Packaging equipment for chemical fertilizer production convenient for traceability
By setting up electromagnetic block grabbing and supporting plates in the fertilizer packaging equipment to disperse pressure, the problems of falling fertilizer packaging bags and damage to QR codes are solved, and efficient and low-cost fertilizer packaging and traceability are achieved.
Patent Information
- Application Number
- CN202421838360.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing fertilizer packaging equipment is prone to slip and damage during canning, and the traceability QR code is easily damaged, making it impossible to effectively trace the fertilizer.
A packaging equipment including a conveyor belt, a lower hopper, a grasping mechanism and an auxiliary mechanism is designed. The packaging bag is grabbed through electromagnetic blocks and the opening is expanded. The auxiliary mechanism is used to increase the focus point, and the QR code is sprayed on the inner wall of the packaging bag. The support plate is used to disperse the pressure to prevent the packaging bag from sliding and breaking.
Effectively prevent the packaging bag from slipping and breaking during canning, improve packaging efficiency, reduce the cost of fertilizer packaging, and ensure that the QR code is not easily damaged during transportation, simplifying the fertilizer traceability process.
Smart Images

Figure CN223086399U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of chemical fertilizer production, and specifically relates to a packaging device for chemical fertilizer production that is convenient for traceability. Background Art
[0002] In modern landscaping and agricultural production, chemical fertilizers can supplement nutrient elements in the soil, such as nitrogen, phosphorus, potassium, etc., helping plants grow and develop better, thereby increasing the yield and quality of crops. Appropriate application of chemical fertilizers can promote the lushness and prosperity of plants, enhance the aesthetic degree and greening effect of the landscape, and improve the quality of the living environment of urban residents; the current combination of chemical fertilizer production and blockchain technology can spray traceability QR codes on chemical fertilizer packages, enabling consumers to obtain relevant information on the production, transportation, and storage of this bag of chemical fertilizer by scanning the QR code. Due to the large purchase volume and usage amount of chemical fertilizers at one time, during the production process of chemical fertilizers, the form of opening large nylon woven bags and canning is mostly used for packaging; this form makes the packaging bags prone to slipping due to the large gravity during canning, or being damaged due to excessive pressure. Secondly, because nylon material packaging bags are used, the QR codes on their surfaces are more likely to have slight fractures of the surface nylon due to friction during transportation, resulting in the QR codes being unable to be scanned.
[0003] For example, a finished chemical fertilizer bagging device with the publication number of CN211943787U has a structure including a base, a loading table support, a loading table, a loading box, a discharge port, an upper loading box door, and a lower loading box door. The right side of the rear part of the top of the base is connected to the bottom end of the loading table support, the top end of the loading table support is connected to the right side of the rear part of the bottom end of the loading table, the middle side of the outer wall of the loading box is connected to the inner side of the loading table, the bottom end of the loading table is communicated with the top end of the discharge port, the upper loading box door is connected by a shaft in the upper part of the inner side of the loading box, and the lower loading box door is connected by a shaft in the lower part of the inner side of the loading box, and both groups of shafts are in a static state under drive control. The above-mentioned bagging device only makes the chemical fertilizer bags easy to transport through the set reducer and driving wheel, but cannot solve the problems of easy slipping during the canning process, easy damage to the packaging bags, and easy damage to the traceability QR codes. Therefore, this application designs a packaging device for chemical fertilizer production that can spray the traceability QR code onto the inner wall of the packaging bag and prevent the packaging bag from slipping during the packaging process. Summary of the Utility Model
[0004] The purpose of the present utility model is to provide a packaging device for chemical fertilizer production that is convenient for traceability, aiming to solve the above-mentioned existing problems.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a packaging device for fertilizer production that is easy to trace, comprising a conveyor belt, a lower hopper, a bracket, a heat sealer, an auxiliary mechanism, and a grabbing mechanism that opens the packaging bag and grabs it to the lower part of the lower hopper; the lower hopper is bolted to the side of the conveyor belt through the bracket, the heat sealer is arranged at the rear of the conveyor belt, the grabbing mechanism is arranged on the side of the conveyor belt, the auxiliary mechanism is bolted to the middle part of the bracket, and the auxiliary mechanism extends to the lower end of the lower hopper; two electromagnetic blocks are arranged in the grabbing mechanism, the electromagnetic blocks are slidably sleeved on the sliding rod, a spring is fixed between the two electromagnetic blocks, and the two electromagnetic blocks repel each other after power is turned on, so as to move in opposite directions, and then the packaging bag opened by the grabbing mechanism is grabbed, the auxiliary mechanism expands the opening of the packaging bag and increases the fulcrum by pulling, and a two-dimensional code that facilitates fertilizer traceability is sprayed on the inner wall of the packaging bag, and round tubes are arranged on both sides of the conveyor belt.
