Automatic EVA (Ethylene Vinyl Acetate) plate feeding device with positioning structure
By designing an automatic EVA sheet feeding device with a positioning structure, and utilizing the mechanical linkage of horizontal and vertical guide wheels, precise positioning and synchronous trimming and cutting of the sheet are achieved. This solves the problem of inaccurate positioning and cutting in traditional devices, improves production efficiency and quality, and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional automatic feeding devices for EVA sheets are difficult to accurately position and trim during processing, resulting in low production efficiency, unstable quality, increased production costs, and difficulty in quality control.
An automatic feeding device for EVA sheets with a positioning structure was designed. Through the mechanical linkage of multiple sets of transverse and longitudinal guide wheels, the device achieves precise positioning and synchronous trimming and cutting of the sheets. The coordination of the regulating motor and the drive motor ensures the smoothness of the feeding process and the accuracy of the cutting.
It improves the efficiency and quality of sheet metal processing, reduces the difficulty and cost of manual operation, and provides an efficient and convenient automation solution for the sheet metal processing industry.
Smart Images

Figure CN224014747U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to plate automatic feeding device technical field especially relates to a kind of EVA plate automatic feeding device with positioning structure. BACKGROUND
[0002] EVA plate is by EVA, low-density polyethylene, blowing agent etc. as raw material, it is formed thick sheet plate material in high-temperature foaming furnace by mixing at high temperature, then it is formed by shaping, sectioning, post-processing etc. EVA plate is widely used in packaging, building, electronics and automobile manufacturing etc. multiple fields due to its good flexibility, chemical corrosion resistance and heat insulation performance.
[0003] In the process of feeding EVA plate, the traditional EVA plate is processed, the width size of plate is different, and automatic feeding, accurate positioning and edge cutting etc. involve multiple equipment cooperative production, in this process, often rely on conveyor belt to feed plate.
[0004] Therefore, in view of the above-mentioned inconvenience to realize automatic feeding, accurate positioning and edge cutting of EVA plate, a kind of EVA plate automatic feeding device with positioning structure can be designed, when plate automatic feeding device is used, a series of precise mechanical linkage design is realized to realize automatic feeding, accurate positioning and synchronous edge cutting of EVA plate, greatly improve the efficiency and quality of plate processing, provide a kind of efficient, convenient and automatic solution for plate processing industry. UTILITY MODEL CONTENT
[0005] In order to overcome the difficulty in ensuring processing precision and consistency when conveyor belt feeds plate in the process of using plate automatic feeding device, especially in large-scale production process, due to lack of positioning structure, the error accumulation of operation can lead to product quality fluctuation, increase production cost and quality control difficulty, and it is urgent to improve, and then the problem of automatic feeding, accurate positioning and edge cutting of EVA plate is not convenient.
[0006] The technical scheme of the utility model is as follows: a kind of EVA plate automatic feeding device with positioning structure, including rack, feeding motor, feeding shaft, feeding roller, feed shaft, feed roller, positioning frame, installation slot, transverse guide wheel and longitudinal guide wheel, two groups of feeding motor are fixedly arranged on the side wall of rack, the output end of feeding motor is provided with feeding shaft, the inner wall of rack is rotatably connected with the one end of feeding shaft, the side wall of feeding shaft is fixedly provided with feeding roller, the inside of rack is provided with multiple feed shafts, the side wall of feed shaft is fixedly provided with feed roller, the upper side of rack is provided with two groups of positioning frame, installation slot is set in the inside of positioning frame, the inside of installation slot is provided with multiple transverse guide wheels, the inside of installation slot is provided with multiple longitudinal guide wheels.
