Fixed-distance conveying device for packaging bagged prefabricated dishes

Abstract

The invention provides a fixed-distance conveying device for packaging bagged prefabricated dishes, and relates to the technical field of food conveying, the fixed-distance conveying device comprises a conveying positioning protection plate, four conveying vertical rods are mounted at the top of the conveying positioning protection plate, four driving cylinders are further mounted at the top of the conveying positioning protection plate, and two guide sliding rails are mounted at the output ends of the four driving cylinders; two guide sliding rods are mounted on the inner side of the guide sliding rail in a sliding manner; a guide sliding plate is mounted in the guide sliding groove in a sliding manner; and a spacing adjusting plate is mounted at the bottom of the guide sliding plate. The flattening guide wheels made of rubber materials make contact with the prefabricated vegetables after rotating, the bagged prefabricated vegetables can be effectively sorted to be flattened, the problems of stacking and the like caused by irregular shapes of the prefabricated vegetables on the conveying belt assembly are solved, the workload of manual sorting is reduced, and the problems that the bagged prefabricated vegetables are irregular in shape in the conveying process, and the conveying efficiency is improved are solved. And workers need to arrange the shapes of the prefabricated dishes, so that the overall packaging efficiency is reduced.

Description

Technical Field

[0001] This invention relates to the field of food conveying technology, and in particular to a fixed-distance conveying device for bagged pre-prepared vegetable packaging. Background Technology

[0002] Pre-prepared meals are a product of the food industry. They refer to pre-packaged dishes made from edible agricultural products and their products through industrial pre-processing, which require heating or cooking before consumption. Bagged pre-prepared meals require conveying devices for transportation during packaging to improve the efficiency of pre-prepared meal packaging.

[0003] In existing technologies, when pre-prepared vegetables move on the conveyor, the inherent fluidity of the pre-prepared vegetables inside the bags causes them to take on irregular shapes during transport. When these irregularly shaped pre-prepared vegetables are delivered to the packaging box, workers need to manually straighten their shapes, increasing their workload and reducing overall packaging efficiency. Furthermore, in pursuit of high efficiency, the conveyor often maintains a relatively fast conveying speed, which may cause stacking problems when dealing with irregularly shaped pre-prepared vegetables. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a fixed-distance conveying device for bagged pre-prepared food packaging, thereby solving the problems mentioned in the background section.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a fixed-distance conveying device for bagged pre-prepared food packaging, specifically comprising: a conveying and positioning guard plate; a control box mounted on the outer side of the conveying and positioning guard plate; support legs mounted on the bottom of the conveying and positioning guard plate; a drive motor mounted on one end of the conveying and positioning guard plate; a drive assembly mounted on the output end of the drive motor; the drive assembly being located inside the conveying and positioning guard plate; four conveying vertical rods mounted on the top of the conveying and positioning guard plate; and four drive cylinders mounted on the top of the four drive cylinders; two guide rails mounted on the output ends of the four drive cylinders; the guide rails... Two guide rails are slidably installed on the inner side; a movable carrier plate is installed between the two guide rails; the two ends of the two guide rails are slidably installed on the outer side of the conveying vertical rod, and a connecting plate is installed between one end of the two guide rails. A drive cylinder is installed on the connecting plate, and the output end of the drive cylinder is connected to the side of one of the guide rails; the movable carrier plate is provided with multiple guide grooves, and a support plate is installed on the top of the movable carrier plate; a rotating plate is rotatably installed on the support plate; a guide slide plate is slidably installed inside the guide groove; and a spacing adjustment plate is installed at the bottom of the guide slide plate.

[0006] Furthermore, positioning rings and flow guides are respectively installed on the inner sides of the conveying positioning guard plate; a conveyor belt assembly is rotatably installed on the drive assembly inside the conveying positioning guard plate.

[0007] Furthermore, the outer side of the conveyor belt assembly is provided with multiple evenly distributed adsorption holes, and the two sides of the conveyor belt assembly are respectively provided with airflow grooves and operation grooves; the inner end of the positioning ring is installed in the operation groove on one side of the conveyor belt assembly.

[0008] Furthermore, the inner end of the flow guide is installed in the airflow groove on the other side of the conveyor belt assembly; a drive pump is installed on the other side of the conveyor positioning guard plate, and a main flow pipe is installed on the output end of the drive pump.

