Adjustable stop device for EVA cutting and laying machine

Abstract

The utility model relates to EVA material processing equipment technical field discloses a kind of adjustable limiting device for EVA cutting laying machine, including bottom plate and support leg, the bottom plate upper portion is provided with processing structure, the processing structure includes cutting mechanism and auxiliary mechanism, the cutting mechanism includes mounting bracket, driving motor one, threaded rod one, moving plate, cutting knife, the mounting bracket side is interconnected with driving motor one end, the driving motor one output end is interconnected with threaded rod one end, this adjustable limiting device for EVA cutting laying machine has realized the cutting work of EVA material to be able to quickly and conveniently, the vertical adjustment of the electric telescopic rod one+ telescopic rod+spring, can accurately adapt to different width, the EVA material of thickness, driving motor two are driven guide roller one spacing reduction, only need to adjust motor reversely to expand spacing, to be able to better use.

Description

Technical Field

[0001] This utility model belongs to the technical field of EVA material processing equipment, specifically, it relates to an adjustable limiting device for an EVA cutting and laying machine. Background Technology

[0002] EVA material is a thermoplastic polymer material made by copolymerization of ethylene and vinyl acetate (VA). Its core properties vary with the VA content (usually 5%-40%). The material has both flexibility and strength and is the core raw material for waterproof membranes and pipe insulation layers in the building materials industry. When processing EVA material, a cutting and laying machine is required for cutting. The limiting device is the core component to ensure the cutting accuracy and the accuracy of the laying position.

[0003] The limiting devices of existing EVA cutting and laying machines are mostly fixed structures that can only be used with EVA materials of a single specification. If EVA materials of different widths and lengths need to be processed, the limiting devices of the corresponding specifications need to be disassembled and replaced, which is cumbersome and time-consuming, resulting in low processing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable limiting device for an EVA cutting and laying machine to solve the problems mentioned in the background art.

[0005] An adjustable limiting device for an EVA cutting and laying machine includes a base plate and support legs, with a processing structure provided above the base plate; The processing structure includes a cutting mechanism and an auxiliary mechanism; The cutting mechanism includes a mounting frame, a drive motor, a threaded rod, a moving plate, and a cutting blade. One side of the mounting frame is connected to one end of the drive motor, and the output end of the drive motor is connected to one end of the threaded rod. The outer wall of the threaded rod is threadedly connected to the inner wall of the moving plate. The bottom of the moving plate is connected to the top of the cutting blade. A connecting plate is fixedly installed on one side of the base plate, and a drive motor is fixedly installed on one side of the connecting plate. A threaded rod is fixedly installed on the output end of the drive motor. A sliding plate is threadedly connected to the outer wall of the threaded rod. A bearing plate is fixedly installed on the top of the sliding plate. An electric telescopic rod is fixedly installed on the inner wall of the bearing plate. A fixing plate is fixedly installed on the bottom of the electric telescopic rod. A telescopic rod is fixedly installed on the bottom of the fixing plate. A connecting plate is fixedly installed on the bottom of the telescopic rod. A guide roller is rotatably connected to the inner side of the connecting plate. A conveying roller is rotatably connected to the inner side of the base plate.

[0006] In a preferred embodiment of this utility model, the top of the mounting frame is provided with a movable groove, the outer wall of the movable plate is slidably connected to the inner wall of the movable groove, and the number of the first connecting plates is eight. The first connecting plates are symmetrically distributed on both sides of the base plate, so that the EVA material can be cut quickly and conveniently, and thus can be used better.

[0007] In a preferred embodiment of this utility model, the bearing plate is L-shaped, and there are four bearing plates. The bearing plates are symmetrically distributed on both sides of the base plate. A spring is fixedly installed between the top of the connecting plate and the bottom of the fixing plate, so that the EVA material can be quickly and conveniently guided and limited, and the position of the guide roller can be quickly and conveniently adjusted, thereby enabling better cutting.