[0006] The sliding rod is set so that the electromagnetic block slides to both ends on the sliding rod after being energized, so as to grab the packaging bag inside the opening of the packaging bag, move the packaging bag to the bottom of the lower hopper through the grabbing mechanism, and pull and expand the packaging bag opening through the set auxiliary mechanism, thereby increasing the fulcrum of the packaging bag opening during the canning process, dispersing the pressure on the packaging bag, making it difficult for the packaging bag to slip and be damaged, reducing the fertilizer packaging cost and improving the packaging efficiency.
[0007] Furthermore, the grabbing mechanism includes a packaging frame, a connecting frame, a first electric telescopic rod, a suction rod, an air pump and an electric rotating rod. The packaging frame is arranged on the side of the conveyor belt, the side of the air pump is plugged into the back of the packaging frame, the lower end of the connecting frame is plugged into the upper end of the air pump and is internally connected, the upper part of the first electric telescopic rod is plugged into the connecting frame, the lower part of the first electric telescopic rod extends into the interior of the packaging frame, the lower part of the first electric telescopic rod is fixedly connected to the suction rod, and the first electric telescopic rod is connected to the suction rod and the interior of the connecting frame; the electric rotating rod is fixedly connected to the end of the connecting frame, the middle part of the sliding rod is plugged into the end of the electric rotating rod away from the connecting frame, and a plurality of suction cups are arranged at the lower end of the suction rod. A sliding groove is provided on the sliding rod, a slider is provided inside the electromagnetic block, and a limit is provided in the sliding groove; a roller is also provided on one side of the electromagnetic block, and a friction groove for increasing friction is provided on the surface of the roller, and a rotating shaft is provided in the middle part of the electric rotating rod, and a rotating motor is fixedly connected to one end of the rotating shaft. The air pump and the suction rod are provided to open the flat packaging bag, which is convenient for the electromagnetic block to enter the packaging bag opening. The roller is provided so that when the auxiliary mechanism pulls the packaging bag, the roller can roll on the inner wall of the packaging bag to change the position where the packaging bag is subjected to pressure, thereby preventing the auxiliary mechanism from applying excessive pressure to the packaging bag and further preventing the packaging bag from being damaged, making the canning process more controllable and reducing the material cost in the fertilizer packaging operation.
[0008] Furthermore, the auxiliary mechanism includes a second electric telescopic rod, a connecting plate, an inkjet printer and a support plate; one end of the second electric telescopic rod is fixedly connected to the bracket, the connecting plate is fixedly connected to the other end of the second electric telescopic rod, the support plate is fixedly arranged on the side of the connecting plate away from the second electric telescopic rod, and the inkjet printer is plugged into the side of the connecting plate away from the second electric telescopic rod. There are two groups of support plates, and the inkjet printer is arranged between the two groups of support plates; the support plate and the inkjet printer both extend to the lower part of the connecting plate; the heat sealing position of the heat sealing machine is lower than the inkjet printer position. The two sets of support plates are provided to support the mouth of the packaging bag in the can at multiple points, so that the pressure on the packaging bag is dispersed. At the same time, the flat area generated between the two support plates when they are pulled makes it easier for the inkjet printer to spray the traceability two-digit code on the inner wall of the packaging bag mouth, so that the two-dimensional code can be sprayed during the filling process without separate processing, and the two-dimensional code sprayed on the inner wall of the packaging bag is not easily disturbed and damaged by factors such as transportation friction; the process of fertilizer packaging is reduced, the fertilizer packaging time is shortened, and the possibility of the two-dimensional code being damaged during the fertilizer traceability work is reduced.
