Paper roll weight detection device

Abstract

The invention belongs to the technical field of paper product production processing and detection equipment, and provides a paper roll weight detection device which comprises a wagon balance and a pre-roll-up supporting seat, a rotating device is arranged on the wagon balance, a first roller type conveyor is arranged in the middle of the rotating device, and a second roller type conveyor connected with the first roller type conveyor is arranged on the feeding side of the first roller type conveyor. An unpowered feeding groove is formed in the feeding side of the second roller type conveyor and provided with a plurality of slope faces and a discharging port, the two sides of the unpowered feeding groove are each provided with a discharging device, and each discharging device comprises a first discharging mechanism and a second discharging mechanism which are distributed on the two sides of the discharging port. The first blanking mechanism comprises a feeding support bar and a first hydraulic cylinder, and the second blanking mechanism comprises a blanking support bar and a second hydraulic cylinder. The automatic roll changing device is reasonable in design, beneficial for shortening roll changing gaps, reducing the defective rate, reducing the work intensity of forklifts and workers and improving the automatic work efficiency of workshops, and suitable for large-scale popularization.

Description

Technical Field

[0001] The invention belongs to the technical field of paper product production, processing and detection equipment, and in particular relates to a paper roll weight detection device. Background Art

[0002] Paper rolls are products made by rolling paper into a tube. They are usually made by cutting paper made by a paper machine and then rolling it by a rewinder. They can be made into paper rolls of various widths and diameters according to different uses and requirements. According to the use, they can be divided into household paper rolls, such as toilet paper and facial tissue rolls; packaging paper rolls, which are used to package items, protect and cushion products; printing paper rolls, such as newsprint and coated paper rolls, which are used for rotary printing; industrial paper rolls, which are used in various industrial production processes, such as filter paper rolls and insulation paper rolls. In the paper product production workshop, before rolling up and changing the paper rolls, the actual weight of the paper rolls needs to be considered to determine the timing of changing the rolls. Otherwise, the machine will run idle due to the delay in changing the rolls, which will increase the number of defective products after the rolls are off the line.

[0003] Generally, if a paper roll is to be weighed, it needs to be weighed on a scale transported by a forklift, and then transported to the unwinding position of the equipment by a forklift. In this case, a large number of workers are required to participate in the work in the workshop, especially when there are more than 4 production lines in the workshop; in addition, the total mileage required for the forklift to travel from the weighing to the unwinding position of the equipment is long, which increases the workload and has low work efficiency, which is not conducive to improving the automation efficiency of the workshop. Summary of the invention

[0004] In view of the technical problems existing in the above-mentioned paper product production and processing workshop, the present invention proposes a paper roll weight detection device which has a reasonable design, is conducive to reducing the working intensity of forklifts and workers, and is conducive to improving the automation efficiency of the workshop.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is that a paper roll weight detection device provided by the present invention comprises a plurality of floor scales arranged in a straight line, the floor scales are embedded in the workshop floor, a rotating device is arranged on the top of the floor scale, a first roller conveyor for radially conveying the paper roll on the top of the rotating device is arranged in the middle of the rotating device, a pre-rolling support seat connected to the first roller conveyor is arranged on the discharge side of the first roller conveyor, a second roller conveyor connected to the first roller conveyor is arranged on the feeding side of the first roller conveyor, a non-powered feeding trough perpendicular to the conveying direction is arranged on the feeding side of the second roller conveyor, a plurality of spaced-apart inclined surfaces are arranged on the top of the non-powered feeding trough, the top of the inclined surface is used to roll the support shaft for supporting the paper roll, and adjacent inclined surfaces A drop port corresponding to the second roller conveyor is arranged in between, and a drop device is arranged on both sides of the unpowered feeding trough, and the drop device includes a first drop mechanism and a second drop mechanism distributed on both sides of the drop port, and the first drop mechanism includes a feed support bar hinged to the unpowered feeding trough, and one end of the feed support bar extends to the middle position of the drop port, and a first hydraulic cylinder hinged to the bottom of the feed support bar is arranged, and the other end of the first hydraulic cylinder is hinged to the unpowered feeding trough, and the second drop mechanism includes a drop support bar hinged to the unpowered feeding trough, and one end of the drop support bar extends in the opposite direction to the feed support bar, and a second hydraulic cylinder intersecting with the drop support bar is arranged at the bottom of the drop support bar, and the other end of the second hydraulic cylinder is hinged to the unpowered feeding trough.

