Film tail cutting, clamping and knotting mechanism after film winding of rotary table type winding machine

Abstract

The invention discloses a film tail cutting, clamping and knotting mechanism for a rotary table type winding machine after film winding, which comprises a rack, a main swing arm, a main swing arm driving cylinder, an auxiliary swing arm, an auxiliary swing arm driving cylinder, an electromagnetic valve group, a cutter assembly, a clamping plate assembly and a film blowing spray pipe, the main swing arm driving air cylinder drives the main swing arm to enable the main swing arm to be switched between the horizontal state and the vertical state. The bottom of the auxiliary swing arm is connected with the rack, and the auxiliary swing arm driving air cylinder drives the auxiliary swing arm to be switched between the horizontal state and the vertical state. After the auxiliary swing arm is vertical, a gap between a winding film and goods is pulled out, the clamping plate assembly pulls the film into a ball and clamps the film, the clamping jaw on the main swing arm clamps the film, the cutter assembly cuts off the film, and the clamping jaw on the main swing arm plugs the tail of the film into the gap to achieve the knotting effect. According to the implementation mode, the film tail is efficiently and stably wrapped in the wrapping film, high-temperature film breaking and film ironing are not needed, and influences on the environment and operators are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of a rotary table winding machine, in particular to a film tail cutting, clamping and knotting mechanism at the end of film winding of a rotary table winding machine. Background Art

[0002] The turntable wrapping machine is a device that pulls out the film from the wrapping film roll while rotating the goods so that the film wraps the goods. According to the way the film frame moves relative to the goods, the wrapping machine can be divided into cantilever wrapping machine, turntable wrapping machine, and ring wrapping machine. In the turntable wrapping machine, the film roll is placed on the film frame. When the goods are placed on the turntable and rotated, the film frame can move up and down, so that all positions of the goods can be wrapped by the wrapping film. After the wrapping film is wrapped on the goods, it is necessary to rely on one or more devices to complete the actions of cutting the film, clamping one end of the film, and sealing the other end of the film. According to the existing film cutting form, most of them use steel wire heating and melting, which has strict requirements on the fit between the wrapping film and the steel wire. The wrapping film is not only easy to adhere to the steel wire, but also produces smoke and odor. At the same time, the high temperature is easy to damage the goods. According to the existing sealing film form, one is to use high-temperature heating metal parts to heat the film tail and the film wrapped on the goods together. The long-term high temperature of this metal part affects safety, and cutting the hot film will also produce smoke and odor. The other method is to use a cylinder to push a cantilever equipped with a brush or rubber plate to sweep the surface of the goods, so that the film tail adheres to the goods by adhesion. The pasted film tail will fall off after long-term storage.

[0003] The Chinese patent with the authorization announcement number CN 221874426 U discloses a film clamping, film cutting and film welding mechanism, including a film clamping assembly, a baffle assembly and a welding and film cutting assembly. The two clamping plates in the film clamping assembly are driven by a cylinder to clamp the wrapping film, the baffle is set vertically by a cylinder, and the welding film plate in the welding and film cutting assembly is driven by a cylinder to be close to the baffle. At the same time, the film cutting heating wire will be close to the wrapping film, and the wrapping film will be melted by the heating of the heating wire. This solution cuts and welds the film by heating, which has the risk of high temperature and smoke and odor. The heating wire film cutting requires that the heating wire and the wrapping film are in close contact, otherwise the film in some parts will not be melted. The various components of this solution are set independently, and the equipment space occupied is relatively large.

