Slitting machine for packaging bag processing

Abstract

The utility model discloses a slitting machine for packaging bag processing. The slitting machine comprises a shell and a tensioning mechanism. A supporting frame plate is arranged on the upper surface of the shell, an unwinding roller is rotationally connected to the front end between the left inner wall and the right inner wall of the supporting frame plate through a first rotating shaft, a winding roller is rotationally connected to the rear end between the left inner wall and the right inner wall of the supporting frame plate through a second rotating shaft, electric push rods are arranged at the upper end of the supporting frame plate, and a door-shaped frame is arranged between the lower ends of the telescopic ends of the electric push rods. A door-shaped frame is arranged in the shell, a rotating column is rotationally connected between the left inner wall and the right inner wall of the door-shaped frame through a third rotating shaft, slitting cutters are arranged on the outer arc faces of the rotating column correspondingly, and a single-chip microcomputer is arranged on the right side face of the supporting frame plate. And shaking of the tensioning component is avoided, the stability of the tensioning force in the slitting process is guaranteed, and the processing quality of packaging bag processing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag processing, in particular to a slitting machine for packaging bag processing. Background Art

[0002] The main function of packaging bags is to protect goods. They can effectively protect goods from physical damage, such as squeezing, impact and temperature changes. They can also prevent food from contacting oxygen, moisture and stains, thereby preventing food from spoiling and bacterial reproduction, and extending the shelf life of food. There are many materials for packaging bags, among which common materials are plastic, paper, cloth, aluminum foil, etc. In the processing of packaging bags, in order to facilitate the full utilization of raw materials, it is necessary to use a slitting machine to cut the packaging bag raw materials; in the prior art, in order to facilitate the continuous contact between the raw materials and the slitting knife, unwinding rollers and rewinding rollers are often set at both ends of the slitting machine. By releasing and rewinding the raw materials, continuous transportation of the raw materials is achieved. However, during the transportation process, it is inconvenient to determine the tension of the raw materials, and it is easy for the tension of the raw materials to be too large or too small, affecting the processing quality of the packaging bags. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a slitting machine for packaging bag processing, which uses elastically connected tensioning rollers to determine the tensioning force of the packaging bag raw materials, avoids the shaking of the tensioning components, ensures the stability of the tensioning force during the slitting process, improves the processing quality of the packaging bag processing, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slitting machine for packaging bag processing, comprising a housing and a tensioning mechanism;

[0005] Shell: A support frame is provided on its upper surface, a reel is connected to the front end of the left and right inner walls of the support frame through a first rotating shaft, a reel is connected to the rear end of the left and right inner walls of the support frame through a second rotating shaft, electric push rods are provided at the upper ends of the support frame, a door frame is provided between the telescopic ends and the lower ends of the electric push rods, a rotating column is connected to the left and right inner walls of the door frame through a third rotating shaft, and slitting knives are provided on the outer arc surfaces of the rotating columns, a single-chip microcomputer is provided on the right side of the support frame, the input end of the single-chip microcomputer is electrically connected to the external power supply, and the input end of the electric push rod is electrically connected to the output end of the single-chip microcomputer;

[0006] Tensioning mechanism: It is set inside the shell and uses the elastically connected tensioning roller to determine the tensioning force of the packaging bag raw material to avoid the shaking of the tensioning component, ensure the stability of the tensioning force during the slitting process, and improve the processing quality of the packaging bag processing.

[0007] Furthermore, the tensioning mechanism includes a slide plate and a tensioning roller, and the slide plates are respectively vertically slidably connected to the sliding holes on the upper surface of the shell, and the two slide plates corresponding to the lateral positions are rotatably connected to the tensioning roller through a rotating shaft four, and the two tensioning rollers are both located between the unwinding roller and the winding roller, and the slitting knife is located between the two tensioning rollers to tension the packaging bag raw materials.

[0008] Furthermore, the tensioning mechanism also includes a connecting plate and a screw, the screw is rotatably connected between the upper and lower inner walls of the shell, the outer arc surface of the screw is threadedly connected to the connecting plate, and the lower ends of the slides are fixedly connected to the connecting plate, so that the four slides move up and down synchronously.

