Multi-layer interface reinforced corrugating medium paper compounding process and equipment

Abstract

The invention relates to the technical field of corrugated paper composite processing, and discloses a multilayer interface reinforced corrugated medium paper composite technology and equipment, the multilayer interface reinforced corrugated medium paper composite equipment comprises a rack, a portal frame, a scraper and a glue spraying mechanism, and further comprises glue storage mechanisms symmetrically arranged on the two sides of the portal frame, the glue storage mechanisms comprise glue storage boxes, and circulating pumps are fixedly installed at the tops of the glue storage boxes; the scraper can reciprocate left and right under the cooperation of the eccentric wheel and the rocker, and extrudes the top plate and the top rod at the two ends into the sealing tank, so that the sliding block can slide in the sealing tank, and negative pressure can be formed on the right side of the sliding block; in this way, the suction nozzles on the surfaces of the adsorption plates can adsorb redundant glue liquid scraped from the two sides of the corrugated core paperboard through negative pressure, the glue liquid is guided into the glue storage box through the glue liquid guide pipe on the top, the redundant glue liquid can be synchronously recycled and secondarily used when the surface of the corrugated core paperboard on the rack is coated with the redundant glue liquid, and excessive waste of the glue liquid is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of corrugated paper composite processing, and specifically provides a multi-layer interface strengthening corrugated core paper composite process and equipment. Background Art

[0002] Multi-layer interface corrugated core paperboards are generally used as lining protection layers for commodity packaging or to make lightweight grids and pads to protect commodities from vibration or impact during storage and transportation. In the production and preparation process of existing multi-layer composite corrugated core paperboards, glue application and composite processing are required.

[0003] For example, Chinese Patent Authorization Publication No. CN113798138B, "discloses a scraper device for a corrugated core paper papermaking equipment, specifically related to the technical field of corrugated paper processing, including a frame, a gantry is fixedly installed above the frame, a glue roller is rotatably connected to one side above the frame, and a scraper mechanism is arranged inside the gantry";

[0004] In the above cited document, through the setting of the scraper mechanism, the rotation of the eccentric wheel is used to drive the scraper to reciprocate left and right. The scraper in contact with the corrugated core paper at the bottom can scrape the glue on the surface of the corrugated core paper flat, making the glue liquid evenly distributed and having a better bonding effect during subsequent lamination.

[0005] When the corrugated paper is laminated in the above cited document, although the scraper can be driven by the rocker mechanism to evenly treat the glue liquid on the surface of the corrugated paper, when the glue liquid is scraped to both sides by the reciprocating scraper, the excess glue liquid cannot be recovered in time, resulting in a large accumulation of glue liquid at both side edges of the corrugated core paper and a large waste of glue liquid. Moreover, when the glue liquid is scraped and filled into the corrugated grooves on the surface of the corrugated core paper, air bubbles are formed when the glue liquid enters the grooves, and it cannot be evenly filled, resulting in insufficient filling density and uneven glue coating uniformity of the corrugated core paper. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-layer interface strengthening corrugated core paper composite process and equipment, which can timely recover and reuse the excess glue liquid coated on the surface of the corrugated core paperboard, avoid excessive waste of glue liquid, and can tightly fill the glue liquid in the grooves on the surface of the corrugated core paper, avoiding the problem of insufficient filling uniformity caused by air bubbles entering.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: A multi-layer interface strengthening corrugated core paper composite process and equipment, including a frame, a gantry, a scraper, a glue spraying mechanism, and further includes:

[0008] A glue storage mechanism, symmetrically arranged on both sides of the gantry. The glue storage mechanism includes a glue storage tank, a circulation pump is fixedly installed on the top of the glue storage tank, and the circulation pump is connected to the glue spraying mechanism;

[0009] Adsorption plates are arranged at the two side edges of the frame. Mounting frames are fixedly installed at the two side edges of the corrugated medium paper near the top of the frame respectively, and the adsorption plates are fixedly installed on the corresponding mounting frames.

[0010] Glue spraying mechanism, including a glue spraying plate fixedly installed at the middle part on the side of the gantry away from the adsorption plate through a bracket.

