A new material carton printing quality on-line detection device

Abstract

The application discloses a new material carton printing quality online detection device, and belongs to the field of green moisture-proof and antibacterial packaging box detection. The new material carton printing quality online detection device comprises a detection bin and a conveying mechanism, the side surface of the detection bin is equipped with a power rod driven by a linear motor one, and the side surface of the power rod is equipped with a clamping plate driven by a linear motor two. The new material carton printing quality online detection device is provided with the power rod and the clamping plate, can clamp the green moisture-proof and antibacterial new type packaging box of medical equipment, drive the packaging box to move upwards by a certain distance, and cooperate with a spring one, a special-shaped rod, a moving plate one, a fixed block, a spring two, a toothed rod one, a moving rod one, a rotating rod one, a gear one and an arc-shaped plate, so that the originally closed detection probe can be opened during detection, and the detection probe is closed during non-detection, thereby preventing a large amount of dust from adhering to the surface of the detection probe, and improving the accuracy of detection results of the device.

Description

Technical Field

[0001] This invention belongs to the field of green moisture-proof and antibacterial packaging box testing, specifically concerning an online testing device for the printing quality of new material paper boxes. Background Technology

[0002] A new type of green, moisture-proof, and antibacterial packaging box for medical equipment uses kraft paper as the main green packaging material, fully utilizing its characteristics of high toughness, tear resistance, moisture resistance, and environmental biodegradability. Simultaneously, it incorporates inorganic nano-antibacterial materials, achieving long-lasting broad-spectrum antibacterial effects through three innovative processes: nano-silver coated PE / PET film, silver-titanium dioxide composite film, and silver nanowire nonwoven fabric. This packaging box combines the advantages of being green and environmentally friendly, having high structural strength, good moisture resistance, and stable antibacterial and bacteriostatic effects. It effectively prevents medical equipment from becoming damp, contaminated, and prone to microbial growth during storage and transportation, and is suitable for sterile protective packaging of various medical devices, showing promising application prospects. As the requirements for anti-counterfeiting, aesthetics, and functionality increase for this new type of green, moisture-proof, and antibacterial packaging box for medical equipment, printing materials and processes are undergoing innovation.

[0003] Chinese patent CN222189147U, published on December 17, 2024, discloses an online inspection device for paper box printing quality, which includes a worktable, an inspection lens fixedly installed above the fixed ring, a fixed rod fixedly installed on the surface of the inspection table, and a sliding groove II opened inside the fixed rod.

[0004] In the aforementioned application document, the conveyor belt will transport the cardboard box. When it passes over the detection lens, the detection lens will perform a rapid detection operation. However, when the device is used in areas with a lot of dust, and after being left to stand for a period of time, the detection probe will be covered with a lot of dust, which will affect the accuracy of its detection results. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a novel online inspection device for the printing quality of paper boxes, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides an online inspection device for the printing quality of new material paper boxes, including an inspection chamber and a conveying mechanism. A power rod driven by a linear motor is mounted on the side of the inspection chamber, and a clamping plate driven by a linear motor is mounted on the side of the power rod. An inspection probe is mounted inside the inspection chamber. A shaped rod is connected inside the inspection chamber by a spring. A movable plate is fixedly connected to the bottom of the shaped rod. A rotating rod is rotatably connected to the bottom of the inspection chamber. A transmission component for transmission is mounted between the shaped rod and the rotating rod. An arc-shaped plate is mounted at the bottom of the rotating rod. The bottom of the testing chamber is equipped with a processing component, and the interior of the testing chamber is equipped with a support component.

[0007] Preferably, the transmission component includes a fixed block fixed inside the detection chamber. A gear is connected to the side of the fixed block via a spring. A movable rod is fixedly connected to the side of the gear, and a gear is fixedly connected to the outer side of the movable rod. The gear meshes with the gear. This device allows the normally sealed detection probe to be opened during detection and closed when not in use, preventing dust accumulation on the probe surface and improving the accuracy of the detection results.

