Cutting device for paperboard production and processing

Abstract

The cutting device for paperboard production and processing comprises a base, a positioning mechanism and a cutting assembly are assembled on the base, a paper feeding mechanism is assembled at the front end of the base, the positioning mechanism comprises sliding rails which are symmetrically arranged, sliding seats are slidably connected to the sliding rails, positioning rolling wheels are symmetrically arranged on the upper surfaces of the sliding seats, and threaded sleeves are arranged on the lower surfaces of the sliding seats; a two-way threaded rod is in threaded connection with the threaded sleeve, a bearing seat is sleeved in the middle of the two-way threaded rod and fixed to the base, and a hand wheel is installed at one end of the two-way threaded rod. The two sides of the paperboard are restrained through the positioning rollers in the positioning mechanism, the positioning rollers are symmetrically arranged on the sliding seats capable of sliding, the positions of the sliding seats can be accurately adjusted through the two-way threaded rods according to the width of the paperboard, the positioning rollers continuously make contact with the two sides of the paperboard, the paperboard is stably restrained in the paper feeding process, and the paperboard feeding efficiency is improved. And the phenomenon that the paper board shakes or deviates due to hand shaking and non-uniform clamping force during manual clamping is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of cardboard processing, and in particular relates to a cutting device for cardboard production and processing. Background Art

[0002] Before the cardboard is put into use, it needs to be cut into the required size for use. During the process of the cutter cutting the cardboard, the pressure on the cardboard will cause the cardboard to deviate without external force. The deviation of the cardboard will cause the cut surface of the cardboard to have a rough surface, and the deviation of the cutting position will make it unusable in the future, and further increase the waste generation, resulting in waste of cardboard.

[0003] Chinese invention patent CN117774022A discloses a slitting machine for cardboard production, including a fixed base, a mounting frame fixedly connected to the fixed base, a slitting device fixedly connected to the upper part of the mounting frame, the slitting device including a mounting plate fixedly connected to the mounting frame, a hydraulic cylinder passing through the mounting plate, a slitting knife holder fixedly connected to the output end of the hydraulic cylinder, a slitting knife holder fixedly connected to the lower part of the slitting knife holder, a feeding frame slidably provided on the mounting frame, and also including a sensing unit and a fastening unit, a pushing mechanism is provided to cooperate with the sensing device to realize automatic control of the clamping mechanism, improve the stability of the slitting process, and at the same time, facilitate the clamping and fixing of cardboards of different sizes to improve the operating efficiency.

[0004] In the prior art, in order to prevent the pressure on the cardboard from causing the cardboard to deviate without being pressed by external force, a clamping mechanism is usually set to fix the cardboard. However, it is inconvenient to manually clamp and adjust the cardboard. When cutting cardboards of different sizes, the adjustment efficiency of the clamping mechanism is low. The reference document uses a sensing unit to control the fastening unit. Although this method is more intelligent than manual adjustment, it requires complex data processing and has low compatibility with general cutting devices. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In order to solve the problems raised in the above background technology, the present invention adopts the following technical solutions.

[0007] A cutting device for cardboard production and processing comprises a base, a positioning mechanism and a cutting component are mounted on the base, and a paper feeding mechanism is mounted at the front end of the base. The positioning mechanism comprises a slide rail symmetrically arranged, a slide seat is slidably connected to the slide rail, and positioning rollers are symmetrically arranged on the upper surface of the slide seat; The cutting assembly includes a gantry mounted on the upper surface of the base, and limit columns are symmetrically arranged on both sides of the gantry. A mounting plate is slidably connected to the limit columns. An extrusion knife is arranged at the rear end of the lower surface of the mounting plate. A hinged connecting rod is rotatably connected to the upper surface of the mounting plate. One end of the hinged connecting rod is connected to a first cylinder. The first cylinder is mounted on the upper surface of the gantry, and the other end of the hinged connecting rod is rotatably connected to the gantry. A supporting plate is arranged at the bottom of the gantry. The cardboard is transported toward the cutting assembly through the paper feeding mechanism. During the transportation process, the positioning rollers of the positioning mechanism contact the two sides of the cardboard to constrain the cardboard and prevent it from deflecting. When the cardboard is transported below the extrusion knife, the first cylinder pushes the mounting plate down so that the side of the extrusion knife contacts the end of the supporting plate to cut the cardboard.

