Food packaging bag code spraying device

By introducing an adjustment structure into the food packaging bag coding device, the problems of cumbersome height adjustment and poor accuracy of traditional devices have been solved. The optimal printing distance between the inkjet nozzle and different packaging bags has been achieved, improving the coding effect and the equipment's versatility.

CN224075286UActive Publication Date: 2026-04-03SHENZHEN HAIXUANWEI PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-31
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional inkjet printers are cumbersome and inaccurate when adjusting the height of the printhead, making it difficult to adapt to packaging bags of different thicknesses and sizes. This can lead to blurry prints or printhead scratches, affecting the coding effect on food packaging bags.

Method used

The adjustable structure, consisting of a combination of a fixed base, slide rail, sliding sleeve, and screw handwheel, enables rapid adjustment of the inkjet printing head height, ensuring optimal printing spacing with packaging bags of different thicknesses and sizes.

Benefits of technology

It enables rapid and precise adjustment of the inkjet head height, avoiding blurry printing or printhead scratching, and improving the equipment's versatility and coding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging bag code spraying devices, in particular to a food packaging bag code spraying device which comprises a rack, a fixed seat fixedly connected to the rack, two sliding rails fixedly connected to the fixed seat, sliding sleeves slidably connected to the sliding rails, and a mounting plate with an L-shaped section fixedly connected to the two sliding sleeves. A code spraying head is mounted on the mounting plate, a fixing block is fixedly connected to the fixing seat, a second screw is rotationally connected between the fixing block and the fixing seat, a threaded seat is fixedly connected to the mounting plate, the second screw is in threaded connection with the threaded seat, a second hand wheel is fixedly connected to the end of the second screw, and a conveying structure and a paging structure are arranged on the rack. The height of the ink-jet head is rapidly adjusted through the adjusting structure, it is ensured that the ink-jet head and packaging bags of different thicknesses and specifications keep the optimal ink-jet printing distance, ink-jet printing fuzziness or nozzle scraping is avoided, and the universality of equipment is improved.
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Description

Technical Field

[0001] This utility model relates to a coding device, specifically a coding device for food packaging bags, and belongs to the technical field of coding devices for packaging bags. Background Technology

[0002] During food production and processing, food packaging bags need to be printed with key information such as production date, shelf life, and batch number to meet food safety traceability and market supervision requirements.

[0003] However, the inkjet head of traditional inkjet printers is fixed to the slot of the mounting plate by multiple bolts. When the height of the inkjet head needs to be adjusted, the bolts need to be loosened by rotating the bolts, the height of the inkjet head needs to be adjusted, and then the bolts need to be tightened again. The height adjustment is cumbersome and the accuracy of the adjustment is poor. It is difficult to quickly adapt to packaging bags of different thicknesses (such as ordinary plastic bags and vacuum aluminum foil bags) and sizes (such as small bags of snacks and large bags of rice and flour), resulting in blurry printing or the print head scratching the packaging bag, which affects the inkjet printing effect of food packaging bags. Utility Model Content

[0004] The purpose of this invention is to provide a food packaging bag coding device to solve the above problems. By adjusting the structure, the height of the printing head can be quickly adjusted to ensure that the printing head maintains the optimal printing distance with packaging bags of different thicknesses and specifications, avoids blurry printing or printhead scratching, and improves the versatility of the equipment.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a food packaging bag coding device, comprising a frame, an adjustment structure on the frame, the adjustment structure including a fixed base, two slide rails fixedly connected to the fixed base, sliding sleeves slidably connected to the slide rails, L-shaped mounting plates fixedly connected to the two sliding sleeves, a coding pad mounted on the mounting plate, a fixing block fixedly connected to the fixed base, a second screw rotatably connected between the fixing block and the fixed base, a threaded seat fixedly connected to the mounting plate, the second screw threadedly connected to the threaded seat, a second handwheel fixedly connected to the end of the second screw, and a conveying structure and a paging structure on the frame.

[0006] Preferably, the conveying structure includes a first conveying roller, two first conveying rollers rotatably connected to the frame, and a first conveyor belt for conveying food packaging bags wound around the outside of the two first conveying rollers. Two second conveying rollers are rotatably connected to the frame, and a second conveyor belt for piecing the food packaging bags is wound around the outside of the two second conveying rollers. A top roller is rotatably connected to the frame, and the top roller abuts against the second conveyor belt. Two third conveying rollers are rotatably connected to the frame, and a third conveyor belt for feeding food packaging bags is wound around the outside of the two third conveying rollers. A stacking and collecting frame is fixedly connected to the end of the frame.

[0007] Preferably, a first driving component is fixedly connected to the frame, and the output end of the first driving component is fixedly connected to the roller shaft of the third conveying roller.

