Low-cost EPE cushion packaging lining for display screen and preparation method of low-cost EPE cushion packaging lining

Abstract

The invention discloses a low-cost EPE cushion packaging lining for a display screen and a preparation method thereof.The low-cost EPE cushion packaging lining comprises a bottom lining body and a top lining body which are independent, the bottom lining body is of a rectangular structure, a plurality of bottom containing U-shaped grooves are formed in the surface of the bottom lining body, and the bottom containing U-shaped grooves are located in a supporting beam; the top lining body is of a rectangular structure, a plurality of top placing U-shaped grooves are formed in the surface of the top lining body, an L-shaped step is arranged on the side face of the top lining body in the length direction, and top lifting openings are formed in the two sides of the top lining body in the width direction. The cutting die has the advantages of being compact in structure, low in cost, capable of saving materials and the like, meanwhile, a multi-section combined structure in the cutting die is adopted, the number of the cutting die is reduced, the cutting die punching efficiency is improved, the cutting die is formed through hot melting bonding after punching, and the method has the advantages of being high in punching efficiency, low in die cost, high in bonding strength and the like; the packaging lining can be widely applied to the technical field of packaging linings of display screens.

Description

Technical Field

[0001] The invention belongs to the technical field of EPE cushioning packaging lining for display screens, and specifically, discloses a low-cost EPE cushioning packaging lining for display screens and a preparation method thereof. Background Art

[0002] With the growing market demand for display screens, the requirements for display screen packaging protection have become stricter, considering the fragility of display screen products and their high cost. At present, the packaging of display screens basically uses EPE packaging structure, and most of them use EPE upper and lower component modes to support and fix the display screen in the packaging box to obtain good shock-proof and buffering effects.

[0003] Patent application number "202023110707.8" introduces an EPE packaging structure for display screens, including a screen protection plate structure, a protective back plate, and a side support protection structure. The side support protection structures are two groups of identical structures and symmetrically supported on both sides of the display screen. The display screen is supported by the screen protection plate structure. After the side support protection structures on both sides are finally removed, the screen protection plate structure provides the final support for the display screen. Patent application number "202121253366.1" introduces a buffer packaging structure for a flat-panel display screen, including four corner protection structures respectively located at the four corners of the flat-panel display screen and a number of protective supports. The corner protection structure includes a wide corner protection groove and a narrow corner protection groove. The protective support includes a wide protective support groove and a narrow protective support groove. Each corner of the flat-panel display screen is engaged with the corner protection structure through a wide corner protection groove or a narrow corner protection groove. The buffer structure puts the flat-panel display screen in a suspended and fastened state, reducing the impact damage to the screen and avoiding damage caused by shaking of the screen inside the package. For example, patent application No. "201310483609.4" discloses a cushioning packaging device and a cushioning packaging box for large-size displays, which are suitable for cushioning packaging of large-size displays and providing good cushioning. During the packaging and transportation process, the display screen and the bracket can be connected to each other and placed in the cushioning packaging device as a whole. After packaging, the display bracket can be cushioned and protected to prevent damage due to swinging or movement.

[0004] Based on the above-mentioned related technologies, the existing cushioning packaging lining for display screens still has the problem of large material consumption and high cost in the integral packaging method, and there is often a large waste and low efficiency in the design process of the material punching die. Therefore, the existing EPE cushioning packaging lining for display screens and the preparation method need to be further improved. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a low-cost EPE cushioning packaging lining for a display screen, which has the characteristics of compact structure, low cost, and little material consumption. At the same time, the present invention also provides a preparation method of the low-cost EPE cushioning packaging lining for a display screen, which adopts a multi-section combination structure inside a knife die to reduce the number of knife dies and improve the knife die punching efficiency. After punching, the liner is formed by hot melt bonding. This method has the characteristics of high punching efficiency, low mold cost, and high bonding strength, and can be widely used in the technical field of packaging linings for display screens.

[0006] In order to solve the above problems, the low-cost EPE cushioning packaging lining for display screens of the present invention comprises an independent bottom lining and a top lining, wherein the bottom lining is a rectangular structure, and a plurality of bottom-placing U-shaped grooves are provided on the surface, and the bottom-placing U-shaped grooves are located on the supporting beam; the bottom lining is provided with short rectangular holes and rectangular openings on the sides along the length direction, and bottom lifting openings are provided on both sides along the width direction; the top lining is a rectangular structure, and a plurality of top-placing U-shaped grooves are provided on the surface, and L-shaped steps are provided on the sides along the length direction, and top lifting openings are provided on both sides along the width direction; a bottom hollow structure and a top hollow structure are respectively provided in the middle of the bottom lining and the top lining.

