阅读说明：本技术 蜂窝芯切纸机 (Honeycomb core paper cutter ) 是由 周铭 周建新 唐瑶 张晓敏 于 2021-08-05 设计创作，主要内容包括：本发明提供一种蜂窝芯切纸机,包括机架、牵引机构、导料机构、定长送料机构、裁切机构、升降平台机构；所述牵引机构安装在机架的后侧顶部,用于将多层复合蜂窝原纸向导料机构牵引输送；所述导料机构安装在机架上,位于牵引机构前侧,用于将多层复合蜂窝原纸导向定长送料机构；所述定长送料机构安装于机架前侧,位于导料机构的下游,用于将多层复合蜂窝原纸以垂直于水平切纸方向的方向向裁切机构中的切纸位置输送；定长送料机构每次输送设定长度的多层复合蜂窝原纸；所述裁切机构安装在机架,其切纸位置位于定长送料机构垂直向下的输送方向上,用于将多层复合蜂窝原纸P切成定长度的纸段,并将切好的纸段依次向前挤压推送；本发明裁切速度快自动化程度高。(The invention provides a honeycomb core paper cutting machine which comprises a rack, a traction mechanism, a material guide mechanism, a fixed-length feeding mechanism, a cutting mechanism and a lifting platform mechanism, wherein the rack is arranged on the rack; the traction mechanism is arranged at the top of the rear side of the rack and used for carrying the multilayer composite honeycomb base paper to the guide mechanism in a traction manner; the material guide mechanism is arranged on the rack, is positioned on the front side of the traction mechanism and is used for guiding the multilayer composite honeycomb base paper to the fixed-length feeding mechanism; the fixed-length feeding mechanism is arranged on the front side of the rack, is positioned at the downstream of the material guide mechanism and is used for conveying the multilayer composite honeycomb base paper to a paper cutting position in the cutting mechanism in a direction perpendicular to the horizontal paper cutting direction; the fixed-length feeding mechanism conveys the multilayer composite honeycomb base paper with the set length each time; the cutting mechanism is arranged on the rack, the paper cutting position of the cutting mechanism is positioned in the vertical downward conveying direction of the fixed-length feeding mechanism, and the cutting mechanism is used for cutting the multilayer composite honeycomb base paper P into paper sections with fixed length and sequentially extruding and pushing the cut paper sections forwards; the invention has fast cutting speed and high automation degree.)

1. A honeycomb core paper cutting machine is characterized by comprising a rack (1), a traction mechanism (2), a material guide mechanism (3), a fixed-length feeding mechanism (5), a cutting mechanism (6) and a lifting platform mechanism (7);

the traction mechanism (2) is arranged at the top of the rear side of the rack (1) and is used for dragging and conveying the multilayer composite honeycomb base paper (P) to the material guide mechanism (3);

the material guide mechanism (3) is arranged on the rack (1), is positioned on the front side of the traction mechanism (2), and is used for guiding the multilayer composite honeycomb base paper (P) to the fixed-length feeding mechanism (5);

the fixed-length feeding mechanism (5) is arranged on the front side of the rack (1), is positioned at the downstream of the material guide mechanism (3), and is used for conveying the multilayer composite honeycomb base paper (P) to a paper cutting position in the cutting mechanism (6) in a direction perpendicular to the horizontal paper cutting direction; the fixed-length feeding mechanism (5) conveys the multilayer composite honeycomb base paper (P) with the set length each time;

the cutting mechanism (6) is arranged on the rack (1), the paper cutting position of the cutting mechanism is positioned in the vertical downward conveying direction of the fixed-length feeding mechanism (5), and the cutting mechanism is used for cutting the multilayer composite honeycomb base paper (P) into paper sections (P ') with fixed length and sequentially extruding and pushing the cut paper sections (P') forwards;

the lifting platform mechanism (7) is installed on the front side of the rack (1) and located below the fixed-length feeding mechanism (5), and the lifting platform mechanism (7) is used for bearing multi-layer composite honeycomb base paper (P) which is descended and conveyed in place and is used for bearing cut paper sections (P') which are arranged in a front-back mutual extrusion mode.

