Code printing device for prepackaged food

Abstract

The invention discloses a prepackaged food coding device, and relates to the field of prepackaged foods.The prepackaged food coding device comprises a workbench and a frame, feeding mechanisms are arranged on the inner side of the workbench, a fixing plate is installed between the feeding mechanisms, a scraping plate is arranged at the top of the fixing plate, and a rotating plate is arranged at one end of the scraping plate; a cleaning brush is arranged at the bottom of the rotating plate, a driving assembly is installed at the top of the frame, a coding assembly is connected to the output end of the driving assembly, and a first toothed bar is slidably arranged in an interlayer of the frame. The scraping plate is driven to slide towards the two sides under the cooperation of the transmission mechanism, the outer surface of the food packaging bag is scraped in the process, an insertion rod is extruded in the process that a toothed rod drives a guide column to move downwards, and therefore the outer surface of the food packaging bag makes contact with the bottom of the scraping plate, and the food packaging bag is scraped. And subsequently, the first toothed bar drives the fixed gear to rotate reversely, so that the top plate moves downwards to be reset into the groove.

Description

Technical Field

[0001] The present invention relates to the field of prepackaged foods, and particularly to a coding device for prepackaged foods. Background Art

[0002] Prepackaged foods refer to foods that are pre-packaged in a fixed quantity or made in packaging materials and containers, including foods that are pre-packaged in a fixed quantity and those that are pre-made in packaging materials and containers and have a unified mass or volume label within a certain quantity limit. During the sale of foods, in order to ensure the freshness of the foods, it is first necessary to perform packaging and processing on the foods. In addition, in order to improve the efficiency of food sales, corresponding coding operations need to be carried out on food packaging bags.

[0003] Existing coding operations for prepackaged foods are mostly carried out by staff placing food packaging bags on a coding table. Before each coding, it is necessary for the staff to clean the outer surface of the food packaging bag, which reduces the overall coding efficiency during this process. Subsequently, in order to prevent position deviation or double images from occurring during the coding process, it is necessary for the staff to manually smooth the surface of the packaging bag and then fix it in the middle position. After the coding is completed, it is then disassembled and placed in a collection box. This is too wasteful of the staff's human and material resources.

[0004] In summary, the above structure requires the staff to clean the outer surface of the food packaging bag before coding, which reduces the overall coding efficiency during this process. At the same time, during the coding process, it is necessary for the staff to manually smooth and place it, which is too wasteful of the staff's human and material resources. Summary of the Invention

[0005] Based on this, the object of the present invention is to provide a coding device for prepackaged foods to solve the technical problems that it is necessary for the staff to clean the outer surface of the food packaging bag, which reduces the overall coding efficiency during this process, and at the same time, it is necessary for the staff to manually smooth and place it during the coding process, which is too wasteful of the staff's human and material resources.

[0006] To achieve the above object, the present invention provides the following technical solution: A coding device for prepackaged food, comprising a workbench and a frame. A feeding mechanism is rotatably arranged inside the workbench, and a fixing plate is fixedly installed between the feeding mechanisms. Scrapers are symmetrically and slidably arranged on the top of the fixing plate, and a rotating plate is rotatably arranged at one end of the scraper. A cleaning brush is installed at the bottom of the rotating plate. A driving component is installed on the top of the frame, and a coding component is connected to the output end of the driving component through the frame. A first toothed rod is slidably arranged in the sandwich layer of the frame, and a fixed gear is engaged with one side of the first toothed rod. One end of the fixed gear is connected to a bidirectional threaded rod that cooperates with the scraper through a transmission component. The bottom of the first toothed rod is elastically connected to a guide post, and a plug rod that cooperates with the guide post is elastically slidably connected inside the workbench. A protrusion is arranged on the outer wall of the plug rod. A groove is formed on the fixing plate, and a top plate is elastically arranged in the groove. A top rod is connected to the bottom of the top plate, and a jack that cooperates with the protrusion is formed on the top rod.

[0007] By adopting the above technical solution, the scraper is driven to slide to both sides through the cooperation of the transmission mechanism. During this process, the outer surface of the food packaging bag is leveled. When the toothed rod drives the guide post to move downward, the plug rod will be squeezed, thereby realizing that the top plate is pushed upward by the top rod, so that the outer surface of the food packaging bag is in contact with the bottom of the scraper. Subsequently, the first toothed rod drives the fixed gear to reverse. At this time, the protrusion slides out of the jack, so that the top plate moves downward and resets to the inside of the groove. At this time, the reset process of the scraper will not affect the drying of the ink on the food packaging bag.

