer end of the through hole (4-1) is provided with a countersunk groove (4-2).

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