Automatic cutting device for industrial radiographic film

Abstract

The utility model discloses an automatic cutting device for an industrial radiographic film, which belongs to the technical field of radiographic detection and is characterized in that the film is clamped by a clamping mechanism, and a lead screw motor is controlled by a controller according to data of a position sensor and actual cutting requirements so as to further control a transmission mechanism to drive the clamping mechanism to move; the effect of conveying the rubber sheet is achieved; the first air cylinder is controlled by the controller to drive the cutting mechanism to cut the conveyed film; compared with the prior art, after the clamping mechanism is used for clamping the film, the cutting device does not move relative to the film in the conveying process, that is, the clamping mechanism only extrudes the initial clamping position of the film, in the conveying process, the clamping area of the film is not enlarged any more, the film clamping area is reduced, and the cutting efficiency is improved. Therefore, the problem of large-area film extrusion is avoided, and the probability of film damage is reduced. The defect that the film is extruded in a large area in an existing film cutting mode is overcome, and the risk that the film is greatly damaged exists.

Description

Technical Field

[0001] The utility model belongs to the technical field of ray detection, and in particular relates to an automatic cutting device for industrial ray films. Background Art

[0002] When performing radiographic inspection on welds, films of different sizes and specifications are required. Currently, the films provided by the industry are generally of fixed specifications and need to be cut according to the different requirements of radiographic inspection. The existing method of cutting films is generally manual cutting. Since film cutting needs to be done in a darkroom with poor light, manual cutting is slow, inefficient, and has poor dimensional accuracy, which also leads to the problem of film waste.

[0003] In order to solve the above problems, the patent document with the announcement number CN218576302U discloses an automatic cutting device, which includes a workbench with a strip-shaped cutting opening; it also includes a transmission mechanism, a cutting mechanism, a fixed length device, a clamping cylinder and a motor; the transmission gap between the active roller and the driven roller of the transmission mechanism clamps the film, the transmission mechanism rotates the active roller and the driven roller according to the signal of the fixed length device to make the silicone sheet forward to the specified position, and the cutting mechanism controls the cutting knife to complete the cutting of the film. The device solves the problem of poor dimensional accuracy of manual cutting through automatic control, but because the transmission mechanism clamps and conveys the film through the relative rolling of the active roller and the driven roller, that is, the active roller and the driven roller will squeeze the cut film over a large area, this clamping and conveying method is easy to damage the film.

[0004] In summary, the existing method of cutting film has the defect of squeezing the film over a large area, and there is a great risk of damaging the film. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an automatic cutting device for industrial X-ray films in view of the deficiencies in the above-mentioned prior art. The design of the device is novel and reasonable. After the clamping mechanism clamps the film, it no longer rolls on the film, thereby eliminating the phenomenon of the clamping mechanism squeezing the film over a large area and avoiding damage to the film by the clamping mechanism.

[0006] In order to solve the above technical problems, the utility model discloses an automatic cutting device for industrial X-ray films, and specifically discloses the following technical solutions:

[0007] An automatic cutting device for industrial X-ray films comprises a workbench and a cutting mechanism arranged at one end of the workbench and used for cutting films, a clamping mechanism for clamping films is arranged at the other end of the workbench, and a transmission mechanism for driving the clamping mechanism to a cutting position is arranged at the bottom of the workbench; the clamping mechanism comprises a bottom plate, a top plate and a pressing plate arranged between the bottom plate and the top plate and movable up and down, the bottom plate and the top plate are connected by a connecting piece at a side away from the cutting mechanism, and a clamping space formed between the bottom plate and the pressing plate is used for clamping films; the controller is respectively connected to the transmission mechanism and the position sensor by electrical signals.

[0008] Furthermore, compression springs are provided at both ends between the bottom plate and the pressure plate to enable the pressure plate to move upwards; and a handle screw passing through the middle of the top plate to support the pressure plate is also provided to enable the pressure plate to move downwards.

[0009] Furthermore, it also includes a connecting column, one end of which is connected to the bottom plate, and the other end of which passes through a compression spring and a pressure plate to be connected to the top plate, and the inner diameter of the compression spring is larger than the diameter of the connecting column.