[0011] Sealing tanks are fixedly installed on both sides of the gantry. A push rod and a top plate are respectively arranged at one end of the sealing tank close to the scraper. A sliding plate is slidably installed inside the sealing tank, and a first wedge block is fixedly installed at one end of the push rod close to the top plate.

[0012] Touch plates are symmetrically arranged at the two side edges of the corrugated medium paper on the top of the frame. A second wedge block is arranged at one end of the top of the touch plate, and the inclined surface of the second wedge block corresponds to the inclined surface of the first wedge block on the same side.

[0013] Preferably, rubber rollers are respectively rotatably installed on the brackets on both sides of the frame. A guide rail is fixedly installed at the top of the inner wall of the gantry. A slider is fixedly installed at the middle part of the top surface of the scraper, and the slider slides in the chute at the middle part of the bottom surface of the guide rail.

[0014] Preferably, a rocker is slidably installed in the middle groove of the scraper. A servo motor is fixedly installed on one side of the gantry through a bracket. An eccentric wheel is rotatably installed at one end of the rocker close to the servo motor, and the output end of the servo motor is fixedly connected to the side surface of the eccentric wheel.

[0015] Preferably, the glue storage tank is fixedly installed outside the gantry through a bracket. The input end of the circulation pump is communicated with the glue storage tank through a connecting pipe, and the output end of the circulation pump is communicated with the input end of the glue spraying plate through a connecting pipe.

[0016] Preferably, a glue liquid conduit penetrates and connects between one end of the inner cavity of the sealing tank close to the top plate and the adsorption plate. The inner cavity of the sealing tank on the side away from the sliding plate is communicated with the glue storage tank through a glue liquid conduit, and a one-way valve is installed on the glue liquid conduit between the sealing tank and the glue storage tank.

[0017] Preferably, the push rod movably penetrates through the inner side wall of the guide rail, and the two top plates respectively correspond to the two end parts of the scraper.

[0018] Preferably, one end of the push rod is fixedly connected to the sliding plate, and the other end of the push rod is fixedly connected to the top plate. Guide grooves are respectively opened on both sides of the inner wall of the guide rail, and guide rods are fixedly installed in the inner walls of the guide grooves.

[0019] Preferably, a connecting plate is fixedly installed between the top of the trigger plate and the second wedge. One end of the second wedge slides in the inner wall of the guiding groove, and the end of the second wedge away from the connecting plate is movably nested outside the guiding groove on the same side.

[0020] Preferably, the trigger plate is located above the adsorption plate on the same side, and a return spring is fixedly installed between the second wedge and the inner wall of the corresponding guiding groove.

[0021] Preferably, the technological steps adopted in the specific preparation and processing of the multi-layer composite corrugated core paperboard are as follows: S1. Paper cutting: cutting the kraft paper into required sizes according to requirements;

[0022] S2. Grooving: rolling the side walls of the paper cut in step S1 into grooves by rolling;

[0023] S3. Core paper adhesion: coating the core paper with evenly coated adhesive.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] In the present invention, under the cooperation of the eccentric wheel and the rocker, the scraper can reciprocate left and right. The scraper squeezes the top plates and the top rods at both ends into the sealing tank, so that the slider can slide inside the sealing tank, thereby forming a negative pressure on the right side of the slider. In this way, the suction nozzles on the surface of the adsorption plate can adsorb the excess adhesive scraped from both sides of the corrugated core paperboard through negative pressure and introduce it into the glue storage tank through the glue conduit at the top. In this way, the excess adhesive coated on the surface of the corrugated core paperboard on the rack can be recycled and reused synchronously, avoiding excessive waste of the adhesive;

[0026] When the two ends of the scraper in the present invention press against the top plates, the first wedge can intermittently press against the corresponding second wedge below, so that the connecting plate and the trigger plate at the bottom of the second wedge can slightly strike both sides of the corrugated core paper below, so that after the glue enters the surface slots through scraping by the scraper, it is vibrantly filled tightly, avoiding the problem of insufficient filling uniformity caused by the entry of air bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 is a partial structural schematic diagram of the rack in the present invention;

