Stretching film packaging machine special for pickles

Abstract

The invention discloses a pickle special stretch film packaging machine which comprises a conveying belt, a feeding roller, an air blowing mechanism, a hot pressing mechanism and a cutting mechanism, the conveying belt is used for conveying packaging boxes, the feeding roller is used for winding and storing stretch films, and the air blowing mechanism is used for blowing air to one end of each stretch film when the packaging boxes are conveyed to the position below the feeding roller; one end of the stretching film is attached to the side wall of the packaging box, meanwhile, in the process that the packaging box is conveyed by the conveying belt, the packaging box pulls out the stretching film on the feeding roller and wraps the opening in the top of the packaging box, and the hot-pressing mechanism can seal the stretching film wrapping the opening of the packaging box at the opening of the packaging box in a hot-pressing mode; and the cutting mechanism is used for cutting off the stretching film subjected to hot-pressing sealing for next packaging work, so that pickles can be automatically packaged, waste of manpower resources is avoided, the packaging speed is high, the packaging cost is reduced, the packaging time is shortened, the using length of the stretching film can be controlled, and the packaging efficiency is improved. And the problem that the stretching film is damaged in the packaging process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pickled vegetable packaging, and particularly to a special stretch film packaging machine for pickled vegetables. Background Art

[0002] Pickled vegetables are made from fresh vegetables. The vegetables are pickled into pickled vegetable blanks with salt, and then the excess brine (salt) in the pickled vegetable blanks is removed by pressing or soaking in clean water to reduce the salt content, so that the salt content of the pickled vegetable blanks is reduced. Then, different sauces (such as yellow sauce, sweet flour sauce, etc.) or soy sauce are used for pickling, so that the sugar, amino acids, aromatic fragrance, etc. in the sauce penetrate into the pickled vegetable blanks, becoming pickled vegetables with delicious taste, rich nutrition, appetizing effect and easy to preserve.

[0003] Currently, when stretch film packaging is performed on pickled vegetables in the market, usually the stretch film is manually pulled to cover the top of the packaging box for sealing. This pickled vegetable packaging method is prone to waste of human resources and has a slow packaging speed, thus increasing the packaging cost and time. Moreover, it is difficult to control the usage length of the stretch film during manual packaging, and the stretch film is easily damaged during the packaging process. Therefore, we propose a stretch film packaging machine for pickled vegetable packaging. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies, and propose a special stretch film packaging machine for pickled vegetables, so as to solve the technical problems in the prior art that when stretch film packaging is performed on pickled vegetables, usually the stretch film is manually pulled to cover the top of the packaging box for sealing. This pickled vegetable packaging method is prone to waste of human resources and has a slow packaging speed, thus increasing the packaging cost and time. Moreover, it is difficult to control the usage length of the stretch film during manual packaging, and the stretch film is easily damaged during the packaging process.

[0005] To achieve the above technical purpose, the technical solution of the present invention provides a special stretch film packaging machine for pickled vegetables, including: A conveyor belt for conveying the packaging box; A feeding roller for winding and storing the stretch film; A blowing mechanism for blowing air at one end of the stretch film when the packaging box is conveyed to the lower part of the feeding roller, so that one end of the stretch film adheres to the side wall of the packaging box. At the same time, during the process of the conveyor belt conveying the packaging box, the packaging box pulls out the stretch film on the feeding roller and wraps it around the opening of the packaging box; A hot pressing mechanism that can hot press and seal the stretch film wrapped around the opening of the packaging box at the opening of the packaging box; A cutting mechanism for cutting off the stretch film after hot pressing and sealing to perform the next packaging operation.

[0006] Further, the air blowing mechanism includes an inner air blowing pipe and an outer air blowing pipe movably sleeved on the inner air blowing pipe. One end of the inner air blowing pipe is closed, and the other end is open. The open end is connected to the air supply device. A plurality of inner air blowing holes are equidistantly arranged on the side wall of the inner air blowing pipe along its central axis direction. A plurality of outer air blowing holes are equidistantly arranged on the side wall of the outer air blowing pipe along its central axis direction. The outer air blowing pipe is connected to a first driving device for driving the outer air blowing pipe to rotate.

[0007] Further, the inner air blowing holes are arc-shaped structures with the central axis of the inner air blowing pipe as the center of the circle, the outer air blowing holes are circular structures, and the diameter of the outer air blowing holes is equal to the width of the inner air blowing holes.

