Automatic deviation rectifying mechanism of EVA (Ethylene Vinyl Acetate) laminating equipment

Abstract

The utility model relates to the technical field of EVA (Ethylene Vinyl Acetate) laminating equipment, in particular to an automatic deviation rectifying mechanism of EVA laminating equipment, which comprises a sliding block component, a positioning block component and a shell, the positioning block component comprises a first positioning block, a second positioning block and a third positioning block, and the sliding block component comprises a first sliding block and a second sliding block. The first sliding block and the second sliding block are both slidably connected with the shell, the first sliding block is located between the first positioning block and the second positioning block, the second sliding block is located between the second positioning block and the third positioning block, the outer side face of the shell is slidably connected with a rack, and the positioning block assembly, the sliding block assembly and the shell are symmetrically arranged relative to the rack. A driven roller is arranged between the two first sliding blocks on the two sides of the machine frame, the electromagnetic assembly is used for driving the first sliding blocks and the second sliding blocks, by adjusting the positions of the two ends of the driven roller, an EVA film deflects in the reverse direction to be reset, the two ends of a roller shaft do not need to be manually adjusted by workers in the adjusting process, and time and material waste is reduced.

Description

Technical Field

[0001] This utility model relates to an automatic correction mechanism for a laminating equipment, and more particularly to an automatic correction mechanism for an EVA laminating equipment, belonging to the technical field of laminating equipment. Background Technology

[0002] An EVA laminating machine is a device that laminates EVA material onto the surface of other materials. It utilizes the excellent adhesion of EVA hot melt adhesive after heating. The EVA film is first heated, and then, under a certain pressure, the heated EVA film is tightly bonded to the substrate. The machine is driven by a motor, which rotates various rollers to achieve the material conveying and lamination.

[0003] When conveying EVA film, deviation can occur when the rotation speed and pressure of the rollers change. When deviation occurs, existing equipment adjusts the pressure on the EVA film on both sides of the rollers to deflect the EVA film to the other side, thus correcting the position of the EVA film. However, when the equipment is shut down for a long time or when the coated parts are replaced, the rollers need to be readjusted. The existing adjustment method requires experienced workers to manually adjust and try multiple times, and the adjustment time is usually long. During the adjustment process, some EVA film is consumed, resulting in a waste of time and materials.

[0004] Therefore, it is urgent to improve the automatic correction mechanism of EVA coating equipment to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an automatic correction mechanism for an EVA coating equipment. The mechanism connects the two ends of a driven roller to a first slider. When the first slider slides, the two ends of the driven roller shift. When the first slider contacts the first positioning block, the driven roller is in position one. When the first slider contacts the second slider and the second slider contacts the second positioning block, the driven roller is in position two. When the first slider contacts the second slider and the second slider contacts the third positioning block, the driven roller is in position three. Multiple electromagnets then switch the positions of the first and second sliders. When the EVA film deflects, the electromagnets adjust the positions of the two ends of the driven roller to reverse the deflection and return the film to its correct position. This adjustment eliminates the need for manual adjustment of the roller ends and allows for synchronous adjustment during machine operation, making the adjustment process more convenient and rapid, reducing adjustment time and material waste.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a slider assembly, a positioning block assembly, and a housing. The positioning block assembly includes a first positioning block, a second positioning block, and a third positioning block. The first positioning block is fixedly connected to one side of the inner surface of the housing, and the third positioning block is fixedly connected to the inner surface of the housing away from the first positioning block. The second positioning block is located between the first and third positioning blocks and is fixedly connected to the inner bottom surface of the housing. The slider assembly includes a first slider and a second slider, both of which are slidably connected to the housing. The first slider is located between the first and second positioning blocks, and the second slider is located between the second and third positioning blocks. A frame is slidably connected to the outer surface of the housing. The positioning block assembly, the slider assembly, and the housing are symmetrically arranged relative to the frame. A driven roller is provided between the two first sliders on both sides of the frame. An electromagnetic component is provided inside the housing to drive the first and second sliders.