[0008] In a preferred embodiment of this utility model, there are two guide rollers, which are symmetrically distributed above the base plate. There are several conveying rollers, which are symmetrically distributed inside the base plate. This allows for the rapid and convenient conveying of EVA material, which in turn enables better cutting.

[0009] In a preferred embodiment of this utility model, the auxiliary mechanism includes a guide plate, a bidirectional threaded rod, an adjusting plate, a limiting plate, and a second fixing plate. The inner side of the guide plate is rotatably connected to one end of the bidirectional threaded rod, the outer wall of the bidirectional threaded rod is threadedly connected to the inner wall of the adjusting plate, the top of the adjusting plate is connected to the bottom of the limiting plate, a winding roller is rotatably connected to the inner side of the limiting plate, the top of the base plate is connected to the bottom of the second fixing plate, a guide roller is rotatably connected to one side of the second fixing plate, an adjusting box is fixedly installed on the top of the base plate, an electric telescopic rod is fixedly installed on the inner wall of the adjusting box, a sliding plate is fixedly installed on the top of the electric telescopic rod, a support plate is fixedly installed on the top of the sliding plate, an mounting plate is fixedly installed on the top of the support plate, and a tensioning roller is rotatably connected to the inner side of the mounting plate.

[0010] In a preferred embodiment of this utility model, the top of the guide plate is provided with a sliding groove, the bottom of the adjusting plate is slidably connected to the inner wall of the sliding groove, and there are two guide rollers, which are symmetrically distributed on both sides of the tension roller, so as to quickly and conveniently transport EVA material and quickly and conveniently adjust the tension of EVA material, thereby enabling better cutting work.

[0011] In a preferred embodiment of this utility model, the bottom of the base plate is connected to the top of the support leg, the top of the base plate is connected to the bottom of the mounting frame, and the top of the base plate is connected to the bottom of the guide plate.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This adjustable limiting device for EVA cutting and laying machine enables quick and convenient cutting of EVA materials through the cutting mechanism. The vertical adjustment of "electric telescopic rod one + telescopic rod + spring" can accurately adapt to EVA materials of different widths and thicknesses. For example, when processing 100mm wide EVA waterproof rolls, the drive motor two drives the guide roller one to reduce the distance to 100mm; when processing 500mm wide insulation material, the distance can be increased by simply adjusting the motor in the opposite direction, thus enabling better use.

[0013] 2. This adjustable limiting device for EVA cutting and laying machine, through an auxiliary mechanism, enables the quick removal of used EVA rolls using a design of "bidirectional threaded rod + adjusting plate + limiting plate"; when installing new rolls, the limiting plate can be adjusted in the opposite direction to clamp the take-up roller for fixation, and the electric telescopic rod can drive the sliding plate to move the tension roller up and down. Combined with the auxiliary guidance of the guide roller, the tension of the EVA material can be precisely controlled.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the cutting mechanism of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the cutting mechanism of this utility model. Figure 2 ; Figure 5 This is a schematic diagram of the auxiliary mechanism of this utility model. Figure 1 ; Figure 6 This is a schematic diagram of the auxiliary mechanism of this utility model. Figure 2 .

[0016] In the diagram: 1. Base plate; 2. Support leg; 3. Cutting mechanism; 301. Mounting frame; 302. Drive motor one; 303. Threaded rod one; 304. Moving plate; 305. Cutting blade; 306. Connecting plate one; 307. Drive motor two; 308. Threaded rod two; 309. Sliding plate one; 310. Bearing plate; 311. Electric telescopic rod one; 312. Fixed plate one; 313. Telescopic rod; 314. 315. Connecting plate 2; 316. Guide roller 1; 4. Conveying roller; 5. Auxiliary mechanism; 401. Guide plate; 402. Bidirectional threaded rod; 403. Adjusting plate; 404. Limiting plate; 405. Fixing plate 2; 406. Guide roller 2; 407. Adjusting box; 408. Electric telescopic rod 2; 409. Sliding plate 2; 410. Support plate; 411. Mounting plate; 412. Tensioning roller; 413. Rewinding roller. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model. Example 1:

