Shaft pulling and paper unloading device for turnover positioning of paper for daily use

Abstract

The invention discloses a shaft pulling and paper unloading device for overturning and positioning household paper, which comprises an overturning and paper unloading assembly arranged between a preset rewinding discharge channel and an unloading channel, the overturning paper unloading assembly comprises a supporting tipping bucket used for bearing a paper roll, a tipping bucket driving unit used for driving the supporting tipping bucket to conduct fixed-axis overturning action and at least one set of positioning devices, and the supporting tipping bucket is driven by the tipping bucket driving unit to conduct fixed-axis overturning action. The supporting tipping bucket is correspondingly and circularly turned over and switched among a preset paper receiving state, a shaft pulling state and a paper feeding state, and when the supporting tipping bucket is in the paper receiving state, a bucket opening of the supporting tipping bucket is aligned with a rewinding discharging channel to receive a paper roll; when the supporting tipping bucket is in a shaft pulling state, a bucket opening of the supporting tipping bucket faces upwards so as to fixedly lift a paper roll. When the supporting tipping bucket is in a paper feeding state, a bucket opening of the supporting tipping bucket is aligned with the discharging channel so as to dump paper rolls. And the positioning device is used for stopping and positioning the supporting tipping bucket in a shaft pulling state.

Description

Technical Field

[0001] The invention relates to the technical field of household paper equipment, in particular to a shaft-pulling and paper-unloading device for turning over and positioning household paper. Background Art

[0002] At present, paper slitting and rewinding machines generally adopt a winding state with a winding shaft. A paper core sleeve is sleeved on the winding mandrel, and the paper web is wound around the paper core for winding. After the paper roll is wound, the winding mandrel is separated from the sleeve, and the sleeve remains in the paper roll. After the winding mandrel is pulled out, a new paper core sleeve is sleeved to prepare for winding the next roll of paper.

[0003] There are two ways to pull the winding mandrel out of the paper roll: manual and mechanical. If the mandrel has a small diameter and is light in weight, it can be pulled out manually. If the mandrel has a large diameter or is too long and is heavy to be lifted manually, mechanical assistance is required, such as the patent "CN220334287U, a paper roll shaft puller for household paper". Since the gap between the winding mandrel and the inner hole of the paper tube is very small, the shaft puller trolley of the buckled mandrel needs to move horizontally along the extension line of the mandrel core line as much as possible to minimize the friction between the mandrel and the inner hole of the sleeve. Generally, the shaft puller frame is fixed to the ground, and the shaft puller lifting frame can be lifted up and down, and the transverse trolley with the mandrel buckle on it can move left and right. Therefore, how to achieve the positioning of the paper roll with the mandrel is a big problem for those skilled in the art. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a shaft-pulling and paper-unloading device which can adapt to paper rolls of different diameters, occupy a small space, and can stably and reliably turn over and position household paper.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a flipping and positioning shaft-pulling paper unloading device for household paper, comprising a flipping and unloading assembly arranged between a preset rewinding and discharging channel and a discharging channel, wherein the flipping and unloading assembly comprises a supporting bucket for supporting a paper roll, a bucket driving unit for driving the supporting bucket to perform a fixed-axis flipping action, and at least one group of positioning devices, wherein the supporting bucket is driven by the bucket driving unit to cyclically flip and switch between a preset paper receiving state, a shaft-pulling state and a paper feeding state, when the supporting bucket is in the paper receiving state, the bucket mouth of the supporting bucket is aligned with the rewinding and discharging channel to receive the paper roll; when the supporting bucket is in the shaft-pulling state, the bucket mouth of the supporting bucket faces upward to fix and lift the paper roll; when the supporting bucket is in the paper feeding state, the bucket mouth of the supporting bucket is aligned with the discharging channel to dump the paper roll; the positioning device stops and positions the supporting bucket in the shaft-pulling state.

[0006] Furthermore, the overturning and unloading paper assembly also includes a fixed support to which the supporting tipping bucket is hinged, wherein the supporting tipping bucket performs a fixed-axis overturning action around a hinge point between the supporting tipping bucket and the fixed support.