2. The honeycomb core cutter of claim 1,

the traction mechanism (2) comprises a traction roller (201), a first pressure roller set (202), a traction driving unit (203) and a turnover driving unit (204);

the first pressing wheel group (202) comprises a plurality of first pressing wheels (2021) which are transversely arranged at intervals, each first pressing wheel (2021) in the first pressing wheel group (202) is arranged on a pressing wheel shaft (2022), the pressing wheel shaft (2022) and the traction roller (201) are arranged on the top of the rear side of the rack (1) in parallel, and each first pressing wheel (2021) in the first pressing wheel group (202) is positioned above the traction roller (201); the traction roller (201) is driven by a traction driving unit (203) arranged on one side of the frame (1); the first pressing wheel set (202) is turned over through a turning driving unit (204) arranged on one side of the rack (1).

3. The honeycomb core cutter of claim 2,

the traction mechanism (2) further comprises a traction auxiliary roller (205); the traction auxiliary roller (205) is arranged on the frame (1), is parallel to the traction roller (201) and is positioned behind the traction roller (201).

4. The honeycomb core cutter of claim 1,

the material guide mechanism (3) comprises a plurality of arc-shaped guide rails (301) which are arranged in parallel at intervals, and each arc-shaped guide rail (301) is arranged on the rack (1) through an upper transverse rail (302) and a lower transverse rail (303); the upper end of the arc-shaped guide rail (301) is opposite to the traction mechanism (2), and the lower end of the arc-shaped guide rail (301) extends to the fixed-length feeding mechanism (5).

5. The honeycomb core cutter of claim 4,

each arc-shaped guide rail (301) is respectively connected with connecting pieces on the upper transverse rail (302) and the lower transverse rail (303) through screws, and two ends of the lower transverse rail (303) are connected with the frame (1) through adjusting screw rods (304).

6. The honeycomb core cutter of claim 4,

the front side of the arc-shaped guide rail (301) is also provided with a front stop rail (305); the gap between the lower end of the front baffle rail (305) and the lower end of the arc-shaped guide rail (301) is aligned with the feeding position in the fixed-length feeding mechanism (5).

7. The honeycomb core cutter according to claim 4, 5 or 6,

the automatic cloth feeding machine is characterized by further comprising a distance measuring mechanism (4), wherein the distance measuring mechanism (4) is used for detecting the arching degree of the multilayer composite honeycomb base paper (P) on the material guide mechanism (3), so that the controller can adjust the proper traction speed of the traction mechanism (2) according to the arching degree.

8. The honeycomb core cutter of claim 7,

the ranging mechanism (4) comprises a ranging sensor (401), and the ranging sensor (401) is arranged behind and below a gap between the arc-shaped guide rails (301).

9. The honeycomb core cutter according to claim 4, 5 or 6,

the fixed-length feeding mechanism (5) comprises a feeding servo motor (501), a feeding roller (502) and a second pressing wheel set (503), wherein the second pressing wheel set (503) comprises a plurality of second pressing wheels (5031) arranged at intervals; the feeding servo motor (501) is connected with a speed reducer and is connected with the feeding roller (502) through a coupler; the feeding roller (502) is arranged on the front side of the frame (1) and is positioned below the front end of the material guide mechanism (3); each second pinch roller (5031) is arranged on the front side of the feeding roller (502), and the second pinch rollers are driven by a pinch roller driving mechanism to approach or separate from the feeding roller (502); a feeding position in the fixed-length feeding mechanism (5) is arranged above the position between the feeding roller (502) and the second pressing wheel (5031) and is opposite to the lower end of the material guide mechanism (3); the lower part between the feeding roller (502) and the second pressing wheel (5031) is the conveying direction of the fixed-length feeding mechanism (5), and when the second pressing wheel (5031) contacts the multilayer composite honeycomb base paper (P) between the second pressing wheel (5031) and the feeding roller (502) close to the feeding roller (502), the center of the second pressing wheel (5031) is consistent with the horizontal height of the center of the feeding roller (502), so that the fixed-length feeding mechanism (5) has the vertical downward conveying direction and is aligned with the paper cutting position of the cutting mechanism (6).

10. The honeycomb core cutter of claim 9,

the pressing wheel driving mechanism comprises a vertical lever (5032), a pressing wheel cylinder (5033) and a pressing wheel seat (5034); the second pressing wheel (5031) is arranged at the lower end of the vertical lever (5032) and is opposite to the feeding roller (502); the middle part of the vertical lever (5032) is rotatably connected with a support rod at the rear side of the pinch roller seat (5034), the upper end of the vertical lever (5032) is movably connected with a cylinder rod of the pinch roller cylinder (5033), the rear end of the pinch roller cylinder (5033) is connected with the pinch roller seat (5034), and the pinch roller seat (5034) is arranged on a transverse bracket on the rack (1).

