A winding device for EVA sheet for automobile accessories

Abstract

The application relates to the field of EVA sheet winding, and discloses a winding device for EVA sheet used for automobile accessories, which comprises a device box, a winding motor and a winding roller. A placing groove is formed in one side of the top of the device box, and a pressure sensor is fixedly installed on the outer periphery of the tensioning roller and one side of the top of the pressing plate. The pressure sensor on one side of the two sets of pressing plates can sense the tensioning force of the winding sheet, a second adjusting motor drives the second lead screw to rotate, the two sets of arc-shaped pressing plates can flexibly adjust the interval according to the tensioning force of the winding EVA sheet, the pressing force during the winding of the EVA sheet is flexibly adjusted, the pressure sensor on the top of the outer periphery of the tensioning roller can further monitor the tensioning force of the sheet on the top of the outer periphery of the tensioning roller, the height of the tensioning roller can be flexibly adjusted, the EVA sheet between the two sets of pressing plates on one side of the inner wall of the device box is further tensioned, and the tensioning force during the winding of the EVA sheet is precisely adjusted.

Description

Technical Field

[0001] This invention relates to the field of EVA sheet winding technology, specifically to a winding device for EVA sheets used in automotive parts. Background Technology

[0002] EVA material can be processed into different shapes. EVA foam processing can be divided into six processes: sheet, roll, gluing, backing, molding and embossing. When EVA material is processed into sheets, it can be used for automotive parts. After the sheets are processed, they need to be wound up by a winding device.

[0003] In the prior art, when EVA sheets are wound up, the winding rollers are not easy to quickly detach from the winding device, which affects the production efficiency of sheet winding. When EVA sheets are wound up, the winding device cannot flexibly adjust the tension of the sheet according to the sheet thickness, resulting in the sheet being wound either too tight or too loose. Summary of the Invention

[0004] The purpose of this invention is to provide a winding device for EVA sheets used in automotive parts, in order to solve the problems that the winding rollers of EVA sheets are not easy to quickly detach from the winding device, which affects the winding production efficiency, and that the winding device cannot flexibly adjust the tension of the sheet according to the sheet thickness during the winding process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a winding device for EVA sheets used in automotive parts, comprising a device box, a winding motor, and a winding roller. A placement groove is provided on one side of the top of the device box, and a connecting groove is provided at the bottom of the inner wall of the placement groove. A retaining sleeve is installed in the inner wall of the connecting groove. First adjustment grooves are provided on both sides of the middle of the inner wall of the device box. A first lead screw is rotatably connected to the bottom of the inner wall of one of the first adjustment grooves. A first adjustment motor is fixedly installed in the middle of one side of the top surface of the device box. First movable blocks are slidably connected in the inner walls of two sets of first adjustment grooves. A tension roller is fixedly installed between the two sets of first movable blocks. A second adjustment motor is fixedly installed at the edge of one side of the top of the device box. Second adjustment grooves are symmetrically provided on the inner wall of the device box away from the winding roller. A second lead screw is rotatably connected in the inner wall of the second adjustment groove on the same side as the first lead screw. Second movable blocks are respectively sleeved around the outer periphery of the second lead screw. Connecting rods are respectively provided on both sides of the inner wall of the device box. A pressure plate is fixedly installed on one side of the outer periphery of the connecting rod. Pressure sensors are fixedly installed on the outer periphery of the tension roller and on the top side of the pressure plate.

[0006] Preferably, a caster wheel is fixedly installed at the inner corner of the bottom of the device box, and a feed port is opened through the end of the device box away from the winding roller.

[0007] Preferably, a winding motor is fixedly installed on one side of the front of the device box, and a bearing is fixedly installed on the inner wall of the connecting groove near the outer edge, with the output end of the winding motor extending into the inner diameter of the bearing.

[0008] Preferably, the ferrule is fixedly connected to the inner edge of the bearing's inner diameter, and the take-up roller is engaged in the inner wall of the ferrule.

[0009] Preferably, a sliding rod is connected through the inner wall of both the first adjusting groove and the second adjusting groove located on the opposite side of the first lead screw.

[0010] Preferably, the top of the first movable block located on one side is provided with an internal thread hole that matches the periphery of the first lead screw, and the output end of the first adjusting motor is connected to the top end of the first lead screw.

[0011] Preferably, the tops of the two sets of second movable blocks on one side are respectively provided with internal thread holes with opposite inner wall threads, and the output end of the second adjusting motor is connected to the top end of the second lead screw.

[0012] Preferably, the pressure plate is a tough steel structure and has an arc-shaped structure. The vertical surfaces of the two sets of pressure plates located on the same side of the feed inlet are on the same straight line as the feed inlet.

[0013] Preferably, the two sets of pressure sensors are electrically connected to the first regulating motor and the second regulating motor respectively via a PLC controller.

