A waste gas treatment device for PET film printing

Abstract

The utility model discloses a kind of waste gas treatment devices for PET film printing, including processing bin, replacement assembly and storage assembly. Processing bin is equipped with lifting strip and replacement window inside, replacement assembly contains docking shell, screw rod driving mechanism and rotary rod linkage device, and storage assembly is equipped with magnetic attraction type closed door. Docking shell is connected with processing bin by quick plug-in structure, and inside is equipped with the material frame of wave ring adjusting mechanism, docking head is driven rotary rod by screw rod, and rotary block is plugged in, to realize the automatic replacement of material frame. The device is seamlessly switched by mechanical linkage design to realize new and old material frame, and the sealing pressure of rubber strip is adjusted by wave ring and extruding wheel cooperation, to ensure that waste gas treatment is not interrupted during replacement process, significantly improve operation efficiency, magnetic sealing structure guarantees equipment airtightness, and unique pressure adjustment design ensures fixed stability and reduces moving resistance, effectively solve the problem that traditional waste gas treatment device needs to stop during replacement of consumables.

Description

Technical Field

[0001] This utility model relates to the field of shearing machine technology, specifically to a waste gas treatment device for PET film printing. Background Technology

[0002] The waste gas generated during printing is generally treated by activated carbon adsorption. After the waste gas treatment device has been running for a period of time, the activated carbon inside the waste gas treatment device needs to be replaced. Generally, when replacing the internal activated carbon, the waste gas supply needs to be stopped to complete the replacement, which reduces the efficiency of the device.

[0003] Publication No. CN222092914U discloses a printing waste gas treatment device, including a housing. An air inlet is fixedly installed on one side of the lower end of the housing, and an air outlet is fixedly installed on the upper end of the housing. An absorption mechanism is provided on the lower end of the inner wall of the housing, and an activated carbon filter plate is provided on the upper part of the inner wall. A linkage component is provided on the activated carbon filter plate. The linkage component allows the printing waste gas to be adsorbed and filtered through the activated carbon filter block as the activated carbon filter plate slides during replacement, before being discharged, thus improving the working efficiency of the device. However, this patent still has the following problems in actual use:

[0004] During the activated carbon replacement process, the moving plate of the above device will divide the chamber to prevent the exhaust gas from continuing to pass through, thereby preventing exhaust gas leakage during the replacement process. However, when the high-speed exhaust gas is blocked, it will cause the air pressure above the chamber to increase, which will directly reduce the efficiency of exhaust gas being blown in. The replacement time is slightly longer and the exhaust gas rushes in faster, causing the air pressure to rise too quickly, and even the gas backflow may occur. The device has low practicality and requires a lot of manual operation during the replacement process, making it inconvenient to replace quickly.

[0005] A waste gas treatment device for PET film printing is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a waste gas treatment device for PET film printing, in order to solve the problems mentioned in the background art. In the above-mentioned device, during the replacement of activated carbon, the moving plate will separate the box to prevent waste gas from continuing to pass through, thereby preventing waste gas leakage during the replacement process. However, when the high-speed influx of waste gas is obstructed, it will cause the air pressure above the box to increase, which will directly reduce the efficiency of waste gas being blown in. The replacement time is slightly longer and the waste gas influx speed is relatively fast, resulting in the air pressure rising too quickly, and even the gas backflow. The practicality is low, and there are many manual operations during the replacement process, which is inconvenient for quick replacement.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waste gas treatment device for PET film printing, comprising a treatment chamber, wherein symmetrical support strips are fixedly connected inside the treatment chamber, and replacement windows are symmetrically opened on both sides of the treatment chamber;

[0008] A replacement component is provided on one side of the processing chamber, and a storage component is provided on the other side of the processing chamber. The replacement component includes a docking shell, a hinged door is rotatably installed on the front of the docking shell, vertical plates are symmetrically fixedly connected to the bottom of the docking shell, a screw is rotatably connected between the two vertical plates, a threaded sleeve is connected to the external thread of the screw, a motor is fixedly connected to one side of one of the vertical plates, and a bent connecting rod is fixedly connected to the bottom of the threaded sleeve.

