Paper core strength detection device for winding roll-shaped coated abrasive tool

By designing a combination of a lever-type pressing component and a dial indicator measuring component, the problem of paper core strength testing is solved, and a fast and economical test of paper core strength is achieved, ensuring the product quality of coated abrasive rolls during transportation.

CN223377092UActive Publication Date: 2025-09-23JIANGSU SANLING ABRASIVES CO LTD
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Patent Information

Application Number
CN202422333148.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-09-23
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

The quality of paper cores in the prior art varies, which causes the coated abrasive rolls to be easily deformed during transportation, resulting in folding and edge damage, affecting product quality.

Method used

A strength testing device for paper cores used in the winding of rolled coated abrasives was designed. The device used a lever-type pressing component and a dial indicator measuring component to determine the strength of the paper core by measuring the deformation of the paper core. The device involved the coordinated use of the lever-type pressing component, the weighting component, and the dial indicator measuring component.

Benefits of technology

It realizes a simple, economical and practical paper core strength test, which can quickly determine whether the paper core meets the strength requirements, avoid deformation problems during transportation, and ensure product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of coated abrasive tool product manufacturing, and discloses a paper core strength detection device for winding a roll-shaped coated abrasive tool, which comprises a workbench, a paper core strength detection device, a paper core strength detection device and a paper core strength detection device, and is characterized in that the workbench is provided with a fixing position for transversely placing a paper core; the lever type pressing assembly is installed on the workbench, the lever type pressing assembly comprises a movable cross rod, a pressing rod and a weight weighting assembly, the pressing rod and the weight weighting assembly are installed on the movable cross rod, a dial indicator measuring assembly used for measuring the downward movement amount of the pressing rod is installed on the pressing rod, and the end, away from the movable cross rod, of the pressing rod abuts against the surface of the paper element. The paper core strength detection device for winding the roll-shaped coated abrasive tool is simple in structure, convenient to operate, economical and practical, and the strength of the paper core can be judged through the deformation quantity of the paper core.
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Description

Technical Field

[0001] The utility model relates to the technical field of coated abrasive product manufacturing, in particular to a paper core strength detection device for winding a rolled coated abrasive. Background Art

[0002] Coated abrasives are typically wound onto paper cores to form rolls of a specific length for shipment to customers. However, there's currently no specific method for testing the strength of paper cores. Due to the varying quality of paper cores and the bumpy ride during transportation, customers often experience creases and edge damage due to deformation of the paper cores. This can lead to quality issues, impacting customer use, and causing unnecessary losses. Utility Model Content

[0003] In order to improve the above problems, the utility model discloses a paper core strength detection device for winding a rolled coated abrasive, comprising:

[0004] A workbench with a fixed position for placing the paper core horizontally;

[0005] A lever-type pressing assembly is installed on a workbench. The lever-type pressing assembly includes a movable cross bar and a pressure rod and a weight-adding assembly installed on the movable cross bar. A dial indicator measuring assembly for measuring the downward movement of the pressure rod is installed on the pressure rod. The pressure rod is positioned away from the end of the movable cross bar and is against the surface of the paper core.

[0006] Preferably, the lever-type pressing assembly further comprises:

[0007] Vertical support rod, the vertical support rod is installed on the workbench;

[0008] The hinged rod group is formed by hingedly connecting two supporting rods, and the movable cross bar is installed on the top of the vertical support rod through the hinged rod group away from the end of the weight adding assembly.

[0009] Preferably, a vertical channel is provided through the bottom end of the pressure rod, the top end of the pressure rod is hinged to the movable cross bar, and the vertical channel is fixedly installed at a predetermined position.

[0010] Preferably, the dial indicator measuring assembly includes:

[0011] Dial indicator, the dial indicator is installed in a predetermined position;

[0012] Mounting sleeve 1, which is mounted on the measuring head of the dial indicator. Mounting sleeve 1 is provided with a locking screw for connecting with the measuring head of the dial indicator;

[0013] The second mounting sleeve is sleeved on the pressure rod, and the pressure rod is threadedly connected with an adjusting nut, which is abutted against the top of the second mounting sleeve;

[0014] An intermediate connecting rod is connected between the first mounting sleeve and the second mounting sleeve.

[0015] Preferably, the weight adding assembly comprises:

[0016] Vertical chute, the vertical chute is installed at a predetermined position;

[0017] The installation slider is slidably connected in the vertical slide groove, and the movable cross bar is connected to the installation slider away from the end of the hinged rod group;

[0018] A weight placement plate connected to the mounting slider via a suspension rod;

[0019] Cylinder one and cylinder two, the series-connected cylinder one and cylinder two are located below the weight placement plate, the piston rod of cylinder one is set close to the weight placement plate, the piston rod of cylinder two is set in the opposite direction to the piston rod of cylinder one, and the piston rod of cylinder two is installed in a predetermined position.