[0006] Preferably, the feed support bar is provided with a bent rod at one end away from the blanking support bar, and the bent end of the bent rod faces upward, and the top surface of the feed support bar is flush with the slope surface in an initial position.

[0007] Preferably, the blanking support rod comprises a main rod, and the main rod is provided with an anti-fall groove at one end thereof facing the feed support rod, and the anti-fall groove is a C-shaped structure. A folding rod hinged to the side of the main rod is provided, and the hinge center of the two is located in the anti-fall groove. The folding rod can be flipped around the hinge center with the main rod toward the feeding direction of the paper roll in the unpowered feeding trough, and the top surface of the folding rod is flush with the top surface of the main rod in the initial position and is not higher than the inner wall of the blanking port.

[0008] Preferably, the folding bar is provided with a supporting opening cooperating with the feed supporting bar on the side thereof facing the feed supporting bar.

[0009] Preferably, the main bar is provided with a tail bar at one end thereof facing away from the folding bar, and the tail bar is slidably matched with the bottom of the bent rod of the feed support bar of the next blanking device.

[0010] Preferably, fixed grooves are provided on both side walls of the unpowered feeding trough, and a plurality of fixed pulleys distributed along the length direction of the fixed groove are provided in the fixed groove, and the wheel surfaces of the fixed pulleys are in rolling contact with the two end surfaces of the paper roll.

[0011] Preferably, an inner notch is provided at the top of the side wall of the unpowered feeding chute, and a wear-resistant support strip is provided in the inner notch.

[0012] Preferably, the pre-rolling support seat comprises an arc-shaped support surface, and the length direction of the support surface is perpendicular to the conveying direction of the second roller conveyor.

[0013] Preferably, a display connected to the floor scale for communication is provided on the side of the pre-rolling support seat.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] The present invention provides a paper roll weight detection device, which can convey the paper roll to each drop opening position through a non-powered feeding trough, and the first drop mechanism and the second drop mechanism cooperate to complete the buffering of the paper roll, and make the paper rolls fall into different drop openings one by one, and the second roller conveyor conveys the paper roll to the direction of the scale, and the paper roll can maintain a balanced state on the rotating device, and the scale completes the weighing operation of the paper roll, and each scale corresponds to the roll-up station of each line in the workshop, thereby improving the continuity of weighing and rolling and changing rolls, saving the time of changing rolls, and being conducive to shortening the roll-changing interval and reducing the defective rate. The device is reasonably designed, is conducive to reducing the working intensity of forklifts and workers, and is conducive to improving the efficiency of workshop automation operations, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 An axonometric diagram of a paper roll weight detection device provided in an embodiment;

[0018] Figure 2 A top view of a paper roll weight detection device provided in an embodiment;

[0019] Figure 3 A side view of a paper roll weight detection device provided in an embodiment;

[0020] Figure 4 A partial isometric view of a paper roll weight detection device provided in an embodiment;

[0021] Figure 5 A partial top view of a paper roll weight detection device provided in an embodiment;

[0022] Figure 6 An axonometric view of the paper roll passing through the blanking port and under the main bar and folding bar;

[0023] Figure 7 This is the front view of the paper roll passing through the blanking port;

[0024] Figure 8 A schematic diagram of folding the main bar and the folding bar provided in the embodiment;