[0008] A screw sleeve is provided on the lower surface of the slide seat, and a bidirectional threaded rod is threadedly connected to the screw sleeve. A bearing seat is centrally sleeved on the bidirectional threaded rod, and the bearing seat is fixed on the base. A hand wheel is installed at one end of the bidirectional threaded rod. According to the width of the cardboard, the hand wheel is turned to rotate the bidirectional threaded rod, and the slide seat sleeved on the bidirectional threaded rod moves relatively, so that the positioning roller contacts the side of the cardboard.

[0009] A plurality of transition rollers are also arranged on the base, one of which is installed at the front end of the positioning mechanism, and the other transition rollers are arranged above the positioning mechanism and between the positioning rollers.

[0010] A plurality of buffer springs are equidistantly arranged on the lower surface of the mounting plate and close to one end of the positioning mechanism. The mounting plate is connected to a pressure plate through the buffer springs. The pressure plate is located directly above the supporting plate. When the first cylinder pushes the mounting plate down, the pressure plate simultaneously descends close to the supporting plate to press the cardboard.

[0011] A cantilever is provided on the side of the gantry opposite to the positioning mechanism, a positioner is installed at the lower end of the cantilever, the positioner includes a machine cover, a positioning roller is installed inside the machine cover using a rotating shaft, a first transmission component is assembled on the outside of the positioner, and the output end of the first transmission component is sleeved on the end of the rotating shaft.

[0012] The paper feeding mechanism includes a bracket, the upper end of the bracket is rotatably connected to a driving roller, the driving roller protrudes from a side of the bracket, a second transmission assembly is installed on the side of the bracket, the output end of the second transmission assembly is socketed with the protruding end of the driving roller, a pressure roller is provided at the upper end of the bracket and above the driving roller, a second cylinder is installed on the upper surface of the bracket, a bearing is provided at the output end of the second cylinder, and both ends of the pressure roller are inserted into the bearings.

[0013] A plurality of groups of rollers are arranged on the upper surface of the bracket and at one end of the driving roller, and the curved surfaces of the rollers and the driving roller are at the same height.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention realizes the constraint on both sides of the cardboard through the positioning rollers in the positioning mechanism. The positioning rollers are symmetrically arranged on a slidable slide seat. The position of the slide seat can be accurately adjusted according to the width of the cardboard through a bidirectional threaded rod. The positioning rollers are in continuous contact with both sides of the cardboard, and the cardboard is stably constrained during the paper feeding process, thereby avoiding the shaking of the hands and the shaking or deviation of the cardboard caused by uneven clamping force due to manual clamping. At the same time, the structure of the device is relatively simple and direct, and does not require complex sensors and control systems to achieve positioning. Intelligent clamping positioning may be affected by factors such as sensor accuracy and algorithm error, while the mechanical structure of the device can continuously provide relatively stable positioning accuracy when working stably.

[0015] The positioning roller in the positioning mechanism of the present invention adapts to cardboards of different widths by sliding the slide on the slide rail, and the position of the slide is accurately controlled by the bidirectional threaded rod. Compared with manual positioning, it is more accurate and avoids errors caused by human operation. Furthermore, the mechanical positioning structure has good adaptability to cardboards of different materials and thicknesses. Intelligent clamping positioning requires complex parameter settings and algorithm adjustments based on different cardboard characteristics, while the positioning roller of the present device can position a variety of cardboards within a suitable spacing.

[0016] The pressure plate under the mounting plate of the present invention is synchronously lowered by the buffer spring to suppress the cardboard during cutting, and the supporting effect of the supporting plate makes the cardboard more stable during cutting, which helps to improve the cutting quality and reduce the roughness of the cutting edge. Furthermore, the driving roller and the pressure roller in the paper feeding mechanism cooperate, and the height of the pressure roller can be adjusted by the second cylinder to adapt to cardboards of different thicknesses. The driving roller is assisted by a supporting roller at one end, so that the cardboard can be transported stably and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure of the cutting device in the present invention Figure 1 .

[0018] Figure 2 The three-dimensional structure of the cutting device in the present invention Figure 2 .

[0019] Figure 3 The three-dimensional structure of the paper feeding mechanism in the present invention Figure 1 .

[0020] Figure 4 The three-dimensional structure of the paper feeding mechanism in the present invention Figure 2 .

[0021] Figure 5 This is an assembly diagram of the positioning mechanism and cutting components in the present invention.

[0022] Figure 6The three-dimensional structure of the positioning mechanism in the present invention Figure 1 .

[0023] Figure 7 The three-dimensional structure of the positioning mechanism in the present invention Figure 2 .

[0024] Figure 8 This is a structural diagram of the positioning components in the present invention.