[0020] Preferably, a pressing head is installed on the pressing rod near the end of the paper core.

[0021] Preferably, a side mounting panel is installed at the edge of the workbench, and the vertical channel, dial indicator, vertical slide groove and the piston rod of the second cylinder are all installed on the side mounting panel.

[0022] Compared with the prior art, the utility model has the following advantages:

[0023] The utility model provides a paper core strength testing device for winding a rolled coated abrasive, which has a simple structure, is easy to operate, economical and practical, and can determine the strength of the paper core by measuring the deformation of the paper core. The piston rods of the first and second cylinders are extended at the same time, and after the sliding block reaches the upper dead center of the sliding groove, the weight placement plate, the movable cross bar and the pressure rod are lifted up, and the paper core to be tested is fixed on the workbench and located below the pressure rod. The piston rod of the second cylinder is retracted, so that the sliding block is suspended in the sliding groove. At this time, the pressure rod is pressed. The bottom end of the rod rests on the surface of the paper core. The weight does not apply force to the pressure rod. Adjust the adjusting nut until it is just at the top of the second mounting sleeve. Set the dial indicator to zero, then retract the piston rod of cylinder one. After the weight placement plate loses the support of the piston rod of cylinder one, the weight applies force to the pressure rod. The pressure rod drives the second mounting sleeve downward synchronously through the adjusting nut. The second mounting sleeve drives the mounting sleeve downward through the intermediate connecting rod, pulling the probe of the dial indicator. The paper core deforms, and the deformation data is read using the dial indicator to determine whether the strength of the paper core meets the requirements. Then, extend the piston rods of cylinders one and two simultaneously. The sliding block reaches the top dead center of the sliding groove. The weight placement plate, movable crossbar, and pressure rod are lifted up. Remove the paper core and repeat the above steps for repeated testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a front view of the utility model.

[0026] In the figure: 1. Workbench; 2. Paper core; 3. Articulated rod assembly; 4. Movable crossbar; 5. Dial indicator; 6. Mounting sleeve 2; 7. Pressure rod; 8. Vertical slide; 9. Mounting slider; 10. Weight placement plate; 11. Cylinder 1; 12. Cylinder 2; 13. Vertical support rod; 14. Mounting sleeve 1; 15. Vertical channel. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] Example

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] like Figure 1 As shown, this embodiment provides a device for detecting the strength of a paper core for winding a coated abrasive roll, comprising:

[0031] A workbench 1 is provided with a fixing position for placing the paper core 2 horizontally;

[0032] The lever-type pressing assembly is installed on the workbench 1. The lever-type pressing assembly includes a movable cross bar 4 and a pressure rod 7 and a weighting assembly installed on the movable cross bar 4. A dial indicator measuring assembly for measuring the downward movement of the pressure rod 7 is installed on the pressure rod 7. The end of the pressure rod 7 away from the movable cross bar 4 is against the surface of the paper core 2.

[0033] The working principle and beneficial effects of the above technical solution are:

[0034] The utility model discloses a paper core strength testing device for winding a coated abrasive roll. The paper core 2 to be tested is fixed on a workbench 1, and a pressure rod 7 is placed against the surface of the paper core 2. According to the predetermined testing requirements, the weight of the weight-adding assembly is changed, thereby driving the movable crossbar 4 connected to the weight-adding assembly and the pressure rod 7 installed on the movable crossbar 4 to move downward synchronously. The pressure rod 7 presses the paper core 2, and the dial indicator measuring assembly is used to measure the downward movement of the pressure rod 7. The downward movement of the pressure rod 7 is the deformation of the paper core 2, and the deformation of the paper core 2 can be used to determine the strength of the paper core 2. The utility model provides a paper core strength testing device for winding a coated abrasive roll, which has a simple structure, is easy to operate, and is economical and practical. The strength of the paper core 2 can be determined by the deformation of the paper core 2.

[0035] In one embodiment, the lever-type pressing assembly further comprises:

[0036] A vertical support rod 13 is mounted on the workbench 1;

[0037] The hinged rod group 3 is formed by hingedly connecting two supporting rods, and the movable cross bar 4 is installed on the top of the vertical support rod 13 through the hinged rod group 3 away from the end of the weight adding assembly.