[0007] As an improvement, the bottom lining and the top lining have the same length and width.

[0008] As an improvement, the bottom U-shaped groove and the top U-shaped groove have the same size, are four in number, and are symmetrically distributed.

[0009] As an improvement, the surfaces of the bottom lining and the top lining are provided with short reinforcing ribs and long reinforcing ribs respectively.

[0010] As an improvement, the short reinforcing ribs and the long reinforcing ribs are both U-shaped structures.

[0011] As an improvement, the bottom lining and the top lining are made of anti-static high-density EPE material.

[0012] The present invention also provides a method for preparing the low-cost EPE cushioning packaging lining for the display screen, which specifically comprises the following steps: (1) Sheet cutting: EPE sheets are cut into four specifications suitable for split stamping. The thickness of a single square sheet is controlled at 40~70mm according to demand; (2) Punching and die-cutting: Push the four specifications of square plates divided above into a 100T four-column cutting machine through the first template for punching and die-cutting to obtain symmetrical groups of first plates, push them into a 150T four-column cutting machine through the second template for punching and die-cutting to obtain a single second plate, push them into a 100T four-column cutting machine through the third template for punching and die-cutting to obtain symmetrical groups of third plates, push them into a 150T four-column cutting machine through the fourth template for punching and die-cutting to obtain a single fourth plate. During punching, the template blades are all facing upwards, and the punching time is set to 0.4~0.8s, the holding time is 0.5~1.0s, and the return time is 0.5~1.5s; (4) bonding the bottom lining: aligning and bonding a plurality of first plates in sequence to the front surface of the second plate, and aligning and bonding a plurality of third plates in sequence to the back surface of the second plate, thereby preparing the bottom lining, and the instantaneous bonding temperature is controlled at 350-400°C; (5) Top lining bonding: aligning and bonding a plurality of first plates in sequence to the front surface of a fourth plate, and aligning and bonding a plurality of third plates in sequence to the back surface of the fourth plate, thereby preparing the top lining, and the instantaneous bonding temperature is controlled at 350-400°C; (6) Inspection and packaging: The prepared bottom lining and top lining products are inspected for appearance and size. After passing the inspection, the bottom lining and top lining are packed separately in sets and unpacked.

[0013] As an improvement, the first template and the third template in step (2) are both multi-piece square templates, with a plurality of groups of hollow die-cutting high knives and broken knives arranged side by side on the surface, and an elastic buffer pad with a thickness of 2 to 5 mm higher than that of the high knife embedded in the template.

[0014] As an improvement, the first template punches out a plurality of the support beams, and the third template punches out a plurality of back support strips with beveled edges.

[0015] As an improvement, the second template and the fourth template in step (2) are both single-piece square templates, with a plurality of groups of hollow die-cutting high knives and broken knives arranged side by side on the surface, and an elastic buffer pad with a thickness of 2 to 5 mm higher than that of the high knife embedded in the template, and used to punch out the main structures of the bottom lining and the top lining respectively.

[0016] As an improvement, the first template, the second template, the third template and the fourth template in step (2) are all laser cutting templates, which are composed of a high-strength wooden substrate and a punching blade, and the punching blade is 30-50 mm higher than the high-strength wooden substrate.

[0017] The beneficial effects of the present invention are as follows: a low-cost EPE cushioning packaging lining for a display screen has the characteristics of compact structure, material saving, low production cost, good anti-seismic cushioning effect, etc., by adopting a split combined structure of a bottom lining and a top lining, and arranging a plurality of hollow structures on the surface of the bottom lining and the top lining, the material usage is effectively saved and the material cost is reduced; by adopting a reinforcing rib structure on the surface of the lining, the bearing capacity of the display screen is improved, thereby improving the anti-seismic cushioning performance.

