Kraft paper conveying and gluing mechanism of roll paper packaging machine

Abstract

The utility model discloses a kraft paper conveying and gluing mechanism of a roll paper packaging machine, which comprises a mounting rack, an input guide roller, a gluing device, a lower pressing roller, a clamping device, a cutting device and a lower pressing device, the input guide roller comprises an upper guide roller, a lower guide roller and an input motor, the input motor is arranged on the mounting rack, the lower guide roller is connected with an output shaft of the input motor, and the lower guide roller is connected with the lower pressing roller. The clamping device is located between the input guide roller and the lower pressing roller, the lower pressing device corresponds to the lower pressing roller, and the cutting device and the gluing device are both located between the lower pressing roller and the input guide roller. The kraft paper is glued through the gluing device, so that the kraft paper can be conveniently attached, manual adhesive tape pasting is not needed, and labor is saved; the cutting device is arranged, so that cutting of kraft paper is facilitated, manual cutting of an operator is not needed, and labor is saved; according to the whole mechanism, kraft paper is input through the input guide roller, the kraft paper can be tightly attached to roll paper to be wrapped through the downward pressing device, manual operation is not needed in the whole process, labor is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to an important structure of a roll paper packaging machine, in particular to a kraft paper conveying and gluing mechanism of the roll paper packaging machine. Background Art

[0002] For rolls of paper with high requirements for printing, decoration or other purposes, the weight of the entire roll of paper is relatively large. In order to prevent the surface of the roll of paper from being worn, it is necessary to wrap several layers of kraft paper around the periphery of the roll of paper. Many existing ones adopt a semi-automatic method, where the roll of paper is placed on the machine for rotation, and the kraft paper is manually pulled to wrap it, and then cut. After cutting, the kraft paper is attached to the roll of paper with adhesive tape. The whole process requires manual follow-up, with many processes, consuming a lot of manpower, and the packaging speed is slow. There are also some other semi-automatic structures, such as the application number 201821613886.7, which discloses a kraft paper packaging device for a semi-automatic finished roll of paper packaging line. It can be seen from the 23rd paragraph of the specification "In order to facilitate the placement of tools such as tape and cutters", that the device also uses manual tape sticking and manual cutting of kraft paper, both of which require manual operation. Utility Model Content

[0003] The utility model aims to provide a kraft paper conveying and gluing mechanism for a roll paper packaging machine which can solve at least one of the above problems.

[0004] According to one aspect of the utility model, a kraft paper conveying and gluing mechanism of a roll paper packaging machine is provided, comprising a mounting frame, an input guide roller, a gluing device, a lower pressure roller, a clamping device, a cutting device and a lower pressure device, wherein the input guide roller, the gluing device, the lower pressure roller, the clamping device and the cutting device are all arranged on the mounting frame, the input guide roller comprises an upper guide roller, a lower guide roller and an input motor, the upper guide roller and the lower guide roller are arranged opposite to each other, the input motor is arranged on the mounting frame, the lower guide roller is connected to the output shaft of the input motor, the clamping device is located between the input guide roller and the lower pressure roller, the lower pressure device corresponds to the lower pressure roller, and the cutting device and the gluing device are both located between the lower pressure roller and the input guide roller.

[0005] The beneficial effects of the utility model are as follows: by providing a gluing device, the kraft paper is glued by the gluing device when it starts to be wrapped on the roll paper and when the wrapping on the roll paper is completed, so that the kraft paper is closely attached, and there is no need for manual sticking of tape, thus saving labor; by providing a cutting device, the cutting of kraft paper is convenient, and there is no need for manual cutting by the operator, thus saving labor; the whole mechanism inputs the kraft paper by the input guide roller, and the pressing device can make the kraft paper close to the roll paper for wrapping, and the whole process does not require manual operation, thus saving labor and improving production efficiency.

[0006] In some embodiments, the pressing device includes an electric cylinder, which is installed at the bottom of the mounting frame. Thus, the mounting frame can be driven to rise and fall as a whole through the electric cylinder, thereby driving the pressing roller to move downward, which is conducive to the pressing roller being close to the paper roll, so that the kraft paper can be wrapped closely to the paper roll, ensuring the flatness of the kraft paper wrapping.