[0038] The working principle and beneficial effects of the above technical solution are:

[0039] After the weight-adding assembly is weighted, it drives the movable cross bar 4 connected to the weight-adding assembly to press down, and the movable cross bar 4 makes a downward flipping movement at the top of the vertical support rod 13 through the hinged rod group 3, thereby driving the pressure rod 7 installed on the movable cross bar 4 to move downward synchronously, and the pressure rod 7 completes the pressing of the paper core 2. The setting of the hinged rod group 3 increases the degree of freedom.

[0040] In one embodiment, a vertical channel 15 is provided through the bottom end of the pressure rod 7 , and the top end of the pressure rod 7 is hinged to the movable cross bar 4 , and the vertical channel 15 is fixedly installed at a predetermined position.

[0041] The working principle and beneficial effects of the above technical solution are:

[0042] The provision of the vertical channel 15 limits the pressing rod 7 to only be able to perform vertical lifting movements.

[0043] In one embodiment, the dial indicator measurement assembly includes:

[0044] Dial indicator 5, dial indicator 5 is installed in the predetermined position;

[0045] Mounting sleeve 14, which is mounted on the probe of dial indicator 5. Mounting sleeve 14 is provided with a locking screw for connecting with the probe of dial indicator 5;

[0046] The second mounting sleeve 6 is sleeved on the pressure rod 7. The pressure rod 7 is threadedly connected with an adjusting nut, which is against the top of the second mounting sleeve 6.

[0047] The intermediate connecting rod is connected between the mounting sleeve 1 14 and the mounting sleeve 2 6 .

[0048] The working principle and beneficial effects of the above technical solution are:

[0049] When testing paper cores 2 of different diameters, the position of the adjusting nut is adjusted to change the downward length of the pressure rod 7, thereby ensuring that when the bottom end of the pressure rod 7 is against the surface of the paper core 2, the adjusting nut is just located at the top of the mounting sleeve 2 6, and the value of the dial indicator 5 is recorded as a at this time. According to the established testing requirements, the corresponding first weight testing requirement is added to the weight adding assembly, the movable cross bar 4 presses the pressure rod 7, and the pressure rod 7 drives the mounting sleeve 2 6 to be pressed down synchronously through the adjusting nut, and the mounting sleeve 2 6 drives the mounting sleeve 1 14 through the intermediate connecting rod. Pull down the probe of the dial indicator 5. At this time, the value recorded on the dial indicator 5 is b, the downward movement of the pressure rod 7 is ba, and the deformation of the paper core 2 is also ba. At this time, the deformation of the paper core 2 under the first weight detection requirement is ba. In this way, the strength of the paper core 2 under the first weight detection requirement can be determined. Then, the corresponding second weight detection requirement can be added to the weight adding component. At this time, the value recorded on the dial indicator 5 is c, and the deformation of the paper core 2 under the second weight detection requirement is ca. In this way, the strength of the paper core 2 under the second weight detection requirement can be determined.

[0050] In one embodiment, the weight assembly includes:

[0051] The vertical chute 8 is installed at a predetermined position;

[0052] The installation slider 9 is slidably connected to the vertical slide groove 8, and the movable cross bar 4 is connected to the installation slider 9 at the end away from the hinged rod group 3;

[0053] The weight placement plate 10 is connected to the mounting slider 9 via a suspension rod;

[0054] Cylinder one 11 and cylinder two 12, the cylinder one 11 and cylinder two 12 connected in series are located below the weight placement plate 10, the piston rod of cylinder one 11 is set close to the weight placement plate 10, the piston rod of cylinder two 12 is set in the opposite direction to the piston rod of cylinder one 11, and the piston rod of cylinder two 12 is installed in a predetermined position.

[0055] The working principle and beneficial effects of the above technical solution are:

[0056] The weights are placed on the weight placement tray 10. The corresponding weight of the weight is dragged by the suspension rod to slide the mounting slider 9 in the vertical slide 8, thereby driving the movable crossbar 4 connected to the mounting slider 9 to press the pressure rod 7. The weight detection requirements can be changed by changing the number of weights placed on the weight placement tray 10.

[0057] Specifically, the piston rods of cylinder 11 and cylinder 2 12 are extended at the same time. After the sliding block 9 reaches the top dead center of the sliding groove 8, the weight placement plate 10, the movable cross bar 4 and the pressure rod 7 are lifted up, and the paper core 2 to be tested is fixed on the workbench 1 and located below the pressure rod 7. The piston rod of cylinder 2 12 is retracted so that the sliding block 9 is in a suspended state in the sliding groove 8. At this time, the bottom end of the pressure rod 7 is against the surface of the paper core 2, and the weight does not exert force on the pressure rod 7. The adjusting nut is adjusted to ensure that the paper core 2 is in a stable state. The paper core 2 is deformed by the adjustment nut, and the deformation data is read by the dial indicator 5 to determine whether the strength of the paper core meets the requirements. Then, the piston rods of the cylinder 11 are extended simultaneously, and the sliding block 9 reaches the top dead center of the sliding groove 8. The weight placement plate 10, the movable crossbar 4, and the pressure rod 7 are lifted up. The paper core 2 is removed and the above steps are repeated for repeated testing.

