Can clamping device

Abstract

The utility model relates to the technical field of iron can detection, in particular to an iron can clamping device which comprises a bottom bin and two clamping mechanisms, the two clamping mechanisms are connected with the bottom bin in a sliding mode, the top of the bottom bin is connected with two roll shafts in a rotating mode, and the two ends of each roll shaft are fixedly connected with positioning shafts. A driven wheel is fixedly connected to the outer surface of the positioning shaft, a motor is fixedly installed in the bottom bin, and a transmission wheel is fixedly connected to an output shaft of the motor. The device has the advantages that the motor drives the two roll shafts to drive the iron can to rotate, if the thickness of a coating film on the surface of the iron can is not uniform, data measured by the infrared transmitter and the infrared receiver can change correspondingly, and therefore when the coating film is detected to be uniform or not, operation is easy, convenient, time-saving and labor-saving, the belt between the two driven wheels is pressed downwards through the positioning wheel, and the detection accuracy is improved. And therefore, the problem that normal rotation of the iron can is affected due to friction of the iron can in the belt transmission process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of iron can detection, in particular to an iron can clamping device. Background Art

[0002] After the iron can is printed and coated, a clamping device is needed for inspection. The principle is to clamp the iron can with two clamps, and then measure the distance between the two clamps to get the diameter of the iron can after coating. By subtracting the diameter of the iron can before coating, the thickness of the coating is obtained.

[0003] A tinplate can printing coating thickness measuring structure disclosed in Chinese patent CN220541990U, the tinplate can printing coating thickness measuring structure, the coated tinplate can is placed on two support rollers, and then the two clamps are driven by a driving component to move relative to each other, so that the two clamps clamp the tinplate can. During clamping, the tinplate can is automatically detected by the thickness measuring component and the thickness of the coating on the outer surface of the tinplate can is measured. Finally, the measurement data is displayed on the intelligent screen to determine whether the coating thickness is up to standard and timely feedback is given to the coating process, thereby reducing the coating defect rate, having high practicality and being more convenient for popularization and use. However, the tinplate can printing coating thickness measuring structure has the following defects while solving the problem:

[0004] After the thickness measuring components on the two clamps clamp the iron can, only one set of data can be measured. If it is necessary to detect whether the coating is uniform, the thickness measuring components need to be moved to both sides to loosen the iron can, and then the iron can is rotated a certain angle, and then the thickness measuring components are used to clamp the iron can to measure the data. Through multiple reciprocating operations, multiple sets of data can be measured to determine whether the coating is uniform. Therefore, the operation of measuring the uniformity of the coating is relatively complicated, time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical defects described in the background technology.

[0006] Therefore, one purpose of the utility model is to provide a tin can clamping device, aiming to solve the problem that the operation of measuring the uniformity of the printed coating film of the tinplate can in the prior art is relatively complicated, time-consuming and labor-intensive.

[0007] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides an iron can clamping device, including a bottom bin and two clamping mechanisms, characterized in that the two clamping mechanisms are slidably connected to the bottom bin, the top of the bottom bin is rotatably connected to two rollers, both ends of the rollers are fixedly connected to positioning shafts, the outer surface of the positioning shaft is fixedly connected to a driven wheel, a motor is fixedly installed inside the bottom bin, a transmission wheel is fixedly connected to the output shaft of the motor, and the transmission wheel is connected to the driven wheel through a belt.

[0008] Preferably, any of the above schemes is that a hole groove is opened on the top of the bottom bin, and the belt passes through the hole groove to the top of the bottom bin and is connected to the driven wheel. A positioning seat is fixedly connected to the top of the inner wall of the bottom bin, and a positioning wheel is rotatably connected to one side of the positioning seat to prevent the belt from contacting the surface of the iron can.

[0009] Preferably, from any of the above schemes, the clamping mechanism comprises a support plate and a splint, a positioning hole is opened on one side of the support plate, a polytetrafluoroethylene plate is inlaid on one side of the splint, a guide rod is fixedly connected to one side of the splint, the guide rod is slidably inserted in the positioning hole, and a spring is sleeved on the outer surface of the guide rod, and one end of the guide rod away from the splint is fixedly connected to a limiting block for clamping the tube, and the polytetrafluoroethylene plate has the advantage of low friction, which avoids the problem of the iron can being unable to rotate due to excessive clamping force.

[0010] Preferably, one side of the bottom of the two splints is inlaid with an infrared transmitter and an infrared receiver respectively, and a smart screen is fixed on the front of the bottom bin, and the inlaying method makes the distance measured by the infrared transmitter and the infrared receiver equal to the diameter of the iron can plus the thickness of two layers of coating.