[0008] Preferably, the movable plate is located at the top of the clamping plate, and the movable plate is in contact with the clamping plate.

[0009] Preferably, the first movable rod is located at the top of the irregular rod, and the first movable rod is in contact with the irregular rod.

[0010] Preferably, the processing component includes a second movable rod fixed to one side of the movable plate, a second gear fixedly connected to the top of the second movable rod, a fixed rod fixedly connected inside the detection chamber, a second rotating rod rotatably connected to the side of the fixed rod, a second gear fixedly connected to the outside of the second rotating rod, the second gear meshing with the second gear, and a brush fixedly connected to the bottom of the second rotating rod. By configuring this processing component, dust and other impurities on the surface of the detection probe can be treated once when the arc-shaped plate is opened, further improving the accuracy of subsequent detection results.

[0011] Preferably, the arc-shaped plate has a through opening, the cross-sectional shape of which is adapted to the cross-sectional shape of the rotating rod.

[0012] Preferably, the support assembly includes a fixed plate fixed to the side of the clamping plate, a through telescopic rod slidably connected to the side of the detection chamber, the fixed plate being fixed to the telescopic end of the telescopic rod, a movable plate being connected to the side of the telescopic end of the telescopic rod via a spring three, a wedge being fitted to the side of the movable plate two, a movable rod three being fitted to the side of the power rod, a pressing rod being fixedly connected to the side of the movable plate two, and a support plate being rotatably connected to the bottom of the clamping plate via a torsion spring rod. By configuring the support assembly, the support plate can be rotated to the bottom position of the packaging box during the detection process to provide support and prevent the packaging box from accidentally falling during detection, making the device more stable.

[0013] Preferably, the third movable rod is located on the side of the inclined block, and the third movable rod is in contact with the inclined block.

[0014] Preferably, the support plate is located on the side of the extrusion rod, and the support plate is in contact with the extrusion rod.

[0015] The advantages of this application are: (1) In this application, a power rod and clamping plate are used to clamp the new green moisture-proof and antibacterial packaging box of medical equipment and move the packaging box upward a certain distance. With the help of spring one, special-shaped rod, moving plate one, fixing block, spring two, toothed rod one, moving rod one, rotating rod one, gear one and arc plate, the detection probe that was originally closed can be opened when testing, and the detection probe can be closed when not testing, thereby preventing a large amount of dust from adhering to the surface of the detection probe and improving the accuracy of the device's detection results.

[0016] (2) In this application, when the movable plate moves upward, it can drive the movable rod two fixedly connected to it to move upward. In conjunction with the movable rod two, the toothed rod two, the fixed rod, the rotating rod two, the gear two and the brush rod, the dust and other impurities on the surface of the detection probe can be treated once when the arc plate is opened, which further improves the accuracy of subsequent detection results.

[0017] (3) In this application, the power rod drives the clamping plate to move to the side first. When clamping the packaging box, the clamping plate then drives the packaging box to move upward a certain distance. With the help of the fixed plate, telescopic rod, spring three, moving plate two, inclined block, moving rod three, squeezing rod and torsion spring rod, the support plate can be rotated to the bottom position of the packaging box during the inspection process to support that position and prevent the packaging box from falling accidentally during the inspection, making the use of the device more stable. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the overall cross-sectional three-dimensional structure from another perspective of the present invention; Figure 4 This is a three-dimensional structural diagram of some parts of the present invention; Figure 5 This is a three-dimensional structural diagram of some parts of the present invention; Figure 6 This is a three-dimensional structural diagram of the processing component of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is a schematic diagram of the support component structure of the present invention; Figure 9 This is a three-dimensional structural diagram of some parts of the support component of the present invention.

