Ultrasonic double-sheet detection device

Abstract

The utility model discloses an ultrasonic double-sheet detection device which comprises a support body arranged on one side of conveyed paper, an upper suspension located above the conveyed paper and a lower suspension located below the conveyed paper are arranged on the support body, and an ultrasonic transmitter is arranged on the upper suspension. The lower suspension is provided with an ultrasonic receiver matched with the ultrasonic transmitter, the support body is provided with a partition plate which is arranged between the upper suspension and the lower suspension and does not make contact with conveyed paper, and the partition plate is rotationally connected with a cam piece parallel to the conveyed paper. The distance between the farthest end of the side face of the cam piece and the axis of the cam piece is a, the distance between the nearest end of the side face of the cam piece and the axis of the cam piece is b, the distance between the axis of the cam piece and conveyed paper is c, and c is larger than b and smaller than a. The detection device has the advantages of being accurate in detection and judgment, low in error-tolerant rate, complete in overall function and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field, more specifically, it relates to an ultrasonic double sheet detection device. BACKGROUND

[0002] The printing equipment is equipped with the ultrasonic double sheet detection device on the paper feeding mechanism, the detection device is usually composed of the ultrasonic transmitter and the ultrasonic receiver that cooperate with each other, it judges whether the paper that passes is the stacked paper through the ultrasonic signal of emission and reception, to prevent the single feeding of two and above paper number paper, if the close adhesion of conveying paper, will make the ultrasonic double sheet detection device judge error, there is the misjudgment situation, accordingly, the utility model provides an ultrasonic double sheet detection device. SUMMARY

[0003] The utility model discloses a kind of ultrasonic double sheet detection devices, which is characterized by accurate detection and low fault tolerance.

[0004] To solve the above technical problems, the utility model aims at realizing as follows: a kind of ultrasonic double sheet detection device is involved in the utility model, including the bracket body being located at the side of conveying paper, bracket body is equipped with the upper suspension bracket being located above conveying paper, the lower suspension bracket being located below conveying paper, the ultrasonic transmitter is equipped on the upper suspension bracket, the ultrasonic receiver matching the ultrasonic transmitter is equipped on the lower suspension bracket, the partition plate being located between upper suspension bracket and lower suspension bracket and not being contacted with conveying paper is equipped on the bracket body, cam piece being arranged in parallel with conveying paper is rotatably connected on the partition plate;

[0005] The distance between the farthest end of the side surface of the cam piece and its axis is a, the distance between the nearest end of the side surface of the cam piece and its axis is b, the distance between the axis of the cam piece and the conveying paper is c, a>c>b.

[0006] The utility model is further provided as follows: the driving shaft is rotatably connected on the upper suspension bracket, the driving shaft is coaxially arranged with the cam piece, the lower end of the driving shaft is connected on the cam piece, and the upper end is provided with a knob for controlling rotation, and the knob is arranged above the upper suspension bracket.

[0007] The utility model is further provided as follows: the first limiting hole and the second limiting hole are arranged on the cam piece, the first limiting hole and the second limiting hole are adjacent and spaced apart by an angle of 180 degrees and arranged on the same structural circle, and the limiting protrusion is embedded in the first limiting hole or the second limiting hole.

[0008] The utility model is further provided as follows: the bracket body is provided with an avoiding hole.

[0009] The utility model further sets up: the ultrasonic wave emitter is located in the one end of conveying paper near unloading, the cam piece is located in the one end of conveying paper near loading.

[0010] To sum up, the utility model has the following beneficial effects: the ultrasonic wave double sheet detection device relates to the utility model, through adding the cam piece that can cut into the paper in the device, when double sheet conveying occurs, the cam piece can increase the distance between the two, make detection more accurate, fault tolerance is low, overall function is perfect, and practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the whole structure schematic diagram of the utility model;

[0012] Figure 2 It is the partial structure schematic diagram of the utility model;

[0013] Figure 3 It is the local structure schematic diagram of the utility model;

[0014] Figure 4 It is the structure schematic diagram for embodying the first limit hole and the second limit hole of the utility model;

[0015] Figure 5 It is the structure schematic diagram for embodying the limit protrusion of the utility model. DETAILED DESCRIPTION

[0016] In order to make those skilled in the art better understand the technical scheme of the utility model, the preferred implementation scheme of the utility model is described below in combination with specific implementation examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, and are not the limitation of the utility model patent claim. Based on the examples in the utility model, all other examples obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0017] The utility model is further illustrated below in combination with the drawings and preferred examples.

[0018] Example 1

[0019] Referring to Figures 1 to 3As shown, the ultrasonic double sheet detection device of the present embodiment comprises a support body 1 arranged on one side of the conveyed paper sheet 100, an upper suspension bracket 2 arranged above the conveyed paper sheet and a lower suspension bracket 3 arranged below the conveyed paper sheet on the support body 1, an ultrasonic transmitter 4 arranged on the upper suspension bracket 2, an ultrasonic receiver 5 arranged on the lower suspension bracket 3 and matching the ultrasonic transmitter, a partition plate 6 arranged between the upper suspension bracket and the lower suspension bracket and not in contact with the conveyed paper sheet on the support body 1, and a cam piece 7 arranged in parallel with the conveyed paper sheet and rotatably connected to the partition plate 6.

