Plastic film crack detection device

Abstract

The utility model discloses a plastic film crack detection device, comprising a mounting plate and a lifting plate, wherein the middle upper parts of two groups of mounting plates are fixedly connected with a first sliding rod, the top of the first sliding rod is fixedly connected with the first mounting plate, the upper part of the other end of the first mounting plate is fixedly connected with a first motor, the bottom end of the first motor is fixedly connected with a first lead screw, the lifting plate on the right side is meshingly connected with the outer side of the first lead screw, two groups of third mounting plates are fixedly connected between the lifting plates on both sides, two groups of lower pressure rods are fixedly connected between the upper parts of the third mounting plates, the lower parts of the third mounting plates are rotatably connected with a third lead screw, the outer side of the third lead screw is meshingly connected with a second sliding seat, the upper parts of the second sliding seat are fixedly connected with support seats on both sides, the support seats are slidably connected with an outer sliding seat inside, and the outer sliding seat is slidably connected with an inner sliding seat inside, so as to prevent the cracks from being blocked due to wrinkles in the plastic film, thereby making the crack detection result inaccurate.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film production, in particular to a plastic film crack detection device. Background Art

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a coating layer. Plastic packaging and plastic packaging products occupy an increasingly larger share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical industry and other fields, among which food packaging accounts for the largest proportion, such as beverage packaging and frozen food packaging.

[0003] The existing detection device stretches the plastic film by setting multiple sets of rotating rollers on both sides of the film to ensure that the plastic film can be flattened. However, while flattening, wrinkles parallel to the direction of movement will be generated in the plastic film. Cracks may exist where the wrinkles are folded, which cannot be detected by the device. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic film crack detection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic film crack detection device, comprising a mounting plate and a lifting plate, wherein the middle upper parts of the two groups of mounting plates are fixedly connected with a first sliding rod, the top of the first sliding rod is fixedly connected with the first mounting plate, the upper part of the other end of the first mounting plate is fixedly connected with a first motor, the bottom end of the first motor penetrates the first mounting plate and is fixedly connected with a first lead screw, the bottom end of the first lead screw is rotatably connected to the upper part of the mounting plate, the lifting plate on the left side is slidably connected to the outer side of the first sliding rod, the lifting plate on the right side is meshingly connected with the outer side of the first lead screw, two groups of third mounting plates are fixedly connected between the lifting plates on both sides, two groups of lower pressure rods are fixedly connected between the upper parts of the third mounting plates, the lower parts of the third mounting plates are rotatably connected between the third lead screw, and the upper part of one side of the mounting plate is provided with a connecting The transmission gear of the present invention is a gear which is fastened to the drive gear of the driving gear, and the gear is connected with the transmission gear of the driving gear to the driving gear of the driving gear.

[0006] Preferably, a second mounting plate is fixedly connected to the upper parts of both sides of the two groups of lifting plates, a second sliding rod is fixedly connected between the second mounting plates, a first sliding seat is slidably connected to the outer side of the second sliding rod, a detector is fixedly connected to the top of the first sliding seat, a second lead screw is meshingly connected inside the first sliding seat, and one end of the second lead screw penetrates the second mounting plate and is fixedly connected to the upper rotating shaft.

[0007] Preferably, two groups of limit plates are fixedly connected to the outer sides of the upper rotating shaft and the lower rotating shaft, and the two groups of limit plates are respectively arranged on both sides of the transmission belt.

[0008] Preferably, a fourth lead screw is rotatably connected to the inner wall of the middle part of the support seat, the top end of the fourth lead screw penetrates the support seat and is fixedly connected to a rotating cap, the outer side of the fourth lead screw is meshingly connected to a moving block, and the top of the moving block is fixedly connected to the outer sliding seat.

[0009] Preferably, the outer sliding seat is internally slidably connected to a fixing plate, the lower part of the fixing plate is fixedly connected to a spring, the lower part of the spring is fixedly connected to the inner wall of the outer sliding seat, the lower part of the fixing plate is fixedly connected to a limiting rod, the spring is sleeved on the outside of the limiting rod, and the upper part of the fixing plate is fixedly connected to the inner sliding seat.