[0018] At the same time, the present invention also provides a method for preparing the low-cost EPE cushioning packaging lining for the display screen, which is punched out by using four templates, wherein the first template and the third template are set as symmetrical multi-group structures, punching out 4 to 8 bonding structures for the bottom lining and the top lining surface, and the second template and the fourth template are set as a single-piece main structure, which is used to punch out complex symmetrical bottom lining and top lining structures with hollowing. The packaging lining structure is first designed as a split structure that is universal up and down, and then uniformly punched through the mold, which greatly reduces the number of molds, compared with the conventional 6 to 8 molds, it is reduced by more than 50%. In addition, in the actual mold punching process, the embedding of the EPE blank is the most influential in production efficiency. By using the elastic buffer pad of the present invention that is 2 to 5 mm higher than the high knife, the embedding problem of the plate after punching is avoided, and the service life of the buffer pad is equal to or even higher than the service life of the mold, which effectively improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : A schematic diagram of the structure of the bottom lining of the low-cost EPE cushioning packaging lining for display screens of the present invention; Figure 2 : A schematic diagram of the structure of the top lining of the low-cost EPE cushioning packaging lining for display screens of the present invention; Figure 3 : Schematic diagram of the first template structure for punching the low-cost EPE cushioning packaging liner for display screens of the present invention; Figure 4 : Schematic diagram of the second template structure for punching the liner of the low-cost EPE cushioning packaging for display screens of the present invention; Figure 5 : Schematic diagram of the third template structure for punching the low-cost EPE cushioning packaging liner for display screens of the present invention; Figure 6 : Schematic diagram of the fourth template structure for punching the low-cost EPE cushioning packaging liner for display screens of the present invention.

[0020] In the figure: 1. bottom lining; 2. top lining; 3. first template; 4. second template; 5. third template; 6. fourth template; 11. bottom U-shaped groove; 12. support beam; 13. short rectangular hole; 14. rectangular opening; 15. bottom lifting opening; 16. bottom hollow structure; 17. bottom chamfer; 21. top U-shaped groove; 22. L-shaped step; 23. top lifting opening; 24. top hollow structure; 25. top chamfer. DETAILED DESCRIPTION

[0021] In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with embodiments.

[0022] like Figure 1~2 As shown, the low-cost EPE cushioning packaging lining for display screens of the present invention comprises an independent bottom lining 1 and a top lining 2, wherein the bottom lining 1 is a rectangular structure, and a plurality of bottom-placing U-shaped grooves 11 are arranged on the surface, and the bottom-placing U-shaped grooves 11 are located on a support beam 12; the bottom lining 1 is provided with short rectangular holes 13 and a rectangular opening 14 on the side along the length direction, and bottom lifting openings 15 are arranged on both sides along the width direction; the top lining 2 is a rectangular structure, and a plurality of top-placing U-shaped grooves 21 are arranged on the surface, and an L-shaped step 22 is arranged on the side along the length direction, and top lifting openings 23 are arranged on both sides along the width direction; a bottom hollow structure 16 and a top hollow structure 24 are respectively arranged in the middle of the bottom lining 1 and the top lining 2; specifically, the bottom lining 1 is provided with bottom chamfers 17 on the four corners, and the top lining 2 is provided with top chamfers 25 on the corners.

[0023] Furthermore, the bottom lining 1 and the top lining 2 have the same length and width, so that they can be easily packed inside a box.

[0024] Furthermore, the bottom U-shaped groove 11 and the top U-shaped groove 21 have the same size, and are provided with four, and are symmetrically distributed on the left and right, so as to facilitate the support and fixation of the display screen. At the same time, the same size can be used for punching with the same mold, thereby improving production efficiency and reducing the number of mold openings.

[0025] Furthermore, short reinforcing ribs and long reinforcing ribs are respectively provided on the surfaces of the bottom lining 1 and the top lining 2. Specifically, the short reinforcing ribs and the long reinforcing ribs are both U-shaped structures.

[0026] Furthermore, the bottom lining 1 and the top lining 2 are made of antistatic high-density EPE material. Specifically, the density of the EPE material is 20-30KG / M. 3 .

