Packaging paper cutting mechanism

Abstract

The utility model discloses a packaging paper cutting mechanism which comprises a box body, a paper winding roller installation frame, a paper winding roller, a connecting frame, a plurality of tensioning rollers, a lifting motor and a cutting mechanism, a first support and a second support are arranged on the top of the box body, the first support is fixed to the end, close to the connecting frame, of the box body, and guide rails are arranged on the two sides of the top of the box body. The second support is slidably connected with the box body through the guide rail. According to the structure, after roll paper is pulled out of the paper winding roller, the front-back transverse movement of the second support can be adjusted by rotating the screw rod, the distance between the two tensioning rollers is changed, the tension force of the paper is adjusted, and when the paper is conveyed to the bottom of the mounting frame along the moving belt, different corresponding cutting modes can be selected for machining according to the paper cutting requirement; edge sealing processing is facilitated when the paper is subsequently manufactured into a packaging box, and the paper cutting mode is not limited to single cutting.

Description

Technical Field

[0001] This utility model relates to the field of paper cutting technology, specifically a packaging paper cutting mechanism. Background Technology

[0002] Paper packaging is frequently used in food packaging. Paper packaging products are made primarily from pulp and paperboard, using raw materials such as wood and bamboo, which are harvestable and renewable plant materials; reeds, sugarcane bagasse, cotton stalks, and wheat straw are rural waste. These are all renewable and reusable resources. Plastic packaging, on the other hand, ultimately consumes petroleum, a non-renewable resource. Therefore, compared to plastic and other packaging materials, paper packaging has a greater advantage in resource utilization.

[0003] For products of different sizes, packaging paper needs to be cut to facilitate the subsequent production of packaging boxes. During the cutting process, a whole section of paper is usually wound onto a roller and cut into pieces by a cutter. During the winding process, tension rollers are used to adjust the paper tension to keep the roll of paper stable during the winding and conveying process. Usually, the tension rollers are adjusted by bolts, which requires adjusting the bolts on different tension rollers one by one, which is inconvenient. Moreover, when the paper is cut by the cutter, it can only be cut into pieces, and the paper cutting method is relatively simple. It is not possible to cut grooves in the paper, which limits the subsequent processing of the paper into packaging boxes. Therefore, this solution provides a packaging paper cutting mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a packaging paper cutting mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a packaging paper cutting mechanism, comprising a box body, a paper roll mounting frame, a paper roll, a connecting frame, several tensioning rollers, a lifting motor, and a cutting mechanism. A connecting frame is installed at one end of the back of the box body, and a paper roll mounting frame is fixed on the back of the connecting frame. A paper roll and a paper roll drive motor are provided on the paper roll mounting frame. Two horizontal guide rollers are fixedly installed inside the connecting frame. A first bracket and a second bracket are provided on the top of the box body. The first bracket is fixed at one end of the box body near the connecting frame. Guide rails are provided on both sides of the top of the box body. The second bracket is slidably connected to the box body through the guide rails. Tensioning rollers are installed at the bottom of both the first bracket and the second bracket.

[0006] A frame is fixedly installed at the front edge of the top of the box, a lifting motor is fixedly installed at the center of the frame, and a cutting mechanism is connected to the bottom of the lifting motor.

[0007] The cutting mechanism includes a mounting frame, a transverse cutter, an electric push rod, a longitudinal cutter, and a spring. The transverse cutter is embedded in the bottom surface of the mounting frame. Vertical electric push rods are fixedly mounted on the left and right sides of the mounting frame via brackets. The bottom of the electric push rod is connected to the longitudinal cutter via a telescopic shaft. A spring is sleeved on the telescopic shaft at the bottom of the electric push rod.

[0008] A motion belt is provided on the surface of the box, and several parallel transmission rollers are built inside the motion belt. The front end of the conveyor belt is located on the outer front end of the box. A transmission roller drive motor is installed on the outer side of the transmission roller at the front end of the motion belt. The multiple transmission rollers are connected by staggered transmission belts.

[0009] The first bracket has a built-in rotating screw, one end of which is connected to the second bracket.

[0010] Preferably, a PLC controller is provided on the outer side of the housing, and a paper collection trough is provided at the bottom front end of the moving belt.

[0011] Preferably, the second bracket adjusts the distance between itself and the first bracket by rotating a screw, thereby adjusting the distance between the tension roller at the bottom of the first bracket and the tension roller at the bottom of the second bracket.