[0019] Explanation of key figure labels: 100. Detection chamber; 200. Power rod; 300. Conveying mechanism; 400. Clamping plate; 500. Detection probe; 601. Spring 1; 602. Irregularly shaped rod; 603. Moving plate 1; 604. Fixing block; 605. Spring 2; 606. Gear 1; 607. Moving rod 1; 608. Rotating rod 1; 609. Gear 1; 610. Arc plate; 700. Processing component; 701. Moving rod two; 702. Gear two; 703. Fixed rod; 704. Rotating rod two; 705. Gear two; 706. Brush rod; 800. Support assembly; 801. Fixing plate; 802. Telescopic rod; 803. Spring 3; 804. Moving plate 2; 805. Inclined block; 806. Moving rod 3; 807. Compression rod; 808. Torsion spring rod; 809. Support plate. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0021] Example 1, please refer to Figures 1-5 A new online inspection device for the printing quality of paper boxes includes an inspection chamber 100 and a conveying mechanism 300. The side of the inspection chamber 100 is equipped with a power rod 200 driven by a linear motor, and the side of the power rod 200 is equipped with a clamping plate 400 driven by a linear motor. The inside of the inspection chamber 100 is equipped with an inspection probe 500. The new material paper box printing quality online detection device is used to detect the green moisture-proof and antibacterial packaging box of medical equipment. The packaging box has a multi-layer composite structure, which includes, from the outside to the inside: kraft paper outer layer, nano silver coating PE / PET moisture-proof and antibacterial layer, silver titanium dioxide composite functional layer, and silver nanowire non-woven fabric inner lining layer. The layers are bonded together by hot pressing or environmentally friendly adhesive. The outer kraft paper layer, serving as the main structural layer of the packaging box, is made of high-strength, moisture-proof kraft paper and forms the side walls, bottom plate, and lid of the box. This layer has uniform thickness, high toughness, and high burst resistance, possessing excellent resistance to compression and impact. It also has natural moisture-proof and biodegradable environmental properties, providing structural support and basic protection for the entire packaging box. The nano-silver coated PE / PET moisture-proof and antibacterial layer is tightly bonded to the inner layer of kraft paper, forming a continuous film structure. This layer uses medical-grade PE or PET film as a base, with a uniform nano-silver coating on the surface. On the one hand, it improves the overall moisture barrier properties of the packaging box, achieving a moisture-proof effect; on the other hand, it achieves broad-spectrum antibacterial activity through the release of nano-silver ions, inhibiting bacterial adhesion and reproduction. The silver-titanium dioxide composite functional layer is disposed on the inner side of the nano-silver coated PE / PET film as an intermediate reinforcement layer. This layer uses titanium dioxide as a carrier to load silver ions, which can improve the dispersibility and stability of silver ions, prolong the antibacterial effect, and produce photocatalytic antibacterial effect under light conditions, further enhancing antibacterial performance and aging resistance. The silver nanowire nonwoven fabric inner lining layer, serving as the innermost contact layer of the packaging box, is made of silver nanowire modified nonwoven fabric. This layer is soft in texture and has uniform pores, providing excellent cushioning performance to prevent medical equipment from being bumped or scratched during transportation. At the same time, the silver nanowires further enhance the internal antibacterial effect while ensuring a certain degree of breathability, meeting the requirements for the penetration of medical sterilization gases. The box has a foldable, one-piece structure. The lid and the box body can be closed by means of a tongue or heat sealing to form a sealed, moisture-proof, and antibacterial sterile packaging space, which is suitable for long-term storage and transportation of medical equipment. The green, moisture-proof, and antibacterial new packaging box of the medical device to be tested is transported to the testing chamber 100 by the conveying mechanism 300. The power rod 200 driven by linear motor 1 is activated, causing the power rod 200 to move closer to the packaging box. The moving power rod 200 drives the clamping plate 400 to clamp the packaging box. Subsequently, the clamping plate 400 driven by linear motor 2 is activated, which can move the clamping plate 400 and the packaging box upwards by a certain distance.

[0022] Inside the testing chamber 100, a shaped rod 602 is connected via a spring 601. A movable plate 603 is fixedly connected to the bottom of the shaped rod 602. The movable plate 603 is located at the top of the clamping plate 400 and is in contact with it. When the clamping plate 400 moves upward, it presses against the movable plate 603 from its bottom. The pressed movable plate 603 moves upward, causing it to move the shaped rod 602, which is fixedly connected to it. The movable rod 602, in its moving state, compresses the spring 601 and moves upward.