[0025] Fig. 9 The three-dimensional structure of the cutting assembly in the present invention Figure 1 .

[0026] Fig.10 It is a side view of the cutting assembly in the present invention.

[0027] Fig.11 The three-dimensional structure of the cutting assembly in the present invention Figure 2 .

[0028] Fig.12 This is a structural diagram of the cutting unit in the present invention.

[0029] The corresponding relationship between the illustrations and component names in the figure is as follows: 100, base; 101, positioning mechanism; 1011, slide rail; 1012, slide seat; 1013, positioning roller; 1014, two-way threaded rod; 1015, hand wheel; 1016, bearing seat; 1017, transition roller; 102, cutting assembly; 1021, gantry; 1022, first cylinder; 1023, hinged connecting rod; 1024, mounting plate; 1025, pressing plate; 1026, extrusion knife; 1027, supporting plate; 1028, limiting column; 1029, positioner; 10291, machine cover; 10292, positioning roller; 10293, first transmission assembly; 200, paper feeding mechanism; 201, bracket; 202, driving roller; 2021, second transmission assembly; 203, pressure roller; 2031, second cylinder; 2204, supporting roller. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0033] See also Figure 1 , Figure 2 as well as Figure 5 The cutting device for cardboard production and processing of this embodiment includes a base 100, a positioning mechanism 101 and a cutting assembly 102 are mounted on the base 100, and a paper feeding mechanism 200 is mounted at the front end of the base 100. Fig. 9 and Fig.12 The cutting assembly 102 includes a gantry 1021 mounted on the upper surface of the base 100, and the gantry 1021 has limit columns 1028 symmetrically arranged on both sides thereof, a mounting plate 1024 is slidably connected to the limit columns 1028, a squeeze knife 1026 is arranged at the rear end of the lower surface of the mounting plate 1024, and an articulated connecting rod 1023 is rotatably connected to the upper surface of the mounting plate 1024, and one end of the articulated connecting rod 1023 is connected to a first cylinder 1022, and the first cylinder 1022 is mounted on the upper surface of the gantry 1021. The other end of the hinged connecting rod 1023 is rotatably connected to the gantry 1021. A supporting plate 1027 is provided at the bottom of the gantry 1021. In this embodiment, the cardboard is transported toward the cutting assembly 102 through the paper feeding mechanism 200. During the transportation process, the cardboard is constrained by the positioning mechanism 101 to prevent deviation. When the cardboard is transported below the squeezing knife 1026, the first cylinder 1022 pushes the mounting plate 1024 down so that the side of the squeezing knife 1026 contacts the end of the supporting plate 1027 to cut the cardboard.

[0034] See also Figure 6-8The positioning mechanism 101 in this embodiment includes a slide rail 1011 symmetrically arranged, a slide seat 1012 is slidably connected to the slide rail 1011, a positioning roller 1013 is symmetrically arranged on the upper surface of the slide seat 1012, a screw sleeve is arranged on the lower surface of the slide seat 1012, a bidirectional threaded rod 1014 is threadedly connected to the screw sleeve, a bearing seat 1016 is centrally sleeved on the bidirectional threaded rod 1014, the bearing seat 1016 is fixed on the base 100, and a hand wheel 1015 is installed at one end of the bidirectional threaded rod 1014. In this embodiment, in actual use, the cardboard is transported toward the cutting assembly 102 through the paper feeding mechanism 200. When the cardboard reaches the position of the positioning mechanism 101, the hand wheel 1015 is manually rotated according to the width of the cardboard, and the hand wheel 1015 drives the bidirectional threaded rod 1014 to rotate. The thread on the bidirectional threaded rod 1014 is actually provided with two sections, starting from the center of the bidirectional threaded rod 1014 and extending to both ends. The two sections of the thread are extended, and the spiral directions of the two sections of the thread are opposite. When the two-way threaded rod 1014 rotates, the slide 1012 sleeved on the two-way threaded rod 1014 moves relatively, thereby controlling the distance between the two slides 1012, and the positioning rollers 1013 on the slide 1012 contact the side of the paperboard to realize the constraint of the paperboard; in this embodiment, the positioning rollers 1013 of the positioning mechanism 101 are used to realize the constraint of the two sides of the paperboard, and the positioning rollers 1013 are symmetrically arranged on the slidable slide 1012. The position of the slide 1012 can be accurately adjusted according to the width of the paperboard through the two-way threaded rod 1014. The positioning rollers 1013 are continuously in contact with the two sides of the paperboard, and the paperboard is stably constrained during the paper feeding process, avoiding the shaking of the hands and the shaking or deviation of the paperboard caused by uneven clamping force when manually clamping. At the same time, the structure of the device is relatively simple and direct, and does not require complex sensors and control systems to realize positioning; continue to refer to Figure 6 and Figure 7 In this embodiment, a plurality of transition rollers 1017 are provided on the base 100, one of which is installed at the front end of the positioning mechanism 101, and the other transition rollers 1017 are mounted above the positioning mechanism 101 and between the positioning rollers 1013. The cardboard is supported by the transition rollers 1017 to prevent the cardboard from bending.