[0009] Compared with the prior art, it has the following beneficial effects:
[0010] The utility model provides a packaging device for fertilizer production which is easy to trace. The sliding rod is arranged so that the electromagnetic block slides to both ends on the sliding rod after being energized, so that the packaging bag is grabbed inside the opening of the packaging bag, the packaging bag is moved to below the lower hopper through the grabbing mechanism, and the opening of the packaging bag is pulled and expanded through the arranged auxiliary mechanism, so that the fulcrum of the packaging bag opening in the canning process is increased, the pressure on the packaging bag is dispersed, the packaging bag is not easy to slip and be damaged, the fertilizer packaging cost is reduced, and the packaging efficiency is improved.
[0011] The two sets of support plates are provided to support the mouth of the packaging bag in the can at multiple points, so that the pressure on the packaging bag is dispersed. At the same time, the flat area generated between the two support plates when they are pulled makes it easier for the inkjet printer to spray the traceability two-digit code on the inner wall of the packaging bag mouth, so that the two-dimensional code can be sprayed during the filling process without separate processing, and the two-dimensional code sprayed on the inner wall of the packaging bag is not easily disturbed and damaged by factors such as transportation friction; the process of fertilizer packaging is reduced, the fertilizer packaging time is shortened, and the possibility of the two-dimensional code being damaged during the fertilizer traceability work is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is an overall schematic diagram of a packaging device for fertilizer production that is easy to trace in the utility model;
[0013] Figure 2 This is a schematic diagram of a grabbing mechanism of a packaging device for fertilizer production that is easy to trace in the utility model;
[0014] Figure 3Schematic diagram of the connection of the electromagnetic block for a packaging device for fertilizer production that is convenient for traceability according to the present utility model;
[0015] Figure 4 Schematic diagram of the auxiliary mechanism of a packaging device for fertilizer production that is convenient for traceability according to the present utility model.
[0016] In the figure: 1 - conveyor belt; 11 - circular pipe; 2 - hopper; 3 - support; 4 - heat sealer; 5 - auxiliary mechanism; 51 - second electric telescopic rod; 52 - connecting plate; 53 - inkjet printer; 54 - support plate; 6 - grasping mechanism; 61 - packaging rack; 62 - connecting frame; 63 - first electric telescopic rod; 64 - suction rod; 65 - air pump; 66 - electric rotating rod; 661 - rotating shaft; 662 - rotating motor; 7 - electromagnetic block; 71 - slider; 72 - roller; 721 - friction groove; 8 - sliding rod; 81 - sliding groove; 9 - spring. Specific implementation manners
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0018] Please refer to Figures 1 to 4As shown, the utility model provides the following technical solutions: a packaging device for fertilizer production that is easy to trace, comprising a conveyor belt 1, a lower hopper 2, a bracket 3, a heat sealer 4, an auxiliary mechanism 5, and a grabbing mechanism 6 that opens the packaging bag and grabs it to the lower part of the lower hopper 2; the lower hopper 2 is bolted to the side of the conveyor belt 1 through the bracket 3, the heat sealer 4 is arranged at the rear of the conveyor belt 1, the grabbing mechanism 6 is arranged on the side of the conveyor belt 1, the auxiliary mechanism 5 is bolted to the middle of the bracket 3, and the auxiliary mechanism 5 extends to the lower end of the lower hopper 2; two electromagnetic blocks 7 are arranged in the grabbing mechanism 6, the electromagnetic blocks 7 are slidably sleeved on the slide rod 8, and a spring 9 is fixed between the two electromagnetic blocks 7. After power is turned on, the two electromagnetic blocks 7 repel each other, thereby moving in opposite directions, and then grabbing the packaging bag opened by the grabbing mechanism 6, the auxiliary mechanism 5 expands the opening of the packaging bag and increases the traction point by pulling, and sprays a two-dimensional code that is easy to trace the fertilizer on the inner wall of the packaging bag. The upper part of the lower hopper 2 is connected to the fertilizer conveying mechanism, and the produced fertilizer is transported to the lower hopper 2 by the conveying mechanism. An electric valve is provided in the lower hopper 2, and the discharge amount of the lower hopper 2 can be controlled by the controller to make the fertilizer packaging weight consistent. The grabbing mechanism 6 lifts the opening of the packaging bag by exhausting and telescoping, so that the electromagnetic block 7 enters the bag opening to grab the packaging belt, and rotates the packaging bag to the lower part of the lower hopper 2. The auxiliary mechanism 5 increases the opening and the fulcrum by telescoping and pulling the bag opening, and sprays the traceability QR code on the inner wall of the bag opening.