[0058] In one embodiment, a pressing head is installed at the end of the pressing rod 7 close to the paper core 2 .

[0059] The beneficial effects of the above technical solution are:

[0060] The arrangement of the pressing head facilitates the pressing rod 7 to press down the surface of the paper core 2 .

[0061] In one embodiment, a side mounting panel is installed at the edge of the workbench 1, and the vertical channel 15, the dial indicator 5, the vertical slide 8 and the piston rod of the cylinder 2 12 are all installed on the side mounting panel.

[0062] The beneficial effects of the above technical solution are:

[0063] The setting of the side mounting panel facilitates the installation of the vertical channel 15, the dial indicator 5, the vertical slide 8 and the piston rod of the cylinder 2 12 on the side mounting panel.

[0064] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A paper core strength testing device for a rolled coated abrasive, characterized in that: include: A workbench (1), wherein the workbench (1) is provided with a fixing position for placing the paper core (2) horizontally; The lever-type pressing assembly is installed on a workbench (1). The lever-type pressing assembly comprises a movable crossbar (4), a pressing rod (7) installed on the movable crossbar (4), and a weight adding assembly. A dial indicator measuring assembly for measuring the downward movement of the pressing rod (7) is installed on the pressing rod (7). The end of the pressing rod (7) away from the movable crossbar (4) is abutted against the surface of the paper core (2).

2. The device for detecting the strength of a paper core for winding a coated abrasive roll according to claim 1, wherein: The lever-type pressing assembly also includes: A vertical support rod (13), the vertical support rod (13) is installed on the workbench (1); The hinged rod group (3) is formed by hingedly connecting two supporting rods, and the movable cross bar (4) is installed on the top end of the vertical support rod (13) through the hinged rod group (3) away from the weight adding component end.

3. The device for detecting the strength of a paper core for winding a coated abrasive roll according to claim 1, wherein: The bottom end of the pressure rod (7) is penetrated by a vertical channel (15), the top end of the pressure rod (7) is hinged on the movable cross bar (4), and the vertical channel (15) is fixedly installed at a predetermined position.

4. The device for detecting the strength of a paper core for winding a coated abrasive roll according to claim 1, wherein: The dial indicator measuring kit includes: The dial indicator (5) is installed at a predetermined position; Mounting sleeve one (14), mounting sleeve one (14) is mounted on the measuring head of the dial indicator (5), and mounting sleeve one (14) is provided with a locking screw for connecting with the measuring head of the dial indicator (5); The second mounting sleeve (6) is sleeved on the pressure rod (7), and the pressure rod (7) is threadedly connected with an adjusting nut, and the adjusting nut is abutted against the top end of the second mounting sleeve (6); An intermediate connecting rod is connected between the first mounting sleeve (14) and the second mounting sleeve (6).

5. The device for detecting the strength of a paper core for winding a coated abrasive roll according to claim 2, wherein: The weight assembly includes: A vertical slide (8), the vertical slide (8) is installed at a predetermined position; The installation slide block (9) is slidably connected in the vertical slide groove (8), and the movable cross bar (4) is connected to the installation slide block (9) at the end away from the hinged rod group (3); A weight placement plate (10) connected to the mounting slide block (9) via a suspension rod; Cylinder one (11) and cylinder two (12), the cylinder one (11) and cylinder two (12) connected in series are located below the weight placement plate (10), the piston rod of cylinder one (11) is arranged close to the weight placement plate (10), the piston rod of cylinder two (12) is arranged in the opposite direction to the piston rod of cylinder one (11), and the piston rod of cylinder two (12) is installed at a predetermined position.

6. The device for detecting the strength of a paper core for winding a coated abrasive roll according to claim 1, wherein: A pressing head is installed on the pressing rod (7) near the end of the paper core (2).

7. The device for detecting the strength of a paper core for winding a coated abrasive roll according to claim 5, wherein: A side mounting panel is installed at the edge of the workbench (1), and the vertical channel (15), the dial indicator (5), the vertical slide (8) and the piston rod of the second cylinder (12) are all installed on the side mounting panel.