[0008] Preferably, a second driving component is fixedly connected to the frame, and a pulley is fixedly connected to the output end of the second driving component, the roller shaft of the first conveying roller, and the roller shaft of the second conveying roller. The three pulleys are driven by a belt.

[0009] Preferably, the paging structure includes a vertical plate, which is fixedly connected to the frame. A rotating shaft is fixedly connected to the vertical plate, and a paging pressure plate is rotatably connected to the rotating shaft. A fixed shaft is fixedly connected to the frame, and an adjusting block is rotatably connected to the fixed shaft. A bolt is threaded onto the adjusting block, and a spring tensioner is installed between the bottom end of the bolt and the paging pressure plate.

[0010] Preferably, the frame is provided with a guide structure, the guide structure includes a fixed plate, two fixed plates are fixedly connected to the frame, a first screw is rotatably connected to the two fixed plates, two guide plates are threadedly connected to the first screw, the threads at both ends of the first screw are in opposite directions, an elastic pressure rod is fixedly connected to the guide plate, and a first handwheel is fixedly connected to the end of the first screw.

[0011] Preferably, a side plate is fixedly connected to the frame, a guide rod is fixedly connected to the side plate, the guide rod is provided with two guide grooves, a guide shaft is fixedly connected to the elastic pressure rod, and the guide shaft is slidably connected to the guide groove.

[0012] Preferably, a mounting shaft is fixedly connected to the side plate, and a pressure roller is rotatably connected to the mounting shaft.

[0013] The beneficial effects of this utility model are as follows: A fixed base is fixedly connected to the frame, two slide rails are fixedly connected to the fixed base, and sliding sleeves are slidably connected to the slide rails. An L-shaped mounting plate is fixedly connected to the two sliding sleeves, and a printhead is mounted on the mounting plate. A fixed block is fixedly connected to the fixed base, and a second screw is rotatably connected between the fixed block and the fixed base. A threaded seat is fixedly connected to the mounting plate, and the second screw is threadedly connected to the threaded seat. A second handwheel is fixedly connected to the end of the second screw. The frame is equipped with a conveying structure and a paging structure. The height of the printhead can be quickly adjusted by adjusting the structure, ensuring that the printhead maintains the optimal printing distance with packaging bags of different thicknesses and specifications, avoiding blurry printing or printhead scratching, and improving the versatility of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0016] Figure 3 This is a schematic diagram of the connection structure between the frame and the conveying structure of this utility model;

[0017] Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of section B.

[0018] Figure 5 This is a schematic diagram of the connection structure between the frame and the stacking and collecting frame of this utility model;

[0019] Figure 6 for Figure 5 The diagram shown is an enlarged view of the C-section structure.

[0020] Figure 7 This is a schematic diagram of the connection structure between the second driving component and the pulley of this utility model.

[0021] In the diagram: 1. Frame; 2. Conveying structure; 201. First conveyor roller; 202. First conveyor belt; 203. Second conveyor roller; 204. Second conveyor belt; 205. Top roller; 206. Third conveyor roller; 207. Third conveyor belt; 208. First drive component; 209. Second drive component; 210. Pulley; 3. Pager structure; 301. Vertical plate; 302. Rotating shaft; 303. Pager pressure plate; 304. Fixed shaft; 305. Adjusting block; 306. Bolt; 307. Spring tensioner; 4. Guide. Structure; 401, Fixing plate; 402, First screw; 403, Guide plate; 404, First handwheel; 405, Elastic pressure rod; 406, Side plate; 407, Guide rod; 408, Guide groove; 409, Guide shaft; 410, Mounting shaft; 411, Pressure roller; 5, Adjustment structure; 501, Fixing seat; 502, Slide rail; 503, Sliding sleeve; 504, Mounting plate; 505, Fixing block; 506, Second screw; 507, Threaded seat; 508, Second handwheel; 6, Spraying dock; 7, Stacking collection frame. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-7As shown, a food packaging bag coding device includes a frame 1, on which an adjustment structure 5 is provided. The adjustment structure 5 includes a fixed base 501, on which two slide rails 502 are fixedly connected. Sliding sleeves 503 are slidably connected to the slide rails 502. An L-shaped mounting plate 504 is fixedly connected to the two sliding sleeves 503. A coding head 6 is mounted on the mounting plate 504. A fixing block 505 is fixedly connected to the fixed base 501. A second screw 506 is rotatably connected between the fixing block 505 and the fixed base 501. The mounting plate 504 is fixed with... A threaded seat 507 is connected, and the second screw 506 is threadedly connected to the threaded seat 507. A second handwheel 508 is fixedly connected to the end of the second screw 506. The frame 1 is provided with a conveying structure 2 and a paging structure 3. The height of the inkjet nozzle 6 can be quickly adjusted by adjusting the structure 5. Rotating the second handwheel 508 drives the second screw 506 to rotate. Under the action of the second screw 506, the threaded seat 507 drives the mounting plate 504 to rise and fall along the slide rail 502, ensuring that the inkjet nozzle 6 maintains the optimal printing distance with packaging bags of different thicknesses and specifications, avoiding blurry printing or printhead scratching, and improving the versatility of the equipment.