[0019] See also Figure 1 , round tubes 11 are provided on both sides of the conveyor belt 1. When the canning is completed, the packaging bag falls on the conveyor belt 1. The round tubes 11 prevent the packaging bag from tipping over, so that the packaging bag can smoothly enter the heat sealing machine 4 for heat sealing.
[0020] As another example, Figures 1 to 3As shown, the grabbing mechanism 6 includes a packaging frame 61, a connecting frame 62, a first electric telescopic rod 63, a suction rod 64, an air pump 65 and an electric rotating rod 66. The packaging frame 61 is arranged on the side of the conveyor belt 1, the side of the air pump 65 is plugged into the back of the packaging frame 61, the lower end of the connecting frame 62 is plugged into the upper end of the air pump 65 and is internally connected, the upper part of the first electric telescopic rod 63 is plugged into the connecting frame 62, the lower part of the first electric telescopic rod 63 extends into the interior of the packaging frame 61, the lower part of the first electric telescopic rod 63 is fixedly connected to the suction rod 64, and the first electric telescopic rod 63 is connected to the suction rod 64 and the interior of the connecting frame 62; the electric rotating rod 66 is fixedly connected to the end of the connecting frame 62, the middle part of the sliding rod 8 is plugged into the end of the electric rotating rod 66 away from the connecting frame 62, and a plurality of suction cups are arranged at the lower end of the suction rod 64. The packaging bag is placed on the packaging rack 61, and the air pump 65 evacuates air through the gas passage in the connecting rack 62 and the suction rod 64. When the canning operation is performed, the first electric telescopic rod 63 is extended downward so that the suction cup at the lower end of the suction rod 64 contacts the outer wall of the packaging bag opening, and the suction cup adsorbs the packaging bag by evacuating air, and the packaging bag opening is opened by moving the first electric telescopic rod 63 upward. The electric rotating rod 66 rotates to place the slide bar 8 and the electromagnetic block 7 into the opened packaging bag opening, and energizes the electromagnetic block 7. The energized electromagnetic block 7 repels each other and moves to both ends on the slide bar 8, thereby propping up the packaging bag inside the packaging bag to achieve the grabbing of the packaging bag, and then the packaging bag is rotated and displaced to the lower end of the lower hopper 2 and the auxiliary mechanism 5 by the rotation of the electric rotating rod 66.
[0021] See also Figure 3 The slide bar 8 is provided with a slide groove 81, the electromagnetic block 7 is provided with a slider 71 inside, and a limiter is provided inside the slide groove 81; a roller 72 is also provided on one side of the electromagnetic block 7, and a friction groove 721 is provided on the surface of the roller 72 to increase the friction force. When the electromagnetic block 7 repulsively slides on the slide bar 8, the roller 72 contacts the inner wall of the packaging bag opening and applies pressure thereto, and the friction force between the roller 72 and the inner wall of the packaging bag can be increased through the friction groove 721.
[0022] See also Figure 3 A rotating shaft 661 is provided in the middle of the electric rotating rod 66, and one end of the rotating shaft 661 is fixedly connected to a rotating motor 662. The rotating motor 662 drives the rotating shaft 661 to rotate, so that the slide bar 8 rotates in the vertical direction, and the packaging bag is rotated and displaced to the lower part of the lower hopper 2 and the auxiliary mechanism 5.