11. The honeycomb core cutter of claim 1,

the cutting mechanism (6) comprises a movable knife rest (601), a fixed knife rest (602), a transmission shaft (603), a movable knife (604), a fixed knife (605), a cutting driving unit (607), an eccentric wheel (608), a connecting rod (609) and a slide block sliding seat group (610);

the cutting driving unit (607) is connected with the transmission shaft (603); the transmission shaft (603) is arranged at the rear part of the frame (1) through a bearing seat; two ends of the transmission shaft (603) are respectively connected with an eccentric wheel (608), each eccentric wheel (608) is respectively connected with the rear end of a connecting rod (609) through a bearing, and the front end of each connecting rod (609) is respectively connected with the movable knife rest (601) through a pin shaft; the bottom of the movable knife rest (601) is borne on a sliding block sliding seat group (610) arranged on the frame (1); the top of the movable knife rest (601) is connected with a movable knife (604); the fixed cutter frame (602) is arranged on the frame (1), and the bottom of the fixed cutter frame (602) is connected with the fixed cutter (605); the knife point of the movable knife (604) is opposite to the knife point of the fixed knife (605) and is approximately in the same horizontal position; the cutting space behind the cutting edge of the fixed cutter (605) forms a cutting position in the cutting mechanism (6).

12. The honeycomb core cutter of claim 11,

the lifting platform mechanism (7) comprises a lifting platform (701) and a lifting driving mechanism (702), and the bottom of the lifting platform (701) is connected with the lifting driving mechanism (702); the lifting platform (701) is positioned below the positioning tool rest (602);

the front end of the movable knife rest (601) is also provided with a vertical push plate (606); the rear side of the lifting platform (701) is provided with a guide groove matched with the push plate (606).

Technical Field

The invention relates to mechanical equipment, in particular to a honeycomb core paper cutting machine.

Background

The honeycomb paperboard mainly has three uses, the first aspect is as a transportation tray, the thickened honeycomb paperboard which mainly uses a thick paperboard as a surface layer has good strength and light weight, and can replace a wooden tray, thereby effectively reducing forest felling and protecting the ecological environment; the second aspect is that the heavy packing box uses, and the honeycomb cardboard can make into the thick wall paper that high-rise corrugated container board is difficult to be competent, replaces the packing wooden case that uses in a large number, replaces wood with paper, saves forest resource. The third aspect is that the lining cushion is used, the honeycomb paperboard can be made into different shapes, and is used in the packing box to replace polystyrene foam pads, thereby solving the problem of white pollution, reducing the packing volume and reducing the packing materials.

The honeycomb paperboard mainly comprises a honeycomb core and a surface layer; the honeycomb core is usually a paper honeycomb core, but also an aluminum honeycomb core.

The honeycomb core paper cutter is used for transversely cutting a plurality of layers of composite honeycomb base paper (generally, double layers) coated with glue into paper sections, and then the front paper section and the rear paper section can be continuously pasted into honeycomb cores;

it should be noted that, in the present application, the multilayer composite honeycomb base paper may be paper or aluminum; the base paper is a customary name in the industry and does not necessarily mean that it is paper.

Disclosure of Invention

The invention aims to provide a honeycomb core paper cutting machine which is high in cutting speed and smooth in cutting. In order to achieve the technical purpose, the embodiment of the invention adopts the technical scheme that:

the embodiment of the invention provides a honeycomb core paper cutting machine which comprises a rack, a traction mechanism, a material guiding mechanism, a fixed-length feeding mechanism, a cutting mechanism and a lifting platform mechanism, wherein the traction mechanism is arranged on the rack;

the traction mechanism is arranged at the top of the rear side of the rack and used for carrying the multilayer composite honeycomb base paper to the guide mechanism in a traction manner;

the material guide mechanism is arranged on the rack, is positioned on the front side of the traction mechanism and is used for guiding the multilayer composite honeycomb base paper to the fixed-length feeding mechanism;

the fixed-length feeding mechanism is arranged on the front side of the rack, is positioned at the downstream of the material guide mechanism and is used for conveying the multilayer composite honeycomb base paper to a paper cutting position in the cutting mechanism in a direction perpendicular to the horizontal paper cutting direction; the fixed-length feeding mechanism conveys the multilayer composite honeycomb base paper with the set length each time;

the cutting mechanism is arranged on the rack, the paper cutting position of the cutting mechanism is positioned in the vertical downward conveying direction of the fixed-length feeding mechanism, and the cutting mechanism is used for cutting the multilayer composite honeycomb base paper P into paper sections with fixed length and sequentially extruding and pushing the cut paper sections forwards;

the lifting platform mechanism is arranged on the front side of the rack and located below the fixed-length feeding mechanism, and is used for bearing the multi-layer composite honeycomb base paper which is conveyed in place in a descending mode and bearing cut paper sections which are arranged in a front-back mutual extrusion mode.