[0009] The docking shell has a rotating rod slidably connected to one side. The rotating rod extends into the docking shell and is fixedly connected to a connector. Material frames can be placed inside the docking shell and on the support strip. Outer plates are symmetrically fixedly connected to both sides of the material frames. An adjustment window is opened in the middle of the outer plate. A rotating block is rotatably connected to the middle of the adjustment window. A movable rod is slidably embedded inside the adjustment window. One end of the movable rod inside the adjustment window is rotatably connected to a compression wheel and is surrounded by a spring. The other end of the movable rod extends out of the outer plate and is fixedly connected to a rubber strip.

[0010] The processing chamber has two pairs of left and right distributed docking frames fixedly connected to one side. The upper docking frame is threaded with a screw, which is inserted into the top of the docking shell.

[0011] Preferably, the rubber strip is fitted to the inner wall of the docking shell, the motor is coaxially connected to the screw via a coupling, the rotating rod is connected to the bending connecting rod via a bearing, the docking joint is inserted into the rotating block, the docking shell is inserted into the docking frame, and a connecting shaft is rotatably connected inside the material frame, with both ends of the connecting shaft being fixedly connected to different rotating blocks respectively.

[0012] Preferably, a corrugated ring is fixedly connected to the outer side of the rotating block, and the outer side of the corrugated ring is provided with spaced support grooves and clearance grooves. The outer side of the outer plate is provided with a groove, the rubber strip is fitted into the groove, and the extrusion wheel is in rolling contact with the corrugated ring.

[0013] Preferably, the bottom of the docking shell is provided with a hidden groove, the threaded sleeve is slidably connected to the hidden groove, and the docking frame is L-shaped.

[0014] Preferably, the rubber strip can be fitted to the side wall of the replacement window, the material frame is fitted to the top surface of the support strip and slides, and magnetic blocks are symmetrically fixedly connected to both sides of the flip door.

[0015] Preferably, the storage component includes a storage compartment fixed to the outside of the processing compartment, and a closed door is rotatably connected to the front of the storage compartment. A magnetic strip is embedded in the edge of the closed door and adsorbs and engages with the metal sealing surface at the opening of the storage compartment.

[0016] Preferably, the storage compartment is connected to the replacement window.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This waste gas treatment device for PET film printing achieves semi-automatic material frame replacement through screw drive and corrugated ring sealing mechanism, significantly improving replacement efficiency and operational safety while ensuring continuous sealing of the treatment chamber. The specific details are as follows:

[0018] 1. This component employs a precision transmission mechanism of screws and sleeves, coupled with a motor drive, achieving a high degree of automation and precise control in the material frame replacement process, effectively avoiding errors and safety risks that may arise from manual operation. Secondly, the unique design of the rotating rod and connector enables seamless docking and precise transmission between the old and new material frames, ensuring the processing chamber remains sealed throughout the replacement process and completely eliminating the risk of exhaust gas leakage. Furthermore, the coordinated design of the corrugated ring and extrusion wheel in the component allows the rubber strip to automatically adjust the sealing pressure according to operational needs, ensuring the stable fixation of the material frame while reducing frictional resistance during movement. The entire replacement process is fully semi-automated, requiring no downtime and significantly improving production efficiency. Simultaneously, the L-shaped docking frame and the quick-locking design of the screws give this component excellent versatility and convenience, allowing for rapid adaptation to different processing chambers.

[0019] 2. The magnetic stripe and metal sealing surface are combined for adsorption, enabling the closed door to open and close quickly and reliably, facilitating the handling of old material frames while ensuring the storage compartment is completely sealed to prevent exhaust gas leakage. Secondly, the connection between the storage compartment and the replacement window allows old material frames to be smoothly transferred from the processing compartment to the storage compartment without manual intervention. Attached Figure Description

[0020] Figure 1 This is a partial cross-sectional view of the front of the present invention.

[0021] Figure 2 A structural diagram for replacing components;

[0022] Figure 3 This is a side view sectional structural diagram of the outer panel;

[0023] Figure 4 This is a side view of the installation structure of the outer panel;

[0024] Figure 5 This is a schematic diagram of the installation structure of the docking frame and the screw.