[0007] Preferably, during the use of the automatic sheet feeding device, the EVA sheet to be processed is first placed inside the upper part of the frame. Then, the positioning frames on both sides are driven to move towards the center of the frame. As the positioning frames on both sides move towards the center, the multiple sets of transverse and longitudinal guide wheels inside them gradually contact the edges of the sheet and generate slight pressure. The design of the multiple sets of transverse and longitudinal guide wheels is intended to reduce friction of the sheet during feeding and effectively prevent the sheet from shifting during conveying, thereby achieving precise positioning of the sheet. At the same time, the sheet is pushed forward in the set direction. Because the two sides of the sheet are stably clamped by the multiple sets of transverse and longitudinal guide wheels, the feeding process is both smooth and accurate. In addition, the edges of the sheet are precisely trimmed and cut according to the feeding progress. In summary, this utility model, through a series of precise mechanical linkage designs, realizes automatic feeding, precise positioning, and synchronous trimming and cutting of EVA sheets, which greatly improves the efficiency and quality of sheet processing, while reducing the difficulty and cost of manual operation, providing an efficient and convenient automated solution for the sheet processing industry.
[0008] Preferably, both ends of the conveying shaft are rotatably connected to the inner walls of both sides of the frame, both ends of the transverse guide wheel are rotatably connected to the inner walls of both sides of the mounting groove, and both ends of the longitudinal guide wheel are rotatably connected to the inner walls of both sides of the mounting groove.
[0009] Preferably, a sliding rail is fixedly installed on the bottom wall of the frame, and an adjusting motor is fixedly installed on one side wall of the sliding rail. The output end of the adjusting motor is equipped with a two-way lead screw.
[0010] Preferably, two sets of sliding seats are provided on the side walls of both ends of the bidirectional lead screw. The sliding seats are threadedly connected to the bidirectional lead screw, and the bottom wall of the positioning frame is fixedly connected to the upper end of the sliding seats.
[0011] Preferably, two sets of guide rails are fixedly installed on the bottom walls of both sides of the frame, and guide rods are installed inside the guide rails. Two sets of guide seats are installed on the side walls at both ends of the guide rods.
[0012] Preferably, the guide seat and the guide rod are slidably connected, and the bottom walls on both sides of the positioning frame are fixedly connected to the upper ends of the two sets of guide seats. A fixed bracket is fixedly installed on the right end of the positioning frame.
[0013] Preferably, a drive motor is fixedly installed inside the fixed bracket, a drive shaft is provided at the output end of the drive motor, and a cutting blade is provided at one end of the drive shaft.
[0014] The beneficial effects of this utility model are:
[0015] When the automatic sheet feeding device is in use, the EVA sheet to be processed is first placed inside the upper part of the frame. Then, by activating the bidirectional adjustment structure, the positioning frames on both sides move towards the center of the frame. As the positioning frames move towards the center, the multiple sets of transverse and longitudinal guide wheels inside them gradually contact the edges of the sheet and generate slight pressure. The design of the multiple sets of transverse and longitudinal guide wheels is intended to reduce friction of the sheet during feeding and effectively prevent the sheet from shifting during transport, thereby achieving precise positioning of the sheet. At the same time, the feeding structure is activated to push the sheet forward in the set direction. Because the sheet is stably clamped by the multiple sets of transverse and longitudinal guide wheels on both sides, the feeding process is both smooth and accurate. In addition, the cutting structures on both sides are activated to perform precise edge trimming and cutting on both sides of the sheet, following the feeding progress. In summary, this utility model, through a series of precise mechanical linkage designs, realizes automatic feeding, precise positioning, and synchronous edge trimming and cutting of EVA sheets, greatly improving the efficiency and quality of sheet processing, while reducing the difficulty and cost of manual operation, providing an efficient and convenient automated solution for the sheet processing industry. Attached Figure Description
[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of an automatic EVA sheet feeding device with a positioning structure according to this utility model.
[0017] Figure 2 The diagram shown is a partial three-dimensional structural schematic of an automatic EVA sheet feeding device with a positioning structure according to this utility model.
