Wrapping machine

Abstract

The present invention provides a wrapping machine, comprising a turntable and a fixed base. The wrapping machine is provided with a film-clamping and film-pulling mechanism, the film-clamping and film-pulling mechanism being movably mounted on the turntable and equipped with a drive motor, the drive motor being configured to drive the film-clamping and film-pulling mechanism to perform a film retraction motion. The film-clamping and film-pulling mechanism is further provided with a film-cutting mechanism, which is located between the clamping working component of the film-clamping and film-pulling mechanism and the boundary of the placement area of the item to be wrapped, the film-cutting mechanism being configured to reduce the connection strength of the film so that the film can be torn off. In the present invention, the film-clamping and film-pulling mechanism is arranged on the turntable, and the movement stroke of the mechanism is short. Film tearing is achieved by a retraction motion, which can be driven by a motor with high operating efficiency, thereby facilitating full electrification of the wrapping machine provided by the present invention.

Description

Technical field

[0001] The present invention relates to a wrapping machine that performs film wrapping by rotating the item to be wrapped on a turntable.Background

[0002] For a wrapping machine that performs film wrapping by rotating the item to be wrapped on a turntable, a film-clamping mechanism with a fixed position is provided on the turntable, and a swinging thermal film-cutting mechanism is provided on a fixed base. When the wrapping operation is completed, the thermal film-cutting mechanism needs to be driven to swing to the rear of the film-clamping mechanism to perform thermal cutting of the film. The swing stroke of the thermal film-cutting mechanism is relatively large, and an additional swing action is required after reaching the target position. It is more suitable to use a cylinder for actuation. Thus, the entire wrapping machine requires an air supply through pneumatic tubing. In some specific workshops where there is no air source or where the use of air sources is prohibited (for example, because air sources have certain contaminating properties and are not allowed in some specific workshops), these actions are difficult to implement.

[0003] With the development of the battery industry and product development, there has been a demand for fully electric wrapping machines. However, in the conventional combination structure of the film-clamping mechanism and the thermal film-cutting mechanism, the stroke of the thermal film-cutting components is large, making it difficult to achieve fast film cutting through motor-driven actuation.Summary

[0004] The objective of the present invention is to provide a wrapping machine that avoids the use of an air source, thereby facilitating the realization of full electrification for the wrapping machine of the present invention. To achieve this objective, the invention adopts the following technical solution: A wrapping machine, comprising a turntable and a fixed base, characterized in that the wrapping machine is provided with a film-clamping and film-pulling mechanism, the film-clamping and film-pulling mechanism being movably mounted on the turntable and equipped with a drive motor, the drive motor being configured to drive the film-clamping and film-pulling mechanism to perform a film retraction motion; the film-clamping and film-pulling mechanism is further provided with a film-cutting mechanism, which is located between the clamping working component of the film-clamping and film-pulling mechanism and the boundary of the placement area of the item to be wrapped, the film-cutting mechanism being configured to reduce the connection strength of the film such that the film can be torn off.

[0005] On the basis of the above technical solution, the present invention may further adopt the following additional technical solutions, or combinations thereof: The film-clamping and film-pulling mechanism comprises a mounting base, the mounting base being rotatably connected to the turntable, the drive motor rotating together with the mounting base along with the turntable, the drive motor being disposed on the mounting base and configured to drive the mounting base to rotate relative to the turntable, a movable film-clamping working component being mounted on the mounting base.

[0006] The mounting base is provided with traveling support rollers, the traveling support rollers being connected to the drive motor and configured to be driven to rotate, rolling and traveling along a circular trajectory centered on the rotational center of the mounting base.

[0007] The film-clamping and film-pulling mechanism comprises a mounting base, the mounting base being movably mounted on the turntable, the drive motor being disposed on the mounting base and configured to drive the mounting base to move forward and backward relative to the turntable, the drive motor rotating together with the mounting base along with the turntable, tracks being installed on both the turntable and the fixed base, the track on the fixed base being aligned and matched with the track on the turntable, such that the tracks installed on the turntable and the fixed base are connectable when the turntable is in its original position, allowing the mounting base to move in the film-pulling direction and return to the turntable, a film-clamping working component being mounted on the mounting base.