[0029] Figure 3 is a structural schematic diagram of the back of the rack in the present invention;

[0030] Figure 4 is a schematic side sectional view of the present invention;

[0031] Figure 5Schematic diagram of the side cross-section structure of the doctor blade in the present invention;

[0032] Figure 6 is Figure 4 Schematic diagram of the partially enlarged structure at position A in

[0033] Figure 7 is Figure 5 Schematic diagram of the partially enlarged structure at position B in

[0034] In the figure: 100, frame; 200, gantry; 300, doctor blade; 400, glue storage mechanism; 500, adsorption plate; 600, glue spraying mechanism; 700, sealing tank; 800, touch plate; 11, rubber roller; 21, guide rail; 211, guide groove; 212, guide rod; 213, return spring; 31, servo motor; 32, eccentric wheel; 33, rocker; 34, slider; 41, glue storage tank; 42, circulation pump; 51, mounting bracket; 61, glue spraying plate; 71, ejector rod; 72, top plate; 73, first wedge; 74, slide plate; 701, glue conduit; 81, connecting plate; 82, second wedge. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0036] Embodiment 1:

[0037] This embodiment introduces a multi-layer interface strengthening corrugated core paper composite process and equipment. As Figures 1-7 shown, it includes a frame 100, a gantry 200, a doctor blade 300, and a glue spraying mechanism 600. It also includes:

[0038] A glue storage mechanism 400, symmetrically arranged on both sides of the gantry 200. The glue storage mechanism 400 includes a glue storage tank 41, and a circulation pump 42 is fixedly installed on the top of the glue storage tank 41. The circulation pump 42 is connected to the glue spraying mechanism 600;

[0039] An adsorption plate 500, arranged at the edges on both sides of the frame 100. Mounting brackets 51 are respectively fixedly installed on the top of the frame 100 near the edges on both sides of the corrugated core paper, and the adsorption plate 500 is fixedly installed on the corresponding mounting brackets 51;

[0040] A glue spraying mechanism 600, including a glue spraying plate 61 fixedly installed on the middle part of the side of the gantry 200 away from the adsorption plate 500 through a bracket;

[0041] Among them, rubber rollers 11 are respectively rotatably installed on both sides of the frame 100. A guide rail 21 is fixedly installed at the top of the inner wall of the gantry 200. A slider 34 is fixedly installed in the middle of the top surface of the scraper 300. The slider 34 slides in the middle chute at the bottom of the guide rail 21. A rocker 33 is slidably installed in the middle slot of the scraper 300. A servo motor 31 is fixedly installed on one side of the gantry 200 through a bracket. One end of the rocker 33 close to the servo motor 31 is rotatably installed with an eccentric wheel 32. The output end of the servo motor 31 is fixedly connected to the side surface of the eccentric wheel 32. An installation slot is opened in the middle of the scraper 300. Arc-shaped convex blocks are respectively fixedly installed on both sides of the inner wall of the installation slot. Both ends of the rocker 33 slide between the corresponding arc-shaped convex blocks. The servo motor 31 drives the rocker 33 to move left and right reciprocally through the eccentric wheel 32. At the same time, the rocker 33 can drive the scraper 300 to swing up and down.

[0042] Among them, the glue storage tank 41 is fixedly installed on the outside of the gantry 200 through a bracket. The input end of the circulating pump 42 is communicated with the glue storage tank 41 through a connecting pipe. The output end of the circulating pump 42 is communicated with the input end of the glue spraying plate 61 through a connecting pipe. The glue spraying plate 61 in the middle of the gantry 200 can cooperate with the glue storage tank 41 and the circulating pump 42 to pump the internal glue into the glue spraying plate 61, and spray the glue on the surface of the corrugated core paper between the rubber rollers 11.