[0008] The present invention is further configured such that a through hole is formed in the scraper, and a second toothed rod is connected to one side of the scraper. Tooth blocks are locally arranged on the second toothed rod. An adjusting gear that meshes with the second toothed rod is rotatably arranged inside the through hole, and the bottom of the adjusting gear is connected to the rotating plate.

[0009] By adopting the above technical solution, the second toothed rod drives the adjusting gear to rotate forward. At this time, the scraper and the rotating plate will be arranged in an L shape, and the cleaning brush at the bottom of the rotating plate will clean the food packaging bag once. Subsequently, during the process of the scraper sliding to both sides, the second toothed rod will drive the adjusting gear to reverse. At this time, the scraper and the rotating plate will be arranged vertically, and while leveling the food packaging bag, the outer surface of the food packaging bag is cleaned for the second time.

[0010] The present invention is further configured such that a roller is connected to the bottom end of the rotating plate, and a cleaning brush is connected to one end of the roller.

[0011] By adopting the above technical solution, the turning plate and the scraping plate are arranged in an L shape under normal conditions. At this time, when the winding roller is driven by the winding motor to rotate and wind the food packaging bag, the roller will drive the cleaning brush to rotate. During the subsequent unfolding process of the scraping plate, the turning plate and the scraping plate are arranged vertically. At this time, when the scraping plate slides to both sides, it will also drive the roller to rotate, thereby further improving the cleaning effect on the overall food packaging bag.

[0012] The present invention is further configured such that the feeding mechanism includes a feeding roller, a winding roller, and a winding motor. A winding motor is installed on one side of the workbench, and the output end of the winding motor penetrates through the workbench and is connected to the winding roller. The other end of the winding roller inside the workbench is connected to the feeding roller.

[0013] By adopting the above technical solution, the staff places the food packaging bag to be coded on the feeding roller, and then starts the winding motor on one side of the workbench. Under the action of the winding motor, the winding roller is driven to rotate, thereby realizing the winding of the food packaging bag on the feeding roller onto the winding roller.

[0014] The present invention is further configured such that the driving component is a coding cylinder, and the coding cylinder is used to drive the coding component at the output end to slide up and down.

[0015] By adopting the above technical solution, under the action of the cylinder, it is convenient for the staff to control the up and down movement of the coding component, improving the overall practicality of the device.

[0016] The present invention is further configured such that the coding component includes a sliding plate, a slider, and a coding template. The output end of the coding cylinder is connected to the sliding plate, and a coding template is connected to the bottom of the sliding plate.

[0017] By adopting the above technical solution, under the action of the coding cylinder, the sliding plate will be driven to slide downward, and at the same time, the coding template will follow and move downward to the position of the food packaging bag.

[0018] The present invention is further configured such that a sliding groove for the slider to slide is provided inside the frame, and one side of the slider is connected to the first tooth bar. One end of the fixed gear is connected to a transmission mechanism, and the other end of the transmission mechanism is connected to a bidirectional threaded rod.

[0019] By adopting the above technical solution, during the sliding process of the sliding plate, the cooperation between the slider and the sliding groove makes the sliding of the sliding plate stable. At the same time, the coding effect on the food packaging bag is improved, and during the sliding process of the slider, it will drive the first tooth bar at one end to move downward.

[0020] The present invention is further configured such that threaded sleeves are symmetrically arranged on the outer wall of the bidirectional threaded rod, and support columns are connected to the tops of the threaded sleeves, and the other ends of the support columns are connected to the scraper.

[0021] By adopting the above technical solution, during the rotation of the bidirectional threaded rod, the symmetrically arranged threaded sleeves slide. During this process, the threaded sleeves drive the scraper to slide through the support columns at the tops, thereby realizing the adjustment of the position of the scraper inside the workbench.

[0022] The present invention is further configured such that an inner groove for the guide post to be inserted into is provided on the workbench, and the guide post is elastically connected to the first toothed rod, and an elastic component is arranged on the outer wall of the plug rod.

[0023] By adopting the above technical solution, during the downward sliding of the first toothed rod, the guide post will be extruded. At this time, when the elastic force at one end of the guide post is greater than the action of the elastic component, the guide post is extruded and moves to one side. Subsequently, during the upward reset sliding of the first toothed rod, the acting force of the guide post will decrease. At this time, the action of the elastic component will be greater than the self-elastic force of the guide post, thereby realizing the reset of the guide post under the action of the elastic component.