[0018] Figure 3 The diagram shown is a partial three-dimensional structural schematic of an automatic EVA sheet feeding device with a positioning structure according to this utility model.
[0019] Figure 4 The diagram shown is a partial three-dimensional structural schematic of an automatic EVA sheet feeding device with a positioning structure according to this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Feeding motor; 3. Feeding shaft; 4. Feeding roller; 5. Conveying shaft; 6. Conveying roller; 7. Positioning frame; 8. Mounting groove; 9. Transverse guide wheel; 10. Longitudinal guide wheel; 11. Sliding rail; 12. Adjusting motor; 13. Bidirectional lead screw; 14. Sliding seat; 15. Guide rail; 16. Guide rod; 17. Guide seat; 18. Fixed bracket; 19. Drive motor; 20. Drive shaft; 21. Cutting disc. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figure 1 and Figure 4 This utility model provides an embodiment: an automatic EVA sheet feeding device with a positioning structure, including a frame 1, a feeding motor 2, a feeding shaft 3, a feeding roller 4, a conveying shaft 5, a conveying roller 6, a positioning frame 7, a mounting groove 8, a transverse guide wheel 9, and a longitudinal guide wheel 10. Two sets of feeding motors 2 are fixedly installed on the side wall of the frame 1. The output end of the feeding motor 2 is provided with a feeding shaft 3. One end of the feeding shaft 3 is rotatably connected to the inner wall of the frame 1. A feeding roller 4 is fixedly installed on the side wall of the feeding shaft 3. Multiple sets of conveying shafts 5 are provided inside the frame 1. A conveying roller 6 is fixedly installed on the side wall of the conveying shaft 5. Two sets of positioning frames 7 are provided on both sides of the top of the frame 1. The positioning frame 7 has a mounting groove 8 inside. Multiple sets of transverse guide wheels 9 are provided inside the mounting groove 8. Multiple sets of longitudinal guide wheels 10 are provided inside the mounting groove 8.
[0023] Please see Figure 3 and Figure 4 Both ends of the feeding shaft 5 are rotatably connected to the inner walls of both sides of the frame 1. Both ends of the transverse guide wheel 9 are rotatably connected to the inner walls of both sides of the mounting groove 8. Both ends of the longitudinal guide wheel 10 are rotatably connected to the inner walls of both sides of the mounting groove 8. Multiple sets of transverse guide wheels 9 and longitudinal guide wheels 10 gradually contact the two edges of the plate and generate slight pressure. The design of multiple sets of transverse guide wheels 9 and longitudinal guide wheels 10 is intended to reduce the friction of the plate during the feeding process. A sliding rail 11 is fixedly installed on the bottom wall of the frame 1. One end of the sliding rail 11 has a side wall An adjustment motor 12 is fixedly installed on the upper part. A bidirectional lead screw 13 is provided at the output end of the adjustment motor 12. When the adjustment motor 12 is started, its output end drives the bidirectional lead screw 13 to rotate. Two sets of sliding seats 14 are provided on the side walls at both ends of the bidirectional lead screw 13. The sliding seats 14 are threadedly connected to the bidirectional lead screw 13. The bottom wall of the positioning frame 7 is fixedly connected to the upper end of the sliding seats 14. As the lead screw rotates, the two sliding seats 14 are driven to move along the axis of the lead screw, thereby driving the two positioning frames 7 fixedly connected to them to move closer to the center of the frame 1.