[0035] See also Fig. 9 and Fig.11A plurality of buffer springs are equidistantly arranged on the lower surface of the mounting plate 1024 and at one end close to the positioning mechanism 101. The mounting plate 1024 is connected to a pressing plate 1025 through the buffer springs. The pressing plate 1025 is located directly above the supporting plate 1027. In this embodiment, when the mounting plate 1024 is pushed down by the first cylinder 1022, the pressing plate 1025 is synchronously dropped close to the supporting plate 1027 to press the cardboard. When cutting, the pressing plate 1025 is synchronously dropped through the buffer springs to press the cardboard. In addition, the supporting effect of the supporting plate 1027 makes the cardboard more stable during cutting, which helps to improve the cutting quality and reduce the roughness of the cutting edge.

[0036] See also Fig.10 A cantilever is provided on the side of the gantry 1021 opposite to the positioning mechanism 101, and a positioner 1029 is installed at the lower end of the cantilever. The positioner 1029 includes a machine cover 10291, and a positioning roller 10292 is installed in the machine cover 10291 by a rotating shaft. A first transmission component 10293 is assembled on the outer side of the positioner 1029, and the output end of the first transmission component 10293 is sleeved on the end of the rotating shaft. The positioner 1029 in this embodiment plays a role in further positioning and pushing the cardboard, and its rotation frequency should be the same as the rotation frequency of the paper feeding mechanism 200, so as to ensure that the cardboard can be stably and uniformly transported toward the cutting component 102; It is worth noting that see Fig. 9 In this embodiment, a telescopic cylinder is installed on the cantilever, and the positioner 1029 is connected to the output end of the telescopic cylinder. The height of the positioner 1029 is controlled by the telescopic cylinder to ensure that the positioning roller 10292 is in contact with the surface of the paperboard. When the positioning roller 10292 is driven to rotate by the first transmission assembly 10293, the paperboard is forced to move forward through rolling friction.

[0037] See also Figure 3 and Figure 4 The paper feeding mechanism 200 includes a bracket 201, the upper end of the bracket 201 is rotatably connected to a driving roller 202, the driving roller 202 protrudes from the side of the bracket 201, and a second transmission component 2021 is installed on the side of the bracket 201. The output end of the second transmission component 2021 is sleeved with the protruding end of the driving roller 202. A pressing roller 203 is provided at the upper end of the bracket 201 and above the driving roller 202. A second cylinder 2031 is installed on the upper surface of the bracket 201, and a bearing is provided at the output end of the second cylinder 2031. Both ends of the pressing roller 203 are inserted into the bearings. In this embodiment, the second transmission component 2021 drives the driving roller 202 to rotate, and synchronously controls the height of the pressing roller 203 through the second cylinder 2031 to ensure that the pressing roller 203 can contact the surface of the paperboard, thereby cooperating with the driving roller 202 to make the paperboard move forward, so as to realize the paper feeding mechanism 200 to transport the paperboard.

[0038] The cardboard needs to enter the paper feeding mechanism 200 in a smooth state. If the position of the cardboard is too high or too low, it will be broken by the pressing roller 203 when entering the paper feeding mechanism 200. Therefore, in this embodiment, a plurality of groups of rollers 2204 are provided on the upper surface of the bracket 201 and at one end of the driving roller 202, and the curved surface of the roller 2204 is at the same height as the curved surface of the driving roller 202. The cardboard is supported by the roller 2204 to ensure that the cardboard can smoothly enter the paper feeding mechanism 200.

[0039] The first transmission component 10293 and the second transmission component 2021 in this embodiment have the same structure, and are composed of a driver, a pulley and a belt. This transmission method is a prior art, so the specific structure is not disclosed in this embodiment, and it can be intuitively obtained through the accompanying drawings.

[0040] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the protection scope determined by the claims submitted for the present invention.