[0025] In the above figures, 1, ground; 2, floor scale; 3, rotating device; 4, first roller conveyor; 5, second roller conveyor; 6, unpowered feeding chute; 61, slope surface; 62, feeding port; 63, fixed trough; 64, fixed pulley; 65, inner notch; 66, wear-resistant support strip; 7, feeding device; 71, first feeding mechanism; 711, feeding support bar; 712, first hydraulic cylinder; 713, bending rod; 72, second feeding mechanism; 721, feeding support bar; 7211, main bar; 7212, anti-falling trough; 7213, folding bar; 722, second hydraulic cylinder; 723, support port; 724, tail bar; 8, pre-rolling support seat; 9, paper roll. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the accompanying drawings themselves, and do not limit the structure.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0028] Examples, such as Figure 1-Figure 8As shown, a paper roll weight detection device provided by the present invention comprises a plurality of floor scales 2 arranged in a straight line, the floor scales 2 are embedded in a workshop floor 1, a rotating device 3 is arranged on the top of the floor scale 2, a first roller conveyor 4 for radially conveying a paper roll 9 on the top of the rotating device 3 is arranged in the middle of the rotating device 3, a pre-rolling support seat 8 connected to the first roller conveyor 4 is arranged on the discharge side, a second roller conveyor 5 connected to the first roller conveyor 4 is arranged on the feed side, a non-powered feeding trough 6 perpendicular to the conveying direction is arranged on the feeding side of the second roller conveyor 5, a plurality of spaced-apart slope surfaces 61 are arranged on the top of the non-powered feeding trough 6, the angle of the slope surface 61 is less than 8 degrees, the top of the slope surface 61 is used to roll a support shaft for supporting the paper roll 9, and a pre-rolling support seat 8 connected to the second roller conveyor 5 is arranged between adjacent slope surfaces 61. Corresponding to the drop port 62, a drop device 7 is provided on both sides of the unpowered feeding chute 6. The drop device 7 includes a first drop mechanism 71 and a second drop mechanism 72 distributed on both sides of the drop port 62. The first drop mechanism 71 includes a feed support rod 711 hinged to the unpowered feeding chute 6, one end of the feed support rod 711 extends to the middle position of the drop port 62, and a first hydraulic cylinder 712 hinged to the bottom of the feed support rod 711 is provided, and the other end of the first hydraulic cylinder 712 is hinged to the unpowered feeding chute 6. The second drop mechanism 72 includes a drop support rod 721 hinged to the unpowered feeding chute 6, one end of the drop support rod 721 extends in the opposite direction to the feed support rod 711, and a second hydraulic cylinder 722 intersecting with the drop support rod 721 is provided at the bottom of the drop support rod 721, and the other end of the second hydraulic cylinder 722 is hinged to the unpowered feeding chute 6.

[0029] Specifically, the unpowered loading chute 6 can be connected with the paper roll warehouse or the vehicle for unloading paper rolls, and the forklift puts the paper roll 9 in the unpowered loading chute 6 at the far end of the production line. Under the action of gravity, the paper roll 9 slowly moves along the slope surface 61 of the unpowered loading chute 6 toward the drop port 62, and the first drop mechanism 71 and the second drop mechanism 72 cooperate to complete the buffering of the paper roll 9, and make the paper rolls 9 fall one by one into different drop ports 62, and the second roller conveyor 5 conveys the paper roll 9 in the direction of the scale 2. The paper roll 9 can maintain a balanced state on the rotating device 3, and the scale 2 weighs the paper roll 9, and each scale 2 corresponds to the rolling station of each line in the workshop, thereby improving the continuity of weighing, rolling and changing rolls, and the weighing result can be directly fed back to the control center of the workshop and the control equipment of the processing line through wired or wireless means, so as to reasonably control the processing cycle of a single roll, save the time of changing rolls, and help shorten the roll changing interval and reduce the defective rate.

