Production equipment and method of high-barrier polyester composite food packaging material

Abstract

The application discloses a high-barrier polyester composite food packaging material production equipment and method, a first guide roller, a second guide roller and a third guide roller are rotationally connected on a support, a vertical support is arranged between the second guide roller and the third guide roller on the support, a leveling plate is arranged on a lead screw, a transmission belt is arranged on the vertical support below the lead screw, a push rod is rotationally connected on the transmission belt, and a rubber ball is arranged on the output end of the push rod. The flat layer in a roll is placed on a packaging machine, then the flat layer is threaded through the first guide roller, the second guide roller and the third guide roller, and finally is conveyed through a conveying roller; the flat layer is located between the leveling plate and the push rod when passing through the second guide roller and the third guide roller, the flat layer is pushed by the push rod during conveying, wrinkles can be spread, and the flat layer can be leveled by the push of the leveling plate, so that corners do not appear during printing, and the production quality is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of packaging material production equipment, in particular to high-barrier polyester composite food packaging material production equipment and a method. BACKGROUND

[0002] In order to maintain the quality of food, prevent the food from deteriorating in the preservation, circulation and sales process, prevent microbial pollution, prevent chemical and physical changes, various foods must be packaged. In order to meet the needs of food packaging, according to the different types of food, the packaging materials are classified into metal can packaging, glass bottle packaging, paper container packaging and plastic packaging, and the plastic packaging develops rapidly.

[0003] Polyester composite materials are widely used in puffed food packaging, beverage food packaging and frozen food packaging. Before the polyester composite materials are made into packaging bags, they need to be processed into flat thin layers, and the required patterns are printed on the flat thin layers after conveying and processing, so that the production is completed. However, the flat thin layers need to be placed on the packaging machine for conveying before printing, but the flat thin layers will be wrinkled when being rolled, so that the flat thin layers will have positions without printing during conveying and printing, thereby affecting the quality of finished products. SUMMARY

[0004] One of the purposes of the application is to provide high-barrier polyester composite food packaging material production equipment and a method.

[0005] To achieve the above purposes, the technical scheme adopted by the application is as follows: high-barrier polyester composite food packaging material production equipment, comprising a packaging machine, a controller, a conveying roller and a placing rack, a support is arranged in the packaging machine between the placing rack and the conveying roller, a first guide roller, a second guide roller and a third guide roller are rotatably connected to the support, a vertical support is arranged between the second guide roller and the third guide roller, a lead screw is arranged on the top of the vertical support, a leveling plate is arranged on the lead screw, a transmission belt is arranged on the vertical support below the lead screw, a push rod is rotatably connected to the transmission belt, and a rubber ball is arranged on the output end of the push rod.

[0006] Preferably, the installation height of the first guide roller is lower than the placing height of the placing rack, the installation height of the second guide roller and the third guide roller is higher than the installation height of the first guide roller, the installation height of the second guide roller and the third guide roller is the same, and the installation height of the second guide roller and the third guide roller is lower than the conveying position of the conveying roller.

[0007] Preferably, the vertical frame is provided with a water platform arranged along the length direction of the support, the water platform is integrally arranged in T shape with the vertical frame, a vertical table is arranged on the water platform, the vertical table is integrally arranged in T shape with the water platform, a pulley is rotatably connected to the vertical table, and the pulley is located at the two ends of the vertical table respectively.

[0008] Preferably, a transmission belt is sleeved on the pulley of the vertical table, a fixing seat is rotatably connected to the transmission belt, a push rod is welded to the top end of the fixing seat, a gear is arranged on the fixing seat, a rack is engagedly connected to the gear, and the rack is arranged on the vertical table and arranged along the length direction of the vertical table.

[0009] Preferably, a first worm gear is arranged on the pulley of the vertical table, a first worm is engagedly connected to the first worm gear, the first worm is arranged on the output end of the servo motor, a linkage rod is mounted on the first worm, a second worm is mounted on the top end of the linkage rod, and the first worm and the second worm are coaxially arranged.