[0009] Furthermore, a diversion pipe is connected to the side end of the main pipe; the side end of the diversion pipe passes through the other side of the conveyor positioning guard plate and is connected to the flow guide shroud; multiple evenly distributed rotating pipes are rotatably installed inside the conveyor belt assembly.

[0010] Furthermore, one end of the rotating tube is located in the airflow groove on the other side of the conveyor belt assembly, the inner side of one end of the rotating tube is connected to the inside of the guide shroud, the outer side of the rotating tube is provided with a guide groove, the other end of the rotating tube is located in the operation groove on one side of the conveyor belt assembly, and the other end of the rotating tube is provided with an adjustment insertion hole; the guide groove can be connected to the adsorption hole.

[0011] Furthermore, a slot is provided on one side of the conveying positioning guard plate, and a traction rope is installed on the slot. The side end of the traction rope is connected to an insert plate; the side end of the insert plate is inserted into the adjustment hole.

[0012] Furthermore, a connecting rod is rotatably mounted at the middle position of the top of the guide slide plate; a drive cylinder is mounted at the middle position of the rotating plate, and the output end of the drive cylinder is connected to the middle position of the connecting rod.

[0013] Furthermore, a displacement sensor is installed at the bottom of the spacing adjustment plate, a guide groove is provided on the side of the spacing adjustment plate, a drive cylinder is installed on one side of the spacing adjustment plate, and a traction plate is installed on the output end of the drive cylinder; a shape adjustment panel is installed on the side end of the traction plate through the guide groove.

[0014] Furthermore, a displacement sensor and a vision sensor are installed on the outer side of the shape adjustment panel. The shape adjustment panel is located on the other side of the spacing adjustment plate. A positioning groove is provided on the top side of the shape adjustment panel. Multiple smoothing guide wheels are rotatably installed on the shape adjustment panel. The side ends of the smoothing guide wheels are connected by a chain assembly. A drive motor is installed inside the positioning groove. The output end of the drive motor is connected to the chain assembly on the side end of the smoothing guide wheel.

[0015] This invention provides a fixed-distance conveying device for packaging bagged pre-prepared vegetables, which has the following beneficial effects: In use, when the spacing adjustment plate is located on one side of the pre-prepared food, the drive cylinder drives the traction plate to move the shape adjustment panel above the pre-prepared food. The vision sensor on the shape adjustment panel detects the shape of the pre-prepared food. The servo motor, with the help of the chain assembly, makes multiple smoothing guide wheels rotate simultaneously. After the rubber smoothing guide wheels rotate, they come into contact with the pre-prepared food and effectively straighten the bagged pre-prepared food, avoiding problems such as stacking of pre-prepared food on the conveyor belt assembly due to irregular shape. This reduces the amount of manual sorting work, speeds up the conveyor belt assembly's transport of pre-prepared food for boxing, and improves the efficiency and quality of pre-prepared food packaging.

[0016] In addition, displacement sensors on the spacing adjustment plate and shape adjustment panel detect the positions of multiple bagged pre-prepared vegetables on the conveyor belt assembly. The top drive cylinder of the conveyor positioning guard plate drives the guide rail to move down, and the drive cylinder drives the guide slide plate to move along the guide groove. The bottom of multiple guide slide plates drives multiple spacing adjustment plates to adjust the positions of multiple pre-prepared vegetables. This avoids the problem of inaccurate adjustment caused by the asynchronous movement and adjustment of the conveyor belt assembly, ensuring the accuracy of position adjustment. The spacing of the pre-prepared vegetables is adjusted during the rapid movement of the conveyor belt assembly. The pre-prepared vegetables move efficiently on the conveyor belt assembly, reducing the packaging waiting time caused by the messy position and uneven spacing of the pre-prepared vegetables, and improving the packaging efficiency of pre-prepared vegetables. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A cross-sectional view of the conveying and positioning guard plate of the present invention is shown; Figure 3 A cross-sectional view of the conveyor belt assembly of the present invention is shown; Figure 4 A schematic cross-sectional view of the rotating tube structure of the present invention is shown; Figure 5 A three-dimensional structural diagram of the movable carrier plate of the present invention is shown; Figure 6 A three-dimensional structural diagram of the support plate of the present invention is shown; Figure 7 A three-dimensional structural diagram of the guide slide plate of the present invention is shown; Figure 8 A three-dimensional structural diagram of the bottom of the spacing adjustment plate of the present invention is shown; Figure 9 A cross-sectional view of the shape adjustment panel of the present invention is shown.

