A paper roll weight detection device

Abstract

The present invention belongs to the technical field of paper product production, processing and detection equipment, and provides a paper roll weight detection device, which includes a weighing scale and a pre-loading support seat. A rotating device is arranged on the weighing scale, a first roller conveyor is arranged in the middle of the rotating device, a second roller conveyor connected to it is arranged on the feeding side of the first roller conveyor, a non-powered feeding trough is arranged on the feeding side of the second roller conveyor, the non-powered feeding trough is provided with a plurality of inclined planes and a blanking opening, a blanking device is arranged on both sides of the non-powered feeding trough, the blanking device includes a first blanking mechanism and a second blanking mechanism distributed on both sides of the blanking opening, the first blanking mechanism includes a feeding support bar and a first hydraulic cylinder, and the second blanking mechanism includes a blanking support bar and a second hydraulic cylinder. The present invention has reasonable design, is beneficial to shortening the roll change interval, reducing the defective rate, reducing the operation intensity of forklifts and workers, and improving the automation operation efficiency of the workshop, and is suitable for large-scale popularization.

Description

Technical Field

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

[0002] A paper roll is a product formed by winding paper into a cylindrical shape. It is usually cut and wound by a rewinder from the paper made by a paper machine. According to different uses and requirements, paper rolls of various widths and diameters can be made. According to the use, it can be divided into household paper rolls, such as toilet paper, facial tissue rolls, etc.; packaging paper rolls, which are used to package items to protect and buffer products; printing paper rolls, such as newsprint, coated paper rolls, etc., for rotary printing; industrial paper rolls, which are used in various industrial production processes, such as filter paper rolls, insulating paper rolls, etc. In a paper product production workshop, before the paper roll is wound up and the roll is changed, it is necessary to consider the actual weight of the paper roll to judge the timing of changing the roll. Otherwise, the machine will run idle due to the delay in changing the roll, increasing the number of defective products after being taken off the production line.

[0003] Generally, when weighing a paper roll, it is necessary to use a forklift to transport it to a weighing scale and then transport it to the position where the equipment unwinds the roll by the forklift. In this way, a large number of workers participating in the workshop work are required, especially when the number of workshop production lines is more than 4; moreover, the total walking mileage required for the forklift from the weighing scale to the roll loading position of the equipment is relatively long, increasing the workload and having a low work efficiency, which is not conducive to improving the automation operation efficiency of the workshop. Summary of the Invention

[0004] In view of the above technical problems existing in the paper product production and processing workshop, the present invention provides a paper roll weight detection device with reasonable design, which is beneficial to reducing the operation intensity of forklifts and workers and improving the automation operation efficiency of the workshop.

[0005] To achieve the above object, the technical solution adopted by the present invention is that a paper roll weight detection device provided by the present invention includes a plurality of platform scales arranged in a straight line. The platform scales are embedded in the workshop floor. A rotating device is provided on the top of the platform scales. A first roller conveyor for radially conveying paper rolls on the top of the rotating device is arranged in the middle of the rotating device. A pre-loading 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 loading chute perpendicular to the conveying direction is arranged on the feeding side of the second roller conveyor. A plurality of sloping surfaces are spaced apart on the top of the non-powered loading chute. A support shaft for rolling and supporting the paper roll is arranged on the top of the sloping surface. A blanking port corresponding to the second roller conveyor is arranged between adjacent sloping surfaces. A blanking device is arranged on both sides of the non-powered loading chute. The blanking device includes a first blanking mechanism and a second blanking mechanism distributed on both sides of the blanking port. The first blanking mechanism includes a feeding support bar hinged to the non-powered loading chute. One end of the feeding support bar extends to the middle position of the blanking port. A first hydraulic cylinder hinged to the feeding support bar is arranged at the bottom of the feeding support bar. The other end of the first hydraulic cylinder is hinged to the non-powered loading chute. The second blanking mechanism includes a blanking support bar hinged to the non-powered loading chute. One end of the blanking support bar extends in a reverse and staggered manner with respect to the feeding support bar. A second hydraulic cylinder hinged to the blanking support bar is arranged at the bottom of the blanking support bar. The other end of the second hydraulic cylinder is hinged to the non-powered loading chute.

[0006] Preferably, a bent bar is arranged at one end of the feeding support bar away from the blanking support bar, and the bend of the bent bar faces upward. The top surface of the feeding support bar is flush with the sloping surface in the initial position.

