Cutting, clamping and knotting mechanism of swivel type winding machine

Abstract

The invention discloses a rotating ring type winding machine cutting, clamping and knotting mechanism which comprises a truss, a film pressing, blocking and cutting assembly, a film clamping assembly and an electromagnetic valve set, the film pressing, blocking and cutting assembly is connected with the truss, and the film clamping assembly is connected with the film pressing, blocking and cutting assembly. After the truss translates to a certain distance from goods, a film baffle plate in the film pressing, blocking and cutting assembly is straightened downwards to pull out a gap between a winding film and the goods, a clamping plate in the film pressing, blocking and cutting assembly pulls the film into a ball and clamps the film, a clamping jaw in the film clamping assembly clamps the film, a cutter in the film pressing, blocking and cutting assembly cuts off the film, and the film pressing, blocking and cutting assembly cuts off the film. And the film clamping assembly translates to be close to the goods and plugs the film tail into the gap to form a 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 swivel type winding machine, in particular to a cutting, clamping and knotting mechanism of a swivel type winding machine. Background Art

[0002] The ring wrapping machine is a device that pulls out the film from the wrapping film roll and rotates it around the goods so that the film wraps the goods. According to the way the film frame rotates relative to the goods, the wrapping machine can be divided into a rocker-type wrapping machine, a turntable-type wrapping machine, and a ring wrapping machine. In the ring wrapping machine, the film roll is placed on the film frame, and the film frame is fixed on the swivel. The swivel can rotate around the center and can be lifted up and down. When wrapping, the goods are placed inside the swivel. After the film is taken out, the film frame rotates around the goods, 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 forms, most of them use steel wire heating and melting, which has strict requirements on the fit between the wrapping film and the steel wire. In addition, the wrapping film is not only easy to adhere to the steel wire, but also produces smoke and odor, and the high temperature is easy to damage the goods. According to the existing sealing film forms, one is to use high-temperature heated metal parts to heat the film tail and the film wrapped on the goods together. The long-term high temperature of the metal parts affects safety, and cutting and hot film will also produce smoke and odor. The other is to use a cylinder to push the 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 stickiness. 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 blocks 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 and rotating ring 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 groups of clamping blocks 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 rotary 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 knot effect, which avoids high temperature damage to the goods and also saves the baffle device to prevent the goods from being scalded. 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 winding machine, comprising a truss, a film pressing, film blocking and film cutting assembly, a film clamping assembly, and a solenoid valve group, wherein the film pressing, film blocking and film cutting assembly is connected to the truss, and the film clamping assembly is connected to the film pressing, film blocking and film cutting assembly. After the truss is translated to a certain distance from the goods, the film blocking plate in the film pressing, film blocking and film cutting assembly is straightened downward to pull a gap between the winding film and the goods, the clamping plate in the film pressing, film blocking and film cutting assembly pulls the film into a ball and clamps it, the clamping claw in the film clamping assembly clamps the film, the cutting knife in the film pressing, film blocking and film cutting assembly cuts the film, and the film clamping assembly is translated close to the goods and inserts the film tail into the gap to form a knotting effect.

[0008] Preferably, the truss can move horizontally and be positioned by a sensor to a position at a certain distance from the cargo.

[0009] Preferably, a film-pulling cylinder is arranged in the film pressing, film retaining and film cutting assembly, and the film-pulling cylinder is connected to a pressure plate, and the pressure plate is guided by a slide rail. The pressure plate can pull the spread wrapping film into a ball and press it. A swing arm is arranged at the bottom of the film pressing, film retaining and film cutting assembly, and the swing arm is driven by a cylinder to switch between horizontal and vertical states.

[0010] Preferably, a telescopic cylinder is provided in the film clamping assembly, a sliding frame is provided at the end of the telescopic cylinder, and the sliding frame is connected to the outer side of the film clamping assembly fixing frame through a slide rail.

[0011] Preferably, a horizontal push cylinder is arranged on the top of the truss, and the end of the horizontal push cylinder is connected to a fixing frame in the film clamping assembly. The fixing frame is connected to the truss via a slide rail.

[0012] Preferably, a clamping claw is provided at the bottom of the sliding frame, and the clamping claw is driven to close by a clamping claw cylinder.

[0013] Compared with the prior art, the present invention has achieved the following technical effects:

[0014] (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.

[0015] (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.

[0016] (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

[0017] 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.