[0009] Furthermore, the connecting plate includes a horizontal plate, an internally threaded tube, a limiting ring and a tension spring. The internally threaded tube is threadedly connected to the outer arc surface of the screw rod. The outer arc surface of the internally threaded tube is vertically slidably connected to the horizontal plate. The lower end of the slide plate is fixedly connected to the horizontal plate. A limiting ring is provided at the upper end of the outer arc surface of the internally threaded tube. A tension spring is provided between the limiting ring and the horizontal plate. The tension spring is movably sleeved on the outer arc surface of the internally threaded tube to facilitate determination of the tensioning force.

[0010] Furthermore, the connecting plate also includes a slide groove, a limiting ball and a spring. The slide grooves are respectively arranged on the inner arc surface of the cross plate. The inside of the slide groove is slidably connected with the limiting ball. Springs are arranged between the limiting ball and the inner wall of the slide groove. The limiting ball is installed in cooperation with the groove on the outer arc surface of the internal threaded tube to increase the force required for the movement of the internal threaded tube.

[0011] Furthermore, the tensioning mechanism also includes an adjusting motor, which is arranged at the upper end of the shell, the output shaft of the adjusting motor is fixedly connected to the screw, and the input end of the adjusting motor is electrically connected to the output end of the single-chip microcomputer to provide power for the rotation of the screw.

[0012] Furthermore, a motor 1 is provided on the right side of the supporting frame plate, the output shaft of the motor 1 on the rear side is fixedly connected to the rotating shaft 2 of the winding roller, the output shaft of the motor 1 on the front side is fixedly connected to the rotating shaft 1 of the unwinding roller, and a motor 2 is provided on the right side of the door frame, the output shaft of the motor 2 is fixedly connected to the rotating shaft 3 of the rotating column, and the input ends of the motor 1 and the motor 2 are electrically connected to the output end of the single-chip microcomputer to provide power for the rotation of the winding roller and the slitting knife.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the slitting machine for packaging bag processing has the following advantages:

[0014] During the processing of packaging bags, the packaging bag raw materials are installed between the unwinding roller and the winding roller, and the motor 1 is started by the single-chip microcomputer to convey the packaging bag raw materials. At the same time, the adjusting motor is started, and the tensioning roller is used to apply an upward pulling force to the packaging bag raw materials to tension the packaging bag raw materials. As the tensioning force continues to increase, the internal threaded tube and the cross plate slide relative to each other. When the limit plate contacts the contact sensor, the movement of the tensioning roller is stopped, and the limit plate is used to limit the expansion and contraction range of the tension spring, and the tensioning force of the packaging bag raw materials is automatically determined to avoid reducing the tensioning force of the packaging bag raw materials. Then, the motor 2 and the electric push rod are started, and the packaging bag raw materials are slit by the high-speed rotating slitting knife. The tensioning force of the packaging bag raw materials is determined by the elastically connected tensioning roller to avoid shaking of the tensioning components, thereby ensuring the stability of the tensioning force during the slitting process and improving the processing quality of the packaging bag processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic structural diagram of a side cross-section of the overall device of the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0018] In the figure: 1 housing, 2 supporting frame plate, 3 unwinding roller, 4 winding roller, 5 electric push rod, 6 door frame, 7 rotating column, 8 slitting knife, 9 tensioning mechanism, 91 slide plate, 92 tensioning roller, 93 connecting plate, 931 cross plate, 932 internal threaded pipe, 933 limiting ring, 934 tension spring, 935 slide groove, 936 limiting ball, 937 spring, 94 screw, 95 adjusting motor, 10 single chip microcomputer, 11 motor one, 12 motor two. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] See also Figure 1-3 , This embodiment provides a technical solution: a slitting machine for packaging bag processing, comprising a housing 1 and a tensioning mechanism 9;