[0007] In some embodiments, the kraft paper conveying and gluing mechanism of the roll paper packaging machine further includes a buffer spring, mounting blocks are provided at both ends of the lower pressure roller, a telescopic rod is installed on the mounting block, the buffer spring is sleeved on the telescopic rod, the top end of the telescopic rod is installed on the mounting frame, and the two ends of the buffer spring are respectively in contact with the mounting block and the mounting frame. Thus, through the buffer spring, the lower pressure roller can move downward under the action of its own weight, and the lower pressure roller has a certain buffering and tensioning effect when contacting the roll paper, so that the lower pressure roller can act on the kraft paper smoothly.

[0008] In some embodiments, the glue coating device includes a rubber roller, a glue barrel, a lifting cylinder and a first motor, the lifting cylinder is installed at the bottom of the mounting frame, the first motor is installed on the outside of the glue barrel, the rubber roller is located in the glue barrel, the two ends of the rubber roller are sleeved on the glue barrel, one end of which is connected to the first motor, the lifting cylinder is located below the glue barrel, the piston rod of the lifting cylinder is connected to the bottom of the glue barrel, and the rubber roller is located between the lower pressure roller and the input guide roller. Thus, the lifting cylinder can drive the entire glue barrel and the rubber roller to move upward, so that the rubber roller acts on the kraft paper, so that the kraft paper has glue, which is convenient for the kraft paper to be glued to the corresponding position.

[0009] In some embodiments, the clamping device includes a second motor, a conveyor belt, a pulley, and a clamping cylinder, the second motor is arranged on a mounting frame, the clamping cylinder is mounted on the conveyor belt, the pulley is arranged on the mounting frame, the conveyor belt is sleeved on the pulley, the pulley is connected to the output shaft of the second motor, the length direction of the conveyor belt is arranged along the conveying direction of the kraft paper, the clamping cylinder is mounted on the conveyor belt, and the two ends of the conveyor belt correspond to the input guide roller and the lower pressure roller respectively. Thus, by providing a clamping cylinder, the side of the kraft paper can be clamped for conveying, and the kraft paper can be clamped and moved to the lower pressure roller.

[0010] In some embodiments, the cutting device comprises a cutting knife, and the cutting knife is located between the input guide roller and the rubber roller. Thus, the kraft paper is cut by the cutting knife.

[0011] In some embodiments, the kraft paper conveying and gluing mechanism of the roll paper packaging machine further includes an input plate, which is arranged on the mounting frame, is located at the output end of the input guide roller, and extends to one side of the rubber roller, and is provided with a strip-shaped opening, which corresponds to the cutting knife. Thus, by providing the input plate, it is convenient for the kraft paper to be gradually conveyed along the input plate after being fed under the action of the input guide roller, and to be conveyed above the rubber roller, and to be clamped and conveyed by the clamping device.

[0012] In some embodiments, the kraft paper conveying and gluing mechanism of the roll paper packaging machine further includes a pressing block and a pressing cylinder, the pressing block is located above the input plate, the pressing cylinder is located above the pressing block, the cylinder body of the pressing cylinder is fixed on the mounting frame, the piston rod is connected to the pressing block, the pressing block is in a U-shape with an opening downward, and the two sides of the pressing block are respectively located on the two sides of the strip opening. Thus, through the pressing block and the pressing cylinder, when the cutting knife cuts the kraft paper, the pressing block presses the kraft paper tightly to ensure the flatness of the cutting.

[0013] In some embodiments, the kraft paper conveying and gluing mechanism of the roll paper packaging machine further includes a first guide rod, a second guide rod, a third guide rod and a fourth guide rod, the kraft paper is sequentially wound around the first guide rod, the second guide rod, the third guide rod and the input guide roller, the fourth guide rod is located above the third guide rod, and the fourth guide rod is located outside the input guide roller. Thus, by providing a plurality of guide rods, the input of the kraft paper can be guided, which is convenient for the flatness of the kraft paper conveying.