Further, the traction mechanism comprises a traction roller, a first pressing wheel set, a traction driving unit and a turnover driving unit;

the first pinch roller set comprises a plurality of first pinch rollers arranged at intervals transversely, each first pinch roller in the first pinch roller set is arranged on a pinch roller shaft, the pinch roller shaft and the traction roller are arranged on the top of the rear side of the rack in parallel, and each first pinch roller in the first pinch roller set is positioned above the traction roller; the traction roller is driven by a traction driving unit arranged on one side of the frame; the first pinch roller set is turned over through a turning driving unit arranged on one side of the rack.

Still further, the traction mechanism further comprises a traction auxiliary roller; the traction auxiliary roller is arranged on the frame, is parallel to the traction roller and is positioned behind the traction roller.

Furthermore, the material guide mechanism comprises a plurality of arc-shaped guide rails which are arranged in parallel at intervals, and each arc-shaped guide rail is arranged on the rack through an upper transverse rail and a lower transverse rail; the upper end of the arc-shaped guide rail is opposite to the traction mechanism, and the lower end of the arc-shaped guide rail extends to the fixed-length feeding mechanism.

Furthermore, each arc-shaped guide rail is respectively connected with the connecting pieces on the upper transverse rail and the lower transverse rail through screws, and two ends of the lower transverse rail are connected with the frame through adjusting screws.

Furthermore, the front side of the arc-shaped guide rail is also provided with a front stop rail; the gap between the lower end of the front baffle rail and the lower end of the arc-shaped guide rail is aligned with the feeding position in the fixed-length feeding mechanism.

Further, the honeycomb core paper cutting machine further comprises a distance measuring mechanism, wherein the distance measuring mechanism is used for detecting the arching degree of the multilayer composite honeycomb base paper on the material guide mechanism, so that the controller can adjust the proper traction speed of the traction mechanism according to the arching degree.

Still further, the range finding mechanism includes range finding sensor, and range finding sensor sets up below behind the clearance between the arc guide rail.

Further, the fixed-length feeding mechanism comprises a feeding servo motor, a feeding roller and a second pressing wheel set, wherein the second pressing wheel set comprises a plurality of second pressing wheels which are arranged at intervals; the feeding servo motor is connected with the speed reducer and is connected with the feeding roller through a coupling; the feeding roller is arranged on the front side of the frame and is positioned below the front end of the material guide mechanism; each second pressing wheel is arranged on the front side of the feeding roller, and the second pressing wheels are close to or separated from the feeding roller through a pressing wheel driving mechanism; a feeding position in the fixed-length feeding mechanism is arranged above the position between the feeding roller and the second pressing wheel and is opposite to the lower end of the material guide mechanism; the lower part between feed roll and the second pinch roller is fixed length feeding mechanism's direction of delivery, and the center of second pinch roller is unanimous with the central level of feed roll when the second pinch roller leans on to the compound honeycomb body paper of multilayer between feed roll contact second pinch roller and the feed roll to fixed length feeding mechanism has the perpendicular decurrent direction of delivery, and aims at the cut paper position that cuts the mechanism.

Furthermore, the pinch roller driving mechanism comprises a vertical lever, a pinch roller cylinder and a pinch roller seat; the second pressing wheel is arranged at the lower end of the vertical lever and is opposite to the feeding roller; the middle part of the vertical lever is rotatably connected with a supporting rod at the rear side of the pinch roller seat, the upper end of the vertical lever is movably connected with a cylinder rod of the pinch roller cylinder, the rear end of the pinch roller cylinder is connected with the pinch roller seat, and the pinch roller seat is arranged on a transverse bracket on the rack.