[0020] List of reference numerals 1. Conveyor positioning guard plate; 101. Positioning ring; 102. Flow guide shroud; 103. Conveyor belt assembly; 104. Adsorption hole; 105. Main flow pipe; 106. Diverter pipe; 107. Rotating pipe; 108. Flow guide groove; 109. Adjustment socket; 1010. Insert plate; 2. Conveying vertical rod; 201. Guide slide rail; 202. Guide slide rod; 203. Movable carrier plate; 204. Guide slide groove; 205. Support plate; 206. Rotating plate; 207. Guide slide plate; 208. Connecting rod; 3. Spacing adjustment plate; 301. Guide vertical groove; 302. Traction plate; 303. Shape adjustment panel; 304. Positioning groove; 305. Smoothing guide wheel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please refer to Figures 1 to 9 : Example 1: This invention proposes a fixed-distance conveying device for bagged pre-prepared vegetables, comprising: a conveying positioning guard plate 1; a control operation box installed on the outer side of the conveying positioning guard plate 1; support legs installed at the bottom of the conveying positioning guard plate 1; a drive motor installed at one end of the conveying positioning guard plate 1; a drive assembly installed on the output end of the drive motor; the drive assembly being located inside the conveying positioning guard plate 1; positioning rings 101 and flow guides 102 respectively installed on the inner sides of the conveying positioning guard plate 1; a conveyor belt assembly 103 rotatably mounted on the drive assembly inside the conveying positioning guard plate 1; multiple evenly distributed suction holes 104 provided on the outer side of the conveyor belt assembly 103; airflow grooves and operation grooves respectively provided on both sides of the conveyor belt assembly 103; the inner end of the positioning ring 101 installed in the operation groove on one side of the conveyor belt assembly 103; the inner end of the flow guide 102 installed in the airflow groove on the other side of the conveyor belt assembly 103; and a support leg installed on the other side of the conveying positioning guard plate 1. The conveyor belt assembly 103 is equipped with a drive pump, and a main flow pipe 105 is installed on the output end of the drive pump. A diversion pipe 106 is connected to the side end of the main flow pipe 105. The side end of the diversion pipe 106 passes through the other side of the conveyor positioning guard plate 1 and is connected to the flow guide shroud 102. Multiple evenly distributed rotating pipes 107 are rotatably installed inside the conveyor belt assembly 103. One end of the rotating pipe 107 is located in the airflow groove on the other side of the conveyor belt assembly 103, and the inner side of one end of the rotating pipe 107 is connected to the inside of the flow guide shroud 102. A flow guide groove 108 is provided on the outer side of the rotating pipe 107. The other end of the rotating pipe 107 is located in the operation groove on one side of the conveyor belt assembly 103. An adjustment insertion hole 109 is provided at the other end of the rotating pipe 107. The flow guide groove 108 can be connected to the adsorption hole 104. A slot is provided on one side of the conveyor positioning guard plate 1, and a traction rope is installed on the slot. An insertion plate 1010 is connected to the side end of the traction rope. The side end of the insertion plate 1010 is inserted into the adjustment insertion hole 109.

[0023] In this embodiment of the invention, when packaging bagged pre-prepared vegetables, the positions of multiple rotating tubes 107 are adjusted according to the spacing of the pre-prepared vegetables on the conveyor device. An insert plate 1010 is inserted into the adjustment hole 109 at the other end of the rotating tube 107 inside the operating groove on one side of the conveyor belt assembly 103 via a slot on one side of the conveyor positioning guard plate 1. Rotating the insert plate 1010 causes the rotating tube 107 to rotate inside the conveyor belt assembly 103, connecting the guide groove 108 with the adsorption hole 104. This results in the guide grooves 108 on the multiple rotating tubes 107 rotating and being alternately connected to the adsorption holes 104, ensuring that the adsorption holes 104 that can adsorb the pre-prepared vegetables are distributed at a certain spacing. The pre-prepared vegetables are placed on the conveyor belt assembly 103, and the conveyor positioning guard plate 1... The drive assembly at the output end of the drive motor on one side drives the conveyor belt assembly 103 to move, thereby conveying the pre-cooked food. The positioning ring 101 positions the movement of the conveyor belt assembly 103. At the same time, the drive pump on the other side of the conveyor positioning guard plate 1 works. The external airflow flows through the adsorption hole 104 and the guide groove 108 into the interior of the rotating tube 107, so that the adsorption hole 104 can adsorb the pre-cooked food, ensuring the stability of the pre-cooked food on the conveyor belt assembly 103. The airflow flows through the interior of the guide shroud 102 at one end of the rotating tube 107 and then converges into the interior of the main stream pipe 105 through the diversion pipe 106. This allows the adsorption hole 104 on the conveyor belt assembly 103 to position the pre-cooked food, preventing the problem of position deviation caused by the unstable rotation speed of the conveyor belt assembly 103.

