Kraft paper processing and pasting device

Abstract

The utility model relates to kraft paper processing technical field, especially kraft paper processing and pasting device, including organic frame, still including the pressing table, the output fixedly connected with pressing table of rack, the fixed seat is fixedly connected above pressing table, still including the pressing mechanism that has by electric push rod and pressure pad, the electric push rod is slidably connected in fixed seat bottom, the other end fixedly connected with pressure pad of electric push rod, and pressure pad is flexibly adjusted to exert on kraft paper pressure through electric push rod telescopic, the utility model discloses through the second linear transmission mechanism drive electric push rod moves on fixed seat, and electric push rod flexibly adjusts the pressure that pressure pad exerts to kraft paper, utilizes multiple pressing mechanism independent adjustment pressure point, provides different pressure pressing to different thickness kraft paper, ensures the pressure distribution on whole adhesive surface even, promotes the adaptability of device, utilizes the contactless gluing of injection valve to replace the contact type gluing of rubber roll, promotes the uniformity of gluing, effectively avoids the unstable adhesion strength.

Description

Technical Field

[0001] This utility model relates to the field of kraft paper processing technology, and in particular to a kraft paper processing and pasting device. Background Technology

[0002] Kraft paper is a high-strength packaging paper that is widely used in industry, food, and packaging due to its good tensile strength, bursting strength, and tear resistance. Single-layer kraft paper is relatively soft and easily deformed. By combining it with other materials, its tensile strength, tear resistance, and abrasion resistance can be significantly improved, extending its service life. Pasting or coating kraft paper with a film can effectively block moisture and improve its moisture-proof and waterproof performance.

[0003] When laminating kraft paper, a bonding device is required. After the glue is applied, most existing kraft paper bonding devices use a mechanical rolling device to press the kraft paper together. Since the pressure value of the pressure roller is fixed, applying the same pressure to kraft paper of different thicknesses can easily cause thinner paperboard to crack due to excessive pressure, resulting in glue overflow. Thicker paperboard may not be bonded firmly due to insufficient pressure, affecting the subsequent use of the kraft paper. Furthermore, when applying glue to the surface of the kraft paper, existing bonding devices use a pick-up roller to dip the glue and transfer it to a coating roller. The coating roller then rotates and applies the glue to the kraft paper. Due to the multi-stage glue transfer, the glue application is uneven, and the glue thickness is difficult to control.

[0004] Therefore, given that existing kraft paper pasting devices use rigid rollers to press kraft paper under constant pressure, which has poor adaptability and cannot adapt to kraft paper of different thicknesses, a kraft paper processing and pasting device can be designed. This device can be flexibly adjusted by using multiple pressure points to independently adjust and provide different pressures for uniform pressing of kraft paper of different thicknesses, thereby improving adaptability. Utility Model Content

[0005] To overcome the problem that most kraft paper pasting devices use a pair of pressure rollers to press all products, which cannot adapt to the pressing of kraft paper of different thicknesses, thinner kraft paper is prone to cracking and glue overflow, while thicker kraft paper results in weak adhesion, poor adaptability and affecting pasting efficiency.

[0006] The technical solution of this utility model is as follows: a kraft paper processing and pasting device, including a frame, a pressing table and a fixed seat, the output end of the frame is fixedly connected to the pressing table, and the fixed seat is fixedly connected above the pressing table; it also includes a pressing mechanism composed of an electric push rod and a pressing pad, the bottom of the fixed seat is slidably connected to the electric push rod, the other end of the electric push rod is fixedly connected to the pressing pad, and the pressing pad flexibly adjusts the pressure applied to the kraft paper by the extension and retraction of the electric push rod.

[0007] Preferably, a second linear transmission mechanism is installed inside the fixed base, and the pressing mechanism reciprocates on the fixed base through the second linear transmission mechanism.

[0008] Preferably, it also includes a first linear transmission mechanism, with slide rails fixedly connected to both ends of the output end of the frame near the pressing table, and sliding members slidably connected to the outside of the slide rails. An injection valve is installed on the top of the sliding member, and the injection valve moves on the slide rails through the first linear transmission mechanism.

[0009] Preferably, the input end of the frame is rotatably connected to a first unwinding roller, and a drive motor is installed at one end of the first unwinding roller.

[0010] Preferably, the output end of the frame is rotatably connected to a second unwinding roller group near the injection valve. The second unwinding roller group is arranged parallel to the first unwinding roller, and the tension adjusting roller is located between the first unwinding roller and the second unwinding roller group.