[0010] Preferably, two groups of fixing cylinders are rotatably connected to the middle of the mounting plates on both sides, a feeding cylinder is rotatably connected to the lower part of one side of the two groups of mounting plates, and a collecting cylinder is rotatably connected to the lower part of the other side of the two groups of mounting plates.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model cooperates with a first motor, a lifting plate, a third mounting plate, a lower pressure rod, a second motor, a second lead screw, a first sliding seat, a detector, an upper rotating shaft, a lower rotating shaft, a third lead screw, a second sliding seat, a supporting seat, an outer sliding seat, an inner sliding seat, a fixed plate, and a pressure wheel. The first motor drives the lifting plate to move up and down, and drives the lower pressure rod to move downward through the third mounting plate to press the upper part of the plastic film and flatten the long side of the plastic film. The second motor drives the second lead screw to rotate through the upper rotating shaft to move the first sliding seat, and the detector detects the flattened plastic film. The upper rotating shaft drives the lower rotating shaft to rotate through the transmission belt, and drives the third lead screw to rotate, so that the second sliding seat moves with the first sliding seat, and drives the pressure wheel to move along the lower part of the plastic film through the supporting seat, the outer sliding seat, the inner sliding seat and the fixed plate to flatten the narrow side of the plastic film, so as to prevent the plastic film from being wrinkled and causing the crack to be blocked, which makes the crack detection result inaccurate.

[0013] 2. The utility model also cooperates with the use of a rotating cap, a fourth lead screw, a moving block, an outer sliding seat, a spring, a fixed sheet, an inner sliding seat, a fixed plate, and a pressure wheel. By rotating the rotating cap, the fourth lead screw rotates to drive the moving block to move up and down, thereby adjusting the extension length of the outer sliding seat. The spring pushes the fixed sheet to move upward, and drives the pressure wheel to cling to the lower part of the plastic film through the inner sliding seat and the fixed plate, ensuring that the pressure wheel clings to the plastic film while not slipping the plastic film. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0016] Figure 3 This is a schematic diagram of the transmission belt structure of the utility model from the third viewing angle;

[0017] Figure 4 This is a cross-sectional view of the support seat structure from the fourth viewing angle of the utility model.

[0018] In the figure: 1, mounting plate; 2, first sliding rod; 3, first mounting plate; 4, first motor; 5, first lead screw; 6, lifting plate; 7, second mounting plate; 8, second lead screw; 9, second sliding rod; 10, first sliding seat; 11, detector; 12, third mounting plate; 13, third lead screw; 14, third sliding rod; 15, lower pressure rod; 16, fourth mounting plate; 17, second motor; 18, connecting groove; 19, lower rotating shaft; 20, upper rotating shaft; 21, limiting plate; 22, transmission belt; 23, second sliding seat; 24, supporting seat; 25, outer sliding seat; 26, inner sliding seat; 27, fixing plate; 28, pressure wheel; 29, fourth lead screw; 30, rotating cap; 31, moving block; 32, fixing plate; 33, limiting rod; 34, spring; 35, feeding barrel; 36, collecting barrel; 37, fixing barrel. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] See also Figure 1-4The utility model provides a technical solution: a plastic film crack detection device, including a mounting plate 1 and a lifting plate 6. A first sliding rod 2 is fixedly welded to the upper part of the middle side of the two sets of mounting plates 1. A first mounting plate 3 is fixedly welded to the top of the first sliding rod 2. A first motor 4 is installed on the upper flange of the other end of the first mounting plate 3. The bottom end of the first motor 4 penetrates through the flange of the first mounting plate 3 to install a first lead screw 5. The bottom end of the first lead screw 5 is rotatably connected to the upper part of the mounting plate 1. The left lifting plate 6 is slidably installed on the outer side of the first sliding rod 2. The right lifting plate 6 is meshed and connected with the outer side of the first lead screw 5. Two sets of third mounting plates 12 are fixedly welded between the lifting plates 6 on both sides, and two sets of lower pressure rods 15 are fixedly welded between the upper parts of the third mounting plates 12. The first motor 4 drives the lifting plate 6 to move up and down, and drives the lower pressure rod 15 to move downward through the third mounting plate 12, pressing the upper part of the plastic film, which is conducive to flattening the plastic film. A third lead screw 13 is rotatably installed between the lower parts of the third mounting plates 12. A connecting groove 18 is opened on the upper part of one side of the mounting plate 1. One end of the third lead screw 13 penetrates into the connecting groove 18 and is fixedly welded to the lower rotating shaft 19. The outer side of the lower rotating shaft 19 is sleeved with a transmission The transmission belt 22 is provided with an upper rotating shaft 20 on the inner side of the upper part of the transmission belt 22. A fourth mounting plate 16 is fixedly welded on the upper part of one side of the two sets of lifting plates 6. A second motor 17 is mounted on the outer flange of the fourth mounting plate 16. The power end of the second motor 17 is flange-mounted with the upper rotating shaft 20. A second sliding seat 23 is meshedly connected to the outer side of the third lead screw 13. A third sliding rod 14 is fixedly welded between the third mounting plates 12 on both sides. The third sliding rod 14 is slidably mounted on the inner side of the second sliding seat 23. Support seats 24 are fixedly welded on both sides of the upper part of the second sliding seat 23. The inner side of the support seat 24 is slidably mounted. An outer sliding seat 25 is provided, an inner sliding seat 26 is slidably installed inside the outer sliding seat 25, a fixing plate 27 is fixedly welded on the top of the inner sliding seat 26, and a pressing wheel 28 is rotatably installed between the fixing plates 27 on both sides. The second motor 17 drives the upper rotating shaft 20 to rotate, drives the lower rotating shaft 19 to rotate through the transmission belt 22, drives the third lead screw 13 to rotate, and makes the second sliding seat 23 move along the third sliding rod 14, and drives the fixing plate 27 to move through the support seat 24, the outer sliding seat 25 and the inner sliding seat 26, so that the pressing wheel 28 presses the lower part of the plastic film to flatten the plastic film;