[0012] Preferably, the horizontal height of the transverse cutter is lower than that of the longitudinal cutter. When the electric push rod drives the longitudinal cutter to move downward, the horizontal height of the longitudinal cutter is lower than that of the transverse cutter.

[0013] Preferably, the paper roll on the paper roll passes sequentially through two guide rollers in the connecting frame and the tension rollers at the bottom of the first and second supports before landing on the surface of the moving belt.

[0014] Beneficial effects

[0015] This utility model provides a packaging paper cutting mechanism, which has the following beneficial effects:

[0016] In this structure, after the paper roll is pulled out from the roll roller, the second bracket can be moved forward and backward by rotating the screw to change the distance between the two tension rollers and adjust the paper tension. When the paper is conveyed to the bottom of the mounting frame along the moving belt, the transverse cutter can be selected to cut the paper into sections as needed, or the longitudinal cutter can be moved downward by controlling the electric push rod, and the longitudinal cutter will sequentially cut grooves on the left and right sides of the paper during the movement. Different cutting methods can be selected according to the paper cutting needs, which is convenient for the edge sealing processing when the paper is made into packaging boxes. This makes the paper cutting method not limited to a single block cutting. Attached Figure Description

[0017] Figure 1This is a structural diagram of the present invention.

[0018] Figure 2 A magnified view of the sliding connection between the second support and the housing;

[0019] Figure 3 This is an assembly structure diagram of the transverse cutter, longitudinal cutter, and mounting bracket of this utility model;

[0020] Figure 4 This is a partially enlarged schematic diagram showing the connection between adjacent drive rollers via a drive belt.

[0021] In the diagram: 1. Housing; 2. Paper roll mounting bracket; 3. Paper roll; 4. Connecting bracket; 5. Tensioning roll; 6. Lifting motor; 7. Paper roll drive motor; 8. Guide roller; 9. First bracket; 10. Second bracket; 11. Guide rail; 12. Platform; 13. Mounting bracket; 14. Transverse cutter; 15. Electric push rod; 16. Longitudinal cutter; 17. Motion belt; 18. Transmission roller; 19. Transmission roller drive motor; 20. Transmission belt; 21. PLC controller; 22. Rotating screw; 23. Spring component. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a packaging paper cutting mechanism, including a box body 1, a paper roll mounting frame 2, a paper roll 3, a connecting frame 4, several tension rollers 5, a lifting motor 6, and a cutting mechanism. The connecting frame 4 is installed at one end of the back of the box body 1. The paper roll mounting frame 2 is fixed on the back of the connecting frame 4. The paper roll 3 and the paper roll drive motor 7 are arranged on the paper roll mounting frame 2. Two horizontal guide rollers 8 are fixedly installed inside the connecting frame 4. The top of the box body 1 is provided with a first bracket 9 and a second bracket 10. The first bracket 9 is fixed at one end of the box body 1 near the connecting frame 4. Guide rails 11 are arranged on both sides of the top of the box body 1. The second bracket 10 is slidably connected to the box body 1 through the guide rails 11. Tension rollers 5 are installed at the bottom of both the first bracket 9 and the second bracket 10.

[0024] A frame 12 is fixedly installed at the front edge of the top of the box 1, and a lifting motor 6 is fixedly installed at the center of the frame 12. A cutting mechanism is connected to the bottom of the lifting motor 6.

[0025] The cutting mechanism includes a mounting frame 13, a transverse cutter 14, an electric push rod 15, a longitudinal cutter 16, and a spring element 23. The transverse cutter 14 is embedded in the bottom surface of the mounting frame 13. The left and right sides of the mounting frame 13 are fixedly mounted with vertical electric push rods 15 by brackets. The bottom of the electric push rod 15 is connected to the longitudinal cutter 16 through a telescopic shaft. A spring element 23 is sleeved on the telescopic shaft at the bottom of the electric push rod 15.

[0026] A motion belt 17 is provided on the surface of the housing 1. Several parallel transmission rollers 18 are built inside the motion belt 17. The front end of the conveyor belt 17 is located on the outer side of the front end of the housing 1. A transmission roller drive motor 19 is installed on the outer side of the transmission rollers 18 at the front end of the motion belt 17. The multiple transmission rollers 18 are connected by staggered transmission belts 20.