[0011] Preferably, any of the above schemes is that a slide groove is provided on the top of the bottom bin, the support plate is slidably connected in the slide groove, a double-axis motor is fixedly installed inside the bottom bin, two output shafts of the double-axis motor are fixedly connected with screws, a threaded hole is provided on one side of the bottom of the support plate, the screw is threadedly connected in the threaded hole, the inner walls on both sides of the bottom bin are fixedly connected with bearings, the ends of the two screws are rotatably connected in the bearings, a limiting rod is fixedly connected to the inner wall of the bottom bin, a limiting hole is provided on one side of the support plate, the limiting rod is slidably connected in the limiting hole, the limiting rod and the slide groove limit the support plate to prevent it from rotating, and the limiting rod supports the support plate so that the screw is not subject to the pressure of the support plate, thereby avoiding the problem of the screw deformation affecting the transmission.

[0012] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0013] 1. The motor drives the two rollers to rotate, thereby driving the iron can to rotate. If the thickness of the coating on the surface of the iron can is uneven, the data measured by the infrared transmitter and the infrared receiver will change accordingly. Therefore, it is easy to operate when detecting whether the coating is uniform, saving time and effort.

[0014] 2. The positioning wheel presses down the belt between the two driven wheels so that the belt will not contact the iron can, thereby avoiding the problem of the belt rubbing against the iron can during transmission and affecting the normal rotation of the iron can.

[0015] 3. By setting up the polytetrafluoroethylene plate, the polytetrafluoroethylene plate has the advantage of low friction, thereby ensuring that the iron can will not be unable to rotate due to excessive clamping force.

[0016] 4. The infrared transmitter and the infrared receiver are directly embedded in the two clamping plates, so that the distance directly measured by the infrared transmitter and the infrared receiver is the diameter d of the iron can plus the total length of the two layers of coating. Therefore, when calculating, you only need to subtract the diameter d of the iron can from the measured data and then divide it by the thickness of one layer of coating. The calculation method is simple.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram according to the utility model.

[0020] Figure 2 It is a schematic diagram of the structure inside the bottom bin according to the utility model.

[0021] Figure 3 It is a structural schematic diagram of the clamping mechanism according to the utility model.

[0022] Among them: 1. Bottom bin, 11. Hole slot, 12. Slide slot, 13. Smart screen, 14. Bearing, 15. Limit rod, 2. Clamping mechanism, 21. Support plate, 22. Clamp, 221. Polytetrafluoroethylene plate, 23. Positioning hole, 24. Guide rod, 25. Spring, 26. Limit block, 27. Threaded hole, 28. Limit hole, 3. Roller, 31. Positioning shaft, 32. Driven wheel, 33. Bearing seat, 4. Motor, 41. Drive wheel, 42. Belt, 43. Positioning seat, 44. Positioning wheel, 5. Infrared transmitter, 51. Infrared receiver, 6. Dual-axis motor, 61. Screw. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides a tin can clamping device.

[0026] Embodiment 1:

[0027] like Figure 1-2 As shown, it includes a bottom bin 1 and two clamping mechanisms 2, characterized in that the two clamping mechanisms 2 are slidably connected to the bottom bin 1, the top of the bottom bin 1 is rotatably connected to two roller shafts 3, the top of the bottom bin 1 is fixedly connected to a bearing seat 33, the roller shaft 3 is rotatably connected in the bearing seat 33 through a positioning shaft 31 arranged at its end, both ends of the roller shaft 3 are fixedly connected to the positioning shaft 31, the outer surface of the positioning shaft 31 is fixedly connected to a driven wheel 32, a motor 4 is fixedly installed inside the bottom bin 1, a transmission wheel 41 is fixedly connected to the output shaft of the motor 4, a hole groove 11 is opened on the top of the bottom bin 1, the transmission wheel 41 is transmission-connected to the driven wheel 32 through a belt 42, the belt 42 passes through the hole groove 11 to the top of the bottom bin 1 and is connected to the driven wheel 32, the iron can is placed on the two roller shafts 3, the motor 4 drives the two roller shafts 3 to rotate through the belt 42, so that the iron can on the top of the roller shaft 3 rotates.

[0028] Further preferably, Figure 2 As shown, a positioning seat 43 is fixedly connected to the top of the inner wall of the bottom bin 1, and a positioning wheel 44 is rotatably connected to one side of the positioning seat 43. The positioning wheel 44 presses down the belt 42 between the two driven wheels 32, so that when the iron can is placed on the two rollers 3, the belt 42 will not contact the iron can, thereby avoiding the problem of the belt 42 rubbing against the iron can during the transmission process and affecting the normal rotation of the iron can.