[0011] Preferably, a hot air blower is installed at the opening on one side of the frame.

[0012] Preferably, a downward slope is fixedly connected to the side of the pressing table near the hot air blower, and a recovery tank is opened at the end of the downward slope, which is located at the bottom of the frame.

[0013] The beneficial effects of this utility model are:

[0014] 1. Compared with existing kraft paper pasting devices, the electric push rod is driven to move on the fixed base through the second linear transmission mechanism. The electric push rod flexibly adjusts the pressure applied to the kraft paper by the pressure pad. Multiple pressing mechanisms independently adjust the pressure points to provide different pressure for kraft paper of different thicknesses, ensuring uniform pressure distribution on the entire bonding surface and improving the adaptability of the device.

[0015] 2. Using a jet valve for non-contact glue application instead of roller-based glue application improves the uniformity of glue application, precisely controls the glue thickness, and effectively avoids unstable bonding strength. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a kraft paper processing and pasting device according to this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the first unwinding roller of a kraft paper processing and pasting device according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the second unwinding roller group of a kraft paper processing and pasting device according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the pressing mechanism of a kraft paper processing and pasting device according to this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the hot air blower of a kraft paper processing and pasting device according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Frame; 101. Recycling tank; 102. Sliding ramp; 2. Pressing table; 201. Fixed base; 202. Electric push rod; 203. Second linear transmission mechanism; 204. Pressure pad; 3. First unwinding roller; 301. Drive motor; 4. Hot air blower; 5. Jet valve; 501. Slide rail; 502. Sliding component; 503. First linear transmission mechanism; 6. Second unwinding roller group; 601. Tension adjusting roller. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment: a kraft paper processing and pasting device, including a frame 1, a pressing table 2, and a fixed seat 201. The output end of the frame 1 is fixedly connected to the pressing table 2, and the fixed seat 201 is fixedly connected above the pressing table 2. It also includes a pressing mechanism composed of an electric push rod 202 and a pressure pad 204. The bottom of the fixed seat 201 is slidably connected to the electric push rod 202, and the other end of the electric push rod 202 is fixedly connected to the pressure pad 204. The pressure pad 204 can be flexibly adjusted to apply pressure to the kraft paper by the extension and retraction of the electric push rod 202.

[0024] Preferably, a second linear transmission mechanism 203 is installed inside the fixed base 201, and the pressing mechanism reciprocates on the fixed base 201 through the second linear transmission mechanism 203.

[0025] Among them, the pressure pad 204 is made of silicone material, abandoning the rigid pressure roller, and using the electric push rod 202 to flexibly adjust the pressing force to ensure uniform pressure distribution on the entire bonding surface;

[0026] The second linear transmission mechanism 203 adopts one of an electric cylinder, a linear motor, or a pneumatic cylinder mechanism;

[0027] After the kraft paper is coated with glue, it is placed on the pressing table 2. The second linear transmission mechanism 203 is activated to push the electric push rod 202 to move on the fixed seat 201. Then the electric push rod 202 is activated to push the pressure pad 204 to press the kraft paper. When kraft paper of different thicknesses passes through, the pressing force at each point can be adjusted to avoid excessive local pressure causing glue overflow or insufficient pressure causing glue separation.

[0028] Furthermore, it also includes a first linear transmission mechanism 503. The output end of the frame 1 is fixedly connected to both ends of the pressing table 2 with slide rails 501. Sliding parts 502 are slidably connected to the outside of the slide rails 501. A spray valve 5 is installed on the top of the sliding parts 502. The spray valve 5 moves on the slide rails 501 through the first linear transmission mechanism 503.

[0029] Among them, the spray valve 5 is driven by a solenoid valve, which blows out the glue with high-pressure gas to form tiny glue droplets or continuous glue lines.

[0030] The first linear transmission mechanism 503 adopts one of the following: a gear and rack mechanism, an electric cylinder, a linear motor, or a pneumatic cylinder mechanism;

[0031] When the kraft paper is sprayed with glue, the first linear transmission mechanism 503 is activated to drive the sliding member 502 to move back and forth on the slide rail 501, which in turn drives the spray valve 5 to move, so that the spray valve 5 sprays glue evenly onto the kraft paper.