[0010] Furthermore, the transmission mechanism includes a screw, a slider and a screw motor for driving the screw, the screw is slidably connected to the slider, the screw is fixed on the workbench perpendicular to the cutting surface direction of the cutting mechanism, the slider is fixedly arranged below the clamping mechanism, and the controller is electrically connected to the screw motor.

[0011] Furthermore, the cutting mechanism includes a first cylinder, a cutting knife connected to the piston end of the first cylinder, and a knife pad arranged on a workbench below the cutting knife, wherein the cutting knife is used for cutting the film.

[0012] Furthermore, it also includes a gantry for fixing above the workbench, and the first cylinder is fixed on the gantry.

[0013] Furthermore, the cutting mechanism also includes a second cylinder for fixing on the gantry, and the piston end of the second cylinder is connected to a pressure strip for cooperating with the workbench to press the film, and the pressure strip is parallel to the cutting knife and arranged close to the cutting surface.

[0014] Furthermore, the first cylinder includes two synchronously arranged ones, and the telescopic ends of the two first cylinders are fixedly connected to the cutting knife; the above-mentioned second cylinder includes two synchronously arranged ones, and the telescopic ends of the two second cylinders are fixedly connected to the knife pressure strip.

[0015] Furthermore, it also includes a film storage groove arranged on the workbench below the cutting mechanism.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The utility model clamps the film through the clamping mechanism, and controls the screw motor according to the data of the position sensor and the actual cutting demand through the controller to further control the transmission mechanism to drive the clamping mechanism to move, so as to achieve the effect of conveying the film; the controller controls the first cylinder to drive the cutting mechanism to cut the conveyed film; compared with the prior art, after the cutting device clamps the film with the clamping mechanism, it no longer moves relative to the film during the conveying process, that is, the clamping mechanism only squeezes the initial clamping position of the film, and no longer expands the clamping area of ​​the film during the conveying process, thereby reducing the area of ​​the clamped film, so there will be no problem of large-area squeezing of the film, and the probability of damaging the film is reduced. The defect of the existing method of cutting film that there is large-area squeezing of the film is solved, and there is a greater risk of damaging the film.

[0018] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model industrial radiation film automatic cutting device;

[0020] Figure 2 for Figure 1 A magnified view of point A;

[0021] Figure 3 This is a top view of the structure of an embodiment of the utility model industrial radiation film automatic cutting device;

[0022] Figure 4 This is a schematic structural diagram of a clamping mechanism of an embodiment of the industrial X-ray film automatic cutting device of the utility model;

[0023] Description of reference numerals:

[0024] 1. Workbench;

[0025] 2. Cutting mechanism; 21. Cutting knife; 22. Knife pad; 23. Pressing strip; 24. First cylinder;

[0026] 25. Second cylinder;

[0027] 3. Position sensor;

[0028] 4. Clamping mechanism; 41. Bottom plate; 42. Top plate; 43. Pressing plate; 44. Connecting piece;

[0029] 45. Compression spring; 46. Connecting column; 47. Handle screw;

[0030] 5. Transmission mechanism; 51. Lead screw; 52. Slider; 53. Lead screw motor;

[0031] 6. Film;

[0032] 7. Film storage slot;

[0033] 8. Controller. DETAILED DESCRIPTION

[0034] Industrial X-ray film automatic cutting device embodiment:

[0035] The specifications of finished industrial films are generally: 80mm×360mm, but in actual use, the specifications are diverse, so the film needs to be cut according to actual use requirements, for example, it can be cut into 80mm×80mm specifications. In order to meet the cutting requirements, the utility model provides the following solutions:

[0036] Figure 1 This is a schematic diagram of the main structure of the industrial X-ray film automatic cutting device. Figure 3 is a schematic diagram of the top view of the device. Figure 3 The clamping mechanism 4 in Figure 1 After traveling a distance, Figure 3 The gantry structure is also omitted. Figure 1 , Figure 2 As shown, the automatic cutting device for industrial X-ray films includes a workbench 1, a cutting mechanism 2, a clamping mechanism 4, a transmission mechanism 5, a controller 8, a first cylinder 24 for driving the cutting mechanism 2 and a lead screw motor 53 for driving the transmission mechanism, and a position sensor 3 for collecting a position signal of the clamping mechanism 4; the cutting mechanism 2 is arranged on one end of the workbench 1, and the clamping mechanism 4 and the transmission mechanism 5 are arranged on the other end of the workbench 1; wherein the transmission mechanism 5 includes a lead screw 51 and a slider 52, the lead screw 51 is slidably connected to the slider 52, the lead screw 51 is fixed on the workbench 1 perpendicular to the cutting surface direction of the cutting mechanism 2, and the above-mentioned slider 52 is fixedly arranged below the clamping mechanism 4. Specifically, the controller 8 is connected to the first cylinder 24, the lead screw motor 53 and the position sensor 3 by electrical signals respectively. The controller 8 obtains the position signal of the clamping mechanism 4 through the position sensor 3, and determines whether the clamping mechanism 4 has reached the target position according to the signal. The controller 8 indirectly controls the transmission mechanism 5 by controlling the switch of the lead screw motor 53. Since the slider 52 of the transmission mechanism 5 is fixedly arranged below the clamping mechanism 4, the controller 8 can achieve the effect of indirectly controlling the clamping mechanism 4 by controlling the lead screw motor 53, thereby realizing the control of the transmission of the film 6. The automatic cutting function of the cutting device is realized by the controller 8; wherein, the clamping mechanism 4 only squeezes the initial clamping position of the film 6, and during the conveying process, the clamping area of ​​the film 6 is no longer expanded, achieving the effect of reducing the clamping area of ​​the film 6, so that the problem of squeezing the film 6 over a large area will not occur, and the probability of damaging the film 6 is reduced. Preferably, the lead screw motor 53 adopts a stepping motor, and the controller 8 adopts a PLC programming controller.

[0037] In order to facilitate the manufacture of the device, a mounting groove is provided in the middle of the workbench 1 for mounting the lead screw 51 of the conveying mechanism. In order to adapt to the cutting of films 6 of various specifications, the size of the workbench 1 is set to a specification of 600mm×750mm.

[0038] like Figure 3 , Figure 4 As shown, in order to ensure efficient cutting of the film 6, the clamping mechanism 4 includes a bottom plate 41, a top plate 42 and a pressing plate 43 that can be arranged between the bottom plate 41 and the top plate 42 and can move up and down. The clamping space formed between the bottom plate 41 and the pressing plate 43 is used to clamp the film 6. The adjustable function of the clamping space is achieved by the pressing plate 43 that can move up and down, so as to meet the effect of clamping multiple films 6 at the same time. In addition, the bottom plate 41 and the top plate 42 are connected by a connecting member 44 on the side away from the cutting mechanism 2. The connecting member can be a connecting plate or a connecting rod. In short, it is sufficient to achieve the connection effect. The longitudinal section of the clamping mechanism 4 is an m-shaped structure with an opening toward the cutting mechanism 2. When the film 6 needs to be clamped, one end of the film 6 is inserted into the clamping space. Due to the limitation of the connecting member 44, the length of the film 6 that can penetrate into the clamping space is fixed, which ensures that the clamping position of each film 6 is fixed, which is convenient for the controller 8 to perform precise control according to the data of the position sensor 3.

[0039] In order to conveniently adjust the height of the clamping space, compression springs 45 are provided at both ends between the bottom plate 41 and the pressure plate 43, which are used to realize the upward movement of the pressure plate 43; and a handle screw 47 is also provided through the middle of the top plate 42 to resist the pressure plate 43, which is used to realize the downward movement of the pressure plate 43. The compression spring 45 continuously provides an upward force to the pressure plate 43; when the handle screw 47 is rotated downward, the handle screw 47 provides a downward force to the pressure plate 43, so as to achieve the effect of reducing the clamping height; when the handle screw 47 is rotated upward, the pressure plate 43 is subjected to the upward force of the compression spring 45, so as to achieve the effect of increasing the clamping height. That is, the height of the clamping space is adjusted by the handle screw 47. Preferably, the height difference between the bottom plate 41 and the top plate 42 is set to 30 mm, and the length of the bottom plate 41, the pressure plate 43 and the top plate 42 is set to 450 mm.