[0014] In some embodiments, the kraft paper conveying and gluing mechanism of the roll paper packaging machine further includes a baffle, which is located above the rubber roller and is arranged corresponding to the rubber roller. Thus, by providing the baffle, the kraft paper can be prevented from being pushed upward during gluing, thereby ensuring the gluing range of the kraft paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic structural diagram of a kraft paper conveying and gluing mechanism of a roll paper packaging machine.

[0016] Figure 2 The utility model is a schematic diagram of the structure of the kraft paper conveying and gluing mechanism of the roll paper packaging machine except the mounting frame and the pressing device.

[0017] Figure 3 The utility model is a schematic diagram of the structure of a clamping device and a gluing device in a kraft paper conveying and gluing mechanism of a roll paper packaging machine.

[0018] Figure 4 The utility model is a structural schematic diagram of a gluing device and an input plate in a kraft paper conveying and gluing mechanism of a roll paper packaging machine. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Reference Figure 1 to Figure 4 The kraft paper conveying and gluing mechanism of the roll paper packaging machine comprises a mounting frame 1, an input guide roller 2, a gluing device 3, a lower pressure roller 4, a clamping device 5, a cutting device 6 and a lower pressure device 7. The input guide roller 2, the gluing device 3, the lower pressure roller 4, the clamping device 5 and the cutting device 6 are all arranged on the mounting frame 1. The input guide roller 2 comprises an upper guide roller 21, a lower guide roller 22 and an input motor 23. The upper guide roller 21 is arranged opposite to the lower guide roller 22. The input motor 23 is arranged on the mounting frame 1. The lower guide roller 22 is connected to the output shaft of the input motor 23. The clamping device 5 is located between the input guide roller 2 and the lower pressure roller 4. The lower pressure device 7 corresponds to the lower pressure roller 4. The cutting device 6 and the gluing device 3 are both located between the lower pressure roller 4 and the input guide roller 2.

[0021] In actual use, the kraft paper is input through the input guide roller 2. Specifically, the output shaft of the input motor 23 drives the lower guide roller 22 to rotate, and the lower guide roller 22 drives the upper guide roller 21 to rotate. The kraft paper is clamped between the upper and lower guide rollers and conveyed forward. When the kraft paper is conveyed to the clamping device 5, the clamping device 5 clamps both sides of the kraft paper and conveys it to the lower pressing roller 4. The lower pressing roller 4 presses the kraft paper on the roll paper. As the roll paper rotates, the kraft paper is wrapped on the roll paper. When the front end of the kraft paper passes through the gluing device 3, the gluing device 3 applies glue to the bottom end surface of the kraft paper. Therefore, when the kraft paper starts to contact the roll paper, it can be tightly attached to the roll paper through the glue; when the kraft paper is wrapped around the roll paper and is in place, the cutting device 6 cuts the kraft paper, and the gluing device 3 applies glue below the tail end of the kraft paper, so that the tail end of the kraft paper is also tightly attached through the glue, thereby eliminating the need for manual tape application, saving labor and improving overall work efficiency.

[0022] The pressing device 7 includes an electric cylinder 71, which is installed at the bottom of the mounting frame 1. In order to facilitate the smooth lifting of the mounting frame 1, an electric cylinder 71 is provided on both sides of the bottom of the mounting frame 1 to improve the stability of the force of the mounting frame 1.

[0023] The kraft paper conveying and gluing mechanism of the roll paper packaging machine of the utility model also includes a buffer spring 8, mounting blocks 9 are provided at both ends of the lower pressure roller 4, a telescopic rod 10 is installed on the mounting block 9, the buffer spring 8 is sleeved on the telescopic rod 10, and the top end of the telescopic rod 10 is installed on the mounting frame 1, and the two ends of the buffer spring 8 are respectively abutted against the mounting block 9 and the mounting frame 1.

[0024] When the kraft paper is delivered to the lower pressure roller 4, the piston rod of the electric cylinder 71 moves downward, pulling the entire mounting frame 1 downward, so that the lower pressure roller 4 is pressed against the outer periphery of the paper roll. Due to the gravity of the lower pressure roller 4, the lower pressure roller 4 moves downward and can maintain a close contact with the paper roll, thereby ensuring the flatness of the kraft paper on the paper roll. By providing a buffer spring 8, when the lower pressure roller 4 presses the kraft paper, as the number of turns of the kraft paper increases, there is a certain amount of room for movement, ensuring the normal winding of the kraft paper and keeping the kraft paper pressed against the paper roll at all times.

