A safety self-locking mechanism for the paper unloading table of a rewinder

Abstract

The present invention provides a safety self-locking mechanism for a paper unloading platform of a rewinder, belonging to the field of paper rewinders. The mechanism comprises a rewinder, wherein the rewinder is movably connected to a paper unloading hopper, the paper unloading hopper being provided with a packing space, the paper unloading hopper being connected to a rotating mechanism, the paper unloading hopper being driven by the rotating mechanism to rotate, the paper unloading hopper being connected to a self-locking mechanism, and the self-locking mechanism being located at the exit of the packing space or / and at both ends of the packing space. The advantage of the self-locking mechanism is that the self-locking mechanism is located at the exit of the packing space or / and at both ends of the packing space. The self-locking mechanism can prevent the paper tube on the paper unloading hopper from rotating toward a worker, causing the paper tube to press on the worker and causing an accident, or from the paper unloading hopper falling due to damage to the rotating mechanism, causing the paper tube to rotate toward the worker and causing an accident, thereby ensuring the personal safety of the worker.

Description

Technical Field

[0001] The invention belongs to the field of paper rewinding machines, and in particular relates to a safety self-locking mechanism for a paper unloading platform of a rewinding machine. Background Art

[0002] After use, the paper roll of a rewinder needs to be removed. Manual removal of the roll from the unloading platform is typically laborious and requires two people for large rolls. However, there are also systems that automatically roll the roll down by raising and lowering the unloading platform. The rewinder first rolls the paper into a roll. When removing the roll, workers manually apply tape to prevent the paper from unrolling as it rolls down. To facilitate manual tape application, the unloading hopper is lowered to the taping position. However, this position is typically very low, and the unloading platform is loaded with at least 5 tons of paper rolls. The platform's support is provided by a hydraulic cylinder. During tape application, the excessive weight often causes the hydraulic cylinder to lose pressure, such as when a pipe ruptures, causing the paper roll to slip from the hopper, potentially causing personal injury.

[0003] For example, a Chinese patent document discloses a paper unloading roller device for a rewinder [patent application number: CN201520489038.X]. The device comprises a paper unloading platform, a guide platform, and a transport platform. The guide platform is located downstream of the paper unloading platform. The guide platform includes a bracket and a guide surface. The bracket consists of support rods and a support plate. The support rods are mounted below the support plate and support the support plate. There are at least three sets of support rods, and their heights decrease in equidistant order, thereby tilting the support plate at an angle. The guide surface is fixedly mounted on the support plate. The highest point of the guide surface is lower than the paper unloading platform, and the lowest point is higher than the transport platform. A speed bump is fixedly mounted on the guide surface. The transport platform is located at the end of the guide platform. The transport platform includes a body with rollers on the bottom and a groove for accommodating the paper roller. This invention saves time and effort, improves work efficiency, and reduces safety hazards. However, workers are required to manually apply the paper rolls when removing the paper rolls, but the device lacks a self-locking protection device to prevent accidents caused by the paper rolls rotating toward the worker during the application process. Summary of the Invention

[0004] The object of the present invention is to provide a safety self-locking mechanism for a paper unloading platform of a rewinding machine in view of the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A safety self-locking mechanism for a paper unloading platform of a rewinder includes a rewinder, the rewinder is movably connected to a paper unloading bucket, the paper unloading bucket is provided with a packing space, the paper unloading bucket is connected to a rotating mechanism, the paper unloading bucket rotates under the drive of the rotating mechanism, the paper unloading bucket is connected to a self-locking mechanism, and the self-locking mechanism is located at the exit of the packing space and / or at both ends of the packing space.

[0007] In the above-mentioned safety self-locking mechanism of the paper unloading platform of the rewinder, the self-locking mechanism includes a plurality of orifice plates with through holes, and each end of the packaging space has a orifice plate arranged on the paper unloading bucket. Each orifice plate corresponds to a pin shaft, and the pin shaft is connected to the insertion mechanism. The pin shaft extends into the corresponding orifice plate under the drive of the insertion mechanism.