[0010] Preferably, a limiting rod is fixedly connected to the vertical frame, the limiting rod is arranged along the length direction of the water platform, the limiting rod is arranged in parallel with the lead screw, the limiting rod has the same length as the lead screw, the diameter of the limiting rod is smaller than the diameter of the lead screw, and a second worm gear is arranged on the input end of the limiting rod.

[0011] Preferably, a second worm is engagedly connected to the second worm gear, the second worm gear and the first worm gear are arranged in cross shape, and the second worm gear is located above the first worm gear.

[0012] Preferably, the moving seat is integrally arranged in rectangular shape, a lead screw and a limiting rod are respectively throughly connected to the moving seat, and the lead screw is threadedly connected to the moving seat.

[0013] Preferably, a sliding rod is slidably connected to the moving seat, the sliding rod is integrally arranged in T shape, the sliding rod is throughly connected to the moving seat, and a flattening plate is connected to the end of the sliding rod facing the flat layer.

[0014] To achieve the above purpose, another technical scheme adopted by the present application is a use method of a high-barrier polyester composite food packaging material production device, including the following steps:

[0015] S1: The coiled flat layer is placed on the placing rack, then one end of the flat layer that needs to be flattened is S-shapedly overlapped on the first guide roller, the second guide roller and the third guide roller, and finally the coiled flat layer is stretched and conveyed through the conveying roller, and the flat layer is located between the push rod and the flattening plate during the conveying process;

[0016] S2: after the servo motor is started, the servo motor drives the first worm and the second worm to reciprocatingly rotate, the meshed first worm wheel and the second worm wheel can be driven to rotate by the servo motor, when the first worm wheel rotates, the pulley is driven to rotate, the pulley can drive the transmission belt to rotate, the transmission belt is provided with a fixed seat, when the fixed seat moves to the rack position, the gear on the fixed seat can mesh with the rack, with the rotation of the transmission belt, the gear moves along the rack, the fixed seat can rotate, at this time, the lever makes a circular motion, so that the wrinkles of the flat sheet are spread apart;

[0017] S3: while the lever spreads apart the wrinkles, the lead screw is driven to rotate by the servo motor, the moving seat on the lead screw reciprocatingly moves along the lead screw, during the movement, the flattening plate contacts the flat sheet, cooperates with the lever, and the flattening plate can push the spread wrinkles flat during the movement, so that the flat sheet is unfolded during the conveying process, so that the flat sheet is fully printed.

[0018] Compared with the prior art, the beneficial effects of the present application are that:

[0019] The high-barrier polyester composite food packaging material production equipment and method, by installing the support on the packaging machine, the first guide roller, the second guide roller and the third guide roller can be installed on the support, the flat sheet can first pass through the first guide roller, the second guide roller and the third guide roller, the flat sheet will be located between the flattening plate and the lever when passing through the second guide roller and the third guide roller, the servo motor can be started when the flat sheet is conveyed, the first worm can drive the first worm wheel, the second worm can drive the second worm wheel, the transmission belt can drive the fixed seat to move to the rack position, the gear on the fixed seat can mesh with the rack, the lever can rotate, so that the wrinkles of the flat sheet are spread apart, at this time, the flattening plate moves along the lead screw with the moving seat, the flattening plate can push the three wrinkles flat, so that the flat sheet becomes flat during conveying, and the flat sheet can be fully printed without dead angles during conveying, thereby improving product quality.

[0020] The high-barrier polyester composite food packaging material production equipment and method, by the setting of the support, the vertical support can be fixed, the water platform is arranged on the vertical support, the stand can be installed on the water platform, the rack can be welded on the stand, when the fixed seat on the transmission belt rotates, the gear on the fixed seat moves to the rack position, so that the gear meshes with the rack, when the rack gear meshes with the rack, the transmission belt is in a horizontal path at this time, the gear will not be dislocated from the rack, so as to ensure the rotation of the lever and the spreading of the flat sheet. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The overall structure of the present application is shown Figure 1 .

[0022] Figure 2 The overall structure of the present application is shown in the figure Figure 2 .

[0023] Figure 3 The connection of the servo motor in the present application is shown in the figure.

[0024] Figure 4 The structure of the lever in the present application is shown in the figure.

[0025] Figure 5 The structure of the screw rod in the present application is shown in the figure.

