A traction mechanism for film blowing machine

Abstract

The utility model discloses a traction mechanism for a film blowing machine, comprising a frame, a fixed seat is fixedly installed on one side of the outer surface of the frame, a power assembly is installed on the fixed seat, two first limit assemblies are symmetrically fixedly installed on the inner wall of one side of the frame, two second limit assemblies are symmetrically fixedly installed on the top of the frame, a traction rope body is commonly installed between the first limit assembly and the second limit assembly on the same side, and the traction rope body is connected to the power assembly. In the utility model, through the set fixed frame, power assembly, first limit assembly, second limit assembly, traction rope body, horizontal traction rope, fixed frame, movable frame and manual displacement assembly, in order to avoid the cylinder frame affecting the descending height of the horizontal traction rope, it is separated to facilitate the descent of the horizontal traction rope. When traction, the film just pulled up is wrapped around the horizontal traction rope, and then traction is automatically performed, reducing human participation and improving traction efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, in particular to a traction mechanism of a film blowing machine. Background Art

[0002] Film blowing machine is a kind of equipment used to produce plastic film, which is widely used in plastic packaging, agricultural covering film, industrial film and other fields. It realizes the continuous production of plastic film by extruding molten plastic particles and blowing them into film. Film blowing machine is mainly composed of feeding system, extrusion system, cooling system, stretching roller, cutting mechanism, etc.

[0003] Each time the film blowing machine is started, workers need to prepare a traction rope (or a thin film) to slowly pull up the film just extruded from the die head from the die head, through the traction and guide rollers, and finally to the winder. During the whole process, if there is no traction rope, multiple workers will need to relay and slowly pull the film just pulled up through the traction, through several material guide rollers and then to the winder. Since the frame height is at least 3 meters high, and the highest can even reach more than 20 meters, whether the worker prepares the traction rope at the beginning (the traction rope goes from the die head, from bottom to top, and then from top to bottom, through several guide rollers, and the direction of passing through the guide rollers cannot be wrong) or the worker relays to pull the film, the whole process is time-consuming and laborious every time. Utility Model Content

[0004] The utility model is a traction mechanism for a film blowing machine proposed in order to solve the shortcomings in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a traction mechanism of a film blowing machine, comprising a frame, a fixed seat is fixedly installed on one side of the outer surface of the frame, a power assembly is installed on the fixed seat, two first limit assemblies are symmetrically fixedly installed on the inner wall of one side of the frame, two second limit assemblies are symmetrically fixedly installed on the top of the frame, a traction rope body is commonly installed between the first limit assembly and the second limit assembly on the same side, and the traction rope body is connected to the power assembly, and a horizontal traction rope is commonly fixedly connected between the two traction rope bodies;

[0006] A cylinder frame is arranged on the inner side of the frame. The cylinder frame comprises a fixed frame and a movable frame. The fixed frame is fixedly connected to the frame. A manual displacement component is installed between the movable frame and the frame.

[0007] Furthermore, the power assembly includes a motor, and the motor is fixedly mounted on an outer wall of one side of the fixed seat, the driving end of the motor is fixedly connected to a main shaft, and the main shaft passes through the fixed seat and is rotatably connected thereto, a roller shaft is rotatably connected between the inner walls on both sides of the fixed seat, two driving wheels are symmetrically fixedly sleeved on the outer surfaces of the main shaft and the roller shaft, and a traction rope body is commonly limited and crimped between two adjacent driving wheels, and the setting of the motor is conducive to the movement of the traction rope body driven by electricity.

[0008] Furthermore, an annular anti-skid rubber sleeve is fixedly installed on the inner surfaces of the four driving wheels to increase friction and ensure the driving effect on the traction rope body.

[0009] Furthermore, the two first limiting assemblies each include a fixed rod, and the fixed rod is fixedly mounted on an inner wall of one side of the frame, one side of the outer surface of the fixed rod is rotatably connected to a guide wheel, and the guide wheel abuts against the traction rope body, and the guide wheel has a guiding and limiting effect on the traction rope body to prevent it from deviating from the moving track.

[0010] Furthermore, the two second limiting assemblies each include a mounting rod, and the mounting rod is fixedly mounted on the top of the frame. One side of the outer surface of the mounting rod is also rotatably connected to a guide wheel, and the guide wheel abuts against the traction rope body. The guide wheel has a guiding and limiting effect on the traction rope body to prevent it from deviating from the moving trajectory.