Claims

1. A cutting device for cardboard production and processing, comprising a base (100), wherein a positioning mechanism (101) and a cutting assembly (102) are mounted on the base (100), and a paper feeding mechanism (200) is mounted at the front end of the base (100). Features: The positioning mechanism (101) comprises a slide rail (1011) symmetrically arranged, a slide seat (1012) being slidably connected to the slide rail (1011), and positioning rollers (1013) being symmetrically arranged on the upper surface of the slide seat (1012); The cutting assembly (102) comprises a gantry (1021) mounted on the upper surface of the base (100), limiting columns (1028) are symmetrically arranged on both sides of the gantry (1021), a mounting plate (1024) is slidably connected to the limiting columns (1028), a squeezing knife (1026) is arranged at the rear end of the lower surface of the mounting plate (1024), a hinged connecting rod (1023) is rotatably connected to the upper surface of the mounting plate (1024), one end of the hinged connecting rod (1023) is connected to a first cylinder (1022), the first cylinder (1022) is mounted on the upper surface of the gantry (1021), the other end of the hinged connecting rod (1023) is rotatably connected to the gantry (1021), and a supporting plate (1027) is arranged at the bottom of the gantry (1021); The cardboard is transported toward the cutting assembly (102) through the paper feeding mechanism (200). During the transport process, the positioning rollers (1013) of the positioning mechanism (101) contact both sides of the cardboard to constrain the cardboard and prevent it from deflecting. When the cardboard is transported below the squeezing knife (1026), the first cylinder (1022) pushes the mounting plate (1024) downward so that the side of the squeezing knife (1026) contacts the end of the supporting plate (1027) to cut the cardboard.

2. The cutting device for cardboard production and processing according to claim 1, characterized in that: A screw sleeve is provided on the lower surface of the slide seat (1012), a bidirectional threaded rod (1014) is threadedly connected to the screw sleeve, a bearing seat (1016) is sleeved centrally on the bidirectional threaded rod (1014), the bearing seat (1016) is fixed on the base (100), a hand wheel (1015) is installed at one end of the bidirectional threaded rod (1014), and the hand wheel (1015) is rotated according to the width of the cardboard to rotate the bidirectional threaded rod (1014), and the slide seat (1012) sleeved on the bidirectional threaded rod (1014) moves relatively, so that the positioning roller (1013) contacts the side surface of the cardboard.

3. The cutting device for cardboard production and processing according to claim 2, characterized in that: The base (100) is further provided with a plurality of transition rollers (1017), wherein one transition roller (1017) is mounted at the front end of the positioning mechanism (101), and the remaining transition rollers (1017) are mounted above the positioning mechanism (101) and between the positioning rollers (1013).

4. The cutting device for cardboard production and processing according to claim 1, characterized in that: A plurality of buffer springs are equidistantly arranged on the lower surface of the mounting plate (1024) and at one end close to the positioning mechanism (101); the mounting plate (1024) is connected to a pressing plate (1025) via the buffer springs; the pressing plate (1025) is located directly above the supporting plate (1027); when the first cylinder (1022) pushes the mounting plate (1024) downward, the pressing plate (1025) simultaneously descends close to the supporting plate (1027) to press the cardboard.

5. The cutting device for cardboard production and processing according to claim 1, characterized in that: A cantilever is provided on the side of the gantry (1021) opposite to the positioning mechanism (101), a positioner (1029) is installed at the lower end of the cantilever, the positioner (1029) comprises a hood (10291), a positioning roller (10292) is installed in the hood (10291) by means of a rotating shaft, a first transmission assembly (10293) is mounted on the outer side of the positioner (1029), and an output end of the first transmission assembly (10293) is sleeved on the end of the rotating shaft.

6. The cutting device for cardboard production and processing according to claim 1, characterized in that: The paper feeding mechanism (200) comprises a bracket (201), the upper end of the bracket (201) is rotatably connected to a driving roller (202), the driving roller (202) protrudes from a side of the bracket (201), a second transmission assembly (2021) is mounted on the side of the bracket (201), the output end of the second transmission assembly (2021) is sleeved with the protruding end of the driving roller (202), a pressure roller (203) is arranged at the upper end of the bracket (201) and above the driving roller (202), a second cylinder (2031) is mounted on the upper surface of the bracket (201), a bearing is arranged at the output end of the second cylinder (2031), and both ends of the pressure roller (203) are inserted into the bearings.

7. The cutting device for cardboard production and processing according to claim 6, characterized in that: A plurality of groups of rollers (2204) are provided on the upper surface of the support (201) and located at one end of the driving roller (202), and the curved surfaces of the rollers (2204) and the driving roller (202) are at the same height.

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