[0014] Preferably, the tops of the first movable block and the second movable block located around the two sets of slide rods are each provided with through holes, and the first movable block and the second movable block are respectively movably sleeved around the slide rods through the through holes.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention uses pressure sensors on two sets of pressure plates on one side to sense the tension of the winding sheet. A second adjusting motor then drives a second lead screw to rotate, allowing the spacing between the two sets of arc-shaped pressure plates to be flexibly adjusted according to the tension of the EVA sheet during winding. This enables flexible adjustment of the pressing force during EVA sheet winding, and consequently, flexible adjustment of the EVA sheet winding tension. A pressure sensor at the top of the tension roller's outer perimeter further monitors the sheet tension at the top of the tension roller's outer perimeter, allowing the tension roller's height to be flexibly adjusted. This further tensions the EVA sheet passing between the two sets of pressure plates on one side of the device's inner wall, achieving precise adjustment of the tension force during EVA sheet winding. This solves the problem that the winding device cannot flexibly adjust the sheet tension according to the sheet thickness during EVA sheet winding.

[0017] This invention enables the take-up roller to be quickly engaged and positioned via a U-shaped sleeve in the inner wall of the connecting groove, thereby allowing for rapid assembly and disassembly of the take-up roller. This improves the efficiency of winding EVA sheets around the take-up roller and solves the problem that the EVA sheet take-up roller is not easy to quickly assemble and disassemble from the winding device, which affects the winding production efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the side cross-sectional structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the top cross-sectional structure of the present invention;

[0021] Figure 4 for Figure 3 A magnified view of the structure at point A in the middle;

[0022] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0023] In the diagram: 1. Device box; 2. Feed inlet; 3. Placement slot; 4. Rewinding motor; 5. Rewinding roller; 6. Sleeve; 7. First adjustment slot; 8. First lead screw; 9. First adjustment motor; 10. First movable block; 11. Tensioning roller; 12. Second adjustment motor; 13. Second adjustment slot; 14. Second lead screw; 15. Second movable block; 16. Connecting rod; 17. Pressure plate; 18. Pressure sensor; 19. Slide rod; 101. Universal wheel; 301. Connecting slot. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Please see Figure 1-5 The present invention provides a technical solution: a winding device for EVA sheet for automotive parts, including a device box 1, a winding motor 4, and a winding roller 5. A placement groove 3 is provided on one side of the top of the device box 1, and a connecting groove 301 is provided at the bottom of the inner wall of the placement groove 3. A ferrule 6 is installed in the inner wall of the connecting groove 301. A first adjustment groove 7 is provided on both sides of the middle of the inner wall of the device box 1, and a first lead screw 8 is rotatably connected to the bottom of the inner wall of the first adjustment groove 7 on one side.

[0026] A first adjusting motor 9 is fixedly installed in the middle of one side of the top surface of the device box 1. A first movable block 10 is slidably connected in the inner wall of the two sets of first adjusting grooves 7. A tensioning roller 11 is fixedly installed between the two sets of first movable blocks 10. A second adjusting motor 12 is fixedly installed at the edge of one side of the top of the device box 1. A second adjusting groove 13 is symmetrically opened on the inner wall of the device box 1 away from the winding roller 5.

[0027] A second lead screw 14 is rotatably connected to the inner wall of the second adjustment groove 13 located on the same side as the first lead screw 8. A second movable block 15 is respectively sleeved around the second lead screw 14. Connecting rods 16 are respectively provided on both sides of the inner wall of the device box 1. A pressure plate 17 is fixedly installed on one side of the outer periphery of the connecting rod 16. Pressure sensors 18 are fixedly installed on both the outer periphery of the tension roller 11 and the top side of the pressure plate 17.

[0028] The EVA sheet extends from the feed inlet 2 to between two sets of pressure plates 17 on one side of the device box 1. The pressure sensor 18 on the two sets of pressure plates 17 on one side can sense the tension of the winding sheet, and then drive the second lead screw 14 to rotate through the second adjusting motor 12, so that the spacing between the two sets of arc-shaped pressure plates 17 can be flexibly adjusted according to the tension of the winding EVA sheet, realizing flexible adjustment of the pressing force when winding the EVA sheet, and thus flexible adjustment of the winding tension of the EVA sheet;

[0029] The pressure sensor 18 on the top periphery of the tension roller 11 can further monitor the sheet tension force on the top periphery of the tension roller 11, and the first adjusting motor 9 can drive the first lead screw 8 to rotate, so that the height of the tension roller 11 can be flexibly adjusted, thereby further tensioning the EVA sheet that passes between the two sets of pressure plates 17 on one side of the inner wall of the device box 1. This achieves precise adjustment of the tension force when the EVA sheet is wound up, avoiding uneven tension force when the sheet is wound up, which would cause the sheet to be too tight or too loose, affecting normal winding.