Furthermore, the cutting mechanism comprises a movable cutter frame, a fixed cutter frame, a transmission shaft, a movable cutter, a fixed cutter, a cutting driving unit, an eccentric wheel, a connecting rod and a sliding block and sliding seat group;

the cutting driving unit is connected with the transmission shaft; the transmission shaft is arranged at the rear part of the frame through a bearing seat; two ends of the transmission shaft are respectively connected with an eccentric wheel, each eccentric wheel is respectively connected with the rear end of a connecting rod through a bearing, and the front end of each connecting rod is respectively connected with the movable tool rest through a pin shaft; the bottom of the movable cutter frame is borne on a sliding block sliding seat group arranged on the machine frame; the top of the movable cutter frame is connected with a movable cutter; the fixed tool rest is arranged on the frame, and the bottom of the fixed tool rest is connected with the fixed tool; the tool point of the movable tool is opposite to the tool point of the fixed tool and is approximately in the same horizontal position; the cutting space behind the tip of the stationary blade forms a cutting position in the cutting mechanism 6.

Furthermore, the lifting platform mechanism comprises a lifting platform and a lifting driving mechanism, and the bottom of the lifting platform is connected with the lifting driving mechanism; the lifting platform is positioned below the fixed tool rest;

the front end of the movable knife rest is also provided with a vertical push plate; the rear side of the lifting platform is provided with a guide groove matched with the push plate.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

1) the cutting speed is fast and cut smoothly.

2) Degree of automation is high, and control is accurate, can continuity of operation.

3) The influence of the gram weight, the water content, the width of the door width and the like of the base paper is small.

Drawings

Fig. 1 is a front oblique perspective view of a honeycomb core cutter in an embodiment of the invention.

Fig. 2 is a perspective view of the honeycomb core cutter from a back oblique perspective in an embodiment of the invention.

FIG. 3 is a schematic side view of a honeycomb core cutter in an embodiment of the present invention.

Fig. 4 is a schematic view of a multi-layer composite honeycomb base paper in an embodiment of the invention.

Fig. 5 is a schematic view of the definite length feeding mechanism and the cutting mechanism in the embodiment of the invention.

Fig. 6 is a schematic top view of a definite length feeding mechanism in an embodiment of the present invention.

Fig. 7 is a schematic top view of a cutting mechanism according to an embodiment of the invention.

FIG. 8 is a schematic diagram of a cutting operation according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 2, an embodiment of the present invention provides a honeycomb core paper cutting machine, including a frame 1, a traction mechanism 2, a material guiding mechanism 3, a fixed-length feeding mechanism 5, a cutting mechanism 6, and a lifting platform mechanism 7;

the traction mechanism 2 is arranged at the top of the rear side of the frame 1 and is used for carrying the multilayer composite honeycomb base paper P to the guide mechanism 3 in a traction way; the structure of the multilayer composite honeycomb base paper P will be described later;

the material guide mechanism 3 is arranged on the frame 1, is positioned on the front side of the traction mechanism 2 and is used for guiding the multilayer composite honeycomb base paper P to the fixed-length feeding mechanism 5;

the fixed-length feeding mechanism 5 is arranged on the front side of the rack 1, is positioned at the downstream of the material guiding mechanism 3 and is used for conveying the multilayer composite honeycomb base paper P to a paper cutting position in the cutting mechanism 6 in a direction perpendicular to the horizontal paper cutting direction; the fixed-length feeding mechanism 5 conveys the multilayer composite honeycomb base paper P with the set length each time;

the cutting mechanism 6 is arranged on the frame 1, the paper cutting position of the cutting mechanism is positioned in the vertical downward conveying direction of the fixed-length feeding mechanism 5, and the cutting mechanism is used for cutting the multilayer composite honeycomb base paper P into paper sections P 'with fixed length and sequentially extruding and pushing the cut paper sections P' forwards;

the lifting platform mechanism 7 is arranged on the front side of the frame 1 and is positioned below the fixed-length feeding mechanism 5, and the lifting platform mechanism 7 is used for receiving the multilayer composite honeycomb base paper P which is descended and conveyed in place and is used for receiving cut paper sections P' which are arranged in a front-back mutual extrusion manner; the cut paper sections P' can be bonded back and forth on the lifting platform mechanism 7 to form a continuous honeycomb core;

the honeycomb core paper cutting machine provided by the embodiment of the invention has the advantages that the cutting speed is high, the cutting is smooth, and a high-quality honeycomb core can be manufactured;