[0018] like Figures 1 to 6 As shown, an adjustable limiting device for an EVA cutting and laying machine includes a base plate 1 and a support leg 2, with a processing structure provided above the base plate 1. The processing structure includes a cutting mechanism 3 and an auxiliary mechanism 4; The cutting mechanism 3 includes a mounting frame 301, a drive motor 302, a threaded rod 303, a moving plate 304, and a cutting blade 305. One side of the mounting frame 301 is connected to one end of the drive motor 302, and the output end of the drive motor 302 is connected to one end of the threaded rod 303. The outer wall of the threaded rod 303 is threadedly connected to the inner wall of the moving plate 304. The bottom of the moving plate 304 is connected to the top of the cutting blade 305. A connecting plate 306 is fixedly installed on one side of the base plate 1, and a drive motor 307 is fixedly installed on one side of the connecting plate 306. 07 The output end is fixedly installed with a threaded rod 308. The outer wall of the threaded rod 308 is threadedly connected to a sliding plate 309. The top of the sliding plate 309 is fixedly installed with a bearing plate 310. The inner wall of the bearing plate 310 is fixedly installed with an electric telescopic rod 311. The bottom of the electric telescopic rod 311 is fixedly installed with a fixing plate 312. The bottom of the fixing plate 312 is fixedly installed with a telescopic rod 313. The bottom of the telescopic rod 313 is fixedly installed with a connecting plate 314. The inner side of the connecting plate 314 is rotatably connected with a guide roller 315. The inner side of the base plate 1 is rotatably connected with a conveying roller 316. In this embodiment, the top of the mounting bracket 301 is provided with a movable groove, the outer wall of the movable plate 304 is slidably connected to the inner wall of the movable groove, and there are eight connecting plates 306. The connecting plates 306 are symmetrically distributed on both sides of the base plate 1, so that the EVA material can be cut quickly and conveniently, and thus can be used better. Furthermore, the bearing plate 310 is L-shaped, and there are four bearing plates 310. The bearing plates 310 are symmetrically distributed on both sides of the base plate 1. A spring is fixedly installed between the top of the connecting plate 2 314 and the bottom of the fixing plate 1 312, so that the EVA material can be quickly and conveniently limited and guided, and the position of the guide roller 1 315 can be quickly and conveniently adjusted, thereby enabling better cutting work. Furthermore, there are two guide rollers 315, which are symmetrically distributed above the base plate 1. There are also several conveying rollers 316, which are symmetrically distributed inside the base plate 1. This allows for the rapid and convenient transport of EVA material, which in turn enables better cutting.

[0019] The quantitative operation steps of the cutting mechanism are taken as an example of "EVA waterproof membrane with 20% VA content, 5mm thickness, and 100mm width". Guide roller limit adjustment Lateral spacing setting: EVA width 100mm, guide roller spacing needs to be 100mm + 2mm redundancy to avoid edge friction. Initial spacing 500mm, so it needs to be reduced to 398mm. Threaded rod two pitch 0.8mm, drive motor two reduction ratio 5:1, step angle 1.8°. "Moving 1mm requires motor rotation 5 × (360 / 1.8) = 1000 steps", 398mm corresponds to 1000 × 398 = 398,000 steps. Set the motor to rotate clockwise 398,000 steps.

[0020] Accuracy verification: After adjustment, use a digital caliper to measure the gap error of the guide rollers. If the actual gap is 99.92mm and the deviation is -0.08mm, adjust the motor by 80 steps to 1000 steps / mm × 0.08mm until the gap is 102mm ± 0.05mm.

[0021] Vertical pressure adjustment: With an EVA thickness of 5mm, start the electric telescopic rod 311 and set the extension length to "initial distance 30mm - 5mm - 2mm spring pre-compression = 23mm". At this time, the spring is compressed by 2mm, and the pressure is 3N (1.5N / mm × 2mm). Use a pressure sensor to measure the pressure of the guide rollers on a pair of EVAs. The pressure should be 3±0.5N. If the pressure is insufficient, increase the extension of the telescopic rod by 0.3mm, and the pressure will increase by 0.45N.