[0004] The Chinese patent with the authorization announcement number CN 218907880 U discloses a new type of pneumatic film cutting rotary table wrapping machine, which includes a base and a column. A film clamping mechanism is arranged on one side of the base. The film clamping mechanism includes a welding part and a shell. A film clamping cylinder is installed on the welding part. The film clamping cylinder drives two sets of clamping plates to clamp the wrapping film. A film cutting mechanism is arranged on one side of the base. The film cutting mechanism is provided with a connecting plate and a rotating swing arm. The rotating arm is provided with a heating wire and a sponge pad. After the wrapping is completed, the heating wire on the film cutting mechanism heats and melts the wrapping film. The sponge pad on the film cutting mechanism is used to stick the tail of the wrapping film after the film is cut to the goods. This method relies on the self-adhesiveness of the wrapping film, has certain requirements on the quality of the wrapping film, and cannot guarantee that the film will fall off naturally after the goods are stored for a long time. Summary of the invention

[0005] The purpose of the present invention is to provide a device for processing the film tail after the goods are wound by a turntable winding machine, so as to solve the problems existing in the above-mentioned prior art. By pulling the film tail into a ball and then cutting it with a knife, the safety hazard caused by high temperature can be avoided, and the influence of smoke and odor on the environment can be avoided. The film tail is stuffed into the wrapped winding film of the previous layer to form a knotting effect, which avoids the damage of the goods by high temperature and also saves the baffle device. At the same time, the processes of clamping the film, cutting the film, and tying the knot are realized on one device, so that the space occupied is more compact while ensuring the function.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a film tail processing device for a rotary table winding machine, comprising a frame, a main swing arm, a main swing arm driving cylinder, a secondary swing arm, a secondary swing arm driving cylinder, a solenoid valve group, a cutter assembly, a clamp assembly, and a film blowing nozzle. The bottom of the main swing arm is connected to the frame through an axis, one side of the main swing arm is connected to the frame through the main swing arm driving cylinder, and the main swing arm driving cylinder drives the main swing arm to switch between a horizontal state and a vertical state. The bottom of the secondary swing arm is connected to the frame through an axis, one side of the secondary swing arm is connected to the frame through the secondary swing arm driving cylinder, and the secondary swing arm driving cylinder drives the secondary swing arm to switch between a horizontal state and a vertical state.

[0008] Preferably, a clamping plate assembly is provided on the frame, a clamping plate is installed on the clamping plate assembly, the clamping plate is driven to extend and retract by a clamping plate cylinder, the clamping plate is guided by a shaft and a linear bearing, and the clamping plate is used to pull the film into a ball and clamp it.

[0009] Preferably, a cutter cylinder is provided on the frame, a cutter is mounted on the end of the cutter cylinder, and the cutter is used to cut the film.

[0010] Preferably, a push-pull cylinder is provided inside the main swing arm, and a sliding frame is provided at the end of the telescopic cylinder. The sliding frame is connected to the inner side of the main swing arm through a slide rail, and the sliding frame can be extended and retracted from the main swing arm through the motion guidance of the slide rail and the drive of the push-pull cylinder.

[0011] Preferably, a push cylinder is arranged on the top of the sliding frame, and a bracket is arranged on the end of the push cylinder. The bracket is connected to the top of the main swing arm through a mounting plate and a slide rail, and the bracket can be pushed out of the sliding frame through the motion guidance of the slide rail and the drive of the push cylinder.

[0012] Preferably, a clamp body is arranged at the lower side of the bracket, the clamp body comprises a clamp cylinder, a clamp is arranged at the end of the clamp cylinder, and the clamp is used to clamp the membrane mass.

[0013] Preferably, the auxiliary swing arm is composed of a cylinder, and a rotating cylinder is arranged at the end of the auxiliary swing arm.

[0014] Preferably, the cutter is located between the clamping plate and the clamping jaws, the clamping plate pulls and clamps the stretch film, the clamping jaws clamp the other side of the stretch film, the cutter cuts the film ball, and the clamping jaws insert the cut stretch film tail into the previous circle of wrapped film.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] (1) The present invention processes the film tail by inserting the film tail into the film wrapped in the previous circle to form a knotted effect. It does not need to use high temperature hot film, and does not need to use sponge pads to stick the film tail, thereby avoiding the adverse effects of high temperature on the environment and people. The film tail will not fall off when the goods are stored for a long time, and there is no need to set a baffle to prevent the goods from being scalded.