[0018] Figure 1 It is the overall structure diagram of the present invention;

[0019] Figure 2 for Figure 1 Exploded structure diagram of middle component 1;

[0020] Figure 3 for Figure 1 Exploded structure diagram of middle component 2;

[0021] Figure 4 for Figure 1 Exploded structure diagram of middle component 3;

[0022] Figure 5 It is the working state diagram of the present invention;

[0023] Figure 6 It is the working state diagram of the present invention;

[0024] Figure 7 It is the working state diagram of the present invention;

[0025] Figure 8 This is a working state diagram of the present invention.

[0026] Among them, 1. Truss; 2. Film pressing, film blocking and film cutting assembly; 3. Film clamping assembly; 4. Solenoid valve group; 5. Stretch film; 6. Goods; 11. Translation cylinder; 12. Roller; 12. Film clamping cylinder; 14. Slide rail; 21. Rack; 29. ​​Side slide rail; 22. Film pulling rack; 23. Right cylinder; 24. Cutter; 25. Left cylinder; 26. Rotating shaft; 27. Film blocking plate; 31. Film clamping rack; 38. Bottom cylinder; 37. Slide plate; 39. Film clamping slide rail; 32. Pipe clamp; 33. Clamp block; 34. Clamp; 36. Nozzle. DETAILED DESCRIPTION

[0027] 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.

[0028] The purpose of the present invention is to provide a device for processing film tails after the goods are wound by a rotary 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.

[0029] 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.

[0030] like Figures 1 to 4 As shown, the present invention provides a film tail processing device for a rotary wrapping machine after winding of goods, comprising a truss 1, a film pressing, blocking and cutting assembly 2, a film clamping assembly 3, and a solenoid valve assembly 4. The film cutting, film clamping, and knotting devices are highly integrated, compact, and occupy little space.

[0031] like Figure 1 , 2As shown, the truss 1, as the main supporting and bearing structure, can adopt a beam-column structure, and rollers 12 are installed at both ends so that it can be driven to translate in the horizontal direction by the translation cylinder 11. The electromagnetic valve group 4 is installed on the top of the truss 1. The film clamping assembly 3 is installed on the truss 1 through the slide rail 14, and the film clamping assembly 3 is driven by the film clamping cylinder 13 so that it can move.

[0032] like Figure 1 , 3 As shown, the film pressing, film blocking and film cutting assembly 2 is a structure that integrates the actions of film bundling, film pressing, film blocking and film cutting. It can pull the flat film into a ball, press it and cut it, and at the same time, it can block the film so that the last circle of film and the goods 6 maintain a certain distance. Specifically, the side of the frame 21 is fastened to the truss 1 by bolts, the film drawing frame 22 is installed on the north side of the frame 21 through the side slide rail 29, the right cylinder 23 is fixed on the frame 21, and the cylinder rod is connected to the film drawing frame 22, so as to control the up and down movement of the film drawing frame 22 through the telescopic movement of the right cylinder 23, so that the flat film can be pulled into a ball and pressed. A right cylinder 23 is set on the side of the frame 21, and the cutter 24 is set at the rod end of the right cylinder 23. The cutter 24 is driven up and down by the right cylinder 23 so that the film ball can be cut. A left cylinder 25 is disposed on the other side of the frame 21 , and a film baffle 27 is mounted on the lower end of the frame 21 via a rotating shaft 26 . The film baffle 27 can be switched between a horizontal state and a vertical state by driving a right cylinder 23 .

[0033] like Figure 1 , 4 As shown, the film clamping assembly 3 is the main structure of the film clamping, and moves up and down to clamp and release the film. Specifically, the film clamping frame 31 and the truss 1 are connected by the slide rail 14, and a bottom cylinder 38 is built into the bottom of the film clamping frame 31. The rod end of the bottom cylinder 38 is connected to the slide plate 37. A film clamping slide rail 39 is set on the side of the film clamping frame 31, and the other side of the film clamping slide rail 39 is connected to the slide plate 37. A pipe clamp 32 is set at the bottom of the slide plate 37, and the pipe clamp 32 is connected to the clamping claw 34. A clamping block 33 is set at the bottom of the clamping claw 34, and a nozzle 36 is set at the bottom of the slide plate 37. The clamping claw 34 can move up and down by driving the bottom cylinder 38.