specifically, as shown in fig. 1 and fig. 2, the traction mechanism 2 includes a traction roller 201, a first pressure roller set 202, a traction drive unit 203, and an inversion drive unit 204; preferably, a traction assist roller 205; the first pinch roller set 202 comprises a plurality of first pinch rollers 2021 arranged at intervals transversely, each first pinch roller 2021 in the first pinch roller set 202 is mounted on a pinch roller shaft 2022, the pinch roller shaft 2022 and the traction roller 201 are mounted on the top of the rear side of the frame 1 in parallel, and each first pinch roller 2021 in the first pinch roller set 202 is positioned above the traction roller 201; the traction roller 201 is driven by a traction drive unit 203 mounted on one side of the frame 1, the traction drive unit 203 comprising a traction motor and a chain-and-sprocket transmission mechanism in this embodiment; the traction motor is driven by a frequency converter, and the frequency converter is controlled by a PLC (programmable logic controller); the first pressure wheel set 202 is turned over by a turning driving unit 204 arranged on one side of the frame 1, so that each pressure wheel in the first pressure wheel set 202 is close to or separated from the traction roller 201; the overturning driving unit 204 in this embodiment adopts an overturning cylinder, and the overturning cylinder can drive the pinch roller shaft 2022 to rotate; the traction auxiliary roller 205 is arranged on the frame 1, is parallel to the traction roller 201 and is positioned behind the traction roller 201; the glue-coated multilayer composite honeycomb base paper P enters from the top of the rear part of the machine frame 1, is firstly lapped on the traction auxiliary roller 205, then is lapped on the traction roller 201 in a state that the first pressing wheel group 202 is opened, and then the first pressing wheel group 202 is downwards turned and pressed on the multilayer composite honeycomb base paper P; the first press wheels 2021 in the first press wheel group 202 are transversely arranged at intervals, so that the glue lines on the front surface (the upper surface at this time) of the multi-layer composite honeycomb base paper P can be avoided; the back of the multilayer composite honeycomb base paper P has no glue, so the multilayer composite honeycomb base paper P can be lapped on a traction auxiliary roller 205 and a traction roller 201;

specifically, as shown in fig. 1 and 2, the material guiding mechanism 3 includes a plurality of arc-shaped guide rails 301 arranged in parallel at intervals, and each arc-shaped guide rail 301 is installed on the rack 1 through an upper transverse rail 302 and a lower transverse rail 303; the upper end of the arc-shaped guide rail 301 is opposite to the traction mechanism 2, and the lower end of the arc-shaped guide rail 301 extends to the fixed-length feeding mechanism 5; the material guide mechanism 3 can guide the multilayer composite honeycomb base paper P conveyed by the traction mechanism 2 to the fixed-length feeding mechanism 5;

preferably, each arc-shaped guide rail 301 is respectively connected with connecting pieces on the upper transverse rail 302 and the lower transverse rail 303 through screws, and two ends of the lower transverse rail 303 are connected with the frame 1 through adjusting screws 304; when the material guide mechanism 3 is installed, the front and back positions of the lower end of the arc-shaped guide rail 301 can be properly adjusted through the adjusting screw 304 so as to better align with the feeding position in the fixed-length feeding mechanism 5; the arc-shaped guide rail 301 is connected with connecting sheets on the upper transverse rail 302 and the lower transverse rail 303 through screws after being adjusted;

preferably, a front stop rail 305 is further arranged on the front side of the arc-shaped guide rail 301; the gap between the lower end of the front baffle rail 305 and the lower end of the arc-shaped guide rail 301 is aligned with the feeding position in the fixed-length feeding mechanism 5; so as to more accurately convey the multilayer composite honeycomb base paper P to the fixed-length feeding mechanism 5; the upper end of the front stop rail 305 can be bent towards the arc-shaped guide rail 301 to prevent the multilayer composite honeycomb base paper P from excessively arching;

preferably, the honeycomb core paper cutting machine provided by the embodiment of the invention further comprises a distance measuring mechanism 4, wherein the distance measuring mechanism 4 is used for detecting the arching degree of the multilayer composite honeycomb base paper P on the material guide mechanism 3, so that the controller adjusts the proper traction speed of the traction mechanism 2 according to the arching degree;

