A non-contact cable core metering device

Abstract

The present application relates to the technical field of cable meter, and specifically discloses a non-contact cable core metering device, which includes a main controller, camera one, camera two and an inkjet printer. The inkjet printer is used to perform non-contact metering of cables, and the error segment is adjusted by a scale ruler and a linear motion module to achieve more accurate metering of copper, aluminum and other cables.

Description

Technical Field

[0001] The invention relates to the technical field of cable meter counters, and in particular to a contactless cable core meter counter. Background Art

[0002] In the fiercely competitive wire and cable industry, the high prices of copper and aluminum make cable cost control particularly important. Cables are delivered by length, so length errors directly lead to increased costs. The accumulated cost waste is staggering. Not only that, in actual delivery, negative deviations are generally not allowed for fixed-length products, so the accuracy of meter measurement is both a source of efficiency and a source of disputes.

[0003] The cable meter currently used in the market is usually a contact type. A Chinese patent with the authorization announcement number CN211717333U discloses a high-precision meter device, which includes a support plate (1), a meter wheel (2), a cable pressure wheel (3), and a linear guide rail (4). The principle is that the cable is pressed by two pressure wheels. When the cable moves forward horizontally, the friction between the cable and the pressure wheel drives the pressure wheel to rotate. In theory, when there is no slip between the cable and the pressure wheel, the circumference of the pressure wheel is the length of the cable. The pressure wheel is processed to have a circumference of 1 meter. Every time the pressure wheel rotates one circle, the counter increases by 1. In this way, the meter is counted. However, in the actual cable production process, there is often a certain amount of slippage between the cable and the pressure wheel, especially in the process of large acceleration and deceleration such as starting the machine and emergency stopping, there will be a small amount of slippage, resulting in inaccurate meter counting. In actual use, there is usually an error of more than 1 meter per kilometer of meter counting, causing unnecessary losses.

[0004] At the same time, the inkjet system of the inkjet gun in the existing metering system mostly uses quick-drying and pigment-type inks. The pigments are easy to settle and dry after being placed, so the nozzles and pipes are more prone to clogging, and the inkjet gun needs to be frequently disassembled, cleaned and maintained, and the labor cost of maintenance is high. Summary of the invention

[0005] The purpose of the present invention is to provide a non-contact cable core metering device to solve the problem of inaccurate metering of a metering system in a cable production process.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An inkjet printer and a camera 1 are horizontally arranged above the cable moving in the horizontal direction. The camera 1 and the inkjet printer are both facing the cable surface. The horizontal distance between the camera 1 and the inkjet printer is L1. The camera 1 and the inkjet printer are electrically connected to the main controller. The main controller measures the number of times the inkjet printer sprays N times, and the cable length in meters is L1*(N-1); it also includes two paint tanks containing different colors of paint, and the inkjet printer selectively connects the paint tanks to spray paint; the inkjet printer is connected to a linear motion module through a bracket, the linear motion module is electrically connected to the main controller, and the linear motion module can drive the inkjet printer to move horizontally.

[0008] The principles of this solution are:

[0009] The inkjet printer is used to mark the starting point of the cable. After the cable moves forward for a distance of L1, the camera recognizes the mark and the inkjet printer sprays the cable again. The main controller measures the number of spraying times. As the cable continues to move forward, the inkjet printer is used to continuously segment the cable so that the cable is divided into multiple lengths at equal distances. The total length of the released cable can be obtained by a simple calculation.

[0010] The beneficial effects of this program are:

[0011] The cables are marked by inkjet printers and the cable length is measured by non-contact segment counting method, avoiding errors caused by pressure wheel slippage in contact measurement.

[0012] Using different colored pigments to distinguish the error section and precision section of the cable makes it easier for the camera to identify it accurately. It also helps the staff to evaluate the overall machine operation status when verifying the deliverables, so that they can debug and maintain the equipment in a timely manner.