[0008] Further, a sealing layer is provided between the inner air blowing pipe and the outer air blowing pipe.

[0009] Further, the first driving device includes a driven gear coaxially installed on the outer air blowing pipe. The driven gear meshes with a driving gear, and the driving gear is connected to a first driving motor for driving the driving gear to rotate.

[0010] Further, the conveyor belt includes a driving roller and a driven roller. A belt is wound around the driving roller and the driven roller. The driving roller is connected to a second driving device for driving the driving roller to rotate.

[0011] Further, a plurality of placement grooves for placing the packaging boxes are equidistantly arranged on the surface of the belt.

[0012] Further, the hot pressing mechanism includes a hot pressing head. The hot pressing head is connected to a third driving device for driving the hot pressing head to lift and lower.

[0013] Further, the cutting mechanism includes a cutting knife. The cutting knife is connected to a fourth driving device for driving the cutting knife to lift and lower.

[0014] Further, the stretch film wrapping machine further includes a guiding roller for guiding the stretch film pulled out by the feeding roller.

[0015] The beneficial effects of the present invention include: 1. The conveyor belt is used to convey the packaging boxes, the feeding roller is used to wind and store the stretch film. The air blowing mechanism is used to blow air at one end of the stretch film when the packaging box is conveyed to the lower part of the feeding roller, so that one end of the stretch film adheres to the side wall of the packaging box. At the same time, during the process of the conveyor belt conveying the packaging box, the packaging box pulls out the stretch film on the feeding roller and wraps it around the opening at the top of the packaging box. The hot pressing mechanism can hot press and seal the stretch film wrapped around the opening of the packaging box at the opening of the packaging box. The cutting mechanism is used to cut off the hot-pressed and sealed stretch film for the next packaging work. Therefore, the pickles can be automatically packaged, avoiding the waste of human resources, and the packaging speed is fast, thus reducing the packaging cost and time, and can control the use length of the stretch film, avoiding the problem of damage to the stretch film during the packaging process; 2. When the packaging box on the conveyor belt is conveyed below the feeding roller, the first driving device drives the inner blowing air pipe to rotate until the inner blowing air holes on the inner blowing air pipe are opposite to the outer blowing air holes on the outer blowing air pipe. The air supply device can introduce gas into the interior of the inner blowing air pipe. The gas inside the inner blowing air pipe can be blown out through the inner blowing air holes and the outer blowing air holes in sequence, so that one end of the stretch film adheres to the side wall of the packaging box. At the same time, the conveyor belt conveys the packaging box. During the conveyance of the packaging box, the packaging box pulls out the stretch film on the feeding roller and wraps it around the opening of the packaging box. When the stretch film is wrapped around the opening of the packaging box, the first driving device drives the inner blowing air pipe to rotate until the inner blowing air holes on the inner blowing air pipe are staggered from the outer blowing air holes on the outer blowing air pipe, so that the gas inside the inner blowing air pipe cannot be blown out through the inner blowing air holes and the outer blowing air holes, thereby avoiding the blown gas from blowing up one end of the cut stretch film and affecting the packaging of the next packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic structural view of a special stretch film packaging machine for pickles according to an embodiment of the present invention; Figure 2 FIG. is another state diagram of the special stretch film packaging machine for pickles according to an embodiment of the present invention; Figure 3 FIG. is a schematic structural view of the air blowing mechanism according to an embodiment of the present invention; Figure 4 FIG. is a schematic structural view of the inner blowing air pipe according to an embodiment of the present invention; Figure 5 FIG. is a partial cross-sectional view of the air blowing mechanism according to an embodiment of the present invention; Figure 6 FIG. is a schematic structural view of the hot pressing mechanism and the cutting mechanism according to an embodiment of the present invention; In the figure: 1. Conveyor belt; 11. Driving roller; 12. Driven roller; 13. Belt; 131. Placing groove; 14. Second driving device; 141. Driven wheel; 142. Synchronous belt; 143. Driving wheel; 144. Second driving motor; 131. Placing groove; 2. Feeding roller; 3. Air blowing mechanism; 31. Inner blowing air pipe; 311. Inner blowing air hole; 32. Outer blowing air pipe; 321. Outer blowing air hole; 33. First driving device; 331. Driven gear; 332. Driving gear; 333. First driving motor; 34. Sealing layer; 4. Hot pressing mechanism; 41. Hot pressing head, 42. Second driving device; 5. Cutting mechanism; 51. Cutting knife; 52. Third driving device; 6. Guide roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] An embodiment of the present invention provides a special stretch film packaging machine for pickled vegetables, as Figure 1-2 shown, which includes: a conveyor belt 1, a feeding roller 2, a blowing mechanism 3, a hot pressing mechanism 4 and a cutting mechanism 5. The conveyor belt 1 is used to convey the packaging box, the feeding roller 2 is used to wind and store the stretch film, the blowing mechanism 3 is used to blow air at one end of the stretch film when the packaging box is conveyed to the lower part of the feeding roller 2, so that one end of the stretch film adheres to the side wall of the packaging box. At the same time, during the process of the conveyor belt 1 conveying the packaging box, the packaging box pulls out the stretch film on the feeding roller 2 and wraps it around the opening at the top of the packaging box. The hot pressing mechanism 4 can hot press and seal the stretch film wrapped around the opening of the packaging box at the opening of the packaging box, and the cutting mechanism 5 is used to cut off the stretch film after hot pressing and sealing for the next packaging work.