[0027] The first bracket 9 has a built-in rotating screw 22, one end of which is connected to the second bracket 10.

[0028] A PLC controller 21 is installed on the outer side of the housing 1. A paper collection trough is installed at the bottom front end of the motion belt 17. After the paper is cut, it can fall into the paper collection trough under the conveying action of the motion belt 17, which facilitates the stacking and collection of paper.

[0029] The second support 10 adjusts the distance between itself and the first support 9 by rotating the screw 22, thereby adjusting the distance between the tension roller 5 at the bottom of the first support 9 and the tension roller 5 at the bottom of the second support 10. When the screw 22 is manually rotated by holding the handle near the end of the first support 9, the second support 10 can be moved back and forth on the top of the box 1 to adjust the tension of the paper when it passes the tension roller 5.

[0030] The horizontal height of the transverse cutter 14 is lower than that of the longitudinal cutter 16. When the electric push rod 15 drives the longitudinal cutter 16 to move downward, the horizontal height of the longitudinal cutter 16 is lower than that of the transverse cutter 14. Under normal conditions, after the mounting frame 13 moves downward, the paper can be directly cut into segments by the transverse cutter 14 installed at the bottom of the mounting frame 13. When it is necessary to cut the left and right edges of the paper, the two electric push rods 15 on the left and right sides of the mounting plate 13 control the longitudinal cutter 16 to move downward, so that the bottom surface of the longitudinal cutter 16 is lower than the bottom surface of the transverse cutter 14. The left and right longitudinal cutters 16 can cut the left and right sides of the paper along the length of the paper, which is convenient for cutting grooves on the left and right sides of the paper and for subsequent edge sealing processing during packaging.

[0031] The paper roll on the paper roll 3 passes through the two guide rollers 8 in the connecting frame 4 and the tension rollers 5 at the bottom of the first support 9 and the second support 10 before landing on the surface of the moving belt 17. After being pulled out from the paper roll 3, the paper roll passes through the two guide rollers 8 and the two tension rollers 5 before landing on the moving belt 17 on the surface of the housing 1.

[0032] Working principle:

[0033] PLC controller 21 controls the operation of lifting motor 6, paper roll drive motor 7, electric push rod 15, and transmission roller drive motor 19 respectively.

[0034] The entire structure consists of a housing 1, a paper roll section, a tension roll section, and a cutting section. In the paper roll section, the paper roll 3 is driven by the paper roll drive motor 7 on the outside of the paper roll 3. The paper wound on the paper roll 3 falls down first, passing over the upper surface of the first guide roller 8 near the paper roll 3 on the connecting frame 4, then passing over the lower surface of the second guide roller 8 inside the connecting frame 4, then passing over the upper surface of the tension roller 5 at the bottom of the first bracket 9, then passing over the lower surface of the tension roller 5 at the bottom of the second bracket 10, and finally landing on the surface of the moving belt 17.

[0035] In the tension roller section, tension rollers 5 are installed at two locations: a first support 9 and a second support 10. The first support 9 and the housing 1 are fixed structures. The second support 10 and the housing 1 are connected by a guide rail 11 for lateral sliding. The first support 9 and the second support 10 are connected by a rotating screw 22. The end of the rotating screw 22 near the first support 9 has a handle. The rotating screw 22 and the first support 9 are threaded together, and the rotating screw 22 and the second support 10 are rotatably connected. By manually holding the handle and rotating the rotating screw 22, the second support 10 is driven to move laterally back and forth on the top of the housing 1. The guide rail 11 provides stable guidance and allows the second support 10 to adjust the distance between itself, the first support 9, and the cutting mechanism, thereby adjusting the tension of the paper as it passes the bottom tension rollers 5 of the first support 9 and the second support 10.

[0036] After passing the tension roller 5 at the bottom of the second support 10, the paper falls onto the moving belt 17. The transmission roller drive motor 19 drives the transmission roller 18 at the front end of the moving belt 17 to rotate. One side of the remaining multiple transmission rollers 18 protrudes from the outside of the box 1. The multiple transmission rollers 18 are synchronously driven by the interleaved transmission belts 20, so that the moving belt 17 circulates in the box 1.