[0013] Furthermore, with camera one as the starting point, camera two is provided at a horizontal distance L2 along the direction of cable travel, and a scale ruler parallel to the cable is provided below camera one and camera two, and the origin of the scale ruler is opposite to camera one; since the distance between camera two and camera one is L2, L2 is the same as L1, when camera one recognizes the latter code, if camera two recognizes that the former code is exactly located at the scale of L2 length on the scale ruler, there is no error; if the former code deviates from the scale at L2, the linear motion module adjusts the position of the inkjet printer to compensate for the error.

[0014] Furthermore, the inkjet printer includes a venturi tube, an air pump, and a pigment tank. The air inlet end of the venturi tube is connected to the air pump, the air pump is electrically connected to the main controller, and the inlet of the venturi tube adsorption chamber is connected to the pigment tank. The venturi tube structure is used for inkjet printing. Since the venturi tube does not have air return, the problem of material blockage is avoided.

[0015] Furthermore, a first piston is laterally connected to the bracket, and the first piston is a double-piston structure. The first piston is slidably connected to the first piston cylinder outside the first piston, and the two ends of the first piston cylinder are connected to the second piston cylinder through an air pipe. The second piston cylinder is horizontally arranged, and a one-way valve 1 is arranged between the second piston cylinder and the air pipe. The one-way valve 1 only allows gas to enter the second piston cylinder from the air pipe. Two one-way valves are arranged at both ends of the first piston cylinder. The two one-way valves only allow gas to enter the first piston cylinder from the outside. The one-way valve 2 is used to supplement the gas in the first piston cylinder, so that when there is an error, the linear motion module drives the first piston to move and drives the second piston to move through the discharged gas.

[0016] The pigment groove is located on the top surface of the second piston cylinder. The closed cavity formed by the second piston cylinder and the second piston is provided with an electromagnet and a pressure sensor. The electromagnet is located at the bottom end of the second piston cylinder. The pressure sensor is connected to the inner wall of the piston cylinder and is electrically connected to the main controller. The second piston cylinder is slidably connected with the second piston. The end of the second piston close to the electromagnet is provided with a magnet 1. The second piston has a pigment channel vertically penetrating the second piston. The bottom side wall of the second piston cylinder has a discharge port. The end surface of the second piston close to the electromagnet and the top of the second piston are penetrated by an airway. The upper side wall of the second piston cylinder has a through hole that can be connected to the airway. The resetting of the second piston is controlled by the on and off of the electromagnet, and the excess gas in the closed cavity is discharged through the airway.

[0017] Furthermore, the paint tank is divided into two cavities in the horizontal direction. The two cavities are filled with paints of different colors. There is an opening at the bottom of the paint tank. A vertical channel is opened in the second piston. Two colors are used to distinguish and mark the cable segments that cause errors, which is more conducive to camera recognition and error compensation.

[0018] Furthermore, the electromagnet is in a horizontal annular shape, which facilitates the gas in the trachea to flow into the second piston cylinder, while ensuring uniform distribution of the force on the right end of the second piston, and avoiding the whole electromagnet blocking the flow of the trachea and the displacement of the second piston.

[0019] Furthermore, the pigment tank is a sandwich shell, the sandwich of the pigment tank is filled with warm water, the upper end of the pigment tank is provided with a heating conductor that can be inserted into the sandwich, and the outside of the heating conductor is electrically connected to a solar panel. The sandwich ensures that the temperature of the pigment is always between 25 and 30 degrees Celsius to prevent the pigment from sticking, and the solar panel is used to provide power for the heating conductor and save electricity.

[0020] Furthermore, a baffle is provided below the cable, and the baffle is provided with a concave surface for receiving the inkjet gun paint. The concave surface of the baffle is used to prevent the inkjet gun paint from splashing onto the ground.

[0021] Furthermore, a stirring roller is provided in the pigment tank and extends vertically to the bottom of the pigment tank, and the upper end of the stirring roller is keyed to the output shaft of the motor. The stirring roller is used to stir the pigment to prevent the pigment from settling and stratifying after being placed for a long time.

[0022] Furthermore, the negative pressure chamber of the venturi tube is higher than the horizontal plane of the pigment tank, so as to prevent the pigment from flowing out directly along the negative pressure chamber during the non-working time of the inkjet printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of an embodiment of the present invention.