[0025] When the number of turns of kraft paper on the roll reaches the corresponding packaging requirement, the piston rod of the electric cylinder 71 extends to push the mounting frame 1 upward, thereby driving the lower pressure roller 4 upward together, so that the lower pressure roller 4 leaves the roll, which is convenient for packaging the next roll of paper.

[0026] The glue coating device 3 includes a rubber roller 31, a glue barrel 32, a lifting cylinder 33 and a first motor 34. The lifting cylinder 33 is installed at the bottom of the mounting frame 1, and the first motor 34 is installed on the outside of the glue barrel 32. The rubber roller 31 is located in the glue barrel 32. Both ends of the rubber roller 31 are sleeved on the glue barrel 32, and one end is connected to the first motor 34. The lifting cylinder 33 is located below the glue barrel 32. The piston rod of the lifting cylinder 33 is connected to the bottom of the glue barrel 32. The rubber roller 31 is located between the lower pressure roller 4 and the input guide roller 2. The lifting cylinder 33 can drive the glue barrel 32 to rise and fall. When the piston rod of the lifting cylinder 33 extends upward, the glue barrel 32 moves upward; when the piston rod of the lifting cylinder 33 moves downward, the entire glue barrel 32 is driven downward. The first motor 34 can drive the rubber roller 31 to rotate. The glue barrel 32 is open, which is convenient for timely replenishment of the glue in the glue barrel 32 and also convenient for cleaning the glue barrel 32 .

[0027] When in use, glue is loaded into the glue barrel 32; driven by the first motor 34, the rubber roller 31 rotates, and the bottom end of the rubber roller 31 can contact the glue. Therefore, as the rubber roller 31 rotates, the entire periphery of the rubber roller 31 is covered with glue. Therefore, when the kraft paper is used to pack the roll paper, the head and the tail of the kraft paper need to be coated with glue. When the kraft paper is coated with glue, the lifting cylinder 33 pushes the entire glue barrel 32 upward, so that the rubber roller 31 is also upward, so that the glue on the rubber roller 31 can be coated on the kraft paper, which facilitates the kraft paper to be tightly attached by glue.

[0028] In actual use, the kraft paper conveying and gluing mechanism of the roll paper packaging machine further includes a baffle 90, which is located above the rubber roller 31 and is arranged corresponding to the rubber roller 31. When the kraft paper needs to be glued, the baffle 90 limits the upper end surface of the kraft paper so that the kraft paper is clamped between the baffle 90 and the rubber roller 31 to prevent the kraft paper from being pushed upward under the action of the rubber roller 31, so that the kraft paper is in a flat state above the rubber roller 31, which is convenient for the uniformity of gluing the kraft paper.

[0029] The clamping device 5 includes a second motor 51 (not shown in the figure), a transmission belt 52, a pulley 53 and a clamping cylinder 54. The second motor is arranged on the mounting frame, the clamping cylinder 54 is installed on the transmission belt 52, the pulley 53 is arranged on the mounting frame 1, the transmission belt 52 is sleeved on the pulley 53, the pulley 53 is connected to the output shaft of the second motor 51, the length direction of the transmission belt 52 is arranged along the conveying direction of the kraft paper, the clamping cylinder 54 is installed on the transmission belt 52, and the two ends of the transmission belt 52 correspond to the input guide roller 2 and the lower pressure roller 4 respectively. Among them, the connection and matching mode of the transmission belt 52 and the pulley 53 is the existing technology, the pulley 53 and the transmission belt 52 are two groups, respectively located on both sides of the mounting frame 1, and the clamping cylinder 54 is two, which is convenient for clamping the two sides of the kraft paper and conducive to the smooth conveying of the kraft paper.

[0030] When the kraft paper is transported to the clamping device 5, the clamping cylinder 54 clamps the kraft paper, and the second motor 51 drives the conveying belt 52 to transmit, thereby driving the clamping cylinder 54 to move together with the conveying belt 52, thereby realizing the transportation of the kraft paper. Under the clamping and conveying action of the clamping cylinder 54, the kraft paper is transported to the lower pressure roller.