[0008] In the above-mentioned safety self-locking mechanism of the paper unloading table of the rewinder, the insertion mechanism includes a tape reference table, the upper end surface of the tape reference table is the tape reference surface, the upper end surface of the tape reference table is provided with a cylinder, and the piston rod of the cylinder is connected to the pin shaft.

[0009] In the above-mentioned safety self-locking mechanism of the paper unloading platform of the rewinder, at least two guide plates are provided on the side of the tape reference platform close to the paper unloading bucket, and the pin shaft slides through the two guide plates.

[0010] In the above-mentioned safety self-locking mechanism of the paper unloading platform of the rewinder, the self-locking mechanism also includes a plurality of anti-fall plates located at the exit of the packaging space and arranged on the paper unloading bucket. One end of the anti-fall plate is rotatably connected to the paper unloading bucket, and the other end can extend to the exit of the packaging space. The anti-fall plate is also provided with a locking mechanism, and the anti-fall plate is clamped with the paper unloading bucket under the drive of the locking mechanism.

[0011] In the above-mentioned safety self-locking mechanism of the paper unloading platform of the rewinding machine, the locking mechanism includes a locking shaft that is slidably penetrated by the anti-fall plate, and a locking plate is provided on the locking shaft. The anti-fall plate is also provided with two transverse locking cavities that are arranged parallel to each other and adapted to the locking plate. A vertical locking cavity that is arranged perpendicular to the transverse locking cavity and adapted to the locking plate is connected between the two transverse locking cavities, and a handle is provided at the end of the locking shaft away from the paper unloading bucket.

[0012] In the above-mentioned safety self-locking mechanism of the paper unloading platform of the rewinder, the paper unloading bucket is provided with a plurality of engaging holes corresponding to the locking shafts one by one, and the engaging holes are located at the lower side of the packaging space.

[0013] In the above-mentioned safety self-locking mechanism of the paper unloading platform of the rewinding machine, the rotating mechanism includes several oil cylinders arranged in sequence along the transverse direction of the paper unloading bucket, the piston rods of the oil cylinders are rotatably connected to the bottom of the paper unloading bucket, and there is also a supporting rotating platform between the rewinding machine and the several oil cylinders. A sliding adjustment block is slidably connected to the supporting rotating platform, and a rotating shaft is passed through the paper unloading bucket, and the rotating shaft is rotatably connected to the sliding adjustment block.

[0014] In the above-mentioned safety self-locking mechanism of the paper unloading platform of the rewinder, the upper end surface of the paper unloading bucket is arranged in an arc shape.

[0015] In the above-mentioned safety self-locking mechanism of the paper unloading platform of the rewinder, two rewinding shafts are provided in the middle of the upper end surface of the paper unloading bucket, there is a gap between the two rewinding shafts, and the upper end surfaces of the two rewinding shafts extend out of the paper unloading bucket and extend into the packaging space, and the rewinding shafts are connected to a rotation drive device.

[0016] Compared with the existing technology, the advantages of the present invention are:

[0017] 1. The self-locking mechanism of the present invention is located at the exit of the packaging space and / or at both ends of the packaging space. The self-locking mechanism can prevent the paper tube on the paper unloading bucket from rotating toward the worker, causing the paper tube to press on the worker and cause an accident, or the paper unloading bucket from falling due to damage to the rotating mechanism, causing the paper tube to rotate toward the worker and cause an accident, thereby ensuring the personal safety of the workers.

[0018] 2. The self-locking mechanism of the present invention comprises several orifice plates with through-holes, each of which corresponds to a pin. The pin is connected to a penetration mechanism and driven by the penetration mechanism to extend into the corresponding orifice plate. The pin is locked in the orifice plate to prevent the paper unloading bucket from falling, thereby preventing the paper roll from rolling and pressing against the worker, causing an accident.