[0019] In this embodiment, as Figure 3-5 shown, the blowing mechanism 3 includes an inner blowing pipe 31 and an outer blowing pipe 32 movably sleeved on the inner blowing pipe 31. One end of the inner blowing pipe 31 is closed and the other end is open, and the open end is connected to a gas supply device. A plurality of inner blowing holes 311 are equidistantly arranged on the side wall of the inner blowing pipe 31 along its central axis direction, and a plurality of outer blowing holes 321 are equidistantly arranged on the side wall of the outer blowing pipe 32 along its central axis direction. The outer blowing pipe 32 is connected to a first driving device 33 for driving the outer blowing pipe 32 to rotate. When the packaging box on the conveyor belt 1 is conveyed to the lower part of the feeding roller 2, the first driving device 33 drives the outer blowing pipe 32 to rotate until the outer blowing holes 321 on the outer blowing pipe 32 are opposite to the inner blowing holes 311 on the inner blowing pipe 31. The gas can be introduced into the interior of the inner blowing pipe 31 through the gas supply device, and the gas inside the inner blowing pipe 31 can be blown out through the inner blowing holes 311 and the outer blowing holes 321 in sequence, so that one end of the stretch film adheres to the side wall of the packaging box. At the same time, the conveyor belt 1 conveys the packaging box. During the process of conveying the packaging box, the packaging box pulls out the stretch film on the feeding roller 2 and wraps it around the opening of the packaging box. When the stretch film is wrapped around the opening of the packaging box, the first driving device 33 drives the outer blowing pipe 32 to rotate until the outer blowing holes 321 on the outer blowing pipe 32 are staggered with the inner blowing holes 311 on the inner blowing pipe 31, so that the gas inside the inner blowing pipe 31 cannot be blown out through the inner blowing holes 311 and the outer blowing holes 32, thereby avoiding the blown gas from blowing up one end of the cut stretch film and affecting the packaging of the next packaging box.

[0020] The blowing mechanism 3 of the present invention is not limited to the above structure. For example, in some other embodiments, the blowing mechanism 3 includes an inner blowing pipe 31 and an outer blowing pipe 32 movably sleeved on the inner blowing pipe 31. One end of the inner blowing pipe 31 is closed and the other end is open, and the open end is connected to a gas supply device. A plurality of inner blowing holes 311 are equidistantly arranged on the side wall of the inner blowing pipe 31 along its central axis direction, and a plurality of outer blowing holes 321 are equidistantly arranged on the side wall of the outer blowing pipe 32 along its central axis direction. The inner blowing pipe 31 is connected to a first driving device 33 for driving the inner blowing pipe 31 to rotate. When the packaging box on the conveyor belt 1 is conveyed below the feeding roller 2, the first driving device 33 drives the inner blowing pipe 31 to rotate until the inner blowing holes 311 on the inner blowing pipe 31 are opposite to the outer blowing holes 321 on the outer blowing pipe 32. The gas supply device can introduce gas into the interior of the inner blowing pipe 31, and the gas inside the inner blowing pipe 31 can be blown out through the inner blowing holes 311 and the outer blowing holes 321 in sequence, so that one end of the stretch film adheres to the side wall of the packaging box. At the same time, the conveyor belt 1 conveys the packaging box. During the conveyance of the packaging box, the packaging box pulls out the stretch film on the feeding roller 2 and wraps it around the opening of the packaging box. When the stretch film is wrapped around the opening of the packaging box, the first driving device 33 drives the inner blowing pipe 31 to rotate until the inner blowing holes 311 on the inner blowing pipe 31 are staggered from the outer blowing holes 321 on the outer blowing pipe 32, so that the gas inside the inner blowing pipe 31 cannot be blown out through the inner blowing holes 311 and the outer blowing holes 321, thereby avoiding the gas blown out from blowing up one end of the cut stretch film and affecting the packaging of the next packaging box.