[0023] As another example, Figure 1 and Figure 4As shown, the auxiliary mechanism 5 includes a second electric telescopic rod 51, a connecting plate 52, an inkjet printer 53 and a support plate 54; one end of the second electric telescopic rod 51 is fixedly connected to the bracket 3, the connecting plate 52 is fixedly connected to the other end of the second electric telescopic rod 51, the support plate 54 is fixedly arranged on a side of the connecting plate 52 away from the second electric telescopic rod 51, and the inkjet printer 53 is plugged into a side of the connecting plate 52 away from the second electric telescopic rod 51. When the electric rotating rod 66 rotates the packaging bag to the lower part of the auxiliary mechanism 5, the support plate 54 and the inkjet printer 53 are located inside the packaging bag opening, and the second electric telescopic rod 51 moves backward, driving the support plate 54 to pull the packaging bag opening, and causing the roller 72 to roll on the inner wall of the packaging bag opening. At the same time, the two groups of support plates 54 make the inner wall of the packaging bag between them flat during the pulling process, and the inkjet printer 53 sprays a two-dimensional code on the flat inner wall. As the canning is completed, the electromagnetic block 7 is powered off and loses its repulsive force, and the spring 9 pulls the electromagnetic block 7 back to its initial position. The packaging bag loses its supporting force and slides onto the conveyor belt 1, and moves toward the heat sealer 4 under the support of the round rod, and this cycle is repeated.
[0024] See also Figure 4 , there are two groups of support plates 54, and the inkjet printer 53 is arranged between the two groups of support plates 54; the support plates 54 and the inkjet printer 53 both extend to the lower part of the connecting plate 52, and when the electric rotating rod 66 rotates the packaging bag to the lower end of the lower hopper 2, the support plates 54 and the inkjet printer 53 are both located at the inner edge of the packaging bag opening, and the packaging bag opening can be directly pulled by the contraction of the second electric telescopic rod 51, wherein the electromagnetic block 7 and the support plates 54 are located at different vertical positions in the packaging bag opening, so as to avoid interference between the support plates 54 and the inkjet printer 53 and the electromagnetic block 7.
[0025] See also Figure 1 The heat sealing position of the heat sealer 4 is lower than the coding position of the inkjet printer 53, and the heat sealing position of the packaging bag is lower than the coding position, so that the QR code is processed on the inner wall of the packaging bag opening, but the QR code can be scanned by opening the packaging bag opening. In the subsequent process, the staff can add product process information by scanning the QR code, and consumers can obtain the full process information of the bag of fertilizer products by scanning the QR code.
[0026] Working principle: When in use, the packaging bag to be canned is placed on the packaging rack 61, and the suction rod 64 is moved in the vertical direction by the extension and contraction of the first electric telescopic rod 63, and the bag mouth is opened by the pneumatic control suction cup. The electric rotating rod 66 is driven by the rotating motor 662 to rotate, so that the slide bar 8 and the electromagnetic block 7 enter the packaging bag mouth. The electromagnetic block 7 is energized to repel each other, thereby generating displacement, generating pressure on both sides of the inside of the packaging bag mouth, so that the packaging bag is grabbed, and the electric rotating rod 66 rotates to place the packaging bag in the lower hopper 2 The lower end of the auxiliary mechanism 5 drives the support plate 54 to pull the packaging bag opening through the extension and retraction of the second electric telescopic rod 51, thereby increasing the fulcrum points of the packaging bag opening, and at the same time, the roller 72 rolls on the inner wall of the packaging bag opening to make the fulcrum points more evenly distributed. At this time, the unloading hopper 2 unloads the fertilizer and pours the fertilizer into the packaging bag. At the same time, the inkjet printer 53 sprays the two-dimensional code on the flat inner wall of the packaging bag formed by the two groups of support plates 54. After the canning is completed, the electromagnetic block 7 is powered off, and the spring 9 pulls the electromagnetic block 7 to be recovered. The packaged fertilizer falls onto the conveyor belt 1 and is transported to the heat sealing machine 4 for sealing.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A packaging device for chemical fertilizer production that is convenient for traceability, characterized in that , comprising a conveyor belt (1), a lower hopper (2), a bracket (3), a heat sealer (4), an auxiliary mechanism (5), and a grabbing mechanism (6) for opening a packaging bag and grabbing it to the lower part of the lower hopper (2); the lower hopper (2) is bolted to the side of the conveyor belt (1) through the bracket (3), the heat sealer (4) is arranged at the rear of the conveyor belt (1), the grabbing mechanism (6) is arranged at the side of the conveyor belt (1), the auxiliary mechanism (5) is bolted to the middle of the bracket (3), and the auxiliary mechanism (5) The gripping mechanism (6) extends to the lower end of the lower hopper (2); two electromagnetic blocks (7) are arranged in the gripping mechanism (6), and the electromagnetic blocks (7) are slidably mounted on the slide rod (8). A spring (9) is fixed between the two electromagnetic blocks (7). After power is turned on, the two electromagnetic blocks (7) repel each other and move in opposite directions, thereby grabbing the packaging bag opened by the gripping mechanism (6). The auxiliary mechanism (5) expands the opening of the packaging bag and increases the force point by pulling, and sprays a two-dimensional code for tracing the source of fertilizers on the inner wall of the packaging bag.