[0021] Shell 1: A support frame 2 is provided on its upper surface to provide support for the arrangement of the slitting components. A reel 3 is rotatably connected to the front end between the left and right inner walls of the support frame 2 through a rotating shaft 1, and a reel 4 is rotatably connected to the rear end between the left and right inner walls of the support frame 2 through a rotating shaft 2. The packaging bag raw material is installed between the reel 3 and the reel 4. Through the rotation of the reel 4, the packaging bag raw material is wound on the outer arc surface of the reel 3 and reeled on the outer arc surface of the reel 4 to transport the packaging bag raw material. Electric push rods 5 are provided at the upper ends of the support frame 2, and a door frame 6 is provided between the lower ends of the telescopic ends of the electric push rods 5. A rotating column 7 is rotatably connected to the left and right inner walls of the door frame 6 through a rotating shaft 3. The outer arc surfaces of the rotating columns 7 are provided with slitting knives 8. The electric push rods 5 are started, and the telescopic ends of the electric push rods 5 drive the door frame 6 moves downward, so that the high-speed rotating slitting knife 8 contacts the packaging bag raw material and slits the packaging bag raw material. A single-chip microcomputer 10 is provided on the right side of the supporting frame plate 2 to control the start and stop of the entire device. The input end of the single-chip microcomputer 10 is electrically connected to an external power supply, and the input end of the electric push rod 5 is electrically connected to the output end of the single-chip microcomputer 10. A motor 11 is provided on the right side of the supporting frame plate 2. The output shaft of the motor 11 on the rear side is fixedly connected to the second rotating shaft of the winding roller 4, and the output shaft of the motor 11 on the front side is fixedly connected to the first rotating shaft of the unwinding roller 3. A motor 2 12 is provided on the right side of the door frame 6. The output shaft of the motor 2 12 is fixedly connected to the third rotating shaft of the rotating column 7. The input ends of the motor 11 and the motor 2 12 are both electrically connected to the output end of the single-chip microcomputer 10 to provide power for the rotation of the winding roller 4 and the slitting knife 8.

[0022] Tensioning mechanism 9: arranged inside the shell 1, the tensioning mechanism 9 includes a slide plate 91 and a tensioning roller 92, the slide plates 91 are respectively vertically slidably connected to the slide holes on the upper surface of the shell 1, and the two slide plates 91 corresponding to the lateral position are rotatably connected to the tensioning roller 92 through the rotating shaft 4, the two tensioning rollers 92 are located between the unwinding roller 3 and the winding roller 4, and the slitting knife 8 is located between the two tensioning rollers 92. The tensioning mechanism 9 also includes a connecting plate 93 and a screw rod 94, the screw rod 94 is rotatably connected between the upper and lower inner walls of the shell 1, and the outer arc surface of the screw rod 94 is threadedly connected to the connecting plate 93, and the lower ends of the slide plates 91 are fixedly connected to the connecting plate 93, and the connecting plate 93 The slide plate 91 includes a horizontal plate 931, an internally threaded tube 932, a limiting ring 933 and a tension spring 934. The internally threaded tube 932 is threadedly connected to the outer arc surface of the screw rod 94. The outer arc surface of the internally threaded tube 932 is vertically slidably connected to the horizontal plate 931. The lower ends of the slide plates 91 are fixedly connected to the horizontal plate 931. A limiting ring 933 is provided at the upper end of the outer arc surface of the internally threaded tube 932. A tension spring 934 is provided between the limiting ring 933 and the horizontal plate 931. The tension spring 934 is movably sleeved on the outer arc surface of the internally threaded tube 932. When the screw rod 94 rotates, the four slide plates 91 limit the rotation of the horizontal plate 931. The internally threaded tube 932 is threadedly connected to the screw rod 94. When the tension spring 934 is in contact with the horizontal plate 931, the rotation of the horizontal plate 931 is limited. 4, driving the cross plate 931 and the slide plate 91 to move upward, using the tensioning roller 92 to apply an upward pulling force to the packaging bag raw material, so that the packaging bag raw material is tensioned. As the tensioning roller 92 moves upward, the reaction force applied by the packaging bag raw material to the tensioning roller 92 will overcome the elastic force of the tension spring 934, so that the internal threaded tube 932 and the cross plate 931 slide relatively, and the tensioning force of the packaging bag raw material is determined according to the expansion and contraction range of the tension spring 934. The connecting plate 93 also includes a slide groove 935, a limiting ball 936 and a spring 937. The slide grooves 935 are respectively arranged on the inner arc surface of the cross plate 931, and the interior of the slide grooves 935 is slidably connected to the limiting ball 936. A spring 937 is provided between the ball 936 and the inner wall of the slide groove 935. The limiting ball 936 is installed in cooperation with the groove on the outer arc surface of the internal threaded tube 932. Under the elastic force of the spring 937, the limiting ball 936 enters the groove on the outer arc surface of the internal threaded tube 932, thereby increasing the force required for the relative sliding of the internal threaded tube 932 and the cross plate 931, and making the tensioning force more stable. The tensioning mechanism 9 also includes an adjusting motor 95, which is arranged at the upper end of the shell 1. The output shaft of the adjusting motor 95 is fixedly connected to the screw 94. The input end of the adjusting motor 95 is electrically connected to the output end of the single-chip microcomputer 10 to provide power for the rotation of the screw 94.