[0021] It should be noted that the gas supply device can be a hot air blower. Through the hot air blower, hot air can be blown into the interior of the inner blowing pipe 32, and at the same time, the hot air can be blown out through the inner blowing holes 311 and the outer blowing holes 321 to heat one end of the stretch film, so that one end of the stretch film adheres more firmly to the side wall of the packaging box.

[0022] In this embodiment, the inner blowing holes 311 are arc-shaped structures with the central axis of the inner blowing pipe 31 as the center of the circle, and the outer blowing holes 321 are circular structures. The diameter of the outer blowing holes 321 is equal to the width of the inner blowing holes 311. When the packaging box just contacts one end of the stretch film, the outer blowing pipe 32 rotates until the outer blowing holes 321 on the outer blowing pipe 32 are opposite to one end of the inner blowing holes 311 on the inner blowing pipe 31. At this time, the angle between the direction of the gas blown out through the inner blowing holes 311 and the outer blowing holes 321 and the horizontal plane is the smallest. The gas blown out through the inner blowing holes 311 and the outer blowing holes 321 can blow one end of the stretch film to the side wall of the packaging box. When the outer blowing pipe 32 continues to rotate, the angle between the direction of the gas blown out through the inner blowing holes 311 and the outer blowing holes 321 and the horizontal plane gradually increases, so that the gas blown out through the inner blowing holes 311 and the outer blowing holes 321 can always face the side wall of the packaging box, thereby avoiding the one end of the stretch film from separating from the packaging box when the stretch film is pulled out from the feeding roller 2.

[0023] In some other embodiments, since the inner blowing air pipe 31 is connected to the first driving device 33 for driving the rotation of the inner blowing air pipe 31, the shape designs of the inner blowing air holes 311 and the outer blowing air holes 321 are changed. Specifically, the outer blowing air hole 321 is an arc-shaped structure centered on the central axis of the outer blowing air pipe 32, the inner blowing air hole 311 is a circular structure, and the diameter of the inner blowing air hole 311 is equal to the width of the outer blowing air hole 321. When the packaging box just contacts one end of the stretching film, the inner blowing air pipe 31 rotates until the inner blowing air hole 311 on the inner blowing air pipe 31 is opposite to one end of the outer blowing air hole 321 on the outer blowing air pipe 32. At this time, the included angle between the gas blowing direction through the inner blowing air hole 311 and the outer blowing air hole 321 and the horizontal plane is the smallest. The gas blown out through the inner blowing air hole 311 and the outer blowing air hole 321 can blow one end of the stretching film to the side wall of the packaging box. When the inner blowing air pipe 31 continues to rotate, the included angle between the gas blowing direction through the inner blowing air hole 311 and the outer blowing air hole 321 and the horizontal plane gradually increases, so that the gas blown out through the inner blowing air hole 311 and the outer blowing air hole 321 can always face the side wall of the packaging box, thereby avoiding the separation of one end of the stretching film from the packaging box when the stretching film is pulled out from the feeding roller 2.

[0024] In this embodiment, a sealing layer 34 is provided between the inner blowing air pipe 31 and the outer blowing air pipe 32. The sealing layer 34 is made of one of a silica gel layer or a rubber layer. The inner blowing air pipe 31 and the outer blowing air pipe 32 can be sealed through the sealing layer 34, thereby avoiding gas leakage. At the same time, the sealing layer 34 is fixed on the outer wall of the inner blowing air pipe 31 or the inner wall of the outer blowing air pipe 32. When the sealing layer 34 is fixed on the outer wall of the inner blowing air pipe 31, a through hole having the same size as the inner blowing air hole 311 is provided at a position of the sealing layer 34 opposite to the inner blowing air hole 311. When the sealing layer 34 is fixed on the inner wall of the outer blowing air pipe 32, a through hole having the same size as the outer blowing air hole 321 is provided at a position of the sealing layer 34 opposite to the outer blowing air hole 321.