[0030] The U-shaped sleeve 6 in the inner wall of the connecting groove 301 can quickly engage and position the take-up roller 5, thereby enabling quick assembly and disassembly of the take-up roller 5 and improving the winding efficiency of the EVA sheet around the take-up roller 5.

[0031] Among them, a caster wheel 101 is fixedly installed at the inner corner of the bottom of the device box 1. The end of the device box 1 away from the winding roller 5 has a feed port 2. The EVA sheet extends from the feed port 2 to the space between the two sets of pressure plates 17 on one side of the device box 1. Furthermore, the EVA sheet extends to the top of the tension roller 11 and extends to the space between the two sets of pressure plates 17 on the other side for guidance, thereby achieving the effect of guiding the sheet wound around the winding roller 5.

[0032] The device box 1 has a winding motor 4 fixedly installed on one side of the front. A bearing is fixedly installed on the inner wall of the connecting groove 301 near the outer edge. A ferrule 6 is fixedly connected to the inner edge of the bearing's inner diameter. The winding roller 5 is snapped into the inner wall of the ferrule 6. The output end of the winding motor 4 extends into the inner diameter of the bearing. The U-shaped ferrule 6 in the inner wall of the connecting groove 301 can quickly snap and position the winding roller 5, thus enabling quick assembly and disassembly of the winding roller 5.

[0033] Among them, the inner walls of the first adjusting groove 7 and the second adjusting groove 13 located on opposite sides of the first lead screw 8 are connected by sliding rods 19. The other ends of the tension roller 11 and the connecting rod 16 are respectively movably sleeved on the periphery of the sliding rod 19 through the first movable block 10 and the second movable block 15, so that the two sets of connecting rods 16 and tension roller 11 on one side can flexibly slide and adjust their height in the inner wall of the device box 1.

[0034] The first movable block 10 located on one side has an internal threaded hole on its top that matches the outer periphery of the first lead screw 8. The output end of the first adjusting motor 9 is connected to the top end of the first lead screw 8. The pressure sensor 18 on the outer periphery of the tension roller 11 can further monitor the sheet tension force on the outer periphery of the tension roller 11. The first adjusting motor 9 can drive the first lead screw 8 to rotate, so that the height of the tension roller 11 can be flexibly adjusted.

[0035] Among them, the tops of the two sets of second movable blocks 15 on one side are respectively provided with internal thread holes with opposite inner wall threads. The output end of the second adjusting motor 12 is connected to the top end of the second lead screw 14. The pressure plate 17 is a tough steel structure with an arc-shaped structure. The vertical surface of the two sets of pressure plates 17 on the same side as the feed port 2 is on the same straight line as the feed port 2. The pressure sensor 18 on the two sets of pressure plates 17 on one side can sense the tension of the winding sheet through it. Then, the second adjusting motor 12 drives the second lead screw 14 to rotate, so that the spacing of the two sets of arc-shaped pressure plates 17 can be flexibly adjusted according to the tension of the winding EVA sheet, realizing flexible adjustment of the pressing force when winding the EVA sheet.

[0036] The pressure sensor 18 is electrically connected to the first regulating motor 9 and the second regulating motor 12 via a PLC controller.

[0037] The first movable block 10 and the second movable block 15, located around the two sets of slide rods 19, each have through holes at their tops. The first movable block 10 and the second movable block 15 are movably fitted around the slide rods 19 through the through holes. The other ends of the tension roller 11 and the connecting rod 16 are movably fitted around the slide rods 19 through the first movable block 10 and the second movable block 15, respectively, so that the two sets of connecting rods 16 and the tension roller 11 on one side can flexibly slide and adjust their height within the inner wall of the device box 1.