[0027] The present invention also provides a method for preparing the low-cost EPE cushioning packaging lining for the display screen, such as Figures 3 to 6As shown, the first template 3, the second template 4, the third template 5, and the fourth template 6 are respectively used for punching, which specifically includes the following steps: (1) Sheet cutting: Cut the EPE sheet into four specifications suitable for separate stamping of four templates. The thickness of a single square sheet is controlled at 40~70mm according to demand; (2) Punching and die-cutting: The four specifications of square plates divided above are pushed into a 100T four-column cutting machine through a first template 3 for punching and die-cutting to obtain symmetrical groups of first plates, pushed into a 150T four-column cutting machine through a second template 4 for punching and die-cutting to obtain a single second plate, pushed into a 100T four-column cutting machine through a third template 5 for punching and die-cutting to obtain symmetrical groups of third plates, pushed into a 150T four-column cutting machine through a fourth template 6 for punching and die-cutting to obtain a single fourth plate. During punching, the template blades are all facing upwards, and the punching time is set to 0.4~0.8s, the holding time is 0.5~1.0s, and the return time is 0.5~1.5s; (4) bonding the bottom lining: aligning and bonding a plurality of first plates in sequence to the front surface of the second plate, and aligning and bonding a plurality of third plates in sequence to the back surface of the second plate, thereby preparing the bottom lining 1, and the instantaneous bonding temperature is controlled at 350-400°C; (5) Top lining bonding: aligning and bonding a plurality of first plates in sequence to the front surface of a fourth plate, and aligning and bonding a plurality of third plates in sequence to the back surface of the fourth plate, thereby preparing the top lining 2, and the instantaneous bonding temperature is controlled at 350-400°C; (6) Inspection and packaging: The prepared bottom lining and top lining products are inspected for appearance and size. After passing the inspection, the bottom lining and top lining are packed separately in sets and unpacked.

[0028] Furthermore, the first template 3 and the third template 5 in step (2) are both multi-piece square templates, and a plurality of groups of hollow die-cutting high knives and broken knives are arranged side by side on the surface. An elastic buffer pad with a thickness of 2 to 5 mm higher than that of the high knife is embedded in the template. Specifically, the elastic buffer pad is made of one of high-density pearl cotton, EVA rubber or polyurethane plastic material.

[0029] Furthermore, the first template 3 punches out a plurality of the support beams 12, and the third template 5 punches out a plurality of back support strips with beveled edges.

[0030] Furthermore, the second template 4 and the fourth template 6 in step (2) are both single-piece square templates, with a plurality of groups of hollow die-cutting high knives and broken knives arranged side by side on the surface, and an elastic buffer pad with a thickness of 2 to 5 mm higher than that of the high knife embedded inside the template, and respectively used to punch out the main structures of the bottom lining and the top lining.

[0031] Furthermore, the first template, the second template, the third template and the fourth template in step (2) are all laser cutting templates, which are composed of a high-strength wooden substrate and a punching blade, and the punching blade is 30-50 mm higher than the high-strength wooden substrate. Example

[0032] (1) Cutting of sheet materials: Cut the density of the sheet material to 20KG / M 3 The EPE sheet is cut into four specifications suitable for split stamping of four templates. The length and width specifications are 1150*275mm, 1600*340mm, 1600*280 and 1600*320mm single square plates, and the thickness of the square plates is 50mm. Specifically, the square plate can be composed of two EPE pearl cotton boards with a thickness of 20mm and one EPE pearl cotton board with a thickness of 10mm. (2) Punching and die-cutting: The four specifications of square plates divided above are pushed into a 100T four-column cutting machine through a first template 3 for punching and die-cutting to obtain symmetrical groups of first plates, pushed into a 150T four-column cutting machine through a second template 4 for punching and die-cutting to obtain a single second plate, pushed into a 100T four-column cutting machine through a third template 5 for punching and die-cutting to obtain symmetrical groups of third plates, pushed into a 150T four-column cutting machine through a fourth template 6 for punching and die-cutting to obtain a single fourth plate. During punching, the template blades are all facing upwards, and the punching time is set to 0.4s, the holding time to 0.5s, and the return time to 0.5s; (4) bonding the bottom lining: aligning and bonding a plurality of first plates in sequence to the front surface of the second plate, and aligning and bonding a plurality of third plates in sequence to the back surface of the second plate, thereby preparing the bottom lining 1, and the instantaneous bonding temperature is controlled at 350°C; (5) Top lining bonding: aligning and bonding a plurality of first plates in sequence to the front surface of a fourth plate, aligning and bonding a plurality of third plates in sequence to the back surface of the fourth plate, thereby preparing the top lining 2, and the instantaneous bonding temperature is controlled at 350°C; (6) Inspection and packaging: The prepared bottom lining and top lining products are inspected for appearance and size. After passing the inspection, the bottom lining and top lining are packed separately in sets and unpacked. Example