[0030] Furthermore, the first hydraulic cylinder 712 can support the feed support bar 711 at the initial position, and the paper roll 9 can move along the slope surface 61 and the top surface of the feed support bar 711 until the paper roll 9 enters the coordinated support range of the feed support bar 711 and the blanking support bar 721, that is, above the blanking port 62, and the support force of the blanking support bar 721 is provided by the second hydraulic cylinder 722. The first hydraulic cylinder 712 and the second hydraulic cylinder 722 shrink at the same time, and the top surfaces of the feed support bar 711 and the blanking support bar 721 form a V-shaped opening, and the height of the V-shaped opening decreases with the shrinkage of the first hydraulic cylinder 712 and the second hydraulic cylinder 722 until the paper roll 9 falls on the rolling support surface of the second roller conveyor 5. When the paper roll 9 falls on the rolling support surface of the second roller conveyor 5, the front end surface of the feed support bar 711 leaves the support for the support shaft and abuts against the side surface of the support shaft, while the drop support bar 721 is still supporting the support shaft and continues to contract the piston rod of the second hydraulic cylinder 722, so that the drop support bar 721 leaves the support for the paper roll 9, thereby allowing the paper roll 9 to enter a ready state for horizontal transportation. For other paper rolls 9 on the unpowered loading chute 6, after they enter the support slope of the feed support bar 711 and the drop support bar 721, the front wall of the drop opening 62 limits the paper roll 9; the second hydraulic cylinder 722 is extended to send the paper roll 9 to the next slope surface 61 through the hydraulic support force, thereby starting the transmission of paper rolls 9 one by one until all drop openings 62 have paper rolls 9. In this way, the device completes the reasonable layout of the paper roll 9 conveying path in the workshop through the unpowered feeding chute 6, the second roller conveyor 5, and the first roller conveyor 4, reduces the mileage of the forklift in the workshop, reduces the work intensity of the workers, and is conducive to improving the efficiency of the workshop automation operation.

[0031] In order to prevent the paper roll 9 from continuously squeezing into the same blanking port 62, the feed support bar 711 provided by the present invention is provided with a bent rod 713 at one end away from the blanking support bar 721, and the bent end of the bent rod 713 faces upward, and the top surface of the feed support bar 711 is flush with the slope surface 61 at the initial position. The feed support bar 711 and the bent rod 713 are integrally formed, and the bent rod 713 does not affect the slow movement of the paper roll 9 along the slope surface 61 when it is initially externally arranged, and the tail of the bent rod 713 is tilted when the first hydraulic cylinder 712 retracts the feed support bar 711, and the tilted bent rod 713 can prevent the following paper roll 9 from following the previous paper roll 9 into the blanking path, thereby improving the rationality of the overall arrangement of the paper roll 9 to different blanking ports 62.

[0032] Considering that the height of the non-powered feeding trough 6 is limited, and the downward turning diameter of the blanking support bar 721 is greater than its installation height, in order to ensure that the blanking device 7 does not affect the paper roll 9 from the blanking port 62 to the horizontal conveying direction, the blanking support bar 721 provided by the present invention adopts a foldable design. Among them, the blanking support bar 721 includes a main bar 7211, and the main bar 7211 is provided with an anti-falling groove 7212 at one end thereof facing the feeding support bar 711, and the anti-falling groove 7212 is a C-shaped structure. The side of the main bar 7211 is provided with a folding bar 7213 hinged thereto, and the hinge center of the two is located in the anti-falling groove 7212. The folding bar 7213 can be turned around the hinge center with the main bar 7211 toward the feeding direction of the paper roll 9 in the non-powered feeding trough 6, and the top surface of the folding bar 7213 and the top surface of the main bar 7211 are flush with each other in the initial position and are not higher than the inner wall of the blanking port 62. The anti-falling groove 7212 is used to limit the relative folding direction of the folding bar 7213 and the main bar 7211, specifically to prevent the folding bar 7213 and the main bar 7211 from folding in an inverted V shape, especially under the heavy pressure of the paper roll 9, the folding bar 7213 can always maintain the hinge connection with the main bar 7211, and establish a reasonable support surface, so as to ensure that the paper roll 9 can stably fall on the rolling support surface of the second roller conveyor 5 under the coordinated action of the feeding support bar 711 and the blanking support bar 721. For the horizontal conveying requirement of the paper roll 9, the piston rod of the second hydraulic cylinder 722 continues to contract, and the folding bar 7213 produces a V-shaped fold under the action of the reverse pressure until the combined state of the folding bar 7213 and the main bar 7211 completely leaves the opposite direction of the blanking port 62, thereby providing a completely open horizontal conveying path for the paper roll 9.