[0008] The film-clamping and film-pulling mechanism comprises a mounting base, the mounting base being provided with traveling support rollers, the rollers being connected to the drive motor and configured to be driven to rotate and roll along the sliding track.

[0009] The film-clamping and film-pulling mechanism is provided with a positioning structure for positioning the film-clamping and film-pulling mechanism when it rotates relative to the turntable back to the initial position on the turntable.

[0010] The positioning structure comprises an electromagnet and a fixed plate magnetically attracted by the electromagnet, as well as a motion-limiting structure of the film-clamping and film-pulling mechanism fixed on the turntable.

[0011] The film-cutting mechanism is fixed on the film-clamping working component and moves together with the film-clamping working component.

[0012] The film-cutting mechanism adopts a toothed blade edge, and during film cutting, multiple teeth on the toothed blade edge are used to puncture or cut the lower part of the film.

[0013] The film-clamping working component comprises a left clamping arm and a right clamping arm, the film-cutting mechanism comprises toothed blade slots, the toothed blade slots being respectively mounted on the left clamping arm and the right clamping arm, the toothed blade being insertable into the blade slots when the film-clamping working component is closed, the toothed blade adopting a toothed cutting edge, and during film cutting, multiple teeth on the toothed cutting edge are used to puncture or cut the lower part of the film.

[0014] The top surface of the turntable and the top surface of the fixed base are connected and lie on the same horizontal plane.

[0015] By adopting the technical solution of the present invention, it is possible to omit the swinging thermal film-cutting mechanism on the fixed base, and instead provide the film-clamping and film-pulling mechanism on the turntable; the film-clamping and film-pulling mechanism has a short stroke, and film cutting can be achieved by a film retraction action, which can be driven by a motor and offers high operational efficiency, thereby facilitating the realization of full electrification of the wrapping machine of the present invention.Brief description of the drawings

[0016] Fig. 1 is a schematic diagram of Embodiment 1 of the present invention. Figs. 2 and 3 are top views of Embodiment 1 of the present invention, respectively showing the structural states of the film-clamping and film-pulling mechanism in the initial position and in the film-pulling position. Fig. 4 is an exploded view of the film-clamping and film-pulling mechanism in Embodiment 1. Figs. 5 and 6 are schematic diagrams of Embodiment 2 of the present invention, respectively showing the structural states of the film-clamping and film-pulling mechanism in the initial position and in the film-pulling position. Figs. 7 and 8 are exploded views of the film-clamping and film-pulling mechanism in Embodiment 2. Figs. 9 and 10 are, respectively, a schematic diagram of the film-clamping and film-pulling mechanism and an exploded view of the positioning structure in Embodiment 3. Detailed description

[0017] Referring to the drawings, the wrapping machine according to the present invention is a wrapping machine that performs film wrapping by rotating the item 400 to be wrapped on a turntable. The wrapping machine comprises a turntable 100 and a fixed base 200, a vertical column 300 is provided on the fixed base, and the film roll rack of the wrapping machine is connected to a lifting mechanism within the vertical column 300.

[0018] The wrapping machine of the present invention is provided with a film-clamping and film-pulling mechanism, which is disposed on the turntable 100 and rotates together with the turntable 100 during the wrapping operation. The film-clamping and film-pulling mechanism is movably mounted on the turntable 100 and is equipped with a drive motor, which enables the film-clamping and film-pulling mechanism to perform a film retraction motion; the film-clamping and film-pulling mechanism is further provided with a film-cutting mechanism, which is located between the clamping working component of the film-clamping and film-pulling mechanism and the boundary of the placement area of the item to be wrapped (the item to be wrapped). When the film-clamping and film-pulling mechanism is closed to clamp the film, the film-cutting mechanism enters its working state, reducing the connection strength of the film so that it can be torn off; when the film-clamping and film-pulling mechanism is opened, the film-cutting mechanism also opens.