[0024] Please see Figure 2 and Figure 3Two sets of guide rails 15 are fixedly installed on the bottom walls of both sides of the frame 1. Guide rods 16 are installed inside the guide rails 15. Two sets of guide seats 17 are installed on the side walls of both ends of the guide rods 16. The positioning frame 7 can drive the guide seats 17 on both sides to slide smoothly through the guide rods 16 on both sides. The guide seats 17 and guide rods 16 are slidably connected. The bottom walls of both sides of the positioning frame 7 are fixedly connected to the upper ends of the two sets of guide seats 17. A fixed bracket 18 is fixedly installed on the right end of the positioning frame 7. The positioning frame 7 can drive the guide seats 17 on both sides to slide smoothly through the guide rods 16 on both sides, and can drive the fixed bracket 18 to move synchronously. A drive motor 19 is fixedly installed inside the fixed bracket 18. A drive shaft 20 is installed at the output end of the drive motor 19. A cutting blade 21 is installed at one end of the drive shaft 20. When the drive motors 19 on both sides are started, their output ends drive the cutting blade 21 to rotate at high speed through the drive shaft 20, and perform precise trimming and cutting on both sides of the board according to the feeding progress of the board.
[0025] When the automatic sheet feeding device is in use, the EVA sheet to be processed is first placed inside the frame 1. This area is supported by multiple sets of feeding rollers 4 and conveying rollers 6 to ensure that the sheet is placed stably. Then, by starting the regulating motor 12, its output end drives the bidirectional lead screw 13 to rotate. The bidirectional lead screw 13 is threadedly connected to the sliding seats 14 on both sides. Therefore, as the lead screw rotates, the sliding seats 14 on both sides are driven to move along the lead screw axis, thereby driving the positioning frames 7 on both sides, which are fixedly connected to it, to move closer to the center of the frame 1. Since the bottom walls on both sides of the positioning frame 7 are fixedly connected to the upper ends of the two sets of guide seats 17, the positioning frame 7 can drive the guide seats 17 on both sides to slide smoothly through the guide rods 16 on both sides.
[0026] During this process, as the positioning frames 7 on both sides move towards the center, the multiple sets of transverse guide wheels 9 and longitudinal guide wheels 10 inside them gradually come into contact with the two side edges of the plate and generate slight pressure. The design of the multiple sets of transverse guide wheels 9 and longitudinal guide wheels 10 is intended to reduce the friction of the plate during the feeding process and effectively prevent the plate from shifting during the conveying process, thereby achieving precise positioning of the plate.
[0027] At the same time, the feeding motor 2 is started, and its output end drives the feeding roller 4 to rotate through the feeding shaft 3. The feeding roller 4 contacts the bottom of the board and generates friction, pushing the board forward in the set direction. Because the board is stably clamped by multiple sets of transverse guide wheels 9 and longitudinal guide wheels 10 on both sides, the feeding process is both smooth and accurate.
[0028] Furthermore, when edge trimming of the board is required, the two drive motors 19 are activated, and their output ends drive the cutting blade 21 to rotate at high speed via the drive shaft 20. Since the fixed bracket 18 is fixedly connected to the positioning frame 7, as the two positioning frames 7 move, the two fixed brackets 18, drive motors 19, and cutting blade 21 can move synchronously, ensuring that they always follow the feeding progress of the board and perform precise edge trimming and cutting on both sides of the board.
[0029] In summary, this utility model, through a series of precise mechanical linkage designs, achieves automatic feeding, precise positioning, and synchronous trimming and cutting of EVA sheets, greatly improving the efficiency and quality of sheet processing while reducing the difficulty and cost of manual operation, providing an efficient and convenient automated solution for the sheet processing industry.