[0017] (2) The present invention uses a cutter to cut the film, and does not need to use an electric heating wire to generate a high temperature to melt the film, thereby avoiding the adverse effects of high temperature on the environment and people. The film is pulled into a ball and then cut off with a high success rate, and the problem of the film not being melted due to insufficient adhesion between the heating wire and the film will not occur.

[0018] (3) The present invention integrates the film cutting, film clamping and knotting, which reduces the space occupied by the device, simplifies the structure and improves the stability and maintainability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is the overall structure diagram of the present invention;

[0021] Figure 2 for Figure 1 Exploded structure diagram;

[0022] Figure 3 for Figure 1 Exploded structure diagram of middle component 1;

[0023] Figure 4 for Figure 1 Exploded structure diagram of middle component 5;

[0024] Figure 5 for Figure 1 Exploded structure diagram of middle component 6;

[0025] Figure 6 It is the working state diagram of the present invention;

[0026] Figure 7 It is the working state diagram of the present invention;

[0027] Figure 8 This is a working state diagram of the present invention.

[0028] Among them, 1. main swing arm; 2. frame; 3. main swing arm driving cylinder; 4. solenoid valve group; 5. cutter assembly; 6. clamp assembly; 7. film blowing nozzle; 8. auxiliary swing arm driving cylinder; 9. auxiliary swing arm; 601. clamp; 602. guide rod; 603. linear bearing; 604. clamp cylinder; 501. cutter; 502. mounting plate 1; 503. cutter cylinder; 504. mounting plate 2; 505. vertical plate; 10 1. Main swing arm body; 102. Slide rail 1; 103. Nozzle; 104. Clamp body; 105. Clamp; 106. Clamp cylinder; 107. Pull-back bracket; 108. Cable guide assembly; 109. Sliding frame; 110. Push cylinder; 111. Mounting plate 3; 112. Slide rail 2; 113. Push-pull cylinder; 601. Clamp; 602. Guide rod; 603. Linear bearing; 604. Clamp cylinder. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The purpose of the present invention is to provide a device for processing film tails after the goods are wound by a rotary table winding machine, so as to solve the problems existing in the prior art. The film is pulled into a ball, clamped at two places and cut from the middle with a knife, and the film tail is inserted into the upper layer of wrapped winding film to form a knot effect. Without adding a baffle to prevent scalding of goods, it is ensured that the goods are not damaged and the film tail will not fall off.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 5 As shown, the present invention provides a film tail processing device for a rotary table wrapping machine after the goods are wrapped, comprising a frame 2, a main swing arm 1, a main swing arm driving cylinder 3, an auxiliary swing arm 9, an auxiliary swing arm driving cylinder 8, a solenoid valve group 4, a cutter assembly 5, a clamping plate assembly 6, and a film blowing nozzle 7. The film cutting, film clamping, knotting and other device structures are highly integrated, compact, and occupy a small space.

[0033] like Figure 1 , 2 As shown, the frame 2 serves as the main supporting and bearing structure and can adopt a sheet metal reinforcement rib structure and be fixed on the turntable by bolts to ensure the stability of the frame 2.

[0034] like Figure 1 , 2 As shown, the auxiliary swing arm 9 is a film-blocking structure that can rotate on the frame 2 and switch between a horizontal state and a vertical state. Specifically, the bottom of the auxiliary swing arm 9 is connected to the frame 2 through a pin shaft, and a point on the auxiliary swing arm 9 body is connected to the frame 2 through an auxiliary swing arm driving cylinder 8. The auxiliary swing arm 9 body is made of a cylinder.

[0035] like Figure 1 , 2 As shown in Figure 5, the clamping plate assembly 6 serves as a film clamping structure. The clamping plate 601 is driven by the clamping plate cylinder 604 to move back and forth to pull the flattened wrapping film into a ball and clamp it. The guide rod 602 is connected to the clamping plate 601, and the linear bearing 603 is fixed on the frame 2. The linear bearing 603 limits the movement direction of the guide rod 602 to guide the clamping plate 601.