[0033] In order to improve the supporting stability of the feed support bar 711 and the blanking support bar 721 on the paper roll 9, the folding bar 7213 provided by the present invention is provided with a supporting opening 723 cooperating with the feed support bar 711 on the side thereof facing the feed support bar 711. The supporting opening 723 is in a scissor-type combination state with the front section of the feed support bar 711 in the initial position. The V-shaped surface of the paper roll 9 formed by the feed support bar 711 and the blanking support bar 721 descends as the first hydraulic cylinder 712 and the second hydraulic cylinder 722 contract. At the same time, the front end of the feed support bar 711 can slide along the opening surface of the supporting opening 723, thereby establishing a coordinated relationship between the first blanking mechanism 71 and the second blanking mechanism 72. Coupled with the pressure of the first hydraulic cylinder 712 and the second hydraulic cylinder 722, the stability of the paper roll 9 descending from the blanking opening 62 can be effectively guaranteed.

[0034] Furthermore, the present invention provides a tail bar 724 at one end of the main bar 7211 facing away from the folding bar 7213, and the tail bar 724 is slidably matched with the bottom of the curved rod 713 of the feeding support bar 711 of the next blanking device 7. In this way, when the second hydraulic cylinder 722 contracts the blanking support bar 721, the tail bar 724 can lift the curved rod 713 in a lifting manner, and combined with the pressure of the first hydraulic cylinder 712, a second protection mechanism can be provided for the arrangement of the paper roll 9, thereby improving the orderliness and coordination of the paper roll 9 being transferred to the direction of the unpowered loading chute 6.

[0035] like Figure 4 As shown, in order to improve the balance of the paper roll 9 moving along the non-powered feeding trough 6, the non-powered feeding trough 6 provided by the present invention is provided with fixed grooves 63 on both side walls of the trough, and a plurality of fixed pulleys 64 distributed along the length direction thereof are provided in the fixed grooves 63, and the wheel surfaces of the fixed pulleys 64 are in rolling contact with the two end surfaces of the paper roll 9. The fixed pulleys 64 can provide axial protection for the moving paper roll 9, reduce the probability of axial movement of the paper roll 9, and thereby improve the stability and safety of the automatic transmission of the paper roll 9 by the device.

[0036] In order to improve the wear resistance of the unpowered feeding chute 6, the present invention provides an inner notch 65 at the top of the side wall of the unpowered feeding chute 6, and a wear-resistant support strip 66 is provided in the inner notch 65. It is best to use welding to complete the engagement of the wear-resistant support strip 66 and the inner notch 65. The wear-resistant support strip 66 can improve the structural strength and wear resistance of the supporting surface of the unpowered feeding chute 6, which is beneficial to improving the actual service life of the equipment.

[0037] like Figure 1 and Figure 2 As shown, the pre-roll support seat 8 includes an arc-shaped support surface, and the length direction of the support surface is perpendicular to the conveying direction of the second roller conveyor 5. For the paper roll 9 conveyed from the second roller conveyor 5 to the first roller conveyor 4, the rotating device 3 drives the first roller conveyor 4 to rotate, thereby driving the paper roll 9 to also rotate 90 degrees, and the first roller conveyor 4 conveys the paper roll 9, thereby causing the paper roll 9 to enter the pre-roll support seat 8, and provide a prepared paper roll that has been automatically weighed for the roll changing operation.