[0007] Furthermore, at least one end face of the supporting tipping bucket is provided with a positioning block for cooperating with a positioning stop of the positioning device, and each group of the positioning blocks performs a synchronous flipping action with the supporting tipping bucket, wherein the positioning device includes a limit stop block for cooperating with the positioning block, and a positioning drive unit for driving the limit stop block to move in a directional manner, and the limit stop block moves in a directional manner to extend into or exit the flipping path of the positioning block from the shaft pulling state to the paper feeding state.

[0008] Furthermore, the positioning device also includes a flip positioning seat for installing a limit block, and the positioning drive unit acts on the flip positioning seat to drive the flip positioning seat to perform a fixed-axis flipping action, and the flip positioning seat drives the limit block to flip synchronously so that the limit block flips accordingly and extends into or exits the flipping path of the positioning block.

[0009] Furthermore, the limit stopper is a limit screw with an adjustable height relative to the flip positioning seat, and the limit screw is threadedly connected to the flip positioning seat.

[0010] Furthermore, the positioning device also includes a sliding guide sleeve seat for sliding connection of the limit stopper, and the positioning drive unit acts on the limit stopper to drive the limit stopper to translate relative to the sliding guide sleeve seat and extend into or out of the flipping path of the positioning block.

[0011] Furthermore, the positioning device also includes a sliding base, which is formed with a vertical guide hole extending vertically and for the sliding guide sleeve seat to be slidably embedded, wherein the sliding base is provided with adjustment units that are in contact with the sliding guide sleeve seat at the upper and lower positions of the outer edge of the vertical guide hole.

[0012] The present invention adopts the above-mentioned scheme, and its beneficial effects are: 1) Through the automatic flipping action of the flipping paper unloading assembly, the automatic reception, fixed lifting and dumping of the paper roll are realized, which reduces manual operation and improves production efficiency. 2) The positioning device ensures the precise positioning of the supporting bucket when switching between different working states, avoids the position deviation of the paper roll during the unloading process, and ensures the stable transmission of the paper roll. In summary, the flipping and positioning shaft-pulling paper unloading device of the present invention has significant advantages in improving production efficiency, ensuring operating accuracy, saving space, simplifying operating procedures, enhancing adaptability, ensuring unloading stability and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the application of the shaft pulling and paper unloading device.

[0014] Figure 2This is a schematic diagram of the supporting tipping bucket of the shaft-pulling and paper-unloading device in the paper receiving state.

[0015] Figure 3 This is a schematic diagram of the supporting bucket of the shaft pulling and paper unloading device in the shaft pulling state.

[0016] Figure 4 This is a schematic diagram of the supporting bucket of the shaft-pulling and paper-unloading device in the paper-feeding state.

[0017] Figure 5 It is a schematic diagram of the supporting tipping bucket in the paper receiving state according to the first embodiment.

[0018] Figure 6 It is a schematic diagram of the supporting dump bucket in the axle-pulling state according to the first implementation mode.

[0019] Figure 7 It is a schematic diagram of the supporting tipping bucket in the paper feeding state according to the first embodiment.

[0020] Figure 8 It is a schematic diagram of the supporting tipping bucket in the paper receiving state according to the second embodiment.

[0021] Fig. 9 It is a schematic diagram of the supporting dump bucket in the axle-pulling state according to the second implementation mode.

[0022] Fig.10 It is a schematic diagram of the supporting tipping bucket in the paper feeding state according to the second implementation mode.

[0023] Fig.11 It is a schematic diagram of the supporting dump bucket and the positioning device of the second implementation mode.

[0024] Fig.12 This is a schematic diagram of a positioning device according to a second embodiment.