[0019] 3. The self-locking mechanism of the present invention also includes a plurality of anti-fall plates located at the exit of the packaging space and arranged on the paper unloading bucket. The anti-fall plates are engaged with the paper unloading bucket under the drive of the locking mechanism, thereby blocking the exit of the packaging space, thereby preventing the paper tube from rotating toward the worker and causing the paper tube to press on the worker and cause an accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of a paper unloading hopper;

[0022] Figure 3 It is a schematic structural diagram of the entirety of the present invention;

[0023] Figure 4 It is a structural diagram of the interlacing mechanism;

[0024] Figure 5 It is a structural diagram of the locking mechanism;

[0025] Figure 6 yes Figure 1 Schematic diagram of the structure of the middle support turntable.

[0026] In the figure: rewinder 10, paper unloading bucket 11, packaging space 12, rotating mechanism 13, self-locking mechanism 14, orifice plate 15, pin 16, insertion mechanism 17, tape reference platform 18, tape reference surface 19, cylinder 20, guide plate 21, anti-fall plate 22, locking mechanism 23, locking shaft 24, locking plate 25, horizontal locking cavity 26, handle 27, snap-on hole 28, oil cylinder 29, supporting rotating platform 30, sliding adjustment block 31, rotating shaft 32, rewinding shaft 33, vertical locking cavity 34. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Combine Figure 1-6 As shown, a safety self-locking mechanism for a paper unloading platform of a rewinder includes a rewinder 10, wherein the rewinder 10 is movably connected to a paper unloading bucket 11, and the paper unloading bucket 11 is provided with a packing space 12. The paper unloading bucket 11 is connected to a rotating mechanism 13, and the paper unloading bucket 11 rotates under the drive of the rotating mechanism 13. The paper unloading bucket 11 is connected to a self-locking mechanism 14, and the self-locking mechanism 14 is located at the exit of the packing space 12 and / or at both ends of the packing space 12.

[0029] In this embodiment, after the paper is rolled into a paper roll on the paper unloading bucket 11, the rotating mechanism 13 is operated to first rotate the paper unloading bucket 11 downward by a certain distance to facilitate manual tape pasting. When the worker pastes the tape, the self-locking mechanism 14 can prevent the paper roll on the paper unloading bucket 11 from rotating toward the worker, causing the paper roll to press on the worker and cause an accident, or the paper unloading bucket 11 from falling due to damage to the rotating mechanism 13, thereby causing the paper roll to rotate toward the worker and causing an accident, thereby ensuring the personal safety of the workers.

[0030] The self-locking mechanism 14 includes a plurality of orifice plates 15 with through holes. Each end of the packaging space 12 has a orifice plate 15 arranged on the paper unloading bucket 11. Each orifice plate 15 corresponds to a pin shaft 16. The pin shaft 16 is connected to the insertion mechanism 17. The pin shaft 16 extends into the corresponding orifice plate 15 under the drive of the insertion mechanism 17.

[0031] In this embodiment, when the paper unloading bucket 11 is moved to a position convenient for workers to stick tape under the drive of the rotating mechanism 13, the positions of several orifice plates 15 correspond one-to-one to the positions of several pin shafts 16. The pin shafts 16 are driven by the insertion mechanism 17 to extend into the corresponding orifice plates 15. Once the rotating mechanism 13 is damaged and the paper unloading bucket 11 falls, the pin shafts 16 will be stuck in the orifice plate 15 to prevent the paper unloading bucket 11 from falling, thereby preventing the paper tube from rolling and pressing towards the worker and causing an accident.

[0032] The insertion mechanism 17 includes a tape reference platform 18 , the upper end surface of the tape reference platform 18 is a tape reference surface 19 , and the upper end surface of the tape reference platform 18 is provided with a cylinder 20 , and the piston rod of the cylinder 20 is connected to the pin 16 .

[0033] In this embodiment, the rotating mechanism 13 operates to move the paper discharge hopper 11 to a position where its upper end surface is flush with the tape reference surface 19. At this point, the pins 16 and the corresponding holes in the orifice plates 15 are in corresponding positions. The cylinder 20 then operates to move its piston rod toward the corresponding orifice plates 15, thereby pushing the pins 16 into the corresponding orifice plates 15.