[0038] Furthermore, a display connected to the floor scale 2 is provided on the side of the pre-roll support seat 8 provided by the present invention. A wireless communication module can be built in the display, and the weight of the prepared paper roll can be directly displayed through the display. The weighing result of the floor scale 2 can be fed back to the control system of the production line, and the control system completes the production cycle of the paper roll 9 on the line and predicts the reasonable time to change the roll.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A paper roll weight detection device, comprising a plurality of floor scales arranged in a straight line, the floor scales being embedded in the workshop floor, characterized in that: A rotating device is provided on the top of the floor scale, a first roller conveyor for radially conveying paper rolls on the top of the rotating device is provided in the middle of the rotating device, a pre-rolling support seat connected with the first roller conveyor is provided on the discharge side of the first roller conveyor, a second roller conveyor connected with the first roller conveyor is provided on the feeding side of the first roller conveyor, a non-powered feeding trough perpendicular to the conveying direction is provided on the feeding side of the second roller conveyor, a plurality of slope surfaces distributed at intervals on the top of the non-powered feeding trough are provided, the top of the slope surface is used for rolling a support shaft for supporting the paper roll, a drop port corresponding to the second roller conveyor is provided between adjacent slope surfaces, and both sides of the non-powered feeding trough are A material dropping device is provided, which includes a first material dropping mechanism and a second material dropping mechanism distributed on both sides of the material dropping port, the first material dropping mechanism includes a feed support rod hinged to the unpowered feeding chute, one end of the feed support rod extends to the middle position of the material dropping port, a first hydraulic cylinder hinged to the bottom of the feed support rod is provided, the other end of the first hydraulic cylinder is hinged to the unpowered feeding chute, the second material dropping mechanism includes a material dropping support rod hinged to the unpowered feeding chute, one end of the material dropping support rod extends in the opposite direction to the feed support rod, a second hydraulic cylinder intersecting with the material dropping support rod is provided at the bottom of the material dropping support rod, and the other end of the second hydraulic cylinder is hinged to the unpowered feeding chute.

2. A paper roll weight detection device according to claim 1, characterized in that: The feeding support bar is provided with a bent rod at one end thereof away from the blanking support bar, and the bent opening of the bent rod faces upwards, and the top surface of the feeding support bar is flush with the slope surface in an initial position.

3. A paper roll weight detection device according to claim 2, characterized in that: The blanking support rod includes a main rod, and the main rod is provided with an anti-falling groove at one end thereof facing the feeding support rod, and the anti-falling groove is a C-shaped structure. A folding rod hinged to the main rod is provided on the side thereof, and the hinge center of the two is located in the anti-falling groove. The folding rod can be flipped around the hinge center with the main rod toward the feeding direction of the paper roll in the unpowered feeding trough, and the top surface of the folding rod is flush with the top surface of the main rod in the initial position and is not higher than the inner wall of the blanking port.

4. A paper roll weight detection device according to claim 3, characterized in that: The folding bar is provided with a supporting opening matched with the feeding supporting bar on the side thereof facing the feeding supporting bar.

5. A paper roll weight detection device according to claim 4, characterized in that: The main bar is provided with a tail bar at one end thereof facing away from the folding bar, and the tail bar is slidably matched with the bottom of the bent rod of the feeding support bar of the next blanking device.

6. A paper roll weight detection device according to claim 1, characterized in that: The two side walls of the unpowered feeding trough are both provided with fixed troughs, and the fixed troughs are provided with a plurality of fixed pulleys distributed along the length direction thereof, and the wheel surfaces of the fixed pulleys are in rolling contact with the two end surfaces of the paper roll.

7. A paper roll weight detection device according to claim 1, characterized in that: The top of the side wall of the unpowered feeding trough is provided with an inner notch, and a wear-resistant support strip is provided in the inner notch.

8. A paper roll weight detection device according to claim 1, characterized in that: The pre-rolling support seat comprises an arc-shaped support surface, and the length direction of the support surface is perpendicular to the conveying direction of the second roller conveyor.

9. A paper roll weight detection device according to claim 1, characterized in that: A display connected to the floor scale for communication is arranged on the side of the pre-rolling support seat.

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