[0023] A rotating rod 608 is rotatably connected to the bottom of the detection chamber 100. A transmission component for transmission is assembled between the shaped rod 602 and the rotating rod 608. The transmission component includes a fixed block 604 fixed inside the detection chamber 100. A toothed rod 606 is connected to the side of the fixed block 604 via a spring 605. A movable rod 607 is fixedly connected to the side of the toothed rod 606. The movable rod 607 is located at the top of the shaped rod 602 and is in contact with the shaped rod 602. When the shaped rod 602 moves, it can squeeze the movable rod 607. The squeezed movable rod 607 can move to the side, causing the movable rod 607 to drive the toothed rod 606 fixedly connected to it to move together. At this time, the toothed rod 606 compresses the spring 605 and moves closer to the fixed block 604.

[0024] A gear 609 is fixedly connected to the outer side of the rotating rod 608, and the gear 609 meshes with the rack 606. When the rack 606 moves, it drives the gear 609 to rotate, which in turn drives the rotating rod 608 fixedly connected to it to rotate.

[0025] An arc-shaped plate 610 is fitted to the bottom of the rotating rod 608. When the rotating rod 608 rotates, it drives the arc-shaped plate 610, which is fixedly connected to it, to rotate, exposing the detection probe 500, which was originally closed by the arc-shaped plate 610. When not in use, the detection probe 500 is closed, thereby preventing a large amount of dust from adhering to the surface of the detection probe 500 and improving the accuracy of the device's detection results.

[0026] In practical use, the above-mentioned equipment uses a conveying mechanism 300 to transport the green, moisture-proof, and antibacterial new packaging box of the medical device to be tested into the testing chamber 100. The power rod 200, driven by a linear motor, is then activated, causing it to move closer to the packaging box. The moving power rod 200 drives the clamping plate 400 to clamp the packaging box. Subsequently, the clamping plate 400, driven by a linear motor, is activated, moving both the clamping plate 400 and the packaging box upwards a certain distance. The upward-moving clamping plate 400 then presses against the bottom of the moving plate 603, causing it to move upwards. This causes the moving plate 603 to move along with the irregularly shaped rod 602, which is fixedly connected to it. The moving irregularly shaped rod 602 compresses the spring 601 and moves upwards, pressing against the moving rod 607 during its movement. The compressed moving rod 607 can move to the side, causing it to move together with the toothed rod 606 fixedly connected to it. At this time, the toothed rod 606 compresses the spring 605 and moves closer to the fixed block 604. The moving toothed rod 606 can drive the gear 609 meshing with it to rotate, causing the gear 609 to drive the rotating rod 608 fixedly connected to it to rotate. The rotating rod 608 can drive the arc plate 610 fixedly connected to it to rotate, exposing the detection probe 500 that was originally closed by the arc plate 610. After the detection probe 500 completes the corresponding detection operation, the clamping plate 400 first drives the clamped packaging box to move downward. The moving plate 603 is no longer restricted by the clamping plate 400 and can be reset under the action of the spring 601. Similarly, the arc plate 610 can be reset and re-close the detection probe 500.

[0027] Example 2, please refer to Figures 4-7 Based on Embodiment 1, a processing component 700 is assembled at the bottom of the detection chamber 100. The processing component 700 includes a second moving rod 701 fixed to the side of the first moving plate 603. When the first moving plate 603 moves upward, it can drive the second moving rod 701 fixedly connected to it to move upward.

[0028] The top of the movable rod 701 is fixedly connected to the toothed rod 702. When the movable rod 701 moves upward, it can drive the toothed rod 702 fixedly connected to it to move upward together.

[0029] A fixed rod 703 is fixedly connected inside the detection chamber 100. A rotating rod 704 is rotatably connected to the side of the fixed rod 703. An opening is provided on the arc-shaped plate 610, the cross-sectional shape of which matches the cross-sectional shape of the rotating rod 704. A gear 705 is fixedly connected to the outside of the rotating rod 704, and the gear 705 meshes with a rack 702. When the rack 702 moves upward, it drives the gear 705 to rotate, and the rotating gear 705 drives the rotating rod 704 fixedly connected to it to rotate.