[0007] Preferably, a guide rod is provided between the first positioning block and the third positioning block, and linear bearings are provided inside both the second slider and the first slider. The linear bearings are slidably connected to the guide rods, and the sliding direction of the linear bearings is parallel to the sliding direction of the housing.

[0008] Preferably, the electromagnetic assembly includes electromagnet No. 1, electromagnet No. 2, electromagnet No. 3, and electromagnet No. 4. Electromagnet No. 1 is fixedly connected to the middle of the side of the No. 1 positioning block near the No. 1 slider. Electromagnet No. 2 is fixedly connected to the middle of the side of the No. 2 positioning block near the No. 2 slider. Electromagnet No. 4 is fixedly connected to the two ends of the side of the No. 2 slider near the No. 1 slider.

[0009] Preferably, the third positioning block has a spring groove on one side near the second slider, and a positioning spring is provided in the spring groove. One end of the positioning spring abuts against the bottom surface of the spring groove, and the other end of the positioning spring abuts against the side of the second slider.

[0010] Preferably, the frame is provided with adjustment components on both sides. The adjustment components include double-ended adjustment nuts, positive threaded bolts and negative threaded bolts. The positive threaded bolts are fixedly connected to the housing, and the negative threaded bolts are fixedly connected to the frame. The two ends of the double-ended adjustment nuts are respectively threadedly connected to the positive threaded bolts and the negative threaded bolts. Each positive threaded bolt and the negative threaded bolt is threadedly connected to a locking nut.

[0011] Preferably, the frame has slide rails on both sides of the front, and the housing has slide grooves on both sides, which slide along the slide rails.

[0012] Preferably, an active roller is provided below the frame, and both ends of the active roller are connected to the frame through bearing seats. A drive motor is fixedly connected to one side of the frame, and one end of the active roller is fixedly connected to the output shaft of the drive motor.

[0013] Preferably, the driven roller includes a shaft and a cylinder, the two ends of the shaft are inserted into and fixedly connected to the first slider, the cylinder is sleeved on the shaft, and a bearing is provided between the cylinder and the shaft.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. The driven roller is connected to the first slider at both ends. When the first slider slides, the driven roller is displaced at both ends. When the first slider contacts the first positioning block, the driven roller is in position one. When the first slider contacts the second slider and the second slider contacts the second positioning block, the driven roller is in position two. When the first slider contacts the second slider and the second slider contacts the third positioning block, the driven roller is in position three. Then, multiple electromagnets switch the positions of the first and second sliders. When the EVA film deflects, the electromagnets adjust the positions of the driven roller to reverse the deflection and return the film to its original position. The adjustment does not require manual adjustment of the roller ends by workers and can be adjusted synchronously during mechanical operation, making the adjustment process more convenient and faster, reducing adjustment time and waste of time and materials.

[0016] 2. Adjust the position of the driven roller by turning the adjusting bolt to slide the housing and the first slider relative to the frame. After adjustment, fix it with the locking nut to prevent the housing from sliding. When the equipment is assembled, moved or malfunctions, the driven roller can be adjusted at a large angle by adjusting the adjusting component. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of a single-sided isometric structure provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the internal exploded structure provided by this utility model;

[0020] Figure 3This is a schematic diagram of the isometric structure provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the forward isometric structure provided by this utility model;

[0022] Figure 5 This is a cross-sectional view of the driven roller provided by this utility model.