[0019] The film-clamping and film-pulling mechanism is movable so as to achieve film retraction and reset. The movement of the film-clamping and film-pulling mechanism may be rotational, with the rotation angle only needing to be sufficient for tearing the film in front of the item along the cutting edge. The rotation angle is small, making it suitable for electric drive. Referring to Embodiment 1 shown in Figs. 1 to 4, this illustrates such a rotational film-pulling implementation. The film-clamping and film-pulling mechanism comprises a mounting base 11, the mounting base 11 being rotatably connected to the turntable 100, and a drive motor 12 being disposed on the mounting base 11. The drive motor 12 rotates together with the mounting base 11 along with the turntable 100 and is capable of driving the mounting base 11 to rotate relative to the turntable 100. A movable film-clamping working component is mounted on the mounting base 11. Reference numeral 111 indicates the mounting base shaft fixed to the turntable 100, and reference numeral 112 indicates the bearing seat mounted on the mounting base 11.

[0020] The mounting base is provided with a traveling support roller 13, the traveling roller 13 serving as a driving wheel and being connected to the drive motor 12 via a radial shaft 14, such that it can be driven to rotate and roll along a circular trajectory centered on the rotational center of the mounting base, i.e., the shaft 111. An auxiliary support traveling driven roller 131 may be provided on the mounting base 11. All of the above rollers are arranged on the upper side of the mounting base 11, and openings are formed in the mounting base 11 such that only the bottom edges of the rollers protrude downward from the mounting base 11. Only the bottom edges are located below the mounting base 11 and are in contact with the turntable 100 (the fixed base 200), thereby reducing the height of the mounting base 11.

[0021] In the film-clamping and film-pulling mechanism, the rotation angle of the mounting base 11, i.e., the displacement distance of the movable film-clamping working component, can be controlled by the number of rotation turns of the drive motor 12, and the current position can be maintained by stopping the operation of the drive motor 12. Preferably, the film-clamping and film-pulling mechanism may be provided with an additional positioning structure for positioning it when it rotates back to the initial movement position on the turntable 100 (see Fig. 2). The positioning structure comprises an electromagnet 15 and a fixed plate located on the turntable and magnetically attracted by the electromagnet (either on the turntable or, as in this embodiment, the utilizing the side surface of the motion-limiting structure 16), as well as a motion-limiting structure 16 of the film-clamping and film-pulling mechanism fixed on the turntable 100. An inductive switch 17 may also be provided on the mounting base 11, which can be used to control the activation of the electromagnet 15. When the rotation returns to the target position, the inductive switch 17 detects the matching component and activates the electromagnet. The rotational stroke of the mounting base 11 in the film-retraction direction may be controlled either by the number of rotation turns of the drive motor 12, or by the inductive switch 17 in coordination with a matching component on the fixed base 200, or by limiting components for restriction. Once the inductive switch 17 detects the target position, it sends a signal, and the drive motor 12 stops operating. When the film-clamping and film-pulling mechanism rotates back to the initial position, it is fully located on the turntable 100. When it rotates to the position in the film-retraction direction (see Fig. 3), according to the set film-pulling distance, the film-clamping and film-pulling mechanism may still be entirely on the turntable 100, or partially located above the fixed base 200.

[0022] The operation of the film-cutting mechanism may be driven by a separate drive motor. Preferably, in this embodiment, it is fixed on the movable film-clamping working component, corresponding to the lower part of the film. The film-cutting mechanism moves together with the movable film-clamping working component, thereby simplifying the structure and allowing for an automatic and complete fit with the film-clamping working component.