[0024] Figure 2 Schematic diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The figure marks in the drawings of the specification include: cable 1, inkjet printer 2, camera one 3, main controller 4, camera two 5, scale ruler 6, linear motion module 7, venturi tube 8, air pump 9, pigment tank 10, opening 101, bracket 11, first piston 12, first piston cylinder 121, air pipe 13, second piston 14, second piston cylinder 141, one-way valve one 15, one-way valve two 16, pigment channel 171, air channel 172, through hole 173, electromagnet 181, magnet one 182, discharge port 19.

[0027] The embodiment is basically as shown in the attached Figure 1 To Attachment Figure 2 As shown:

[0028] Camera 2 5 is located on the left side of camera 1 3, and camera 1 3 is located on the left side of inkjet printer 2, which is used as a direction reference;

[0029] The specific implementation process is as follows:

[0030] like Figure 1As shown, a non-contact cable 1 cable core meter counting device is provided above the cable 1 moving in the horizontal direction, and a printer 2, a camera 1 3, and a camera 2 5 are arranged from left to right in sequence. The camera 1 3 is located 1 meter away from the left side of the printer 2, and the camera 2 5 is located 1 meter away from the left side of the camera 1 3. The camera 1 3, the camera 2 5, and the printer 2 are all facing the surface of the cable 1. A scale ruler 6 is arranged outside the cable 1 in parallel. The zero mark of the scale ruler 6 faces the camera 1 3, and the 1 meter mark of the scale ruler 6 faces the camera 2 5. The camera 1 3, the camera 2 5, and the printer 2 are all electrically connected to the main controller 4. When counting meters, the printer 2 sprays the mark 1 on the cable 1, and the cable 1 moves to the left. When the camera 1 3 detects the mark 1, the printer 2 sprays the cable 1 again, and the code is recorded as the mark 2. The main controller 4 records the number of times of spraying as two times. At this time, the meter count is (2-1)*1 meter, and the length of the cable 1 is 1 meter.

[0031] The inkjet printer 2 is provided with a linear motion module 7, which is electrically connected to a main controller 4. Figure 2 As shown, the linear motion module 7 in this embodiment is a linear motor, which can drive the inkjet printer 2 to move horizontally. A bracket 11 is connected above the slider of the linear motor. A horizontally arranged first piston 12 is fixed on the vertical part of the bracket 11. The first piston 12 is a double piston structure, which is in a horizontal "I" shape. The first piston 12 is covered with a fixed first piston 12 cylinder on the outside. The side walls at both ends of the first piston 12 cylinder are provided with a check valve 2 16. The check valve 2 16 only allows airflow from the outside to flow into the first piston 12 cylinder. The side walls at both ends of the first piston 12 cylinder are connected to the second piston 14 cylinder through the air pipe 13. A check valve 15 is provided between the second piston 14 cylinder and the air pipe 13. The check valve 15 only allows airflow from the first piston 12 cylinder to enter the second piston 14 cylinder. When the first piston 12 moves left and right with the linear motor, the gas in the first piston 12 cylinder is compressed by the first piston 12 and pushed into the second piston 14 cylinder.

[0032] A second piston 14 that can slide left and right is provided in the second piston 14 tube, and a pigment groove 10 is provided on the second piston 14 tube. The pigment groove 10 is divided into two left and right cavities by a vertical baffle in the middle. The left cavity is filled with green pigment, and the right cavity is filled with yellow pigment. An opening 101 is provided at the bottom of the pigment groove 10. Two front and rear vertical pigment channels 171 are provided in the second piston 14. When the pigment channel 171 is located directly below the opening 101 of the yellow or green cavity, the channel is connected with the opening 101.

[0033] An axially horizontal annular electromagnet 181 is installed in the closed cavity formed by the second piston 14 tube and the second piston 14. The right end of the second piston 14 is doped with magnetic material. A pressure sensor is installed in the closed cavity. The pressure sensor and the electromagnet 181 are electrically connected to the main controller 4. The pressure sensor detects the pressure change and starts the electromagnet 181. The electromagnet 181 and the opposite end of the second piston 14 have different polarities, causing the second piston 14 to move to the right.