[0023] The working principle of a slitting machine for packaging bag processing provided by the utility model is as follows: during the processing of packaging bags, the packaging bag raw material is installed between the unwinding roller 3 and the winding roller 4, and the motor 11 is started by the single-chip microcomputer 10. The output shaft of the motor 11 drives the winding roller 4 and the unwinding roller 3 to rotate, and the packaging bag raw material is wound on the outer arc surface of the unwinding roller 3, and wound on the outer arc surface of the winding roller 4 to convey the packaging bag raw material. At the same time, the adjustment motor 95 is started, and the output shaft of the adjustment motor 95 drives the screw rod 94 to rotate. The four slide plates 91 limit the rotation of the cross plate 931, and the screw rod 94 is connected to the internal threaded tube 932 through the threaded connection. Under the connection of the tension spring 934, the cross plate 931 and the slide plate 91 are driven to move upward, and the tensioning roller 92 is used to apply an upward pulling force to the packaging bag raw material to make the packaging bag raw material tense. When the tightening roller 92 moves upward, the reaction force exerted by the packaging bag material on the tensioning roller 92 will overcome the elastic force of the tension spring 934, so that the internal threaded tube 932 and the cross plate 931 slide relative to each other. The tensioning force of the packaging bag material is determined according to the expansion and contraction range of the tension spring 934. During the relative sliding of the internal threaded tube 932 and the cross plate 931, under the elastic force of the spring 937, the limiting ball 936 enters the groove on the outer arc surface of the internal threaded tube 932, increasing the force required for the relative sliding of the internal threaded tube 932 and the cross plate 931, making the tensioning force more stable. Then, start the motor 2 12, and the output shaft of the motor 2 12 drives the rotating column 7 and the slitting knife 8 to rotate. Start the electric push rod 5, and the telescopic end of the electric push rod 5 drives the door frame 6 to move downward, so that the high-speed rotating slitting knife 8 contacts the packaging bag material to slit the packaging bag material.

[0024] It is worth noting that the single chip microcomputer 10 disclosed in the above embodiment can use a PIC16F1823-I / P model single chip microcomputer, and the electric push rod 5, the adjusting motor 95, the motor 1 11 and the motor 2 12 can be freely configured according to the actual application scenario. The electric push rod 5 can use an ANT-52 model electric push rod, and the adjusting motor 95, the motor 1 11 and the motor 2 12 can all use 3M57-42A model stepper motors. The single chip microcomputer 10 controls the electric push rod 5, the adjusting motor 95, the motor 1 11 and the motor 2 12 to work using methods commonly used in the prior art.