[0025] In this embodiment, the first driving device 33 includes a driven gear 331 coaxially installed on the outer blowing air pipe 32. The driven gear 331 is engaged with a driving gear 332, and the driving gear 332 is connected to a first driving motor 333 for driving the rotation of the driving gear 332. The first driving motor 333 is one of an electric motor, a hydraulic motor or a pneumatic motor. The driving gear 332 can be driven to rotate through the first driving motor 333, and the driving gear 332 can drive the driven gear 331 to rotate, thereby driving the outer blowing air pipe 32 to rotate.

[0026] In this embodiment, the conveyor belt 1 includes an active roller 11 and a driven roller 12, and a belt 13 is wound around the active roller 11 and the driven roller 12. The active roller 11 is connected to a second driving device 14 for driving the active roller 11 to rotate. The active roller 11 can be driven to rotate by the second driving device 14, and the active roller 11 can drive the belt 13 to move to convey the packaging boxes. At the same time, a plurality of placement grooves 131 for placing the packaging boxes are equidistantly provided on the surface of the belt 13. The packaging boxes can be evenly placed on the conveyor belt 1 at equal intervals through the placement grooves 131 to facilitate the packaging of the packaging boxes.

[0027] In this embodiment, the second driving device 14 includes a driven wheel 141 connected to the active roller 11, the driven wheel 141 is connected to the active wheel 143 through a synchronous belt 142, the active wheel 143 is connected to a second driving motor 144 for driving the active wheel 143 to rotate, the second driving motor 144 adopts one of an electric motor, a hydraulic motor or a pneumatic motor, the active wheel 143 can be driven to rotate by the second driving motor 144, the active wheel 143 can drive the driven gear 141 to rotate through the synchronous belt 142, thereby driving the active roller 11 to rotate.

[0028] In this embodiment, Figure 6 As shown, the hot pressing mechanism 4 includes a hot pressing head 41, which is connected to a third driving device 42 for driving the hot pressing head 41 to rise and fall. The third driving device 42 is one of a cylinder, a hydraulic cylinder or an electric telescopic rod. The hot pressing head 41 can be driven to rise and fall by the third driving device 42 to hot-press and seal the stretch film at the top opening of the packaging box.

[0029] In this embodiment, the cutting mechanism 5 includes a cutting knife 51, the cutting knife 51 and a fourth driving device 52 for driving the cutting knife 51 to rise and fall. The fourth driving device 52 is one of a cylinder, a hydraulic cylinder or an electric telescopic rod. The fourth driving device 52 can drive the cutting knife 51 to rise and fall, cut off the stretch film after heat sealing, and carry out the next packaging work.

[0030] In this embodiment, the stretch film packaging machine also includes a guide roller 6 for guiding the stretch film pulled out by the feeding roller 2. More specifically, the guide roller 6 includes two rollers arranged opposite to each other, and a gap is left between the two rollers for the stretch film to pass through. The guide roller 6 can guide the stretch film when the packaging box pulls out the stretch film on the feeding roller 2.

[0031] Specific principle: when packaging a package box, the package box is placed on the conveyor belt 1. When the package box on the conveyor belt 1 is transported to the bottom of the feeding roller 2, the first driving device 33 drives the outer blowing pipe 32 to rotate until the outer blowing hole 321 on the outer blowing pipe 32 is opposite to the inner blowing hole 311 on the inner blowing pipe 31. The gas can be introduced into the inner blowing pipe 31 through the air supply device. The gas inside the inner blowing pipe 31 can be blown out through the inner blowing hole 311 and the outer blowing hole 321 in turn, so that one end of the stretch film is attached to the side wall of the package box. At the same time, the conveyor belt 1 continues to transport the package box. During the transportation of the package box, the package box pulls the stretch film on the feeding roller 2 out and covers the opening of the package box. When the stretch film covers After the opening of the packaging box is opened, the first driving device 33 drives the outer blowing tube 32 to rotate until the outer blowing hole 321 on the outer blowing tube 32 is staggered with the inner blowing hole 311 on the inner blowing tube 31, so that the gas inside the inner blowing tube 31 cannot be blown out through the inner blowing hole 311 and the outer blowing hole 32, thereby preventing the blown gas from blowing up one end of the cut stretch film and affecting the packaging of the next packaging box. When the packaging box with the stretch film wrapped at the opening is transported to the bottom of the hot pressing mechanism 4, the stretch film can be hot-pressed and sealed at the opening of the packaging box by the hot pressing mechanism 4. After the stretch film is hot-pressed and sealed at the opening of the packaging box, the stretch film after heat-pressing and sealing can be cut off by the cutting mechanism 5 for the next packaging work.