[0034] At least two guide plates 21 are provided on one side of the tape base platform 18 close to the paper discharge bucket 11 , and the pin shaft 16 slides through the two guide plates 21 .

[0035] In this embodiment, the guide plate 21 plays a supporting role. When the rotating mechanism 13 is damaged and causes the paper unloading bucket 11 to fall, if there is no guide plate 21 to support the pin shaft 16, the weight of the paper unloading bucket 11 will easily directly damage the cylinder 20 and cause it to break, and eventually the paper unloading bucket 11 will fall. The guide plate 21 can support the weight of the paper unloading bucket 11, further improving safety.

[0036] The self-locking mechanism 14 also includes a plurality of anti-fall plates 22 located at the exit of the packaging space 12 and arranged on the paper unloading bucket 11. One end of the anti-fall plate 22 is rotatably connected to the paper unloading bucket 11, and the other end can extend to the exit of the packaging space 12. The anti-fall plate 22 is also provided with a locking mechanism 23. The anti-fall plate 22 is connected to the paper unloading bucket 11 under the drive of the locking mechanism 23.

[0037] In this embodiment, in the initial state, i.e., when the paper unloading hopper 11 is still winding paper into paper rolls, the ends of the anti-drop plates 22 rotate and extend to the exit of the packaging space 12. The locking mechanism 23 prevents the anti-drop plates 22 from further rotation, thereby blocking the exit of the packaging space 12. During the rotation of the paper unloading hopper 11, if the paper roll moves toward the exit of the packaging space 12 due to its own gravity and the inertial force generated by the rotation, the anti-drop plates 22 will block the paper roll and prevent it from falling out of the paper unloading hopper 11, thereby preventing the paper roll from rotating toward the worker and pressing on the worker, causing an accident.

[0038] The locking mechanism 23 includes a locking shaft 24 that is slidably passed through the anti-fall plate 22, and a locking plate 25 is provided on the locking shaft 24. The anti-fall plate 22 is also provided with two transverse locking cavities 26 that are arranged parallel to each other and adapted to the locking plate 25. The two transverse locking cavities 26 are connected to a vertical locking cavity 34 that is arranged perpendicular to the transverse locking cavity 26 and adapted to the locking plate 25. The end of the locking shaft 24 away from the paper unloading bucket 11 is provided with a handle 27.

[0039] In this embodiment, when the anti-drop plate 22 is engaged with the paper hopper 11, the locking plate 25 is positioned within the transverse locking cavity 26 adjacent to the paper hopper 11, causing the locking shaft 24 to extend beyond the anti-drop plate 22 and into the paper hopper 11, engaging it. After the worker completes the pasting process, they rotate the handle 27, causing the locking shaft 24 to rotate with the locking plate 25. This first causes the locking plate 25 to rotate 90° and pull the handle 27 outward, allowing the locking plate 25 to pass through the vertical locking cavity 34. The locking plate 25 is then rotated 90°, positioning itself within the transverse locking cavity 26 away from the paper hopper 11, allowing the locking shaft 24 to extend into the anti-drop plate 22. The anti-drop plate 22 is then rotated to open the exit of the packaging space 12. The paper hopper 11 continues to rotate downward under the action of the rotation mechanism 13, causing the paper roll to roll out of the paper hopper 11 under its own weight, completing the unloading of the paper roll.

[0040] Preferably, the paper discharge bucket 11 is provided with a plurality of engaging holes 28 corresponding one-to-one to the locking shafts 24 , and the engaging holes 28 are located at the lower side of the packaging space 12 .

[0041] When the locking shaft 24 is engaged with the paper discharge hopper 11, the locking shaft 24 can extend to the upper end surface of the paper discharge hopper 11, achieving a locking effect. However, this can easily damage the upper end surface of the paper discharge hopper 11 for rolling paper. Therefore, in this embodiment, when in the engaged state, the locking shaft 24 extends into the corresponding engaging hole 28.