[0025] Figure 6 for Figure 1 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Processing compartment; 101. Lifting bar; 102. Replacement window; 2. Replacement component; 201. Docking shell; 202. Flip door; 203. Screw; 204. Screw sleeve; 205. Motor; 206. Bending connecting rod; 207. Rotating rod; 208. Connecting joint; 209. Material frame; 210. Outer panel; 211. Adjustment window; 212. Rotating block; 213. Movable rod; 214. Spring; 215. Extrusion wheel; 216. Rubber strip; 217. Docking frame; 218. Screw; 3. Storage component; 301. Storage compartment; 302. Sealing door; 303. Magnetic strip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 The present invention provides a technical solution: a waste gas treatment device for PET film printing, including a treatment chamber 1, in which support bars 101 are symmetrically fixedly connected inside the treatment chamber 1, and replacement windows 102 are symmetrically opened on both sides of the treatment chamber 1; during operation, the treatment chamber 1 continuously maintains the waste gas circulation state to ensure uninterrupted production process.

[0029] A replacement component 2 is provided on one side of the processing chamber 1, and a storage component 3 is provided on the other side of the processing chamber 1. The replacement component 2 includes a docking shell 201. A flip door 202 is rotatably installed on the front of the docking shell 201. Vertical plates are symmetrically fixedly connected to the bottom of the docking shell 201. A screw 203 is rotatably connected between the two vertical plates. A threaded sleeve 204 is connected to the external thread of the screw 203. A motor 205 is fixedly connected to one side of one of the vertical plates. A bent connecting rod 206 is fixedly connected to the bottom of the threaded sleeve 204. The screw 203 is driven to rotate by the motor 205, which drives the threaded sleeve 204 and the bent connecting rod 206 to achieve precise horizontal movement.

[0030] A rotating rod 207 is slidably connected to one side of the docking shell 201. The rotating rod 207 extends into the docking shell 201 and is fixedly connected to a connector 208. Material frames 209 can be placed inside the docking shell 201 and on the support bar 101. Outer plates 210 are symmetrically fixedly connected to both sides of the material frames 209. An adjustment window 211 is opened in the middle of the outer plate 210. A rotating block 212 is rotatably connected to the middle of the adjustment window 211. A movable rod 213 is slidably embedded inside the adjustment window 211. One end of the movable rod 213 located inside the adjustment window 211 is rotatably connected to a compression wheel 215 and is surrounded by a spring 214. The other end of the movable rod 213 extends out of the outer plate 210 and is fixedly connected to a rubber strip 216. The rotating rod 207 is inserted into the rotating block 212 through the connector 208, which drives the corrugated ring to rotate and realize the sealing pressure adjustment of the rubber strip 216.

[0031] Two pairs of docking frames 217 are fixedly connected to one side of the processing chamber 1. The upper docking frame 217 is threaded with a screw 218, which is inserted into the top of the docking shell 201. The docking shell 201 can be quickly installed and disassembled by rotating the screw 218, which facilitates equipment maintenance and component replacement.

[0032] The rubber strip 216 fits against the inner wall of the docking shell 201. The motor 205 is coaxially connected to the screw 203 via a coupling. The rotating rod 207 is connected to the bent connecting rod 206 via a bearing. The docking joint 208 is inserted into the rotating block 212. The docking shell 201 is inserted into the docking frame 217. The material frame 209 has a connecting shaft rotatably connected inside. The two ends of the connecting shaft are fixedly connected to different rotating blocks 212 respectively. This linkage mechanism ensures that the rotating blocks 212 on both sides rotate synchronously, realizing the smooth movement and precise positioning of the material frame 209.

[0033] A corrugated ring is fixedly connected to the outer side of the rotating block 212. The outer side of the corrugated ring has spaced support grooves and clearance grooves. The outer side of the outer plate 210 has a groove. The rubber strip 216 is fitted into the groove and moves within the groove. The extrusion wheel 215 rolls in contact with the corrugated ring. When the extrusion wheel 215 enters the clearance groove, the spring 214 pushes the movable rod 213 to retract the rubber strip 216, reducing friction and facilitating the movement of the material frame 209. Both the support groove and the clearance groove are recessed grooves. Therefore, after the extrusion wheel 215 enters, the corrugated ring cannot rotate without external force.