[0023] In the diagram: 1. Slider assembly; 2. Positioning block assembly; 3. Housing; 4. Frame; 5. Driven roller; 6. Electromagnetic assembly; 7. Guide rod; 8. Linear bearing; 9. Adjusting assembly; 10. Positioning spring; 11. Spring groove; 12. Locking nut; 13. Slide rail; 14. Slide groove; 15. Bearing seat; 16. Drive motor; 17. Driven roller; 101. Slider No. 1; 102. Slider No. 2; 201. Positioning block No. 1; 202. Positioning block No. 2; 203. Positioning block No. 3; 501. Shaft; 502. Cylinder; 601. Electromagnet No. 1; 602. Electromagnet No. 2; 603. Electromagnet No. 3; 604. Electromagnet No. 4; 901. Double-ended adjusting nut; 902. Positive thread bolt; 903. Negative thread bolt. Detailed Implementation

[0024] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] like Figures 1-5As shown, the automatic correction mechanism of the EVA coating equipment provided in this embodiment includes a slider assembly 1, a positioning block assembly 2, and a housing 3. The positioning block assembly 2 includes a first positioning block 201, a second positioning block 202, and a third positioning block 203. The first positioning block 201 is fixedly connected to one side of the inside of the housing 3. The third positioning block 203 is fixedly connected to the inner side of the housing 3 away from the first positioning block 201. The second positioning block 202 is located between the first positioning block 201 and the third positioning block 203, and is fixedly connected to the inner bottom surface of the housing 3. The slider assembly 1 includes a first slider 101 and a second slider 102. Both the first slider 101 and the second slider 102 are slidably connected to the housing 3. The first slider 101 is located between the first positioning block 201 and the second positioning block 202, and the second slider 102 is located between the second positioning block 202 and the third positioning block 203. Between the positioning block assembly 2, the slider assembly 1, and the housing 3, the driven roller 5 is symmetrically arranged relative to the frame 4. A driven roller 5 is provided between the two first sliders 101 on both sides of the frame 4. The shaft of the driven roller 5 can withstand a certain deformation, and the first slider 101 moves a small distance. When the first sliders 101 on both sides of the frame 4 move, they can drive the driven roller 5 to move on both sides respectively. When the first slider 101 contacts the first positioning block 201, the driven roller 5 is in position 1. When the first slider 101 contacts the second slider 102 and the second slider 102 contacts the second positioning block 202, the driven roller 5 is in position 2. When the first slider 101 contacts the second slider 102 and the second slider 102 contacts the third positioning block 203, the driven roller 5 is in position 3. By changing the position of the two ends of the driven roller 5, the tension on both sides of the EVA film changes, thereby causing the EVA film to deflect.

[0026] A guide rod 7 is provided between the first positioning block 201 and the third positioning block 203. Linear bearings 8 are provided inside the second slider 102 and the first slider 101. The linear bearings 8 are slidably connected to the guide rod 7. The sliding direction of the linear bearings 8 is parallel to the sliding direction of the housing 3. The linear bearings 8 and the guide rod 7 make the first slider 101 and the second slider 102 run more smoothly.

[0027] A first positioning block 201 has a first electromagnet 601 located in the middle of its side near the first slider 101. A second positioning block 202 has a second electromagnet 602 located in the middle of its side near the second slider 102. A third positioning block 203 has a third electromagnet 603 located at each end of its side near the second slider 102. The second slider 102 is C-shaped, and a fourth electromagnet 604 is located at each end of its side near the first slider 101. When the first electromagnet 601 is activated, the first slider 101 is attracted to the first positioning block 201 and pressed tightly against it. At this time, the first slider 101 is... When the first position is attracted, electromagnet 601 is disconnected, and electromagnets 602 and 604 are activated. At this time, slider 102 and positioning block 202 are tightly fitted together, and slider 101 and slider 102 are also tightly fitted together. Slider 101 then automatically moves to position 2. Electromagnet 602 is disconnected, and electromagnet 603 is activated. At this time, slider 102 and positioning block 203 are tightly fitted together, while electromagnet 604 is kept in place. Slider 101 and slider 102 remain tightly fitted together, and slider 101 then automatically moves to position 3.