[0040] In order to ensure that the compression spring 45 does not deviate during the expansion and contraction process, the clamping mechanism 4 also includes a connecting column 46, one end of which is connected to the bottom plate 41, and the other end passes through the compression spring 45 and the pressure plate 43 to connect to the top plate 42, so that the compression spring 45 can be stably expanded and contracted up and down according to the direction of the connecting column 46. In addition, the provision of the connecting column 46 can also facilitate the assembly of the spring during production and assembly, that is, when the spring needs to be assembled, the spring can be passed through the connecting column 46. In order to prevent the connecting column 46 from not being able to pass through the middle of the compression spring 45, the inner diameter of the compression spring 45 needs to be larger than the diameter of the connecting column 46.

[0041] In order to ensure that the clamping mechanism 4 will not deviate from the direction and to facilitate the transmission mechanism 5 to drive the clamping mechanism 4 to move, at least one of the two ends of the clamping mechanism 4 is provided with a guide block, and the workbench 1 is provided with a guide groove in parallel to the conveying direction of the film 6 in cooperation with the guide block. The guide block and the guide groove are not drawn in the figure. In fact, the transmission mechanism 5 can also play a guiding role for the clamping mechanism 4. The guide block and the guide groove can facilitate assembly while providing a guiding role. Through the cooperation of the guide block and the guide groove, the clamping mechanism 4 is constrained by the guide groove, and the clamping mechanism 4 accurately conveys the film 6 to the target cutting position according to the conveying direction of the film 6, solving the problem of the deviation of the conveying direction of the film 6. The width of the guide groove is preferably set to 25mm.

[0042] In order to ensure that the film 6 can be cut efficiently, the cutting mechanism 2 includes a cutting knife 21 connected to the piston end of the first cylinder 24 and a knife pad 22 for being arranged on the workbench 1 below the cutting knife 21. The cutting knife 21 is used to cut the film 6. The cutting knife 21 is driven downward by the piston end of the first cylinder 24, and the cooperation between the cutting knife 21 and the knife pad 22 completes the efficient cutting of the film 6. Preferably, the cutting knife 21 is a bevel steel knife.

[0043] In order to facilitate the installation of the first cylinder 24, the device also includes a gantry frame for fixing above the workbench 1, and the first cylinder 24 is fixed on the gantry frame.

[0044] In order to ensure that the cutting knife 21 can easily complete the cutting of the film 6, the cutting mechanism 2 also includes a second cylinder 25 for fixing on the gantry, and the piston end of the second cylinder 25 is connected with a pressure strip 23, which is used to cooperate with the workbench 1 to press the film 6. The pressure strip 23 is parallel to the cutting knife 21 and is arranged close to the cutting surface. The film 6 is stabilized on the workbench 1 by the pressure strip 23, which is convenient for the cutting knife 21 to complete the cutting.

[0045] like Figure 3As shown, the first cylinder 24 includes two synchronously arranged ones, and the telescopic ends of the two first cylinders 24 are fixedly connected to the cutting knife 21. The two cylinders can ensure that the cutting force of the cutting knife 21 is large enough and the cutting knife 21 can cut downward stably. Similarly, the second cylinder 25 includes two synchronously arranged ones, and the telescopic ends of the two second cylinders 25 are fixedly connected to the knife pressure strip 23, so as to ensure that the pressure strip 23 can stably press the film 6.

[0046] like Figure 1 , Figure 2 As shown, in order to facilitate the collection of the cut film 6, a film storage slot 7 is also included on the workbench 1 below the cutting mechanism 2. The cut film 6 is stored in the film storage slot 7 to avoid the situation where the cut film 6 is placed randomly and easily damaged. The film storage slot 7 is provided with a 45-degree slope relative to the horizontal plane of the workbench 1 to buffer the film 6 that falls after cutting and ensure that the cut film 6 smoothly enters the film storage slot 7. Preferably, the bottom width of the film storage slot 7 is set to 150 mm.

[0047] In order to improve the transmission stability of the transmission mechanism, the lead screw 51 of the transmission mechanism adopts a T-shaped double-track precision lead screw.

[0048] In addition, the device also includes a controller 8 display screen, and the pages and fonts of the controller 8 display screen use colors with large contrast, such as black and red. In order to protect the safety during operation, the device also includes a photoelectric sensor protection device to prevent accidents, wherein the photoelectric sensor protection device uses an infrared sensor to detect accidents.