[0024] In Example 2, based on Example 1, four conveying vertical rods 2 are installed on the top of the conveying positioning guard plate 1, and four drive cylinders are also installed on the top of the conveying positioning guard plate 1. Two guide rails 201 are installed on the output ends of the four drive cylinders; two guide rods 202 are slidably installed on the inner side of the guide rails 201; a movable carrier plate 203 is installed between the two guide rods 202; the two ends of the two guide rails 201 are slidably installed on the outer side of the conveying vertical rods 2, and a connecting plate is installed between one end of the two guide rails 201. A drive cylinder is installed on the connecting plate, and the output end of the drive cylinder is connected to the side of one guide rod 202. The movable carrier plate 203 is connected to the surface; multiple guide grooves 204 are provided on the movable carrier plate 203, and a support plate 205 is installed on the top of the movable carrier plate 203; a rotating plate 206 is rotatably installed on the support plate 205; a guide slide plate 207 is slidably installed inside the guide grooves 204; a connecting rod 208 is rotatably installed at the middle position of the top of the guide slide plate 207; a drive cylinder is installed at the middle position of the rotating plate 206, and the output end of the drive cylinder is connected to the middle position of the connecting rod 208. When packing bagged pre-prepared vegetables, the displacement sensors on the spacing adjustment plate 3 and the shape adjustment panel 303 monitor the multiple... The pre-packaged vegetables are positioned at the designated location. A drive cylinder at the top of the positioning guard plate 1 moves the guide rail 201 downwards along the conveyor vertical rod 2, positioning the spacing adjustment plate 3 on one side of the pre-packaged vegetables. The output end of the drive cylinder on the rotating plate 206 moves the connecting rod 208. Both ends of the connecting rod 208 rotate at the top of the guide slide plate 207, causing the guide slide plate 207 to move along the guide groove 204. This causes the rotating plate 206 to rotate at the top of the support plate 205. Multiple guide slide plates 207 move, thereby moving the spacing adjustment plate 3 and pushing the pre-packaged vegetables, ensuring that multiple pre-packaged vegetables are positioned in the same location. As the guide slide plate 207 moves, the drive cylinders on the connecting plates at one end of the two guide rails 201 drive a guide rod 202 to move along the inner side of the guide rail 201. The guide rod 202 drives the movable carrier plate 203 to move synchronously with the conveyor belt assembly 103. When the conveyor belt assembly 103 is conveying pre-prepared food, the bottom of the guide slide plate 207 drives multiple spacing adjustment plates 3 to adjust the positions of multiple pre-prepared food items. This allows the conveyor belt assembly 103 to adjust the spacing during rapid movement, enabling the pre-prepared food to move efficiently with the conveyor belt assembly 103 and improving the efficiency of pre-prepared food packaging.

[0025] In Example 3, based on Example 1, a spacing adjustment plate 3 is installed at the bottom of the guide slide 207; a displacement sensor is installed at the bottom of the spacing adjustment plate 3; a guide vertical groove 301 is provided on the side of the spacing adjustment plate 3; a drive cylinder is installed on one side of the spacing adjustment plate 3; a traction plate 302 is installed on the output end of the drive cylinder; a shape adjustment panel 303 is installed on the side end of the traction plate 302 through the guide vertical groove 301; a displacement sensor and a vision sensor are installed on the outside of the shape adjustment panel 303; the shape adjustment panel 303 is located on the other side of the spacing adjustment plate 3; a positioning groove 304 is provided on the top side of the shape adjustment panel 303; multiple smoothing guide wheels 305 are rotatably installed on the shape adjustment panel 303; the side ends of the smoothing guide wheels 305 are connected by a chain assembly; a drive motor is installed inside the positioning groove 304; the output end of the drive motor is connected to the chain assembly on the side end of the smoothing guide wheel 305; when bagging... When pre-prepared vegetables are being packaged, when the spacing adjustment plate 3 is on one side of the pre-prepared vegetables, the drive cylinder on one side of the spacing adjustment plate 3 drives the traction plate 302 to move up and down along the guide vertical groove 301. The traction plate 302 drives the shape adjustment panel 303 to be above the pre-prepared vegetables. The vision sensor on the shape adjustment panel 303 detects the shape of the bagged pre-prepared vegetables. The output end of the servo motor inside the positioning groove 304 drives multiple smoothing guide wheels 305 to rotate simultaneously through the chain assembly. The outer side of the smoothing guide wheels 305 is made of rubber, which increases the contact force with the pre-prepared vegetable packaging bag. After the smoothing guide wheels 305 rotate, they can make the bagged pre-prepared vegetables flat. This allows the bagged pre-prepared vegetables to move flat on the conveyor belt assembly 103, reducing the need for workers to adjust the shape of the pre-prepared vegetables later. This allows the conveyor belt assembly 103 to quickly transport the pre-prepared vegetables for packaging, improving the efficiency of pre-prepared vegetable packaging.