[0034] The inkjet printer 2 is a venturi tube structure arranged vertically in the axial direction. The upper end of the venturi tube 8 is the air inlet end, which is connected to the air bag on the inner wall of the second piston 14 tube. At the same time, the air inlet end is connected to the external air pump 9, which is electrically connected to the main controller 4. The lower end of the venturi tube is the air outlet end. The adsorption chamber of the venturi tube 8 structure is connected to the bottom discharge port 19 of the second piston 14 tube through a pipeline. The adsorption chamber of the venturi tube 8 is higher than the horizontal plane of the pigment tank 10. The opening 101 is connected to the bottom opening 101 of the pigment tank 10 through the channel of the second piston 14. When the second piston 14 is pushed by the airflow, the channel is connected to the green cavity of the pigment tank 10, and at the same time, the air pump 9 pumps gas into the air inlet end of the venturi tube 8, and a negative pressure is formed at the adsorption chamber of the venturi tube 8. The green pigment passes through the adsorption chamber and is ejected from the air outlet end of the venturi tube 8 together with the airflow. Since the air pump 9 flows at the air inlet end, the pressure at the air inlet end is lower than the atmospheric pressure, so that the gas inside the airbag connected to the air inlet end flows to the air outlet end of the venturi tube 8, the volume of the airbag decreases, and the pressure on the left side of the second piston 14 is greater than the pressure on the right side, so the second piston 14 moves to the right to its original position. When the second piston 14 is not pushed by the airflow, the pigment channel 171 on the second piston 14 located on the yellow cavity side is always connected to the yellow cavity of the pigment tank 10.

[0035] The pigment tank 1010 is a sandwich shell, and the interlayer of the pigment tank 10 is filled with warm water. The upper end of the pigment tank 10 is processed with an opening and a heating conductor that can be inserted into the interlayer is installed. The heating conductor is electrically connected to the solar panel on the outside. In this embodiment, the heating conductor is an electric heating wire. A stirring roller is installed in the pigment tank 10 and extends vertically to the bottom of the pigment tank 10. The upper end of the stirring roller is keyed to the output shaft of the motor. A baffle is provided below the cable, and the baffle has a concave surface for receiving the pigment sprayed by the inkjet gun.

[0036] The specific implementation process is as follows:

[0037] The starting device measures the meters of cable 1, and the main controller 4 starts the air pump 9 to pump gas into the venturi tube 8. At this time, the pigment channel 171 on the second piston 14 is connected to the yellow pigment tank 10. Under the negative pressure of the suction port of the venturi tube 8, the yellow pigment flows from the discharge port 19 to the venturi tube and is ejected with the gas, and the cable 1 is marked with yellow code one; the cable 1 moves to the left, and when the camera 3 detects the yellow code, the controller starts the air pump 9 to mark the cable 1 with yellow code two through the venturi tube 8 again, and at this time the distance between the yellow codes one and two is 1 meter, and the cable 1 continues to move to the left. When the camera 3 detects the yellow code two, the inkjet printer 2 marks the cable 1 with yellow code three. This is a case where there is no error between the codes.

[0038] When there is an error between the codes, such as when the yellow code 2 is located below the camera 1 3, the yellow code 2 is at the zero scale line of the scale ruler 6, and the camera 2 5 detects that the yellow code 1 is not at the 1-meter scale of the scale ruler 6. According to the distance measured by the camera, the main controller 4 controls the linear motor to move left or right to compensate for the error. At this time, the first piston 12 on the linear motor is synchronously displaced left and right and then reset, squeezing the gas in the first piston 12 cylinder. The gas flows into the second piston 14 cylinder through the one-way valve 15, and the gas pushes the second piston 14 to move left. The pigment channel 171 on the plug 14 is connected to the green pigment tank 10, and the air pump 9 pumps air to the venturi tube 8. At this time, the cable 1 is marked with a green logo, which is convenient for the camera 2 5 and the camera 1 3 to capture the error segment more accurately according to the different color logos, so that the main controller 4 can make corresponding adjustments to the error; after the marking is completed, the main controller 4 starts the electromagnet 181, and the second piston 14 with magnetic material moves to the right under the action of suction. At this time, the airway 172 is connected with the through hole 173 at the upper end of the second piston 14 cylinder, the gas in the closed cavity is discharged, and the second piston 14 is reset.