[0024] As a technical optimization of this utility model, the conveying structure 2 includes a first conveying roller 201. Two first conveying rollers 201 are rotatably connected to the frame 1. A first conveyor belt 202 for conveying food packaging bags is wound around the outside of the two first conveying rollers 201. Two second conveying rollers 203 are rotatably connected to the frame 1. A second conveyor belt 204 for paging the food packaging bags is wound around the outside of the two second conveying rollers 203. A top roller 205 is rotatably connected to the frame 1, and the top roller 205 abuts against the second conveyor belt 204. Two third conveying rollers 206 are rotatably connected to the frame 1. A first conveyor belt 202 for paging the food packaging bags is wound around the outside of the two third conveying rollers 206. The third conveyor belt 207 for feeding packaging bags is fixedly connected to the end of the frame 1 with a stacking and collecting frame 7. A first drive unit 208 is fixedly connected to the frame 1, and the output end of the first drive unit 208 is fixedly connected to the roller shaft of the third conveyor roller 206. A second drive unit 209 is fixedly connected to the frame 1. A pulley 210 is fixedly connected to the output end of the second drive unit 209, the roller shaft of the first conveyor roller 201, and the roller shaft of the second conveyor roller 203. The three pulleys 210 are driven by belts. The conveying structure 2 adopts multiple sets of conveyor belts linked together and driven synchronously by the drive unit through the pulleys 210 to ensure smooth and continuous conveying of packaging bags, reduce manual intervention, and improve production efficiency.

[0025] As a technical optimization of this utility model, the paging structure 3 includes a vertical plate 301, which is fixedly connected to the frame 1. A rotating shaft 302 is fixedly connected to the vertical plate 301, and a paging pressure plate 303 is rotatably connected to the rotating shaft 302. A fixed shaft 304 is fixedly connected to the frame 1, and an adjusting block 305 is rotatably connected to the fixed shaft 304. A bolt 306 is threaded onto the adjusting block 305, and a spring tensioner 307 is installed between the bottom end of the bolt 306 and the paging pressure plate 303. The paging structure 3 achieves automatic separation of packaging bags through the cooperation of the paging pressure plate 303 and the second conveyor belt 204. The spring tensioner 307 can adjust the pressure through the bolt 306 to adapt to the paging requirements of packaging bags of different materials.

[0026] As a technical optimization of this utility model, the frame 1 is provided with a guide structure 4, the guide structure 4 including a fixing plate 401, two fixing plates 401 are fixedly connected to the frame 1, and a first screw 402 is rotatably connected to the two fixing plates 401. Two guide plates 403 are threadedly connected to the first screw 402, the thread directions at both ends of the first screw 402 are opposite, an elastic pressure rod 405 is fixedly connected to the guide plate 403, and a first handwheel 404 is fixedly connected to the end of the first screw 402; a side plate 406 is fixedly connected to the frame 1, and a guide rod is fixedly connected to the side plate 406. The guide rod 407 has two guide grooves 408. The elastic pressure rod 405 is fixedly connected to a guide shaft 409, which is slidably connected to the guide grooves 408. The side plate 406 is fixedly connected to a mounting shaft 410, and a pressure roller 411 is rotatably connected to the mounting shaft 410. The guide structure 4 drives the first screw 402 to rotate by rotating the first handwheel 404, so that the two guide plates 403 move synchronously in opposite directions. This, together with the elastic pressure rod 405 and the pressure roller 411, centers and compresses the packaging bag, preventing skewing during transportation, ensuring the consistency of the coding position, and improving the coding quality.