[0032] Furthermore, the input end of the frame 1 is rotatably connected to a first unwinding roller 3, and a drive motor 301 is installed at one end of the first unwinding roller 3;

[0033] The output end of the frame 1 is rotatably connected to the second unwinding roller group 6 near the jet valve 5. The second unwinding roller group 6 is arranged parallel to the first unwinding roller 3, and the tension adjusting roller 601 is located between the first unwinding roller 3 and the second unwinding roller group 6.

[0034] The second unwinding roll group 6 includes two sets of unwinding rolls arranged in parallel.

[0035] The tension adjustment roller 601 is used to adjust the tension of the kraft paper to prevent the paper from being stretched, deformed, or broken.

[0036] By starting the drive motor 301, the first unwinding roller 3 is driven to rotate, releasing the kraft paper through the tension adjusting roller 601 and into the second unwinding roller group 6. While spraying glue, the kraft paper is conveyed into the pressing table 2.

[0037] Furthermore, a hot air blower 4 is installed at the opening on one side of the frame 1;

[0038] A sliding ramp 102 is fixedly connected to the side of the pressing table 2 near the hot air blower 4. A recycling tank 101 is opened at the end of the sliding ramp 102 and is located at the bottom of the frame 1.

[0039] After the kraft paper is pressed, push the paper on the pressing table 2 into the downward slope 102, and then into the recycling tank 101 along the downward slope 102. Start the hot air blower 4 to dry and cure the glue after pressing, so as to avoid damaging the bonding effect in the next process.

[0040] Through the above steps, compared with the existing kraft paper pasting device, the electric push rod 202 is driven to move on the fixed base 201 by the second linear transmission mechanism 203. The electric push rod 202 flexibly adjusts the pressure applied to the kraft paper by the pressure pad 204. By using multiple pressing mechanisms to independently adjust the pressure points, different pressure is provided for kraft paper of different thicknesses, ensuring uniform pressure distribution on the entire bonding surface and improving the adaptability of the device. The non-contact glue application by the spray valve 5 replaces the contact glue application by the glue roller, improving the uniformity of glue application, accurately controlling the glue thickness, and effectively avoiding unstable bonding strength.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A kraft paper processing and pasting device, comprising a frame (1), characterized in that: It also includes a pressing table (2) and a fixed seat (201). The output end of the frame (1) is fixedly connected to the pressing table (2), and the fixed seat (201) is fixedly connected above the pressing table (2). It also includes a pressing mechanism composed of an electric push rod (202) and a pressure pad (204). The bottom of the fixed seat (201) is slidably connected to the electric push rod (202), and the other end of the electric push rod (202) is fixedly connected to the pressure pad (204). The pressure pad (204) is flexibly adjusted by the extension and retraction of the electric push rod (202) to apply pressure to the kraft paper.

2. The kraft paper processing and pasting device according to claim 1, characterized in that: A second linear transmission mechanism (203) is installed inside the fixed base (201), and the pressing mechanism reciprocates on the fixed base (201) through the second linear transmission mechanism (203).

3. The kraft paper processing and pasting device according to claim 1, characterized in that: It also includes a first linear transmission mechanism (503), and slide rails (501) are fixedly connected to both ends of the output end of the frame (1) near the pressing table (2). Sliding parts (502) are slidably connected to the outside of the slide rails (501). A spray valve (5) is installed on the top of the sliding parts (502). The spray valve (5) moves on the slide rails (501) through the first linear transmission mechanism (503).

4. The kraft paper processing and pasting device according to claim 3, characterized in that: The input end of the frame (1) is rotatably connected to the first unwinding roller (3), and a drive motor (301) is installed at one end of the first unwinding roller (3).

5. The kraft paper processing and pasting device according to claim 4, characterized in that: The output end of the frame (1) is rotatably connected to the second unwinding roller group (6) near the jet valve (5). The second unwinding roller group (6) is arranged parallel to the first unwinding roller (3), and the tension adjusting roller (601) is located between the first unwinding roller (3) and the second unwinding roller group (6).

6. The kraft paper processing and pasting device according to claim 1, characterized in that: A hot air blower (4) is installed at the opening on one side of the frame (1).

7. The kraft paper processing and pasting device according to claim 6, characterized in that: The pressing table (2) is fixedly connected to a downward slope (102) on the side near the hot air blower (4). A recycling tank (101) is opened at the end of the downward slope (102) and the recycling tank (101) is opened at the bottom of the frame (1).

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