[0039] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A non-contact cable core metering device, characterized in that: An inkjet printer and camera 1 working on the cable surface are arranged horizontally above the cable moving in the horizontal direction, the horizontal distance between the camera 1 and the inkjet printer is L1, and the camera 1 and the inkjet printer are electrically connected to a main controller, and the main controller measures the number of times the inkjet printer sprays N times, and the cable length in meters is L1*(N-1); it also includes two paint tanks filled with pigments of different colors, and the inkjet printer selectively connects the pigment tanks to spray pigment; the inkjet printer is connected to a linear motion module through a bracket, and the linear motion module is electrically connected to the main controller, and the linear motion module can drive the inkjet printer to move horizontally; with the camera 1 as the starting point, a camera 2 is arranged at a horizontal distance L2 along the direction of cable movement, and the camera 1 and the camera 2 are below. A scale parallel to the cable is provided, and the origin of the scale is facing the camera 1; the inkjet printer includes a venturi tube and an air pump, the air inlet end of the venturi tube is connected to the air pump, the air pump is electrically connected to the main controller, and the inlet of the venturi tube adsorption chamber is connected to the pigment tank; a first piston is horizontally connected to the bracket, the first piston is a double-piston structure, the first piston is slidably connected to the first piston cylinder outside, the two ends of the first piston cylinder are connected to the second piston cylinder through the air pipe, the second piston cylinder is horizontally arranged, a one-way valve 1 is provided between the second piston cylinder and the air pipe, the one-way valve 1 only allows gas to enter the second piston cylinder from the air pipe, and two one-way valves are provided at both ends of the first piston cylinder, the one-way valve 2 only allows gas to enter the first piston cylinder from the outside of the first piston cylinder; The pigment groove is located on the top surface of the second piston cylinder, and the closed cavity formed by the second piston cylinder and the second piston is provided with an electromagnet and a pressure sensor, the electromagnet is located at the bottom end of the second piston cylinder, the pressure sensor is connected to the inner wall of the piston cylinder and is electrically connected to the main controller, a second piston is slidably connected in the second piston cylinder, a magnet is provided at one end of the second piston close to the electromagnet, a pigment channel vertically penetrating the second piston is opened inside the second piston, and a discharge port is opened on the bottom side wall of the second piston cylinder; An air passage is formed between the end surface of the second piston close to the electromagnet and the top of the second piston, and a through hole which can be connected to the air passage is formed on the upper side wall of the second piston cylinder.

2. A non-contact cable core metering device according to claim 1, characterized in that: The pigment tank has two cavities distributed in the horizontal direction, and the pigment tank is divided into two left and right cavities by a vertical baffle in the middle, and the two cavities are arranged one in front and one in the back. The bottom surfaces of the pigment tanks of the two cavities are provided with openings, and the number of the venturi tubes is two, and the venturi tubes are arranged vertically from front to back, and the two openings are respectively connected to the negative pressure chambers of the venturi tubes through pipes; There are two pigment channels inside the second piston, and the two pigment channels can only be connected to one of the two cavities at the same time.

3. A non-contact cable core metering device according to claim 2, characterized in that: The electromagnet is in the shape of a circular ring with its axial direction horizontal.

4. A non-contact cable core metering device according to claim 3, characterized in that: The pigment tank is a sandwich shell, the sandwich of the pigment tank is filled with warm water, the upper end of the pigment tank is provided with a heating conductor that can extend into the sandwich, and the outside of the heating conductor is electrically connected to a solar panel.

5. A non-contact cable core metering device according to claim 4, characterized in that: A baffle is provided below the cable, and the baffle is provided with a concave surface for receiving the inkjet gun paint.

6. A non-contact cable core metering device according to claim 5, characterized in that: A stirring roller is arranged in the pigment tank and vertically extends to the bottom of the pigment tank. The upper end of the stirring roller is key-connected to the output shaft of the motor.

7. A non-contact cable core metering device according to claim 6, characterized in that: The adsorption chamber of the venturi tube is higher than the horizontal plane where the pigment tank is located.

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