2. The packaging equipment for chemical fertilizer production that is convenient for traceability according to claim 1, wherein, Circular tubes (11) are provided on both sides of the conveyor belt (1).
3. The packaging equipment for fertilizer production facilitating traceability according to claim 2, characterized in that, The grabbing mechanism (6) comprises a packaging frame (61), a connecting frame (62), a first electric telescopic rod (63), a suction rod (64), an air pump (65) and an electric rotating rod (66); the packaging frame (61) is arranged on the side of the conveyor belt (1); the side of the air pump (65) is plugged into the back of the packaging frame (61); the lower end of the connecting frame (62) is plugged into the upper end of the air pump (65) and is internally connected; the upper part of the first electric telescopic rod (63) is plugged into the connecting frame (62); the first electric The lower part of the electric telescopic rod (63) extends into the interior of the packaging frame (61); the lower part of the first electric telescopic rod (63) is fixedly connected to the suction rod (64); the first electric telescopic rod (63) is connected to the suction rod (64) and the interior of the connecting frame (62); the electric rotating rod (66) is fixedly connected to the end of the connecting frame (62); the middle part of the sliding rod (8) is plugged into the end of the electric rotating rod (66) away from the connecting frame (62); and a plurality of suction cups are arranged at the lower end of the suction rod (64).
4. The packaging equipment for chemical fertilizer production that is convenient for traceability according to claim 3, wherein, The slide rod (8) is provided with a slide groove (81), the electromagnetic block (7) is provided with a slider (71) inside, and a limiter is provided inside the slide groove (81); a roller (72) is also provided on one side of the electromagnetic block (7), and a friction groove (721) is provided on the surface of the roller (72) for increasing friction force.
5. The packaging equipment for chemical fertilizer production that is convenient for traceability according to claim 4, characterized in that, A rotating shaft (661) is provided in the middle of the electric rotating rod (66), and a rotating motor (662) is fixedly connected to one end of the rotating shaft (661).
6. The packaging equipment for chemical fertilizer production facilitating traceability according to claim 5, characterized in that, The auxiliary mechanism (5) includes a second electric telescopic rod (51), a connecting plate (52), an inkjet printer (53), and a support plate (54); one end of the second electric telescopic rod (51) is fixedly connected to the bracket (3), the connecting plate (52) is fixedly connected to the other end of the second electric telescopic rod (51), the support plate (54) is fixedly arranged on the side of the connecting plate (52) away from the second electric telescopic rod (51), and the inkjet printer (53) is inserted on the side of the connecting plate (52) away from the second electric telescopic rod (51).
7. The packaging equipment for fertilizer production facilitating traceability according to claim 6, characterized in that, There are two groups of the support plates (54), and the inkjet printer (53) is arranged between the two groups of support plates (54); both the support plate (54) and the inkjet printer (53) extend to the lower part of the connecting plate (52).
8. The packaging equipment for fertilizer production that is convenient for traceability according to claim 7, characterized in that, The heat-sealing position of the heat-sealing machine (4) is lower than the inkjet printing position of the inkjet printer (53).
Citation Information
Patent Citations
Finished product fertilizer bagging equipment
CN211943787U