[0036] like Figure 1 , 2 As shown in Figure 4, the cutter assembly 5 is used as a film cutting structure, the cutter 501 is installed on the rod end of the cutter cylinder 503 through the mounting plate 1 502, the cutter cylinder 503 is installed on the frame 2 through the mounting plate 2 504, and the vertical plate 505 is used to prevent the winding film from hanging on the mounting plate 2 504. The film mass can be cut by the reciprocating motion of the cutter cylinder 503.

[0037] like Figures 1 to 3 As shown, the main swing arm 1, as the main structure for film clamping and film cutting, can rotate on the frame 2 and switch between the horizontal state and the vertical state. Specifically, a place on the main swing arm 1 body is connected to the frame 2 through the main swing arm driving cylinder 3, and a push-pull cylinder 113 is arranged inside the main swing arm 1, and a sliding frame 109 is arranged at the end of the push-pull cylinder 113, and the sliding frame 109 is connected to the inner side of the main swing arm body 101 through the slide rail 102. A horizontal push cylinder 110 is arranged on the top of the sliding frame 109, and a pull-back bracket 107 is arranged at the end of the horizontal push cylinder 110, and the pull-back bracket 107 is connected to the top of the sliding frame 109 through the slide rail 2 112 and the mounting plate 3 111. A clamp body 104 is arranged at the lower side of the pull-back bracket 107, a clamp cylinder 106 is arranged inside the clamp body 104, a clamp 105 is arranged at the end of the clamp cylinder 106, the clamp 105 is used to clamp the membrane group, and the cable guide assembly 108 is used to guide the horizontal and vertical movements of the cable.

[0038] like Figures 1 to 3 As shown, the film blowing nozzle 7 is arranged on the frame 2, and is used to blow up the film head after the clamping plate 601 releases the film head at the beginning of winding, so as to wrap the film head during the film winding process. The electromagnetic valve group 4 is arranged on the frame 2, and is used to control the movement of all cylinders in the present invention and high-pressure jet.

[0039] like Figures 1 to 8 As shown, in actual operation, there is a certain distance between the auxiliary swing arm 9 and the goods. Before the turntable wrapping machine wraps the goods with the last circle of film, the auxiliary swing arm 9 turns from a horizontal state to a vertical state, and the last circle of film is wrapped inside the auxiliary swing arm 9, so that a gap is reserved between the last circle of film and the goods. After the turntable wrapping machine finishes wrapping the goods with film, the clamping plate cylinder 604 drives the clamping plate 601 to rise, the push-pull cylinder 113 pushes out the sliding frame 109, and the main swing arm 1 turns from a horizontal state to a vertical state. The push-pull cylinder 113 pulls back the sliding frame 109, and at the same time, the clamping claw 104 pulls the film into a ball and clamps it. The clamping plate cylinder 604 drives the clamping plate 601 to retract and press the film, and the cutter 501 cuts the film. The push-pull cylinder 113 pushes out the sliding frame 109 again, and the horizontal push cylinder 110 pushes out and pulls back the bracket 109. 7. The push-pull cylinder 113 pulls back the sliding frame 109 again, and the clamp 104 inserts the film tail into the reserved gap between the last circle of film and the goods. The push-pull cylinder 113 pushes out the sliding frame 109 for the third time. At the same time, the nozzle 103 sprays high-pressure air to prevent the clamp 105 from bringing out the film tail when retreating. The horizontal push cylinder 110 pulls back the bracket 107. The push-pull cylinder 113 pulls back the sliding frame 109 for the third time, and the main swing arm 1 turns from the vertical state to the horizontal state, and the auxiliary swing arm 9 turns from the vertical state to the horizontal state.

[0040] The present invention uses a cutter 501 to cut the film instead of the existing heating wire cutting method, and will not cause the film to not be cut at some point due to insufficient adhesion between the heating wire and the film, and has high efficiency. The present invention uses a film plugging and knotting method to replace the existing high-temperature film tail pasting method, which will not produce smoke to affect the environment, and there is no risk of high-position burns, and has high safety. The present invention uses a knotting method to ensure that the film tail will not fall off when the goods are stored for a long time, and has high stability.