[0022] Cutting blade position and cutting operation Cutting position calibration: The cutting length is set to 200mm, and the conveyor roller speed is 1m / min (16.67mm / s). The cutting blade needs to be started after the EVA has been conveyed for 200mm. The encoder provides feedback on the number of rotations of the conveyor roller with a diameter of 50mm, conveying 157mm per rotation. When the conveyor roller has rotated 1.27 times (200mm), the drive motor is triggered to move the cutting blade.

[0023] Cutting depth control: The EVA thickness is 5mm. The cutting blade needs to cut into the material by 5mm + 0.5mm to ensure a clean cut. The electric telescopic rod drives the cutting blade to descend by 5.5mm. After cutting, the depth of the cut is measured with a depth gauge and the error is ≤0.1mm. If the deviation exceeds the limit, the travel of the telescopic rod is finely adjusted.

[0024] When EVA material needs to be cut, the operator passes one end of the EVA material on the take-up roller 413 through the guide roller 406, tension roller 412, guide roller 315, and cutter 305 in sequence. The take-up roller 413 unwinds the material, and the conveyor roller 316 transports it. At this time, activating the electric telescopic rod 311 moves the fixed plate 312, which indirectly moves the guide roller 315, allowing it to contact the EVA material and provide limited transport. With continued movement, the guide roller 315 moves the connecting plate 314, which simultaneously compresses the telescopic rod 313 and the spring, thus providing better limiting and guiding. When adjustment of the guide is needed... When the guide roller 315 is in position, the drive motor 307 is started to drive the threaded rod 308 to rotate. The rotation of the threaded rod 308 drives the sliding plate 309 to move. The movement of the sliding plate 309 drives the bearing plate 310 to move. The movement of the bearing plate 310 indirectly drives the guide roller 315 to move. This allows for quick and convenient adjustment of the position of the guide roller 315, enabling better adjustment according to different specifications of EVA materials and better limiting and guiding. When cutting is required, the drive motor 302 is started to drive the threaded rod 303 to rotate. The rotation of the threaded rod 303 drives the moving plate 304 to move. The movement of the moving plate 304 drives the cutting blade 305 to move. The movement of the cutting blade 305 enables the cutting of EVA materials. Example 2:

[0025] Based on Embodiment 1, the auxiliary mechanism 4 includes a guide plate 401, a bidirectional threaded rod 402, an adjusting plate 403, a limiting plate 404, and a second fixing plate 405. The inner side of the guide plate 401 is rotatably connected to one end of the bidirectional threaded rod 402. The outer wall of the bidirectional threaded rod 402 is threadedly connected to the inner wall of the adjusting plate 403. The top of the adjusting plate 403 is connected to the bottom of the limiting plate 404. A winding roller 413 is rotatably connected to the inner side of the limiting plate 404. The top of the base plate 1 is connected to the bottom of the second fixing plate 405. A second guide roller 406 is rotatably connected to one side of the second fixing plate 405. An adjusting box 407 is fixedly installed on the top of the base plate 1. An electric telescopic rod 408 is fixedly installed on the inner wall of the adjusting box 407. A sliding plate 409 is fixedly installed on the top of the electric telescopic rod 408. A support plate 410 is fixedly installed on the top of the sliding plate 409. An mounting plate 411 is fixedly installed on the top of the support plate 410. A tensioning roller 412 is rotatably connected to the inner side of the mounting plate 411. In this embodiment, a sliding groove is provided on the top of the guide plate 401, and the bottom of the adjusting plate 403 is slidably connected to the inner wall of the sliding groove. There are two guide rollers 406, which are symmetrically distributed on both sides of the tension roller 412, so that the EVA material can be conveyed quickly and conveniently, and the tension of the EVA material can be adjusted quickly and conveniently, thereby enabling better cutting work. Furthermore, the bottom of the base plate 1 is connected to the top of the support leg 2, the top of the base plate 1 is connected to the bottom of the mounting bracket 301, and the top of the base plate 1 is connected to the bottom of the guide plate 401.