[0029] Embodiment 2:

[0030] like Figure 2-3As shown, on the basis of embodiment 1, the clamping mechanism 2 includes a support plate 21 and a clamping plate 22, a positioning hole 23 is opened on one side of the support plate 21, and a polytetrafluoroethylene plate 221 is inlaid on one side of the clamping plate 22. The plate material of polytetrafluoroethylene has the advantage of low friction, so that when the polytetrafluoroethylene plate 221 clamps the iron can, the surface friction between the iron can and the surface is small, thereby ensuring that the iron can will not be unable to rotate due to excessive clamping force. A guide rod 24 is fixedly connected to one side of the clamping plate 22, and the guide rod 24 is slidably inserted in the positioning hole 23, and a spring 25 is sleeved on the outer surface of the guide rod 24, and the spring 25 is located between the support plate 21 and the clamping plate 22. The end of the guide rod 24 away from the clamping plate 22 is fixedly connected to a limiting block 26 to prevent the guide rod 24 from detaching from the positioning hole 23 on the support plate 21.

[0031] Specifically, Figure 2-3 As shown, an infrared transmitter 5 and an infrared receiver 51 are respectively embedded on one side of the bottom of the two clamping plates 22, and the emitting surface of the infrared transmitter 5 and the receiving surface of the infrared receiver 51 are respectively flush with the clamping surfaces of the two polytetrafluoroethylene plates 221, so that the distance directly measured by the infrared transmitter 5 and the infrared receiver 51 is the diameter d of the iron can plus the total length of the two layers of coating. A smart screen 13 is fixed on the front of the bottom bin 1 for displaying the measured data.

[0032] Specifically, a slide groove 12 is provided on the top of the bottom bin 1, and the support plate 21 is slidably connected in the slide groove 12. A dual-axis motor 6 is fixedly installed inside the bottom bin 1, and screws 61 are fixedly connected to the two output shafts of the dual-axis motor 6. A threaded hole 27 is provided on one side of the bottom of the support plate 21, and the screw 61 is threadedly connected in the threaded hole 27. The dual-axis motor 6 drives the two screws 61 to rotate in the threaded holes 27 on the two support plates 21 respectively, so that the two support plates 21 are closer to or farther away from each other. Bearings 14 are fixedly connected to the inner walls on both sides of the bottom bin 1, and the ends of the two screws 61 are rotatably connected in the bearings 14 to support the ends of the screws 61 to avoid the problem of sagging and deformation of one end of the screw 61.

[0033] Specifically, the inner wall of the bottom bin 1 is fixedly connected to a limit rod 15, a limit hole 28 is opened on one side of the support plate 21, and the limit rod 15 is slidably connected in the limit hole 28. The limit rod 15 supports the clamping mechanism 2 so that the screw 61 is not affected by the gravity of the clamping mechanism 2, thereby avoiding the problem of deformation of the screw 61 due to force, thereby achieving the purpose of protecting the screw 61.

[0034] The working principle of the utility model is as follows: when in use, the iron can is placed on the top of the two rollers 3, and then the double-axis motor 6 is started to drive the two clamping mechanisms 2 to approach each other, so that the polytetrafluoroethylene plate 221 on the clamping plate 22 clamps the surface of the iron can. At this time, the distance measured by the infrared transmitter 5 and the infrared receiver 51 is the diameter d of the iron can plus the thickness of the two layers of coating. The measured data is subtracted from the diameter d of the iron can and then divided by 2, which is the thickness of one layer of coating. The two rollers 3 are driven to rotate by the motor 4 through the belt 42, and the two rotating rollers 3 will drive the iron can to rotate. If the thickness of the coating on the surface of the iron can is uneven, the spring 25 will extend or contract accordingly, and the distance between the two clamping plates 22 will also change accordingly, so that the data measured by the infrared transmitter 5 and the infrared receiver 51 will also change accordingly. By observing the change value, it can be determined whether the coating is uniform.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. When detecting whether the coating on the surface of the iron can is uniform, the two clamping mechanisms 2 clamp the iron can placed on the two rollers 3, and then the two rollers 3 are driven to rotate by the motor 4, thereby driving the iron can to rotate. If the thickness of the coating on the surface of the iron can is uneven, the spring 25 will extend or contract accordingly, and the distance between the two clamping plates 22 will also change accordingly, so that the data measured by the infrared transmitter 5 and the infrared receiver 51 will also change accordingly. If the thickness of the coating on the surface of the iron can is uniform, the spring 25 will not extend or contract, and the distance between the two clamping plates 22 will not change. Therefore, when detecting whether the coating is uniform, the operation is simple, time-saving and labor-saving.