[0026] The working principle of this embodiment: The insert plate 1010 is inserted into the adjustment hole 109 through the slot on one side of the conveyor positioning guard plate 1, which drives the rotating tube 107 to rotate in the conveyor belt assembly 103. The position of the rotating tube 107 is adjusted at intervals so that the guide groove 108 is connected to the adsorption hole 104. After the rotation, the guide grooves 108 on the multiple rotating tubes 107 are alternately distributed in a state of communication with the multiple adsorption holes 104. The adsorption holes 104 for adsorbing the pre-cooked food are distributed at the same interval. The pre-cooked food is placed on the conveyor belt assembly 103, and at the same time, the conveyor positioning guard plate 1... One side of the drive pump operates, and the external airflow flows through the adsorption hole 104 and the guide groove 108 into the rotating tube 107, then through the guide cover 102 into the diversion pipe 106 and converges into the main stream pipe 105. The adsorption hole 104 adsorbs and positions the pre-prepared food. The displacement sensors on the spacing adjustment plate 3 and the shape adjustment panel 303 detect the position of multiple bagged pre-prepared food items on the conveyor belt assembly 103. The drive cylinder at the top of the conveyor positioning guard plate 1 drives the guide slide rail 201 to move downward along the conveyor vertical rod 2. The spacing adjustment plate 3 is placed on the pre-prepared food item. On one side of the vegetable, the output end of the drive cylinder on the rotating plate 206 drives the connecting rod 208 to move, thereby driving the guide slide plate 207 to move along the guide groove 204. After multiple guide slide plates 207 move, they drive the spacing adjustment plate 3 to push the pre-prepared vegetables to move. The pre-prepared vegetables are at the same spacing. The drive cylinder on one side of the spacing adjustment plate 3 drives the traction plate 302 to move up and down along the guide vertical groove 301. The vision sensor on the shape adjustment panel 303 detects the shape of the bagged pre-prepared vegetables. The output end of the servo motor inside the positioning groove 304 is connected to... The chain assembly drives multiple smoothing guide wheels 305 to rotate simultaneously. After the smoothing guide wheels 305 rotate, they can keep the bagged pre-prepared vegetables in a flat state. While the guide slide plate 207 is moving, the drive cylinder on the connecting plate at one end of the two guide slide rails 201 drives a guide slide rod 202 to move along the inner side of the guide slide rail 201. The guide slide rod 202 drives the movable carrier plate 203 to move synchronously with the conveyor belt assembly 103. During the process of conveying the pre-prepared vegetables, the conveyor belt assembly 103 completes the adjustment of the spacing and shape, improving the efficiency of pre-prepared vegetable packaging.

[0027] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0028] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0029] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A fixed-distance conveying device for bagged pre-prepared food packaging, comprising: A conveying positioning guard plate (1) is provided, with a control operation box installed on its outer side, support legs installed on its bottom, a drive motor installed at one end of the conveying positioning guard plate (1), and a drive assembly installed on the output end of the drive motor, the drive assembly being located inside the conveying positioning guard plate (1); characterized in that four conveying vertical rods (2) are installed on the top of the conveying positioning guard plate (1), and four drive cylinders are also installed on the top of the conveying positioning guard plate (1), with two guide rails (201) installed on the output end of the four drive cylinders; two guide rods (202) are slidably installed on the inner side of the guide rails (201); between the two guide rods (202) A movable carrier plate (203) is installed; the two ends of the two guide rails (201) are slidably installed on the outside of the conveying vertical rod (2), and a connecting plate is installed between one end of the two guide rails (201). A drive cylinder is installed on the connecting plate, and the output end of the drive cylinder is connected to the side of a guide rail (202); the movable carrier plate (203) is provided with multiple guide grooves (204), and a support plate (205) is installed on the top of the movable carrier plate (203); a rotating plate (206) is rotatably installed on the support plate (205); a guide slide plate (207) is slidably installed inside the guide groove (204); and a spacing adjustment plate (3) is installed at the bottom of the guide slide plate (207).