[0026] The auxiliary mechanism quantifies the operation steps using "EVA insulation layer roll material with 30% VA content and a width of 500mm" as an example: Take-up roll assembly / disassembly and unwinding adjustment Take-up roller disassembly: Rotate the bidirectional threaded rod 402 to drive the adjusting plate 403 to move the limiting plate 404 along the guide plate sliding groove. Adjust the stroke by 50mm to ensure that the limiting plate is disengaged from the winding roller shaft head. At this time, the winding roller can be directly removed. The weight is ≤5kg. The whole process takes ≤1 minute.

[0027] New roll installation: Place a 500mm wide EVA roll onto the take-up roller, and rotate the double-threaded rod in the opposite direction to make the limit plate fit the take-up roller shaft head with a gap of ≤0.1mm. Rotate the take-up roller by hand with a rotation resistance of ≤2N. Once there is no jamming, you can start unwinding.

[0028] Tension adjustment is compatible with soft EVA with 30% VA content. Tension setting: EVA with 30% VA content is highly flexible and suitable for a tension of 8-10N. Start the electric telescopic rod 408, set the extension length to 80mm to raise the tension roller by 80mm, and use a tension sensor to measure the EVA material tension; it should be 9±0.5N.

[0029] Dynamic adjustment: During unwinding, if the EVA wrinkles and the tension is insufficient, increase the extension of the telescopic rod by 5mm to increase the tension by 1.5N; if the tension is too high due to stretching deformation, shorten the extension by 3mm to reduce the tension by 0.9N, ensuring that the tension is stable at 8-10N.

[0030] Calibration and safety maintenance measures: The cutting accuracy calibration method ensures an error of ≤0.5mm. Lateral cutting position calibration Take a standard calibration ruler with a length of 1000mm and an accuracy of ±0.01mm, and fix it on the conveyor roller; Start the cutting blade to cut the calibration ruler. Use a digital caliper to measure the length error of the calibration ruler after cutting. If the error is ≤0.05mm, adjust by 100 steps for every 0.01mm deviation using the drive motor.

[0031] Longitudinal limit calibration Take a standard EVA sample with a width of 100mm and convey it through the guide roller; The gap between the two sides of the sample and the first guide roller should be ≤0.05mm when measured with a laser rangefinder. If the gap is uneven, adjust the second drive motor by 0.01mm on each side for 10 steps.

[0032] When EVA material needs to be cut, the operator passes one end of the EVA material on the take-up roller 413 through the guide roller 406, tension roller 412, guide roller 315, and cutting blade 305 in sequence. The EVA material is unwound by the take-up roller 413 and conveyed by the guide roller 406. When the tension of the EVA material needs to be adjusted, the electric telescopic rod 408 is activated, which moves the sliding plate 409. The movement of the sliding plate 409 moves the support plate 410, and the movement of the support plate 410 moves the safety device. The mounting plate 411 moves, which in turn moves the tension roller 412, allowing for quick and easy adjustment of the position of the tension roller 412 and thus the tension of the EVA material. When the take-up roller 413 needs to be disassembled and replaced, the adjusting plate 403 is moved by rotating the bidirectional threaded rod 402. The moving adjusting plate 403 then moves the limiting plate 404, which moves away from the take-up roller 413, allowing the take-up roller 413 to be disassembled. When installation is required, the above steps are repeated in reverse.