[0021] The upper parts of both sides of the two sets of lifting plates 6 are fixedly welded with second mounting plates 7, and second sliding rods 9 are fixedly welded between the second mounting plates 7. A first sliding seat 10 is slidably mounted on the outer side of the second sliding rod 9, and a detector 11 is fixedly welded on the top of the first sliding seat 10. A second lead screw 8 is meshedly connected inside the first sliding seat 10, and one end of the second lead screw 8 penetrates the second mounting plate 7 and is fixedly welded to the upper rotating shaft 20. The second motor 17 drives the second lead screw 8 to rotate, so that the first sliding seat 10 follows the second sliding rod 9. The movable seat 23 moves, and the detector 11 detects the flattened plastic film; two sets of limit plates 21 are fixedly welded on the outer sides of the upper rotating shaft 20 and the lower rotating shaft 19, and the two sets of limit plates 21 are respectively arranged on both sides of the transmission belt 22 to prevent the transmission belt 22 from sliding. A fourth lead screw 29 is rotatably installed on the inner wall of the middle part of the support seat 24, and a rotating cap 30 is fixedly welded on the top of the fourth lead screw 29 penetrating the support seat 24, and a moving block 31 is meshed and connected on the outer side of the fourth lead screw 29, and the top of the moving block 31 is fixedly welded with the outer sliding seat 25 Then, by rotating the rotating cap 30, the fourth lead screw 29 rotates and drives the moving block 31 to move up and down, so as to adjust the extension length of the outer sliding seat 25, thereby adjusting the pressing force of the pressing wheel 28; a fixing plate 32 is slidably installed inside the outer sliding seat 25, and a spring 34 is fixedly welded to the lower part of the fixing plate 32. The lower part of the spring 34 is fixedly welded to the inner wall of the outer sliding seat 25, and a limiting rod 33 is fixedly welded to the lower part of the fixing plate 32. The spring 34 is sleeved on the outer side of the limiting rod 33 to prevent the spring 34 from being twisted by force. The upper part of the fixed plate 32 is fixedly welded to the inner sliding seat 26, and the spring 34 pushes the fixed plate 32 to move upward, and pushes the pressing wheel 28 to move upward through the inner sliding seat 26, so that the pressing wheel 28 can be close to the lower part of the plastic film; two groups of fixed cylinders 37 are rotatably installed in the middle of the mounting plates 1 on both sides, a feeding cylinder 35 is rotatably installed at the lower part of one side of the two groups of mounting plates 1, and a collecting cylinder 36 is rotatably installed at the lower part of the other side of the two groups of mounting plates 1. The plastic film is output by the feeding cylinder 35, and is collected by the collecting cylinder 36 after being compressed by the fixed cylinder 37.