[0023] The movable film-clamping working component 18 of the film-clamping and film-pulling mechanism comprises a left clamping arm 181 and a right clamping arm 182. The film-cutting mechanism comprises a toothed blade 183 and blade slot 184. The toothed blade 183 and blade slot 184 are respectively mounted on the left clamping arm 181 and the right clamping arm 182. The toothed blade 183 is insertable into the blade slot 184 when the film-clamping working component is closed. The toothed blade 183 adopts a toothed cutting edge 185, and during film cutting, multiple teeth on the toothed cutting edge are used to puncture or cut the lower part of the film. The punctured part of the film may form a perforated line or a directly cut elongated opening as a tear line, allowing the film-clamping and film-pulling mechanism to pull back along the tear line and tear the film.

[0024] The top surface of the turntable 100 and the top surface of the fixed base 200 may both be provided with (or one of them may be provided with) a spacer plate so as to align the top surfaces of the turntable 100 and the fixed base 200 on the same horizontal plane (in this embodiment, a spacer plate 201 is provided on the top surface of the fixed base 200).

[0025] The film-clamping and film-pulling mechanism is provided with a clamping drive motor 186. The clamping drive motor drives the left clamping arm 181 and the right clamping arm 182 to rotate synchronously in opposite directions through a gear transmission mechanism, wherein each of the rotation centers of the left clamping arm 181 and the right clamping arm 182 is provided with a gear, the two gears are in meshing connection, and one of the gears is connected to the drive motor 186 and serves as the driving gear.

[0026] The film-clamping and film-pulling mechanism operates using a battery 19 as a power source. The main controller of the wrapping machine can control the operation of each drive motor and the electromagnet 15 through a wireless communication module 10, and is connected to the inductive switch 17. Without the use of an air source and without providing a swinging thermal film-cutting mechanism, the wrapping operation of the wrapping machine is realized, thereby achieving full electrification of the wrapping machine.

[0027] In the above preferred embodiment, before operation begins, all components on the mounting base 11 are positioned on the turntable 100 by the cooperation of the electromagnet 15 and the limiting structure 16. When the item placed on the turntable is ready to be wrapped, the film head on the film rack is clamped by the film-clamping and film-pulling mechanism. Upon starting the wrapping machine, the turntable 100 is driven to rotate, and the film is wrapped onto the item. After the film is wound, the film-clamping and film-pulling mechanism releases the film head. As the film rack moves up and down and the turntable 100 rotates round by round, the film is wrapped around the surface of the item.

[0028] When the wrapping process is completed and the turntable 100 rotates back such that the film-clamping and film-pulling mechanism is located in front of the vertical column 300, the turntable 100 stops. The clamping drive motor 186 is actuated, and the movable film-clamping working component 18 clamps the film; at the same time, the film-cutting mechanism closes and punctures the film. Under the drive of the drive motor 12, the roller 13 rolls, and the mounting base 11 rotates around the shaft 111 in the film-retraction direction, pulling and tearing the film. The film head remains held at the film-clamping and film-pulling mechanism. The drive motor 12 then operates in reverse, and the mounting base 11 returns to the initial position. The electromagnet is activated to position the film-clamping and film-pulling mechanism, ready for the next item to be wrapped.

[0029] The movement of the film-clamping and film-pulling mechanism may also be of a front- and-back sliding type, and the moving stroke only needs to be sufficient to allow the film to be torn along the cut, with a short moving distance, making it suitable for electric drive. Referring to Embodiment 2 shown in Figs. 5 to 8, this illustrates such a sliding-type film-pulling implementation. The film-clamping and film-pulling mechanism comprises a mounting base 21, the mounting base 21 being movably mounted on the turntable 100. A drive motor 22 is provided on the mounting base 21 and is configured to drive the mounting base 21 to move forward and backward relative to the turntable 100. The drive motor 22 rotates together with the mounting base 21 along with the turntable 100. Tracks are installed on both the turntable 100 and the fixed base 200. The two sides of the mounting base 21 may directly slide along tracks 102 and 202, or sliding components such as sliders may be installed to slide along tracks 102 and 202. The track 202 on the fixed base is aligned and matched with the track 102 on the turntable such that the tracks 102 and 202 on the turntable 100 and the fixed base 200 are connectable when the turntable 100 is in the original position. The mounting base 21 can then move in the film-retraction direction and return onto the turntable 100. A movable film-clamping working component 18 is mounted on the mounting base 21.