[0043] Among them, a glue liquid conduit 701 is connected through the adsorption plate 500 near one end of the top plate 72 in the inner cavity of the sealing tank 700. The side of the inner cavity of the sealing tank 700 far from the slide plate 74 is communicated with the glue storage tank 41 through the glue liquid conduit 701. And a one-way valve is installed on the glue liquid conduit 701 between the sealing tank 700 and the glue storage tank 41. The ejector rod 71 movably penetrates to the inner side wall of the guide rail 21. The two top plates 72 respectively correspond to the two ends of the scraper 300. The scraper 300 squeezes the two top plates 72 and the ejector rod 71 into the sealing tank 700, so that the slider 34 can slide inside the sealing tank 700, thereby forming a negative pressure on the right side of the slider 34. In this way, the suction nozzles on the surface of the adsorption plate 500 can adsorb the excess glue scraped from both sides of the corrugated cardboard through negative pressure and introduce it into the glue storage tank 41 through the glue liquid conduit 701 at the top. In this way, the excess glue coated on the surface of the corrugated cardboard on the frame 100 can be recycled synchronously.

[0044] Among them, the process steps adopted in the specific preparation and processing of the multi-layer composite corrugated cardboard are as follows: S1. Paper cutting: Cut the kraft paper into the required size according to the requirements;

[0045] S2. Grooving: Roll the side walls of the paper cut in step S1 into grooves by rolling;

[0046] S3. Core paper adhesion: Coat the core paper with evenly coated glue.

[0047] Such asFigures 1-3 As shown in the figure, in this embodiment, an installation notch is formed in the middle of the scraper 300. Arc-shaped convex blocks are fixedly installed on both sides of the inner wall of the installation notch. Both ends of the rocker 33 slide between the corresponding arc-shaped convex blocks. The servo motor 31 drives the rocker 33 to move left and right reciprocally through the eccentric wheel 32. At the same time, the rocker 33 can drive the scraper 300 to swing up and down. The glue spraying plate 61 in the middle of the gantry 200 can cooperate with the glue storage tank 41 and the circulation pump 42 to pump the internal glue liquid into the glue spraying plate 61, and spray the glue liquid on the surface of the corrugated core paper between the glue rollers 11, so as to scrape the excess glue liquid on the surface of the corrugated core paper passing under the gantry 200 to both sides;

[0048] As Figure 5 、 Figure 7 shown, in this embodiment, under the cooperation of the eccentric wheel 32 and the rocker 33, the scraper 300 can move left and right reciprocally. The scraper 300 squeezes the top plates 72 and the ejector rods 71 at both ends into the sealing tank 700, so that the slider 34 can slide inside the sealing tank 700, thereby forming a negative pressure on the right side of the slider 34. In this way, the suction nozzles on the surface of the adsorption plate 500 can adsorb the excess glue liquid scraped from both sides of the corrugated core paper through the negative pressure, and introduce it into the glue storage tank 41 through the glue liquid conduit 701 at the top. In this way, the excess glue liquid coated on the surface of the corrugated core paper on the frame 100 can be recycled and reused synchronously, avoiding excessive waste of glue liquid;

[0049] Embodiment 2:

[0050] Based on Embodiment 1, this embodiment introduces a multi-layer interface strengthening type corrugated core paper composite process and equipment. As Figures 4-7 shown, the sealing tanks 700 are fixedly installed on both sides of the gantry 200. The ejector rods 71 and the top plates 72 are respectively arranged at one end of the sealing tanks 700 close to the scraper 300. A slide plate 74 is slidably installed inside the sealing tanks 700. A first wedge 73 is fixedly installed at one end of the ejector rod 71 close to the top plate 72;

[0051] The trigger plates 800 are symmetrically arranged on both sides of the corrugated core paper at the top of the frame 100. A second wedge 82 is arranged at one end of the top of the trigger plate 800. The inclined surface of the second wedge 82 corresponds to the inclined surface of the first wedge 73 on the same side.