[0026] Figure 6 The structure of the rack in the present application is shown in the figure.

[0027] Figure 7 The structure of the A area in the present application is shown in the figure. Figure 6

[0028] In the figure: 1, packaging machine; 2, controller; 3, conveying roller; 4, placing rack; 5, support; 6, first guide roller; 7, second guide roller; 8, third guide roller; 9, vertical rack; 10, servo motor; 11, first worm; 12, linkage rod; 13, second worm; 14, first worm wheel; 15, second worm wheel; 16, water platform; 17, rubber ball; 18, lever; 19, limiting rod; 20, smearing plate; 21, moving seat; 22, sliding rod; 23, screw rod; 24, rack; 25, pulley; 26, transmission belt; 27, vertical table; 28, fixed seat; 29, gear. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] As Figures 1 to 7 ​As shown, the present application provides a kind of high barrier polyester composite food packaging material production equipment, including packaging machine 1, controller 2, conveying roller 3 and placing rack 4, support 5 is equipped in packaging machine 1 between placing rack 4 and conveying roller 3, first guide roller 6, second guide roller 7 and third guide roller 8 are rotatably connected on support 5, vertical frame 9 is equipped on support 5 between second guide roller 7 and third guide roller 8, lead screw 23 is movably arranged on vertical frame 9, and rubbing plate 20 is arranged on lead screw 23, drive belt 26 is arranged on vertical frame 9 below lead screw 23, and drive belt 26 is rotatably connected with push rod 18, and rubber ball 17 is arranged on the output end of push rod 18.The flat layer of roll is placed on packaging machine 1, then the flat layer is passed through first guide roller 6, second guide roller 7 and third guide roller 8, and finally is conveyed by conveying roller 3, the flat layer is located between rubbing plate 20 and push rod 18 when passing through second guide roller 7 and third guide roller 8, the flat layer is pushed by push rod 18 during conveying, and the wrinkles can be spread, then the flat layer can be flattened by rubbing plate 20, so that four corners do not appear during printing, thereby improving production quality.

[0031] The installation height of first guide roller 6 is lower than the placement height of placing rack 4, the installation height of second guide roller 7 and third guide roller 8 is higher than the installation height of first guide roller 6, the installation height of second guide roller 7 and third guide roller 8 is the same, and the installation height of second guide roller 7 and third guide roller 8 is lower than the conveying position of conveying roller 3.The flat layer will be S-shaped when passing through first guide roller 6 and second guide roller 7, so as to slow down the conveying speed, and the flat layer can be supported by second guide roller 7 and third guide roller 8, so that push rod 18 and rubbing plate 20 can contact the flat layer.

[0032] Vertical frame 9 is provided with water platform 16, water platform 16 is arranged along the length direction of support 5, water platform 16 and vertical frame 9 are integrally arranged in T shape, vertical frame 27 is arranged on water platform 16, vertical frame 27 and water platform 16 are integrally arranged in T shape, pulley 25 is rotatably connected to vertical frame 27, and pulley 25 is located at both ends of vertical frame 27 respectively.Through the setting of water platform 16, vertical frame 27 can be fixed, pulley 25 can be installed on vertical frame 27, so that pulley 25 can drive drive belt 26 to move.

[0033] In the implementation, the first guide roller 6, the second guide roller 7 and the third guide roller 8 can be installed on the support 5 by installing the support 5 on the packaging machine 1, and the flat sheet can pass through the first guide roller 6, the second guide roller 7 and the third guide roller 8 first, and when passing through the second guide roller 7 and the third guide roller 8, the flat sheet is located between the smoothing plate 20 and the lever 18. When the flat sheet is conveyed, the servo motor 10 can be started, the first worm 11 can drive the first worm wheel 14, the second worm 13 can drive the second worm wheel 15, the transmission belt 26 can drive the fixed seat 28 to move to the position of the rack 24, the gear 29 on the fixed seat 28 can engage with the rack 24, and the lever 18 can rotate to spread the wrinkles of the flat sheet. At this time, the smoothing plate 20 can move along with the moving seat 21 along the lead screw 23, and the smoothing plate 20 can push the three wrinkles to make the flat sheet flat when conveying, so that the flat sheet can be fully printed without dead angle, thereby improving the product quality.