[0033] (1) Cutting of sheet materials: Cut the density of the sheet materials to 25 kg / m 3 The EPE sheet is cut into four specifications suitable for split stamping of four templates. The length and width specifications are 1150*275mm, 1600*340mm, 1600*280 and 1600*320mm single square plates, and the thickness of the square plates is 50mm. Specifically, the square plate can be composed of two EPE pearl cotton boards with a thickness of 20mm and one EPE pearl cotton board with a thickness of 10mm. (2) Punching and die-cutting: The four specifications of square plates divided above are pushed into a 100T four-column cutting machine through a first template 3 for punching and die-cutting to obtain symmetrical groups of first plates, pushed into a 150T four-column cutting machine through a second template 4 for punching and die-cutting to obtain a single second plate, pushed into a 100T four-column cutting machine through a third template 5 for punching and die-cutting to obtain symmetrical groups of third plates, pushed into a 150T four-column cutting machine through a fourth template 6 for punching and die-cutting to obtain a single fourth plate. During punching, the template blades are all facing upwards, and the punching time is set to 0.6s, the holding time is 0.7s, and the return time is 0.8s; (4) bonding of the bottom lining: aligning and bonding a plurality of first plates in sequence to the front surface of the second plate, and aligning and bonding a plurality of third plates in sequence to the back surface of the second plate, thereby preparing the bottom lining 1, and the instantaneous bonding temperature is controlled at 380°C; (5) Top lining bonding: aligning and bonding a plurality of first plates in sequence to the front surface of a fourth plate, aligning and bonding a plurality of third plates in sequence to the back surface of the fourth plate, thereby preparing the top lining 2, and the instantaneous bonding temperature is controlled at 380°C; (6) Inspection and packaging: The prepared bottom lining and top lining products are inspected for appearance and size. After passing the inspection, the bottom lining and top lining are packed separately in sets and unpacked. Example

[0034] (1) Cutting of sheet materials: Cut the density of the sheet materials to 30 kg / m 3 The EPE sheet is cut into four specifications suitable for split stamping of four templates. The length and width specifications are 1150*275mm, 1600*340mm, 1600*280 and 1600*320mm single square plates, and the thickness of the square plates is 50mm. Specifically, the square plate can be composed of two EPE pearl cotton boards with a thickness of 20mm and one EPE pearl cotton board with a thickness of 10mm. (2) Punching and die-cutting: The four specifications of square plates divided above are pushed into a 100T four-column cutting machine through a first template 3 for punching and die-cutting to obtain symmetrical groups of first plates, pushed into a 150T four-column cutting machine through a second template 4 for punching and die-cutting to obtain a single second plate, pushed into a 100T four-column cutting machine through a third template 5 for punching and die-cutting to obtain symmetrical groups of third plates, pushed into a 150T four-column cutting machine through a fourth template 6 for punching and die-cutting to obtain a single fourth plate. During punching, the template blades are all facing upwards, and the punching time is set to 0.8s, the holding time is 1.0s, and the return time is 1.5s; (4) bonding the bottom lining: aligning and bonding a plurality of first plates in sequence to the front surface of the second plate, and aligning and bonding a plurality of third plates in sequence to the back surface of the second plate, thereby preparing the bottom lining 1, and the instantaneous bonding temperature is controlled at 400°C; (5) Top lining bonding: aligning and bonding a plurality of first plates in sequence to the front surface of a fourth plate, and aligning and bonding a plurality of third plates in sequence to the back surface of the fourth plate, thereby preparing the top lining 2, and the instantaneous bonding temperature is controlled at 400°C; (6) Inspection and packaging: The prepared bottom lining and top lining products are inspected for appearance and size. After passing the inspection, the bottom lining and top lining are packed separately in sets and unpacked.