[0028] A spring groove 11 is provided on one side of the third positioning block 203 near the second slider 102. A positioning spring 10 is provided in the spring groove 11. One end of the positioning spring 10 abuts against the bottom surface of the spring groove 11, and the other end of the positioning spring 10 abuts against the side of the second slider 102. Under the action of the positioning spring 10, the second slider 102 is tightly attached to the second positioning block 202. This position is the initial position of the second slider 102. When positioning the first slider 101, the third electromagnet 603 and the fourth electromagnet 604 are de-energized. The positioning spring 10 prevents the second slider 102 from sliding arbitrarily, so as to prevent inaccurate positioning in the future.

[0029] The driven roller 5 is connected to the first slider 101 at both ends. When the first slider 101 slides, the driven roller 5 is displaced at both ends. When the first slider 101 contacts the first positioning block 201, the driven roller 5 is in position one. When the first slider 101 contacts the second slider 102 and the second slider 102 contacts the second positioning block 202, the driven roller 5 is in position two. When the first slider 101 contacts the second slider 102 and the second slider 102 contacts the third positioning block 203, the driven roller 5 is in position three. Then, multiple electromagnets are used to switch the positions of the first slider 101 and the second slider 102. When the EVA film deflects, the positions of the driven roller 5 are adjusted by the electromagnets to make the EVA film deflect in the opposite direction and return to the correct position. During adjustment, there is no need for workers to manually adjust the two ends of the roller shaft. Moreover, the adjustment can be performed synchronously during the operation of the machine, making the adjustment process more convenient and faster, reducing adjustment time, and reducing the waste of time and materials.

[0030] Furthermore, such as Figure 1 As shown, the frame 4 is equipped with adjustment components 9 on both sides. The adjustment components 9 include a double-ended adjustment nut 901, a positive thread bolt 902, and a negative thread bolt 903. The positive thread bolt 902 is fixedly connected to the housing 3, and the negative thread bolt 903 is fixedly connected to the frame 4. The two ends of the adjustment nut are threadedly connected to the positive thread bolt 902 and the negative thread bolt 903 respectively. Both the positive thread bolt 902 and the negative thread bolt 903 are threadedly connected to a locking nut 12. The front sides of the frame 4 are provided with slide rails 13, and the sides of the housing 3 are provided with slide grooves 14. The slide grooves 14 slide along the slide rails 13. Tightening the adjustment bolts causes the housing 3 and the first slider 101 to slide relative to the frame 4, thereby adjusting the position of the driven roller 5. After adjustment, the housing 3 is fixed by the locking nut 12 to prevent the housing 3 from sliding. During equipment assembly, relocation, or equipment failure, the driven roller 5 can be adjusted at a large angle by the adjustment components 9.

[0031] Furthermore, such as Figure 4 as well as Figure 5 As shown, an active roller 17 is provided below the frame 4. Both ends of the active roller 17 are connected to the frame 4 through bearing seats 15. A drive motor 16 is fixedly connected to one side of the frame 4. One end of the active roller 17 is fixedly connected to the output shaft of the drive motor 16. The driven roller 5 includes a shaft 501 and a cylinder 502. The two ends of the shaft 501 are inserted into and fixedly connected to the first slider 101. The cylinder 502 is sleeved on the shaft 501. A bearing is provided between the cylinder 502 and the shaft 501. The active roller 17 is directly driven by the motor to move the EVA film. The shaft 501 of the driven roller 5 is fixedly connected to the first slider 101 and rotates under the friction of the EVA film. When the two ends of the driven roller 5 are displaced, the non-rotating shaft 501 has little impact on the operation of the equipment.