[0034] The pulley 25 of the stand 27 is sleeved with the transmission belt 26, the transmission belt 26 is rotatably connected with the fixed seat 28, the top end of the fixed seat 28 is welded with the lever 18, the fixed seat 28 is provided with the gear 29, the gear 29 is engaged with the rack 24, the rack 24 is arranged on the stand 27, and the rack 24 is arranged along the length direction of the stand 27. By installing the rotating fixed seat 28 on the transmission belt 26, the fixed seat 28 moves to the position of the rack 24 after following the transmission belt 26, so that the gear 29 on the fixed seat 28 engages with the rack 24, thereby ensuring that the fixed seat 28 can rotate when passing through the position of the rack 24, and finally realizing the rotation of the lever 18.

[0035] The pulley 25 on the stand 27 is provided with the first worm wheel 14, the first worm wheel 14 is engaged with the first worm 11, the first worm 11 is arranged on the output end of the servo motor 10, the first worm 11 is provided with the linkage rod 12, the top end of the linkage rod 12 is provided with the second worm 13, and the first worm 11 and the second worm 13 are coaxially arranged. The servo motor 10 can drive the first worm 11 and the second worm 13 to rotate, thereby simultaneously controlling the rotation of the first worm wheel 14 and the second worm wheel 15,

[0036] The vertical support 9 is fixedly connected with the limiting rod 19, the limiting rod 19 is arranged along the length direction of the water platform 16, the limiting rod 19 and the lead screw 23 are arranged in parallel with each other, the limiting rod 19 and the lead screw 23 have the same length, the diameter of the limiting rod 19 is smaller than that of the lead screw 23, and the input end of the limiting rod 19 is provided with the second worm. The limiting rod 19 can limit the movement of the moving seat 21, and the moving seat 21 will not rotate along with the lead screw 23 when moving along the lead screw 23, thereby ensuring that the moving seat 21 can move along the lead screw 23.

[0037] The second worm gear 15 is meshed with the second worm 13. The second worm gear 15 and the first worm gear 14 are arranged in a cross shape, with the second worm gear 15 located above the first worm gear 14. The different installation positions of the first worm gear 14 and the second worm gear 15 can prevent their movement trajectories from being mutually restricted.

[0038] The movable base 21 is rectangular in shape, and a lead screw 23 and a limiting rod 19 are threaded through and connected to the movable base 21. The movable base 21 can drive the smoothing plate 20 to move.

[0039] A slide rod 22 is slidably connected to the movable base 21. The slide rod 22 is T-shaped and runs through the movable base 21. A smearing plate 20 is connected to the end of the slide rod 22 facing the flat thin layer. By configuring the slide rod 22, it can change position according to the position of the flat thin layer when sliding on the movable base 21, thereby ensuring contact between the smearing plate 20 and the flat thin layer.

[0040] In practice, the vertical frame 9 can be fixed by setting the bracket 5. The vertical frame 9 is equipped with a water platform 16, on which the platform 27 can be installed. The rack 24 can be welded on the platform 27. When the transmission belt 26 drives the fixed seat 28 to rotate, the gear 29 on the fixed seat 28 will move to the position of the rack 24, thereby realizing the meshing of the gear 29 and the rack 24. When the gear 29 and the rack 24 are meshed, the transmission belt 26 is on a horizontal path, so the gear 29 will not disengage from the rack 24, thereby ensuring the rotation of the lever 18 and ensuring the unfolding of the flat thin layer.

[0041] like Figures 1-7 As shown, a method for using a high-barrier polyester composite food packaging material production equipment includes the following steps:

[0042] S1: The rolled flat sheet is placed on the placement rack 4, and then the end of the flat sheet is overlapped in an S-shape on the first guide roller 6, the second guide roller 7 and the third guide roller 8. Finally, the rolled flat sheet is stretched and conveyed by the conveyor roller 3. During the conveying process, the flat sheet will be located between the lever 18 and the smearing plate 20.