2. The fixed-distance conveying device for bagged pre-prepared vegetable packaging according to claim 1, characterized in that, Positioning rings (101) and flow guides (102) are respectively installed on the inner sides of the conveying positioning guard plate (1); a conveyor belt assembly (103) is rotatably installed on the drive assembly inside the conveying positioning guard plate (1).

3. A fixed-distance conveying device for bagged pre-prepared vegetable packaging according to claim 2, characterized in that, The outer side of the conveyor belt assembly (103) is provided with a plurality of evenly distributed adsorption holes (104), and the two sides of the conveyor belt assembly (103) are respectively provided with airflow grooves and operation grooves; the inner end of the positioning ring (101) is installed in the operation groove on one side of the conveyor belt assembly (103).

4. A fixed-distance conveying device for bagged pre-prepared vegetable packaging according to claim 3, characterized in that, The inner end of the flow guide (102) is installed in the airflow groove on the other side of the conveyor belt assembly (103); a drive pump is installed on the other side of the conveyor positioning guard plate (1), and a main flow pipe (105) is installed on the output end of the drive pump.

5. A fixed-distance conveying device for bagged pre-prepared vegetables according to claim 4, characterized in that, The main pipe (105) is connected to a branch pipe (106) at one side; the branch pipe (106) is connected to the other side of the conveyor positioning guard plate (1) and the guide shroud (102) at one side; the conveyor belt assembly (103) has multiple evenly distributed rotating pipes (107) rotatably installed inside.

6. A fixed-distance conveying device for bagged pre-prepared vegetable packaging according to claim 5, characterized in that, One end of the rotating tube (107) is located in the airflow groove on the other side of the conveyor belt assembly (103). The inner side of one end of the rotating tube (107) is connected to the interior of the guide shroud (102). The outer side of the rotating tube (107) is provided with a guide groove (108). The other end of the rotating tube (107) is located in the operation groove on one side of the conveyor belt assembly (103). The other end of the rotating tube (107) is provided with an adjustment socket (109). The guide groove (108) can be connected to the adsorption hole (104).

7. A fixed-distance conveying device for bagged pre-prepared vegetable packaging according to claim 6, characterized in that, The conveying positioning guard plate (1) has a slot on one side, and a traction rope is installed on the slot. The side end of the traction rope is connected to a plug plate (1010). The side end of the plug plate (1010) is inserted into the adjustment hole (109).

8. A fixed-distance conveying device for bagged pre-prepared vegetable packaging according to claim 1, characterized in that, A connecting rod (208) is rotatably mounted at the middle position of the top of the guide slide plate (207); a drive cylinder is mounted at the middle position of the rotating plate (206), and the output end of the drive cylinder is connected to the middle position of the connecting rod (208).

9. A fixed-distance conveying device for bagged pre-prepared vegetable packaging according to claim 1, characterized in that, A displacement sensor is installed at the bottom of the spacing adjustment plate (3), and a guide vertical groove (301) is provided on the side of the spacing adjustment plate (3). A drive cylinder is installed on one side of the spacing adjustment plate (3), and a traction plate (302) is installed on the output end of the drive cylinder. A shape adjustment panel (303) is installed on the side end of the traction plate (302) through the guide vertical groove (301).

10. A fixed-distance conveying device for bagged pre-prepared vegetable packaging according to claim 9, characterized in that, The shape adjustment panel (303) is equipped with a displacement sensor and a vision sensor on its outer side. The shape adjustment panel (303) is located on the other side of the spacing adjustment plate (3). A positioning groove (304) is provided on one side of the top of the shape adjustment panel (303). Multiple smoothing guide wheels (305) are rotatably installed on the shape adjustment panel (303). The side ends of the smoothing guide wheels (305) are connected by a chain assembly. A drive motor is installed inside the positioning groove (304). The output end of the drive motor is connected to the chain assembly on the side end of the smoothing guide wheel (305).

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