[0031] The cutting device 6 includes a cutting knife 61, which is located between the input guide roller 2 and the rubber roller 31. In order to facilitate the cutting of kraft paper by the cutting knife 61, a slide rail 11 is installed on the mounting frame 1, and a slider is installed on the slide rail 11, and the cutting knife 61 is fixed on the slider; a rodless cylinder is installed below the cutting knife 61, and the rodless cylinder can drive the cutting knife 61 to move along the slide rail 11, thereby realizing the cutting of kraft paper.

[0032] The kraft paper conveying and gluing mechanism of the roll paper packaging machine of the utility model further comprises an input plate 20, which is arranged on the mounting frame 1, is located at the output end of the input guide roller 2, and extends to one side of the glue roller 31, and is provided with a strip opening 201, which corresponds to the cutting knife 61. The input plate 20 is a flat plate, so that after the kraft paper is input under the action of the upper and lower guide rollers, it can be guided and moved on the input plate 20 and moved to the clamping device 5, and the kraft paper is continuously clamped and conveyed by the clamping device 5, and is conveyed to the lower pressure roller to package the roll paper.

[0033] The strip-shaped opening 201 facilitates the movement of the cutting knife 61 on the slide rail 11 , so that the cutting knife 61 can normally cut the kraft paper input on the input board 20 .

[0034] The kraft paper conveying and gluing mechanism of the roll paper packaging machine also includes a pressing block 30 and a pressing cylinder 40. The pressing block 30 is located above the input plate 20. The pressing cylinder 40 is located above the pressing block 30. The cylinder body of the pressing cylinder 40 is fixed on the mounting frame 1. The piston rod is connected to the pressing block 30. The pressing block 30 is in a U-shape with an opening downward. The two sides of the pressing block 30 are respectively located on the two sides of the strip opening 201. Specifically, when the cutting knife 61 needs to cut the kraft paper, the pressing cylinder 40 pushes the pressing block 30 downward to press it tightly. The pressing block 30 is pressed tightly on the kraft paper, that is, the kraft paper on both sides of the strip opening 201 is pressed tightly by the pressing block 30, so as to prevent the kraft paper from shifting when the cutting knife 61 cuts the kraft paper, thereby ensuring the flatness of the cutting.

[0035] The kraft paper conveying and gluing mechanism of the roll paper packaging machine of the utility model further comprises a first guide rod 50, a second guide rod 60, a third guide rod 70 and a fourth guide rod 80. The kraft paper is sequentially wound around the first guide rod 50, the second guide rod 60, the third guide rod 70 and the input guide roller 2. The fourth guide rod 80 is located above the third guide rod 70 and the fourth guide rod 80 is located outside the input guide roller 2. Among them, the second guide rod 60 is located below the first guide rod 50, the third guide rod 70 is located below the second guide rod 60, and the fourth guide rod 80 is located between the second guide rod and the fourth guide rod 80, so as to guide the kraft paper before it is sent to the input guide roller, and ensure the tension and flatness of the kraft paper. By providing the fourth guide rod 80, the kraft paper can be prevented from being scraped against the input guide roller before it is sent to the input guide roller.

[0036] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. The kraft paper conveying and gluing mechanism of the roll paper packaging machine is characterized by: The invention comprises a mounting frame (1), an input guide roller (2), a gluing device (3), a lower pressure roller (4), a clamping device (5), a cutting device (6) and a lower pressure device (7); the input guide roller (2), the gluing device (3), the lower pressure roller (4), the clamping device (5) and the cutting device (6) are all arranged on the mounting frame (1); the input guide roller (2) comprises an upper guide roller (21), a lower guide roller (22) and an input motor (23); the upper guide roller (21) and the lower guide roller (22) are arranged opposite to each other; the input motor (23) is arranged on the mounting frame (1); the lower guide roller (22) is connected to the output shaft of the input motor (23); the clamping device (5) is located between the input guide roller (2) and the lower pressure roller (4); the lower pressure device (7) corresponds to the lower pressure roller (4); the cutting device (6) and the gluing device (3) are all located between the lower pressure roller (4) and the input guide roller (2).