[0024] The present invention is further configured such that the feeding roller and the winding roller are both detachably arranged on the workbench.

[0025] By adopting the above technical solution, the detachable setting facilitates the staff to take the food packaging bags on the winding roller and the feeding roller. This process greatly reduces the work burden of the staff.

[0026] In summary, the present invention mainly has the following beneficial effects: The present invention realizes the dust removal treatment of the food packaging bag before coding through the cleaning brush rotatably arranged at the bottom of the rotating plate during the conveying process by the conveying mechanism. During the process of the sliding plate driving the coding template to move downward for coding, the first toothed rod will drive the fixed gear to rotate, and through the cooperation of the transmission mechanism, the scraper is driven to slide to both sides. During this process, the leveling work of the outer surface of the food packaging bag is completed. Subsequently, during the upward sliding after coding is completed, the first toothed rod drives the fixed gear to reverse, and at this time, the scraper is reset to facilitate the leveling work of the subsequent food packaging bags. This process saves a large amount of manpower and material resources and improves the overall coding efficiency; In the present invention, a guide post is provided at the bottom of the first toothed rod. During the process of the toothed rod driving the guide post to move downward, the inserting rod will be squeezed, causing the inserting rod to move to one side. During this process, the protrusion on the inserting rod will be stuck into the jack on the ejector rod, thereby realizing the upward pushing of the top plate by the ejector rod, causing the food packaging bag at the top plate to move upward. At this time, the outer surface of the food packaging bag comes into contact with the bottom of the scraping plate, thus ensuring the leveling effect during the sliding process of the scraping plate. Subsequently, during the upward movement of the coding template, under the action of the elastic component, the inserting rod will slide back to one side, and at this time, the protrusion slides out of the jack, thereby causing the top plate to move downward and reset into the groove. At this time, the reset process of the scraping plate will not affect the drying of the ink on the food packaging bag, further improving the overall coding efficiency; In the present invention, through holes are provided on the scraping plate, and a second toothed rod is provided on one side of the scraping plate. During the process of the scraping plate resetting inward after coding is completed, the second toothed rod drives the adjusting gear to rotate forward. At this time, the scraping plate and the rotating plate are arranged in an L shape. During the process of winding the food packaging bag by the winding roller, the cleaning brush at the bottom of the rotating plate will clean the food packaging bag once. Subsequently, during the process of the scraping plate sliding to both sides, the second toothed rod will drive the adjusting gear to rotate in reverse. At this time, the scraping plate and the rotating plate are arranged vertically, and while leveling the food packaging bag, the outer surface of the food packaging bag is cleaned for the second time, thereby further improving the subsequent coding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the front perspective view of the present invention; Figure 2 is the rear perspective view of the present invention; Figure 3 is the bottom view of the present invention; Figure 4 is the cross-sectional view of the present invention; Figure 5 is the schematic diagram of the gear and toothed rod transmission structure of the present invention; Figure 6 is the schematic diagram of the unfolded structure of the rotating plate of the present invention; Figure 7 is the cross-sectional view of the rotating plate of the present invention: Figure 8 is the schematic diagram of the scraping plate and rotating plate structure of the present invention; Figure 9 of the present invention Figure 2 is the enlarged view of A in; Figure 10 of the present invention Figure 3 is the enlarged view of B in; Figure 11 is the schematic diagram of the guide post and inserting rod structure of the present invention.

[0028] In the figure: 1, workbench; 2, frame; 3, coding cylinder; 4, winding motor; 5, fixed plate; 6, feeding roller; 7, rotating plate; 8, winding roller; 9, groove; 10, top plate; 11, scraping plate; 12, bidirectional threaded rod; 13, sliding plate; 14, slider; 15, coding template; 16, chute; 17, cleaning brush; 18, inserting rod; 19, ejector rod; 20, fixed gear; 21, first toothed rod; 22, guide post; 23, transmission mechanism; 24, adjusting gear; 25, through hole; 26, roller; 27, support column; 28, toothed block; 29, second toothed rod; 30, support sleeve; 31, protrusion; 32, jack; 33, elastic component. Specific embodiments

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0030] The embodiments of the present invention will be described below according to its overall structure. Embodiment 1