[0049] The use process of the automatic cutting device for industrial X-ray films is as follows: take out the uncut industrial film 6, change the clamping space by adjusting the handle screw 47, place one end of the film 6 in the clamping space, screw down the handle screw 47 to complete the clamping of the film 6, and input the cutting requirements into the controller 8. The controller 8 controls the screw motor 53 to start according to the cutting requirements. When the position signal sent back by the position sensor 3 meets the requirements, the controller 8 controls the screw motor 53 to stop moving forward; the controller 8 controls the first cylinder 24 to start, and the second cylinder 25 is also started synchronously. The first cylinder 24 and the second cylinder 25 respectively drive the cutting knife 21 and the pressure strip 23 to move downward to complete the cutting of the film 6.

[0050] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An automatic cutting device for industrial radiographic films, comprising a workbench (1) and a cutting mechanism (2) arranged at one end of the workbench (1) and used for cutting films (6), characterized in that: The other end of the workbench (1) is provided with a clamping mechanism (4) for clamping the film (6), and the bottom of the workbench (1) is provided with a transmission mechanism (5) for driving the clamping mechanism (4) to a cutting position; The clamping mechanism (4) comprises a bottom plate (41), a top plate (42) and a pressing plate (43) arranged between the bottom plate (41) and the top plate (42) and movable up and down, wherein the bottom plate (41) and the top plate (42) are connected at a side away from the cutting mechanism (2) by a connecting member (44), and a clamping space formed between the bottom plate (41) and the pressing plate (43) is used for clamping the film (6); The controller (8) is respectively connected to the transmission mechanism (5) and the position sensor (3) via electrical signals.

2. An automatic cutting device for industrial X-ray films according to claim 1, characterized in that: Compression springs (45) are provided at both ends between the bottom plate (41) and the pressure plate (43) for realizing the upward movement of the pressure plate (43); and a handle screw (47) is also provided passing through the middle of the top plate (42) for supporting the pressure plate (43) for realizing the downward movement of the pressure plate (43).

3. An automatic cutting device for industrial X-ray films according to claim 2, characterized in that: It also includes a connecting column (46), one end of which is connected to the bottom plate (41), and the other end of which passes through a compression spring (45) and a pressure plate (43) to be connected to the top plate (42), and the inner diameter of the compression spring (45) is larger than the diameter of the connecting column (46).

4. The automatic cutting device for industrial X-ray film according to claim 1, characterized in that: The transmission mechanism (5) comprises a lead screw (51), a slider (52) and a lead screw motor (53) for driving the lead screw (51); the lead screw (51) is slidably connected to the slider (52); the lead screw (51) is fixed on the workbench (1) perpendicular to the cutting surface direction of the cutting mechanism (2); the slider (52) is fixedly arranged below the clamping mechanism (4); and the controller (8) is electrically signal-connected to the lead screw motor (53).

5. The automatic cutting device for industrial X-ray films according to claim 1, characterized in that: The cutting mechanism (2) comprises a first cylinder (24), a cutting knife (21) connected to the piston end of the first cylinder (24), and a knife pad (22) arranged on a workbench (1) below the cutting knife (21); the cutting knife (21) is used for cutting a film (6).

6. An automatic cutting device for industrial X-ray films according to claim 5, characterized in that: It also includes a gantry frame for fixing above the workbench (1), and the first cylinder (24) is fixed on the gantry frame.

7. An automatic cutting device for industrial X-ray films according to claim 6, characterized in that: The cutting mechanism (2) further comprises a second cylinder (25) for fixing on the gantry, the piston end of the second cylinder (25) is connected to a pressure strip (23) for cooperating with the workbench to press the film (6), and the pressure strip (23) is parallel to the cutting knife (21) and arranged close to the cutting surface.

8. An automatic cutting device for industrial X-ray films according to claim 7, characterized in that: The first cylinder (24) includes two synchronously arranged ones, and the telescopic ends of the two first cylinders (24) are fixedly connected to the cutting knife (21); the second cylinder (25) includes two synchronously arranged ones, and the telescopic ends of the two second cylinders (25) are fixedly connected to the knife pressure strip (23).

9. An automatic cutting device for industrial X-ray films according to claim 1, characterized in that: It also includes a film storage groove (7) arranged on the workbench (1) below the cutting mechanism (2).

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