[0032] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0033] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0034] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An automatic correction mechanism for an EVA coating equipment, comprising a slider assembly (1), a positioning block assembly (2), and a housing (3), characterized in that: The positioning block assembly (2) includes a first positioning block (201), a second positioning block (202), and a third positioning block (203). The first positioning block (201) is fixedly connected to one side of the interior of the housing (3). The third positioning block (203) is fixedly connected to the inner side of the housing (3) away from the first positioning block (201). The second positioning block (202) is located between the first positioning block (201) and the third positioning block (203), and the second positioning block (202) is fixedly connected to the inner bottom surface of the housing (3). The slider assembly (1) includes a first slider (101) and a second slider (102). All are slidably connected to the housing (3). The first slider (101) is located between the first positioning block (201) and the second positioning block (202). The second slider (102) is located between the second positioning block (202) and the third positioning block (203). The outer side of the housing (3) is slidably connected to the frame (4). The positioning block assembly (2), the slider assembly (1), and the housing (3) are symmetrically arranged relative to the frame (4). A driven roller (5) is provided between the two first sliders (101) on both sides of the frame (4). An electromagnetic assembly (6) is provided inside the housing (3). The electromagnetic assembly (6) is used to drive the first slider (101) and the second slider (102).

2. The automatic correction mechanism for an EVA coating equipment according to claim 1, characterized in that: A guide rod (7) is provided between the first positioning block (201) and the third positioning block (203). A linear bearing (8) is provided inside both the second slider (102) and the first slider (101). The linear bearing (8) is slidably connected to the guide rod (7). The sliding direction of the linear bearing (8) is parallel to the sliding direction of the housing (3).

3. The automatic correction mechanism for an EVA coating equipment according to claim 1, characterized in that: The electromagnetic assembly (6) includes a first electromagnet (601), a second electromagnet (602), a third electromagnet (603), and a fourth electromagnet (604). The first positioning block (201) is fixedly connected to the first electromagnet (601) at the middle of the side near the first slider (101). The second positioning block (202) is fixedly connected to the second electromagnet (602) at the middle of the side near the second slider (102). The third positioning block (203) is fixedly connected to a third electromagnet (603) at each end of the side near the second slider (102). The second slider (102) is C-shaped, and the fourth electromagnet (604) is fixedly connected to each end of the side near the first slider (101).

4. The automatic correction mechanism for an EVA coating equipment according to claim 1, characterized in that: The third positioning block (203) has a spring groove (11) on one side near the second slider (102). A positioning spring (10) is provided in the spring groove (11). One end of the positioning spring (10) abuts against the bottom surface of the spring groove (11), and the other end of the positioning spring (10) abuts against the side of the second slider (102).

5. The automatic correction mechanism for an EVA coating equipment according to claim 1, characterized in that: The frame (4) is provided with adjustment components (9) on both sides. The adjustment components (9) include a double-ended adjustment nut (901), a positive thread bolt (902) and a negative thread bolt (903). The positive thread bolt (902) is fixedly connected to the housing (3), and the negative thread bolt (903) is fixedly connected to the frame (4). The two ends of the double-ended adjustment nut (901) are respectively threaded and connected to the positive thread bolt (902) and the negative thread bolt (903). The positive thread bolt (902) and the negative thread bolt (903) are each threaded and connected to a locking nut (12).

6. The automatic correction mechanism for an EVA coating equipment according to claim 1, characterized in that: The frame (4) has slide rails (13) on both sides of the front, and the housing (3) has slide grooves (14) on both sides. The slide grooves (14) slide along the slide rails (13).

7. The automatic correction mechanism for an EVA coating equipment according to claim 1, characterized in that: An active roller (17) is provided below the frame (4). Both ends of the active roller (17) are connected to the frame (4) through bearing seats (15). A drive motor (16) is fixedly connected to one side of the frame (4). One end of the active roller (17) is fixedly connected to the output shaft of the drive motor (16).

8. The automatic correction mechanism for an EVA coating equipment according to claim 1, characterized in that: The driven roller (5) includes a shaft (501) and a cylinder (502). The two ends of the shaft (501) are inserted into the first slider (101) and fixedly connected to the first slider (101). The cylinder (502) is sleeved on the shaft (501). A bearing is provided between the cylinder (502) and the shaft (501).

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