2. The kraft paper conveying and gluing mechanism of the roll paper packaging machine according to claim 1 is characterized in that: The pressing device (7) comprises an electric cylinder (71), and the electric cylinder (71) is installed at the bottom of the mounting frame (1).

3. The kraft paper conveying and gluing mechanism of the roll paper packaging machine according to claim 2 is characterized in that: It also includes a buffer spring (8), the two ends of the lower pressure roller (4) are provided with mounting blocks (9), a telescopic rod (10) is installed on the mounting block (9), the buffer spring (8) is sleeved on the telescopic rod (10), the top end of the telescopic rod (10) is installed on the mounting frame (1), and the two ends of the buffer spring (8) are respectively in contact with the mounting block (9) and the mounting frame (1).

4. The kraft paper conveying and gluing mechanism of the roll paper packaging machine according to any one of claims 1 to 3, characterized in that: The glue coating device (3) comprises a rubber roller (31), a glue barrel (32), a lifting cylinder (33) and a first motor (34); the lifting cylinder (33) is mounted at the bottom of the mounting frame (1); the first motor (34) is mounted on the outside of the glue barrel (32); the rubber roller (31) is located in the glue barrel (32); both ends of the rubber roller (31) are sleeved on the glue barrel (32), one end of which is connected to the first motor (34); the lifting cylinder (33) is located below the glue barrel (32); the piston rod of the lifting cylinder (33) is connected to the bottom of the glue barrel (32); and the rubber roller (31) is located between the lower pressure roller (4) and the input guide roller (2).

5. The kraft paper conveying and gluing mechanism of the roll paper packaging machine according to claim 4, characterized in that: The clamping device (5) comprises a second motor (51), a transmission belt (52), a pulley (53) and a clamping cylinder (54), wherein the second motor is arranged on a mounting frame, the clamping cylinder (54) is mounted on the transmission belt, the pulley (53) is arranged on the mounting frame (1), the transmission belt (52) is sleeved on the pulley (53), the pulley (53) is connected to the output shaft of the second motor (51), the length direction of the transmission belt (52) is arranged along the conveying direction of the kraft paper, the clamping cylinder (54) is mounted on the transmission belt (52), and the two ends of the transmission belt (52) correspond to the input guide roller (2) and the lower pressure roller (4) respectively.

6. The kraft paper conveying and gluing mechanism of the roll paper packaging machine according to claim 5, characterized in that: The cutting device (6) comprises a cutting knife (61), and the cutting knife (61) is located between the input guide roller (2) and the rubber roller (31).

7. The kraft paper conveying and gluing mechanism of the roll paper packaging machine according to claim 6, characterized in that: It also includes an input plate (20), the input plate (20) being arranged on the mounting frame (1), the input plate (20) being located at the output end of the input guide roller (2) and extending to one side of the rubber roller (31), the input plate (20) being provided with a strip-shaped opening (201), the strip-shaped opening (201) corresponding to the cutting knife (61).

8. The kraft paper conveying and gluing mechanism of the roll paper packaging machine according to claim 7, characterized in that: It also includes a pressing block (30) and a pressing cylinder (40), wherein the pressing block (30) is located above the input plate (20), and the pressing cylinder (40) is located above the pressing block (30). The cylinder body of the pressing cylinder (40) is fixed on the mounting frame (1), and the piston rod is connected to the pressing block (30). The pressing block (30) is in a U-shape with an opening facing downward, and two sides of the pressing block (30) are respectively located on two sides of the strip-shaped opening (201).

9. The kraft paper conveying and gluing mechanism of the roll paper packaging machine according to any one of claims 1 to 3, characterized in that: The invention also comprises a first guide rod (50), a second guide rod (60), a third guide rod (70) and a fourth guide rod (80), wherein the kraft paper is sequentially wound around the first guide rod (50), the second guide rod (60), the third guide rod (70) and the input guide roller (2), wherein the fourth guide rod (80) is located above the third guide rod (70), and the fourth guide rod (80) is located outside the input guide roller (2).

10. The kraft paper conveying and gluing mechanism of the roll paper packaging machine according to claim 4, characterized in that: It also includes a baffle (90), which is located above the rubber roller (31) and is arranged corresponding to the rubber roller (31).

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