specifically, as shown in fig. 3, the distance measuring mechanism 4 includes a distance measuring sensor 401, the distance measuring sensor 401 is disposed behind and below the gap between the arc-shaped guide rails 301 to detect the degree of arching of the multi-layer composite honeycomb base paper P on the arc-shaped guide rails 301 and feed back the detected degree to the PLC controller, the distance measuring value is large if the degree of arching is large, the PLC controller controls the traction drive unit 203 to decelerate, the distance measuring value is small if the degree of arching is small, and the PLC controller can control the traction drive unit 203 to accelerate or maintain the speed unchanged; in this embodiment, the distance measuring sensor 401 is connected to the upper cross rail 302 through a sensor bracket, and in other embodiments, the distance measuring sensor 401 may also be connected to other suitable portions of the rack 1 through a sensor bracket;

in some embodiments, the glue-coated multilayer composite honeycomb base paper P may be four or six or eight, etc. even double layers; in one embodiment shown in fig. 4, the glued multi-layer composite honeycomb base paper P is a four-layer structure, which includes four layers of base paper P1, the front surface of each layer of base paper P1 is coated with glue lines P2 along the length direction (perpendicular to the paper surface in fig. 4), and the glue lines P2 on the odd-numbered layer and the even-numbered layer of base paper P1 are mutually staggered; the glue line P2 on the odd-numbered layer is positioned in the middle of two adjacent glue lines P2 on the even-numbered layer; after the multilayer composite honeycomb base paper P is cut into paper sections P ' with fixed length, if the paper sections P ' are arranged in a front-to-back extrusion manner when being erected, the next paper section P ' can be stuck to the back of the previous paper section P ' through a glue line P2 on the front side of the next paper section P ' to form a continuous honeycomb core; after the glue is dried, the continuous honeycomb core can be unfolded into a honeycomb shape;

specifically, as shown in fig. 1, fig. 2, fig. 5 and fig. 6, the fixed-length feeding mechanism 5 includes a feeding servo motor 501, a feeding roller 502 and a second pressing wheel set 503, wherein the second pressing wheel set 503 includes a plurality of second pressing wheels 5031 arranged at intervals; the feeding servo motor 501 is connected with a speed reducer and is connected with a feeding roller 502 through a coupler; the feeding roller 502 is arranged at the front side of the frame 1 and is positioned below the front end of the material guide mechanism 3; each second pressing wheel 5031 is arranged on the front side of the feeding roller 502 and is driven by a pressing wheel driving mechanism to approach or separate from the feeding roller 502; a feeding position in the fixed-length feeding mechanism 5 is arranged above the position between the feeding roller 502 and the second pressing wheel 5031 and is opposite to the lower end of the material guiding mechanism 3; the lower part between the feeding roller 502 and the second pressing wheel 5031 is the conveying direction of the fixed-length feeding mechanism 5, and the center of the second pressing wheel 5031 is consistent with the horizontal height of the center of the feeding roller 502 when the second pressing wheel 5031 contacts the multilayer composite honeycomb base paper P between the second pressing wheel 5031 and the feeding roller 502 towards the feeding roller 502, so that the fixed-length feeding mechanism 5 has a vertically downward conveying direction and is aligned with the paper cutting position of the cutting mechanism 6;

the second pressing wheels 5031 in the second pressing wheel group 503 are arranged at intervals, so as to avoid the glue lines on the front surface (front surface at this time) of the multilayer composite honeycomb base paper P; the back of the multilayer composite honeycomb base paper P has no glue, so the multilayer composite honeycomb base paper P can be lapped on a feeding roller 502;

specifically, the pinch roller driving mechanism comprises a vertical lever 5032, a pinch roller cylinder 5033 and a pinch roller seat 5034; a second pinch roller 5031 is arranged at the lower end of the vertical lever 5032 and is opposite to the feeding roller 502; the middle part of the vertical lever 5032 is rotatably connected with a strut at the rear side of the pinch roller seat 5034, the upper end of the vertical lever 5032 is movably connected with a cylinder rod of the pinch roller cylinder 5033, the rear end of the pinch roller cylinder 5033 is connected with the pinch roller seat 5034, and the pinch roller seat 5034 is installed on a transverse bracket on the frame 1; when the cylinder rod of the pinch roller cylinder 5033 extends, the second pinch roller 5031 is separated from the feed roller 502, and when the cylinder rod of the pinch roller cylinder 5033 retracts, the second pinch roller 5031 presses the feed roller 502, so that the multilayer composite honeycomb base paper P is pressed between the second pinch roller 5031 and the feed roller 502, and the multilayer composite honeycomb base paper P is vertically conveyed downwards through the rotation of the feed roller 502;