[0025] Among them, 10-rewinding discharge channel, 20-discharging channel, 1-supporting tipping bucket, 11-positioning block, 12-fixed support, 2-tipping bucket driving unit, 3-positioning device, 31-limit block, 32-turning positioning seat, 33-positioning driving unit, 34-adjusting unit, 35-sliding guide sleeve seat, 36-sliding base, A-paper roll, a-angle center line, b-turning path. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention is described more fully below with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0027] See attached Figure 1-12As shown, in this embodiment, a paper unloading device for turning over and positioning household paper is used to adapt to the existing rewinding machine, slitting machine and puller, and realizes the functions of paper connection, pull-out positioning and paper unloading of the rewound paper roll A through a single assembly, so as to achieve a multi-purpose effect of one machine. Specifically, it includes a turning over and unloading assembly arranged between a preset rewinding discharge channel 10 and a discharge channel 20, wherein the turning over and unloading assembly includes a supporting bucket 1 for supporting the paper roll A, a bucket driving unit 2 for driving the supporting bucket 1 to perform a fixed-axis turning action, and a positioning device 3.

[0028] In this embodiment, the longitudinal cross-section of the supporting bucket 1 is in a "V-shaped" structure. The flipping and unloading assembly also includes a fixed support 12 to which the supporting bucket 1 is hinged, wherein the supporting bucket 1 performs a fixed-axis flipping action around the hinge point between the supporting bucket 1 and the fixed support 12 (i.e., the bottom of the supporting bucket 1 is provided with a transverse axis passing through a preset transverse hole of the fixed support 12 to achieve a flipping action of the two relative to each other around the transverse axis). The bucket driving unit 2 preferably adopts a hydraulic or pneumatic telescopic part, whose telescopic end is pivotally connected to the bottom of the supporting bucket 1, and whose main body is pivotally connected to a preset base, thereby, the supporting bucket 1 is driven to perform a corresponding flipping action through the telescopic action of the bucket driving unit 2.

[0029] Based on this, the supporting tipping bucket 1 is driven by the tipping bucket driving unit 2 to cyclically flip and switch between the preset paper receiving state, the shaft pulling state and the paper feeding state.

[0030] Specifically, when the supporting bucket 1 is in the paper receiving state, the bucket mouth of the supporting bucket 1 is aligned with the rewinding discharge channel 10 to receive the paper roll A, that is, the paper roll A with the winding shaft is sent out along the rewinding discharge channel 10 after the rewinding operation is completed, and then rolls through the bucket mouth into the supporting bucket 1 that has been pre-turned into place, thereby realizing the receiving function of the paper roll A.

[0031] Specifically, when the supporting bucket 1 is in the shaft pulling state, the bucket mouth of the supporting bucket 1 faces upward to fix and lift the paper roll A, that is: after the paper roll A rolls off the supporting bucket 1, the supporting bucket 1 is driven by the bucket driving unit 2 to flip and switch from the paper receiving state to the shaft pulling state, so that the supporting bucket 1 holds the paper roll A, so that the shaft puller can axially pull out the winding shaft of the paper roll A (the shaft pulling operation here can refer to the relevant technical scheme described in "CN220334287U, a shaft puller for paper roll A of household paper", and those skilled in the art can adopt the derived shaft pulling method, which will not be elaborated here).

[0032] Furthermore, in order to facilitate the accuracy of the shaft pulling operation, when the supporting bucket 1 is in the shaft pulling state, the angle center line a of the supporting bucket 1 is in the vertical direction, so that no matter the diameter of the paper roll A rolling into the supporting bucket 1, its center is just on the angle center line a of the supporting bucket 1, so that the winding shaft is just in the vertical plane, so that the shaft puller only needs to perform lifting and lowering actions to adapt to paper rolls A of different diameters.

[0033] Specifically, when the supporting bucket 1 is in the paper feeding state, the bucket mouth of the supporting bucket 1 is aligned with the unloading channel 20 to dump the paper roll A, that is: after completing the shaft pulling operation, the supporting bucket 1 is driven by the bucket driving unit 2 to flip and switch from the shaft pulling state to the paper feeding state, so that the bucket mouth of the supporting bucket 1 is aligned with the unloading channel 20, so that the paper roll A is no longer restricted from rolling to the unloading channel 20 through the bucket mouth; and after the paper roll A rolls away from the supporting bucket 1, the supporting bucket 1 can be driven by the bucket driving unit 2 to flip and switch from the paper feeding state to the paper receiving state to wait for the next paper roll A.