[0030] A brush rod 706 is fixedly connected to the bottom of the rotating rod 704. When the rotating rod 704 rotates, it can drive the brush rod 706 fixedly connected to it to rotate together. When the arc plate 610 is opened, the dust and other impurities on the surface of the detection probe 500 are treated once, which further improves the accuracy of subsequent detection results.

[0031] In practical use, when the moving plate 603 moves upward, it drives the moving rod 701 fixedly connected to it to move upward. The moving rod 701, in the upward moving state, drives the gear 702 fixedly connected to it to move upward together. During the upward movement, the gear 702 drives the gear 705 meshing with it to rotate. The rotating gear 705, in the rotating state, drives the rotating rod 704 fixedly connected to it to rotate, which in turn drives the brush rod 706 fixedly connected to it to rotate together. When the arc plate 610 is opened, the dust and other impurities on the surface of the detection probe 500 are treated.

[0032] Example 3, please refer to Figures 6-9 Based on Embodiments 1 and 2, the testing chamber 100 is internally equipped with a support assembly 800, which includes a fixing plate 801 fixed to the side of the clamping plate 400. When the power rod 200 drives the clamping plate 400 to move laterally to clamp the packaging box, both the power rod 200 and the clamping plate 400 are in a moving state, and the clamping plate 400 drives the fixing plate 801 fixedly connected to it to move.

[0033] A telescopic rod 802 is slidably connected to the side of the detection chamber 100. A fixed plate 801 is fixed to the telescopic end of the telescopic rod 802. A movable plate 804 is connected to the side of the telescopic end of the telescopic rod 802 via a spring 803. A wedge 805 is mounted on the side of the movable plate 804. A movable rod 806 is mounted on the side of the power rod 200. When the power rod 200 moves, it can drive the movable rod 806 mounted on its side to move.

[0034] The third movable rod 806 is located on the side of the inclined block 805, and the third movable rod 806 is in contact with the inclined block 805. The side of the second movable plate 804 is fixedly connected to the pressing rod 807. When the fixed plate 801 moves, the telescopic end of the telescopic rod 802 can be stretched. The third spring 803, the second movable plate 804, the inclined block 805 and the pressing rod 807 assembled on the telescopic end of the telescopic rod 802 move to the side synchronously with the clamping plate 400.

[0035] A support plate 809 is rotatably connected to the bottom of the clamping plate 400 via a torsion spring rod 808. The support plate 809 is located to the side of the extrusion rod 807, and the support plate 809 is in contact with the extrusion rod 807. When the clamping plate 400 moves the packaging box upward, the inclined block 805 at the telescopic end of the telescopic rod 802 is restricted by the moving rod 806 during its upward movement. The inclined block 805 moves to the side due to the extrusion, and the inclined block 805 in the moving state can drive the moving plate 804 fixedly connected to it to move. At this time, the moving plate 804 stretches the spring 803 to move to the side, so that the moving plate 804 drives the extrusion rod 807 fixedly connected to it to move towards the support plate 809. The support plate 809 is rotatably connected to the bottom of the clamping plate 400 via the torsion spring rod 808. In this way, the support plate 809 can be rotated to the bottom position of the packaging box to provide support and prevent the packaging box from accidentally falling during testing, making the device more stable.