[0037] 2. By setting a positioning wheel 44, the positioning wheel 44 presses down the belt 42 between the two driven wheels 32, so that when the iron can is placed on the two rollers 3, the belt 42 will not contact the iron can, thereby avoiding the problem of the belt 42 rubbing against the iron can during the transmission process, affecting the normal rotation of the iron can, and improving practicality.

[0038] 3. By setting the polytetrafluoroethylene plate 221, the polytetrafluoroethylene plate has the advantage of low friction, so when the polytetrafluoroethylene plate 221 clamps the iron can, the friction with the surface of the iron can is small, thereby ensuring that the iron can will not be unable to rotate due to excessive clamping force.

[0039] 4. The infrared transmitter 5 and the infrared receiver 51 are directly embedded in the two clamping plates 22. The emitting surface of the infrared transmitter 5 and the receiving surface of the infrared receiver 51 are flush with the clamping surfaces of the two polytetrafluoroethylene plates 221 respectively. In this way, the distance directly measured between the infrared transmitter 5 and the infrared receiver 51 is the diameter d of the iron can plus the total length of the two layers of coating. Therefore, when calculating, you only need to subtract the diameter d of the iron can from the measured data and divide it by 2, which is the thickness of one layer of coating. The calculation method is simple.

Claims

1. A can clamping device, comprising a bottom bin (1) and two clamping mechanisms (2), characterized in that: The two clamping mechanisms (2) are slidably connected to the bottom bin (1); the top of the bottom bin (1) is rotatably connected to two rollers (3); both ends of the rollers (3) are fixedly connected to positioning shafts (31); the outer surface of the positioning shaft (31) is fixedly connected to a driven wheel (32); a motor (4) is fixedly installed inside the bottom bin (1); a transmission wheel (41) is fixedly connected to the output shaft of the motor (4); and the transmission wheel (41) is transmission-connected to the driven wheel (32) via a belt (42).

2. The iron can clamping device according to claim 1, characterized in that: The top of the bottom bin (1) is fixedly connected with a bearing seat (33), and the roller shaft (3) is rotatably connected in the bearing seat (33) via a positioning shaft (31) arranged at the end thereof.

3. The iron can clamping device according to claim 1, characterized in that: The top of the bottom bin (1) is provided with a hole groove (11), and the belt (42) passes through the hole groove (11) to the top of the bottom bin (1) and is connected to the driven wheel (32).

4. The iron can clamping device according to claim 3, characterized in that: A positioning seat (43) is fixedly connected to the top of the inner wall of the bottom bin (1), and a positioning wheel (44) is rotatably connected to one side of the positioning seat (43).

5. The iron can clamping device according to claim 1, characterized in that: The clamping mechanism (2) comprises a support plate (21) and a clamping plate (22), a positioning hole (23) is provided on one side of the support plate (21), a polytetrafluoroethylene plate (221) is inlaid on one side of the clamping plate (22), a guide rod (24) is fixedly connected to one side of the clamping plate (22), the guide rod (24) is slidably inserted in the positioning hole (23), a spring (25) is sleeved on the outer surface of the guide rod (24), and one end of the guide rod (24) away from the clamping plate (22) is fixedly connected to a limiting block (26).

6. The iron can clamping device according to claim 5, characterized in that: An infrared transmitter (5) and an infrared receiver (51) are respectively embedded on one side of the bottom of the two clamping plates (22), and a smart screen (13) is fixed on the front of the bottom bin (1).

7. The iron can clamping device according to claim 5, characterized in that: A slide groove (12) is provided at the top of the bottom bin (1), and the support plate (21) is slidably connected in the slide groove (12). A dual-axis motor (6) is fixedly installed inside the bottom bin (1), and screws (61) are fixedly connected to the two output shafts of the dual-axis motor (6). A threaded hole (27) is provided on one side of the bottom of the support plate (21), and the screw (61) is threadedly connected in the threaded hole (27). Bearings (14) are fixedly connected to the inner walls on both sides of the bottom bin (1), and the ends of the two screws (61) are rotatably connected in the bearings (14).

8. The iron can clamping device according to claim 7, characterized in that: The inner wall of the bottom bin (1) is fixedly connected to a limiting rod (15), one side of the support plate (21) is provided with a limiting hole (28), and the limiting rod (15) is slidably connected in the limiting hole (28).

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