[0034] In summary, by supporting the tipping bucket 1 to cyclically flip and switch between the paper receiving state, the shaft pulling state and the paper feeding state, continuous paper receiving, positioning and paper feeding operations of the paper roll A can be achieved.

[0035] In this embodiment, the positioning device 3 stops and positions the supporting bucket 1 in the shaft-pulling state, further ensuring that the angle centerline a of the supporting bucket 1 is in the vertical direction. Specifically, at least one end face of the supporting bucket 1 is provided with a positioning block 11 for the positioning device 3 to cooperate with the positioning stopper, and each group of positioning blocks 11 performs a synchronous flipping action with the supporting bucket 1. One positioning block 11 is matched with one positioning device 3. For the convenience of explanation, the following definition is that both end faces of the supporting bucket 1 are provided with a positioning block 11. Accordingly, two groups of positioning devices 3 are respectively arranged adjacent to the two end positions of the supporting bucket 1. Those skilled in the art may also adopt a derivative method of a single positioning block 11 matched with a single group of positioning devices 3, which is not specifically limited here.

[0036] In this embodiment, the positioning device 3 includes a limit stopper 31 for cooperating with the positioning block 11, and a positioning drive unit 33 for driving the limit stopper 31 to move in a directional manner. The limit stopper 31 moves in a directional manner to extend into or exit the flipping path b between the positioning block 11 and the paper feeding state, that is, when the limit stopper 31 moves into the flipping path b of the positioning block 11, the limit stopper 31 can stop and position the positioning block 11, so that the supporting bucket 1 stops more accurately at the rated position when switching from the flipping state to the pulling state, so as to ensure that the angle center line a of the supporting bucket 1 is in the vertical direction. On the contrary, when the limit stopper 31 moves out of the flipping path b of the positioning block 11, the positioning block 11 is no longer stopped and limited, so that the supporting bucket 1 can flip and switch from the pulling state to the paper feeding state.

[0037] In order to facilitate the understanding of the above-mentioned positioning device 3, further explanation is given below in combination with two implementation modes.

[0038] Embodiment 1: The positioning device 3 also includes a flip positioning seat 32 for installing the limit stop 31 (the flip positioning seat 32 is pre-pivoted on a preset base). The positioning drive unit 33 here preferably adopts a hydraulic or pneumatic telescopic member, whose telescopic end is pivoted to the flip positioning seat 32 and whose body is pivoted on a preset base. Thus, the telescopic action of the positioning drive unit 33 is used to drive the flip positioning seat 32 to perform a top axis flipping action, thereby causing the limit stop 31 to perform a flipping action synchronously, thereby causing the limit stop 31 to flip accordingly and extend into or exit the flip path b of the positioning block 11. Secondly, in order to enable the limit stop block 31 to adapt to the supporting dump bucket 1 at different height positions, the limit stop block 31 of the first embodiment is a limit screw with adjustable height relative to the flip positioning seat 32, and the limit screw is threadedly connected to the flip positioning seat 32. The limit screw is adjusted by screwing to change the height position of the limit screw relative to the flip positioning seat 32 accordingly, thereby solving the production and assembly conditions such as tolerances in the actual mechanical manufacturing and installation process, so that the limit stop block 31 can be adjusted to the appropriate position to position the supporting dump bucket 1, ensuring that the angle center line a of the supporting dump bucket 1 remains in the vertical direction.