[0025] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A slitting machine for packaging bag processing, characterized in that: It comprises a housing (1) and a tensioning mechanism (9); A housing (1): a support frame (2) is provided on its upper surface; a front end between the left and right inner walls of the support frame (2) is rotatably connected to a reeling roller (3) via a first rotating shaft; a rear end between the left and right inner walls of the support frame (2) is rotatably connected to a reeling roller (4) via a second rotating shaft; electric push rods (5) are provided at the upper ends of the support frame (2); a door frame (6) is provided between the telescopic ends and the lower ends of the electric push rods (5); a rotating column (7) is rotatably connected between the left and right inner walls of the door frame (6) via a third rotating shaft; a slitting knife (8) is provided on the outer arc surface of the rotating column (7); a single chip microcomputer (10) is provided on the right side surface of the support frame (2); an input end of the single chip microcomputer (10) is electrically connected to an external power supply; and an input end of the electric push rod (5) is electrically connected to an output end of the single chip microcomputer (10); Tensioning mechanism (9): arranged inside the housing (1).

2. A slitting machine for packaging bag processing according to claim 1, characterized in that: The tensioning mechanism (9) comprises a slide plate (91) and a tensioning roller (92), wherein the slide plates (91) are respectively vertically slidably connected to the slide holes on the upper surface of the shell (1), and the two slide plates (91) corresponding to the horizontal positions are both rotatably connected to the tensioning roller (92) via a rotating shaft 4, and the two tensioning rollers (92) are both located between the unwinding roller (3) and the winding roller (4), and the slitting knife (8) is located between the two tensioning rollers (92).

3. A slitting machine for packaging bag processing according to claim 2, characterized in that: The tensioning mechanism (9) further comprises a connecting plate (93) and a screw rod (94); the screw rod (94) is rotatably connected between the upper and lower inner walls of the housing (1); the outer arc surface of the screw rod (94) is threadedly connected to the connecting plate (93); and the lower end of the slide plate (91) is fixedly connected to the connecting plate (93).

4. The slitting machine for packaging bag processing according to claim 3, characterized in that: The connecting plate (93) comprises a transverse plate (931), an internally threaded tube (932), a limiting ring (933) and a tension spring (934); the internally threaded tube (932) is threadedly connected to the outer arc surface of the screw rod (94); the outer arc surface of the internally threaded tube (932) is vertically slidably connected to the transverse plate (931); the lower ends of the slide plates (91) are fixedly connected to the transverse plate (931); a limiting ring (933) is provided at the upper end of the outer arc surface of the internally threaded tube (932); a tension spring (934) is provided between the limiting ring (933) and the transverse plate (931); and the tension spring (934) is movably sleeved on the outer arc surface of the internally threaded tube (932).

5. The slitting machine for packaging bag processing according to claim 4, characterized in that: The connecting plate (93) further comprises a slide groove (935), a limiting ball (936) and a spring (937); the slide grooves (935) are respectively arranged on the inner arc surface of the horizontal plate (931); the interior of the slide grooves (935) is slidably connected to the limiting ball (936); a spring (937) is arranged between the limiting ball (936) and the inner wall of the slide groove (935); the limiting ball (936) is mounted in cooperation with a groove on the outer arc surface of the internal threaded tube (932).

6. The slitting machine for packaging bag processing according to claim 3, characterized in that: The tensioning mechanism (9) further comprises an adjusting motor (95), wherein the adjusting motor (95) is arranged at the upper end of the housing (1), the output shaft of the adjusting motor (95) is fixedly connected to the screw rod (94), and the input end of the adjusting motor (95) is electrically connected to the output end of the single chip computer (10).

7. The slitting machine for packaging bag processing according to claim 1, characterized in that: The right side of the support frame plate (2) is provided with a motor 1 (11), the output shaft of the motor 1 (11) on the rear side is fixedly connected to the second rotating shaft of the winding roller (4), and the output shaft of the motor 1 (11) on the front side is fixedly connected to the first rotating shaft of the unwinding roller (3). The right side of the door frame (6) is provided with a motor 2 (12), the output shaft of the motor 2 (12) is fixedly connected to the third rotating shaft of the rotating column (7), and the input ends of the motor 1 (11) and the motor 2 (12) are both electrically connected to the output end of the single chip computer (10).

Images