[0042] The rotating mechanism 13 includes several oil cylinders 29 arranged in sequence along the paper unloading bucket 11 in the horizontal direction. The piston rod of the oil cylinder 29 is rotatably connected to the bottom of the paper unloading bucket 11. There is also a supporting rotating platform 30 between the rewinder 10 and the several oil cylinders 29. A sliding adjustment block 31 is slidably connected to the supporting rotating platform 30. A rotating shaft 32 is passed through the paper unloading bucket 11, and the rotating shaft 32 is rotatably connected to the sliding adjustment block 31.

[0043] In this embodiment, the paper unloading bucket 11 rotates under the driving force of several oil cylinders 29. Since the movement direction of the piston rod of the oil cylinder 29 is certain, the paper unloading bucket 11 is rotated with the rotating shaft 32 as the center and the position is adjusted by moving the sliding adjustment block 31 to prevent the piston rod of the oil cylinder 29 from being stuck.

[0044] The upper end surface of the paper discharge bucket 11 is arranged in an arc shape.

[0045] In this embodiment, when the paper unloading bucket 11 rotates to the tape reference plane 19, the center of the upper end surface of the curved surface of the paper unloading bucket 11 is at the lowest point of the upper end surface of the paper unloading bucket 11, thereby preventing the paper roll from rolling out of the paper unloading bucket 11.

[0046] Two rewinding shafts 33 are provided in the middle of the upper end surface of the paper unloading bucket 11, with a gap between the two rewinding shafts 33, and the upper end surfaces of the two rewinding shafts 33 extend out of the paper unloading bucket 11 and extend into the packaging space 12, and the rewinding shafts 33 are connected to a rotation drive device.

[0047] In this embodiment, the rotational drive device is a rotary motor that drives the rewinding shaft 33 to rotate, thereby promoting the rotation of the paper roll and continuously winding the paper. When the paper discharge hopper 11 rotates to the tape reference plane 19, the center of the upper end surface of the curved surface of the paper discharge hopper 11 is at the lowest point of the upper end surface of the paper discharge hopper 11, and the two rewinding shafts 33 are located on both sides of this center. At this time, the lowest point of the paper roll is located between the rewinding shafts 33 and below the upper end surface of the rewinding shafts 33. If the paper roll wants to roll out of the paper discharge hopper 11, it must roll over the rewinding shafts 33, further preventing the paper roll from falling.

[0048] The present invention operates as follows: After paper is rolled into a roll in the paper discharge hopper 11, the hydraulic cylinder 29 operates, causing the paper discharge hopper 11 to rotate downward to a position corresponding to the tape reference surface 19. At this point, the cylinder 20 operates, causing its piston rod to move toward the corresponding orifice plate 15, thereby pushing the pin 16 into the corresponding orifice plate 15. After the worker completes the pasting process, they rotate the handle 27, causing the locking shaft 24 to rotate with the locking plate 25. This first causes the locking plate 25 to rotate 90° and pull the handle 27 outward, allowing the locking plate 25 to pass through the vertical locking cavity 34. The locking plate 25 then rotates 90°, positioning itself within the transverse locking cavity 26 away from the paper discharge hopper 11, allowing the locking shaft 24 to extend into the anti-drop plate 22. The anti-drop plate 22 then rotates, opening the exit of the packaging space 12. The hydraulic cylinder continues to rotate the paper discharge hopper 11 downward, causing the paper roll to roll out of the hopper 11 under its own weight, completing the unloading of the paper roll.