[0039] Embodiment 2: The positioning device 3 also includes a sliding guide sleeve seat 35 for sliding connection of the limit block 31, and a sliding base 36. The positioning drive unit 33 acts on the limit block 31 to drive the limit block 31 to translate relative to the sliding guide sleeve seat 35 and extend into or exit the flipping path b of the positioning block 11. Specifically, the telescopic end of the positioning drive unit 33 is connected to the limit block 31 through a preset connecting plate, and the positioning drive unit 33 is fixed on the sliding guide sleeve seat 35. Thus, the telescopic action of the positioning drive unit 33 drives the limit block 31 to move horizontally relative to the sliding guide sleeve seat 35 via the connecting plate, thereby realizing the limit block 31 to translate into or exit the flipping path b of the positioning block 11. Secondly, the sliding base 36 is formed with a vertical guide hole extending vertically and for the sliding guide sleeve seat 35 to be slidably embedded, wherein the sliding base 36 is provided with adjustment units 34 that contact and cooperate with the sliding guide sleeve seat 35 at the upper and lower positions of the outer edge of the vertical guide hole. The adjustment units 34 here are screws threadedly connected to the sliding base 36, and the two groups of adjustment units 34 are respectively screwed at the upper and lower positions of the outer edge of the vertical guide hole to correspondingly push the sliding guide sleeve seat 35 to move up and down along the vertical guide hole. Specifically, when the sliding guide sleeve seat 35 needs to move up, the upper and lower adjustment units 34 are screwed up to move the adjustment units 34 located at the upper and lower positions. The lower adjusting unit 34 pushes the sliding guide sleeve seat 35 to rise; conversely, when the sliding guide sleeve seat 35 needs to move downward, the upper and lower adjusting units 34 are screwed downward so that the adjusting unit 34 at the upper portion pushes the sliding guide sleeve seat 35 to lower; thereby adjusting the height position of the sliding guide sleeve seat 35 and the limit stopper 31 to adapt to the support bucket 1 at different height positions, and also can solve the production and assembly conditions such as tolerances in the actual mechanical manufacturing and installation process, so that the limit stopper 31 can be adjusted to the appropriate position to position the support bucket 1, and ensure that the angle center line a of the support bucket 1 remains in the vertical direction.

[0040] In summary, the positioning device 3 of the above-mentioned embodiments 1 and 2 can realize the stop positioning of the supporting bucket 1 in the shaft pulling state, and can avoid interference when the supporting bucket 1 needs to be flipped from the shaft pulling state to the paper feeding state to avoid affecting the normal flipping action.

[0041] In summary, the above-mentioned shaft-pulling and paper-unloading device has the following characteristics: 1. Automatic adaptability: With the help of precise stop positioning function, the supporting bucket can automatically adapt to paper rolls A of different diameters without manual adjustment, which improves the convenience and efficiency of operation.

[0042] 2. Precise positioning: The positioning device ensures that the center line of the angle of the supporting bucket is in the vertical direction when the shaft is pulled out, ensuring the precise position of the paper roll A, thereby ensuring the accuracy of subsequent processing.

[0043] 3. Continuous operation capability: The supporting bucket switches cyclically between the paper receiving, shaft pulling and paper feeding states, realizing the continuous paper receiving, positioning and paper feeding operations of paper roll A, thus improving production efficiency.

[0044] 4. Stability: The stopper positioning of the supporting bucket in the shaft-pulling state ensures its stability and reliability, and reduces the risk of damage to the paper roll A due to the instability of the bucket.

[0045] 5. Flexibility: The design of the positioning device allows the supporting bucket to be adjusted at different heights to accommodate paper rolls A of different sizes, increasing the flexibility and applicability of the equipment.

[0046] 6. Simplified operation: Through the automated flip switching mechanism, the operation process is simplified, manual intervention is reduced, and the operation complexity and labor intensity are reduced.

[0047] 7. Structural optimization: Two implementation methods of the positioning device are considered in the design, providing structural optimization options to meet different production needs and space constraints.

[0048] 8. Easy maintenance: The design of the positioning device makes maintenance and adjustment easy, facilitates daily maintenance work, and extends the service life of the equipment.