[0052] Wherein, one end of the ejector rod 71 is fixedly connected to the slide plate 74, and the other end of the ejector rod 71 is fixedly connected to the top plate 72. Guide grooves 211 are respectively formed on both sides of the inner wall of the guide rail 21, and guide rods 212 are fixedly installed in the inner walls of the guide grooves 211. A connecting plate 81 is fixedly installed between the top of the trigger plate 800 and the second wedge 82. One end of the second wedge 82 slides in the inner wall of the guide groove 211, and the end of the second wedge 82 away from the connecting plate 81 is movably nested outside the guide groove 211 on the same side. The trigger plate 800 is located above the adsorption plate 500 on the same side. A return spring 213 is fixedly installed between the second wedge 82 and the inner wall of the corresponding guide groove 211. When the two ends of the scraper 300 press against the top plate 72, the first wedge 73 can intermittently press against the corresponding second wedge 82 below, so that the connecting plate 81 at the bottom of the second wedge 82 and the trigger plate 800 can slightly strike both sides of the corrugated core paper below, so that after the glue enters the surface groove through the scraping of the scraper 300, it is vibrantly filled tightly, avoiding the problem of insufficient filling uniformity caused by the entry of air bubbles.

[0053] As Figures 4-6 shown, in this embodiment, when the scraper 300 reciprocates left and right to evenly scrape the surface glue of the corrugated core paper below, when the two ends of the scraper 300 press against the top plate 72, the first wedge 73 can intermittently press against the corresponding second wedge 82 below, so that the connecting plate 81 at the bottom of the second wedge 82 and the trigger plate 800 can slightly strike both sides of the corrugated core paper below, so that after the glue enters the surface groove through the scraping of the scraper 300, it is vibrantly filled tightly, avoiding the problem of insufficient filling uniformity caused by the entry of air bubbles.

[0054] Working principle: When the multi-layer interface reinforced corrugated core paper composite equipment is in use, when the corrugated core paper on the frame 100 is roll-pressed and conveyed to the gantry 200 by the glue roller 11, the glue spraying plate 61 in the middle of the gantry 200 can cooperate with the glue storage tank 41 and the circulation pump 42 to pump the internal glue into the glue spraying plate 61, and spray the glue on the surface of the corrugated core paper between the glue rollers 11;

[0055] Then, the servo motor 31 drives the rocker 33 to reciprocate left and right through the eccentric wheel 32. At the same time, the rocker 33 can drive the scraper 300 to swing up and down, so as to scrape the excess glue on the surface of the corrugated core paper passing below the gantry 200 to both sides;

[0056] When the scraper 300 can reciprocate left and right under the cooperation of the eccentric wheel 32 and the rocker 33, the scraper 300 squeezes the top plates 72 and the ejector rods 71 at both ends into the inside of the sealing tank 700, so that the slider 34 can slide inside the sealing tank 700, thereby forming a negative pressure on the right side of the slider 34. In this way, the suction nozzles on the surface of the adsorption plate 500 can adsorb the excess glue scraped from both sides of the corrugated core paper through the negative pressure, and introduce it into the glue storage tank 41 through the glue conduit 701 at the top. In this way, the excess glue coated on the surface of the corrugated core paper on the frame 100 can be recycled and reused synchronously, avoiding excessive waste of glue. At the same time, when the two ends of the scraper 300 press against the top plates 72, the first wedge 73 can intermittently press against the corresponding second wedge 82 below, so that the connecting plate 81 and the touch plate 800 at the bottom of the second wedge 82 can slightly touch and strike both sides of the corrugated core paper below. Thus, after the glue enters the surface grooves through the scraping of the scraper 300, it is vibrantly filled tightly, avoiding the problem of insufficient filling uniformity caused by the entry of air bubbles.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer interface strengthening corrugated core paper composite process and equipment, including a frame (100), a gantry (200), a scraper (300), and a glue spraying mechanism (600), characterized in that, It further includes: A glue storage mechanism (400), symmetrically arranged on both sides of the gantry (200). The glue storage mechanism (400) includes a glue storage tank (41), and a circulation pump (42) is fixedly installed on the top of the glue storage tank (41). The circulation pump (42) is communicated with the glue spraying mechanism (600); Adsorption plates (500) are arranged at the edges on both sides of the frame (100). Mounting frames (51) are respectively fixedly installed on the top of the frame (100) near the edges on both sides of the corrugated core paper. The adsorption plates (500) are fixedly installed on the corresponding mounting frames (51); The glue spraying mechanism (600) includes a glue spraying plate (61) fixedly installed on the middle part of the side of the gantry (200) away from the adsorption plate (500) through a bracket; Sealing tanks (700) are fixedly installed on both sides of the gantry (200). A push rod (71) and a top plate (72) are respectively arranged at one end of the sealing tank (700) close to the scraper (300). A sliding plate (74) is slidably installed inside the sealing tank (700). A first wedge (73) is fixedly installed at one end of the push rod (71) close to the top plate (72); Touch plates (800) are symmetrically arranged at the sides of the corrugated core paper on the top of the frame (100). A second wedge (82) is arranged at one end of the top of the touch plate (800). The inclined surface of the second wedge (82) corresponds to the inclined surface of the first wedge (73) on the same side.