[0031] A pre-packaged food coding device, as Figures 1 - 11 shown, includes a workbench 1, a frame 2, a coding assembly, a scraping mechanism, a cleaning mechanism and a winding mechanism. A winding motor 4 is installed on one side of the workbench 1, and the output end of the winding motor 4 penetrates through the workbench 1 and is connected to a winding roller 8. The other end of the winding roller 8 is connected to a feeding roller 6 inside the workbench 1. The staff places the food packaging bag to be coded on the feeding roller 6, and the other end passes through the inside of the frame 2 and is connected to the winding roller 8. Then, the winding motor 4 on one side of the workbench is started, and the winding roller 8 is driven to rotate under the action of the winding motor 4, thereby realizing the winding of the food packaging bag on the feeding roller 6 onto the winding roller 8. At the same time, a fixed plate 5 is fixedly installed between the feeding roller 6 and the winding roller 8. Scraping plates 11 are symmetrically and slidably arranged on the top of the fixed plate 5. A rotating plate 7 is rotatably arranged at one end of the scraping plate 11, and a cleaning brush 17 is installed at the bottom of the rotating plate 7. Under the action of the cleaning brush 17, dust removal treatment is carried out on the food packaging bag before coding during the conveying process; Subsequently, a groove 9 is provided on the fixing plate 5, and a top plate 10 is elastically arranged in the groove 9. When the food packaging bag moves to the position of the top plate 10, the winding motor 4 stops rotating. And a coding cylinder 3 is arranged at the top of the frame 2. Under the action of the coding cylinder 3, it will drive the coding component to move downward to perform coding work on the food packaging bag. And sliders 14 are arranged at both ends of the coding component. A sliding groove 16 for the sliders 14 to slide is opened on the inner side of the frame 2. And one side of the slider 14 is connected to a first toothed rod 21. And a fixed gear 20 is meshed with one side of the first toothed rod 21. A transmission mechanism 23 is connected to one end of the fixed gear 20. And a bidirectional threaded rod 12 is connected to the other end of the transmission mechanism 23. During the sliding process of the coding component, the cooperation between the slider 14 and the sliding groove 16 ensures the stability of the sliding of the coding component, and at the same time improves the coding effect on the food packaging bag. And when the slider 14 slides, it will drive the first toothed rod 21 at one end to move downward. Through the cooperation with the fixed gear 20, it realizes driving the transmission mechanism 23 to rotate. The bottom of the first toothed rod 21 is elastically connected to a guide post 22. And a plug rod 18 that cooperates with the guide post 22 is elastically slidably connected to the inner side of the workbench 1. A protrusion 31 is arranged on the outer wall of the plug rod 18; And the bottom of the top plate 10 is connected to a top rod 19. And a jack 32 that cooperates with the protrusion 31 is opened on the top rod 19. During the downward movement of the first toothed rod 21, the plug rod 18 will be squeezed and move to one side. At this time, the protrusion 31 is inserted into the inside of the jack 32. Since a support sleeve 30 is arranged on the outer wall of the top rod 19, the top rod 19 can slide vertically under the action of the support sleeve 30. Subsequently, the top rod 19 will drive the top plate 10 to jack up. At this time, the bottom of the scraper 11 will contact the food packaging bag on the top of the top plate 10. At the same time, under the action of the bidirectional threaded rod 12, the scraper 11 is driven to slide to both sides to complete the leveling work on the outer surface of the food packaging bag. Subsequently, after the coding component finishes coding, the first toothed rod 21 will drive the fixed gear 20 to reverse. At this time, the scraper 11 is reset to facilitate the leveling work on the subsequent food packaging bags. A large amount of manpower and material resources are saved in this process, and the overall coding efficiency is accelerated. And the coding cylinder 3 will drive the coding component to slide upward and reset. At this time, the guide post 22 releases the extrusion work on the plug rod 18, so that the protrusion 31 slides out of the jack 32, thereby driving the top plate 10 to reset and slide into the groove 9. At this time, the reset process of the scraper 11 will not affect the drying of the ink on the food packaging bag, further improving the overall coding efficiency.

[0032] Please refer to Figure 3 and Figure 4, the coding component includes a sliding plate 13, a slider 14 and a coding template 15. The sliding plate 13 is connected to the output end of the coding cylinder 3, and the coding template 15 is connected to the bottom of the sliding plate 13. Under the action of the coding cylinder 3, the sliding plate 13 will slide downward, and at the same time, the coding template 15 will move downward to the food packaging bag.