the feeding action of the fixed-length feeding mechanism 5 is used as intermittent action, a feeding servo motor 501 is controlled by a PLC controller, and the feeding roller 502 rotates by the same angle every time to realize fixed-length feeding of the multilayer composite honeycomb base paper P;

specifically, as shown in fig. 2, 5, 7 and 8, the cutting mechanism 6 includes a movable knife holder 601, a fixed knife holder 602, a transmission shaft 603, a movable knife 604, a fixed knife 605, a cutting driving unit 607, an eccentric wheel 608, a connecting rod 609, a slider-slider group 610;

the cutting drive unit 607 is connected to the transmission shaft 603; the cutting driving unit 607 in this embodiment includes a cutting motor 6071 and a synchronous belt transmission mechanism 6072, and the cutting motor 6071 is connected to the transmission shaft 603 through the synchronous belt transmission mechanism 6072; the transmission shaft 603 is arranged at the rear part of the frame 1 through a bearing seat; two ends of the transmission shaft 603 are respectively connected with an eccentric wheel 608, each eccentric wheel 608 is respectively connected with the rear end of a connecting rod 609 through a bearing, and the front end of each connecting rod 609 is respectively connected with the movable tool rest 601 through a pin shaft; the bottom of the movable tool holder 601 is supported on a sliding block and sliding seat group 610 arranged on the frame 1; the top of the movable knife rest 601 is connected with a movable knife 604; the fixed cutter frame 602 is arranged on the frame 1, and the bottom of the fixed cutter frame 602 is connected with a fixed cutter 605; the knife point of the movable knife 604 is opposite to the knife point of the fixed knife 605 and is approximately in the same horizontal position; the cutting space behind the cutting edge of the fixed cutter 605 forms a cutting position in the cutting mechanism 6; under the drive of the cutting drive unit 607, the transmission shaft 603 rotates, and the movable knife rest 601 and the movable knife 604 can be driven to do reciprocating horizontal motion through the eccentric wheel 608 and the connecting rod 609;

preferably, the front end of the movable knife rest 601 is also provided with a vertical push plate 606; after the movable knife 604 moves towards the fixed knife 606 and cuts off the multilayer composite honeycomb base paper P vertically conveyed downwards from the fixed-length feeding mechanism 5, the paper sections P' with fixed length can be sequentially extruded and pushed forwards through the push plate 606;

preferably, a counterweight 611 can be further arranged on the transmission shaft 603 to increase inertia, so that the stationary tool holder 602 runs more smoothly;

specifically, the lifting platform mechanism 7 comprises a lifting platform 701 and a lifting driving mechanism 702, and the bottom of the lifting platform 701 is connected with the lifting driving mechanism 702; the elevation driving mechanism 702 employs a worm screw elevator driven by a servo motor in the present embodiment; the lifting platform 701 is positioned below the positioning tool rest 602; the lifting platform 701 can be lifted through the lifting driving mechanism 702 so as to adapt to the cutting requirements of paper sections P' with different fixed lengths; after the multilayer composite honeycomb base paper P is cut into paper sections P ' with fixed length successively, the cut paper sections P ' are mutually extruded and arranged front and back under the action of the push plate 606, and the next paper section P ' can be adhered to the back of the previous paper section P ' through the glue line P2 on the front side of the next paper section P ' to form a continuous honeycomb core;

preferably, a guide groove matched with the push plate 606 is arranged on the rear side of the lifting platform 701;

as shown in fig. 8, when the transmission shaft 603 of the cutting mechanism 6 rotates one turn, the movable knife holder 601 makes a back-to-back reciprocating motion in the horizontal direction, and the movable knife 604 also makes a back-to-back reciprocating motion in the horizontal direction; for the sake of safety, after the tool tip of the movable tool 604 retreats to pass through the position a each time, the fixed-length feeding mechanism 5 is started, and when the tool tip of the movable tool 604 retreats to the right position and advances to the position B, the fixed-length feeding mechanism 5 stops feeding once; the distances between the position A and the position B are respectively a safe distance from the back side of the multilayer composite honeycomb base paper P conveyed to the position downwards; the A position and the B position can be the same, or the B position can be positioned at the rear side of the A position; the working speed of the cutting mechanism 6 can be controlled by a PLC controller to achieve the above-mentioned safety control movement.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.