2. The multi-layer interface strengthening corrugated core paper composite process and equipment according to claim 1, characterized in that: Glue rollers (11) are respectively rotatably installed on the brackets on both sides of the frame (100). A guide rail (21) is fixedly installed at the top of the inner wall of the gantry (200). A slider (34) is fixedly installed in the middle of the top surface of the scraper (300). The slider (34) slides in the middle chute at the bottom surface of the guide rail (21).

3. The multi-layer interface strengthening corrugated core paper composite process and equipment according to claim 2, characterized in that: A rocker (33) is slidably installed in the middle groove of the scraper (300). A servo motor (31) is fixedly installed on one side of the gantry (200) through a bracket. An eccentric wheel (32) is rotatably installed at one end of the rocker (33) close to the servo motor (31). The output end of the servo motor (31) is fixedly connected to the side surface of the eccentric wheel (32).

4. A multi-layer interface strengthening type corrugated core paper composite process and equipment according to claim 3, characterized in that: The glue storage tank (41) is fixedly installed on the outside of the gantry (200) through a bracket. The input end of the circulation pump (42) is communicated with the glue storage tank (41) through a connecting pipe. The output end of the circulation pump (42) is communicated with the input end of the glue spraying plate (61) through a connecting pipe.

5. A multi-layer interface strengthening type corrugated core paper composite process and equipment according to claim 4, characterized in that: A glue liquid conduit (701) is connected through between one end of the inner cavity of the sealing tank (700) close to the top plate (72) and the adsorption plate (500). The inner cavity of the sealing tank (700) is communicated with the glue storage tank (41) through a glue liquid conduit (701) on the side away from the sliding plate (74). And a one-way valve is installed on the glue liquid conduit (701) between the sealing tank (700) and the glue storage tank (41).

6. A multi-layer interface strengthening corrugated core paper composite process and equipment according to claim 5, characterized in that: The push rod (71) movably penetrates through to the inner side wall of the guide rail (21). The two top plates (72) respectively correspond to the two end parts of the scraper (300).

7. A multi-layer interface strengthening type corrugated core paper composite process and equipment according to claim 6, characterized in that: One end of the ejector rod (71) is fixedly connected to the sliding plate (74), and the other end of the ejector rod (71) is fixedly connected to the top plate (72). Guide grooves (211) are respectively formed on both sides of the inner wall of the guide rail (21), and guide rods (212) are fixedly installed in the inner walls of the guide grooves (211).

8. A multi-layer interface strengthening corrugated core paper composite process and equipment according to claim 7, characterized in that: A connecting plate (81) is fixedly installed between the top of the trigger plate (800) and the second wedge block (82). One end of the second wedge block (82) slides in the inner wall of the guide groove (211), and the end of the second wedge block (82) away from the connecting plate (81) is movably nested outside the guide groove (211) on the same side.

9. A multi-layer interface strengthening corrugated core paper composite process and equipment according to claim 8, characterized in that: The trigger plate (800) is located above the adsorption plate (500) on the same side, and a return spring (213) is fixedly installed between the second wedge block (82) and the inner wall of the corresponding guide groove (211).

10. A multi-layer interface strengthening corrugated core paper composite process according to claim 9, characterized in that: The technological steps adopted in the specific preparation and processing of the multi-layer composite corrugated core cardboard are as follows: S1. Paper cutting: Cut the kraft paper into the required size according to the requirements; S2. Grooving: Roll the side walls of the paper cut in step S1 into grooves by rolling; S3. Core paper adhesion: Uniformly coat the surface of the core paper with glue solution through the glue solution.

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