[0033] Please refer to Figure 2 , threaded sleeves are symmetrically arranged on the outer wall of the bidirectional threaded rod 12, and support columns 27 are connected to the tops of the threaded sleeves, and the other ends of the support columns 27 are connected to the scraper 11. During the rotation of the bidirectional threaded rod 12, the symmetrically arranged threaded sleeves slide. During this process, the threaded sleeves will drive the scraper 11 to slide through the support columns 27 at the top, thereby realizing the adjustment of the position of the scraper 11 inside the workbench 1.

[0034] Please refer to Figure 11 , an inner groove for the guide post 22 to be inserted is provided on the workbench 1, and the guide post 22 is elastically connected to the first toothed rod 21. An elastic component 33 is arranged on the outer wall of the insertion rod 18. During the downward sliding of the first toothed rod 21, the guide post 22 will be squeezed. At this time, the elastic force at one end of the guide post 22 is greater than the action of the elastic component 33, so that the guide post 22 is squeezed and moves to one side. Subsequently, during the upward reset sliding of the first toothed rod 21, the acting force of the guide post 22 will decrease. At this time, the action of the elastic component 33 will be greater than the elastic force of the guide post 22 itself, so that the guide post 22 is reset under the action of the elastic component 33. Embodiment 2

[0035] Please refer to Figure 2 and Figure 8 A pre-packaged food coding device shown, the overall structure is similar to that of Embodiment 1. A through hole 25 is provided through the scraper 11, and a second toothed rod 29 is connected to one side of the scraper 11, and tooth blocks 28 are partially arranged on the second toothed rod 29. An adjusting gear 24 meshing with the second toothed rod 29 is rotatably arranged inside the through hole 25, and the adjusting gear 24 is connected to the rotating plate 7 at the bottom. By driving the adjusting gear 24 to rotate forward by the second toothed rod 29, at this time, the scraper 11 and the rotating plate 7 will be arranged in an L shape, and the cleaning brush 17 at the bottom of the rotating plate 7 will clean the food packaging bag once. Subsequently, during the sliding of the scraper 11 to both sides, the second toothed rod 29 will drive the adjusting gear 24 to rotate in reverse. At this time, the scraper 11 and the rotating plate 7 will be arranged vertically. While flattening the food packaging bag, the outer surface of the food packaging bag is cleaned for the second time, thereby further improving the subsequent coding effect.

[0036] Please refer to Figure 8, a roller 26 is connected to the bottom end of the turning plate 7, and one end of the roller 26 is connected to the cleaning brush 17. In the normal state, the turning plate 7 and the scraping plate 11 are arranged in an L shape. At this time, when the winding motor 4 drives the winding roller 8 to rotate and wind the food packaging bag, the roller 26 will drive the cleaning brush 17 to rotate. During the subsequent unfolding process of the scraping plate 11, the turning plate 7 and the scraping plate 11 are arranged vertically. At this time, when the scraping plate 11 slides to both sides, it will also drive the roller 26 to rotate, thereby further improving the cleaning effect on the overall food packaging bag.

[0037] The working principle of the present invention is as follows: When in use, the food packaging bag to be coded is wound on the feeding roller 6, and then the winding motor 4 on one side of the workbench 1 is started. Under the action of the winding motor 4, the winding roller 8 is driven to rotate. At this time, the food packaging bag on the feeding roller 6 will be slowly conveyed to one side. Due to the cleaning brush 17 rotatably arranged at the bottom of the turning plate 7, dust removal treatment is carried out on the food packaging bag before coding during the conveying process by the conveying mechanism. With the cooperation of the feeding roller 6 and the winding roller 8, the food packaging bag is kept in a taut state in the conveying direction, and the food packaging bag is moved to the top plate 10. Then, the coding cylinder 3 at the top of the frame 2 is started to drive the sliding plate 13 to slide downward. During this process, the fixed gear 20 is driven to rotate by the first tooth bar 21, and the bidirectional threaded rod 12 is driven to rotate in cooperation with the transmission mechanism 23. At this time, the scraping plate 11 will slide to both sides; At the same time, the guide post 22 at the bottom of the first tooth bar 21 will squeeze the plug rod 18 at one end. At this time, the plug rod 18 drives the protrusion 31 to be inserted into the jack 32, thereby realizing that the ejector rod 19 drives the top plate 10 to move upward. At this time, the outer surface of the food packaging bag at the top plate 10 is in contact with the bottom of the scraping plate 11. During the process of the scraping plate 11 sliding to both sides, the leveling work of the outer surface of the food packaging bag is completed. At the same time, after coding is completed, the coding cylinder 3 drives the coding template 15 to slide upward and reset. At this time, under the action of the elastic component 33, the plug rod 18 slides to one side for reset. During this process, the protrusion 31 will slide out of the jack 32, thereby enabling the top plate 10 to reset to the inside of the groove 9, ensuring that the outer surface of the coded food packaging bag will not be in contact with the scraping plate 11, and thus ensuring that the reset process of the scraping plate 11 will not affect the drying of the ink on the food packaging bag, further improving the overall coding efficiency.