[0036] In practical use, when the power rod 200 moves the clamping plate 400 to the side to clamp the packaging box, both the power rod 200 and the clamping plate 400 are in a moving state. The clamping plate 400 moves the fixed plate 801 fixedly connected to it. During the movement, the fixed plate 801 stretches the telescopic end of the telescopic rod 802. The spring 803, the moving plate 804, the inclined block 805, and the pressing rod 807, all mounted on the telescopic end of the telescopic rod 802, move to the side synchronously with the clamping plate 400. The power rod 200 moves the moving rod 806 mounted on its side. Subsequently, when the clamping plate 400 moves the packaging box upward, the moving rod 806 mounted on the side of the power rod 200 is stationary, and the clamping plate 400 moves the telescopic rod 802. The upward movement causes the inclined block 805 at the telescopic end of the telescopic rod 802 to be restricted by the moving rod 806 during its upward movement. The inclined block 805 moves to the side due to the compression. The inclined block 805 in the moving state can drive the moving plate 804 fixedly connected to it to move. At this time, the tension spring 803 of the moving plate 804 moves to the side, causing the pressing rod 807 fixedly connected to it to move towards the support plate 809. The support plate 809 is rotatably connected to the bottom of the clamping plate 400 through the torsion spring rod 808. During the movement, the pressing rod 807 compresses the support plate 809, causing the support plate 809 to rotate around the torsion spring rod 808 as the axis. The support plate 809 then rotates to the bottom position of the packaging box.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel online inspection device for the printing quality of paper boxes, comprising an inspection chamber and a conveying mechanism, wherein a power rod driven by a linear motor is mounted on the side of the inspection chamber, a clamping plate driven by a linear motor is mounted on the side of the power rod, and an inspection probe is mounted inside the inspection chamber, characterized in that, The inside of the detection chamber is connected to an irregularly shaped rod by a spring. A movable plate is fixedly connected to the bottom of the irregularly shaped rod. A rotating rod is rotatably connected to the bottom of the detection chamber. A transmission component for transmission is assembled between the irregularly shaped rod and the rotating rod. An arc-shaped plate is assembled to the bottom of the rotating rod. The bottom of the testing chamber is equipped with a processing component, and the interior of the testing chamber is equipped with a support component.

2. The online inspection device for printing quality of new material paper boxes according to claim 1, characterized in that, The transmission component includes a fixed block fixed inside the detection chamber. A gear is connected to the side of the fixed block via a spring. A movable rod is fixedly connected to the side of the gear. A gear is fixedly connected to the outer side of the movable rod. The gear meshes with the gear.

3. The online inspection device for printing quality of new material paper boxes according to claim 2, characterized in that, The movable plate is located at the top of the clamping plate, and the movable plate is in contact with the clamping plate.

4. The online inspection device for printing quality of new material paper boxes according to claim 3, characterized in that, The first movable rod is located at the top of the irregular rod, and the first movable rod is in contact with the irregular rod.

5. The online inspection device for printing quality of new material paper boxes according to claim 4, characterized in that, The processing assembly includes a second movable rod fixed to one side of a movable plate, a second gear fixedly connected to the top of the second movable rod, a fixed rod fixedly connected inside the detection chamber, a second rotating rod rotatably connected to the side of the fixed rod, a second gear fixedly connected to the outside of the second rotating rod, the second gear meshing with the second gear, and a brush fixedly connected to the bottom of the second rotating rod.

6. The online inspection device for printing quality of new material paper boxes according to claim 5, characterized in that, The arc-shaped plate has a through opening, the cross-sectional shape of which is adapted to the cross-sectional shape of the rotating rod.

7. The online inspection device for printing quality of new material paper boxes according to claim 6, characterized in that, The support assembly includes a fixed plate fixed to the side of the clamping plate, a through telescopic rod slidably connected to the side of the detection chamber, the fixed plate being fixed to the telescopic end of the telescopic rod, a movable plate being connected to the side of the telescopic end of the telescopic rod via a spring three, a wedge being mounted on the side of the movable plate two, a movable rod three being mounted on the side of the power rod, a pressing rod being fixedly connected to the side of the movable plate two, and a support plate being rotatably connected to the bottom of the clamping plate via a torsion spring rod.

8. The online inspection device for printing quality of new material paper boxes according to claim 7, characterized in that, The third movable rod is located on the side of the inclined block, and the third movable rod is in contact with the inclined block.

9. The online inspection device for printing quality of new material paper boxes according to claim 8, characterized in that, The support plate is located on the side of the extrusion rod, and the support plate is in contact with the extrusion rod.

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