[0030] The mounting base 21 is provided with traveling support rollers 23. The traveling support rollers 23 serve as driving wheels and are connected to the drive motor 22 via a drive shaft 24, such that they can be driven to rotate. The traveling support rollers 23 are provided on both the left and right sides of the mounting base 21, and roll and travel along the direction of the tracks 102 and 202 on the top surfaces of the turntable 100 and the fixed base 200. An auxiliary support traveling driven roller 231 may be provided on the mounting base 21. All of the above rollers are disposed on the upper side of the mounting base 21, and openings are formed in the mounting base 21 such that only the bottom edges of the rollers protrude downward from the mounting base 21. Only the bottom edges are located below the mounting base 21 and come into contact with the turntable 100 (or the fixed base 200), thereby reducing the height of the mounting base 21.

[0031] In the film-clamping and film-pulling mechanism, the displacement stroke of the mounting base 21, i.e., the displacement distance of the movable film-clamping working component, can be controlled by the number of rotation turns of the drive motor 22, and the current position can be maintained by stopping the operation of the drive motor 22. Preferably, the film-clamping and film-pulling mechanism may be provided with an additional positioning structure for positioning it when it returns to the initial movement position on the turntable 100 (see Fig. 5). In this embodiment, the positioning structure may adopt a braking mechanism, which comprises a braking electric drive mechanism 251, and a rotating friction block 252 driven by the braking electric drive mechanism 251. Corresponding fixed plates 253 and 254 are provided on the surfaces of the turntable 100 and the fixed base 200, respectively, to cooperate with the rotating friction block 252. The rotating friction block 252 may be coated with a friction material or a flexible material. A motion-limiting structure 26 of the film-clamping and film-pulling mechanism may be provided on the turntable 100. The braking electric drive mechanism 251 may adopt an electromagnetic suction cylinder, which is connected to the rotating friction block 252 via a linkage mechanism. When powered on, the suction cylinder holds, causing the braking friction block 252 to rotate downward to engage with the fixed plate 253 or 254 for braking. When the power is off, the suction cylinder pops out, causing the braking friction block 252 to rotate upward and disengage from the fixed plate, thereby releasing the mechanism. An inductive switch 27 may also be provided on the mounting base 21 to control the activation of the braking electric drive mechanism 251. When the mounting base returns to the correct position, the inductive switch 27 detects a matching component on the turntable (which may be a portion of the fixed plate 253) and activates the braking electric drive mechanism 251.

[0032] The movement stroke of the mounting base 21 in the film-retraction direction may be controlled by the number of rotation turns of the drive motor 22, or may alternatively be controlled through the inductive switch 27 in coordination with a matching component on the fixed base 200 (which may be a portion of the fixed plate 254). A limiting structure similar to the motion-limiting structure 26 may also be provided on the fixed base 200.

[0033] When the inductive switch 27 detects the target position, it sends a signal, and the drive motor 22 stops operating. When the film-clamping and film-pulling mechanism returns to the initial position, it is entirely located on the turntable 100. When it reaches the end position in the film-retraction direction (see Fig. 6), the film-clamping and film-pulling mechanism may still be entirely on the turntable 100, or partially or entirely located above the fixed base 200, depending on the set film-pulling distance. The top surface of the turntable 100 and the top surface of the fixed base 200 may both be provided with a spacer plate (or only one of them may be provided with a spacer plate) to align the top surfaces of the turntable 100 and the fixed base 200 on the same horizontal plane (in this embodiment, a spacer plate 201 is provided on the top surface of the fixed base 200). In this embodiment, the structure of the film-cutting mechanism and the structure of the movable film-clamping working component are the same as those in Embodiment 1 shown in Figs. 1 to 4. The film-cutting mechanism is also the same as in Embodiment 1 and is mounted on the movable film-clamping working component. In Figs. 5 to 8, reference numerals identical to those in Figs. 1 to 4 represent the same elements. Among them, reference numeral 187 denotes the driving gear as described in this embodiment, and reference numeral 188 denotes the driven gear that meshes with it.