[0049] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any technician familiar with the art who, without departing from the scope of the technical solution of the present invention, makes more possible changes and modifications to the technical solution of the present invention using the technical content disclosed above, or modifications are all equivalent embodiments of the present invention. Therefore, any equivalent and equivalent changes made according to the ideas of the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A paper unloading device for turning and positioning household paper, characterized in that: The invention comprises a paper turning and unloading assembly arranged between a preset rewinding discharge channel (10) and a discharge channel (20), wherein the paper turning and unloading assembly comprises a supporting bucket (1) for supporting a paper roll (A), a bucket driving unit (2) for driving the supporting bucket (1) to perform a fixed axis turning action, and at least one set of positioning devices (3); the supporting bucket (1) is driven by the bucket driving unit (2) to cause the supporting bucket (1) to turn and rotate cyclically between a preset paper receiving state, an axis pulling state and a paper feeding state. When the supporting bucket (1) is in a paper receiving state, the bucket opening of the supporting bucket (1) is aligned with the rewinding discharge channel (10) to receive the paper roll (A); when the supporting bucket (1) is in a shaft pulling state, the bucket opening of the supporting bucket (1) faces upward to fix and lift the paper roll (A); when the supporting bucket (1) is in a paper feeding state, the bucket opening of the supporting bucket (1) is aligned with the discharge channel (20) to dump the paper roll (A); the positioning device (3) stops and positions the supporting bucket (1) in the shaft pulling state.

2. The device for unloading paper by pulling out the shaft and turning over and positioning the daily paper according to claim 1, characterized in that: The paper turning and unloading assembly further comprises a fixed support (12) to which the supporting tipping bucket (1) is hingedly connected, wherein the supporting tipping bucket (1) performs a fixed-axis turning action around a hinge point between the supporting tipping bucket (1) and the fixed support (12).

3. The device for unloading paper by pulling out the shaft and turning over and positioning the paper according to claim 1, characterized in that: At least one end surface of the supporting tipping bucket (1) is provided with a positioning block (11) for cooperating with the positioning device (3) for positioning and stopping, and each group of the positioning blocks (11) performs a synchronous turning action with the supporting tipping bucket (1), wherein the positioning device (3) comprises a limit stop block (31) for cooperating with the positioning block (11) for stopping, and a positioning drive unit (33) for driving the limit stop block (31) to move in a directional manner, and the limit stop block (31) moves in a directional manner to extend into or out of a turning path (b) between the turning of the positioning block (11) from a shaft pulling state to a paper feeding state.

4. The device for unloading paper by pulling out the shaft and turning over and positioning the paper for daily use according to claim 3, characterized in that: The positioning device (3) further comprises a flip positioning seat (32) for mounting the limit stopper (31); the positioning drive unit (33) acts on the flip positioning seat (32) to drive the flip positioning seat (32) to perform a fixed-axis flipping action; the flip positioning seat (32) drives the limit stopper (31) to perform a synchronous flipping action so that the limit stopper (31) correspondingly flips and extends into or exits the flipping path (b) of the positioning block (11).

5. The device for unloading paper by pulling out the shaft and turning over and positioning the daily paper according to claim 4, characterized in that: The limit stopper (31) is a limit screw rod with adjustable height relative to the flip positioning seat (32); the limit screw rod is threadedly connected to the flip positioning seat (32).

6. The device for unloading paper by pulling out the shaft and turning over and positioning the daily paper according to claim 3, characterized in that: The positioning device (3) further comprises a sliding guide sleeve seat (35) for sliding connection with the limit stopper (31), and the positioning drive unit (33) acts on the limit stopper (31) to drive the limit stopper (31) to translate relative to the sliding guide sleeve seat (35) and extend into or out of the flipping path (b) of the positioning block (11).

7. The device for unloading paper by pulling out the shaft and turning over and positioning the paper according to claim 6, characterized in that: The positioning device (3) further comprises a sliding base (36), the sliding base (36) being formed with a vertical guide hole extending vertically and for the sliding guide sleeve seat (35) to be slidably mounted therein, wherein the sliding base (36) is provided with adjustment units (34) at the upper and lower positions of the outer edge of the vertical guide hole, which are in contact with the sliding guide sleeve seat (35).

Images