[0038] Working principle: In use, first place the take-up roller 5 on two sets of U-shaped clamps 6. Then, the EVA sheet to be wound is passed through the feed inlet 2 and extends between the two sets of pressure plates 17 on one side of the inner wall of the device box 1, and extends to the top of the tension roller 11, passing through the two sets of pressure plates 17 on the other side and wrapping around the outer perimeter of the take-up roller 5. Then, the take-up motor 4, the first adjusting motor 9, and the second adjusting motor 12 are turned on. When winding the EVA sheet, the pressure sensor 18 on the two sets of pressure plates 17 on one side can sense the tension of the winding sheet, and then the second adjusting motor 12 drives the second lead screw 14 to rotate, so that the two sets of arc-shaped pressure plates 17 can adjust according to the winding of EVA. The sheet tension can be flexibly adjusted by adjusting the spacing, which allows for flexible adjustment of the pressing force during EVA sheet winding, and thus flexible adjustment of the EVA sheet winding tension. The pressure sensor 18 on the top of the tension roller 11 can further monitor the sheet tension on the top of the tension roller 11, and the first lead screw 8 can be rotated by the first adjusting motor 9, so that the height of the tension roller 11 can be flexibly adjusted, thereby further tensioning the EVA sheet passing between the two sets of pressure plates 17 on one side of the inner wall of the device box 1. This achieves precise adjustment of the tension during EVA sheet winding, avoiding uneven tension during sheet winding, which would cause the sheet to be too tight or too loose, affecting normal winding.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A winding device for EVA sheets used in automotive parts, comprising a device box (1), a winding motor (4), and a winding roller (5), characterized in that: The device box (1) has a placement groove (3) on one side of its top. The placement groove (3) has a connecting groove (301) at the bottom of its inner wall. A ferrule (6) is installed in the inner wall of the connecting groove (301). The device box (1) has two first adjustment grooves (7) on both sides of its inner wall. The bottom of the inner wall of the first adjustment groove (7) on one side is rotatably connected to a first lead screw (8). The device box (1) has a first adjustment motor (9) fixedly installed in the middle of one side of its top surface. The two sets of first adjustment grooves (7) have first movable blocks (10) slidably connected in their inner walls. A tensioning roller (11) is fixedly installed between the two sets of first movable blocks (10). A second adjusting motor (12) is fixedly installed at one edge of the top of the box (1). A second adjusting groove (13) is symmetrically opened on the inner wall of the device box (1) away from the winding roller (5). A second lead screw (14) is rotatably connected in the inner wall of the second adjusting groove (13) on the same side as the first lead screw (8). Two sets of second movable blocks (15) are sleeved around the second lead screw (14). Connecting rods (16) are respectively provided on both sides of the inner wall of the device box (1). A pressure plate (17) is fixedly installed on one side of the outer periphery of the connecting rod (16). Pressure sensors (18) are fixedly installed on the outer periphery of the tension roller (11) and on the top side of the pressure plate (17). The tops of the two sets of second movable blocks (15) are respectively provided with internal thread holes with opposite inner wall threads, and the output end of the second adjusting motor (12) is connected to the top end of the second lead screw (14); The pressure plate (17) is a tough steel structure and an arc-shaped structure. The vertical surfaces of the two sets of pressure plates (17) located on the same side of the feed inlet (2) are on the same straight line as the feed inlet (2). The two sets of pressure sensors (18) are electrically connected to the first regulating motor (9) and the second regulating motor (12) respectively via a PLC controller; The second adjusting motor (12) drives the second lead screw (14) to rotate. The two sets of arc-shaped pressure plates (17) adjust the spacing according to the tension of the EVA sheet to adjust the tension of the EVA sheet. The pressure sensor (18) at the top of the outer periphery of the tension roller (11) monitors the tension of the sheet at the top of the outer periphery of the tension roller (11). The first adjusting motor (9) drives the first lead screw (8) to rotate. The height of the tension roller (11) is adjusted to further tension the EVA sheet passing between the two sets of pressure plates (17) on one side of the inner wall of the device box (1).

2. The winding device for EVA sheet for automotive parts according to claim 1, characterized in that: A caster wheel (101) is fixedly installed at the inner corner of the bottom of the device box (1), and a feed inlet (2) is opened through the end of the device box (1) away from the winding roller (5).

3. The winding device for EVA sheet used in automotive parts according to claim 2, characterized in that: A winding motor (4) is fixedly installed on one side of the front of the device box (1). A bearing is fixedly installed on the inner wall of the connecting groove (301) near the outer edge. The output end of the winding motor (4) extends into the inner diameter of the bearing.

4. The winding device for EVA sheet for automotive parts according to claim 3, characterized in that: The sleeve (6) is fixedly connected to the inner edge of the bearing inner diameter, and the take-up roller (5) is engaged in the inner wall of the sleeve (6).

5. A winding device for EVA sheets used in automotive parts according to claim 4, characterized in that: A slide rod (19) is connected through the inner wall of both the first adjustment groove (7) and the second adjustment groove (13) located on the opposite side of the first lead screw (8).

6. A winding device for EVA sheets used in automotive parts according to claim 5, characterized in that: The top of the first movable block (10) located on one side is provided with an internal thread hole that matches the periphery of the first lead screw (8), and the output end of the first adjusting motor (9) is connected to the top end of the first lead screw (8).

7. A winding device for EVA sheets used in automotive parts according to claim 6, characterized in that: The top of the first movable block (10) and the second movable block (15) located on the periphery of the two sets of slide rods (19) are both provided with through holes, and the first movable block (10) and the second movable block (15) are respectively movably sleeved on the periphery of the slide rod (19) through the through holes.

Images