[0034] The film-clamping and film-pulling mechanism operates using a battery 29 as the power source. The main controller of the wrapping machine can control the operation of each drive motor and the braking electric drive mechanism 251 through a wireless communication module 20, and is connected to the inductive switch 27. Without the use of an air source and without providing a swinging thermal film-cutting mechanism, the wrapping operation of the wrapping machine is realized, thereby achieving full electrification of the wrapping machine.

[0035] In Embodiment 2, before operation begins, all components on the mounting base 21 are positioned on the turntable 100 through the cooperation of the braking mechanism and the limiting structure. When the item placed on the turntable is ready to be wrapped, the film head on the film rack is clamped by the film-clamping and film-pulling mechanism. Upon starting the wrapping machine, the turntable 100 is driven to rotate, and after the film is wound onto the item, the film-clamping and film-pulling mechanism opens to release the film head. As the film rack moves up and down and the turntable 100 rotates round by round, the film is wrapped around the surface of the item. When the wrapping process is completed and the turntable 100 rotates back such that the film-clamping and film-pulling mechanism is located in front of the vertical column 300 (i.e., the original position of the turntable), the sliding tracks 102 and 202 mounted on the turntable 100 and the fixed base 200 are connected. The clamping drive motor 186 is actuated, and the movable film-clamping working component 18 clamps the film. At the same time, the movable film-cutting mechanism also closes and punctures the film. Under the drive of the drive motor 22, the rollers 23 roll, and the mounting base 21 moves along the sliding tracks 102 and 202 toward the direction of the vertical column (i.e., the film-tearing direction), pulling and tearing the film. The film head remains held at the film-clamping and film-pulling mechanism. The drive motor 22 then operates in reverse, and the mounting base 21 returns to the initial position. The inductive switch detects the return position, the braking mechanism is activated, and the film-clamping and film-pulling mechanism is positioned again, ready for the next item to be wrapped.

[0036] Referring to Figs. 9 and 10, on the basis of Embodiment 2, a different electromagnetic positioning mechanism is adopted for positioning the film-clamping and film-pulling mechanism when it returns to the initial position. It may also be used to hold the position of the film-clamping and film-pulling mechanism when it reaches the film-retraction end position. The electromagnetic positioning mechanism comprises an electromagnet 35, which is fixed on the bottom surface of a mounting bracket 351 of the mounting base. When positioning by magnetic attraction to the turntable is needed, the electromagnet will pop out. In Figs. 9 and 10, reference numerals identical to those in Figs. 1 to 8 represent the same elements.

[0037] Unless otherwise specified, in the present invention, terms such as "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings, and are intended solely to facilitate the description of the present invention and to simplify the description, rather than to indicate or imply that the referenced devices or elements must have a particular orientation or be constructed and operated in a particular orientation. Therefore, the terms describing orientation or positional relationships in the present invention are used for illustrative purposes only and should not be construed as limiting the scope of the present patent. For those skilled in the art, the specific meanings of the above terms can be understood in conjunction with the drawings and in view of the specific context.