[0043] S2: after the servo motor 10 is started, the servo motor 10 drives the first worm 11 and the second worm 13 to reciprocatingly rotate, the meshed first worm wheel 14 and the second worm wheel 15 can be driven by the servo motor 10 to rotate, when the first worm wheel 14 rotates, the pulley 25 is driven to rotate, the pulley 25 drives the transmission belt 26 to rotate, the fixed seat 28 is installed on the transmission belt 26, when the fixed seat 28 moves to the rack 24 position, the gear 29 on the fixed seat 28 can mesh with the rack 24, along with the rotation of the transmission belt 26, the gear 29 moves along the rack 24, the fixed seat 28 can rotate, at this time, the push rod 18 makes a circular motion, so that the wrinkles of the flat sheet are pushed apart;

[0044] S3: while the push rod 18 pushes apart the wrinkles, the lead screw 23 is driven by the servo motor 10 to rotate, the moving seat 21 on the lead screw 23 reciprocatingly moves along the lead screw 23, during the movement, the flatting plate 20 contacts the flat sheet, cooperates with the push rod 18, and the flatting plate 20 can push apart the wrinkles during the movement, so that the flat sheet is unfolded during the conveying process, so that the flat sheet is fully printed.

[0045] The working principle of the present application is that: by installing the support 5 on the packaging machine 1, the first guide roller 6, the second guide roller 7 and the third guide roller 8 can be installed on the support 5, the flat sheet can first pass through the first guide roller 6, the second guide roller 7 and the third guide roller 8, and when passing through the second guide roller 7 and the third guide roller 8, the flat sheet is located between the flatting plate 20 and the push rod 18, along with the conveying of the flat sheet, the servo motor 10 can be started, the first worm 11 drives the first worm wheel 14, the second worm 13 drives the second worm wheel 15, the transmission belt 26 drives the fixed seat 28 to move to the rack 24 position, the gear 29 on the fixed seat 28 can mesh with the rack 24, the push rod 18 can rotate, so that the wrinkles of the flat sheet are unfolded, at this time, the flatting plate 20 moves along the lead screw 23 with the moving seat 21, the flatting plate 20 can push apart the three wrinkles, so that the flat sheet becomes flat during the conveying, the flat sheet can be fully printed without dead angle during the conveying, so that the product quality is improved, by the setting of the support 5, the vertical frame 9 can be fixed, the water platform 16 is arranged on the vertical frame 9, the stand 27 can be installed on the water platform 16, the rack 24 can be welded on the stand 27, when the fixed seat 28 rotates driven by the transmission belt 26, the gear 29 on the fixed seat 28 moves to the rack 24 position, so that the gear 29 meshes with the rack 24, when the gear 29 meshes with the rack 24, the transmission belt 26 is in a horizontal path, the gear 29 will not be disengaged from the rack 24, so that the rotation of the push rod 18 is ensured, and the unfolding of the flat sheet is ensured.

[0046] The foregoing describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A production equipment for high-barrier polyester composite food packaging materials, comprising a packaging machine (1), a controller (2), a conveyor roller (3), and a placement rack (4), characterized in that: A support (5) is provided inside the packaging machine (1) between the placement frame (4) and the conveyor roller (3). A first guide roller (6), a second guide roller (7), and a third guide roller (8) are rotatably connected to the support (5). A vertical frame (9) is provided on the support (5) between the second guide roller (7) and the third guide roller (8). A lead screw (23) is actuated on the vertical frame (9). The lead screw (23) is threadedly connected to the moving seat (21). A smearing plate (20) is provided on the lead screw (23). A transmission belt (26) is provided on the vertical frame (9) below the lead screw (23). A lever (18) is rotatably connected to the transmission belt (26). A rubber ball (17) is provided at the output end of the lever (18). A water platform (16) is provided on the vertical frame (9). A vertical platform (27) is provided on the water platform (16). A pulley (27) is provided on the vertical platform (27). 25) A transmission belt (26) is sleeved on the transmission belt (26), and a fixed seat (28) is rotatably connected to the transmission belt (26). A lever (18) is welded to the top of the fixed seat (28). A gear (29) is provided on the fixed seat (28). The gear (29) meshes with a rack (24). The rack (24) is set on the platform (27). The rack (24) is arranged along the length of the platform (27). A first worm gear (14) is provided on the pulley (25) on the platform (27). The first worm gear (14) meshes with a first worm (11). The first worm (11) is set on the output end of the servo motor (10). A linkage rod (12) is installed on the first worm (11). A second worm (13) is installed at the top of the linkage rod (12). The first worm (11) and the second worm (13) are coaxially arranged.