[0035] Finally, it should be noted that those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A low-cost EPE cushioning packaging lining for display screens, characterized in that: The invention comprises an independent bottom lining (1) and a top lining (2), wherein the bottom lining (1) is a rectangular structure and is provided with a plurality of bottom-placed U-shaped grooves (11) on its surface, wherein the bottom-placed U-shaped grooves (11) are located on a support beam (12); the bottom lining (1) is provided with short rectangular holes (13) and rectangular openings (14) on the side along the length direction, and bottom lifting openings (15) are provided on both sides along the width direction; the top lining (2) is a rectangular structure and is provided with a plurality of top-placed U-shaped grooves (21) on its surface, wherein the top lining (2) is provided with L-shaped steps (22) on the side along the length direction, and top lifting openings (23) are provided on both sides along the width direction; and a bottom hollow structure (16) and a top hollow structure (24) are provided in the middle of the bottom lining (1) and the top lining (2), respectively.

2. The low-cost EPE cushioning packaging liner for display screen according to claim 1 is characterized in that: The bottom lining body and the top lining body have the same length and width, and are respectively provided with short reinforcing ribs and long reinforcing ribs on their surfaces.

3. The low-cost EPE cushioning packaging liner for display screen according to claim 1, characterized in that: The bottom U-shaped groove (11) and the top U-shaped groove (21) are of the same size, four of each are provided, and are symmetrically distributed.

4. The low-cost EPE cushioning packaging liner for display screen according to claim 1, characterized in that: The bottom lining (1) and the top lining (2) are made of anti-static high-density EPE material.

5. A method for preparing the low-cost EPE cushioning packaging lining for the display screen according to claim 1, characterized in that: The following steps are involved: (1) Sheet cutting: EPE sheets are cut into four specifications suitable for split stamping. The thickness of a single square sheet is controlled at 40~70mm according to demand; (2) Punching and die-cutting: the four types of square plates divided above are pushed into a 100T four-column cutting machine through a first template (3) for punching and die-cutting to obtain symmetrical groups of first plates, pushed into a 150T four-column cutting machine through a second template (4) for punching and die-cutting to obtain a single second plate, pushed into a 100T four-column cutting machine through a third template (5) for punching and die-cutting to obtain symmetrical groups of third plates, pushed into a 150T four-column cutting machine through a fourth template (6) for punching and die-cutting to obtain a single fourth plate. During punching, the template blades are all facing upwards, and the punching time is set to 0.4-0.8s, the holding time is 0.5-1.0s, and the return time is 0.5-1.5s; (4) bonding the bottom lining: aligning and bonding a plurality of first plates in sequence to the front surface of the second plate, and aligning and bonding a plurality of third plates in sequence to the back surface of the second plate, thereby preparing the bottom lining (1), and the instantaneous bonding temperature is controlled at 350-400°C; (5) Top lining bonding: aligning a plurality of first plates in sequence and bonding them to the front side of a fourth plate, aligning a plurality of third plates in sequence and bonding them to the back side of the fourth plate, thereby preparing the top lining (2), wherein the instantaneous bonding temperature is controlled at 350-400°C; (6) Inspection and packaging: The prepared bottom lining and top lining products are inspected for appearance and size. After passing the inspection, the bottom lining and top lining are packed separately in sets and unpacked.

6. The method for preparing a combined EPE cushioning packaging liner for a large-size display screen according to claim 5, characterized in that: The first template (3) and the third template (5) in step (2) are both multi-piece square templates, with a plurality of groups of hollow die-cutting high knives and broken knives arranged side by side on the surface, and an elastic buffer pad with a thickness of 2 to 5 mm higher than that of the high knives embedded inside the template.

7. The method for preparing a low-cost EPE cushioning packaging lining for a display screen according to claim 6, characterized in that: The first template (2) punches out a plurality of the support beams (12), and the third template (5) punches out a plurality of back support strips with beveled edges.

8. According to the method for preparing low-cost EPE cushioning packaging lining for display screens as described in claim 5, the second template (4) and the fourth template (6) in step (2) are both single-piece square templates, and a plurality of groups of hollow die-cutting high knives and broken knives are arranged side by side on the surface. An elastic cushioning pad with a thickness of 2 to 5 mm higher than that of the high knife is embedded in the template, and is used to punch out the main structures of the bottom lining and the top lining respectively.

9. The method for preparing a low-cost EPE cushioning packaging lining for a display screen according to claim 5, characterized in that: The first template (3), the second template (4), the third template (5) and the fourth template (6) in the step (2) are all laser cutting templates, which are composed of a high-strength wooden substrate and a punching blade, and the punching blade is 30 to 50 mm higher than the high-strength wooden substrate.

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