[0038] Unless explicitly specified or defined otherwise, terms such as "disposed," "clamped," and "connected" as used in the present invention shall be understood in a broad sense. For example, they may refer to fixed connections or detachable connections, or integrally formed connections; they may refer to direct connections or indirect connections through an intermediate medium; or they may refer to communication between internal components of two elements. Those skilled in the art can interpret the specific meanings of these terms in the context of the present invention and in view of specific circumstances. The above description is merely illustrative of specific embodiments of the present invention, and the structural features of the invention are not limited thereto. Any variations or modifications made by those skilled in the art within the scope of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A wrapping machine, comprising a turntable and a fixed base, characterized in that the wrapping machine is provided with a film-clamping and film-pulling mechanism, the film-clamping and film-pulling mechanism being movably mounted on the turntable and equipped with a drive motor, the drive motor being configured to drive the film-clamping and film-pulling mechanism to perform a film retraction motion; the film-clamping and film-pulling mechanism is further provided with a film-cutting mechanism, which is located between the clamping working component of the film-clamping and film-pulling mechanism and the boundary of the placement area of the item to be wrapped, the film-cutting mechanism being configured to reduce the connection strength of the film such that the film can be torn off.

2. The wrapping machine according to claim 1, characterized in that the film-clamping and film-pulling mechanism comprises a mounting base, the mounting base being rotatably connected to the turntable, the drive motor rotating together with the mounting base along with the turntable, the drive motor being disposed on the mounting base and configured to drive the mounting base to rotate relative to the turntable, and a movable film-clamping working component being mounted on the mounting base.

3. The wrapping machine according to claim 2, characterized in that the mounting base is provided with traveling support rollers, the traveling support rollers being connected to the drive motor and configured to be driven to rotate, rolling and traveling along a circular trajectory centered on the rotational center of the mounting base.

4. The wrapping machine according to claim 1, characterized in that the film-clamping and film-pulling mechanism comprises a mounting base, the mounting base being movably mounted on the turntable, the drive motor being disposed on the mounting base and configured to drive the mounting base to move forward and backward relative to the turntable, the drive motor rotating together with the mounting base along with the turntable; tracks are installed on both the turntable and the fixed base, the track on the fixed base being aligned and matched with the track on the turntable, such that the tracks installed on the turntable and the fixed base are connectable when the turntable is in its original position, allowing the mounting base to move in the film-pulling direction and return onto the turntable; a film-clamping working component is mounted on the mounting base.

5. The wrapping machine according to claim 4, characterized in that the film-clamping and film-pulling mechanism comprises a mounting base, the mounting base being provided with traveling support rollers, the rollers being connected to the drive motor and configured to be driven to rotate, and rolling and traveling along the sliding track.

6. The wrapping machine according to any one of claim 2, 3, 4, or 5, characterized in that the film-clamping and film-pulling mechanism is provided with a positioning structure for positioning the film-clamping and film-pulling mechanism when it rotates relative to the turntable back to the initial position on the turntable.

7. The wrapping machine according to claim 6, characterized in that the positioning structure comprises an electromagnet and a fixed plate that is magnetically attracted by the electromagnet, as well as a motion-limiting structure of the film-clamping and film-pulling mechanism fixed on the turntable.

8. The wrapping machine according to claim 1, characterized in that the film-cutting mechanism is fixed on the film-clamping working component and moves together with the film-clamping working component.

9. The wrapping machine according to claim 1, characterized in that the film-cutting mechanism adopts a toothed cutting edge, and during film cutting, multiple teeth on the toothed cutting edge are used to puncture or cut the lower part of the film.

10. The wrapping machine according to claim 8, characterized in that the film-clamping working component comprises a left clamping arm and a right clamping arm; the film-cutting mechanism comprises toothed blade slots, the toothed blade slots being respectively mounted on the left clamping arm and the right clamping arm, and the toothed blade being insertable into the blade slots when the film-clamping working component is closed; the toothed blade adopts a toothed cutting edge, and during film cutting, multiple teeth on the toothed cutting edge are used to puncture or cut the lower part of the film.

11. The wrapping machine according to claim 1, characterized in that the top surface of the turntable and the top surface of the fixed base are connected and lie on the same horizontal plane.

Images