[0034] The bottom of the docking shell 201 has a hidden groove, the threaded sleeve 204 is slidably connected to the hidden groove, and the docking frame 217 is L-shaped; the hidden groove design ensures that the threaded sleeve 204 moves smoothly, and the L-shaped docking frame 217 provides a stable support structure.

[0035] The rubber strip 216 can fit against the side wall of the replacement window 102, the material frame 209 slides against the top surface of the support strip 101, and magnetic blocks are symmetrically fixedly connected to both sides of the flip door 202; the magnetic blocks ensure the sealing of the flip door 202 when it is closed, and the rubber strip 216 automatically restores the sealing state after the material frame 209 is positioned.

[0036] The storage assembly 3 includes a storage compartment 301 fixed to the outside of the processing compartment 1. A sealing door 302 is rotatably connected to the front of the storage compartment 301. A magnetic strip 303 is embedded along the edge of the sealing door 302, which magnetically engages with the metal sealing surface at the opening of the storage compartment 301. This magnetic sealing design facilitates the handling of the old material frame 209 by operators while ensuring the airtightness of the storage compartment 301. The storage compartment 301 is connected to the replacement window 102; this design allows the old material frame 209 to be automatically moved from the processing compartment 1 into the storage compartment 301.

[0037] Working principle: Before using this PET film printing exhaust gas treatment device, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 6 As shown, a working method of a waste gas treatment device for PET film printing is characterized by the following steps: inserting the docking shell 201 into the middle of the docking frame 217, and then rotating the screw 218 to make it insert into the top of the docking shell 201, thereby achieving quick locking of the docking shell 201.

[0038] Start the motor 205, drive the screw 203 to rotate, so that the screw sleeve 204 drives the bending connecting rod 206 and the rotating rod 207 to move horizontally, thereby causing the connector 208 to move towards the outer plate 210 located inside the replacement window 102 and to be inserted into the rotating block 212.

[0039] Rotate the rotating rod 207 to make the connector 208 drive one rotating block 212 to rotate, and make the other rotating block 212 rotate synchronously through the connecting shaft;

[0040] The rotation of the swivel block 212 drives the corrugated ring to rotate, causing the extrusion wheel 215 to roll from the support groove into the clearance groove. At this time, the spring 214 pushes the movable rod 213 to slide, causing the rubber strip 216 to slide into the groove. The deformation characteristics of the rubber strip 216 keep it in place, ensuring the seal. However, the inner wall of the window 102 is replaced, but the friction is reduced, so that the material frame 209 located on the support bar 101 is in a movable state.

[0041] Restart the motor 205 to reset the rotating rod 207, open the flip door 202, place the new material frame 209 into the docking shell 201, and then the flip door 202 stably covers the placement opening of the docking shell 201 with a magnetic block to form a seal.

[0042] Move the connector 208 again, and the connector 208 will engage with the rotating block 212 of the new material frame 209 and push the new material frame 209 to move. At the same time, the new material frame 209 can squeeze the old material frame 209 to move from the support bar 101 and from the replacement window 102 into the storage compartment 301.

[0043] After the new material frame 209 replaces the old material frame 209, rotating the rotating rod 207 causes the rotating block 212 to rotate, allowing the support groove of the corrugated ring to move and fit against the extrusion wheel 215, causing the movable rod 213 to be pushed slightly outward, thereby making the rubber strip 216 fit tightly against the inner wall of the replacement window 102, stabilizing and fixing the material frame 209 while forming a seal on the replacement window 102.

[0044] During the replacement of material frame 209, the processing chamber 1 operates normally throughout the process without any temporary closure or need for shutdown, thus increasing maintenance efficiency.

[0045] After opening the closed door 302, the old material box 209 inside the storage compartment 301 can be taken out to replace and reuse the materials inside;

[0046] After replacing the material frame 209, the docking shell 201 can be disassembled by rotating the docking frame 217, so that the docking shell 201 can be used in other processing chambers 1, thus increasing the scope of application.