[0032] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A stretch film packaging machine for pickles, characterized in that: include: A conveyor belt (1), wherein the conveyor belt (1) is used to convey packaging boxes; A feeding roller (2), the feeding roller (2) being used for winding and storing the stretch film; An air blowing mechanism (3), the air blowing mechanism (3) being used to blow air toward one end of the stretch film when the packaging box is conveyed to below the feeding roller (2), so that the one end of the stretch film is attached to the side wall of the packaging box, and at the same time, when the packaging box is conveyed on the conveyor belt (1), the packaging box pulls out the stretch film on the feeding roller (2) and covers the opening of the packaging box; A heat pressing mechanism (3), wherein the heat pressing mechanism (3) can heat-press and seal the stretch film covering the opening of the packaging box at the opening of the packaging box; A cutting mechanism (4), wherein the cutting mechanism (4) is used to cut the stretch film after heat-pressing sealing so as to carry out the next packaging operation.

2. The stretch film packaging machine for pickles according to claim 1, characterized in that: The air blowing mechanism (3) comprises an inner air blowing pipe (31) and an outer air blowing pipe (32) movably sleeved on the inner air blowing pipe (31); one end of the inner air blowing pipe (31) is closed and the other end is open, and the open end is connected to an air supply device; a side wall of the inner air blowing pipe (31) is provided with a plurality of inner air blowing holes (311) at equal distances along the central axis direction thereof; a side wall of the outer air blowing pipe (32) is provided with a plurality of outer air blowing holes (321) at equal distances along the central axis direction thereof; and the outer air blowing pipe (32) is connected to a first driving device (33) for driving the outer air blowing pipe (32) to rotate.

3. The stretch film packaging machine for pickles according to claim 2, characterized in that: The inner air blowing hole (311) is an arc-shaped structure with the central axis of the inner air blowing tube (31) as the center of the circle, and the outer air blowing hole (321) is a circular structure. The diameter of the outer air blowing hole (321) is equal to the width of the inner air blowing hole (311).

4. The stretch film packaging machine for pickles according to claim 2, characterized in that: A sealing layer (34) is provided between the inner air blowing pipe (32) and the outer air blowing pipe (321).

5. The stretch film packaging machine for pickles according to claim 2, characterized in that: The first driving device (33) comprises a driven gear (331) coaxially mounted on the external air blowing pipe (32), the driven gear (331) meshing with a driving gear (332), and the driving gear (332) being connected to a first driving motor (333) for driving the driving gear (332) to rotate.

6. The stretch film packaging machine for pickles according to claim 1, characterized in that: The conveyor belt (1) comprises a driving roller (11) and a driven roller (12), a belt (13) being wound around the driving roller (11) and the driven roller (12), and the driving roller (11) is connected to a second driving device (14) for driving the driving roller (11) to rotate.

7. The stretch film packaging machine for pickles according to claim 6, characterized in that: The surface of the belt (13) is provided with a plurality of placement grooves (131) at equal distances for placing packaging boxes.

8. The stretch film packaging machine for pickles according to claim 1, characterized in that: The hot pressing mechanism (4) comprises a hot pressing head (41), and the hot pressing head (41) is connected to a third driving device (42) for driving the hot pressing head (41) to rise and fall.

9. The stretch film packaging machine for pickles according to claim 1, characterized in that: The cutting mechanism (5) comprises a cutting knife (51), the cutting knife (51) and a fourth driving device (52) for driving the cutting knife (51) to move up and down.

10. The stretch film packaging machine for pickles according to claim 1, characterized in that: The stretch film packaging machine further comprises a guide roller (6) for guiding the stretch film pulled out by the feed roller (2).

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