[0027] In use, the food packaging bags to be printed are first stacked on the third conveyor belt 207. The first drive unit 208 (preferably a motor) and the second drive unit 209 (preferably a motor) are then activated. The first drive unit 208 drives the third conveyor roller 206 to rotate, causing the third conveyor belt 207 to transport the packaging bags to the paging structure 3. The second drive unit 209 synchronously drives the first conveyor roller 201 and the second conveyor roller 203 via the pulley 210, causing the first conveyor belt 202 and the second conveyor belt 204 to operate. Before paging, the tension of the spring tensioner 307 is adjusted by rotating the bolt 306 to create a suitable gap between the paging pressure plate 303 and the second conveyor belt 204. As the packaging bags pass by, they are separated one by one and transported to the paging structure 3. A conveyor belt 202 is used. Simultaneously, according to the packaging bag specifications, the first handwheel 404 is rotated to drive the first screw 402 to rotate, so that the two guide plates 403 move in opposite directions to a suitable distance. The elastic pressure bar 405 guides the packaging bag in the center under the restriction of the guide shaft 409 and the guide groove 408. The pressure roller 411 assists in pressing to prevent the conveyor from tilting. When it is necessary to adjust the height of the inkjet nozzle 6, the second handwheel 508 is rotated. The second handwheel 508 drives the second screw 506 to rotate. The second screw 506 drives the threaded seat 507 to move up and down, thereby driving the mounting plate 504 to rise and fall along the slide rail 502, so that the inkjet nozzle 6 maintains the optimal distance from the surface of the packaging bag. The packaged bag with inkjet printing completed is transported to the stacking and collection frame 7 for collection via the first conveyor belt 202.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] 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 food packaging bag ink-jet printing device comprising a frame (1), characterized in that: The rack (1) is provided with an adjusting structure (5), the adjusting structure (5) includes a fixed seat (501), the fixed seat (501) is fixedly connected with two slide rails (502), the slide rail (502) is slidably connected with a slide sleeve (503), two The slide sleeve (503) is fixedly connected with the mounting plate (504) with the section being L-shaped, the mounting plate (504) is installed with the code spraying head (6), the fixed seat (501) is fixedly connected with the fixed block (505), the fixed block (505) is rotatably connected with the second screw (506) between the fixed seat (501), the mounting plate (504) is fixedly connected with the threaded seat (507), the second screw (506) is threadedly connected with the threaded seat (507), the end of the second screw (506) is fixedly connected with the second hand wheel (508), the rack (1) is provided with conveying structure (2) and page structure (3).

2. The food packaging bag code spraying device according to claim 1, characterized in that: The conveying structure (2) includes a first conveying roller (201), the rack (1) is rotatably connected with two first conveying rollers (201), the outer portion of two The first conveying roller (201) is wound with a first conveying belt (202) for conveying food packaging bags, the rack (1) is rotatably connected with two second conveying rollers (203), the outer portion of two The second conveying roller (203) is wound with a second conveying belt (204) for paging food packaging bags, the rack (1) is rotatably connected with a top roller (205), the top roller (205) is in contact with the second conveying belt (204), the rack (1) is rotatably connected with two third conveying rollers (206), the outer portion of two The third conveying roller (206) is wound with a third conveying belt (207) for food packaging bag feeding, the end of the rack (1) is fixedly connected with the stacking collection frame (7).

3. The food packaging bag code spraying device according to claim 2, characterized in that: The rack (1) is fixedly connected with a first driving member (208), and the output end of the first driving member (208) is fixedly connected with the shaft of the third conveying roller (206).

4. The food packaging bag code spraying device according to claim 2, characterized in that: The rack (1) is fixedly connected with a second driving member (209), and the output end of the second driving member (209), the shaft of the first conveying roller (201) and the shaft of the second conveying roller (203) are each fixedly connected with a belt pulley (210), and the three belt pulleys (210) are driven by a belt.

5. The food packaging bag ink-jet printing device according to claim 1, characterized in that: The page structure (3) includes a vertical plate (301), the rack (1) is fixedly connected with the vertical plate (301), the vertical plate (301) is fixedly connected with a rotating shaft (302), the rotating shaft (302) is rotatably connected with a paging pressing plate (303), the rack (1) is fixedly connected with a fixed shaft (304), the fixed shaft (304) is rotatably connected with an adjusting block (305), the adjusting block (305) is threadedly connected with a bolt (306), and a spring tensioner (307) is installed between the bottom end of the bolt (306) and the paging pressing plate (303).

6. The food packaging bag ink-jet printing apparatus according to claim 1, wherein: The rack (1) is provided with a guide structure (4), the guide structure (4) includes a fixed plate (401), the rack (1) is fixedly connected with two fixed plates (401), the two fixed plates (401) are rotatably connected with a first screw rod (402), the first screw rod (402) is threadedly connected with two guide plates (403), the thread direction of the two ends of the first screw rod (402) is opposite, the guide plate (403) is fixedly connected with an elastic compression rod (405), and the end of the first screw rod (402) is fixedly connected with a first hand wheel (404).

7. The food packaging bag ink-jet printing apparatus according to claim 6, wherein: The rack (1) is fixedly connected with a side plate (406), the side plate (406) is fixedly connected with a guide rod (407), the guide rod (407) is provided with two guide grooves (408), the elastic compression rod (405) is fixedly connected with a guide shaft (409), and the guide shaft (409) is slidably connected with the guide groove (408).

8. The food packaging bag ink-jet printing apparatus according to claim 7, wherein: The side plate (406) is fixedly connected with a mounting shaft (410), and the mounting shaft (410) is rotatably connected with a pressing wheel (411).