[0007] Preferably, the blanking support bar includes a main bar. An anti-falling groove is arranged at one end of the main bar facing the feeding support bar. The anti-falling groove is in a C-shaped structure. A folding bar hinged to the main bar is arranged on the side surface of the main bar, and the hinge center of the two is located in the anti-falling groove. The folding bar can be turned around its hinge center with the main bar in the feeding direction of the paper roll on the non-powered loading chute. The top surface of the folding bar and the top surface of the main bar are flush in the initial position and not higher than the inner wall of the blanking port.

[0008] Preferably, a support port for cooperating with the feeding support bar is arranged on one side of the folding bar facing the feeding support bar.

[0009] Preferably, a tail bar is arranged at one end of the main bar facing away from the folding bar. The tail bar is slidably matched with the bottom of the bent bar of the feeding support bar of the next blanking device.

[0010] Preferably, fixed grooves are provided on both inner side walls of the unpowered loading chute. A plurality of fixed pulleys are arranged in the fixed grooves and distributed along the length direction thereof. The pulley surfaces of the fixed pulleys are in rolling contact with the end faces of the paper roll.

[0011] Preferably, an inner notch is provided at the top of the side wall of the unpowered loading chute, and wear-resistant support bars are arranged in the inner notch.

[0012] Preferably, the pre-loading support base 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.

[0013] Preferably, a display is provided on the side of the pre-loading support base and is communicatively connected to the weighbridge.

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

[0015] A paper roll weight detection device provided by the present invention can convey the paper roll towards each blanking port position through the unpowered loading chute. The first blanking mechanism and the second blanking mechanism cooperate to complete the buffering of the paper roll, and the paper roll is successively dropped into different blanking ports. The second roller conveyor conveys the paper roll towards the direction where the weighbridge is located. The paper roll can maintain a balanced state on the rotating device, and the weighbridge completes the weighing operation of the paper roll. Each weighbridge corresponds to the loading station of each line in the workshop. Therefore, the continuity of weighing, loading, and roll changing can be improved, the roll changing time can be saved, the roll changing gap can be shortened, and the defective rate can be reduced. The device is reasonably designed, is beneficial to reducing the operation intensity of forklifts and workers, and is beneficial to improving the automation operation efficiency of the workshop, and is suitable for large-scale popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 An isometric view of a paper roll weight detection device provided for the embodiment;

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

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

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

[0021] Figure 5 Partial top view of a paper roll weight detection device provided for the embodiment;

[0022] Figure 6 Axonometric view of the paper roll passing through the blanking port and under the main lever and folding lever;

[0023] Figure 7 Front view of the paper roll passing through the blanking port;

[0024] Figure 8 Folding schematic diagram of the main lever and folding lever provided for the embodiment;

[0025] In each of the above figures, 1, ground; 2, weighing scale; 3, rotating device; 4, first roller conveyor; 5, second roller conveyor; 6, unpowered feeding trough; 61, inclined plane; 62, blanking port; 63, fixed groove; 64, fixed pulley; 65, inner groove opening; 66, wear-resistant support bar; 7, blanking device; 71, first blanking mechanism; 711, feeding support lever; 712, first hydraulic cylinder; 713, bent rod; 72, second blanking mechanism; 721, blanking support lever; 7211, main lever; 7212, anti-falling groove; 7213, folding lever; 722, second hydraulic cylinder; 723, support opening; 724, tail lever; 8, pre-loading support seat; 9, paper roll. Detailed implementation manners

[0026] In order to be able to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. For the convenience of narration, the words "upper", "lower", "left", and "right" as used below only represent the same directions as the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure.