[0034] like Figures 1 to 8As shown, before the winding machine winds the last lap of the goods, the film baffle 27 is switched from the horizontal state to the vertical state, and the film rack bypasses the film baffle 27 so that a gap is formed between the last lap of the film and the goods 6. The film pulling rack 22 moves to the lowermost end under the drive of the right cylinder 23. After the film rack bypasses the film baffle 27 again, the winding film 5 is blocked by the film pulling rack 22. The film pulling rack 22 moves to the uppermost end under the drive of the right cylinder 23, and the winding film 5 is pulled into a ball and pressed. The slide plate 37 moves to the lowermost end under the drive of the bottom cylinder 38. The clamping jaws 34 squeeze the film into a ball and clamp the film ball with the clamping block 33. The cutting knife 24 reciprocates under the drive of the right cylinder 23 to cut off the film ball. The slide plate 37 moves to the uppermost end under the drive of the bottom cylinder 38. The film clamping assembly 3 moves towards the goods 6 under the drive of the film clamping cylinder 13. The slide plate 37 moves to the lowermost end again under the drive of the bottom cylinder 38. At this time, the film tail has been placed in the gap between the film pulling rack 27 and the goods 6. The slide plate 37 moves to the uppermost end again under the drive of the bottom cylinder 38 and is blown up by the nozzle 36 to prevent the film tail from being taken out. The film clamping assembly 3 returns to its original position under the drive of the film clamping cylinder 13. The film baffle 27 is switched from the vertical state to the horizontal state.

[0035] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A cutting, clamping and knotting mechanism of a rotary winding machine, characterized in that: The invention comprises a truss (1), a film pressing, film blocking and film cutting assembly (2), a film clamping assembly (3) and a solenoid valve group (4); the film pressing, film blocking and film cutting assembly (2) is connected to the truss (1); rollers (12) are rotatably connected to both ends of the truss (1); the film clamping assembly (3) is connected to the film pressing, film blocking and film cutting assembly (2); the outer wall of the film clamping assembly (3) is fixedly connected to a slide rail (14); the outer wall of the slide rail (14) is fixedly connected to the truss (1); and the outer wall of the truss (1) is provided with a translation cylinder (11).

2. The device for cutting, clamping and knotting the film tail of the ring-type winding machine at the end of film wrapping according to claim 1 is characterized in that: The outer wall of the truss (1) is fixedly connected to a frame (21) by bolts, the outer wall of the frame (21) is fixedly connected to a side slide rail (29), the outer wall of the side slide rail (29) is fixedly connected to a film pulling frame (22), the inside of the frame (21) is fixedly connected to a right cylinder (23), the rod end of the right cylinder (23) is fixedly connected to a cutter (24), the inside of the frame (21) is fixedly connected to a left cylinder (25), the lower surface of the frame (21) is fixedly connected to a rotating shaft 26, and the bottom end of the rotating shaft (26) is fixedly connected to a film baffle (27).

3. The device for cutting, clamping and knotting the film tail of the ring-type winding machine at the end of film wrapping according to claim 1, characterized in that: A film-pulling cylinder is arranged inside the film pressing, film blocking and film cutting assembly (2), and a swing arm is arranged at the bottom of the film pressing, film blocking and film cutting assembly (2).

4. The device for cutting, clamping and knotting the film tail of the ring-type winding machine at the end of film wrapping according to claim 1 is characterized in that: A telescopic cylinder is arranged in the film clamping assembly (3), and a sliding frame is arranged at the end of the telescopic cylinder. The sliding frame is slidably connected to the outer side of the fixed frame of the film clamping assembly (3). The film clamping frame (31) is slidably connected to the truss (1) via a slide rail (14). The bottom of the film clamping frame (31) is fixedly connected to a bottom cylinder (38), and the rod end of the bottom cylinder (38) is slidably connected to a slide plate (37). The outer wall of the film clamping frame (31) is provided with a film clamping slide rail (39), and the outer wall of the film clamping assembly (3) is provided with a film clamping cylinder (13).

5. The device for cutting, clamping and knotting the film tail of the ring-type winding machine at the end of film wrapping according to claim 1, characterized in that: A push cylinder is arranged on the top of the truss (1), and the end of the push cylinder is connected to the fixing frame in claim 4.

6. The device for cutting, clamping and knotting the film tail of the ring-type winding machine at the end of film wrapping according to claim 4 is characterized in that: The outer wall of the film clamping slide rail (39) is slidably connected to the slide plate (37), the lower surface of the slide plate (37) is provided with a tube clamp (32), the outer wall of the tube clamp (32) is fixedly connected with a clamping claw (34), the bottom end of the clamping claw (34) is provided with a clamping block (33), and the lower surface of the slide plate (37) is provided with a nozzle (36).

7. The device for cutting, clamping and knotting the film tail of the ring-type winding machine at the end of film wrapping according to claim 1, characterized in that: The solenoid valve group (4) is installed on the truss (1), and the solenoid valve group (4) controls the movement of all cylinders.

8. The device for cutting, clamping and knotting the film tail of the ring-type winding machine at the end of film wrapping according to claim 1, characterized in that: The outer side wall of the truss (1) is provided with goods (6), and the outer side wall of the truss (1) is provided with a wrapping film (5).

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