[0030] Through the above steps, when the automatic sheet feeding device is in use, the EVA sheet to be processed is first placed inside the upper part of the frame 1. Then, by activating the bidirectional adjustment structure, the two side positioning frames 7 can be driven to move closer to the center of the frame 1. As the two side positioning frames 7 move towards the center, the multiple sets of transverse guide wheels 9 and longitudinal guide wheels 10 inside them gradually contact the two side edges of the sheet and generate slight pressure. The design of the multiple sets of transverse guide wheels 9 and longitudinal guide wheels 10 is intended to reduce the friction of the sheet during the feeding process and effectively prevent the sheet from shifting during the conveying process, thereby achieving precise positioning of the sheet. At the same time, The feeding structure is activated to propel the sheet material forward in the set direction. Because the sheet material is stably clamped by multiple sets of transverse guide wheels 9 and longitudinal guide wheels 10 on both sides, the feeding process is both smooth and accurate. Furthermore, the cutting structures on both sides are activated, following the feeding progress of the sheet material, to precisely trim and cut the edges of the sheet material. In summary, this utility model, through a series of precise mechanical linkage designs, achieves automatic feeding, precise positioning, and synchronous trimming and cutting of EVA sheet materials, greatly improving the efficiency and quality of sheet material processing while reducing the difficulty and cost of manual operation, providing an efficient and convenient automated solution for the sheet material processing industry.
[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. An automatic feeding device for EVA sheets with a positioning structure, comprising a frame (1), characterized in that: It also includes a feeding motor (2), a feeding shaft (3), a feeding roller (4), a conveying shaft (5), a conveying roller (6), a positioning frame (7), a mounting groove (8), a transverse guide wheel (9), and a longitudinal guide wheel (10). Two sets of feeding motors (2) are fixedly installed on the side wall of the frame (1). The output end of the feeding motor (2) is provided with a feeding shaft (3). One end of the feeding shaft (3) is rotatably connected to the inner wall of the frame (1). A feeding roller (4) is fixedly installed on the side wall of the feeding shaft (3). Multiple sets of conveying shafts (5) are installed inside the frame (1). A conveying roller (6) is fixedly installed on the side wall of the conveying shaft (5). Two sets of positioning frames (7) are installed on both sides above the frame (1). A mounting groove (8) is opened inside the positioning frame (7). Multiple sets of transverse guide wheels (9) are installed inside the mounting groove (8). Multiple sets of longitudinal guide wheels (10) are installed inside the mounting groove (8).
2. The automatic feeding device for EVA sheet material with a positioning structure according to claim 1, characterized in that: Both ends of the conveying shaft (5) are rotatably connected to the inner walls of both sides of the frame (1), both ends of the transverse guide wheel (9) are rotatably connected to the inner walls of both sides of the mounting groove (8), and both ends of the longitudinal guide wheel (10) are rotatably connected to the inner walls of both sides of the mounting groove (8).
3. The automatic feeding device for EVA sheet material with a positioning structure according to claim 1, characterized in that: A sliding rail (11) is fixedly installed on the bottom wall of the frame (1), and an adjusting motor (12) is fixedly installed on one side wall of the sliding rail (11). A two-way lead screw (13) is installed at the output end of the adjusting motor (12).
4. The automatic feeding device for EVA sheet material with a positioning structure according to claim 3, characterized in that: Two sets of sliding seats (14) are provided on the side walls of both ends of the double-acting screw (13). The sliding seats (14) are threadedly connected to the double-acting screw (13), and the bottom wall of the positioning frame (7) is fixedly connected to the upper end of the sliding seats (14).
5. The automatic feeding device for EVA sheet material with a positioning structure according to claim 1, characterized in that: Two sets of guide rails (15) are fixedly installed on the bottom walls of both sides of the frame (1). Guide rods (16) are installed inside the guide rails (15), and two sets of guide seats (17) are installed on the side walls at both ends of the guide rods (16).
6. An automatic feeding device for EVA sheets with a positioning structure according to claim 5, characterized in that: The guide seat (17) is slidably connected to the guide rod (16), and the bottom walls on both sides of the positioning frame (7) are fixedly connected to the upper ends of the two sets of guide seats (17). A fixed bracket (18) is fixedly installed on the right end of the positioning frame (7).
7. An automatic feeding device for EVA sheet material with a positioning structure according to claim 6, characterized in that: A drive motor (19) is fixedly installed inside the fixed bracket (18). A drive shaft (20) is provided at the output end of the drive motor (19). A cutting blade (21) is provided at one end of the drive shaft (20).