[0020] The distance between the farthest end of the side surface of the cam piece 7 and the axis thereof is a, the distance between the nearest end of the side surface of the cam piece 7 and the axis thereof is b, and the distance between the axis of the cam piece 7 and the conveyed paper sheet 100 is c, a>c>b.

[0021] Further, a driving shaft 8 is rotatably connected to the upper suspension bracket 2, the driving shaft 8 is coaxial with the cam piece 7, the lower end of the driving shaft 8 is connected to the cam piece 7, the upper end of the driving shaft 8 is provided with a knob 9 for controlling the rotation of the driving shaft 8, and the knob 9 is arranged above the upper suspension bracket 2.

[0022] In the present embodiment, the cam piece 7 has two states, one of which is a use state and the other of which is a non-use state. In the use state, the protruding end of the cam piece 7 faces the conveyed paper sheet 100, and in the non-use state, the protruding end of the cam piece 7 faces away from the conveyed paper sheet 100.

[0023] When the cam piece 7 is used, the up-down adjusting device is first adjusted so that when double sheets are conveyed, the cam piece 7 can be inserted between the two sheets to increase the distance between the two sheets, thereby amplifying the judgment signal.

[0024] The knob 9 is arranged to adjust the position state of the cam piece 7.

[0025] Embodiment 2

[0026] Referring to Figures 1 to 5 As shown, the ultrasonic double sheet detection device of the present embodiment is further provided with a first limiting hole 10 and a second limiting hole 11 arranged on the cam piece 7 and having a 180° adjacent interval and being arranged on the same structural circle, and a limiting protrusion 12 arranged in the first limiting hole or the second limiting hole on the partition plate 6.

[0027] In the present embodiment, the first limiting hole 10, the second limiting hole 11 and the limiting protrusion 12 are combined to play a position locking role after the position state of the cam piece 7 is adjusted.

[0028] Embodiment 3

[0029] Referring to Figures 1 to 5As shown in the embodiment, the ultrasonic double sheet detection device further comprises an avoiding hole 13 arranged on the bracket body 1.

[0030] In the embodiment, the avoiding hole 13 is arranged to be used as a lateral cutting of the protruding end of the cam piece 7 when the cam piece 7 is accommodated. The bracket body 1 is arranged to be closer to the conveying paper 100, so that the lateral protruding distance is smaller when the device is installed on the conveying equipment.

[0031] Embodiment 4

[0032] Referring to Figures 1 to 5 As shown in the embodiment, the ultrasonic double sheet detection device further comprises an avoiding hole 13 arranged on the bracket body 1.

[0033] In the embodiment, the avoiding hole 13 is arranged to be used as a lateral cutting of the protruding end of the cam piece 7 when the cam piece 7 is accommodated. The bracket body 1 is arranged to be closer to the conveying paper 100, so that the lateral protruding distance is smaller when the device is installed on the conveying equipment.

[0034] The ultrasonic double sheet detection device comprises a bracket body 1, an ultrasonic transmitter 4 arranged on the bracket body 1, a cam piece 7 arranged on the bracket body 1, and a conveying paper 100.

[0035] Unless otherwise specified, in the utility model, if there are terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, the orientation or positional relationship is based on the actual shown orientation or positional relationship, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing the orientation or positional relationship in the utility model are only used for example, and cannot be understood as a limitation on the patent, for ordinary skilled persons in the art, the embodiment can be combined, and the specific meaning of the above terms can be understood according to the specific circumstances.

[0036] Unless otherwise clearly indicated and limited, in the present application, if the terms "provided", "connected" and "connected" are used, they should be understood broadly, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the existing technology according to the concept of the present application shall be within the protection scope determined by the claims.

Claims

1. An ultrasonic double-sheet detection device, comprising a support body disposed on one side of the paper conveying section, an upper suspension mounted above the paper conveying section and a lower suspension mounted below the paper conveying section on the support body, wherein an ultrasonic transmitter is disposed on the upper suspension and an ultrasonic receiver matched to the ultrasonic transmitter is disposed on the lower suspension, characterized in that: The bracket body is provided with a partition plate arranged between the upper suspension and the lower suspension and not in contact with the paper conveying, and a cam piece arranged in parallel with the paper conveying is rotatably connected to the partition plate; The distance between the farthest end of the side surface of the cam piece and the axis thereof is a, the distance between the nearest end of the side surface of the cam piece and the axis thereof is b, and the distance between the axis of the cam piece and the paper conveying is c, a>c>b.

2. The ultrasonic double sheet detection apparatus according to claim 1, characterized by: A driving shaft is rotatably connected to the upper suspension, the driving shaft is coaxially arranged with the cam piece, the lower end of the driving shaft is connected to the cam piece, the upper end of the driving shaft is provided with a knob for controlling rotation, and the knob is arranged above the upper suspension.

3. The ultrasonic double sheet detection apparatus according to claim 2, characterized by: The cam piece is provided with a first limiting hole and a second limiting hole arranged on the same structural circle and adjacent to each other with an included angle of 180°, and the partition plate is provided with a limiting protrusion embedded in the first limiting hole or the second limiting hole.

4. The ultrasonic double sheet detection apparatus according to claim 3, characterized by: The bracket body is provided with an avoiding hole.

5. The ultrasonic double sheet detection apparatus according to claim 4, characterized by: The ultrasonic wave transmitter is arranged at one end of the paper conveying close to the discharging, and the cam piece is arranged at one end of the paper conveying close to the feeding.

Images