[0011] Furthermore, the manual displacement assembly includes a mounting frame, and the mounting frame is fixedly connected to the frame, one side of the outer surface of the mounting frame is provided with a screw rod penetrating to the other side, and the screw rod and the mounting frame are rotatably connected, the outer surface of the screw rod is threadedly sleeved with a connecting frame, and the connecting frame and the mounting frame are slidably connected and fixedly connected to the movable frame, one end of the screw rod is fixedly connected to a hand wheel, which can drive the movable frame away from the fixed frame to allow the cylinder frame to be opened and separated.

[0012] Furthermore, the arrangement of the two traction rope bodies is consistent with the moving trajectory of the film in the frame, thereby ensuring the traction effect on the film.

[0013] Beneficial effects of the utility model:

[0014] When the utility model is in use, the traction mechanism of the film blowing machine is configured with a fixed frame, a power component, a first limit component, a second limit component, a traction rope body, a horizontal traction rope, a fixed frame, a movable frame and a manual displacement component. In order to prevent the cylindrical frame from affecting the descending height of the horizontal traction rope, it is separated to facilitate the descent of the horizontal traction rope. During traction, the film just pulled up is wrapped around the horizontal traction rope, and then traction is automatically performed, thereby reducing human participation and improving traction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods 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.

[0016] Figure 1 : Schematic diagram of the overall structure of the utility model;

[0017] Figure 2 : The main view of the traction rope body of the utility model;

[0018] Figure 3 :The utility model Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 : Schematic diagram of the installation of the power assembly of the utility model;

[0020] Figure 5 : Schematic diagram of the connection between the manual displacement assembly and the cylinder frame of the utility model.

[0021] The reference numerals are as follows:

[0022] 1. Frame; 2. Fixed seat; 3. Fixed rod; 4. Fixed frame; 5. Traction rope body; 6. Mounting rod; 7. Roller; 8. Motor; 9. Horizontal traction rope; 10. Guide wheel; 11. Driving wheel; 12. Main shaft; 13. Movable frame; 14. Connecting frame; 15. Mounting frame; 16. Screw; 17. Handwheel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 5 As shown, it relates to a traction mechanism of a film blowing machine, including a frame 1, a fixed seat 2 is fixedly installed on one side of the outer surface of the frame 1, and a power component is installed on the fixed seat 2. Two first limit assemblies are symmetrically fixedly installed on the inner wall of one side of the frame 1, and two second limit assemblies are symmetrically fixedly installed on the top of the frame 1. A traction rope body 5 is commonly installed between the first limit assembly and the second limit assembly on the same side, and the traction rope body 5 is connected to the power component. A horizontal traction rope 9 is commonly fixedly connected between the two traction rope bodies 5. During the traction process, the film just pulled up needs to be wrapped around the horizontal traction rope 9.

[0025] The power assembly includes a motor 8, and the motor 8 is fixedly installed on the outer wall of one side of the fixed seat 2. The driving end of the motor 8 is fixedly connected to the main shaft 12, and the main shaft 12 passes through the fixed seat 2 and is rotatably connected thereto. The inner walls on both sides of the fixed seat 2 are jointly rotatably connected with a roller shaft 7. The outer surfaces of the main shaft 12 and the roller shaft 7 are symmetrically fixedly sleeved with two driving wheels 11, and the traction rope body 5 is commonly limited and crimped between two adjacent driving wheels 11. The inner surfaces of the four driving wheels 11 are fixedly installed with an annular anti-slip rubber sleeve. The two first limiting assemblies each include a fixed rod 3, and the fixed The fixed rod 3 is fixedly mounted on an inner wall of one side of the frame 1, and one side of the outer surface of the fixed rod 3 is rotatably connected to a guide wheel 10, and the guide wheel 10 abuts against the traction rope body 5. The two second limit assemblies both include a mounting rod 6, and the mounting rod 6 is fixedly mounted on the top of the frame 1, and one side of the outer surface of the mounting rod 6 is also rotatably connected to a guide wheel 10, and the guide wheel 10 abuts against the traction rope body 5. The motor 8 drives the main shaft 12 to rotate, and the main shaft 12 drives the two driving wheels 11 connected thereto to rotate, and the two adjacent driving wheels 11 cooperate to squeeze and drive the traction rope body 5.

[0026] A cylinder frame is provided on the inner side of the frame 1, and the cylinder frame includes a fixed frame 4 and a movable frame 13, and the fixed frame 4 is fixedly connected to the frame 1, and a manual displacement component is installed between the movable frame 13 and the frame 1. The cylinder frame is designed to be split to facilitate its opening operation.