[0038] Although embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not contribute creatively to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A pre-packaged food coding device, comprising a workbench (1) and a frame (2), characterized in that: A feeding mechanism is rotatably arranged inside the workbench (1), and a fixing plate (5) is fixedly installed between the feeding mechanisms. Scrapers (11) are symmetrically and slidably arranged on the top of the fixing plate (5). A rotating plate (7) is rotatably arranged at one end of the scraper (11). A cleaning brush (17) is installed at the bottom of the rotating plate (7). A driving component is installed on the top of the frame (2), and a coding component is connected to the output end of the driving component through the frame (2). A first toothed rod (21) is slidably arranged in the sandwich layer of the frame (2). A fixed gear (20) is engaged with one side of the first toothed rod (21). One end of the fixed gear (20) is connected to a bidirectional threaded rod (12) that cooperates with the scraper (11) through a transmission component. The bottom of the first toothed rod (21) is elastically connected to a guide post (22), and a plug rod (18) that cooperates with the guide post (22) is elastically and slidably connected to the inside of the workbench (1). A protrusion (31) is arranged on the outer wall of the plug rod (18). A groove (9) is formed in the fixing plate (5), and a top plate (10) is elastically arranged in the groove (9). A top rod (19) is connected to the bottom of the top plate (10), and a jack (32) that cooperates with the protrusion (31) is formed on the top rod (19).

2. The pre-packaged food coding device according to claim 1, characterized in that: A through hole (25) is formed through the scraper (11). A second toothed rod (29) is connected to one side of the scraper (11). Tooth blocks (28) are partially arranged on the second toothed rod (29). An adjusting gear (24) that meshes with the second toothed rod (29) is rotatably arranged inside the through hole (25). The bottom of the adjusting gear (24) is connected to the rotating plate (7).

3. A pre-packaged food coding device according to claim 2, characterized in that: A roller (26) is connected to the bottom end of the rotating plate (7), and one end of the roller (26) is connected to the cleaning brush (17).

4. A pre-packaged food coding device according to claim 1, characterized in that: The feeding mechanism includes a feeding roller (6), a winding roller (8) and a winding motor (4). A winding motor (4) is installed on one side of the workbench (1), and the output end of the winding motor (4) passes through the workbench (1) and is connected to the winding roller (8). The other end of the winding roller (8) inside the workbench (1) is connected to a feeding roller (6).

5. A pre-packaged food coding device according to claim 1, characterized in that: The driving component is a coding cylinder (3), and the coding cylinder (3) is used to drive the coding component at the output end to slide up and down.

6. The pre-packaged food coding device according to claim 5, characterized in that: The coding component includes a sliding plate (13), a slider (14) and a coding template (15). The output end of the coding cylinder (3) is connected to the sliding plate (13), and a coding template (15) is connected to the bottom of the sliding plate (13).

7. A pre-packaged food coding device according to claim 6, characterized in that: A sliding groove (16) for the slider (14) to slide is formed inside the frame (2). One side of the slider (14) is connected to the first toothed rod (21). One end of the fixed gear (20) is connected to a transmission mechanism (23), and the other end of the transmission mechanism (23) is connected to the bidirectional threaded rod (12).

8. A pre-packaged food coding device according to claim 7, characterized in that: The outer wall of the bidirectional threaded rod (12) is symmetrically provided with threaded sleeves, and a support column (27) is connected to the top of the threaded sleeve, and the other end of the support column (27) is connected to the scraper (11).

9. A pre-packaged food coding device according to claim 1, characterized in that: An inner groove for the guide post (22) to be inserted into is provided on the workbench (1), and the guide post (22) is elastically connected to the first toothed rod (21), and an elastic component (33) is arranged on the outer wall of the insertion rod (18).

10. A pre-packaged food coding device according to claim 4, characterized in that: The feeding roller (6) and the winding roller (8) are both detachably arranged on the workbench (1).

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