Claims

1. An adjustable limiting device for an EVA cutting and laying machine, comprising a base plate (1) and supporting legs (2), characterized in that: A processing structure is provided above the base plate (1); The processing structure includes a cutting mechanism (3) and an auxiliary mechanism (4). The cutting mechanism (3) includes a mounting bracket (301), a drive motor (302), a threaded rod (303), a moving plate (304), and a cutting blade (305). One side of the mounting bracket (301) is connected to one end of the drive motor (302), and the output end of the drive motor (302) is connected to one end of the threaded rod (303). The outer wall of the threaded rod (303) is threadedly connected to the inner wall of the moving plate (304). The bottom of the moving plate (304) is connected to the top of the cutting blade (305). A connecting plate (306) is fixedly installed on one side of the base plate (1), and a drive motor (307) is fixedly installed on one side of the connecting plate (306). 307) A threaded rod two (308) is fixedly installed at the output end. A sliding plate one (309) is threadedly connected to the outer wall of the threaded rod two (308). A bearing plate (310) is fixedly installed at the top of the sliding plate one (309). An electric telescopic rod one (311) is fixedly installed on the inner wall of the bearing plate (310). A fixing plate one (312) is fixedly installed at the bottom of the electric telescopic rod one (311). A telescopic rod (313) is fixedly installed at the bottom of the fixing plate one (312). A connecting plate two (314) is fixedly installed at the bottom of the telescopic rod (313). A guide roller one (315) is rotatably connected to the inner side of the connecting plate two (314). A conveying roller (316) is rotatably connected to the inner side of the base plate (1).

2. The adjustable limiting device for an EVA cutting and laying machine according to claim 1, characterized in that: The mounting bracket (301) has a movable groove on its top. The outer wall of the movable plate (304) is slidably connected to the inner wall of the movable groove. There are eight connecting plates (306), which are symmetrically distributed on both sides of the base plate (1).

3. The adjustable limiting device for an EVA cutting and laying machine according to claim 1, characterized in that: The bearing plate (310) is L-shaped, and there are four bearing plates (310). The bearing plates (310) are symmetrically distributed on both sides of the base plate (1). A spring is fixedly installed between the top of the connecting plate two (314) and the bottom of the fixing plate one (312).

4. An adjustable limiting device for an EVA cutting and laying machine according to claim 1, characterized in that: There are two guide rollers (315), which are symmetrically distributed above the base plate (1). There are several conveying rollers (316), which are symmetrically distributed inside the base plate (1).

5. An adjustable limiting device for an EVA cutting and laying machine according to claim 1, characterized in that: The auxiliary mechanism (4) includes a guide plate (401), a bidirectional threaded rod (402), an adjusting plate (403), a limiting plate (404), and a second fixing plate (405). The inner side of the guide plate (401) is rotatably connected to one end of the bidirectional threaded rod (402). The outer wall of the bidirectional threaded rod (402) is threadedly connected to the inner wall of the adjusting plate (403). The top of the adjusting plate (403) is connected to the bottom of the limiting plate (404). A take-up roller (413) is rotatably connected to the inner side of the limiting plate (404). The top of the base plate (1) is connected to the bottom of the second fixing plate (405). The two plates are interconnected. One side of the fixed plate (405) is rotatably connected to the guide roller (406). The top of the base plate (1) is fixedly installed with the adjustment box (407). The inner wall of the adjustment box (407) is fixedly installed with the electric telescopic rod (408). The top of the electric telescopic rod (408) is fixedly installed with the sliding plate (409). The top of the sliding plate (409) is fixedly installed with the support plate (410). The top of the support plate (410) is fixedly installed with the mounting plate (411). The inner side of the mounting plate (411) is rotatably connected with the tension roller (412).

6. An adjustable limiting device for an EVA cutting and laying machine according to claim 5, characterized in that: The guide plate (401) has a sliding groove at the top, and the bottom of the adjusting plate (403) is slidably connected to the inner wall of the sliding groove. There are two guide rollers (406), which are symmetrically distributed on both sides of the tension roller (412).

7. An adjustable limiting device for an EVA cutting and laying machine according to claim 1, characterized in that: The bottom of the base plate (1) is connected to the top of the support leg (2), the top of the base plate (1) is connected to the bottom of the mounting bracket (301), and the top of the base plate (1) is connected to the bottom of the guide plate (401).

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