[0037] As the paper moves forward via the motion belt 17, the lifting motor 6 drives the mounting frame 13 to move downward. When the paper needs to be cut horizontally, the horizontal cutter 14 can directly cut the paper on the surface of the bottom motion belt 17, thus cutting the paper into segments. When the left and right sides of the paper need to be cut, the two electric push rods 15 on the left and right sides of the mounting frame 13 work simultaneously to drive the vertical cutter 16 to move downward, so that the two vertical cutters 16 can cut grooves on the left and right sides of the paper, forming grooves on the left and right edges of the paper, which is convenient for sealing the paper when it is used as a packaging box. Different cutting methods can be selected to cut the paper. The cut paper falls into the paper collection trough at the front end under the action of the motion belt 17.

[0038] During the above-mentioned cutting process, the mounting frame 13 is repeatedly moved up and down by the lifting motor 6, so that the paper is cut into pieces or the left and right sides of the paper form grooves with equal spacing. When the paper is dropped, the pieces of paper fall into the paper collection groove one by one. When longitudinal cutting is selected, the strip of paper with several equally spaced grooves on the left and right sides falls into the paper collection groove. Different cutting methods can be selected according to the paper cutting needs.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A packaging paper cutting mechanism, comprising a box body (1), a paper roll mounting frame (2), a paper roll (3), a connecting frame (4), a plurality of tensioning rollers (5), a lifting motor (6), and a cutting mechanism, characterized in that, A connecting frame (4) is installed on one end of the back of the box (1). A paper roll mounting frame (2) is fixed on the back of the connecting frame (4). A paper roll (3) and a paper roll drive motor (7) are provided on the paper roll mounting frame (2). Two horizontal guide rollers (8) are fixedly installed inside the connecting frame (4). A first bracket (9) and a second bracket (10) are provided on the top of the box (1). The first bracket (9) is fixed at one end of the box (1) near the connecting frame (4). Guide rails (11) are provided on both sides of the top of the box (1). The second bracket (10) is slidably connected to the box (1) through the guide rails (11). Tensioning rollers (5) are installed at the bottom of both the first bracket (9) and the second bracket (10). A frame (12) is fixedly installed at the front edge of the top of the box (1), and a lifting motor (6) is fixedly installed at the center of the frame (12). A cutting mechanism is connected to the bottom of the lifting motor (6). The cutting mechanism includes a mounting frame (13), a transverse cutter (14), an electric push rod (15), a longitudinal cutter (16), and a spring (23). The transverse cutter (14) is embedded in the bottom surface of the mounting frame (13). The left and right sides of the mounting frame (13) are fixedly mounted with vertical electric push rods (15) by brackets. The bottom of the electric push rod (15) is connected to the longitudinal cutter (16) through a telescopic shaft. A spring (23) is sleeved on the telescopic shaft at the bottom of the electric push rod (15). A motion belt (17) is provided on the surface of the box (1). Several parallel transmission rollers (18) are built inside the motion belt (17). The front end of the motion belt (17) is located outside the front end of the box (1). A transmission roller drive motor (19) is installed outside the transmission rollers (18) at the front end of the motion belt (17). The multiple transmission rollers (18) are connected to each other by staggered transmission belts (20). The first bracket (9) has a built-in rotating screw (22), one end of which is connected to the second bracket (10).

2. The packaging paper cutting mechanism according to claim 1, characterized in that: A PLC controller (21) is provided on the outer side of the housing (1), and a paper collection slot is provided at the bottom front end of the motion belt (17).

3. The packaging paper cutting mechanism according to claim 1, characterized in that: The second bracket (10) adjusts the distance between itself and the first bracket (9) by rotating the screw (22), thereby adjusting the distance between the tension roller (5) at the bottom of the first bracket (9) and the tension roller (5) at the bottom of the second bracket (10).

4. The packaging paper cutting mechanism according to claim 1, characterized in that: The horizontal height of the transverse cutter (14) is lower than that of the longitudinal cutter (16). When the electric push rod (15) drives the longitudinal cutter (16) to move downward, the horizontal height of the longitudinal cutter (16) is lower than that of the transverse cutter (14).

5. The packaging paper cutting mechanism according to claim 1, characterized in that: The paper roll on the paper roll (3) passes sequentially through the two guide rollers (8) in the connecting frame (4) and the tension roller (5) at the bottom of the first bracket (9) and the second bracket (10) before landing on the surface of the moving belt (17).

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