[0047] Because the rubber strip 216 presses tightly against the inner wall of the replacement window 102, the replacement window 102 is in a sealed state and will not leak air.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste gas treatment device for PET film printing, comprising a treatment chamber (1), wherein a support bar (101) is symmetrically fixedly connected inside the treatment chamber (1), and replacement windows (102) are symmetrically opened on both sides of the treatment chamber (1); Its features are, Also includes: A replacement component (2) is provided on one side of the processing chamber (1), and a storage component (3) is provided on the other side of the processing chamber (1). The replacement component (2) includes a docking shell (201). A flip door (202) is rotatably installed on the front of the docking shell (201). Vertical plates are symmetrically fixedly connected to the bottom of the docking shell (201). A screw (203) is rotatably connected between the two vertical plates. A threaded sleeve (204) is connected to the external thread of the screw (203). A motor (205) is fixedly connected to one side of one of the vertical plates. A bent connecting rod (206) is fixedly connected to the bottom of the threaded sleeve (204). Among them, a rotating rod (207) is slidably connected to one side of the docking shell (201). The rotating rod (207) extends into the docking shell (201) and is fixedly connected to a connecting head (208). Material frames (209) can be placed inside the docking shell (201) and on the lifting strip (101). Outer plates (210) are symmetrically fixedly connected to both sides of the material frames (209). An adjustment window (211) is opened in the middle of the outer plate (210). A rotating block (212) is rotatably connected to the middle of the adjustment window (211). A movable rod (213) is slidably embedded inside the adjustment window (211). One end of the movable rod (213) located inside the adjustment window (211) is rotatably connected to a pressing wheel (215) and is surrounded by a spring (214). The other end of the movable rod (213) extends out of the outer plate (210) and is fixedly connected to a rubber strip (216). Among them, two pairs of left and right distributed docking frames (217) are fixedly connected to one side of the processing chamber (1). The upper docking frame (217) is threaded with a screw (218), and the screw (218) is inserted into the top of the docking shell (201).

2. The waste gas treatment device for PET film printing according to claim 1, characterized in that: The rubber strip (216) is attached to the inner wall of the docking shell (201), the motor (205) is coaxially connected to the screw (203) through a coupling, the rotating rod (207) is connected to the bending connecting rod (206) through a bearing, the docking joint (208) is inserted into the rotating block (212), the docking shell (201) is inserted into the docking frame (217), and the material frame (209) is rotatably connected to a connecting shaft inside, with the two ends of the connecting shaft respectively fixedly connected to different rotating blocks (212).

3. The waste gas treatment device for PET film printing according to claim 1, characterized in that: A corrugated ring is fixedly connected to the outer side of the rotating block (212). The outer side of the corrugated ring is provided with spaced support grooves and clearance grooves. The outer side of the outer plate (210) is provided with a groove. The rubber strip (216) is fitted into the groove. The extrusion wheel (215) is in rolling contact with the corrugated ring.

4. The waste gas treatment device for PET film printing according to claim 1, characterized in that: The bottom of the docking shell (201) is provided with a hidden groove, the threaded sleeve (204) is slidably connected to the hidden groove, and the docking frame (217) is L-shaped.

5. The waste gas treatment device for PET film printing according to claim 1, characterized in that: The rubber strip (216) can fit against the side wall of the replacement window (102), the material frame (209) slides against the top surface of the support strip (101), and magnetic blocks are symmetrically fixedly connected to both sides of the flip door (202).

6. The waste gas treatment device for PET film printing according to claim 1, characterized in that: The storage component (3) includes a storage compartment (301) fixed to the outside of the processing compartment (1). A closed door (302) is rotatably connected to the front of the storage compartment (301). A magnetic strip (303) is embedded on the edge of the closed door (302) and adsorbs and cooperates with the metal sealing surface at the opening of the storage compartment (301).

7. The waste gas treatment device for PET film printing according to claim 6, characterized in that: The storage compartment (301) is connected to the replacement window (102).

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