[0041] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A film tail cutting, clamping and knotting mechanism for a rotary winding machine at the end of film winding, characterized in that: The invention comprises a frame (2), a main swing arm (1), a main swing arm driving cylinder (3), an auxiliary swing arm (9), an auxiliary swing arm driving cylinder (8), an electromagnetic valve group (4), a cutter assembly (5), a clamp assembly (6), and a film blowing nozzle (7), wherein the bottom of the main swing arm (1) is connected to the frame (2) via a shaft, and one side of the main swing arm (1) is connected to the frame (2) via the main swing arm (1) driving cylinder. The bottom of the auxiliary swing arm is connected to the frame (2) via a shaft, and one side of the auxiliary swing arm (9) is connected to the frame (2) via the auxiliary swing arm driving cylinder (8).

2. The film tail cutting, clamping and knotting device of the rotary table winding machine at the end of film wrapping according to claim 1 is characterized in that: The upper surface of the frame (2) is fixedly connected to the clamping plate assembly (6), a clamping plate (601) is installed on the clamping plate assembly (6), the outer wall of the clamping plate (601) is fixedly connected to a guide rod (602), the clamping plate (601) is driven to extend and retract by a clamping plate cylinder (604), and the clamping plate (601) is provided with a linear bearing (603) through an axis.

3. The film tail cutting, clamping and knotting device of the rotary table winding machine at the end of film wrapping according to claim 1 is characterized in that: The frame (2) is provided with a cutter cylinder (503), the end of the cutter cylinder (503) is provided with a cutter (501), the outer wall of the cutter (501) is vertically connected to a mounting plate 1 (502), the outer wall of the mounting plate 1 (502) is fixedly connected to the rod end of the cutter cylinder (503), the outer wall of the cutter cylinder (503) is fixedly connected to a mounting plate 2 (504), and the outer wall of the mounting plate 2 (504) is fixedly connected to a vertical plate (505).

4. The device for cutting, clamping and knotting the film tail at the end of film wrapping of a rotary table wrapping machine according to claim 1, characterized in that: The main swing arm (1) comprises a main swing arm body (101), a push-pull cylinder (113) is arranged inside the main swing arm body (101), a sliding frame (109) is arranged at the end of the push-pull cylinder (113), the sliding frame (109) is connected to the inner side of the main swing arm (1) through a slide rail, the outer wall of the sliding frame (109) is provided with a cable guide assembly (108), and the outer wall of the sliding frame (109) is fixedly connected with a nozzle (103).

5. The device for cutting, clamping and knotting the film tail of the rotary winding machine at the end of film wrapping according to claim 4 is characterized in that: A push cylinder (110) is arranged on the top of the sliding frame (109), and a pull-back bracket (107) is arranged at the end of the push cylinder (110). The pull-back bracket (107) is fixedly connected to the top of the main swing arm (1) through a mounting plate (502) and a slide rail (102). The outer side wall of the pull-back bracket (107) is provided with a slide rail (112), and the outer window of the slide rail (112) is fixedly connected to a mounting plate (111).

6. The device for cutting, clamping and knotting the film tail at the end of film wrapping of a rotary table wrapping machine according to claim 5, characterized in that: A clamping jaw body (104) is arranged at the lower side of the pulling-back bracket (107), and the clamping jaw body (104) comprises a clamping jaw cylinder (106), and a clamping jaw (105) is arranged at the end of the clamping jaw cylinder (106).

7. The device for cutting, clamping and knotting the film tail at the end of film wrapping of a rotary table wrapping machine according to claim 1, characterized in that: The auxiliary swing arm (9) is composed of a cylinder, and a rotating cylinder is arranged at the end of the auxiliary swing arm (9).

8. The device for cutting, clamping and knotting the film tail of a rotary winding machine at the end of film wrapping according to claim 1, characterized in that: A group of film blowing nozzles (7) are installed on the frame (2), and high-pressure airflow is ejected from the film blowing nozzles (7).

9. The device for cutting, clamping and knotting the film tail of a rotary winding machine at the end of film wrapping according to claim 1, characterized in that: The solenoid valve group (4) is installed on the frame (2).

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