[0022] Working principle: When the utility model is in use, by rotating the rotating cap 30, the fourth lead screw 29 rotates to drive the moving block 31 to move up and down, thereby adjusting the extension length of the outer sliding seat 25, thereby adjusting the pressing force of the pressing wheel 28. When the plastic film is transported to between the fixed cylinders 37 on both sides, the first motor 4 drives the lifting plate 6 to move up and down, and drives the lower pressing rod 15 to move downward through the third mounting plate 12, pressing the upper part of the plastic film and flattening the long side of the plastic film. The second motor 17 drives the second through the upper rotating shaft 20. The lead screw 8 rotates to move the first sliding seat 10 along the second sliding rod 9, and the detector 11 detects the flattened plastic film. The upper rotating shaft 20 drives the lower rotating shaft 19 to rotate through the transmission belt 22, and drives the third lead screw 13 to rotate, so that the second sliding seat 23 moves along the third sliding rod 14 following the first sliding seat 10. The spring 34 pushes the fixed plate 32 to move upward, and pushes the pressure wheel 28 to move upward through the inner sliding seat 26 and the fixed plate 27, so that the pressure wheel 28 can be close to the lower part of the plastic film and flatten the narrow side of the plastic film.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants 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 other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic film crack detection device, comprising a mounting plate (1) and a lifting plate (6), characterized in that: The upper middle part of the two groups of mounting plates (1) is fixedly connected with a first sliding rod (2), the top of the first sliding rod (2) is fixedly connected with a first mounting plate (3), the upper other end of the first mounting plate (3) is fixedly connected with a first motor (4), the bottom end of the first motor (4) penetrates the first mounting plate (3) and is fixedly connected with a first lead screw (5), the bottom end of the first lead screw (5) is rotatably connected with the upper part of the mounting plate (1), the lifting plate (6) on the left side is slidably connected to the outer side of the first sliding rod (2), and the lifting plate (6) on the right side is slidably connected to the outer side of the first sliding rod (2). The lifting plate (6) is meshingly connected with the outer side of the first screw (5), two groups of third mounting plates (12) are fixedly connected between the lifting plates (6) on both sides, two groups of lower pressure rods (15) are fixedly connected between the upper parts of the third mounting plates (12), and a third screw (13) is rotatably connected between the lower parts of the third mounting plates (12). A connecting groove (18) is opened on the upper part of one side of the mounting plate (1), and one end of the third screw (13) penetrates into the connecting groove (18) and is fixedly connected to a lower rotating shaft (19). The lower rotating shaft (19) is sleeved with a transmission belt (22) on the outer side, and the upper rotating shaft (20) is sleeved on the inner side of the upper part of the transmission belt (22). The upper part of one side of the two sets of lifting plates (6) is fixedly connected with a fourth mounting plate (16), and the outer side of the fourth mounting plate (16) is fixedly connected with a second motor (17), and the power end of the second motor (17) is fixedly connected with the upper rotating shaft (20). The outer side of the third lead screw (13) is meshedly connected with a second sliding seat (23), and the third mounting plates (12) on both sides are connected. A third sliding rod (14) is fixedly connected, and the third sliding rod (14) is slidably connected to the inner side of the second sliding seat (23). The upper two sides of the second sliding seat (23) are fixedly connected with support seats (24). The support seat (24) is slidably connected to an outer sliding seat (25) inside. The outer sliding seat (25) is slidably connected to an inner sliding seat (26) inside. The top of the inner sliding seat (26) is fixedly connected with a fixed plate (27). A pressure wheel (28) is rotatably connected between the fixed plates (27) on both sides.

2. A plastic film crack detection device according to claim 1, characterized in that: The upper parts of both sides of the two groups of lifting plates (6) are fixedly connected with second mounting plates (7), the second mounting plates (7) are fixedly connected with second sliding rods (9), the outer side of the second sliding rods (9) is slidably connected with a first sliding seat (10), the top of the first sliding seat (10) is fixedly connected with a detector (11), the first sliding seat (10) is internally meshed with a second lead screw (8), one end of the second lead screw (8) penetrates the second mounting plate (7) and is fixedly connected with an upper rotating shaft (20).

3. A plastic film crack detection device according to claim 1, characterized in that: Two groups of limit plates (21) are fixedly connected to the outer sides of the upper rotating shaft (20) and the lower rotating shaft (19), and the two groups of limit plates (21) are respectively arranged on both sides of the transmission belt (22).

4. A plastic film crack detection device according to claim 1, characterized in that: A fourth lead screw (29) is rotatably connected to the inner wall of the middle part of the support seat (24); the top end of the fourth lead screw (29) penetrates the support seat (24) and is fixedly connected to a rotating cap (30); the outer side of the fourth lead screw (29) is meshingly connected to a moving block (31); the top of the moving block (31) is fixedly connected to the outer sliding seat (25).

5. A plastic film crack detection device according to claim 1, characterized in that: The outer sliding seat (25) is slidably connected to a fixing plate (32) inside, the fixing plate (32) is fixedly connected to a spring (34) at the bottom, the spring (34) is fixedly connected to the inner wall of the outer sliding seat (25) at the bottom, the fixing plate (32) is fixedly connected to a limiting rod (33) at the bottom, the spring (34) is sleeved on the outside of the limiting rod (33), and the fixing plate (32) is fixedly connected to the inner sliding seat (26) at the top.

6. A plastic film crack detection device according to claim 1, characterized in that: Two groups of fixing cylinders (37) are rotatably connected to the middle of the mounting plates (1) on both sides, a feeding cylinder (35) is rotatably connected to the lower part of one side of the two groups of mounting plates (1), and a collecting cylinder (36) is rotatably connected to the lower part of the other side of the two groups of mounting plates (1).

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