[0049] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0050] Although this article uses the rewinder 10, paper unloading bucket 11, packaging space 12, rotating mechanism 13, self-locking mechanism 14, orifice plate 15, pin 16, insertion mechanism 17, tape reference platform 18, tape reference surface 19, cylinder 20, guide plate 21, anti-fall plate 22, locking mechanism 23, locking shaft 24, locking plate 25, transverse locking cavity 26, handle 27, snap-on hole 28, oil cylinder 29, supporting rotating platform 30, sliding adjustment block 31, rotating shaft 32, rewinding shaft 33, vertical locking cavity 34, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A safety self-locking mechanism for a paper unloading platform of a rewinding machine, comprising a rewinding machine (10), characterized in that: The rewinder (10) is movably connected to a paper discharge hopper (11), a packaging space (12) is provided on the paper discharge hopper (11), the paper discharge hopper (11) is connected to a rotating mechanism (13), the paper discharge hopper (11) rotates under the drive of the rotating mechanism (13), the paper discharge hopper (11) is connected to a self-locking mechanism (14), the self-locking mechanism (14) is located at the exit of the packaging space (12) or / and at both ends of the packaging space (12), the self-locking mechanism (14) further includes a plurality of self-locking mechanisms (14) located at the exit of the packaging space (12) and arranged on the paper discharge hopper (11). The anti-drop plate (22) is provided on the paper unloading bucket (11), one end of the anti-drop plate (22) is rotatably connected to the paper unloading bucket (11), and the other end can extend to the outlet of the packaging space (12). The anti-drop plate (22) is also provided with a locking mechanism (23). The anti-drop plate (22) is driven by the locking mechanism (23) to form a card connection with the paper unloading bucket (11). The locking mechanism (23) includes a locking shaft (24) slidingly penetrated by the anti-drop plate (22). The locking shaft (24) is provided with a locking plate (25). The anti-drop plate (22) is also provided with two mutually parallel and mutually parallel locking plates (25). The two transverse locking cavities (26) are connected to a vertical locking cavity (34) which is arranged perpendicular to the transverse locking cavity (26) and adapted to the locking plate (25). The end of the locking shaft (24) away from the paper unloading bucket (11) is provided with a handle (27). The self-locking mechanism (14) includes a plurality of orifice plates (15) with through holes. Each end of the packaging space (12) has a orifice plate (15) arranged on the paper unloading bucket (11). Each orifice plate (15) corresponds to a pin shaft (16). The pin shaft (16) is connected to the insertion machine The pin shaft (16) is driven by the insertion mechanism (17) to extend into the corresponding orifice plate (15). The insertion mechanism (17) includes a tape reference platform (18). The upper end surface of the tape reference platform (18) is a tape reference surface (19). The upper end surface of the tape reference platform (18) is provided with a cylinder (20). The piston rod of the cylinder (20) is connected to the pin shaft (16). At least two guide plates (21) are provided on the side of the tape reference platform (18) close to the paper unloading bucket (11). The pin shaft (16) slides through the two guide plates (21).

2. A safety self-locking mechanism for a paper unloading platform of a rewinding machine according to claim 1, characterized in that: The paper unloading bucket (11) is provided with a plurality of engaging holes (28) corresponding one to one with the locking shafts (24), and the engaging holes (28) are located at the lower side of the packaging space (12).

3. A safety self-locking mechanism for a paper unloading platform of a rewinding machine according to any one of claims 1-2, characterized in that: The rotating mechanism (13) includes a plurality of oil cylinders (29) arranged in sequence along the transverse direction of the paper unloading bucket (11), the piston rods of the oil cylinders (29) are rotatably connected to the bottom of the paper unloading bucket (11), and a supporting rotating platform (30) is provided between the rewinder (10) and the plurality of oil cylinders (29). A sliding adjustment block (31) is slidably connected in the supporting rotating platform (30), and a rotating shaft (32) is provided in the paper unloading bucket (11), and the rotating shaft (32) is rotatably connected to the sliding adjustment block (31).

4. A safety self-locking mechanism for a paper unloading platform of a rewinding machine according to any one of claims 1-2, characterized in that: The upper end surface of the paper unloading bucket (11) is arranged in an arc shape.

5. A safety self-locking mechanism for a paper unloading platform of a rewinding machine according to claim 4, characterized in that: Two rewinding shafts (33) are provided in the middle of the upper end surface of the paper unloading bucket (11), with a gap between the two rewinding shafts (33), and the upper end surfaces of the two rewinding shafts (33) extend out of the paper unloading bucket (11) and into the packaging space (12), and the rewinding shafts (33) are connected to a rotation drive device.

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