[0027] The manual displacement assembly includes a mounting frame 15, and the mounting frame 15 is fixedly connected to the frame 1, one side of the outer surface of the mounting frame 15 is provided with a screw rod 16 that penetrates to the other side, and the screw rod 16 is rotatably connected to the mounting frame 15, the outer surface of the screw rod 16 is threadedly sleeved with a connecting frame 14, and the connecting frame 14 is slidably connected to the mounting frame 15 and fixedly connected to the movable frame 13, one end of the screw rod 16 is fixedly connected to a hand wheel 17, and the hand wheel 17 is turned to drive the screw rod 16 to rotate, and the screw rod 16 drives the connecting frame 14 to move along the mounting frame 15, and the connecting frame 14 drives the movable frame 13 to move when it moves.

[0028] The arrangement of the two traction rope bodies 5 is consistent with the moving trajectory of the film in the frame 1, which can ensure the traction effect on the film.

[0029] Working principle: Turn the hand wheel 17, the hand wheel 17 drives the screw 16 to rotate, the screw 16 drives the connecting frame 14 to move along the mounting frame 15, the connecting frame 14 drives the movable frame 13 away from the fixed frame 4, and then the motor 8 is started, the motor 8 drives the main shaft 12 to rotate, the main shaft 12 drives the two driving wheels 11 connected thereto to rotate, and the two adjacent driving wheels 11 cooperate to squeeze and drive the traction rope body 5, thereby driving the horizontal traction rope 9 to descend to the set position, and the film just pulled up is wrapped around the horizontal traction rope 9, and then the motor 8 is reversed, and the horizontal traction rope 9 is driven to move toward the fixed seat 2 through various components. When one end of the film moves to the set position, it can be removed from the horizontal traction rope 9. In this process, the cylinder frame is driven to close by the manual displacement component.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A film blowing machine traction mechanism, comprising a frame (1), characterized in that: A fixing seat (2) is fixedly mounted on one side of the outer surface of the frame (1), and a power assembly is mounted on the fixing seat (2); two first limit assemblies are symmetrically fixedly mounted on the inner wall of one side of the frame (1); two second limit assemblies are symmetrically fixedly mounted on the top of the frame (1); a traction rope body (5) is commonly mounted between the first limit assemblies and the second limit assemblies on the same side, and the traction rope body (5) is connected to the power assembly; and a transverse traction rope (9) is commonly fixedly connected between the two traction rope bodies (5); A cylindrical frame is provided on the inner side of the frame (1), the cylindrical frame comprising a fixed frame (4) and a movable frame (13), the fixed frame (4) and the frame (1) are fixedly connected, and a manual displacement component is installed between the movable frame (13) and the frame (1).

2. The film blowing machine traction mechanism according to claim 1, characterized in that: The power assembly comprises a motor (8), and the motor (8) is fixedly mounted on an outer wall of one side of a fixed seat (2), a driving end of the motor (8) is fixedly connected to a main shaft (12), and the main shaft (12) passes through the fixed seat (2) and is rotatably connected thereto, a roller shaft (7) is rotatably connected between the inner walls on both sides of the fixed seat (2), two driving wheels (11) are symmetrically fixedly sleeved on the outer surfaces of the main shaft (12) and the roller shaft (7), and a traction rope body (5) is commonly limited and crimped between two adjacent driving wheels (11).

3. A film blowing machine traction mechanism according to claim 2, characterized in that: An annular anti-slip rubber sleeve is fixedly mounted on the inner surfaces of the four driving wheels (11).

4. The traction mechanism of the film blowing machine according to claim 1, characterized in that: The two first limit assemblies each comprise a fixed rod (3), and the fixed rod (3) is fixedly mounted on an inner wall of one side of the frame (1), and a guide wheel (10) is rotatably connected to one side of the outer surface of the fixed rod (3), and the guide wheel (10) abuts against the traction rope body (5).

5. The film blowing machine traction mechanism according to claim 4, characterized in that: The two second limit assemblies each comprise a mounting rod (6), and the mounting rod (6) is fixedly mounted on the top of the frame (1), and one side of the outer surface of the mounting rod (6) is also rotatably connected to a guide wheel (10), and the guide wheel (10) abuts against the traction rope body (5).

6. The traction mechanism of the film blowing machine according to claim 1, characterized in that: The manual displacement assembly comprises a mounting frame (15), and the mounting frame (15) is fixedly connected to the frame (1); one side of the outer surface of the mounting frame (15) is provided with a screw rod (16) penetrating to the other side, and the screw rod (16) and the mounting frame (15) are rotatably connected; the outer surface of the screw rod (16) is threadedly sleeved with a connecting frame (14), and the connecting frame (14) is slidably connected to the mounting frame (15) and fixedly connected to the movable frame (13); one end of the screw rod (16) is fixedly connected to a hand wheel (17).

7. The traction mechanism of the film blowing machine according to claim 1, characterized in that: The arrangement of the two traction rope bodies (5) is consistent with the moving trajectory of the film in the frame (1).

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