[0027] Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0028] Embodiment, as Figures 1-8As shown in the figure, a paper roll weight detection device provided by the present invention includes a plurality of platform scales 2 arranged in a straight line. The platform scales 2 are embedded in the workshop floor 1. A rotating device 3 is provided on the top of the platform scales 2. A first roller conveyor 4 for radially conveying the paper roll 9 on the top of the rotating device 3 is arranged in the middle of the rotating device 3. A pre-loading support base 8 connected to it is arranged on the discharging side of the first roller conveyor 4. A second roller conveyor 5 connected to it is arranged on the feeding side of the first roller conveyor 4. A non-powered loading chute 6 perpendicular to its conveying direction is arranged on the loading side of the second roller conveyor 5. A plurality of sloping surfaces 61 are spaced apart on the top of the non-powered loading chute 6. The angle of the sloping surface 61 is less than 8 degrees. The top of the sloping surface 61 is used to roll and support the support shaft of the paper roll 9. A blanking port 62 corresponding to the second roller conveyor 5 is arranged between adjacent sloping surfaces 61. A blanking device 7 is arranged on both sides of the non-powered loading chute 6. The blanking device 7 includes a first blanking mechanism 71 and a second blanking mechanism 72 distributed on both sides of the blanking port 62. The first blanking mechanism 71 includes a feeding support bar 711 hinged to the non-powered loading chute 6. One end of the feeding support bar 711 extends to the middle position of the blanking port 62. A first hydraulic cylinder 712 hinged to it is arranged at the bottom of the feeding support bar 711. The other end of the first hydraulic cylinder 712 is hinged to the non-powered loading chute 6. The second blanking mechanism 72 includes a blanking support bar 721 hinged to the non-powered loading chute 6. One end of the blanking support bar 721 extends in a reverse and staggered manner with respect to the feeding support bar 711. A second hydraulic cylinder 722 hinged to it is arranged at the bottom of the blanking support bar 721. The other end of the second hydraulic cylinder 722 is hinged to the non-powered loading chute 6.

[0029] Specifically, the non-powered loading chute 6 can be connected to a paper roll storage or a vehicle for unloading paper rolls. The forklift places the paper roll 9 in the non-powered loading chute 6 at the far end of the production line. Under the action of gravity, the paper roll 9 slowly moves along the sloping surface 61 of the non-powered loading chute 6 towards the blanking port 62. The first blanking mechanism 71 and the second blanking mechanism 72 cooperate to complete the buffering of the paper roll 9, and the paper roll 9 is made to fall into different blanking ports 62 one by one. The second roller conveyor 5 conveys the paper roll 9 towards the direction of the platform scale 2. The paper roll 9 can maintain a balanced state on the rotating device 3. The platform scale 2 completes the weighing operation on the paper roll 9. Each platform scale 2 corresponds to the loading station of each line in the workshop. Thus, the continuity of weighing, loading, and roll changing can be improved. The weighing result can be directly fed back to the control center of the workshop and the control equipment of this processing line by wired or wireless means, which is convenient for reasonably controlling the processing cycle of a single roll, saving the time for roll changing, shortening the roll changing gap, and reducing 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 of 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 of 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 port 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 ports 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 unpowered feeding chute 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 entering the horizontal conveying direction from the blanking port 62, 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. The main bar 7211 is provided with an anti-falling groove 7212 at one end facing the feeding support bar 711. The anti-falling groove 7212 has a C-shaped structure. A folding bar 7213 is hinged to the side of the main bar 7211, and the hinge center of the two is located in the anti-falling groove 7212. The folding bar 7213 can rotate around its hinge center with the main bar 7211 in the feeding direction of the paper roll 9 in the unpowered feeding chute 6. The top surface of the folding bar 7213 and the top surface of the main bar 7211 are flush at the initial position and not higher than the inner wall of the blanking port 62. The anti-falling groove 7212 is used to limit the relative folding direction between 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 with the main bar 7211 and form a reasonable supporting 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 cooperation 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 generates a V-shaped fold under the reverse pressure until the combined state of the folding bar 7213 and the main bar 7211 completely leaves the facing 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 support stability of the feeding support bar 711 and the blanking support bar 721 for the paper roll 9, the folding bar 7213 provided by the present invention is provided with a support opening 723 that cooperates with the feeding support bar 711 on the side facing the feeding support bar 711. The support opening 723 is in a scissor combination state with the front section of the feeding support bar 711 at the initial position. While the V-shaped surface formed by the feeding support bar 711 and the blanking support bar 721 for the paper roll 9 descends as the first hydraulic cylinder 712 and the second hydraulic cylinder 722 contract, the front end of the feeding support bar 711 can slide along the opening surface of the support opening 723, thereby establishing a cooperative relationship between the first blanking mechanism 71 and the second blanking mechanism 72. Coupled with the pressure action of the first hydraulic cylinder 712 and the second hydraulic cylinder 722, the stability of the paper roll 9 descending from the blanking port 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 are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall 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 hinged to the bottom of the material dropping support rod is provided, 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.

Images