2. The production equipment for high-barrier polyester composite food packaging materials as described in claim 1, characterized in that: The installation height of the first guide roller (6) is lower than the placement height of the placement frame (4), the installation height of the second guide roller (7) and the third guide roller (8) is higher than the installation height of the first guide roller (6), the second guide roller (7) and the third guide roller (8) are at the same height, and the installation height of the second guide roller (7) and the third guide roller (8) is lower than the conveying position of the conveyor roller (3).

3. The production equipment for high-barrier polyester composite food packaging materials as described in claim 1, characterized in that: The water platform (16) is arranged along the length of the support (5). The water platform (16) and the vertical frame (9) are arranged in a T-shape. The platform (27) and the water platform (16) are arranged in a T-shape. The platform (27) is rotatably connected with a pulley (25). The pulley (25) is located at both ends of the platform (27).

4. The production equipment for high-barrier polyester composite food packaging materials as described in claim 3, characterized in that: A limiting rod (19) is fixedly connected to the vertical frame (9). The limiting rod (19) is arranged along the length of the platform (16). The limiting rod (19) and the lead screw (23) are arranged parallel to each other. The limiting rod (19) and the lead screw (23) have the same length. The diameter of the limiting rod (19) is smaller than the diameter of the lead screw (23). A second worm gear (15) is provided at the input end of the limiting rod (19).

5. The production equipment for high-barrier polyester composite food packaging materials as described in claim 4, characterized in that: The second worm wheel (15) is meshed with the second worm (13). The second worm wheel (15) and the first worm wheel (14) are arranged in a cross shape, with the second worm wheel (15) located above the first worm wheel (14).

6. The production equipment for high-barrier polyester composite food packaging materials as described in claim 1, characterized in that: The movable seat (21) is rectangular in shape, and a lead screw (23) and a limiting rod (19) are respectively connected through the movable seat (21).

7. The production equipment for high-barrier polyester composite food packaging materials as described in claim 1, characterized in that: A slide rod (22) is slidably connected to the movable seat (21). The slide rod (22) is T-shaped and is connected through the movable seat (21). A smearing plate (20) is connected to the end of the slide rod (22) facing the flat thin layer.

8. A method of using a production equipment for high-barrier polyester composite food packaging materials, applied to the production equipment described in any one of claims 1-7, characterized in that, Includes the following steps: S1: The rolled flat sheet is placed on the placement rack (4), and then the end of the flat sheet is overlapped in an S-shape on the first guide roller (6), the second guide roller (7) and the third guide roller (8). Finally, the rolled flat sheet is stretched and conveyed by the conveying roller (3). During the conveying process, the flat sheet will be located between the lever (18) and the smearing plate (20). S2: After the servo motor (10) is started, the servo motor (10) will drive the first worm (11) and the second worm (13) to rotate back and forth. The meshing first worm wheel (14) and the second worm wheel (15) can be driven by the servo motor (10) to rotate. When the first worm wheel (14) rotates, it will drive the pulley (25) to rotate. The pulley (25) can drive the transmission belt (26) to rotate. A fixed seat (28) is installed on the transmission belt (26). When the fixed seat (28) moves to the rack (24) position, the gear (29) on the fixed seat (28) can mesh with the rack (24). As the transmission belt (26) rotates, the gear (29) will move along the rack (24), and the fixed seat (28) can rotate. At this time, the lever (18) will make a circular motion, thereby opening up the wrinkles of the flat thin layer. S3: When the lever (18) opens up the wrinkles, the lead screw (23) will be driven by the servo motor (10) to rotate. The moving seat (21) on the lead screw (23) will move back and forth along the lead screw (23). During the movement, the smearing plate (20) will contact the flat thin layer. With the help of the lever (18), the smearing plate (20) can push the wrinkles that have spread out during the movement, thereby ensuring that the flat thin layer unfolds during the conveying process, so as to achieve full printing.

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